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Effect of left atrial plication for the giant left atrium on left ventricular function
M Shigenobu1, M Takagaki, T Kohmoto
1Department of Cardiovascular Surgery, Okayama University Medical School, Japan.
Acta Medica Okayama
|June 1, 1992
Summary
Left atrial plication (LAP) improved cardiac function in patients with giant left atria and mitral valve stenosis. This surgical method offers significant benefits for left ventricular function, making it a recommended option.
Area of Science:
- Cardiology
- Cardiac Surgery
Background:
- Giant left atrium is associated with mitral valve stenosis.
- Severe clinical symptoms and reduced cardiac function are common in these patients.
Purpose of the Study:
- To investigate the effect of Left Atrial Plication (LAP) on left ventricular function.
- To compare LAP outcomes with non-LAP cases in patients with large left atria.
Main Methods:
- Kawazoe's method of LAP was performed on eight patients.
- Preoperative and postoperative left ventricular function parameters were analyzed.
- Data were compared to a control group (non-LAP) with similar left atrial dimensions.
Main Results:
- The LAP group showed significant improvements in NYHA class, cardiothoracic ratio, pulmonary arterial pressure, left ventricular end-diastolic pressure, left atrial dimension, stroke volume index, ejection fraction, and cardiac index.
- The non-LAP group showed significant improvements only in NYHA class and pulmonary arterial pressure.
- Left atrial size remained unchanged in the non-LAP group.
Conclusions:
- Left atrial plication significantly improves cardiac function in patients with giant left atria and mitral valve stenosis.
- LAP is a beneficial surgical option for improving left ventricular function in this patient cohort.