112 -11 (49) 2022 — A.L. Аlavi, S.R. Kenjaev — EFFECT OF PREHOSPITAL SYSTEMIC THROMBOLYSIS ON LEFT VENTRICULAR DIASTOLIC FUNCTION IN ST-SEGMENT ELEVATION ACUTE MYOCARDIAL INFARCTION

EFFECT OF PREHOSPITAL SYSTEMIC THROMBOLYSIS ON LEFT VENTRICULAR DIASTOLIC FUNCTION IN ST-SEGMENT ELEVATION ACUTE MYOCARDIAL INFARCTION

A.L. Аlavi, Bukhara branch of the Republican Scientific Center of Emergency Medical Care

S.R. Kenjaev Bukhara branch of the Republican Scientific Center of Emergency Medical Care Bukhara State Medical Institute

Resume

Objective: to study the effect of prehospital thrombolysis on left ventricular diastolic function in patients with acute ST-segment elevation coronary syndrome.

Material and methods: We examined cases of LV diastolic function in 108 STEMI patients aged 35 to 67 years. The average age was 44.2 ± 1.3 years. All 108 patients underwent echocardiography (1 day after myocardial revascularization and 3 months later. Patients were randomized into two groups: group 1 – 50 patients receiving standard therapy, and prehospital hospital TLT. Group 2 included 58 patients who underwent standard therapy and hospital TLT. Transmitral blood flow (TMBF) parameters were assessed using Doppler echocardiography to assess diastolic dysfunction of the left ventricular myocardium.

Results: according to the initial state of TMBF, the groups of patients did not differ significantly among themselves. The maximum speed of early LV filling (E) in patients of groups 1 and 2 was 58.0 ± 2.4 and 56.0 ± 2.6 cm /s, respectively. The integrated indicator of LV diastolic function – the E / A ratio – was 0.83 ± 0.02 and 0.79 ± 0.02, respectively. The integral of the rate of early LV filling (VTIE) was 9.8 ± 0.6 and 9.6 ± 0.5 cm, while no significant intergroup differences were found. The time of isovolumetric relaxation of the LV myocardium in the group of patients receiving prehospital thrombolysis and hospitalized patients was 100 ± 5.0 and 103 ± 5.6 ms, respectively (p> 0.05).

Conclusion: thus, changes in LV diastolic function indicators after prehospital trombolytic therapy associated with the presence of reversible myocardial dysfunction.The use of prehospital thrombolytic therapy leads to the development of reversible diastolic dysfunction in the area of ​​ischemic myocardial damage.

Key words: STEMI, left ventricular diastolic function, prehospital thrombolytic therapy.

First page

655

Last page

661

For citation: A.L. Аlavi, S.R. Kenjaev – EFFECT OF PREHOSPITAL SYSTEMIC THROMBOLYSIS ON LEFT VENTRICULAR DIASTOLIC FUNCTION IN ST-SEGMENT ELEVATION ACUTE MYOCARDIAL INFARCTION //New Day in Medicine 11(49)2022 655-661 https://clck.ru/32vgvA

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