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[/quote]quote author=lekki1444 post=96896894]
3.2. Poor R-wave progression and infarct size
Among 53 patients with prior anterior MI, 33 patients had PRWP, and the remaining 20 patients did not (Table 2). ECG and SPECT images in cases of the presence or absence of PRWP are shown in Fig. 1. Patients with PRWP had larger sum of defect score (17.5 ± 8.6 vs 7.6 ± 10.3, p < 0.001) and lower LVEF (46.1 ± 9.8% vs 55.2 ± 12.9%, p < 0.01) than those without. The sum of R-wave in lead V1 to V6 inversely correlated with the sum of defect score (r = − 0.56, p < 0.001), and positively correlated with left ventricular ejection fraction (r = 0.45, p < 0.001) (Fig. 2).

Poor R-wave progression and myocardial infarct size after anterior myocardial infarction in the coronary intervention era
Satoshi Kurisu,⁎ Toshitaka Iwasaki, Noriaki Watanabe, Hiroki Ikenaga, Takashi Shimonaga, Tadanao Higaki, Ken Ishibashi, Yoshihiro Dohi, Yukihiro Fukuda, and Yasuki Kihara
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Abstract
Background
Regeneration of R-wave or disappearance of Q-wave sometimes occurs after myocardial infarction (MI) especially in the coronary intervention era. We assessed the impact of poor R-wave progression (PRWP) or residual R-wave in precordial leads on myocardial infarct size in patients with prior anterior MI treated with coronary intervention.

Methods
Fifty-three patients with prior anterior MI and 20 age- and sex-matched patients without underwent electrocardiogram (ECG), myocardial perfusion single photon emission tomography (SPECT) and echocardiography. Poor R-wave progression (PRWP) was defined as RV3 ≤ 3 mm.

Results
R-wave was significantly lower in all precordial leads in patients with prior anterior MI than those without. Among 53 patients with prior anterior MI, 33 patients had PRWP, and the remaining 20 patients did not. Patients with PRWP had larger sum of defect score (17.5 ± 8.6 vs 7.6 ± 10.3, p < 0.001) and lower left ventricular ejection fraction (LVEF) (46.1 ± 9.8% vs 55.2 ± 12.9%, p < 0.01) than those without. The sum of R-wave in lead V1 to V6 inversely correlated with the sum of defect score (r = − 0.56, p < 0.001), and positively correlated with LVEF (r = 0.45, p < 0.001).

Conclusion
Our data suggested that residual R-wave during the follow-up period reflected myocardial infarct size and left ventricular systolic function well in patients with prior anterior MI treated with coronary intervention.

Keyword: Electrocardiogram, Defect score, Poor R progression

Lexusgs430:
56 - 84.....

MeeztaFabulouz:
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mubzynani:
Nigeria isn't working. Buhari must resign. He's a failure

mrkings84:
Me I know that the protests have not ended yet... We only went on a break. This government haven't seen anything yet

seanblaise:
Freedom of lawful association is enshrined in our constitution. This is now militocracy. The police belief that they can issue out orders and enforce it irrespective of the fact that they violate peoples constitutional rights.

Yankee101:
You better deal with the ailment than putting balm on the symptoms

Address injustice, poverty, inequality and sheer hunger

If not a coup, breakup, civil war or another more devastating endsars will happen

SoBright101:
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Beware Nigerians. This is the time to know and understand the true identity of those who cause tribalism on here, they are paid agents, they are neither from east or west. They have more than twenty monikers, they would create tribal related topics and make tribal comments with different monikers to cause chaos between southerners. Though, they have no conscience but you can try to educate them or better ignore them. They are easy to identify, use your head brothers.
They dominate this platform. They are evil and restless until their aim is achieved.

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