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Clinical Medicine of China ; (12): 1253-1256, 2011.
Article Dans Chinois | WPRIM | ID: wpr-423511

Résumé

Objective To summarize our experience in the management of cardiopulmonary bypass (CPB) with deep hypothermic circulatory arrest (DHCA) during aortic arch surgery.Methods From March 2007 to May 2010,58 consecutive patients,including 24 urgent and 34 selective operations underwent aortic arch surgery.Thirty-nine hemiarch and 19 total aortic arch replacement operations were performed.CPB was established by perfusion through femoral artery (42 cases) and right subclavian artery (RSA) ( 16 cases),of which 4 cases were carried out with antegrade cerebral perfusion (ACP).Results The mean CPB time was ( 208.88 ± 136.45 ) min.The mean cerebral circulation arrest was ( 27.36 ± 11.50 ) min.Nasopharyngeal and rectal temperature were ( 16.01 ±2.67)℃ and ( 19.72 ±2.13)℃ respectively before DHCA was initiated.The mean times for cooling and rewarming were ( 50.91 ± 16.89) min and ( 88.97 ± 43.68 ) min.The mean time of intubation was (56.70 ± 45.19 ) h.The time in ICU was ( 5.68 ± 5.31 ) d,and the time of hospitalization was (30.11 ± 22.27 ) d.Acute renal failure,hypoxemia,and paraplegia occurred post-operatively in 4,19,and 2 patients,respectively.Four patients died post-operatively with a mortality of 6.90%.Compared with those received hemiarch replacement operation,the patients received total aortic arch replacement had statistically longer time of CPB([262.16 ±219.97]min vs [182.92 ±53.81] min,t =2.14,P <0.05),cerebral circulatory arrest ( [30.47 ± 15.86 ] win vs [25.85 ± 8.48 ] min,t =2.40,P < 0.05 ),rewarming ( [110.00 ± 68.66 ] min vs [78.72 ± 17.31 ] min,t =2.69,P < 0.05 ),and intubation ( [93.95 ± 131.89 ] h vs [38.08 ± 30.70 ] h,t =2.50,P < 0.05 ).There was no significant difference in the times of these procedures between emergency surgery group and elective surgery group,between RSA and femoral artery cannulation groups.Conclusion It is crucial that the cooling and re-warming procedures during aortic arch surgery should be carried out slowly,gradually,and completely when DHCA was adopted alone.conclusion through right axillary artery or RSA was preferred for ACP,in order to accomplish the body circulation arrest at a relative high temperature,to shorten the CPB time,and to alleviate potential harmful effects of hypothermia.Meticulous management of CPB is one of the most important measures to improve the patients' outcome.

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