Psychophysiological evaluation of patients with transient consciousness loss of uncertain origin.

CONCLUSIONS: 58% of patients with history of TLoC were PsyP+. In PsyP+ patients, DSM at rest correlates with higher prob-ability of NTG-induced syncope, which occurs with 60% increment of low frequency and 530% increment of VLF power. Conversely, in patients with prevalent vagal modulation at rest and a decrease in VLF power after NTG, syncope did not occur. This supports interpretation of VLF power as an index of stress-induced sympathetic activity. PMID: 29297196 [PubMed - indexed for MEDLINE]
Source: Kardiologia Polska - Category: Cardiology Authors: Tags: Kardiol Pol Source Type: research