Interactive cardiovascular and thoracic surgery
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Interact Cardiovasc Thorac Surg · May 2008
ReviewIs blood cardioplegia superior to crystalloid cardioplegia?
A best evidence topic in cardiac surgery was written according to a structured protocol. The question addressed was whether blood cardioplegia is clinically superior to crystalloid cardioplegia for myocardial protection. Altogether 501 papers were identified. ⋯ Of these, 10 reported some statistically significant clinical outcomes in favour of blood cardioplegia and five reported statistically significant differences in enzyme release in favour of blood cardioplegia. A recent survey of UK practice found that 56% of surgeons use cold blood cardioplegia, 14% use warm blood cardioplegia, 14% use crystalloid cardioplegia, 21% use retrograde infusion and 16% do not use any cardioplegia. The papers presented in our review support most of these practices!
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Interact Cardiovasc Thorac Surg · May 2008
Use of tissue microdialysis to investigate hyperlactataemia following paediatric cardiac surgery.
We investigated tissue lactate, pyruvate and lactate:pyruvate (LP) ratio post cardiac surgery and the relationship of cardiac index and oxygen delivery to late onset hyperlactataemia in ICU. It involved a prospective study of 10 children, mean age 4.9 (0.4) years, post-Fontan operation admitted with normo-lactataemia. Tissue lactate, pyruvate and LP ratio were monitored postoperatively every 30 min for 12 h via subcutaneous microdialysis in the abdominal wall. ⋯ Cardiac index increased from 2.83 (0.63) to 3.77 (1.34) l min(-1) m(-2) over the same period (P=0.05), with a corresponding increase in oxygen delivery from 4556 (1094) to 6076 (2322) ml min(-1) (P=0.04). Tissue microdialysis provides near-continuous measurement of tissue lactate and pyruvate, post cardiac surgery. Blood lactate rise post-Fontan is mirrored by tissue lactate and pyruvate concentrations, and not associated with a low or falling cardiac index or with tissue oxygen debt.
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Interact Cardiovasc Thorac Surg · May 2008
Case ReportsSurgical repair of post-traumatic lung hernia using a video-assisted open technique.
Post-traumatic lung herniation through a defect in the chest wall is an uncommon injury, with only about 300 reported in the literature. Various methods of treatment and repair have been described, including both purely thoracoscopic to full open techniques. We repaired a case by using a combination of minithoracotomy and video-assistance through the minithoracotomy wound. The patient did well and there was minimal postoperative pain.
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Interact Cardiovasc Thorac Surg · May 2008
Case ReportsThe use of intra-aortic balloon pump as cerebral protection in a patient with moyamoya disease undergoing coronary artery bypass grafting.
We performed coronary artery bypass grafting in an urgent and rare case of acute coronary syndrome with moyamoya disease in a 75-year-old female. Because of collateral dependent severe cerebrovascular obstruction, additional support for brain protection was necessary; we used high pressure pulsatile perfusion assist to maintain cerebral circulation with an intra-aortic balloon pump support throughout the cardiopulmonary bypass, giving a successful outcome.