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Related Concept Videos

Esophageal Varices-II: Clinical Features and Management01:28

Esophageal Varices-II: Clinical Features and Management

Esophageal varices often manifest as gastrointestinal bleeding episodes, presenting symptoms like hematemesis (vomiting of blood), hematochezia (passing fresh blood via the rectum), and melena (black, tarry stools). Other signs can include weight loss, anorexia, abdominal discomfort, jaundice, pruritus, altered mental status, and muscle cramps.
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol abuse, or...
Endoscopic Procedures I: Esophagogastroduodenoscopy01:29

Endoscopic Procedures I: Esophagogastroduodenoscopy

An Esophagogastroduodenoscopy (EGD) is a diagnostic procedure in which an endoscopist uses a flexible, lighted endoscope to visualize the upper gastrointestinal (GI) tract. The procedure includes visualizing the oropharynx, esophagus, stomach, and the first part of the small intestine, the duodenum.
During an EGD, the endoscope can be used to:
Endoscopic Procedures V: ERCP01:26

Endoscopic Procedures V: ERCP

Endoscopic Retrograde Cholangiopancreatography (ERCP) is a diagnostic procedure that combines endoscopy and fluoroscopy to diagnose and treat conditions related to the bile ducts, pancreatic ducts, and gallbladder. This procedure is beneficial for identifying and addressing blockages, gallstones, strictures, and tumors within the biliary or pancreatic systems. ERCP is both diagnostic and therapeutic, offering the ability to visualize and treat identified problems in one session.
Patient...
Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
Upper GI Series: Barium Swallow01:24

Upper GI Series: Barium Swallow

The Barium Swallow Study, or a Barium Esophagogram, is a diagnostic imaging method used to visualize the upper gastrointestinal (GI) tract, including the esophagus, stomach, and small intestine. It employs barium sulfate, a radiopaque contrast material, to provide clear images of the upper digestive system, helping to identify abnormalities, diseases, or structural issues.
Purpose and Procedure
Patients undergoing this procedure ingest a liquid containing barium sulfate with a chalky...

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Related Experiment Video

Updated: Jun 18, 2026

Underwater Endoscopic Injection Sclerotherapy for Gastroesophageal Varices
02:14

Underwater Endoscopic Injection Sclerotherapy for Gastroesophageal Varices

Published on: August 1, 2025

Endoscopy for upper gastrointestinal bleeding: is routine second-look necessary?

Kelvin K F Tsoi1, Philip W Y Chiu, Joseph J Y Sung

  • 1Department of Medicine and Therapeutics, Chinese University of Hong Kong, Hong Kong.

Nature Reviews. Gastroenterology & Hepatology
|December 1, 2009
PubMed
Summary
This summary is machine-generated.

Routine repeat endoscopy after peptic ulcer bleeding treatment is not recommended. While it can reduce rebleeding, it doesn't impact mortality or surgery rates, and high-dose PPIs may be a better alternative.

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Endoscopic Injection Sclerotherapy Assisted by Cyanoacrylate and Clips for Gastroesophageal Varices
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Area of Science:

  • Gastroenterology
  • Endoscopy
  • Gastrointestinal Bleeding

Background:

  • The efficacy of routine second-look endoscopy following endoscopic hemostasis for peptic ulcer bleeding remains debated.
  • Evaluating evidence from randomized clinical trials is crucial for informed clinical decision-making.

Approach:

  • This review systematically examined randomized clinical trials on second-look endoscopy after peptic ulcer bleeding treatment.
  • Studies were analyzed based on endoscopic hemostasis methods: endoscopic injection or thermal coagulation.
  • Key outcomes included recurrent bleeding, need for surgery, mortality, blood transfusions, and hospital stay duration.

Key Points:

  • Second-look endoscopy using a heater probe was associated with a reduced risk of recurrent bleeding.
  • However, this approach did not demonstrate a significant effect on overall mortality or the necessity for surgical intervention.
  • High-dose intravenous proton pump inhibitors (PPIs) may potentially eliminate the need for repeat endoscopy in certain patients.

Conclusions:

  • Routine second-look endoscopy following endoscopic hemostasis for peptic ulcer bleeding is not generally recommended.
  • While selected high-risk individuals might benefit, the overall evidence does not support its widespread application.
  • The advent of high-dose intravenous PPIs offers a promising alternative, potentially reducing the need for repeat endoscopic procedures.