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Left atrial strain predicts improvement in left atrial functions of severe rheumatic mitral stenoses undergoing

Prabhat Sharma1, Salil Garg2, Susheel Kumar Malani3

  • 1Department of Cardiology, Command Hospital, Udhampur, Jammu and Kashmir, India.

Echocardiography (Mount Kisco, N.Y.)
|June 4, 2023
PubMed

Insights

Peak atrial longitudinal strain (PALS) is impaired in severe mitral stenosis (MS) but improves after percutaneous transvenous mitral commissurotomy (PTMC). PALS effectively measures left atrial function and may predict PTMC success in rheumatic heart disease.

Area of Science:

  • Cardiology
  • Echocardiography
  • Cardiac Physiology

Background:

  • Rheumatic heart disease (RHD) commonly affects the mitral valve in India.
  • Left atrial (LA) enlargement in RHD impacts its reservoir function.
  • Peak atrial longitudinal strain (PALS) quantifies LA longitudinal function.

Purpose of the Study:

  • To evaluate LA function using PALS in severe rheumatic mitral stenosis (MS) patients.
  • To assess PALS changes after successful percutaneous transvenous mitral commissurotomy (PTMC).
  • To determine PALS as a predictor of PTMC outcomes in MS.

Main Methods:

  • Study included 50 patients with severe rheumatic MS in sinus rhythm undergoing PTMC.
  • Exclusion criteria included atrial fibrillation (AF).
  • PALS was measured to assess LA function before and after PTMC.

Main Results:

  • PALS was significantly impaired in patients with severe symptomatic MS.
  • PALS demonstrated acute enhancement following successful PTMC (P < .001).

Conclusions:

  • PALS is a valuable indicator of left atrial function in MS.
  • PALS may predict the success of PTMC in rheumatic mitral valve disease.
Abstract

Keywords:
PTMCleft atriumpeak atrial longitudinal strainrheumatic MSsinus rhythm

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