# Portal Hypertension Surgery

> NEET-PG Surgery notes on portal hypertension: HVPG thresholds, variceal bleeding ladder, shunt surgery, TIPSS, EHPVO and NCPF in Indian practice.

- Canonical URL: https://prepelephant.com/topics/neet-pg/surgery/portal-hypertension-surgery
- Exam / course: NEET-PG · Subject: Surgery
- Publisher: PrepElephant (https://prepelephant.com) — Prepared and reviewed by the PrepElephant Academic Review Team
- First published: 2026-10-02
- Last updated: 2026-10-02
- How to cite: "Portal Hypertension Surgery", PrepElephant, https://prepelephant.com/topics/neet-pg/surgery/portal-hypertension-surgery

## Direct answer

Portal hypertension becomes a surgical problem when a gradient crosses thresholds: the hepatic venous pressure gradient is normal up to 5 mmHg, clinically significant above 10 mmHg, and varices form and bleed beyond about 12 mmHg. Acute variceal bleeding follows a fixed ladder — resuscitation, terlipressin or somatostatin, antibiotics and endoscopic band ligation — with tamponade as a bridge and TIPSS as rescue. Shunt surgery has largely given way to endoscopy and TIPSS in cirrhosis: the distal splenorenal (Warren) shunt preserves portal flow when surgery is chosen, while non-selective shunts decompress everything at the price of encephalopathy. In India, extrahepatic portal vein obstruction and non-cirrhotic portal fibrosis, with preserved liver function, still fill surgical wards and tolerate shunt surgery well.

## What you must remember

- **HVPG thresholds:** normal up to 5 mmHg; above 10 mmHg clinically significant; above 12 mmHg varices form and bleeding risk begins — quotable exam numbers.
- **Cause classification:** prehepatic (portal vein thrombosis, the basis of EHPVO), intrahepatic (cirrhosis; non-cirrhotic portal fibrosis in India) and posthepatic (Budd-Chiari syndrome, constrictive pericardium).
- **Acute bleed ladder:** airway and volume resuscitation with blood, terlipressin or somatostatin infusion, intravenous antibiotics such as ceftriaxone, then endoscopic band ligation within 12 hours.
- **Rescue options:** Sengstaken-Blakemore or Minnesota balloon tamponade for a maximum of about 24 hours as a bridge, and TIPSS for uncontrolled or early rebleeding.
- **Shunt surgery:** distal splenorenal (Warren) shunt is the elective choice when surgery is needed, being selective and encephalopathy-sparing; total portocaval and mesocaval shunts decompress at the price of encephalopathy and accelerating liver failure.
- **Devascularisation:** the Sugiura procedure (oesophagogastric devascularisation with oesophageal transection) suits patients in whom shunts are impossible — thrombosed veins, previous surgery, or children with EHPVO.
- **Child-Pugh gating:** Child C cirrhosis with refractory bleeding is a transplant conversation, not a shunt conversation.
- **Indian pattern:** EHPVO presents in children and young adults with variceal bleeds and normal liver function; NCPF affects adults, especially women, with preserved synthetic function — both tolerate portal-decompressive surgery well.

## Managing an acute variceal bleed step by step

A 52-year-old cirrhotic arrives having haematemised a litre. Two large-bore cannulae, restrictive transfusion to a haemoglobin around 7-8 g/dL, terlipressin and ceftriaxone start simultaneously in the emergency room, because bacterial infection and over-transfusion both worsen outcomes. Once stabilised, endoscopy within 12 hours bands the varices; a banding failure or early rebleed triggers balloon tamponade purely as a bridge while TIPSS is arranged. If he bleeds again after TIPSS or has Child C physiology with intractable ascites, transplant assessment dominates the plan. Contrast the child with EHPVO: repeated banding sessions over years, good synthetic function, growth retardation from chronic disease; here a distal splenorenal shunt or a meso-Rex bypass (restoring portal flow via the jugular vein to the left portal vein) is well tolerated and genuinely changes the child's future. The same operation in a Child C cirrhotic would be lethal — the physiology, not the anatomy, selects the surgery.

## How Indian practice differs

Two Indian realities deserve exam-ready framing. First, EHPVO is among the commonest causes of portal hypertension in Indian children, presenting with well-tolerated variceal bleeds, splenomegaly and hypersplenism but normal liver architecture and function; the treatment ladder begins with endoscopic eradication and moves to shunts — including the meso-Rex bypass where anatomy allows — with results far better than in cirrhosis. Second, non-cirrhotic portal fibrosis accounts for a distinctive share of adult portal hypertension in India, again with preserved hepatocellular function, long bleeding-free intervals and good surgical tolerance. Meanwhile, in cirrhotic portal hypertension, Indian tertiary centres have followed the global shift: endoscopic banding plus pharmacotherapy (propranolol or carvedilol for secondary prevention), TIPSS for rescue, and shunt surgery largely retired — except for the EHPVO and NCPF patients in whom it remains rational. Examiners frequently reward the candidate who distinguishes "operate on the well liver, band and shunt-selectively in the sick one".

## Frequently asked questions

### At what hepatic venous pressure gradient do varices bleed?

The gradient must exceed about 12 mmHg for varices to form and bleed, with values above 16 mmHg carrying higher bleeding risk.

### What is the first-line endoscopic treatment of acute variceal bleeding?

Endoscopic band ligation, performed within about 12 hours of presentation alongside vasoactive drugs and prophylactic antibiotics.

### Which shunt is preferred for elective surgical decompression?

The distal splenorenal (Warren) shunt, because it selectively decompresses gastro-oesophageal varices while preserving portal perfusion of the liver.

### Why does EHPVO tolerate surgery better than cirrhosis?

Extrahepatic portal vein obstruction occurs in patients with normal liver parenchyma and synthetic function, so decompression does not precipitate liver failure or encephalopathy.

### What is the role of TIPSS in variceal bleeding?

Rescue therapy: transjugular intrahepatic portosystemic shunt creation controls refractory acute bleeding and early rebleeding, at the cost of encephalopathy risk, especially in advanced cirrhosis.