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Titolo:
Diminished circadian variation in heart rate variability before surgery inpatients developing postoperative atrial fibrillation
Autore:
Jideus, L; Ericson, M; Stridsberg, M; Nilsson, L; Blomstrom, P; Blomstrorm-Lundqvist, C;
Indirizzi:
Univ Uppsala Hosp, Dept Surg Sci Thorac & Cardiovasc Surg, SE-75185 Uppsala, Sweden Univ Uppsala Hosp Uppsala Sweden SE-75185 Surg, SE-75185 Uppsala, Sweden Mid Sweden Univ, Dept Social Sci, Ostersund, Sweden Mid Sweden Univ Ostersund Sweden iv, Dept Social Sci, Ostersund, Sweden Univ Uppsala Hosp, Dept Med Sci, SE-75185 Uppsala, Sweden Univ Uppsala Hosp Uppsala Sweden SE-75185 Sci, SE-75185 Uppsala, Sweden
Titolo Testata:
SCANDINAVIAN CARDIOVASCULAR JOURNAL
fascicolo: 4, volume: 35, anno: 2001,
pagine: 238 - 244
SICI:
1401-7431(200109)35:4<238:DCVIHR>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
CORONARY-ARTERY BYPASS; PANCREATIC POLYPEPTIDE; SYMPATHETIC ACTIVATION; FREQUENCY-DOMAIN; PLASMA; OPERATIONS; MECHANISM;
Keywords:
atrial fibrillation; autonomic nervous system; catecholamines; coronary artery bypass surgery; heart rate variability; neuropeptides;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Jideus, L Univ Uppsala Hosp, Dept Thorac & Cardiovasc Surg, SE-75185 Uppsala, Sweden Univ Uppsala Hosp Uppsala Sweden SE-75185 5185 Uppsala, Sweden
Citazione:
L. Jideus et al., "Diminished circadian variation in heart rate variability before surgery inpatients developing postoperative atrial fibrillation", SC CARDIOVA, 35(4), 2001, pp. 238-244

Abstract

Objective - To evaluate the role of the autonomic nervous system for the development of atrial fibrillation (AF) after coronary artery bypass Surgery. Design - Eighty patients without a previous history of AF were included. The sympathetic and parasympathetic activity were evaluated by the analysis of heart rate variability (HRV) in the frequency domain from 24-h Holter recordings and by measuring neuropeptides (neuropeptide Y, chromogranin A, chromogranin B, and pancreatic polypeptide (PP)) and catecholamines, obtainedpre- and postoperatively. Results - Preoperatively, patients (36.3%) developing AF postoperatively showed a statistically significant less circadian variation in the HRV variables, the hi gh-f requency (HF) component (p = 0.013) and the low-frequency(LF)/HF ratio (p = 0.007), than patients remaining in sinus rhythm. The HFcomponent and PP, both reflecting parasympathetic activity, and all other variables in the frequency domain, decreased significantly after surgery inboth patient groups (p < 0.0001). Although catecholamines increased significantly postoperatively in both patient groups, neither catecholamines nor neuropeptides expressing sympathetic activity, differed between the two g PP groups. PP was, however, significantly higher in patients with postoperative AF than in those with sinus rhythm postoperatively on day 1. Conclusion - The diminished circadian variation in HRV before surgery and the indirect signs of a higher parasympathetic activity in patients developing postoperative AF compared with patients remaining in sinus rhythm, may indicate a propensity for AF.

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Documento generato il 18/01/20 alle ore 21:33:55