Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
SMOKING IMPAIRS BAROREFLEX SENSITIVITY IN HUMANS
Autore:
MANCIA G; GROPPELLI A; DIRIENZO M; CASTIGLIONI P; PARATI G;
Indirizzi:
UNIV MILAN,OSPED S GERARDO,CATTEDRA MED INTERNA,VIA DONIZETTI MONZA ITALY OSPED SAN GERARDO,CATTEDRA MED INTERNA 1 MONZA ITALY OSPED SAN GERARDO,CTR FISIOL CLIN & IPERTENS MONZA ITALY UNIV MILAN I-20122 MILAN ITALY IST SCI OSPED S LUCA,IST AUXOL ITALIANO I-20149 MILAN ITALY FDN DON GNOCCHI,CTR BIOINGN,LAB RIC CARDIOVASC I-20148 MILAN ITALY OSPED MAGGIORE I-20122 MILAN ITALY
Titolo Testata:
American journal of physiology. Heart and circulatory physiology
fascicolo: 3, volume: 42, anno: 1997,
pagine: 1555 - 1560
SICI:
0363-6135(1997)42:3<1555:SIBSIH>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
BLOOD-PRESSURE VARIABILITY; HEART-RATE-VARIABILITY; CIGARETTE-SMOKING; UNANESTHETIZED CATS; SPECTRAL-ANALYSIS; PULSE-INTERVAL; ACTIVATION; REFLEX; FINGER;
Keywords:
HEART RATE VARIABILITY; ARTERIAL BAROREFLEX; SEQUENCE ANALYSIS; SPECTRAL ANALYSIS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
G. Mancia et al., "SMOKING IMPAIRS BAROREFLEX SENSITIVITY IN HUMANS", American journal of physiology. Heart and circulatory physiology, 42(3), 1997, pp. 1555-1560

Abstract

In 10 healthy smokers, finger blood pressure was recorded continuously for 1 h in a supine control condition and for 1 h while smoking fourcigarettes, one every 15 min. Smoking increased average systolic blood pressure (+19%, P < 0.01) and its variability and reduced pulse interval (reciprocal of heart rate, -22%, P < 0.01) and its variability. Baroreflex sensitivity, as assessed by the slope of spontaneous hypertension/bradycardia or hypotension/tachycardia sequences and by the alpha-coefficient (squared ratio between pulse interval and systolic bloodpressure spectral powers at 0.1 Hz) was significantly decreased (P < 0.01) during smoking, whereas there were no effects of smoking on the reflex changes in pulse interval induced by carotid baroreceptor stimulation through a neck suction device. Sham smoking by a drinking strawhad no effects an any of the above parameters. Thus, when assessed inthe absence of laboratory maneuvers in daily Life conditions, baroreflex sensitivity is markedly impaired by smoking. This impairment may contribute to the smoking-induced increase in blood pressure and heart rate as well as to the concomitant alterations in their variability.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 09:59:28