Sympathovagal imbalance in transsexual subjects

Autor: Alberto Rebora, Eugenia Resmini, Diego Ferone, Massimo Casu, V. Patrone, G. Murialdo, Francesco Minuto
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Popis: Context: Autonomic nervous system imbalance is related to cardiovascular risk. Heart rate variability (HRV) indexes are associated with age, race, and sex, but the role of sex hormones is still unknown. Objective: To evaluate sympathovagal balance (SB) in transsexuals. Patients: Eighteen transsexual subjects, 12 male-to-female (group 1) and 6 female-to-male (group 2), compared with 34 age-matched controls: 17 males (group 3) and 17 females (group 4). Autonomic testing of SB was performed by Power Spectral Analysis (PSA) of HRV in clinostatism (c) and orthostatism (o). PSA identifies power peaks: high frequency (HF) expresses vagal activity, while low frequency (LF) expresses sympathetic activity. Results: Group 1 showed lower LFc than groups 2, 3, and 4 (p
Databáze: OpenAIRE