التفاصيل البيبلوغرافية
| العنوان: |
Does vacuum-assisted venous drainage increase gaseous microemboli during cardiopulmonary bypass? |
| المؤلفون: |
Jones, Timothy J., Deal, Dwight D., Vernon, Jason C., Blackburn, Noel, Stump, David A. |
| المصدر: |
Annals of Thoracic Surgery; Dec2002, Vol. 74 Issue 6, p2132, 6p |
| مصطلحات موضوعية: |
CARDIOPULMONARY bypass, CARDIAC surgery, ARTIFICIAL blood circulation |
| مستخلص: |
: BackgroundVacuum-assisted venous drainage enables adequate drainage through small-diameter cannulas but concerns are that it results in more gaseous microemboli delivered to the patient.: MethodsFive identical embolus detectors monitored the propagation of entrained air through a cardiopulmonary bypass (CPB) model. The ability of the CPB circuit to remove gaseous microemboli was studied with vacuum-assisted venous drainage and gravity siphon venous drainage using different pump speeds and rates of gaseous microemboli delivery.: ResultsUnder all conditions entrained venous air resulted in the detection of gaseous microemboli in the perfusate after the arterial filter. In blood-primed circuits, increased flow rates and higher levels of vacuum-assisted venous drainage were independently associated with increased gaseous microemboli counts in the arterial line. Vacuum-assisted venous drainage at −40 mm Hg did not significantly increase gaseous microemboli activity when compared with gravity siphon venous drainage at 4 L/min flow rate.: ConclusionsVacuum-assisted venous drainage at −40 mm Hg does not statistically reduce the ability of the CPB circuit to remove gaseous microemboli at lower pump rates. High levels of vacuum and increased pump flow rates should be avoided. Air should not be introduced into the venous line. [Copyright &y& Elsevier] |
|
Copyright of Annals of Thoracic Surgery is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Supplemental Index |
Full Text Finder