Document Detail
The use of a volatile anesthetic regimen protects against acute normovolemic hemodilution induced myocardial depression in patients with coronary artery disease
Abstract/OtherAbstract :
<b>Background:</b> Previous studies indicated that acute normovolemic hemodilution (ANH) was associated with a depression of myocardial function in coronary surgery patients with baseline heart rate faster than 90 bpm. It was suggested that this phenomenon could be explained by the occurrence of myocardial ischemia. In the present study, we hypothesized that the cardioprotective properties of a volatile anesthetic regimen might protect against the ANH related myocardial functional impairment. <b> Materials and Methods:</b> Forty elective coronary surgery patients with baseline heart rate faster than 90 bpm were randomly allocated to receive different anesthetic regimens. Group A (n = 20) received midazolam-based anesthesia. Group B (n = 20) received a sevoflurane-based anesthesia. Five-lead electrocardiogram, pulse oximetry, capnography, radial arterial pressure, and Swan Ganz continuous thermodilution cardiac output via right internal jugular vein were monitored. Measurements were obtained before and after ANH. Data were compared using paired t test. All data were expressed as mean &#x00B1; SD. Data were considered significant if <i> P</i> &lt; 0.05. <b> Results:</b> After ANH, systemic vascular resistance was slightly decreased in group A while there was a significant decrease in group B. In group A, cardiac output was slightly decreased from 5.07&#x00B1;1.17 l/min to 5.02&#x00B1;1.28 l/min after ANH, whereas in group B, cardiac output was significantly increased from 4.84&#x00B1;1.21 l/min to 6.02&#x00B1;1.28 l/min after ANH. <b> Conclusion:</b> In coronary surgery patients, with baseline heart rate faster than 90 bpm, anesthesia with sevoflurane during ANH was associated with an improvement in myocardial function after ANH, which was not present in patients anesthetized with midazolam.
Authors :
Lorsomradee Sratwadee, Lorsomradee Suraphong
Related Documents :
34209717 - Interpolated bigeminy ventricular premature contractions due to cardiac compression of ...
10981907 - Left ventricular remodelling, and systolic and diastolic function in young adults with ...
Contributors :
Publication Detail :
Publisher :  Medknow Publications     Type :  -     Format :  -    
Date Detail :
Subject :
Acute normovolemic hemodilution, coronary artery disease, volatile anesthetic
Coverage :
Relation :
Source :
Asian Journal of Transfusion Science
Copyright Information :
Other Details :
Languages :  EN    
Export Citation :
APA/MLA Format     Download EndNote     Download BibTex

Previous Document:  Post-splenectomy response in adult patients with immune thrombocytopenic purpura
Next Document:  Clinical significance of antibody to hepatitis B core antigen in multitransfused hemodialysis patien...