In this paper, the absorbent carryover effect in a designed counter-flow enthalpy exchanger is investigated. In a built prototype of the liquid desiccant dehumidifier, air and the absorbent solution are in contact and flow through a packed multi-channel polymer tower in a counter-flow pattern. To avoid the absorbent carryover, the tower is equipped with an eliminator. Experimental measurements ...

BACKGROUND Robotic-assisted coronary artery bypass graft surgery (CABG) has been performed over the past decade. Despite encouraging results from selected centres, there is a paucity of robust clinical data to establish its clinical safety and efficacy. The present systematic review aimed to identify all relevant clinical data on robotic CABG. The primary endpoint was perioperative mortality, a...

Despite the reduction of mortality rate in the past years, coronary artery diseases (CADs) are the main reason of death in the world. Many factors including changes in nurses and medical staffs, numbers of beds influence the mortality rate of patients admitted in holidays and night time. The objectives of this study were to clarify the association between mortality rate and off-hours and holida...

Afilalo and colleagues have presented an updated meta-analysis and meta-regression of randomized trials of off-pump vs. on-pump coronary artery bypass grafting (CABG) surgery. Their two major findings are that while there was a reduction in mortality, myocardial infarction, and stroke in the off-pump group, this only reached significance for the latter, and that the effect of off-pump CABG was ...

BACKGROUND Although off-pump coronary artery bypass grafting (CABG) is now used worldwide for coronary revascularization, the pre- and intraoperative risk factors for myocardial injury associated with the surgical procedure remain to be elucidated. We performed a multivariate analysis to investigate factors that contribute to myocardial injury during off-pump CABG. METHODS The study populatio...

INTRODUCTION Postoperative atrial fibrillation after isolated coronary revascularization has been associated with increased morbidity and mortality. Aim of present investigation was to evaluate incidence of postoperative atrial fibrillation and its prognostic role in patients undergoing isolated coronary artery by-pass and disclose possible differences between off-pump and cardiopulmonary assis...

OBJECTIVE To compare the short-term outcomes in selected high-risk patients underwent off-pump coronary artery bypass grafting (OPCAB) or on-pump conventional coronary artery bypass grafting (CCABG). METHODS Comparative analysis was made between 318 high-risk patients underwent OPCAB between January 1999 to December 2005 and 197 high-risk patients underwent CCABG between January 1999 to Decem...

Pulmonary embolism is a common clinical condition associated with high mortality. Surgical pulmonary embolectomy (SPE), despite having been in existence for over 100 years, is generally regarded as an option of last resort with high mortality rates. Prompt recognition of predictors of mortality, such as right ventricular stress on echocardiography, helps decision-making for immediate surgical p...