The Journal of thoracic and cardiovascular surgery
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J. Thorac. Cardiovasc. Surg. · Aug 2013
Contractile mitral annular forces are reduced with ischemic mitral regurgitation.
Forces acting on mitral annular devices in the setting of ischemic mitral regurgitation are currently unknown. The aim of this study was to quantify the cyclic forces that result from mitral annular contraction in a chronic ischemic mitral regurgitation ovine model and compare them with forces measured previously in healthy animals. ⋯ Mitral annular forces were measured for the first time in a chronic ischemic mitral regurgitation animal model. Our findings demonstrated an inferior left ventricular infarct to decrease significantly cyclic septal-lateral forces while modestly lowering those in the transverse. The measurement of these forces and their variation with left ventricular pressure contributes significantly to the development of mitral annular ischemic mitral regurgitation devices.
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J. Thorac. Cardiovasc. Surg. · Aug 2013
Risk factors for surgical site infection in pediatric cardiac surgery patients undergoing delayed sternal closure.
To determine the incidence of surgical site infections (SSIs) in congenital heart surgery (CHS) patients undergoing delayed sternal closure (DSC) and to evaluate risk factors for SSI. ⋯ For CHS patients undergoing DSC, extracorporeal membrane oxygenation and multiple periods of DSC are independent risk factors for SSI. New strategies for prevention and prophylaxis of SSI may be indicated for these high-risk patients who have worse outcomes and greater health care resource utilization.
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J. Thorac. Cardiovasc. Surg. · Aug 2013
Outcomes of cervical lymph node recurrence in patients with esophageal squamous cell carcinoma after esophagectomy with 2-field lymph node dissection.
The purpose of this study is to investigate the clinical characteristics, prognosis, and risk factors of patients in whom cervical lymph node cancer recurred after esophageal cancer surgery with 2-field lymph node dissection. ⋯ This study shows that 2-field lymph node dissection can be performed with an acceptable rate of cervical lymph node recurrence. Patients with isolated cervical lymph node recurrence demonstrated longer survival from diagnosis of recurrence than patients with other sites of recurrence.
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Obesity is a risk factor for increased perioperative morbidity and mortality in surgical patients. There have been limited studies to correlate the morbidity of lung cancer resection with obesity. ⋯ Overweight and normal weight patients do not differ significantly in rates of perioperative morbidities, 30-day mortality, and length of stay. Our study indicates that potential curative surgical resections can be offered to even significantly overweight patients.
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J. Thorac. Cardiovasc. Surg. · Aug 2013
Comparative StudyDurability of left ventricular assist devices: Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS) 2006 to 2011.
The present study compared the interval until device exchange or death from pump-related failure in patients with pulsatile versus continuous flow left ventricular assist devices. ⋯ The Analysis of Interagency Registry for Mechanically Assisted Circulatory Support data showed greater durability for continuous flow than for pulsatile left ventricular assist devices. Even longer durations of support can be expected if pump durability continues to improve.