Young Ran Kwon

Purpose: Prolonged duration of cardiopulmonary bypass aggravates the degree of inflammation and coagulopathy. We investigated the influence of 6% hydroxyethylstarch (HES) 130/0.4 on coagulation and inflammation compared with albumin when used for both cardiopulmonary bypass priming and perioperative fluid therapyin patients undergoing complex valvular heart surgery. Materials and Methods:Fifty four patients were randomly allocated into albumin-HES, albumin-nonHES,and HES-HES groups. The cardiopu

This investigation evaluated the effect of continuous milrinone infusion on right ventriclular (RV) function during off-pump coronary artery bypass graft (OPCAB) surgery in patients with reduced RV function. Fifty patients scheduled for OPCAB, with thermodilution RV ejection fraction (RVEF) <35% after anesthesia induction, were randomly allocated to either milrinone (0.5 microgram/kg/min) or control (saline) group. Hemodynamic variables and RV volumetric data measured by thermodilution method we

Purpose: This study sought to compare clinical outcomes between transcatheter aortic valve replacement (TAVR) and sutureless aortic valve replacement (SU-AVR). Materials and Methods: In total, 320 patients with symptomatic severe aortic stenosis who underwent TAVR (n=254) or SU-AVR (n=66) at Severance Cardiovascular Hospital between July 2011 and September 2019 were included for analysis. Propensity score matching and inverse probability weighted adjustment were performed to adjust for confoundi

Purpose: We sought to evaluate the clinical usefulness of decision making by a multidisciplinary heart team for identifying potential candidates for transcatheter aortic valve implantation (TAVI) in patients with symptomatic severe aortic stenosis. Materials and Methods: The multidisciplinary team consisted of two interventionalcardiologists, two cardiovascular surgeons, one cardiac imaging specialist,and two cardiac anesthesiologists. Results: Out of 60 patients who were screened as potential T

Purpose: Transcatheter aortic valve implantation (TAVI) has become an attractive therapeutic strategy for severe aortic stenosis (AS) in elderly patients due to its minimally-invasive nature. Therefore, early results of its clinical outcomes in elderly Korean patients were evaluated. Materials and Methods: We compared early clinical outcomes of TAVI, surgical aortic valve replacement (SAVR), and optimal medical therapy (OMT) in patients aged ≥80 years with symptomatic severe AS. Treatment groups

In the heart, ventricular end diastolic volume (EDV) before ejection (preload) is directly related to the amount of stroke volume. Generally, the filling pressures such as central venous pressure or pulmonary artery occlusion pressure are used as an indirect indicator of preload. Since cardiac compliance dose change,however, the filling pressure may not be an accurate indicator of the cardiac preload. As substitutes, volumetric parameters like right ventricular EDV or global end diastolic volume

Purpose: Hypothermia adversely affects the coagulation that could be of clinical significance in patients receiving clopidogrel. We evaluated the influence of hypothermia on transfusion requirements in patients undergoing isolated off-pump coronary artery bypass surgery (OPCAB) who continued clopidogrel use within 5 days of surgery. Materials and Methods: Protocol-based, prospectively entered data of 369 patients were retrospectively reviewed. The time-weighted average of intraoperative temperat

Off-pump coronary artery bypass (OPCAB) patients often require fluid, vasopressor, or inotropic support.It is therefore important that vigilant monitoring be undertaken to guide intervention and monitor the effects of therapy.Continuous monitoring of cardiac output (CO) is advisable.The aim of this study was to compare continuous cardiac index (CCI) and stat cardiac index (SCI) with intermittent bolus cardiac index (ICI) in patients undergoing OPCAB surgery. Methods:Matched sets of CI measuremen

Background: Opioid-based patient controlled analgesia (PCA) provides adequate pain control following spinal surgeries at the expense of increased risk of postoperative nausea and vomiting (PONV). We evaluated the efficacy of dexamethasone added to ramosetron, which is a newly developed five-hydroxytryptamine receptor 3 antagonist with a higher receptor affinity and longer action duration compared to its congeners, on preventing PONV in highly susceptible patients receiving opioid-based IV PCA af

Transcatheter aortic valve implantation (TAVI) has shown favorable outcomes in patients with severe symptomatic aortic valve stenosiswho are at high surgical risk or are unsuitable candidates for open heart surgery. However, concerns exist over treating patients who havepreviously undergone mitral valve surgery due to the potential interference between the mitral prosthetic valve or ring and the TAVI device. In this case report, we present a patient with symptomatic severe aortic stenosis and pr

The intraaortic balloon pump (IABP) is the most effective and widely used device for temporary mechanical assistance of left heart. Considering left and right ventricular (RV) interdependence, IABP may also alleviate predominantly RV dysfunction following cardiac surgery. This is the case of a 61-year-old female patient who had experienced RV failure after cardiac surgery. After tricuspid valve replacement, preexisting RV failure was progressively aggravated and systemic blood pressure could not

A 51-yr-old man underwent mitral valve replacement and tricuspid valve repair due to mitral and tricuspid regurgitation under cardiopulmonary bypass. The pulmonary artery (PA) catheter was inserted easily via right internal jugular vein and functioned well until the end of surgery. The surgery was uneventful and patient's hemodynamics were stable both in the operating room and intensive care unit. All PA catheter functions were normal, but the balloon rupture was suspected because it was unable

Purpose: The aim of this study was to find an optimal range of activated clotting time (ACT) during off-pump coronary artery bypass surgery (OPCAB) yielding ischemic protection without the risk of hemorrhagic complications in patients with recent exposure to dual antiplatelet therapy. Materials and Methods: Three hundred and five patients who received aspirin and clopidogrel within 7 days of isolated multi-vessel OPCAB were retrospectively studied. Combined hemorrhagic and ischemic outcome was d