Seo Hee Ko
Yonsei University · Medicine
About the Lab
Professor Seo Hee Ko's research lab focuses on clinical and translational studies in perioperative medicine, with a strong emphasis on identifying and managing risk factors that influence surgical outcomes. Key research directions include the pathophysiology and management of postoperative complications such as acute kidney injury, non-anaemic iron deficiency in cardiac surgery patients, and the impact of preoperative sarcopenia on recovery. The lab also investigates the role of nutritional and metabolic factors—such as vitamin C and food allergens—on patient outcomes, integrating immunological and biochemical approaches to improve postoperative care.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
15BACKGROUND: Buckwheat (BW) has been recognized as a common food allergen in Korea, Japan, and other countries. Until now, serologic findings of BW food-allergic patients and its major allergenic components have not been clarified. In this study, we analyzed the serologic findings of BW food allergy and characterized its major allergenic components. METHODS: Nineteen BW-allergic subjects with symptoms after BW ingestion and 15 asymptomatic control subjects with positive skin prick test to BW were
In this retrospective study, data of 2,435 patients who received fentanyl and ropivacaine-based patient-controlled epidural analgesia (PCEA) for pain relief after elective surgery under general or spinal anesthesia were reviewed. Differences in postoperative pain, incidence of patient-controlled analgesia (PCA)-related adverse effects, and risk factors for the need for rescue analgesics for 48 hours postsurgery in young (age 20-39 years) and elderly (age ≥70 years) patients were evaluated. Altho
Acute kidney injury frequently occurs after cardiac surgery, and is primarily attributed to renal ischemia-reperfusion (I/R) injury and inflammation from surgery and cardiopulmonary bypass. Vitamin C, an antioxidant that is often depleted in critically ill patients, could potentially mitigate I/R-induced oxidative stress at high doses. We investigated the effectiveness of high-dose vitamin C in preventing I/R-induced renal injury. The ideal time and optimal dosage for administration were determi
Summary Comprehensive evidence regarding the treatment of non‐anaemic iron deficiency in patients undergoing valvular heart surgery is lacking. This study aimed to investigate the association between non‐anaemic iron deficiency and postoperative outcomes in these patients. We retrospectively analysed 321 patients of which 180 (56%) had iron deficiency (defined as serum ferritin < 100 ng.ml ‐1 or < 300 ng.ml ‐1 with transferrin saturation < 20%). While the iron‐deficient group had lower
NCT02536690 (clinicaltrials.gov).
Preoperative sarcopenic status can affect length of hospital stay and patient outcomes after surgery. The aim of this study was to investigate the impacts of preoperative handgrip strength (HGS) on length of stay (LOS) and outcomes after lumbar fusion surgery. HGS was measured preoperatively, and the cut-off value for low HGS was <28 kg for men and <18 kg for women. Perioperative patient outcomes were compared between patients with low and normal HGS. A total of 225 patients, consisting of 86 an
In OPCAB patients, preoperative NLR and delta-NLR were significantly associated with DAOH 90, and delta-NLR was an independent risk factor for long-term mortality, indicating their role in risk assessment, which is essential for perioperative management.
By monitoring the brain as the index organ of global oxygen supply–demand balance including major organs, regional cerebral oxygen saturation (rScO2) may indicate adequacy of renal perfusion. The aim of this study was to investigate the relationship between perioperative rScO2 and acute kidney injury (AKI) after off-pump coronary artery bypass (OPCAB). AKI was diagnosed according to the Kidney Disease: Improving Global Outcomes criteria. Collected rScO2 variables were baseline, mean, and lowest
Dexmedetomidine administration for 24 h starting from induction of anesthesia significantly reduced the incidence of postoperative AKI after cardiac surgery for IE (by 29 % vs. control) without hemodynamic side effects. This was accompanied by a significant attenuation of postoperative increase in serum epinephrine levels.
Comprehensive geriatric assessment, incorporating functional frailty, malnutrition, and anaemia, demonstrated a significant association with DAOH30 in older patients undergoing cardiac surgery. Among the assessed aspects, malnutrition showed the strongest association, which may underscore the importance of targeted nutritional interventions to improve outcomes in this patient population.
INTRODUCTION: Peri-operative anaemia is a common problem in patients undergoing cardiac surgery. Postoperative anaemia is not well understood relative to pre-operative anaemia; limited data exist on haemoglobin recovery and mortality after discharge, especially in the era of restrictive transfusion practice. We aimed to investigate the associations of pre-operative and persistent postoperative anaemia with 1-year mortality in patients undergoing valvular heart surgery. METHODS: in both men and w
Research Areas
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