The effect of significant weight loss after bariatric surgery on echocardiographic indices: an observational study focusing on left ventricular deformation by 2D speckle echocardiography and right ventricular size

The Egyptian Heart Journal

Table 3 Percentage of abnormal RV size* in different echocardiographic planes before surgery, three months, and six months after the bariatric surgery

Right ventricular size	Abnormal* (%)	Normal (%)	PV
RVOT PLAX^a, baseline	91.2	8.8	0.121
RVOT PLAX, 3 months	82.4	17.6
RVOT PLAX, 6 months	76.5	23.5
Basal RVD^b, baseline	0	100	1.000
Basal RVD, 3 months	0	100
Basal RVD, 6 months	0	100
Mid-RVD, baseline	20.6	79.4	0.565
Mid-RVD, 3 months	14.7	85.3
Mid-RVD, 6 months	14.7	85.3
Long RVD, baseline	32.4	67.6	0.178
Long RVD, 3 months	23.5	76.5
Long RVD, 6 months	17.6	82.4

^aRVOT PLAX: right ventricular outflow tract diameter in parasternal view; ^bRVD: right ventricular diameter
*RV size was considered abnormal based on the values provided in the latest “chamber quantification guideline” [17]. RV basal diameter > 41 mm, RV mid-diameter > 35 mm, RV longitudinal diameter > 83 mm, and proximal RVOT PLAX diameter > 30 mm are considered abnormal