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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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Pneumothorax-I01:26

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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.
Pneumothorax can be even further classified as spontaneous, traumatic, and tension pneumothorax.
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Pulmonary ventilation is a vital process that ensures the exchange of oxygen and carbon dioxide in the lungs. It refers to the movement of air into and out of the lungs, enabling the body to obtain oxygen and remove waste carbon dioxide. In this article, we will explore the intricacies of pulmonary ventilation, including its underlying principles, mechanisms, and the interplay of pressures within the respiratory system.
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In terms of human respiration, the act of expelling air, known as exhalation (or expiration), operates on the principle of pressure gradients. During expiration, the pressure within the lungs exceeds that of the surrounding atmosphere. Under normal conditions, quiet breathing involves passive exhalation and is free of muscular contractions. This is because the exhalation process is driven by the natural elastic recoil of the lungs and chest wall, both of which have an inherent tendency to...
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Muscles of the Thorax01:25

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The thorax muscles are central to the body's respiration and provide essential support and movement for the upper body. They are intricately designed to facilitate the complex breathing process while also contributing to the structural integrity and mobility of the chest and upper limbs.
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The lungs are nestled in a cavity, shielded by the pleura. The pleura, a form of serous membrane, wraps around each lung. This membrane arrangement consists of two layers: the visceral and parietal pleurae. The visceral pleura lines the surface of the lungIn contrast, the parietal pleura is the outer layer and contacts to the thoracic wall, the mediastinum, and the diaphragm. The hilum is the point of connection between the visceral and parietal layers. The space between the parietal and...
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Exercise-induced pneumomediastinum.

Tomoyuki Tobushi1, Kazuya Hosokawa2, Keita Matsumoto3

  • 1Department of Cardiovascular Medicine, Saiseikai Futsukaichi Hospital, 3-13-1 Yumachi, Chikushino-shi, 818-8516, Fukuoka, Japan. tobushi@cardiol.med.kyushu-u.ac.jp.

International Journal of Emergency Medicine
|December 2, 2015
PubMed
Summary

Spontaneous pneumomediastinum, a rare condition causing chest pain, can be diagnosed by listening for a specific heart sound. Prompt recognition is key for effective emergency department treatment.

Keywords:
Chest painEmergency medicineSpontaneous pneumomediastinumSports medicine

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Area of Science:

  • Pediatric Emergency Medicine
  • Thoracic Imaging
  • Cardiology

Background:

  • Sudden onset chest pain necessitates urgent diagnosis in emergency settings.
  • Differentiating serious conditions from benign causes is critical for patient outcomes.

Purpose of the Study:

  • To highlight the diagnostic features of spontaneous pneumomediastinum in a pediatric case.
  • To emphasize the importance of physical examination findings in diagnosing spontaneous pneumomediastinum.

Main Methods:

  • Case report of a 12-year-old boy presenting with chest pain and dyspnea.
  • Physical examination revealing a crunching, rasping sound synchronous with heartbeat (Hamman's sound).
  • Diagnostic imaging including chest radiography and computed tomography (CT) of the chest.

Main Results:

  • Chest X-ray showed lucent streaks and mediastinal pleura.
  • CT scan revealed extensive pneumomediastinum surrounding the heart.
  • Diagnosis of spontaneous pneumomediastinum was confirmed.

Conclusions:

  • Spontaneous pneumomediastinum is a crucial consideration in the differential diagnosis of chest pain.
  • Hamman's sound, a friction sound synchronous with the heartbeat, is a key diagnostic physical finding.
  • Early recognition through history and physical exam aids immediate diagnosis in emergency departments.