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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2000-10-18
pubmed:abstractText
Left stellate ganglion block (LSGB) results in acute sympathetic denervation of the left ventricular (LV) posterobasal wall. We investigated the effects of LSGB in chronically instrumented awake dogs before and after the induction of pacing-induced congestive heart failure. Twelve dogs were instrumented for measurement of global hemodynamics [LV pressure (LVP)], its first derivative (dP/dt), cardiac output (CO), and regional myocardial function (systolic posterobasal segment length shortening, mean velocity [SLmv]). Before the induction of heart failure (n = 12), LSGB did not affect CO [3.2+/-1.4 (control, mean +/- SD) vs. 3.3+/-1.6 L/min (LSGB, P = 0.45)] and SLmv (11.1+/-4.0 vs. 10.8+/-4.0 mm/s, P = 0.16), but slightly reduced LVP (130+/-12 vs. 125+/-14 mm Hg, P = 0.04), dP/dt(max) (3614+/-755 vs. 3259+/-644 mm Hg/s, P = 0.003) and dP/dt(min) (-3153+/-663 vs. -2970+/-725 mm Hg/s, P = 0.03). During heart failure (n = 8), global hemodynamics [CO (2.8+/-1.2 vs. 2.7+/-1.2 L/min, P = 0.04), LVP (119+/-6 vs. 112+/-9 mm Hg, P = 0.01), dP/dt(max) (1945+/-520 vs. 1824+/-554 mm Hg/s, P = 0.03) and dP/dt(min) (-2402+/-678 vs. -2243+/-683 mm Hg/s, P = 0.04)], as well as regional myocardial function, were significantly different after LSGB [SLmv] (8.0+/-3.8 vs. 6.9+/-3.4 mm/s, P = 0.02)]. In conclusion, even during heart failure, the hemodynamic changes after LSGB are small, confirming its broad margin of safety.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0003-2999
pubmed:author
pubmed:issnType
Print
pubmed:volume
91
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
787-92
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:11004027-Anesthetics, Local, pubmed-meshheading:11004027-Animals, pubmed-meshheading:11004027-Autonomic Nerve Block, pubmed-meshheading:11004027-Blood Pressure, pubmed-meshheading:11004027-Cardiac Output, pubmed-meshheading:11004027-Cardiac Pacing, Artificial, pubmed-meshheading:11004027-Consciousness, pubmed-meshheading:11004027-Diastole, pubmed-meshheading:11004027-Dogs, pubmed-meshheading:11004027-Female, pubmed-meshheading:11004027-Heart Failure, pubmed-meshheading:11004027-Heart Rate, pubmed-meshheading:11004027-Heart Ventricles, pubmed-meshheading:11004027-Lidocaine, pubmed-meshheading:11004027-Linear Models, pubmed-meshheading:11004027-Myocardial Contraction, pubmed-meshheading:11004027-Stellate Ganglion, pubmed-meshheading:11004027-Systole, pubmed-meshheading:11004027-Vascular Resistance, pubmed-meshheading:11004027-Ventricular Function, Left, pubmed-meshheading:11004027-Ventricular Pressure
pubmed:year
2000
pubmed:articleTitle
Left stellate ganglion block has only small effects on left ventricular function in awake dogs before and after induction of heart failure.
pubmed:affiliation
Institut für Herz- und Kreislaufphysiologie and Institut für Klinische Anaesthesiologie, Heinrich-Heine-Universität, Düsseldorf, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't