Interactive cardiovascular and thoracic surgery
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Interact Cardiovasc Thorac Surg · Jul 2015
Observational StudyPreoperative frontal QRS-T angle is an independent correlate of hospital length of stay and predictor of haemodynamic support requirement following off-pump coronary artery bypass graft surgery.
With the adoption of novel operative techniques and aggressive care protocols that facilitate earlier extubation and mobilization of patients, postoperative length of stay (LOS) following coronary artery bypass graft surgery (CABG) has declined. However, there is paucity of information regarding preoperative electrocardiographic predictors of LOS following CABG. In this study, we investigated whether frontal QRS-T angle, which is an abnormal repolarization marker in prediction of various cardiovascular events, was an independent correlate of postoperative hospital LOS for off-pump CABG. Furthermore, we evaluated independent predictors of vasopressor agent/intra-aortic balloon pump (IABP) support requirement following off-pump CABG. ⋯ Prediction of the hospital LOS and patient outcome following CABG is of great importance. Being easily obtainable via standard 12-lead electrocardiogram and its low cost may make frontal QRS-T angle a beneficial marker for reducing both patient-based morbidity and economic burden.
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Interact Cardiovasc Thorac Surg · Jul 2015
Bridge-to-recovery strategy using extracorporeal membrane oxygenation for critical pulmonary hypertension complicated with cardiogenic shock.
Studies on mechanical-medical bridging for decompensated pulmonary hypertension (PH) are limited. We analysed the outcomes for critical PH patients who underwent extracorporeal membrane oxygenation (ECMO) support using a bridge-to-recovery (BTR) strategy. This study aimed to identify prognostic factors of BTR and evaluate the outcomes of survivors. ⋯ ECMO provides a therapeutic window for the medical stabilization of critically decompensated PH patients. Prompt ECMO intervention before haemodynamic collapse and careful patient selection are critical for successful BTR outcomes.
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Interact Cardiovasc Thorac Surg · Jul 2015
Early growth response gene-1 decoy oligonucleotides inhibit vascular smooth muscle cell proliferation and neointimal hyperplasia of autogenous vein graft in rabbits.
The excess proliferation of vascular smooth muscle cells (VSMCs) and the development of intimal hyperplasia is a hallmark of vein graft failure. This study aimed to verify that a single intraoperative transfection of early growth response gene-1 (Egr-1) decoy oligonucleotide (ODN) can suppress vein graft proliferation of VSMCs and intimal hyperplasia. ⋯ We confirmed that gene therapy using in vivo transfection of an Egr-1 decoy ODN significantly inhibits proliferation of VSMC and intimal hyperplasia of vein grafts in a rabbit model.
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Interact Cardiovasc Thorac Surg · Jul 2015
Aortic arch surgery after previous type A dissection repair: results up to 5 years.
Open aortic arch surgery after type A dissection repair is challenging. We sought to review our surgical experience to analyse the causes and timing, establish the risk profile for this patient population, and better define outcomes. ⋯ Aortic arch surgery after previous type A dissection repair can be performed with satisfactory early and mid-term results and acceptable risk of stroke. Cerebral perfusion strategies likely contribute to positive outcomes. Favourable mid-term survival justifies performing such difficult reoperations.