Maiyadi, N., Faragallah, I., Rozza, A. (2019). Assessment of right ventricular outflow tract fractional shortening as a measure of right ventricular function in chronic heart failure patients. test, 74(2), 318-324. doi: 10.21608/ejhm.2019.23053
Nura Ibrahim Maiyadi; Ibraheem Faragallah; Ahmad Abdelhameed Rozza. "Assessment of right ventricular outflow tract fractional shortening as a measure of right ventricular function in chronic heart failure patients". test, 74, 2, 2019, 318-324. doi: 10.21608/ejhm.2019.23053
Maiyadi, N., Faragallah, I., Rozza, A. (2019). 'Assessment of right ventricular outflow tract fractional shortening as a measure of right ventricular function in chronic heart failure patients', test, 74(2), pp. 318-324. doi: 10.21608/ejhm.2019.23053
Maiyadi, N., Faragallah, I., Rozza, A. Assessment of right ventricular outflow tract fractional shortening as a measure of right ventricular function in chronic heart failure patients. test, 2019; 74(2): 318-324. doi: 10.21608/ejhm.2019.23053

Assessment of right ventricular outflow tract fractional shortening as a measure of right ventricular function in chronic heart failure patients

The Egyptian Journal of Hospital Medicine
Article 14, Volume 74, Issue 2, January 2019, Pages 318-324    PDF (447.81 K)
Document Type: Original Article
DOI: 10.21608/ejhm.2019.23053
Authors
Nura Ibrahim Maiyadi* 1, 2; Ibraheem Faragallah1; Ahmad Abdelhameed Rozza1
1Department of Cardiology, Faculty of Medicine, Al-Azhar University, Egypt
2Specialist Hospital Sokoto, Sokoto State, Nigeria
Abstract
Background: assessment of RV function is a major component of the management and prognostication of heart failure (HF) patients. Its complexity makes this task difficult and therefore not appropriately considered. Right ventricular outflow tract fraction (RVOT FS) can serve that purpose if done. The functional capacity of a HF patient must always be assessed and decision made on that basis.
Aim of the study: this study aimed to investigate the applicability of RVOT FS in assessment of RV function and also its relation to functional capacity.
Patients and methods: seventy-one (71) patients with heart failure with reduce ejection fraction (HFrEF) were studied prospectively and nineteen (19) control healthy individuals (normal ECG, normal left and right ventricular function and no cardiac risk factors). A 2D guided M-mode was taken in the parasternal short axis view to determine RVOT FS and a six-minute walk test (6MWT) was done to determine their functional capacity.
Results: there was a reduced RVOT FS reduced in the HFrEF group (p value =0.005), 6MWT D was reduced in the HFrEF group (p value <0.001), there was a positive correlation of RVOT FS with RVFAC (r=0.839, p value<0.001) TAPSE (r=0.830, p value<0.001), S’(r=0.830, p value<0.001) 6MWT D (r=0.953, p value<0.001) and a negative correlation with RIMP(r=-0.867, p value<0.001), RV FLS(r=-0.878, p value<0.001), SPAP(r=-0.633, p value<0.001). 6MWTD with RVFAC (r=0.851, p value<0.001) TAPSE (r=0.825, p value<0.001), S’ (r=0.837, p value<0.001), RVOT FS (r=0.953, p value<0.001) and a negative correlation with RIMP (r=-0.827, p value<0.001), RV FLS (r=-0.902, p value<0.001), SPAP (r=-0.621, p value<0.001). RVOT FS between HF subgroups significant (p value<0.001).
Conclusion: RVOT FS is a simple and reliable parameter that can be used in assessment of RV function and has very positive correlation with functional capacity assessed by 6MWT.
Keywords
right ventricular outflow tract; chronic heart failure; right ventricular function
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