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2016, Number 2

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Rev Cubana Cardiol Cir Cardiovasc 2016; 22 (2)

Hypothermia techniques applied in cardiovascular surgery with extracorporeal circulation

Llanes EJR

Language: Spanish
References: 30
Page: 102-107
PDF size: 197.60 Kb.


ABSTRACT

The techniques of hypothermia during application of extracorporeal circulation (ECC) in different treatments of cardiovascular surgery, depends on the complexity of the anatomy and pathophysiology of surgical correction, having assessed the aortic clamping time (TPA), with coronary flow interruption and subsequent ischaemia, age, weight and hemodynamic stability of the patient, ensuring optimal cerebral blood flow. To apply this technique it is necessary to establish rules to be followed by the surgical team, made up of the main surgeon, perfusionist and anesthesiologist, taking into account the degree of hemodilution, anesthetic technique, administration of neuroprotective drugs, heparinization, check systemic anticoagulation, administration of antagonists alpha adrenergic control electrolyte balance, blood glucose, lactate, diuretics and the method selected to ensure myocardial protection body cooling, either moderate or deep hypothermia. Generally valve surgery, myocardial revascularization, and some non-complex congenital diseases, are made normothermia or moderate hypothermia, while the technique of deep hypothermia, reserves for cardiovascular open-heart surgery at high risk such as: heart valve reoperations of poor prognosis, aortic aneurysm, severe atherosclerosis with calcification of the aorta, technique Bentell, significant bleeding during trans and postoperative and technical accidents during brain surgery requiring their implementation, in order to ensure myocardial protection and patient. The aim of this review is to provide the perfusionist, the basic elements to select, implement and develop techniques ideal hypothermia in certain treatments of cardiovascular surgery with a high risk to the patient's progress and aims of reduce adverse clinical events due to poor perfusion.


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