Ho Geol Ryu
Seoul National University · Medicine
About the Lab
Professor Ho Geol Ryu's research lab specializes in clinical anesthesiology and critical care, with a primary focus on optimizing perioperative outcomes in liver transplantation. The lab investigates hemodynamic management, glucose control, and postoperative complications such as postreperfusion syndrome, acute kidney injury, and postoperative delirium. Key research directions include the use of vasoactive agents, anesthetic techniques, and institutional volume effects on transplant outcomes.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
15Acute hypotension after reperfusion of the liver graft occurs frequently during liver transplantation. A randomized, prospective trial was performed to test the effects of epinephrine and phenylephrine pretreatments for attenuating postreperfusion syndrome (PRS). Ninety-three adult liver recipients were randomly allocated to receive an intravenous bolus of 10 μg of epinephrine, 100 μg of phenylephrine, or normal saline (the control group) at the time of graft reperfusion. The occurrence of PRS,
BACKGROUND: The relationship between institutional case volume and clinical outcomes after living donor liver transplantation is not clarified. METHODS: We conducted a nationwide retrospective cohort study using the database of Korean National Healthcare Insurance Service. Between January 2007 and December 2016, 7073 adult living donor liver transplantations were performed at 50 centers in Korea. Centers were categorized according to the average annual number of liver transplantations: >50, 10 t
BACKGROUND: Glucose control can be difficult in the intraoperative and immediate postoperative period of liver transplantation. Hyperglycemia and glucose variability have been associated with acute kidney injury (AKI) in critically ill patients. We performed a retrospective study to test the hypothesis that perioperative glucose levels represented by time-weighted average glucose levels and glucose variability are independently associated with the incidence of postoperative AKI in patients under
The addition of preemptive low-dose epidural ketamine (1.2 mg/h) to preemptive thoracic epidural analgesia did not have any beneficial effects in preventing chronic postthoracotomy pain.
BACKGROUND: Postoperative delirium after liver transplantation is relatively common, especially due to preexisting conditions such as hepatic encephalopathy. Most studies of delirium after liver transplantation were based on ICU practices using deep hypnosedation. Therefore, risk factors and consequences of postoperative delirium after liver transplantation were evaluated in the light sedation era. METHODS: A total of 253 liver transplantation patients were evaluated for postoperative delirium.
The implementation of a low fresh gas flow rate policy effectively reduces the amount of sevoflurane consumed for the same duration of anesthesia.
When using volatile anesthetics for elective living donor liver transplantation, sevoflurane seems to be a better option than desflurane for reducing the incidence of postreperfusion syndrome.
BACKGROUND: Recent advances in esophageal cancer treatment require a reevaluation of the relationship between institutional case-volume and patient outcome. The aim of this study was to analyze and update the association between surgical case-volume and both in-hospital and long-term mortality after esophagectomy for esophageal cancer. METHODS: Data of all adult patients who received esophageal cancer surgery in Korea between 2004 and 2017 were extracted from the database of the National Health
BACKGROUND: Patients undergoing heart transplantation (HT) frequently receive perioperative red blood cell (RBC) transfusions, but the impact of perioperative transfusion on clinical outcomes after HT remains unclear. METHODS: All adult HTs performed in Korea between 2007 and 2016 were analyzed using data from the National Health Insurance Service. Patients were classified into four groups based on the number of RBC units transfused during hospital admission for HT: 0, 1 to 2, 3 to 5, and greate
Research Areas
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