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Related Concept Videos

Pulmonary Function Tests01:25

Pulmonary Function Tests

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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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Robotic-assisted Left Pneumonectomy For Vanishing Lung Syndrome
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Systemic and regional pulmonary function after segmentectomy.

Hiroaki Nomori1, Yue Cong1, Hiroshi Sugimura1

  • 1Department of Thoracic Surgery, Kameda Medical Center, Chiba, Japan.

The Journal of Thoracic and Cardiovascular Surgery
|July 3, 2016
PubMed
Summary
This summary is machine-generated.

Segmentectomy reduces pulmonary function, with more segments resected leading to greater decline. Left upper division segmentectomy significantly impairs lung function, similar to lobectomy.

Keywords:
lung cancerpulmonary functionsegmentectomy

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Area of Science:

  • Thoracic Surgery
  • Pulmonary Medicine
  • Medical Imaging

Background:

  • Segmentectomy, a lung-sparing procedure, has varying impacts on postoperative pulmonary function.
  • The functional superiority of segmentectomy over lobectomy remains debated due to inconsistent outcomes.
  • Assessing regional and systemic pulmonary function is crucial for comparing these surgical approaches.

Purpose of the Study:

  • To compare the functional outcomes of segmentectomy versus lobectomy.
  • To evaluate the impact of the number of resected segments on pulmonary function.
  • To analyze the regional and systemic pulmonary function changes after different types of segmentectomy and lobectomy.

Main Methods:

  • Prospective study of 117 patients undergoing segmentectomy or left upper lobectomy.
  • Pulmonary function tests and lung perfusion SPECT were performed pre- and post-operatively.
  • Forced expiratory volume in 1-second (FEV1) was measured using SPECT-CT fusion imaging.

Main Results:

  • Pulmonary function preservation was highest in resections of <2 segments (97%), followed by ≥2 segments (90%), LUD segmentectomy (84%), and lobectomy (83%).
  • Significant differences in pulmonary function were observed between segmentectomy groups (P < .001-.03).
  • Left upper division (LUD) segmentectomy resulted in significantly lower actual/predicted FEV1 compared to other segmentectomy groups, indicating substantial lobar dysfunction.

Conclusions:

  • Pulmonary function decreases with an increasing number of resected lung segments.
  • Left upper division (LUD) segmentectomy leads to significant systemic and lobar functional decline, comparable to lobectomy.
  • The extent of resection and the impact on preserved lung regions are key determinants of functional outcomes.