Myocardial involvement during the early course of type 2 diabetes mellitus: usefulness of Myocardial Performance Index

Table 3 Myocardial Performance Index and Doppler time intervals.

Parameters	Diabetes mellitus	Diabetes mellitus with hypertension	Controls
LV MPI	0.49 ± 0.10*	0.49 ± 0.12**	0.39 ± 0.10
LV ICT (ms)	59 ± 22	60 ± 24	50 ± 11
LV IRT (ms)	78 ± 24^†	80 ± 33^†	62 ± 14
LV ET (ms)	281 ± 23	285 ± 25	295 ± 30
E-wave deceleration time (ms)	182 ± 51**	190 ± 59**	139 ± 16
E_pv (cm/s)	67 ± 9*	71 ± 11	76 ± 16
E_tvi (cm)	9 ± 2	9 ± 3	10 ± 2
A_pv (cm/s)	70 ± 13**	76 ± 14**	57 ± 13
A_tvi (cm)	6 ± 2	7 ± 2^†	5 ± 2
E_pv/A_pv	1.0 ± 0.2	1.0 ± 0.2**	1.4 ± 0.3
E_tvi/A_tvi	1.5 ± 0.4**	1.4 ± 0.5**	2.0 ± 0.6

*p < 0.02 diabetics vs controls, **p < 0.01 diabetics vs controls, ^†p < 0.05 diabetics vs controls.
LV, left ventricle; MPI, myocardial performance index; ICT, isovolumic relaxation time; IRT, isovolumic contraction time; ET, ejection time; E, early diastolic filling wave; A, atrial contraction wave; pv, peak velocity; tvi, time velocity integral.

ISSN: 1476-7120