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Lifetime Prevalence of Transient Loss of Consciousness in an Urban Russian Population.
Gudkova, S; Cherepanova, N; Duplyakov, D; Golovina, G; Khokhlunov, S; Surkova, E; Rotar, O; Konradi, A; Shlyakhto, E.
Afiliação
  • Gudkova S; Samara Regional Cardiology Dispensary, Samara, Russiam.
  • Cherepanova N; Samara Regional Cardiology Dispensary, Samara, Russiam.
  • Duplyakov D; Samara State Medical University, Samara, Russiam.
  • Golovina G; Samara Medical Clinical Centre, Togliatti, Russiam.
  • Khokhlunov S; Samara State Medical University, Samara, Russiam.
  • Surkova E; Samara State Medical University, Samara, Russiam.
  • Rotar O; Federal North-West Medical Research Centre, Saint-Petersburg, Russiam.
  • Konradi A; Federal North-West Medical Research Centre, Saint-Petersburg, Russiam.
  • Shlyakhto E; Federal North-West Medical Research Centre, Saint-Petersburg, Russiam.
Arq Bras Cardiol ; 106(5): 382-8, 2016 May.
Article em En, Pt | MEDLINE | ID: mdl-27096526
BACKGROUND: Most international studies on epidemiology of transient loss of consciousness (TLC) were performed many years ago. There are no data about the lifetime prevalence of TLC in Russia. OBJECTIVE: To identify the lifetime prevalence and presumed mechanisms of TLC in an urban Russian population. METHODS: 1796 individuals (540 males [30.1%] and 1256 females [69.9%]) aged 20 to 69 years (mean age 45.8 ± 11.9 years) were randomly selected and interviewed within the framework of multicentre randomised observational trial. RESULTS: The overall prevalence of TLC in the studied population was 23.3% (418/1796), with the highest proportion (28%) seen in 40-49 year age group. TLC was significantly more common in women than in men (27.5% vs 13.5%). The mean age of patients at the time of the first event was 16 (11; 23) years, with 333 (85%) individuals experiencing the first episode of TLC under 30 years. The average time after the first episode of TLC was 27 (12; 47) years. The following mechanisms of TLC were determined using the questionnaire: neurally-mediated syncope (56.5%), arrhythmogenic onset of syncope (6.0%), nonsyncopal origin of TLC (1.4%), single episode during lifetime (2.1%). Reasons for TLC remained unidentified in 34% cases. 27 persons (6.5%) reported a family history of sudden death, mainly patients with presumably arrhythmogenic origin (24%). CONCLUSION: Our findings suggest that the overall prevalence of TLC in individuals aged 20-69 years is high. The most common cause of TLC is neurally-mediated syncope. These data about the epidemiology can help to develop cost-effective management approaches to TLC.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Inconsciência / Doenças Cardiovasculares Tipo de estudo: Clinical_trials / Diagnostic_studies / Etiology_studies / Prevalence_studies / Prognostic_studies / Risk_factors_studies Limite: Adult / Aged / Female / Humans / Male / Middle aged País/Região como assunto: Asia / Europa Idioma: En / Pt Revista: Arq Bras Cardiol Ano de publicação: 2016 Tipo de documento: Article País de publicação: Brasil

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Inconsciência / Doenças Cardiovasculares Tipo de estudo: Clinical_trials / Diagnostic_studies / Etiology_studies / Prevalence_studies / Prognostic_studies / Risk_factors_studies Limite: Adult / Aged / Female / Humans / Male / Middle aged País/Região como assunto: Asia / Europa Idioma: En / Pt Revista: Arq Bras Cardiol Ano de publicação: 2016 Tipo de documento: Article País de publicação: Brasil