E.V. KHAZOVA¹, M.I. MALKOVA^1,2, O.V. BULASHOVA¹, V.N. OSLOPOV¹

¹Kazan State Medical University of the Ministry of Health of the Russian Federation, Kazan

²Municipal Clinical Hospital №7, Kazan

 Contact:

Khazova E.V. ― PhD (medicine), Associate Professor of the Department of Propedeutics of Internal Diseases named after Prof. S.S. Zimnitskiy

Address: 49 Butlerov Str., Kazan, Russian Federation, 420012, e-mail: [email protected]

The article describes incidence and factors of parasystoly. Classical signs of parasystoly are described, as well as possible types of competitive pacemaking. Examples of ECG signs of parasystoly are given as a result of Holter monitoring (authors’ data). Ambiguous opinions are presented about the prognostic value of revealing parasystoly in patients with and without organic heart lesions. The data on the parasystoly influence on the prognosis and provoking of ventricular fibrillation in myocardiac infarction patients are still uncertain. Authors’ observation of a patient with rhythm disorder ― ventricular parasystoly ― is presented. A series of daily ECG monitoring (2016-2019) shows the dynamics of rhythm violations: increase of ventricular ectopic activity, transition of paroxysmal atrium fibrillations into constant form.

Key words: parasystoly, heart pace disorder, Holter monitoring of ECG.

(For citation: Khazova E.V., Malkova M.I., Bulashova O.V., Oslopov V.N. Difficulties in diagnostics of ventricular parasystoly in clinical practice. Practical medicine. 2020. Vol. 18, №1, P. 18-25 )

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