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🔴 Schwartz's Stomach Chapter - Oral Exam Master Guide

PART 1: IMPORTANT TOPICS (Schwartz Prakaram)

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PART 2: KEY CONCEPTS (Quick Revision)

A. PUD - Ulcer Types (Johnson Classification)

• Type I - Lesser curve, incisura angularis - LOW acid (most common gastric ulcer ~60%)
• Type II - Gastric body + duodenal ulcer - NORMAL/HIGH acid
• Type III - Prepyloric - NORMAL/HIGH acid (behaves like duodenal)
• Type IV - High lesser curve near GE junction - LOW acid
• Type V - NSAID-induced, anywhere

Exam tip: Type II & III → vagotomy add chesukuntaru surgery lo. Type I → resection alone sufficient.

B. H. pylori Treatment Regimens (Schwartz Table 26-10)

• Clarithromycin Triple = PPI BD + Clarithro 500mg BD + Amoxicillin 1g BD × 10-14 days
• Bismuth Quadruple (failure cases) = PPI BD + Bismuth + Tetracycline + Metronidazole
• Sequential = PPI + Amox (5-7d) → then PPI + Clarithro + Metro (5-7d)

C. Rockall Score (Bleeding Risk)

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PART 3: CLINICAL CASES WITH Q&A (Oral Exam Format)

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🔷 CASE 1 - Classic Perforated Duodenal Ulcer

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1. 2 large bore IV access, aggressive fluid resuscitation
2. IV PPI (omeprazole/pantoprazole)
3. IV antibiotics (broad spectrum)
4. NGT insertion, Foley catheter
5. Blood for CBC, BMP, coagulation, cross-match
6. Surgical consultation - emergent laparotomy/laparoscopy

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• Hemodynamically unstable patients
• Peritonitis > 24 hours old

• Patch closure + HSV (Highly Selective Vagotomy)
• OR Patch + Vagotomy + Drainage (V+D) acceptable

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🔷 CASE 2 - Bleeding Peptic Ulcer (Upper GI Bleed)

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1. CBC, coagulation, BMP, blood type & crossmatch
2. IV access × 2, fluid resuscitation, transfuse if Hb <7 (or <8 with cardiac disease)
3. IV PPI drip (high dose - reduces rebleeding)
4. Discontinue NSAIDs/aspirin
5. Urgent EGD (within 24h, within 12h if hemodynamically unstable)
6. Risk stratify: Rockall Score (pre and post endoscopy)

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• Massive hemorrhage unresponsive to initial endoscopic control
• Recurrent hemorrhage after 2 attempts at endoscopic control
• Hemodynamic instability, >6 units pRBC in 24h

• Suture ligation of bleeder (duodenal: open anterior duodenotomy, ligate gastroduodenal artery)
• Suture ligation + definitive ulcer operation (HSV or V+D)
• Gastric resection (for gastric ulcers - includes vagotomy + ulcer excision)

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🔷 CASE 3 - Gastric Outlet Obstruction

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1. EGD - confirm diagnosis, biopsy to exclude malignancy
2. CT scan - assess extent, rule out cancer
3. H. pylori testing
4. Electrolytes - correct hypokalemia and alkalosis
5. NG decompression

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• Acute/edematous obstruction (due to active ulcer): IV PPI + NG decompression + H. pylori eradication → may resolve
• Chronic/cicatricial obstruction: Surgical = Vagotomy + Gastroenterostomy or Vagotomy + Antrectomy (Billroth I or II)
• Endoscopic balloon dilation is an option but high recurrence rate

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🔷 CASE 4 - Gastric Cancer (Adenocarcinoma)

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1. CT chest/abdomen/pelvis (assess local, nodal, distant spread)
2. Endoscopic ultrasound (EUS) - best for T and N staging
3. PET scan - assess systemic metastases (not for signet ring/mucinous)
4. Diagnostic laparoscopy - rule out peritoneal metastases (occult in 20-30%)
5. HER2 IHC staining (for metastatic disease - trastuzumab eligibility)
6. CBC, LFTs, tumor markers (CEA, CA 19-9)

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• Virchow's node - left supraclavicular LN (Troisier's sign)
• Sister Mary Joseph nodule - periumbilical nodule (peritoneal mets)
• Blumer's shelf - pelvic drop metastasis (rectal exam)
• Krukenberg tumor - ovarian metastases
• Irish node - left axillary LN

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• Curative intent (Stage I-III): Radical gastrectomy with D2 lymphadenectomy
  • Distal tumors: Subtotal (distal) gastrectomy
  • Proximal tumors: Total gastrectomy + Roux-en-Y esophagojejunostomy
• Reconstruction: Roux-en-Y preferred (reduces bile reflux, anastomotic recurrence)
• Perioperative chemotherapy (FLOT regimen - current standard)
• Stage IV: Palliative - chemotherapy ± trastuzumab (HER2+)

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🔷 CASE 5 - Zollinger-Ellison Syndrome

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• Fasting serum gastrin > 1000 pg/mL = diagnostic
• If 100-1000: Secretin stimulation test (paradoxical rise >200 pg/mL = ZES)
• Locate tumor: CT/MRI, EUS, Somatostatin receptor scintigraphy (SRS/Octreotide scan)
• Check PTH, prolactin, calcium for MEN-1 (pancreas + pituitary + parathyroid)

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• High-dose PPI (control acid - omeprazole 60-80mg/day)
• Surgical resection of gastrinoma if localized and sporadic (not MEN-1)
• MEN-1 associated gastrinomas: Medical management preferred (usually multiple, small, not curable surgically)
• 60% of gastrinomas are in the "gastrinoma triangle" (cystic duct - duodenum - pancreatic head junction)

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🔷 CASE 6 - GIST (Gastrointestinal Stromal Tumor)

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• < 2cm, low mitotic rate: Consider surveillance or resection
• ≥ 2cm: Surgical resection (wide local excision with negative margins - no lymphadenectomy needed as GISTs rarely spread to LN)
• Neoadjuvant imatinib (Gleevec): For large/borderline resectable tumors → shrink before surgery
• Adjuvant imatinib: ≥ 3cm or high risk features, post-resection
• Metastatic: Imatinib first line

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🔷 CASE 7 - Stress Gastritis / Curling's/Cushing's Ulcer

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• Prevention is primary: All ICU patients → stress ulcer prophylaxis: IV PPI or H2 blocker (sucralfate alternative)
• Active bleeding: IV PPI, endoscopic hemostasis
• Curling's ulcer (burns): High gastric acid secretion → H2 blocker/PPI
• Cushing's ulcer (head injury): High gastric acid (vagal stimulation) → PPI + reduce ICP
• Surgery rarely needed (near-total gastrectomy as last resort)

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PART 4: HIGH-YIELD FACTS (Rapid Fire Answers)

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PART 5: EXAM STRATEGY

1. Initial impression lo - "This is [emergency/urgent/elective]... Most likely [diagnosis] based on [key findings]"
2. Workup adugite - ABCs first (resuscitate), then investigations
3. Management adugite - Conservative → Endoscopic → Surgical (escalation pattern)
4. Definitive management = SURGERY (what operation, why, technique)
5. Complications adugite - list pre-op, intra-op, post-op

Oka key rule: Gastric ulcer ante ALWAYS biopsy/exclude malignancy. Examiner ee point meeru miss chesthe definitely adugutadu.

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🔴 PUD Case - Full Journey (Admission → Procedure → What Next)

Scenario (Examiner Case Style):

45-year-old male, epigastric pain, hematemesis, melena. HR 110, BP 95/60. Admitted to hospital. EGD done - found bleeding duodenal ulcer. "Ippudu em chesthav?"

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STEP-BY-STEP ANSWER (Schwartz Prakaram)

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🔵 STEP 1: Admission lo (ER nunchi admit chesినప్పుడు)

1. 2 large bore IV access establish cheyyi (antecubital veins)
2. IV fluids - crystalloids (Normal saline / Lactated Ringer's)
3. Blood send cheyyi:
   • CBC, BMP (electrolytes, BUN, creatinine)
   • Coagulation (PT/INR, aPTT)
   • Type and Crossmatch (blood ready gaa vundali)
   • LFTs
4. IV PPI start cheyyi immediately (high-dose: Pantoprazole 80mg bolus → 8mg/hr infusion)
5. NGT - gastric lavage (bleeding extent assess cheyyadaniki)
6. Foley - urine output monitor
7. Transfuse - Hb < 7 g/dL ante pRBC (cardiac disease unte < 8 ante)
8. NSAIDs/aspirin bandh cheyyi
9. Surgical consult mandatory

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🔵 STEP 2: EGD (Endoscopy) - Procedure chesav

• Ulcer location, size
• Forrest Classification (bleeding risk stratify cheyyadaniki)

• Epinephrine injection (1:10,000) + Thermal coagulation (heater probe/bipolar) OR clipping
• Epinephrine alone insufficient - always combine

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🔵 STEP 3: Post-Endoscopy (Procedure chesina taruvata)

A. Continue IV PPI Infusion

• High-dose PPI for 72 hours post-endoscopy (Pantoprazole 8mg/hr infusion)
• After 72h → oral PPI switch
• Why? Clot dissolves at low pH - PPI gastric pH > 6 maintain chesi clot stabilize chestundi
• After discharge: Oral PPI lifelong (ulcer cause eliminate avvakunte)

B. H. pylori Testing and Treatment

• Biopsy sample endoscopy lo teesukunnav - H. pylori check cheyyi
• Positive ante → eradication therapy start:
  • Clarithromycin Triple (first line): PPI BD + Clarithromycin 500mg BD + Amoxicillin 1g BD × 14 days
• Eradication confirm cheyyi: Urea breath test or stool antigen 4 weeks after stopping PPI

C. NSAID/Aspirin Stop

• Patient NSAID use chestunnadu ante → stop or switch to selective COX-2 inhibitor + PPI

D. Admit Ward / ICU Decision

• High-risk patients (Rockall score ≥ 5, Forrest Ia/IIa): ICU/HDU admit
• Low-risk (Forrest IIc/III, stable vitals, young): Discharge possible in 24h

E. Diet

• Clear liquids start, advance to regular diet as tolerated
• NPO maintain initially if rebleeding risk high

F. Repeat Endoscopy?

• Routine second-look EGD → not recommended universally
• Only if: High-risk lesion (Forrest Ia/IIa), or clinical suspicion of rebleeding

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🔵 STEP 4: Patient Rebleeds! (Examiner's favourite twist)

"Patient admitted, endoscopy chesav, 24 hours taruvata again hematemesis. Ippudu em chesthav?"

1. Massive hemorrhage unresponsive to initial endoscopic control
2. Recurrent hemorrhage after 2 attempts at endoscopic control
3. Hemodynamic instability despite resuscitation

4. 6 units pRBC in 24 hours (or > 8 units total)

5. Continued slow bleeding requiring >3 units/day

• Anterior duodenotomy/gastrotomy → expose the ulcer
• Suture ligation of bleeding vessel (usually gastroduodenal artery - GDA - posterior DU)
• Options based on patient stability:

Gastric ulcer ante: Never leave without biopsy. If resecting → Vagotomy + Antrectomy.

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🔵 STEP 5: Discharge Planning

1. Oral PPI (omeprazole/pantoprazole) - at least 4-8 weeks (longer if H. pylori positive)
2. H. pylori eradication complete cheyyi + confirm
3. NSAIDs avoid cheyyi
4. Smoking and alcohol stop cheyyi
5. Follow-up EGD at 6-8 weeks:
   • Gastric ulcer: Mandatory follow-up EGD to confirm healing + biopsy (rule out malignancy)
   • Duodenal ulcer: Routine follow-up EGD generally not needed
6. Alarm symptoms return chesthe (weight loss, dysphagia, anemia) → immediate EGD

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🔑 One-Line Summary (Examiner ki Final Answer)

"Admit → Resuscitate → IV PPI → Urgent EGD → Endoscopic hemostasis (epi + thermal/clip) → Continue IV PPI 72h → H. pylori test and treat → If rebleed: repeat EGD → If 2 attempts fail: Surgery (suture ligation ± vagotomy) → Discharge on oral PPI + H. pylori eradication → Follow-up EGD (gastric ulcer mandatory)."

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