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Effect of closed mitral valvotomy on spirometric pulmonary function tests in mitral stenosis
P P Kadam1, S H Pantvaidya, S R Jagtap
1Department of Anaesthesiology, LTMM College, Sion, Mumbai.
Journal of Postgraduate Medicine
|April 1, 1997
Summary
Closed mitral valvotomy initially reduced pulmonary function in mitral stenosis patients. However, spirometric pulmonary functions significantly improved 8-12 months post-surgery, indicating reversibility.
Area of Science:
- Cardiology
- Pulmonary Medicine
- Surgical Outcomes
Background:
- Mitral stenosis significantly impairs pulmonary functions.
- Surgical intervention like closed mitral valvotomy aims to restore cardiac function.
Purpose of the Study:
- To evaluate the impact of closed mitral valvotomy on spirometric pulmonary functions in patients with mitral stenosis.
- To assess the temporal changes in pulmonary function post-surgery.
Main Methods:
- Spirometric pulmonary function tests were conducted on 25 mitral stenosis patients.
- Tests were performed pre-operatively and at two post-operative intervals: 4-6 weeks and 8-12 months.
Main Results:
- Pre-operative pulmonary function values were significantly reduced.
- A further reduction in Forced Vital Capacity (FVC) and Forced Expiratory Volume in one second (FEV1) was noted 4-6 weeks post-surgery.
- Pulmonary function parameters showed significant improvement 8-12 months after surgery, with no change in small airway obstruction (FEF25-75%).
Conclusions:
- Closed mitral valvotomy leads to a temporary decline in pulmonary function.
- Pulmonary functions demonstrate significant reversibility and improvement in the long term following mitral valvotomy.