Effect of food intake on myocardial performance index

Table 2 Description of hemodynamics, blood pressure, heart rate, MPI and and selected systolic and diastolic parameters before, 30 and 110 min after a standardized meal (n = 23)

Variable	Fasting	30 min after food intake	110 min after food intake	Percent change fasting versus 30 min (%)
MPI left ventricle	0.28 ± 0.06	0.20 ± 0.07^***	0.26 ± 0.06	−29
Heart rate (bpm)	60 ± 8	64 ± 10^**	60 ± 10	7
Systolic BP (mm hg)	103 ± 9	102 ± 10	102 ± 9	−1
Diastolic BP (mm hg)	66 ± 7	58 ± 7^**	63 ± 6 ^*	−12
SV (ml)	66 ± 13	79 ± 16^***	70 ± 13^**	20
CO (ml/min)	3948 ± 831	5058 ± 1087^***	4110 ± 756	28
E (cm/s)	81.6 ± 13.2	88.1 ± 14.5^**	81.0 ± 13.0	8
A (cm/s)	44.3 ± 8.4	51.0 ± 10.6^**	46.9 ± 7.7	15
E/A	1.9 ± 0.4	1.8 ± 0.4	1.8 ± 0.4	−5
DT (msec)	191 ± 21	162 ± 20^***	177 ± 17^*	−15
s’ (septal) (cm/s)	8.3 ± 0.9	9.5 ± 1.2^***	9.3 ± 1.1^***	14
s’ (lateral) (cm/s)	12.4 ± 2.2	13.8 ± 2.1^**	13.0 ± 2.3	11
e’ (septal) (cm/s)	12.6 ± 2.0	13.0 ± 2.2	13.3 ± 2.6	3
e’ (lateral) (cm/s)	19.7 ± 4.7	21.1 ± 4.0	19.2 ± 3.6	7
E/e’ (septal)	6.6 ± 1.3	6.9 ± 1.3	6.3 ± 1.4	5
E/e’ (lateral)	4.3 ± 0.9	4.3 ± 0.8	4.3 ± 0.9	0
E/e’ (average)	5.1 ± 0.9	5.2 ± 0.8	5.0 ± 0.9	2

Abbreviations: MPI Myocardial performance index, BP Blood pressure, SV left ventricular stroke volume, CO left ventricular cardiac output, E Peak of early diastolic mitral flow velocities, A late diastolic mitral flow velocities. DT Deceleration time of E-wave, s’ Pulsed Tissue Doppler imaging velocities: peak systolic diastolic velocities, e’ Pulsed Tissue Doppler imaging velocities: early diastolic velocities
^*Indicates significant difference (P < 0.05), compared to fasting values
^**Indicates significant difference (P < 0.01), compared to fasting values
^***Indicates significant difference (P < 0.001), compared to fasting values
Values are mean ± SD. Last column shows percent change for the different values, fasting versus 30 min after food intake

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