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Related Concept Videos

Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

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Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: bronchoscopy and thoracoscopy.
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due...
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Related Experiment Video

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Laparoscopic Anatomical Liver Segment VII Resection with Liver Parenchymal Transection Following a Priority Approach
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Subsegmental resection preserves regional pulmonary function: A focus on thoracoscopy.

Hiroaki Kuroda1, Shozo Sakata1, Yusuke Takahashi1,2

  • 1Department of Thoracic Surgery, Aichi Cancer Center Hospital, Nagoya, Japan.

Thoracic Cancer
|February 15, 2021
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Segmentectomy preserves pulmonary function, even with extensive resections. Chronic inflammation is a key factor impacting postoperative lung function recovery after lung surgery.

Keywords:
forced expiratory volumeleft upper lobelobectomysegmentectomythoracoscopic surgery

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Area of Science:

  • Thoracic surgery
  • Pulmonary function testing
  • Medical imaging

Background:

  • Evaluating postoperative preserved pulmonary function (PPPF) and 3D volumetric changes after lung resections is crucial.
  • Understanding factors influencing pre/postoperative pulmonary function is essential for patient outcomes.

Purpose of the Study:

  • To assess regional postoperative preserved pulmonary function (PPPF) and 3D volumetric changes based on the number of resected subsegments.
  • To identify factors affecting pre/postoperative pulmonary function after lung resections.

Main Methods:

  • Inclusion of patients who underwent thoracoscopic lobectomy (n=73) and segmentectomy (n=87).
  • Classification of patients based on the number of resected subsegments (1-10).
  • Utilizing percentage of pre/postoperative forced expiratory volume in 1 second (FEV1) and 3D CT volumetry for analysis.

Main Results:

  • Significant differences in FEV1 were observed between groups with 4-7 and 5-10 resected subsegments, but not between 1-4.
  • Significant volumetric changes were noted in the left lower lobe correlating with the number of resected subsegments.
  • Chronic inflammation was identified as a significant factor for decreased pulmonary function recovery.

Conclusions:

  • Segmentectomy is a viable and beneficial procedure for preserving pulmonary function.
  • Resections involving up to 5-7 subsegments can maintain pulmonary function effectively.
  • Chronic inflammation is a confirmed risk factor for reduced postoperative preserved pulmonary function.