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Chapter-09 Electrocardiogram in Mitral Stenosis

BOOK TITLE: Percutaneous Mitral Valvotomy

Author
1. Nair Krishnakumar
2. Chemello Diego
3. Selvaraj Raja
ISBN
9789352701926
DOI
10.5005/jp/books/14152_10
Edition
2/e
Publishing Year
2018
Pages
8
Author Affiliations
1. Toronto General Hospital Toronto, Canada, University of Toronto, Toronto General Hospital, Canada
2. Toronto General Hospital, Canada, Universidade Federal de Santa Maria-RS, Brazil
3. JIPMER Puducherry, Tamil Nadu, India, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India, Jawaharlal Institute of Postgraduate, Medical Education and Research, Puducherry, India
Chapter keywords
Electrocardiogram, mitral stenosis, MS, pulmonary arterial hypertension, left atrial abnormality, right atrial abnormality, combined atrial abnormality

Abstract

This chapter describes electrocardiogram in mitral stenosis. The electrocardiograms of mitral stenosis are often so characteristic that the valve lesion may be diagnosed from these curves alone. Mitral stenosis (MS) was, in fact, the first disease to be diagnosed by echocardiography. Today, imaging is the mainstay of diagnosis and decisions on management. The major electrocardiographic changes seen in mitral stenosis are left atrial abnormality, right atrial abnormality, combined atrial abnormality, right ventricular hypertrophy, and atrial arrhythmias. Electrocardiographic criteria for left atrial enlargement have limited sensitivity but high specificity compared to echocardiographic criteria. Right atrial abnormality occurs in patients with pulmonary arterial hypertension, or tricuspid valve involvement. Combined atrial abnormality is indicated essentially by the presence of some of the features of both right atrial and left atrial abnormality.

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