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Pneumothorax-I01:26

Pneumothorax-I

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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.
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Pneumonia I: Introduction01:30

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Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
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Esophageal perforations manifest in various clinical forms, influenced by factors such as the perforation's cause and location (cervical, intrathoracic, or intra-abdominal), the extent of contamination, and potential injury to adjacent mediastinal structures. The timing between the perforation occurrence and treatment initiation also affects the clinical presentation.
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Esophageal perforation is a severe medical condition characterized by a breach in the integrity of the esophageal wall. This breach can occur due to various factors such as trauma, medical procedures, or underlying diseases. When the esophageal wall is compromised, it allows food, fluids, and digestive juices into the chest cavity or adjacent structures, leading to potential complications and health risks.
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Postoperative pneumoperitoneum: is it normal or pathologic?

Brandon C Chapman1, Kelsey E McIntosh2, Edward L Jones1

  • 1Department of Surgery, University of Colorado at Denver, Aurora, Colorado.

The Journal of Surgical Research
|May 6, 2015
PubMed
Summary
This summary is machine-generated.

Postoperative pneumoperitoneum is common after abdominal surgery, detected on CT scans up to 3 weeks later. Most cases are benign, with few requiring intervention, indicating typically favorable outcomes.

Keywords:
Free airPneumoperitoneumPostoperative

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Area of Science:

  • Radiology
  • Abdominal Surgery
  • Postoperative Imaging

Background:

  • Pneumoperitoneum on computed tomography (CT) after abdominal surgery is frequently observed.
  • Its exact incidence, duration, and clinical importance remain subjects of ongoing discussion.

Purpose of the Study:

  • To investigate the incidence, duration, and clinical significance of pneumoperitoneum detected by CT within 30 days of abdominal surgery.
  • To determine factors associated with postoperative pneumoperitoneum and the need for intervention.

Main Methods:

  • Retrospective cohort study including 344 patients who underwent abdominal CT within 30 days of abdominal surgery.
  • Analysis of pneumoperitoneum incidence based on postoperative day intervals.
  • Correlation of pneumoperitoneum with patient demographics, surgical approach, and drain presence.

Main Results:

  • Pneumoperitoneum was detected in 39% of patients within the first week post-surgery, decreasing over time.
  • The presence of a drain was significantly associated with pneumoperitoneum (P = 0.014).
  • Only 6% of patients required intervention, primarily for anastomotic leak (50% of interventions).

Conclusions:

  • Postoperative pneumoperitoneum on CT scans can persist for up to three weeks in a significant percentage of patients.
  • The majority of postoperative pneumoperitoneum cases have benign clinical outcomes, with a low rate of necessary interventions.
  • Findings emphasize the typically non-critical nature of free air detected post-abdominal surgery.