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Related Concept Videos

Pneumothorax-II01:27

Pneumothorax-II

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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:
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Pulmonary Function Tests01:25

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Pulmonary Function Tests (PFTs)
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
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Diagnosing Pulmonary EmbolismDiagnosing pulmonary embolism (PE) involves clinical assessment and advanced imaging tests. The preferred diagnostic tool is the spiral (helical) CT scan or CT angiography (CTA), which uses intravenous contrast media to visualize the pulmonary vasculature and identify emboli.A ventilation-perfusion (V/Q) scan is an alternative for patients unable to receive contrast media. This scan includes both perfusion and ventilation scanning. Perfusion scanning involves...
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Related Experiment Video

Updated: Sep 29, 2025

The Left Pneumonectomy Combined with Monocrotaline or Sugen as a Model of Pulmonary Hypertension in Rats
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MAJOR PULMONARY SURGERY IN PATIENTS WITH COMPROMISED LUNG FUNCTION.

Rita Gonçalves Pereira1, Joana Branco2, Filipa Narciso Rocha3

  • 1Thoracic Surgery Unit of the Department of Cardiothoracic Surgery, Centro Hospitalar Lisboa Central; Department of General Surgery, Centro Hospitalar Barreiro-Montijo, Portugal.

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Major lung surgery is safe for high-risk patients identified by pulmonary function tests. These individuals, despite impaired lung function (FEV1 and/or DLCO ≤60%), experienced similar morbidity and mortality rates compared to those with normal function.

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Area of Science:

  • Thoracic Surgery
  • Pulmonary Medicine
  • Oncology

Background:

  • Pulmonary function tests (PFTs) are crucial for lung resection risk stratification.
  • High-risk patients identified by PFTs often forego major surgery for less curative treatments.

Purpose of the Study:

  • To assess postoperative outcomes of major lung surgery in patients deemed high-risk by PFTs.

Main Methods:

  • Retrospective review of 234 patients undergoing lobectomy, bilobectomy, or pneumonectomy over 3 years.
  • Patients divided into Group A (normal PFTs) and Group B (impaired FEV1 and/or DLCO ≤60%).

Main Results:

  • Group B (high-risk) had more smokers, COPD, advanced cancer stage, and underwent thoracotomy more often.
  • High-risk patients experienced longer hospital stays, chest drainage, and home oxygen needs.
  • No statistically significant differences in postoperative morbidity or mortality between groups.

Conclusions:

  • Selected high-risk patients can safely undergo major thoracic surgery.
  • Respiratory function tests alone should not preclude potentially curative surgical interventions.