Structural and functional changes in maternal left ventricle during pregnancy: a three-dimensional speckle-tracking echocardiography study

Table 1 Clinical and hemodynamic data

Variable	Controls	Trimester 1	Trimester 2	Trimester 3	Postpartum
	-	(14.1 ± 1.6)wk	(25.5 ± 2.6)wk	(37.8 ± 2.4)wk	(7.8 ± 2.4)mo
Weight(kg)	58.3 ± 11.4	60.1 ± 9.2	68.2 ± 9.5*^†‡§	72.8 ± 7.0*^†	61.8.3 ± 13.4^‡
BSA(m²)	1.62 ± 0.13	1.64 ± 0.20	1.66 ± 0.11‡	1.74 ± 0.10*^†	1.65 ± 0.15^‡
Heart rate(bpm)	81.1 ± 14.3	82.6 ± 10.4	85.1 ± 17.2	90.1 ± 9.8*^†	80.3 ± 14.2^‡
SBP(mmHg)	104.2 ± 10.7	103.0 ± 6.7	102.9 ± 8.5	107.6 ± 9.6	110.2 ± 10.3
DBP(mmHg)	64.4 ± 8.0	64.3 ± 4.9	61.3 ± 6.8^‡§	67.2 ± 7.9	68.6 ± 6.0
MBP(mmHg)	79.3 ± 8.5	79.5 ± 5.0	76.5 ± 6.2^‡§	81.7 ± 7.7	83.3 ± 8.1
CI (l · min-1 · m-2)	2.98 ± 0.76	3.01 ± 0.52	3.59 ± 0.79*	4.06 ± 0.72*^†	3.36 ± 0.72^‡
SVI(ml/m²)	34.58 ± 6.23	34.69 ± 9.60	37.56 ± 8.52	39.03 ± 5.34*^†	36.56 ± 7.54

Data are given as mean ± SD; BSA indicates body surface area; SBP, systolic blood pressure; DBP, diastolic blood pressure; MBP, mean blood pressure; CI, cardiac index; SVI, stroke volume index.
*P < 0.05 vs. Controls; ^†P < 0.05 vs. Trimester 1; ^‡P < 0.05 vs. Trimester 3; ^§P < 0.05 vs. Postpartum.

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