python3 -c " from docx import Document doc = Document('/tmp/workspace/attachments/87581ddc-73d9-4b76-8422-ad9a7aad8a7b/Delayed Communicating Hydrocephalus as a Sequela of Occult Culture- revised.docx') for p in doc.paragraphs: style = p.style.name if p.style else 'None' if p.text.strip(): print(f'[{style}] {p.text}') "

post-infectious hydrocephalus neonatal meningitis

BioFire FilmArray meningitis encephalitis panel cerebrospinal fluid

Haemophilus influenzae neonatal meningitis non-typeable preterm

antibiotic pretreatment CSF culture negative bacterial meningitis

PPROM preterm premature rupture membranes neonatal infection sepsis

neonatal bacterial meningitis outcomes morbidity ventriculitis hydrocephalus

PMID: 27335149

PMID: 18829794

PMID: 32093381

PMID: 38914530

PMID: 41997275

mkdir -p /tmp/workspace/case-report && ls /tmp/workspace/case-report/

python3 << 'PYEOF' from docx import Document from docx.shared import Pt, Inches, RGBColor from docx.enum.text import WD_ALIGN_PARAGRAPH from docx.oxml.ns import qn from docx.oxml import OxmlElement doc = Document() # ── Page margins ────────────────────────────────────────────────────────────── section = doc.sections[0] section.top_margin = Inches(1) section.bottom_margin = Inches(1) section.left_margin = Inches(1.25) section.right_margin = Inches(1.25) # ── Default body font ───────────────────────────────────────────────────────── normal = doc.styles["Normal"] normal.font.name = "Times New Roman" normal.font.size = Pt(12) # ── Helper: add a heading ───────────────────────────────────────────────────── def add_heading(text, level=1): p = doc.add_heading(text, level=level) run = p.runs[0] if p.runs else p.add_run(text) run.font.name = "Times New Roman" run.font.bold = True run.font.size = Pt(13 if level == 1 else 12) run.font.color.rgb = RGBColor(0, 0, 0) p.paragraph_format.space_before = Pt(12) p.paragraph_format.space_after = Pt(4) return p # ── Helper: add a body paragraph ───────────────────────────────────────────── def add_body(text, indent=False, space_after=8): p = doc.add_paragraph() p.paragraph_format.alignment = WD_ALIGN_PARAGRAPH.JUSTIFY p.paragraph_format.space_after = Pt(space_after) if indent: p.paragraph_format.first_line_indent = Inches(0.3) run = p.add_run(text) run.font.name = "Times New Roman" run.font.size = Pt(12) return p # ── TITLE ───────────────────────────────────────────────────────────────────── title = doc.add_paragraph() title.paragraph_format.alignment = WD_ALIGN_PARAGRAPH.CENTER title.paragraph_format.space_after = Pt(10) run = title.add_run( "Delayed Communicating Hydrocephalus as a Sequela of Occult Culture-Negative " "Haemophilus influenzae Meningitis in a Neonate: Diagnostic Utility of the " "CSF FilmArray Meningitis/Encephalitis Panel" ) run.font.name = "Times New Roman" run.font.size = Pt(14) run.font.bold = True # ── ABSTRACT ───────────────────────────────────────────────────────────────── add_heading("Abstract", level=1) abstract_text = ( "Post-infectious hydrocephalus is a recognized but uncommon sequela of neonatal meningitis, " "particularly when presentation is delayed and limited to progressive macrocephaly. While " "Haemophilus influenzae type b (Hib) invasive disease has markedly declined following universal " "conjugate vaccination, sporadic neonatal infections from non-typeable H. influenzae (NTHi) " "strains continue to be reported, especially in preterm infants with maternal risk factors such " "as preterm prelabor rupture of membranes (PPROM). We report a 26-day-old late preterm male " "neonate who presented with isolated progressive macrocephaly and was found to have severe " "communicating hydrocephalus. Brain MRI revealed marked ventriculomegaly with periventricular " "CSF seepage and peri-medullary adhesions indicative of prior chronic inflammation. Conventional " "CSF studies including culture, Gram stain, and AFB testing were entirely sterile, whereas " "multiplex PCR using the BioFire FilmArray Meningitis/Encephalitis (ME) Panel detected " "H. influenzae. Clinical and radiological findings together supported a probable antenatal or " "early perinatal infection culminating in silent post-inflammatory communicating hydrocephalus. " "This case highlights the diagnostic utility of molecular testing in culture-negative neonatal " "neuroinfections and the importance of recognizing occult infectious etiologies in infants with " "delayed-onset ventriculomegaly." ) add_body(abstract_text, indent=False) kw = doc.add_paragraph() kw.paragraph_format.space_after = Pt(10) r1 = kw.add_run("Keywords: ") r1.font.bold = True; r1.font.name = "Times New Roman"; r1.font.size = Pt(12) r2 = kw.add_run("Neonatal meningitis; Haemophilus influenzae; communicating hydrocephalus; " "FilmArray ME Panel; post-infectious hydrocephalus; preterm neonate; culture-negative meningitis.") r2.font.name = "Times New Roman"; r2.font.size = Pt(12) # ── INTRODUCTION ───────────────────────────────────────────────────────────── add_heading("Introduction", level=1) intro = ( "Hydrocephalus in neonates most commonly arises from intraventricular hemorrhage, congenital " "structural anomalies, or central nervous system (CNS) infections [1]. Post-infectious " "hydrocephalus develops as a consequence of leptomeningeal fibrosis and impaired CSF resorption " "at the arachnoid villi following bacterial meningitis - this communicating form contrasts with " "non-communicating hydrocephalus caused by intraventricular obstruction [2]. Neonatal ventriculitis " "complicates up to 37% of bacterial meningitis cases and remains a leading driver of shunt-dependent " "hydrocephalus and neurodevelopmental sequelae [3].\n\n" "Prior to widespread Hib conjugate vaccination, H. influenzae was among the leading causes of " "bacterial meningitis in young children. Universal immunization has dramatically reduced invasive " "Hib disease; however, NTHi strains - not covered by current vaccines - continue to cause sporadic " "neonatal sepsis and meningitis, frequently via ascending intrauterine infection in the context of " "PPROM or maternal genital tract colonization [4]. Culture-negative meningitis - especially after " "empirical antibiotic exposure - poses a significant diagnostic challenge, and conventional " "microbiological methods may fail to identify the causative organism [5].\n\n" "We describe a late preterm neonate with delayed communicating hydrocephalus in whom conventional " "CSF investigations were entirely sterile, and the FilmArray ME Panel provided the sole microbiological " "diagnosis, thereby enabling definitive etiological attribution." ) add_body(intro, indent=True) # ── CASE PRESENTATION ──────────────────────────────────────────────────────── add_heading("Case Presentation", level=1) case_text = ( "A 26-day-old male neonate, second-born to a non-consanguineous couple and a NICU graduate, " "presented to the pediatric outpatient clinic during a routine follow-up visit with a 10-day " "history of progressive head enlargement noted by the parents. He had been born at 35 weeks of " "gestation via emergency lower-segment Caesarean section performed for maternal PPROM. He required " "brief delivery room positive pressure ventilation, developed early respiratory distress managed " "with high-flow nasal cannula (HFNC) oxygen, and received empirical broad-spectrum intravenous " "antibiotics (piperacillin-tazobactam and amikacin for 7 days) for clinical sepsis during his " "initial NICU admission. He also received phototherapy for neonatal jaundice. Oral feeds were " "established by day 6 of life, and he was discharged in stable condition.\n\n" "At the current visit, the infant was afebrile and clinically well. Examination revealed macrocephaly " "(head circumference 40 cm; >97th centile for age), a tense and bulging anterior fontanelle, and " "widely separated cranial sutures. There were no focal neurological deficits, seizures, abnormal " "eye movements, sunset sign, or systemic features of active infection.\n\n" "Point-of-care cranial ultrasonography demonstrated moderate-to-severe ventriculomegaly. Subsequent " "MRI of the brain showed massive, symmetric ventriculomegaly with severe thinning of the cerebral " "cortical mantle, periventricular CSF seepage, thinning of the corpus callosum, and peri-tonsillar " "and peri-medullary adhesions (Evans index 0.46) - findings consistent with communicating " "hydrocephalus secondary to a prior inflammatory insult (Figures 1a-1c).\n\n" "Baseline blood investigations were unremarkable: hemoglobin 11.9 g/dL, total leukocyte count " "6,970/mm3, platelet count 3.37x10^5/mm3, and C-reactive protein 1 mg/L. Lumbar CSF analysis " "revealed a pauci-cellular profile (2 cells/mm3, 100% lymphocytes), normal glucose and protein. " "Gram stain, AFB stain, CBNAAT for tuberculosis, and conventional bacterial cultures were negative. " "Repeat studies from a subsequent ventricular tap (glucose 27 mg/dL, protein 91 mg/dL, acellular) " "also remained sterile by conventional methods. However, multiplex PCR using the BioFire FilmArray " "ME Panel detected H. influenzae nucleic acid in CSF, establishing a definitive infectious etiology " "despite sterile cultures.\n\n" "Congenital infection workup demonstrated reactive Rubella IgG and CMV IgG (consistent with passive " "maternal transfer), with negative HSV DNA PCR, CMV DNA PCR, and urine CMV assay. Echocardiography " "identified a small ostium secundum atrial septal defect (2.8 mm) and patent ductus arteriosus " "(2.1 mm) with left-to-right shunting; abdominal and spinal ultrasound were unremarkable. The infant " "subsequently underwent right-sided ventriculoperitoneal shunt placement and received a course of " "intravenous antibiotics with favorable clinical response." ) add_body(case_text, indent=True) # ── DISCUSSION ─────────────────────────────────────────────────────────────── add_heading("Discussion", level=1) disc = ( "This case illustrates three clinically important themes: the continuing occurrence of invasive " "NTHi disease in preterm neonates with maternal PPROM, the presentation of post-infectious " "communicating hydrocephalus as a delayed and isolated finding weeks after apparent clinical " "resolution, and the pivotal diagnostic role of multiplex molecular testing in culture-negative " "neonatal CNS infection.\n\n" "Neonatal H. influenzae infection most commonly involves NTHi strains via ascending intrauterine " "spread in the setting of PPROM or maternal cervicovaginal colonization [4]. The absence of acute " "systemic manifestations at presentation in our patient suggests that the infectious insult likely " "occurred antenatally or during the early perinatal period, with subsequent progression to a chronic " "post-inflammatory state rather than overt neonatal sepsis. Communicating hydrocephalus after " "meningitis results from leptomeningeal fibrosis and adhesion formation impairing arachnoid villi " "resorption; such delayed hydrocephalus may manifest clinically weeks after resolution of the primary " "infection, even in the absence of ongoing active inflammation [2,3].\n\n" "The pauci-cellular CSF, despite unequivocal structural evidence of prior meningitis on MRI, is best " "explained by prior antibiotic exposure during the neonatal admission. Empirical broad-spectrum " "antibiotics administered for 7 days were sufficient to eradicate viable organisms and suppress the " "cellular inflammatory response, while leaving significant structural damage. Nigrovic et al. " "demonstrated that antibiotic pretreatment alters CSF chemistry (raising glucose and lowering " "protein) while having variable effects on pleocytosis, thereby reducing the diagnostic sensitivity " "of conventional CSF parameters [5]. Sterilization of cultures after antimicrobial therapy has been " "well documented [6], and the apparent normalization of our patient's CSF biochemistry is consistent " "with this phenomenon.\n\n" "The BioFire FilmArray ME Panel proved to be the decisive diagnostic tool. Unlike culture-based " "methods that require viable organisms, multiplex PCR detects pathogen-specific nucleic acid " "sequences and retains sensitivity even after bacterial killing by antibiotics [7]. The landmark " "multicenter evaluation by Leber et al. demonstrated sensitivity and specificity exceeding 99% for " "most bacterial targets including H. influenzae across 1,560 CSF specimens [7]. The persistence of " "PCR positivity approximately three weeks after antibiotic therapy in our patient is biologically " "plausible: bacterial DNA may persist within inflammatory debris and loculated CSF compartments for " "variable periods following microbiological eradication, particularly when initial bacterial burden " "was substantial, as inferred from the severe MRI sequelae [8]. A limitation of the FilmArray " "platform is species-level identification only; it cannot differentiate Hib from NTHi strains, " "precluding definitive serotyping in the absence of a cultured isolate [4].\n\n" "Post-infectious hydrocephalus as a sequela of neonatal meningitis requiring ventriculoperitoneal " "shunt placement has been documented following various bacterial pathogens including Listeria " "monocytogenes [1] and Gram-negative organisms [3]. What is unusual in this case is the entirely " "occult clinical course - no recognized meningitic illness, no CSF pleocytosis at presentation, " "and sterile conventional cultures - with the only evidence of prior CNS infection being positive " "molecular testing and characteristic post-inflammatory MRI changes. This constellation should " "prompt clinicians to broaden the differential diagnosis in neonates with unexplained progressive " "ventriculomegaly beyond structural and hemorrhagic causes." ) add_body(disc, indent=True) # ── CONCLUSION ─────────────────────────────────────────────────────────────── add_heading("Conclusion", level=1) conc = ( "This report documents a rare presentation of delayed communicating hydrocephalus secondary to " "probable antenatal or early perinatal H. influenzae CNS infection in a late preterm neonate. " "The case emphasizes the evolving and indispensable role of multiplex PCR in diagnosing " "culture-negative neonatal meningitis and reinforces the need to consider occult infectious " "etiologies when evaluating neonates with delayed-onset ventriculomegaly and a history of " "perinatal risk factors, even in the absence of classic meningitic features." ) add_body(conc, indent=True) # ── REFERENCES ─────────────────────────────────────────────────────────────── add_heading("References", level=1) refs = [ "[1] D'Sa S, Saleh E, Chaudhary S, Rodriguez M. Post-infectious hydrocephalus complicating Listeria meningitis in a healthy newborn. BMJ Case Rep. 2024;17(6):e258825. doi:10.1136/bcr-2023-258825. PMID: 38914530.", "[2] Volpe JJ. Neurology of the Newborn. 6th ed. Philadelphia: Elsevier; 2018.", "[3] Lani E, Nikolinakos P, Larard C, et al. Intraventricular antibiotic administration for the treatment of neonatal ventriculitis: a systematic review. Neuropediatrics. 2026. doi:10.1055/a-2856-1574. PMID: 41997275.", "[4] Roy Chowdhury S, Bharadwaj S, Chandran S. Fatal, fulminant and invasive non-typeable Haemophilus influenzae infection in a preterm infant: a re-emerging cause of neonatal sepsis. Trop Med Infect Dis. 2020;5(1):30. doi:10.3390/tropicalmed5010030. PMID: 32093381.", "[5] Nigrovic LE, Malley R, Macias CG, et al. Effect of antibiotic pretreatment on cerebrospinal fluid profiles of children with bacterial meningitis. Pediatrics. 2008;122(4):726-730. doi:10.1542/peds.2007-3275. PMID: 18829794.", "[6] Goldenberg RL, Hauth JC, Andrews WW. Intrauterine infection and preterm delivery. N Engl J Med. 2000;342(20):1500-1507.", "[7] Leber AL, Everhart K, Balada-Llasat JM, et al. Multicenter evaluation of BioFire FilmArray Meningitis/Encephalitis Panel for detection of bacteria, viruses, and yeast in cerebrospinal fluid specimens. J Clin Microbiol. 2016;54(9):2251-2261. doi:10.1128/JCM.00730-16. PMID: 27335149.", "[8] Liesman RM, Strasburg AP, Heitman AK, Theel ES, Patel R, Binnicker MJ. Evaluation of a commercial multiplex molecular panel for diagnosis of infectious meningitis and encephalitis. J Clin Microbiol. 2018;56(4):e01927-17. PMID: 29367293.", ] for ref in refs: p = doc.add_paragraph() p.paragraph_format.space_after = Pt(4) p.paragraph_format.left_indent = Inches(0.3) p.paragraph_format.first_line_indent = Inches(-0.3) run = p.add_run(ref) run.font.name = "Times New Roman" run.font.size = Pt(11) # ── Save ───────────────────────────────────────────────────────────────────── out = "/tmp/workspace/case-report/Hydrocephalus_FilmArray_CaseReport.docx" doc.save(out) print(f"Saved: {out}") # Word count (body only, excluding references) wc = 0 for p in doc.paragraphs: if p.text.strip() and not p.text.strip().startswith("["): wc += len(p.text.split()) print(f"Approximate word count (excl. references): {wc}") PYEOF

python3 << 'PYEOF' # Count just the narrative sections sections = { "Intro": """This case illustrates three clinically important themes: the continuing occurrence of invasive NTHi disease in preterm neonates with maternal PPROM, the presentation of post-infectious communicating hydrocephalus as a delayed and isolated finding weeks after apparent clinical resolution, and the pivotal diagnostic role of multiplex molecular testing in culture-negative neonatal CNS infection. Neonatal H. influenzae infection most commonly involves NTHi strains via ascending intrauterine spread in the setting of PPROM or maternal cervicovaginal colonization. The absence of acute systemic manifestations at presentation in our patient suggests that the infectious insult likely occurred antenatally or during the early perinatal period, with subsequent progression to a chronic post-inflammatory state rather than overt neonatal sepsis. Communicating hydrocephalus after meningitis results from leptomeningeal fibrosis and adhesion formation impairing arachnoid villi resorption; such delayed hydrocephalus may manifest clinically weeks after resolution of the primary infection, even in the absence of ongoing active inflammation. The pauci-cellular CSF, despite unequivocal structural evidence of prior meningitis on MRI, is best explained by prior antibiotic exposure during the neonatal admission. Empirical broad-spectrum antibiotics administered for 7 days were sufficient to eradicate viable organisms and suppress the cellular inflammatory response, while leaving significant structural damage. Nigrovic et al. demonstrated that antibiotic pretreatment alters CSF chemistry while having variable effects on pleocytosis, thereby reducing the diagnostic sensitivity of conventional CSF parameters. Sterilization of cultures after antimicrobial therapy has been well documented, and the apparent normalization of our patient's CSF biochemistry is consistent with this phenomenon. The BioFire FilmArray ME Panel proved to be the decisive diagnostic tool. Unlike culture-based methods that require viable organisms, multiplex PCR detects pathogen-specific nucleic acid sequences and retains sensitivity even after bacterial killing by antibiotics. The landmark multicenter evaluation by Leber et al. demonstrated sensitivity and specificity exceeding 99% for most bacterial targets including H. influenzae across 1,560 CSF specimens. The persistence of PCR positivity approximately three weeks after antibiotic therapy in our patient is biologically plausible: bacterial DNA may persist within inflammatory debris and loculated CSF compartments for variable periods following microbiological eradication, particularly when initial bacterial burden was substantial, as inferred from the severe MRI sequelae. A limitation of the FilmArray platform is species-level identification only; it cannot differentiate Hib from NTHi strains, precluding definitive serotyping in the absence of a cultured isolate. Post-infectious hydrocephalus as a sequela of neonatal meningitis requiring ventriculoperitoneal shunt placement has been documented following various bacterial pathogens. What is unusual in this case is the entirely occult clinical course - no recognized meningitic illness, no CSF pleocytosis at presentation, and sterile conventional cultures - with the only evidence of prior CNS infection being positive molecular testing and characteristic post-inflammatory MRI changes. This constellation should prompt clinicians to broaden the differential diagnosis in neonates with unexplained progressive ventriculomegaly beyond structural and hemorrhagic causes.""" } for k,v in sections.items(): print(k, len(v.split()), "words") PYEOF

python3 << 'PYEOF' intro = """Hydrocephalus in neonates most commonly arises from intraventricular hemorrhage, congenital structural anomalies, or central nervous system (CNS) infections. Post-infectious hydrocephalus develops as a consequence of leptomeningeal fibrosis and impaired CSF resorption at the arachnoid villi following bacterial meningitis - this communicating form contrasts with non-communicating hydrocephalus caused by intraventricular obstruction. Neonatal ventriculitis complicates up to 37% of bacterial meningitis cases and remains a leading driver of shunt-dependent hydrocephalus and neurodevelopmental sequelae. Prior to widespread Hib conjugate vaccination, H. influenzae was among the leading causes of bacterial meningitis in young children. Universal immunization has dramatically reduced invasive Hib disease; however, NTHi strains - not covered by current vaccines - continue to cause sporadic neonatal sepsis and meningitis, frequently via ascending intrauterine infection in the context of PPROM or maternal genital tract colonization. Culture-negative meningitis - especially after empirical antibiotic exposure - poses a significant diagnostic challenge, and conventional microbiological methods may fail to identify the causative organism. We describe a late preterm neonate with delayed communicating hydrocephalus in whom conventional CSF investigations were entirely sterile, and the FilmArray ME Panel provided the sole microbiological diagnosis, thereby enabling definitive etiological attribution.""" case = """A 26-day-old male neonate, second-born to a non-consanguineous couple and a NICU graduate, presented to the pediatric outpatient clinic during a routine follow-up visit with a 10-day history of progressive head enlargement noted by the parents. He had been born at 35 weeks of gestation via emergency lower-segment Caesarean section performed for maternal PPROM. He required brief delivery room positive pressure ventilation, developed early respiratory distress managed with high-flow nasal cannula (HFNC) oxygen, and received empirical broad-spectrum intravenous antibiotics (piperacillin-tazobactam and amikacin for 7 days) for clinical sepsis during his initial NICU admission. He also received phototherapy for neonatal jaundice. Oral feeds were established by day 6 of life, and he was discharged in stable condition. At the current visit, the infant was afebrile and clinically well. Examination revealed macrocephaly (head circumference 40 cm; >97th centile for age), a tense and bulging anterior fontanelle, and widely separated cranial sutures. There were no focal neurological deficits, seizures, abnormal eye movements, sunset sign, or systemic features of active infection. Point-of-care cranial ultrasonography demonstrated moderate-to-severe ventriculomegaly. Subsequent MRI of the brain showed massive, symmetric ventriculomegaly with severe thinning of the cerebral cortical mantle, periventricular CSF seepage, thinning of the corpus callosum, and peri-tonsillar and peri-medullary adhesions (Evans index 0.46) - findings consistent with communicating hydrocephalus secondary to a prior inflammatory insult (Figures 1a-1c). Baseline blood investigations were unremarkable: hemoglobin 11.9 g/dL, total leukocyte count 6,970/mm3, platelet count 3.37x10^5/mm3, and C-reactive protein 1 mg/L. Lumbar CSF analysis revealed a pauci-cellular profile (2 cells/mm3, 100% lymphocytes), normal glucose and protein. Gram stain, AFB stain, CBNAAT for tuberculosis, and conventional bacterial cultures were negative. Repeat studies from a subsequent ventricular tap (glucose 27 mg/dL, protein 91 mg/dL, acellular) also remained sterile by conventional methods. However, multiplex PCR using the BioFire FilmArray ME Panel detected H. influenzae nucleic acid in CSF, establishing a definitive infectious etiology despite sterile cultures. Congenital infection workup demonstrated reactive Rubella IgG and CMV IgG (consistent with passive maternal transfer), with negative HSV DNA PCR, CMV DNA PCR, and urine CMV assay. Echocardiography identified a small ostium secundum atrial septal defect (2.8 mm) and patent ductus arteriosus (2.1 mm) with left-to-right shunting; abdominal and spinal ultrasound were unremarkable. The infant subsequently underwent right-sided ventriculoperitoneal shunt placement and received a course of intravenous antibiotics with favorable clinical response.""" disc = """This case illustrates three clinically important themes: the continuing occurrence of invasive NTHi disease in preterm neonates with maternal PPROM, the presentation of post-infectious communicating hydrocephalus as a delayed and isolated finding weeks after apparent clinical resolution, and the pivotal diagnostic role of multiplex molecular testing in culture-negative neonatal CNS infection. Neonatal H. influenzae infection most commonly involves NTHi strains via ascending intrauterine spread in the setting of PPROM or maternal cervicovaginal colonization. The absence of acute systemic manifestations at presentation suggests the infectious insult likely occurred antenatally or during the early perinatal period, with subsequent progression to a chronic post-inflammatory state. Communicating hydrocephalus after meningitis results from leptomeningeal fibrosis and adhesion formation impairing arachnoid villi resorption; such delayed hydrocephalus may manifest weeks after resolution of the primary infection, even without ongoing active inflammation. The pauci-cellular CSF, despite unequivocal structural evidence of prior meningitis on MRI, is best explained by prior antibiotic exposure. Nigrovic et al. demonstrated that antibiotic pretreatment alters CSF chemistry and reduces sensitivity of conventional parameters for diagnosing bacterial meningitis. Culture sterilization after antimicrobial therapy is well-documented, and the near-normal biochemistry observed in our patient is consistent with this effect. The BioFire FilmArray ME Panel was the decisive diagnostic tool. Unlike culture-based methods requiring viable organisms, multiplex PCR detects pathogen nucleic acid sequences and retains sensitivity even after bacterial eradication. The multicenter evaluation by Leber et al. reported sensitivity and specificity exceeding 99% for most bacterial targets including H. influenzae across 1,560 CSF specimens. Persistent PCR positivity approximately three weeks after antibiotic therapy is biologically plausible, as bacterial DNA may persist within inflammatory debris and loculated CSF spaces following microbiological eradication, particularly when prior bacterial burden was substantial - as inferred from the severe MRI sequelae. A platform limitation is species-level identification only; Hib cannot be distinguished from NTHi without a cultured isolate. What is unusual in this case is the entirely occult clinical course: no recognized acute meningitic illness, no CSF pleocytosis at presentation, and sterile conventional cultures. The sole microbiological evidence of prior CNS infection was a positive FilmArray result, supported by characteristic post-inflammatory MRI changes. This constellation should prompt clinicians to consider occult infectious etiologies in neonates presenting with unexplained progressive ventriculomegaly, particularly those with a perinatal history of PPROM or empirical antibiotic exposure.""" conc = """This report documents a rare presentation of delayed communicating hydrocephalus secondary to probable antenatal or early perinatal H. influenzae CNS infection in a late preterm neonate. The case emphasizes the indispensable role of multiplex PCR in diagnosing culture-negative neonatal meningitis and reinforces the need to consider occult infectious etiologies when evaluating neonates with delayed-onset ventriculomegaly and a perinatal history of risk factors, even in the absence of classic meningitic features.""" total = len((intro+case+disc+conc).split()) print(f"Total narrative word count: {total}") PYEOF

python3 << 'PYEOF' from docx import Document from docx.shared import Pt, Inches, RGBColor from docx.enum.text import WD_ALIGN_PARAGRAPH doc = Document() section = doc.sections[0] section.top_margin = Inches(1) section.bottom_margin = Inches(1) section.left_margin = Inches(1.25) section.right_margin = Inches(1.25) normal = doc.styles["Normal"] normal.font.name = "Times New Roman" normal.font.size = Pt(12) def add_heading(text, level=1): p = doc.add_heading(text, level=level) for run in p.runs: run.font.name = "Times New Roman" run.font.bold = True run.font.size = Pt(13 if level == 1 else 12) run.font.color.rgb = RGBColor(0, 0, 0) p.paragraph_format.space_before = Pt(12) p.paragraph_format.space_after = Pt(4) return p def add_body(text, indent=True, size=12, space_after=8): p = doc.add_paragraph() p.paragraph_format.alignment = WD_ALIGN_PARAGRAPH.JUSTIFY p.paragraph_format.space_after = Pt(space_after) if indent: p.paragraph_format.first_line_indent = Inches(0.3) run = p.add_run(text) run.font.name = "Times New Roman" run.font.size = Pt(size) return p # ───────────────────────────────────────────────────────────────────────────── # TITLE # ───────────────────────────────────────────────────────────────────────────── t = doc.add_paragraph() t.paragraph_format.alignment = WD_ALIGN_PARAGRAPH.CENTER t.paragraph_format.space_after = Pt(10) r = t.add_run( "Delayed Communicating Hydrocephalus as a Sequela of Occult Culture-Negative " "Haemophilus influenzae Meningitis in a Neonate: Diagnostic Utility of the " "CSF FilmArray Meningitis/Encephalitis Panel" ) r.font.name = "Times New Roman" r.font.size = Pt(14) r.font.bold = True # ───────────────────────────────────────────────────────────────────────────── # ABSTRACT # ───────────────────────────────────────────────────────────────────────────── add_heading("Abstract", 1) add_body( "Post-infectious hydrocephalus is a recognized but uncommon sequela of neonatal meningitis, " "particularly when presentation is delayed and limited to progressive macrocephaly. While " "Haemophilus influenzae type b (Hib) invasive disease has markedly declined following universal " "conjugate vaccination, sporadic neonatal infections from non-typeable H. influenzae (NTHi) strains " "continue to be reported, especially in preterm infants exposed to maternal preterm prelabor rupture " "of membranes (PPROM). We report a 26-day-old late preterm male neonate who presented with isolated " "progressive macrocephaly and was found to have severe communicating hydrocephalus. Brain MRI revealed " "marked ventriculomegaly with periventricular CSF seepage and peri-medullary adhesions indicative of " "prior chronic inflammation. Conventional CSF studies including culture, Gram stain, and AFB testing " "were entirely sterile, whereas multiplex PCR using the BioFire FilmArray Meningitis/Encephalitis (ME) " "Panel detected H. influenzae. Clinical and radiological findings supported a probable antenatal or " "early perinatal infection culminating in silent post-inflammatory communicating hydrocephalus. This " "case highlights the diagnostic utility of molecular testing in culture-negative neonatal " "neuroinfections and the importance of considering occult infectious etiologies in infants with " "delayed-onset ventriculomegaly.", indent=False ) kw = doc.add_paragraph() kw.paragraph_format.space_after = Pt(10) r1 = kw.add_run("Keywords: "); r1.bold=True; r1.font.name="Times New Roman"; r1.font.size=Pt(12) r2 = kw.add_run("Neonatal meningitis; Haemophilus influenzae; communicating hydrocephalus; " "FilmArray ME Panel; post-infectious hydrocephalus; preterm neonate; culture-negative meningitis.") r2.font.name="Times New Roman"; r2.font.size=Pt(12) # ───────────────────────────────────────────────────────────────────────────── # INTRODUCTION # ───────────────────────────────────────────────────────────────────────────── add_heading("Introduction", 1) add_body( "Hydrocephalus in neonates most commonly arises from intraventricular hemorrhage, congenital " "structural anomalies, or central nervous system (CNS) infections [1]. Post-infectious hydrocephalus " "develops as a consequence of leptomeningeal fibrosis and impaired CSF resorption at the arachnoid " "villi following bacterial meningitis; this communicating form contrasts with non-communicating " "hydrocephalus caused by intraventricular obstruction [2]. Neonatal ventriculitis complicates up to " "37% of bacterial meningitis cases and is a leading driver of shunt-dependent hydrocephalus and " "long-term neurodevelopmental sequelae [3]." ) add_body( "Prior to widespread Hib conjugate vaccination, H. influenzae was among the leading causes of " "bacterial meningitis in young children. Universal immunization has dramatically reduced invasive " "Hib disease; however, NTHi strains - not covered by current vaccines - continue to cause sporadic " "neonatal sepsis and meningitis, frequently via ascending intrauterine infection in the context of " "PPROM or maternal genital tract colonization [4]. Culture-negative meningitis, particularly after " "empirical antibiotic exposure, poses a significant diagnostic challenge and conventional " "microbiological methods often fail to identify the causative organism [5]." ) add_body( "We describe a late preterm neonate with delayed communicating hydrocephalus in whom all conventional " "CSF investigations were sterile, and the FilmArray ME Panel provided the sole microbiological " "diagnosis, enabling definitive etiological attribution." ) # ───────────────────────────────────────────────────────────────────────────── # CASE PRESENTATION # ───────────────────────────────────────────────────────────────────────────── add_heading("Case Presentation", 1) add_body( "A 26-day-old male neonate, second-born to a non-consanguineous couple and a NICU graduate, " "presented during a routine follow-up visit with a 10-day history of progressive head enlargement. " "He was born at 35 weeks of gestation via emergency lower-segment Caesarean section for maternal PPROM. " "He required brief delivery room positive pressure ventilation, developed early respiratory distress " "managed with high-flow nasal cannula (HFNC) oxygen, and received empirical intravenous antibiotics " "(piperacillin-tazobactam and amikacin for 7 days) for clinical sepsis during his NICU admission. He " "also received phototherapy for neonatal jaundice, with direct breastfeeding established by day 6 and " "discharge in stable condition." ) add_body( "At presentation, the infant was afebrile and systemically well. Examination revealed macrocephaly " "(head circumference 40 cm; >97th centile for age), a tense, bulging anterior fontanelle, and widely " "separated cranial sutures. There were no focal neurological deficits, seizures, abnormal eye " "movements, sunset sign, or systemic features of active infection." ) add_body( "Cranial ultrasonography demonstrated moderate-to-severe ventriculomegaly. MRI of the brain showed " "massive symmetric ventriculomegaly with severe thinning of the cerebral cortical mantle, periventricular " "CSF seepage, thinning of the corpus callosum, and peri-tonsillar and peri-medullary adhesions (Evans " "index 0.46), consistent with communicating hydrocephalus secondary to a prior inflammatory insult " "(Figures 1a-1c)." ) add_body( "Baseline blood investigations were unremarkable: hemoglobin 11.9 g/dL, total leukocyte count " "6,970/mm\u00b3, platelet count 3.37 \u00d710\u2075/mm\u00b3, and C-reactive protein 1 mg/L. Lumbar " "CSF analysis revealed a pauci-cellular profile (2 cells/mm\u00b3, 100% lymphocytes) with normal " "glucose and protein. Gram stain, AFB stain, CBNAAT for tuberculosis, and conventional bacterial " "cultures were negative. A subsequent ventricular tap (glucose 27 mg/dL, protein 91 mg/dL, acellular) " "likewise remained sterile. However, multiplex PCR using the BioFire FilmArray ME Panel detected " "H. influenzae nucleic acid in CSF, establishing a definitive infectious etiology." ) add_body( "Congenital infection workup demonstrated reactive Rubella IgG and CMV IgG (consistent with passive " "maternal transfer), with negative HSV DNA PCR, CMV DNA PCR, and urine CMV assay. Echocardiography " "identified a small ostium secundum atrial septal defect (2.8 mm) and patent ductus arteriosus " "(2.1 mm) with left-to-right shunting. Abdominal and spinal ultrasound were unremarkable. The infant " "underwent right-sided ventriculoperitoneal shunt placement and received intravenous antibiotics " "with favorable clinical recovery." ) # ───────────────────────────────────────────────────────────────────────────── # DISCUSSION # ───────────────────────────────────────────────────────────────────────────── add_heading("Discussion", 1) add_body( "This case illustrates three clinically important themes: the continuing risk of invasive NTHi " "disease in preterm neonates with maternal PPROM, the delayed and isolated presentation of " "post-infectious communicating hydrocephalus weeks after apparent clinical resolution, and the " "pivotal role of multiplex molecular testing in culture-negative neonatal CNS infection." ) add_body( "Neonatal H. influenzae infection most commonly involves NTHi strains via ascending intrauterine " "spread in the setting of PPROM or maternal cervicovaginal colonization [4]. The absence of acute " "systemic manifestations at presentation suggests the infectious insult likely occurred antenatally " "or in the early perinatal period, culminating in a chronic post-inflammatory state rather than overt " "neonatal sepsis. Communicating hydrocephalus after meningitis results from leptomeningeal fibrosis " "impairing arachnoid villi resorption and may manifest clinically weeks after resolution of the " "primary infection, even without ongoing active inflammation [1,2]." ) add_body( "The pauci-cellular CSF despite unequivocal structural evidence of prior meningitis on MRI is best " "explained by prior antibiotic exposure. Nigrovic et al. demonstrated that antibiotic pretreatment " "modifies CSF chemistry and reduces the diagnostic sensitivity of conventional parameters in " "bacterial meningitis [5]. Culture sterilization after antimicrobial therapy is well-documented [6], " "and the near-normal CSF biochemistry observed in our patient is fully consistent with this effect." ) add_body( "The BioFire FilmArray ME Panel was the decisive diagnostic tool. Unlike culture-based methods " "that require viable organisms, multiplex PCR detects pathogen nucleic acid sequences and retains " "sensitivity after bacterial eradication by antibiotics [7]. The multicenter evaluation by Leber " "et al. reported sensitivity and specificity exceeding 99% for most bacterial targets including " "H. influenzae across 1,560 CSF specimens [7]. Persistent PCR positivity approximately three weeks " "after antibiotic therapy is biologically plausible: bacterial DNA may persist within inflammatory " "debris and loculated CSF spaces following microbiological eradication, especially when prior " "bacterial burden was substantial, as inferred from the severe MRI sequelae [8]. A platform " "limitation is species-level identification only; Hib cannot be differentiated from NTHi without " "a cultured isolate [4]." ) add_body( "What is unusual about this case is the entirely occult clinical course: no recognized acute " "meningitic illness, no CSF pleocytosis at presentation, and sterile conventional cultures. " "The sole microbiological evidence of prior CNS infection was a positive FilmArray result, " "corroborated by characteristic post-inflammatory MRI changes. This constellation should prompt " "clinicians to consider occult infectious etiologies in neonates with unexplained progressive " "ventriculomegaly, especially those with a perinatal history of PPROM or empirical antibiotic exposure." ) # ───────────────────────────────────────────────────────────────────────────── # CONCLUSION # ───────────────────────────────────────────────────────────────────────────── add_heading("Conclusion", 1) add_body( "This report documents a rare presentation of delayed communicating hydrocephalus secondary to " "probable antenatal or early perinatal H. influenzae CNS infection in a late preterm neonate. " "The case emphasizes the indispensable role of multiplex PCR in diagnosing culture-negative neonatal " "meningitis and reinforces the need to consider occult infectious etiologies when evaluating neonates " "with delayed-onset ventriculomegaly and perinatal risk factors, even in the absence of classic " "meningitic features or CSF pleocytosis." ) # ───────────────────────────────────────────────────────────────────────────── # REFERENCES # ───────────────────────────────────────────────────────────────────────────── add_heading("References", 1) refs = [ "1. D'Sa S, Saleh E, Chaudhary S, Rodriguez M. Post-infectious hydrocephalus complicating Listeria meningitis in a healthy newborn. BMJ Case Rep. 2024;17(6):e258825. doi:10.1136/bcr-2023-258825. PMID: 38914530.", "2. Volpe JJ. Neurology of the Newborn. 6th ed. Philadelphia: Elsevier; 2018.", "3. Lani E, Nikolinakos P, Larard C, et al. Intraventricular antibiotic administration for the treatment of neonatal ventriculitis: a systematic review. Neuropediatrics. 2026. doi:10.1055/a-2856-1574. PMID: 41997275.", "4. Roy Chowdhury S, Bharadwaj S, Chandran S. Fatal, fulminant and invasive non-typeable Haemophilus influenzae infection in a preterm infant: a re-emerging cause of neonatal sepsis. Trop Med Infect Dis. 2020;5(1):30. doi:10.3390/tropicalmed5010030. PMID: 32093381.", "5. Nigrovic LE, Malley R, Macias CG, et al. Effect of antibiotic pretreatment on cerebrospinal fluid profiles of children with bacterial meningitis. Pediatrics. 2008;122(4):726-730. doi:10.1542/peds.2007-3275. PMID: 18829794.", "6. Goldenberg RL, Hauth JC, Andrews WW. Intrauterine infection and preterm delivery. N Engl J Med. 2000;342(20):1500-1507.", "7. Leber AL, Everhart K, Balada-Llasat JM, et al. Multicenter evaluation of BioFire FilmArray Meningitis/Encephalitis Panel for detection of bacteria, viruses, and yeast in cerebrospinal fluid specimens. J Clin Microbiol. 2016;54(9):2251-2261. doi:10.1128/JCM.00730-16. PMID: 27335149.", "8. Liesman RM, Strasburg AP, Heitman AK, Theel ES, Patel R, Binnicker MJ. Evaluation of a commercial multiplex molecular panel for diagnosis of infectious meningitis and encephalitis. J Clin Microbiol. 2018;56(4):e01927-17. PMID: 29367293.", ] for ref in refs: p = doc.add_paragraph() p.paragraph_format.space_after = Pt(4) p.paragraph_format.left_indent = Inches(0.3) p.paragraph_format.first_line_indent = Inches(-0.3) run = p.add_run(ref) run.font.name = "Times New Roman" run.font.size = Pt(11) # ───────────────────────────────────────────────────────────────────────────── out = "/tmp/workspace/case-report/Hydrocephalus_FilmArray_CaseReport_Final.docx" doc.save(out) print(f"Saved: {out}") # Count narrative words from docx import Document as D d2 = D(out) body_paras = [] capture = False for p in d2.paragraphs: t = p.text.strip() if t in ("Introduction", "Case Presentation", "Discussion", "Conclusion"): capture = True elif t in ("Abstract", "References"): capture = False elif capture and t: body_paras.append(t) wc = sum(len(p.split()) for p in body_paras) print(f"Narrative word count (Intro+Case+Discussion+Conclusion): {wc}") PYEOF