That's a solid lineup of high-yield surgical topics! Gastrointestinal surgery is a cornerstone of the NEET-PG and INI-CET exams, and these three areas—Peptic Ulcer Disease (PUD), Cholecystectomy, and Bowel Obstruction—are absolute essentials.

Let's start by looking at some key lessons to get your foundation solid.

Those lessons cover the basics, but let's dive into some high-yield specifics for each.

1. Peptic Ulcer Disease (PUD) Surgery

While medical management (PPIs and H. pylori eradication) is the first line, surgery is critical for complications like perforation, obstruction, or refractory bleeding.

• Perforation: The classic "board-like rigidity" on exam. The gold standard is the Graham Patch repair (using an omental patch).
• Elective Surgery: Procedures like Truncal Vagotomy with Drainage (Pyloroplasty) or Highly Selective Vagotomy are less common now but still show up in exams.

2. Cholecystectomy

Laparoscopic cholecystectomy is the "gold standard" for symptomatic gallstones.

• Critical View of Safety (CVS): This is the most important concept to prevent bile duct injury. You must identify the Cystic Duct and Cystic Artery clearly before clipping.
• Calot's Triangle: Bound by the cystic duct, common hepatic duct, and the inferior surface of the liver. The Cystic Artery is usually found here.

3. Bowel Obstruction

This is a surgical emergency that requires quick thinking.

• Small Bowel Obstruction (SBO): Most common cause is post-operative adhesions. Look for dilated loops and air-fluid levels on X-ray.
• Large Bowel Obstruction (LBO): Most common cause is Malignancy.
• Management: "Drip and Suck" (IV fluids and Nasogastric decompression) is the initial step, but surgery is needed if there are signs of strangulation (fever, tachycardia, localized tenderness).

To help you visualize the anatomy for cholecystectomy, let me find a diagram of Calot's Triangle for you.