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Related Concept Videos

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...
Inflammatory Bowel Disease I: Ulcerative Colitis01:27

Inflammatory Bowel Disease I: Ulcerative Colitis

Introduction
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Lower GI Series: Barium Enema01:23

Lower GI Series: Barium Enema

A Barium Enema, or a lower GI series, is a specialized radiographic examination designed to visualize the lower gastrointestinal tract, specifically the colon and rectum. This procedure is instrumental in diagnosing various conditions such as colorectal cancer, polyps, diverticulosis, and inflammatory bowel disease.
Procedure Details
The examination begins by inserting a lubricated rectal tube into the patient's rectum to administer a radiopaque barium solution. The barium flow is carefully...
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...
Peptic Ulcer Disease III: Clinical Manifestations and Complications01:25

Peptic Ulcer Disease III: Clinical Manifestations and Complications

Duodenal UlcersDuodenal ulcers are the most common form of peptic ulcer disease, presenting with chronic, intermittent epigastric pain. Pain typically appears 2–3 hours after meals, especially when the stomach is empty, often waking patients at night. It is characteristically relieved by food or antacids (“pain–food–relief”). Some patients remain asymptomatic until complications like bleeding or perforation emerge, particularly with NSAID or anticoagulant use.Gastric UlcersGastric ulcers share...

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Related Experiment Video

Updated: May 21, 2026

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
06:46

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

Published on: September 27, 2024

[Risk factors of delayed bleeding after colonoscopic polypectomy: case-control study].

Gyu Hwan Bae1, Jin Tae Jung, Joong Gu Kwon

  • 1Division of Gastroenterology, Department of Internal Medicine, Catholic University, Daegu College of Medicine, 33, Dooryugongwon-ro 17-gil, Nam-gu, Daegu 705-718, Korea.

The Korean Journal of Gastroenterology = Taehan Sohwagi Hakhoe Chi
|June 28, 2012
PubMed
Summary

Delayed bleeding after colonoscopic polypectomy is a serious complication. Larger polyp size, increased polyp number, and less experienced endoscopists are key risk factors for this adverse event.

Related Experiment Videos

Last Updated: May 21, 2026

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
06:46

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

Published on: September 27, 2024

Area of Science:

  • Gastroenterology
  • Endoscopy
  • Colorectal Cancer Prevention

Context:

  • Colonoscopic polypectomy is crucial for colorectal cancer prevention.
  • Delayed bleeding is a rare but significant complication post-polypectomy.
  • Identifying risk factors is essential for improving patient safety.

Purpose:

  • To identify independent risk factors for delayed bleeding after colonoscopic polypectomy.
  • To analyze the association between polyp characteristics, procedural factors, and post-polypectomy bleeding.

Summary:

  • A case-control study identified polyp size, number, and endoscopist experience as independent risk factors for delayed bleeding.
  • Each 1mm increase in polyp diameter raised bleeding risk by 11.6%.
  • Higher polyp counts and less experienced endoscopists significantly increased the likelihood of delayed bleeding.

Impact:

  • Findings guide clinical practice to mitigate bleeding risks during polypectomy.
  • Highlights the need for increased vigilance with larger polyps and less experienced endoscopists.
  • Contributes to safer colonoscopic polypectomy procedures and improved patient outcomes.