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Related Concept Videos

Pneumothorax-II01:27

Pneumothorax-II

640
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:
640

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Related Experiment Video

Updated: Nov 28, 2025

Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
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Pulmonary arteriovenous malformation managed by VATS lobectomy.

I Hanke, L Maršík, V Chovanec

    Rozhledy V Chirurgii : Mesicnik Ceskoslovenske Chirurgicke Spolecnosti
    |November 27, 2020
    PubMed
    Summary

    Pulmonary arteriovenous malformations (PAVMs) are abnormal lung vessel connections causing low oxygen. Surgical resection or embolization are effective treatments for this rare condition, especially in hereditary hemorrhagic telangiectasia patients.

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    Area of Science:

    • Cardiology
    • Pulmonology
    • Vascular Surgery

    Background:

    • Pulmonary arteriovenous malformations (PAVMs) involve abnormal connections between pulmonary arteries and veins, bypassing capillaries and leading to deoxygenated blood in the left heart.
    • This condition often remains asymptomatic for extended periods, with common symptoms including exertional dyspnea, epistaxis, fatigue, and cyanosis.
    • A serious complication is paradoxical embolism to the brain, potentially causing stroke or brain abscess.

    Observation:

    • A case report details the diagnosis and treatment of a young patient with PAVM following a bicycle accident.
    • Comprehensive assessments revealed arteriovenous malformations with a significant 40% shunt in pulmonary circulation.
    • Angiographic procedures were deemed unsuitable due to the PAVM's type and extent, necessitating video-assisted thoracic resection.

    Findings:

    • PAVMs are rare and frequently associated with hereditary hemorrhagic telangiectasia (HHT).
    • Contrast echocardiography and contrast-enhanced CT scans are the preferred diagnostic methods.
    • Conservative or pharmacological treatments are generally ineffective for PAVMs.

    Implications:

    • Early diagnosis and management of PAVMs are crucial, particularly in individuals with HHT.
    • Embolization is the usual treatment, but extensive or diffuse PAVMs may require surgical resection.
    • PAVMs should be considered in patients presenting with HHT signs, especially oral manifestations.