Assessment of right ventricular strain and strain rate in patients with severe mitral stenosis before and after balloon mitral valvuloplasty

Autor: Vipin Kumar, John Jose, Purendra K. Pati, V. Jacob Jose
Rok vydání: 2014
Předmět:
Adult
Balloon Valvuloplasty
Male
medicine.medical_specialty
RD1-811
Ventricular Dysfunction
Right
Mitral valvuloplasty
Strain (injury)
Balloon
Risk Assessment
Severity of Illness Index
Statistics
Nonparametric
Strain
Reference Values
Internal medicine
medicine
Diseases of the circulatory (Cardiovascular) system
Humans
Mitral Valve Stenosis
In patient
Postoperative Period
Prospective Studies
cardiovascular diseases
Observer Variation
Mitral stenosis
Balloon mitral valvuloplasty
business.industry
Strain rate
Stroke Volume
medicine.disease
Right ventricular function
Echocardiography
Doppler
Surgery
Stenosis
Treatment Outcome
RC666-701
Case-Control Studies
Preoperative Period
Rv function
Ventricular Function
Right
cardiovascular system
Cardiology
Original Article
Female
Cardiology and Cardiovascular Medicine
business
Follow-Up Studies
Zdroj: Indian Heart Journal, Vol 66, Iss 2, Pp 176-182 (2014)
ISSN: 0019-4832
DOI: 10.1016/j.ihj.2014.02.012
Popis: Objective: Right ventricular (RV) dysfunction in isolated severe mitral stenosis (MS) patients have prognostic significance. Study aim was to assess RV function in these subjects by strain and strain rate analysis, pre and post-balloon mitral valvuloplasty (BMV). Methods: Twenty five patients with isolated severe MS in sinus rhythm were assessed for RV function by two dimensional (2D) longitudinal strain & strain rate imaging before and after BMV and compared with that from twelve healthy age matched controls. Results: Patients with severe MS had significantly lower global RV systolic strain; segmental strain at basal, mid, apical septum and basal RV free wall; but similar strain at mid and apical RV free wall as compared to controls. The systolic strain rate was significantly lower only at mid septum. In addition, they had higher estimated pulmonary artery systolic pressure and RV myocardial performance index; lower tricuspid annular plane systolic excursion (TAPSE), peak systolic velocity at lateral tricuspid annulus, isovolumic acceleration and fractional area change (FAC). Global RV systolic strain as well as, segmental strain at basal, mid and apical septum showed a statistically significant rise after BMV. TAPSE and FAC also increased significantly post BMV. Conclusions: RV systolic function is impaired in patients with severe MS and can be assessed by global and segmental RV strain before the appearance of clinical signs of systemic venous congestion. Impaired global and segmental RV strain values in these patients are primarily due to increased after load and improve after BMV with reduction in RV afterload.
Databáze: OpenAIRE
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