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Table 2 Study results

From: A CMR study of the effects of tissue edema and necrosis on left ventricular dyssynchrony in acute myocardial infarction: implications for cardiac resynchronization therapy

 

Baseline (n=22)

Follow-up (n=22)

P-value

Days after AMI

7.5±4.1

120.8±20.6

-

Heart rate (bpm)

76±18

68±6

0.006

LVEDD [mm]

51.0±7.7

54.9±7.6

0.0005

LVEDV [ml]

156.8±50.5

177.9±66.4

0.01

LVESV [ml]

96.7±39.2

113.0±50.8

0.005

LVEF [%]

40.5±8.2

38.5±8.6

Ns

LV mass

133±36

121±30

0.02

LVEDV/LVmass

1.19±0.32

1.45±0.36

0.0004

LV-scar (% LV mass)

29.6±9.9

23.7±10.0

0.002

% circumference Edema

57.5±14.0

-

-

% circumference Scar

30.6±12.6

-

-

csh (AVC) mean [%]

10.7±2.6

12.4±2.3

0.002

T max mean [ms]

345.7±34.5

390.8±35.4

<0.0001

T max SD [ms]

82.2±14.5

79.8±9.5

ns

CURE

0.91±0.05

0.94±0.03

0.004

QRS width (ms)

91.1±8.7

89.2±8.6

ns

  1. Patients measured immediately after acute anterior myocardial infarction (baseline, n=22) and patients measured again four months later (follow-up, n=22) different studied parameters are listed: Left ventricular end-diastolic diameter (LVEDD), left ventricular end-diastolic volume (LVEDV), left ventricular end-systolic volume (LVESV), left ventricular ejection fraction (LVEF), scar mass, mean circumferential shortening (csh) over all segments of the left ventricle at aortic valve closure (AVC), mean and SD of time to maximum csh (Tmax) over all segments, the circumferential uniformity ratio estimate (CURE). All values are indicated as mean ± SD.
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Journal of Cardiovascular Magnetic Resonance

ISSN: 1532-429X

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