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  sections: [{
    properties: {
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        margin: { top: 1440, bottom: 1440, left: 1440, right: 1440 }
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    children: [

      // TITLE
      new Paragraph({
        children: [new TextRun({ text: 'Comparison of Mean Peak Flow Rate in Holmium Laser Versus Cold Knife Treatment in Patients with Urethral Strictures', bold: true, size: 28 })],
        alignment: AlignmentType.CENTER,
        spacing: { after: 240 },
      }),

      // INTRODUCTION heading
      heading('Introduction'),

      // Para 1
      para([
        n('One of the oldest known urological disorders, urethral stricture '),
        b('is'),
        n(' still common and difficult to treat today '),
        b('(Payne '),
        b('et al.'),
        b(', 2022)'),
        n('. It is a prevalent '),
        b('condition'),
        n(' with a prominent rate of morbidity; in industrialized regions, its estimated prevalence is approximately 0.6%, and in '),
        b('low-income'),
        n(' countries, it may be greater '),
        b('(Payne '),
        b('et al.'),
        b(', 2022)'),
        n('. The '),
        b("stricture's"),
        n(' depth, location, and length of scarring all affect the available treatment '),
        b('options'),
        n('. These '),
        b('include'),
        n(' cold-knife urethrotomy, electrocautery, and several '),
        b('types'),
        n(' of laser '),
        b('therapies'),
        b(' (Chen '),
        b('et al.'),
        b(', 2024)'),
        n('.'),
      ]),

      // Para 2
      para([
        n('In the past 20 years, these '),
        b('[laser therapies]'),
        n(' have become especially popular. While avoiding thermal injury to the surrounding tissues, a cold-knife incision may result in mechanical injuries that could '),
        b('induce'),
        n(' recurrence '),
        b('(Faizan '),
        b('et al.'),
        b(', 2024)'),
        n('. In contrast, electrocautery may result in severe heat injury and '),
        b('repeated'),
        n(' strictures '),
        b('(Cebeci, 2022)'),
        n('. Because of its accuracy and effectiveness, the Holmium:YAG (Ho:YAG) laser has emerged as the most popular option among laser treatments in recent years. The Sachse Urethrotome is carefully advanced to the stricture site'),
        b(','),
        n(' and the stricture is then incised using a 12 '),
        b("o'clock"),
        n(' position technique until adequately treated '),
        b('(Srilakshmi and Hegre, 2022)'),
        n('. Additionally, urethral strictures are treated with a variety of lasers, including argon, carbon dioxide, potassium titanyl phosphate (KTP), neodymium (Nd:'),
        b(')'),
        n(' yttrium aluminium-garnet (YAG), and holmium (Ho):YAG '),
        b('(Del Zingaro '),
        b('et al.'),
        b(', 2021)'),
        n('. Because of '),
        b('its'),
        n(' great precision and low heat impact on nearby tissues, the Ho:YAG laser is becoming a popular technique for endourology '),
        b('(Akdemir '),
        b('et al.'),
        b(', 2023)'),
        n('.'),
      ]),

      // Para 3
      para([
        n('One hundred and thirty patients with urethral strictures were recruited by Shaikh '),
        b('et al.'),
        n(' (2023) and '),
        b('divided'),
        n(' equally into two groups. A cold knife was used '),
        b('for'),
        n(' Group A, while a holmium laser was employed in Group B. On '),
        b('the'),
        n(' third day, the average peak flow rates for '),
        b('Groups'),
        n(' A and B were 26.66'),
        n('\u00b1'),
        n('3.69 ml/s and 28.72'),
        n('\u00b1'),
        n('4.63 ml/s, respectively. On day 30, the '),
        b('peak'),
        n(' flow rates in '),
        b('Groups'),
        n(' A and B '),
        b('were'),
        n(' 24.00'),
        n('\u00b1'),
        n('3.44 ml/s and 20.84'),
        n('\u00b1'),
        n('2.77 ml/s, respectively (p=0.000) '),
        b('(Shaikh '),
        b('et al.'),
        b(', 2023)'),
        n('. '),
        b('Ali Maged et al. (2021)'),
        n(' '),
        b('conducted a study in which'),
        n(' Group A (holmium group, n = 10) and Group B (cold knife group, n = 10) each '),
        b('underwent'),
        n(' internal urethrotomy using a holmium laser and a cold knife, respectively. At the end of the third month, the holmium group experienced a greater post-operative '),
        b('decline'),
        n(' in peak flow rate than the cold knife group '),
        b('(Ali Maged '),
        b('et al.'),
        b(', 2021)'),
        n('.'),
      ]),

      // Para 4 – rationale (no existing citations)
      para([
        n('The purpose of this study is to evaluate the effectiveness of optical internal urethrotomy, which uses a holmium laser in comparison to a cold knife, in treating short-segment urethral strictures in '),
        b('a'),
        n(' local setting. The study will help standardise treatment protocols for urethral stricture based on functional results. The local findings will encourage adoption of minimally invasive laser techniques in public hospitals, improving access to modern urologic care. The study will help in informed decision-making, enabling patients to understand treatment options and their expected outcomes based on evidence.'),
      ]),

      // OBJECTIVE
      new Paragraph({
        children: [
          new TextRun({ text: 'Objective:', bold: true, size: 24 }),
          new TextRun({ text: ' To compare mean peak flow rate in holmium laser versus cold knife treatment in patients with urethral strictures.', size: 24 }),
        ],
        spacing: { before: 200, after: 160 },
      }),

      // OPERATIONAL DEFINITIONS
      heading('Operational Definitions'),

      defPara(
        [new TextRun({ text: 'Urethral Stricture: ', bold: true, size: 24 })],
        [new TextRun({ text: 'Patients with urinary obstructive symptoms, urinary flow < 15 ml/sec on uroflowmetry, and micturating cystourethrography showing a narrowed urethral segment (abrupt change in urethral calibre) with absent or reduced contrast filling and proximal urethral dilatation will be labelled as having urethral stricture.', size: 24 })]
      ),

      defPara(
        [new TextRun({ text: 'Peak Urinary Flow Rate: ', bold: true, size: 24 })],
        [new TextRun({ text: 'Urinary flow in ml/sec will be measured on uroflowmetry at enrolment and 30 days post-operatively.', size: 24 })]
      ),

      defPara(
        [new TextRun({ text: 'Obesity: ', bold: true, size: 24 })],
        [new TextRun({ text: 'Obesity will be assessed through body mass index (BMI). BMI will be calculated by the formula: weight in kg / height in metres\u00b2. Weight will be measured on a weighing scale and height on a stadiometer. A BMI of \u226527.5 kg/m\u00b2 will be taken as obese.', size: 24 })]
      ),

      defPara(
        [new TextRun({ text: 'Diabetes Mellitus (DM): ', bold: true, size: 24 })],
        [new TextRun({ text: 'DM will be deemed positive if the patient is a known case of diabetes mellitus on hypoglycaemic therapy for \u22651 year, assessed on history and medical record.', size: 24 })]
      ),

      defPara(
        [new TextRun({ text: 'Smoker: ', bold: true, size: 24 })],
        [new TextRun({ text: 'A current smoker who has smoked \u226510 cigarettes per day for two years will be labelled as a smoker.', size: 24 })]
      ),

      defPara(
        [new TextRun({ text: 'Hypertension: ', bold: true, size: 24 })],
        [new TextRun({ text: 'Hypertension will be deemed positive if the patient is a known case of hypertension on antihypertensive therapy for \u22651 year, assessed on history and medical record.', size: 24 })]
      ),

      // HYPOTHESIS
      new Paragraph({
        children: [
          new TextRun({ text: 'Hypothesis: ', bold: true, size: 24 }),
          new TextRun({ text: 'Urinary flow rate 30 days post-operatively will be higher in cold-knife compared to holmium laser internal urethrotomy for urethral strictures.', size: 24 }),
        ],
        spacing: { before: 200, after: 200 },
      }),

      // MATERIAL & METHODS
      heading('Material and Methods'),

      subheading('Setting:'),
      new Paragraph({ children: [n('Department of Urology, Sahiwal Teaching Hospital')], spacing: { after: 80 } }),

      subheading('Study Design:'),
      new Paragraph({ children: [n('Randomised Controlled Trial')], spacing: { after: 80 } }),

      subheading('Duration:'),
      new Paragraph({ children: [n('Six months after approval of synopsis')], spacing: { after: 80 } }),

      subheading('Sample Size (Shaikh et al., 2023):'),
      new Paragraph({
        children: [
          n('Sample size was calculated through OpenEpi online software using the mean difference formula, where:'),
        ],
        spacing: { after: 80 },
      }),
      new Paragraph({ children: [n('Peak flow rate in cold-knife = 24.00\u00b13.44 ml/s'), n('     Power of the study = 80%')], spacing: { after: 60 }, indent: { left: 360 } }),
      new Paragraph({ children: [n('Peak flow rate in holmium laser = 20.84\u00b12.77 ml/s'), n('     Confidence level = 95%')], spacing: { after: 60 }, indent: { left: 360 } }),
      new Paragraph({ children: [n('Sample size = 30 in each group, Total sample size = '), new TextRun({ text: '60', bold: true })], spacing: { after: 120 }, indent: { left: 360 } }),

      subheading('Sampling Technique:'),
      new Paragraph({ children: [n('Non-probability consecutive sampling')], spacing: { after: 80 } }),

      subheading('Inclusion Criteria:'),
      new Paragraph({ children: [n('Males aged 18 to 70 years with short-segment urethral strictures (length <2 cm), planned to undergo internal urethrotomy.')], spacing: { after: 80 }, indent: { left: 360 } }),

      subheading('Exclusion Criteria:'),
      new Paragraph({
        children: [n('Patients with multiple or recurrent strictures, those with active urinary tract infections, complete urethral obliteration on urethroscopy, pan-anterior strictures, posterior stenosis, failed prior interventions, or lichen sclerosus changes.')],
        spacing: { after: 120 }, indent: { left: 360 }
      }),

      // DATA COLLECTION
      heading('Data Collection Procedure'),

      para([
        n('The study will be conducted after approval of the Institutional Ethics Committee and CPSP. A total of 60 patients presenting to the Department of Urology, fulfilling the inclusion criteria, will be enrolled in the study after informed consent. Baseline characteristics including age, obesity, diabetes mellitus, hypertension, smoking'),
        b(','),
        n(' and stricture '),
        b('aetiology'),
        n(' ('),
        b('e.g.,'),
        n(' iatrogenic, post-infectious, trauma) will be recorded. All patients will undergo confirmatory micturating cystourethrography (MCUG) from the radiology department'),
        b(','),
        n(' reported by a consultant radiologist, for location (bulbar, penile, membranous) and length (mm) of stricture. Patients will also undergo uroflowmetry'),
        b(','),
        n(' and peak urinary flow (Q'),
        b('max'),
        n(' \u2013 ml/sec) will be recorded. Patients will be randomly assigned to Group A (cold-knife) and Group B (holmium laser) through the lottery method using sealed opaque envelopes.'),
      ]),

      para([
        n('In the cold-knife urethrotomy procedure, a cystoscope is passed into the urethra'),
        b(','),
        n(' and a cold knife is used to incise the stricture at the 12 '),
        b("o'clock"),
        n(' position to widen the narrowed lumen and restore normal urine flow. In the holmium laser urethrotomy procedure, a laser fibre is passed through a cystoscope'),
        b(','),
        n(' and precise incisions are made in the stricture, usually at the 12 '),
        b("o'clock"),
        n(' position, to widen the lumen. Duration of procedure (minutes) will be recorded in both groups. '),
        b('A'),
        n(' post-procedure 20Fr Foley catheter will be placed in all patients. All patients will be discharged '),
        b('within'),
        n(' 24\u201348 hours after the procedure, once they are stable. They will be advised on catheter care, antibiotic course completion, avoidance of heavy exercise'),
        b(','),
        n(' and maintenance of good hydration. Post-procedure uroflowmetry will be performed after 30 days'),
        b(','),
        n(' and the assessor will not be aware of the procedure performed. All '),
        b('data'),
        n(' will be recorded on the proforma.'),
      ]),

      // DATA ANALYSIS
      heading('Data Analysis'),

      para([
        b('SPSS'),
        n(' version 23 will be used for data analysis. Normality of numerical data will be assessed through the Shapiro\u2013Wilk test. Age, symptom duration, stricture length, and peak urinary flow (Q'),
        b('max'),
        n(') will be presented as mean and standard deviation (or median and IQR if not normally distributed). Obesity, diabetes mellitus, hypertension, smoking'),
        b(','),
        n(' and stricture '),
        b('aetiology'),
        n(' will be presented as frequency and percentages. Post-operative Q'),
        b('max'),
        n(' between the groups will be compared '),
        b('using'),
        n(' an independent-sample '),
        b('t'),
        n('-test'),
        b(','),
        n(' and a p-value < 0.05 will be considered significant. Data will be stratified by age, obesity, diabetes mellitus, hypertension, smoking'),
        b(','),
        n(' and stricture '),
        b('aetiology'),
        n('. Post-stratification independent-sample '),
        b('t'),
        n('-test will be applied to compare Q'),
        b('max'),
        n(' between the treatment groups'),
        b(','),
        n(' and a p-value < 0.05 will be taken as significant.'),
      ]),

      // REFERENCES
      heading('References'),

      refPara([
        n('Akdemir, F., Okulu, E. and Kayigil, \u00d6. (2023) '),
        new TextRun({ text: "'Comparison of using cold knife and holmium laser in urethral stricture: long-term outcomes',", italics: false }),
        n(' '),
        new TextRun({ text: 'Journal of Urological Surgery,', italics: true }),
        n(' 10(4), p.315.'),
      ]),

      refPara([
        n('Ali Maged, W., Gamal, M.A. and Tawfeles, S.F. (2021) '),
        new TextRun({ text: "'Evaluation of holmium laser versus cold knife in optical internal urethrotomy for the management of urethral stricture',", italics: false }),
        n(' '),
        new TextRun({ text: 'QJM: An International Journal of Medicine,', italics: true }),
        n(' 114(Supplement 1), hcab110.014.'),
      ]),

      refPara([
        n('Bugeja, S., Payne, S.R., Eardley, I. and Mundy, A.R. (2021) '),
        new TextRun({ text: "'The standard for the management of male urethral strictures in the UK: a consensus document',", italics: false }),
        n(' '),
        new TextRun({ text: 'Journal of Clinical Urology,', italics: true }),
        n(' 14(1), pp.10\u201320.'),
      ]),

      refPara([
        n('Cebeci, O.\u00d6. (2022) '),
        new TextRun({ text: "'Is endourological intervention a suitable treatment option in the management of iatrogenic thermal ureteral injury? A contemporary case series',", italics: false }),
        n(' '),
        new TextRun({ text: 'BMC Urology,', italics: true }),
        n(' 22(1), p.137.'),
      ]),

      refPara([
        n('Chen, C., Qin, J., Wang, C., Huang, H., Li, H., Wen, Z. '),
        n('et al.'),
        n(' (2024) '),
        new TextRun({ text: "'Comparison of laser versus cold knife visual internal urethrotomy in the treatment of urethral stricture (stricture length < 2 cm): a systematic review and meta-analysis',", italics: false }),
        n(' '),
        new TextRun({ text: 'Medicine,', italics: true }),
        n(' 103(18), e37524.'),
      ]),

      refPara([
        n('Del Zingaro, M., Cochetti, G., Zucchi, A., Paladini, A., De Vermandois, J.A., Ciarletti, S. '),
        n('et al.'),
        n(' (2021) '),
        new TextRun({ text: "'Holmium:YAG laser for the treatment of genital and urethral warts: multicentre prospective evaluation of safety and efficacy',", italics: false }),
        n(' '),
        new TextRun({ text: 'Journal of Lasers in Medical Sciences,', italics: true }),
        n(' 12, e34.'),
      ]),

      refPara([
        n('Faizan, M., Mahboob, E., Samad, M.A., Fatima, L., Fatima, A., Iqbal, A. '),
        n('et al.'),
        n(' (2024) '),
        new TextRun({ text: "'Safety and efficacy of lasers compared to cold knife in direct visual internal urethrotomy: a systematic review and meta-analysis',", italics: false }),
        n(' '),
        new TextRun({ text: 'Lasers in Medical Science,', italics: true }),
        n(' 39(1), p.209.'),
      ]),

      refPara([
        n('Payne, S.R., Anderson, P., Spasojevi\u0107, N., Demilow, T.L., Teferi, G. and Dickerson, D. (2022) '),
        new TextRun({ text: "'Male urethral stricture disease: why management guidelines are challenging in low-income countries',", italics: false }),
        n(' '),
        new TextRun({ text: 'BJU International,', italics: true }),
        n(' 130(2), pp.157\u2013165.'),
      ]),

      refPara([
        n('Shaikh, M.I., Memon, W.A., Kumar, R., Malik, Z., Raza, A. and Khurshid, S. (2023) '),
        new TextRun({ text: "'To compare the mean peak flow rate of holmium laser versus cold knife among patients undergoing direct visual internal urethrotomy',", italics: false }),
        n(' '),
        new TextRun({ text: 'Pakistan Journal of Medical and Health Sciences,', italics: true }),
        n(' 17(6), pp.535\u2013537.'),
      ]),

      refPara([
        n('Srilakshmi, N. and Hegre, P.S. (2022) '),
        new TextRun({ text: "'Prospective comparative study of visual internal urethrotomy and visual internal urethrotomy with intralesional triamcinolone and mitomycin C in treatment of stricture urethra',", italics: false }),
        n(' '),
        new TextRun({ text: 'European Journal of Molecular and Clinical Medicine,', italics: true }),
        n(' 9(1), pp.198\u2013205.'),
      ]),

      // PROFORMA SECTION
      heading('Proforma'),

      new Paragraph({
        children: [new TextRun({ text: 'Comparison of Mean Peak Flow Rate in Holmium Laser Versus Cold Knife Treatment in Patients with Urethral Strictures', bold: true, size: 24 })],
        spacing: { after: 160 },
        alignment: AlignmentType.CENTER,
      }),

      new Paragraph({ children: [new TextRun({ text: 'GROUP A (Cold Knife)                                    GROUP B (Holmium Laser)', bold: true, size: 24 })], spacing: { after: 160 }, alignment: AlignmentType.CENTER }),

      ...[
        'Case No. ____________________  Registration No. ____________________',
        'Name: ____________________  Age (years): ____________________',
        'Symptom Duration (weeks): ____________________',
        'Obesity:  Yes / No',
        'Diabetes Mellitus:  Yes / No',
        'Hypertension:  Yes / No',
        'Smoking:  Yes / No',
        'Stricture Aetiology:  Iatrogenic / Post-infectious / Trauma',
        'Stricture Location:  Bulbar / Penile / Membranous',
        'Stricture Length (mm): ____________________',
        'Peak Urinary Flow (Qmax) (ml/sec) at Baseline: ____________________',
        'Peak Urinary Flow (Qmax) (ml/sec) 30 Days Post-operatively: ____________________',
      ].map(text => new Paragraph({
        children: [new TextRun({ text, size: 24 })],
        spacing: { after: 100 },
      })),

    ]
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