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Titolo:
Anatomical and functional characteristics of carotid sinus stimulation in humans
Autore:
Querry, RG; Smith, SA; Stromstad, M; Ide, K; Secher, NH; Raven, PB;
Indirizzi:
Univ N Texas, Hlth Sci Ctr, Dept Integrat Physiol, Ft Worth, TX 76107 USA Univ N Texas Ft Worth TX USA 76107 tegrat Physiol, Ft Worth, TX 76107 USA Univ N Texas, Hlth Sci Ctr, Cardiovasc Res Inst, Ft Worth, TX 76107 USA Univ N Texas Ft Worth TX USA 76107 ovasc Res Inst, Ft Worth, TX 76107 USA Univ Copenhagen, Rigshosp, Dept Anesthesia, Copenhagen Muscle Res Ctr, DK-2100 Copenhagen, Denmark Univ Copenhagen Copenhagen Denmark DK-2100 , DK-2100 Copenhagen, Denmark
Titolo Testata:
AMERICAN JOURNAL OF PHYSIOLOGY-HEART AND CIRCULATORY PHYSIOLOGY
fascicolo: 5, volume: 280, anno: 2001,
pagine: H2390 - H2398
SICI:
0363-6135(200105)280:5<H2390:AAFCOC>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
DYNAMIC EXERCISE; ARTERIAL BAROREFLEX; HEART-RATE; PRESSURE; RESPONSES; MEN;
Keywords:
carotid baroreflex; chamber pressure; tissue pressure;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Raven, PB Univ N Texas, Hlth Sci Ctr, Dept Integrat Physiol, 3500 Camp Bowie Blvd, Ft Worth, TX 76107 USA Univ N Texas 3500 Camp Bowie Blvd Ft Worth TX USA 76107 6107 USA
Citazione:
R.G. Querry et al., "Anatomical and functional characteristics of carotid sinus stimulation in humans", AM J P-HEAR, 280(5), 2001, pp. H2390-H2398

Abstract

Transmission characteristics of pneumatic pressure to the carotid sinus were evaluated in 19 subjects at rest and during exercise. Either a percutaneous fluid-filled (n = 12) or balloon-tipped catheter (n = 7) was placed at the carotid bifurcation to record internal transmission of external neck pressure/neck suction (NP/NS). Sustained, 5-s pulses, and rapid ramping pulseprotocols (+40 to -80 Torr) were recorded. Transmission of pressure stimuli was less with the fluid-filled catheter compared with that of the balloon-tipped catheter (65% vs. 82% negative pressure, 83% vs. 89% positive pressure; P < 0.05). Anatomical location of the carotid sinus averaged 3.2 cm (left) and 3.6 cm (right) from the gonion of the mandible with a range of 0-7.5 cm. Transmission was not altered by exercise or Valsalva maneuver, but did vary depending on the position of the carotid sinus locus beneath the sealed chamber. These data indicate that transmission of external NP/NS was higher than previously recorded in humans, and anatomical variation of carotid sinus location and equipment design can affect transmission results.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/12/20 alle ore 12:51:21