Đánh giá chức năng thất phải bằng chỉ số Tei trên siêu âm Doppler tim ở bệnh nhân hẹp khí van hai lá

TCNCYH 68 (3) - 2010

9. Levy D, Garrison RJ, Sava^.^' DD ot al. 10. Verma A, Meris A, Skali H, et al. (2008).

(1990) . Prognosti c implication s of Prognostic implicatidns of left ventricular mass and

echocardiographically determined left ventricular geometry following myocardial infarction: the

mass in the Framingham Heart Study. New Engl J VALIANT (Valsartan in acute myocardial

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Cardiol Cardiovase Imaging. Sep; 1 (1 5): 592 - 4.

Summary

PROGNOSTIC IMPLICATIONS OF LEFT VENTRICULAR HYPERTROPHY FOLLOWING

ACUTE MYOCARDIAL INFARCTION

Objectives: To determine the progndstic impact of left ventricular hypertrophy on cardiovascular

events for patients with a first, uncomplicated acute myocardial infarction (AMI). Methods: 98 consecutive

patients had an echocardiographie examination at prediseharge. Left ventricular mass (LV mass) was

calculated by means of Devereux's formula and subsequently indexed by body surface area. Results: 45

patients had LV hypertrophy and 53 patients had normal LV mass. The two groups were homogeneous for

clinical and angiographic variables. During follow - up period, there were 20 cardiac events in patients

group with LV hypertrophy and only 6 events in the patients group without LV hypertrophy (RR = 4.17;

95%C1 = 1.63 - 11.31; p < 0.001). The patients with concentric LV hypertrophy showed a higher rate of

events than patients with eccentric LV hypertrophy (52% versus 20%, p < 0.05) and patients with normal

geometry and mass (52% vesus 1 7%, p < 0.01). Concentric LV hypertrophy, eccentric LV hypertrophy

carry the risks of cardiovascular events [RR: 4.34 (0.97 - 10.8) and 2.07 (0.92 - 8.76), respectively].

Conclusion: an increased LV mass (concentric and eccentric LV hypertrophy) resulted important markers

of an adverse outcome in patients with a first, uncomplicated myocardial infarction.

Keywords: left ventricular hypertrophy, acute myocardial infarction

DANH GIA CHLfC NANG THAT PHAI BANG CHI SO TEI TREN

SIEU AM DOPPLER TIM 6 BENH NHAN HEP KHIT VAN HAI LA

Nguyen Lan Vict, Nguyen Thj Bach Yen

Trddng Dai hoc Y hia Noi

Chi sd chdc nang ca tim (MPI) - cdn gcii la chi sd Tel (chi sd do tren sieu am Doppler tim: ty le gida long

Ihdi gian gian dong the tich va thdi gian co dong the tich chia cho thdi gian tdng mau) la mdt thdng sd cho phep

danh gia kha chinh xac chdc nang toan bo cua tam that (ca chdc nang tam thu va chdc nang tam trddng). Muc

tieu: dng dung chi sd Tei trong danh gia chdc nang toan bd that phai d benh nhan HHL kbit vii tim hieu mdi

Iddng quan gida chi sd Tei vdi cac thdng sd khac tren sieu am va tren thdng tim. Dd'i tugng va phuang phdp

nghien cdu: sieu am Doppler tim ddac thdc hien tren 30 ngddi binh thddng va 50 benh nhan HIIL kbit . Sd

dung chi sd Tei that phai (do tren phd sieu am Doppler qua van Ba la va van DMP) de danh gia chdc nang toan

bo that phai. Ket qua va Ke't luan: d benh nhan HHL kbit, chi sd Tei that phai cao han ro ret so vdi ngudi binh

thddng (0,47 ± 0,02 so vdi 0,19 ± 0,04, p = 0,007); Chi sd Tei that phai cd tddng quan chat che vdi ap ldc tam

thu that phai (r = 0,8 ; p < 0,001), vdi ap ldc tam thu, ap ldc tam trddng, ap ldc trung binh DMP (vdi r lan Idat la

0,61; 0,47; 0,46 va p < 0,001). Chi sd Tei tdang quan yeu vdi dien tich Id van hai la (r = - 0, 33; p = (),ni).

Tu khoa: hop hai la khi't (HHL), Chi so Toi that phai, chdc nang that phai

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