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Related Concept Videos

Pneumothorax-I01:26

Pneumothorax-I

A pneumothorax is a condition where air builds up in the space between the lung and the chest wall, causing the lung to collapse. This condition arises when air enters the space between the parietal and visceral pleura, disrupting the negative pressure essential for lung inflation. This can lead to a partial or complete collapse of the lung.
Pneumothorax can be even further classified as spontaneous, traumatic, and tension pneumothorax.
Pneumothorax-II01:27

Pneumothorax-II

Pneumothorax is a medical condition defined by the buildup of air in the pleural space between the lungs and the chest wall. This accumulation of air can lead to partial or complete lung collapse, resulting in a range of clinical manifestations. Understanding the clinical presentation and effective management strategies is crucial for healthcare professionals in providing timely and appropriate care to individuals with pneumothorax.
Clinical Manifestations:
Pneumothorax II: Pathophysiology01:08

Pneumothorax II: Pathophysiology

Pneumothorax means the presence of air in the pleural space — the thin potential gap between the visceral and parietal pleura. This condition disrupts the normal pressure balance that keeps the lungs inflated, leading to partial or complete collapse of the affected lung.Normal physiologyUnder normal conditions, the pleural space maintains a slightly negative intrapleural pressure, which keeps the lungs expanded against the chest wall. This negative pressure creates a delicate balance between...
Intestinal Obstruction I: Introduction01:29

Intestinal Obstruction I: Introduction

Intestinal obstruction is a partial or complete blockage of the small or large intestine that disrupts the normal flow of intestinal contents through the lumen. This interruption impairs digestion, absorption, and fluid balance, and may lead to serious complications if not treated promptly.Mechanical ObstructionMechanical obstruction occurs when a physical blockage prevents intestinal contents from passing, arising from within the lumen or the bowel wall, or from external compression.Adhesions,...
Intestinal Obstruction II: Pathophysiology01:07

Intestinal Obstruction II: Pathophysiology

Intestinal obstruction triggers a series of physiological responses, starting with gas and fluid accumulation in the bowel segment proximal to the obstruction, leading to distension. This distended intestine compresses the diaphragm, hindering lung expansion and potentially leading to reduced respiratory effort, atelectasis, and pneumonia.To overcome the blockage, the gut intensifies contractions, causing colicky abdominal pain, nausea, and vomiting, which reduces fluid and food intake and...
Diverticular Disease of the Colon01:27

Diverticular Disease of the Colon

Diverticular disease involves the formation of diverticula—small sac-like outpouchings of the colonic wall—and their complications. It most commonly affects the sigmoid colon due to higher intraluminal pressure and structural vulnerability. It results from structural weakness and increased pressure in the colon, producing pseudodiverticula that may remain silent or progress to inflammation and serious complications.Structure of DiverticulaIn diverticulosis, these outpouchings are...

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Pneumatosis intestinalis: a review

Y Heng1, M D Schuffler, R C Haggitt

  • 1Department of Medicine, University of Washington, Seattle, USA.

The American Journal of Gastroenterology
|October 1, 1995
PubMed
Summary

Pneumatosis intestinalis (PI) is a sign of gas in the bowel wall, not a disease itself. Recognizing PI and differentiating benign cases from life-threatening ones is crucial for proper patient management.

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Area of Science:

  • Gastroenterology
  • Radiology
  • Internal Medicine

Background:

  • Pneumatosis intestinalis (PI) is characterized by gas within the bowel wall.
  • It is a sign, not a disease, requiring clinical context for interpretation.
  • PI presents in diverse clinical settings, from premature infants to adults with various comorbidities.

Purpose of the Study:

  • To highlight the importance of recognizing Pneumatosis intestinalis.
  • To differentiate benign PI from life-threatening forms.
  • To guide clinical management based on PI presentation.

Main Methods:

  • Review of clinical contexts associated with PI.
  • Emphasis on diagnostic recognition and differentiation.
  • Discussion of management strategies for benign and severe PI.

Main Results:

  • PI is associated with necrotizing enterocolitis, pulmonary disease, and various conditions like ischemic bowel and immunosuppression.
  • Key physician tasks include recognizing PI to avoid misdiagnosis (e.g., malignancy) and differentiating benign from surgical emergencies.
  • Benign PI may be managed with oxygen/antibiotics after excluding life-threatening causes.

Conclusions:

  • Accurate diagnosis and differentiation of PI are critical for appropriate patient care.
  • Management decisions for PI should weigh risks and benefits, especially given anecdotal treatment evidence.
  • Distinguishing between benign and critical PI ensures timely intervention when necessary.