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August 1, 2000Journal of the American College of Cardiology398 citationsOpen Access

Surgical left atrial appendage ligation is frequently incomplete: a transesophageal echocardiographic study

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Why the study?

What is the incidence of incomplete surgical left atrial appendage ligation during mitral valve surgery?

Population

50 patients who underwent mitral valve surgery and ligation of the left atrial appendage (LAA)

Design

Cohort

Follow-up

immediately postoperative to 13 years after surgery

Key result

Surgical left atrial appendage ligation during mitral valve surgery was found to be incomplete in 36% (18 of 50) of patients assessed by transesophageal echocardiography.

Authors

EKEdward S. KatzTTTheofanis TsiamtsiourisRARobert M. Applebaum

Discussion

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Overview

May warrant caution assuming surgical LAA closure success without imaging; leaves open optimal techniques and surveillance in mitral valve surgery.

Study Design

Type

Observational (n=50)

Structured PICO

What is the incidence of incomplete surgical left atrial appendage ligation during mitral valve surgery?

P
Population
50 patients who underwent mitral valve surgery and ligation of the left atrial appendage, evaluated by transesophageal echocardiography up to 13 years postoperatively.
E
Exposure
Surgical ligation of the left atrial appendage during mitral valve surgery
O
Outcome
Incidence of incomplete ligation of the LAA detected by transesophageal Doppler echocardiographysurrogate

Surgical LAA ligation during mitral valve surgery is frequently incomplete (36%), which may create a milieu for stagnant blood flow and potential embolic events.

Limitations

  • The power to detect a significant difference in left atrial size was only 64%
  • Power to detect a significant difference in left atrial size was only 64%

Cite This Study

Katz et al. (2000) conducted an observational in Mitral valve surgery and ligation of the left atrial appendage (n=50). Surgical left atrial appendage ligation was evaluated on Incidence of incomplete ligation of the left atrial appendage. Surgical left atrial appendage ligation during mitral valve surgery was found to be incomplete in 36% (18 of 50) of patients assessed by transesophageal echocardiography.

synapsesocial.com/papers/6aa273e281c14275e12408c4https://doi.org/10.1016/s0735-1097(00)00765-8
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