ISSN 2412-4036 (print)
ISSN 2713-1823 (online)

Electrocardiograms of patients who survived after COVID-19

Saifutdinov R.G., Saifutdinov R.R., Galyautdinova A.A., Muginova L.K., Mukhametzyanova N.A., Akramzhanov A.T., Akhmetzyanova Z.I., Galiullina G.F., Gilmullina R.R., Dzyuina V.A., Murakaev T.R., Mukhametzyanova A.F., Sultanova E.R.

1) Kazan State Medical Academy – a branch of Russian Medical Academy of Continuous Professional Education of the Ministry of Healthcare of Russia; 2) City Clinical Hospital No. 12, Kazan; 3) City Clinical Hospital No. 18, Kazan
Abstract. Infection caused by SARS-CoV-2, seriously affects the cardiovascular system, which is manifested by changes in electrocardiogram (ECG).
The aim: to study the ECG of patients survived from COVID-19.
Material and methods. 352 patients with COVID-19 underwent ECG upon admission, during treatment in hospital and before discharge. Heart rate (HR), cardiac electrical axis position, cardiac rhythm, extrasystoles, bundle branch block, ST segment and T wave (ST) abnormalities, ischemic events, and presence of acute myocardial infarction were estimated.
Results. Patients with COVID-19 were mostly admitted to the hospital with a normal heart rate. Sinus tachycardia was more often detected in females upon discharge and in male patients upon admission; sinus bradycardia was more often detected upon discharge than upon admission. This tendency was typical for both female and male individuals. Supraventricular and ventricular extrasystoles were rare. Atrial fibrillation and atrial flutter were twice as common in male, and first-degree atrioventricular blocks were found in female patients. No patients had incomplete left bundle branch block (LBBBi). Complete left bundle branch block (LBBBc) upon admission and discharge was registered in 3 male individuals. LBBBc, LBBBi and left anterior superior fascicle block were observed equally often both at admission and at discharge. Ischemic myocardial abnormalities were rare. cST and T anomalies were equally often verified both at admission and at discharge, they were almost 3 times more in females. Acute myocardial infarction was not diagnosed in any patient either at admission or at discharge.
Conclusion. Changes in ECG pattern of patients survived from COVID-19 are slightly different from those in individuals without this pathology.

Keywords

SARS-CoV-2
COVID-19
surviving patients
electrocardiography

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About the Authors

Rafik G. Saifutdinov, MD, Dr. Sci. (Medicine), professor, head of the Department of hospital and outpatient therapy, Kazan State Medical Academy – a branch of Russian Medical Academy of Continuous Professional Education of the Ministry of Healthcare of Russia. Address: 420012, Kazan, 36 Butlerova St.
E-mail: rgsbancorp@mail.ru
ORCID: https://orcid.org/0000-0003-2839-100X. Scopus ID: 36928957500. eLibrary SPIN: 2339-9660
Rinat R. Saifutdinov, MD, PhD (Medicine), associate professor, associate professor of the Department of hospital and outpatient therapy, Kazan State Medical Academy – a branch of Russian Medical Academy of Continuous Professional Education of the Ministry of Healthcare of Russia, head of the Department of therapy, City Clinical Hospital No. 12 of Kazan. Address: 420012, Kazan, 36 Butlerova St.
E-mail: r_saifutdinov@mail.ru
eLibrary SPIN: 5725-0092
Alsu A. Galyautdinova, MD, doctor of the Functional Department, City clinical hospital No. 12 of Kazan. Address: 420036, Kazan, 7 Lechebnaya St.
E-mail: gaa270565@yandex.ru
Laysan K. Muginova, MD, doctor of the Functional Department, City clinical hospital No. 12 of Kazan. Address: 420036, Kazan, 7 Lechebnaya St.
E-mail: Muginovalkk@gmail.com
Nailya A. Mukhametzyanova, MD, PhD (Medicine), head of the Functional Department, City Clinical Hospital No. 18 of Kazan. Address: 420101, Kazan, 2 Kh. Mavlyutova St.
E-mail: Gb18ofdzav@mail.ru
Akmal T. Akramzhanov, clinical resident of the Department of hospital and outpatient therapy, Kazan State Medical Academy – a branch of Russian Medical Academy of Continuous Professional Education of the Ministry of Healthcare of Russia. Address: 420012, Kazan, 36 Butlerova St.
E-mail: akromjanov3@gmail.com
Zilya I. Akhmetzyanova, clinical resident of the Department of hospital and outpatient therapy, Kazan State Medical Academy – a branch of Russian Medical Academy of Continuous Professional Education of the Ministry of Healthcare of Russia. Address: 420012, Kazan, 36 Butlerova St.
E-mail: zilunchik9@gmail.com
Gulnara F. Galiullina, clinical resident of the Department of hospital and outpatient therapy, Kazan State Medical Academy – a branch of Russian Medical Academy of Continuous Professional Education of the Ministry of Healthcare of Russia. Address: 420012, Kazan, 36 Butlerova St.
E-mail: english-worker@mail.ru
Rania R. Gilmullina, clinical resident of the Department of hospital and outpatient therapy, Kazan State Medical Academy – a branch of Russian Medical Academy of Continuous Professional Education of the Ministry of Healthcare of Russia. Address: 420012, Kazan, 36 Butlerova St.
E-mail: kalinino10@gmail.com
Varvara A. Dzyuina, clinical resident of the Department of hospital and outpatient therapy, Kazan State Medical Academy – a branch of Russian Medical Academy of Continuous Professional Education of the Ministry of Healthcare of Russia. Address: 420012, Kazan, 36 Butlerova St.
E-mail: pestereva.varvara@mail.ru
Timur R. Murakaev, clinical resident of the Department of hospital and outpatient therapy, Kazan State Medical Academy – a branch of Russian Medical Academy of Continuous Professional Education of the Ministry of Healthcare of Russia. Address: 420012, Kazan, 36 Butlerova St.
E-mail: murakaevafarida@yandex.ru
Aigul F. Mukhametzyanova, clinical resident of the Department of hospital and outpatient therapy, Kazan State Medical Academy – a branch of Russian Medical Academy of Continuous Professional Education of the Ministry of Healthcare of Russia. Address: 420012, Kazan, 36 Butlerova St.
E-mail: lolkeks98@mail.ru
Elina R. Sultanova, clinical resident of the Department of hospital and outpatient therapy, Kazan State Medical Academy – a branch of Russian Medical Academy of Continuous Professional Education of the Ministry of Healthcare of Russia. Address: 420012, Kazan, 36 Butlerova St.
E-mail: Elli-su.sultanova@yandex.ru

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