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ȣ - 480359 123 |
| Increased the Ratio of Right to Left Ventricular End-Diastolic Dimension on Echocardiography Is Associated with the In-Hospital Development of Ventricular arrhythmia In Patients with Right Ventricular Myocardal Infarction |
| Department of Internal Medicine, Catholic University of Korea, Seoul Korea |
| Eun-Ju Cho, Chong-Jin Kim, Ho-Joong Youn, Hui-Kyung Jeon, Tai-Ho Rho, Jae-Hyung Kim, Kyu-Bo Choi, Soon-Jo Hong |
Backgrounds and Purposes:This study is to compare the right ventricular performances measured with transthoracic echocardiography(TTE) between the right venticular myocardial infarction(RVMI) patients with and without in-hospital complication. Methods:We retrospectively studied patients with a first inferior wall MI, of whom 35 patients(mean age, 57±12 years; 28 males) with RVMI assessed by ST-segment elevation in right precordial leads(V3R-V4R) involving obstruction of right coronary artery proximal to the RV branch as an infarct related artery. TTE parameters representative of RV performances were measured within 24 hours of admission. Results:In-hospital complications were described in table. TTE findings of RV end-diastolic dimension(RVEDd)(2.4±0.5 vs 2.1±0.3cm, p=0.03) and ratio of right to left EDd(RVEDd/LVEDd)(0.51±0.10 vs 0.43±0.08, p=0.01) were significantly increased in patients who suffered in-hospital non-sustained ventricular tachycardia. Conclusion:Increased RVEDd and increased RVEDd/LVEDd may be associated with development of in-hospital non-sustained ventricular tachycardia.
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In-hospital complication |
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Brady-
Arrhythmia(n=12, 34.3%) |
sinus pause(n=5, 14.3%)
Mobitz type II atrioventricualr block(AVB)(n=2,
5.7%)
Third degree AVB, (n=5, 14.3%) |
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Ventricular tachycardia (n=11,
31.4%) |
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Hypotension (n=17, 48.5%) |
Required volume loading(n=6, 17.1%)
Required inotropic agent(n=6, 17.1%)
Cardiogenic shock(n=5,
14.3%) |
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