279 patients who applied with the diagnosis of ischemic heart disease, unstable tension angina, and ventricular fibrillation were taken as the material of the scientific research in the emergency cardiology department of the Khorezm regional branch of the Republican Emergency Medical Research Center. Sudden coronary death is the most common death in people with chronic cardiovascular and respiratory diseases.

Sudden coronary death, ischemic heart disease, unstable angina pectoris, ventricular fibrillation, pulse, unstable angina, myocardial infarction in the first hours, previous myocardial infarction, chronic heart failure, cardiomegaly, Brugada syndrome

Disease history of the emergency cardiology department of the Khorezm regional branch of the Republican scientific center for emergency medical care

Internal diseases: medical-scientific edition/ A. Gadayev.-Tashkent: Muharrir publishing house, 2022 year 256 p.

Internal diseases: a textbook for cadets and students of institutions of higher education. education on special "Medicine".

Part 2 / Bova, Alexander Andreevich [and others]; ed. A. A. Bova. - Minsk New Knowledge, 2020. - 816 p.

Moiseev Valentin Sergeevich Editor: Moiseev Valentin Sergeevich, Martynov Anatoly Ivanovich, Mukhin Nikolai Alekseevich Publisher: GEOTAR-Media, 2019

Marshalko, O. V. Therapy: textbook: in 3 parts: [16+] / O. V. Marshalko, A. I. Karpovich. - 2nd - Minsk: RIPO, 2019. - Part 2. Cardiology. – 369 p.

Internal diseases: a textbook for medical schools: in 2 volumes / ed. S. I. Ryabov. - 5th ed., Rev. and additional - St. Petersburg: SpecLit, 2015. - Volume 1. - 785 p.

Marshalko, O. V. Therapy: textbook: in 3 parts: [16+] / O. V. Marshalko, A. I. Karpovich. - 2nd - Minsk: RIPO, 2019. - Part 1. Pulmonology. – 205 p.

Internal diseases in outpatient practice: a textbook for nursing staff / A. N. Smirnov, A. M. Granovskaya-Tsvetkova, E. V. Doskina [and others]; ed. A. N. Smirnova. - St. Petersburg: SpecLit, 2014. - 368 p.

Astvatsatryan, A. V. Acute myocardial ischemia and comorbidities : textbook: [16+] / A. V. Astvatsatryan. - Moscow ; Berlin: Direct-Media, 2019. - 419 p.

https://www.ziyouz.com/books/kollej_va_otm_darsliklari/tibbiyot/Ichki%20kasalliklar%20(Y.Arslonov,%20T.Nazarov).pdf

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