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Related Concept Videos

Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

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Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...
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Respiratory Volumes and Capacities01:22

Respiratory Volumes and Capacities

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The respiratory system is responsible for the intake of oxygen and the expulsion of carbon dioxide from the body. Respiratory volumes describe the volume of air in the lungs at different phases of the respiratory cycle. Tidal volume is the air breathed in and out during normal, quiet breathing. Inspiratory reserve volume is the air that can be forcefully inspired beyond the tidal volume. In contrast, expiratory reserve volume refers to the air that can be expelled from the lungs after a normal...
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Respiratory Volumes01:15

Respiratory Volumes

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Respiratory volumes are crucial metrics, meticulously measured to quantify the air exchanged in and out of the lungs during various phases of the breathing cycle. These precise measurements are vital for assessing lung function, diagnosing respiratory conditions, and monitoring overall respiratory health. Each parameter provides specific insights into the mechanics of breathing and the functional capacity of the lungs.
Tidal Volume (TV) Tidal volume (TV) is the air inhaled or exhaled in a...
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Lung Capacity01:47

Lung Capacity

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The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.
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Pneumothorax-II01:27

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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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Related Experiment Video

Updated: Nov 9, 2025

Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation
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Quasilobar minimalist lung volume reduction surgery.

Eugenio Pompeo1, Ahmed Elkhouly2, Paola Rogliani3

  • 1Department of Thoracic Surgery, Tor Vergata University of Rome, Rome, Italy.

European Journal of Cardio-Thoracic Surgery : Official Journal of the European Association for Cardio-Thoracic Surgery
|April 16, 2021
PubMed
Summary

The quasilobar minimalist (QLM) lung volume reduction (LVR) surgery offers a safer, less costly alternative for emphysema patients. QLM-LVR demonstrates improved perioperative outcomes and sustained clinical benefits at 24 months.

Keywords:
Lung volume reductionMinimalistNon-intubated anaesthesiaPulmonary emphysemaSpontaneous ventilationVideo-assisted thoracoscopic surgery

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Area of Science:

  • Thoracic Surgery
  • Pulmonary Medicine
  • Minimally Invasive Procedures

Background:

  • Severe emphysema significantly impacts lung function and quality of life.
  • Traditional lung volume reduction (LVR) surgery can be invasive with considerable risks.
  • Minimally invasive techniques are sought to improve patient outcomes and reduce treatment burden.

Purpose of the Study:

  • To evaluate the efficacy and cost-effectiveness of the quasilobar minimalist (QLM) thoracoscopic lung volume reduction (LVR) surgical method.
  • To compare QLM-LVR with conventional LVR techniques in terms of outcomes and costs.
  • To assess the safety and perioperative benefits of QLM-LVR.

Main Methods:

  • Forty patients with severe emphysema underwent QLM-LVR, utilizing intercostal block analgesia and single-incision thoracoscopic lobar plication.
  • Propensity score matching was employed to compare QLM-LVR with two control groups: non-awake resectional LVR and awake non-resectional LVR.
  • Three matched groups of 30 patients each were analyzed for outcomes.

Main Results:

  • QLM-LVR resulted in significantly lower visual pain scores, shorter hospital stays, and reduced overall costs compared to control groups.
  • The morbidity rate was lower in the QLM-LVR group than in the non-awake resectional LVR group.
  • While all groups showed improvement, QLM-LVR demonstrated significantly better improvements in residual volume and dyspnea index at 24 months.

Conclusions:

  • QLM-LVR is a safe and effective surgical option for severe emphysema, offering superior perioperative outcomes and lower costs.
  • The procedure provides comparable clinical benefits to other LVR methods at 12 months.
  • QLM-LVR shows enhanced long-term improvements in lung function and symptom relief at 24 months.