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Related Concept Videos

Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

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Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
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Related Experiment Video

Updated: Apr 12, 2026

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
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Left atrial dissection.

Hiroyuki Tsukui1, Shizuko Iwasa, Kenji Yamazaki

  • 1Department of Cardiovascular Surgery, Tokyo Women's Medical University, 8-1 Kawada, Shinjuku, Tokyo, 162-8666, Japan, htsukui@wf7.so-net.ne.jp.

General Thoracic and Cardiovascular Surgery
|May 25, 2015
PubMed
Summary

Left atrial (LA) dissection, a rare condition, involves a gap in the left atrium. Diagnosis often uses transesophageal echocardiography, with treatment ranging from observation to surgical repair.

Area of Science:

  • Cardiovascular Surgery
  • Cardiac Imaging

Background:

  • Left atrial (LA) dissection is a rare and poorly understood complication.
  • It can arise from various conditions including mitral valve surgery, coronary artery disease, trauma, and spontaneous events.

Purpose of the Study:

  • To elucidate the characteristics, diagnostic modalities, and treatment options for left atrial dissection.

Main Methods:

  • Review of literature and case studies on LA dissection.
  • Emphasis on diagnostic accuracy using transesophageal echocardiography and multimodality imaging.
  • Analysis of treatment strategies including surgical repair and conservative management.

Main Results:

  • LA dissection is defined as a gap extending from the annular area to the atrial wall or septum.

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  • Transesophageal echocardiography is the primary diagnostic tool, often complemented by other imaging modalities.
  • Treatment decisions are guided by clinical presentation, with options including surgical intervention or close observation.

    • Conclusions:

    • Left atrial dissection requires a high index of suspicion due to its rarity.
    • Accurate diagnosis relies on advanced imaging techniques.
    • Treatment should be individualized based on the patient's clinical status and the extent of the dissection.