Purpose: Intravenous (IV) acetaminophen-induced hypotension is a clinically significant issue that remains difficult to predict.Therefore, this study aimed to identify the factors associated with hypotension in patients with repeated IV acetaminophen administration. Materials and Methods: This observational cohort study included patients who received IV acetaminophen in the critical care unit of the Yongin Severance Hospital in 2020. All IV acetaminophen administration records for each patient were reviewed, and the blood pressure records within 2 h after IV acetaminophen administration were examined. Changes in blood pressure within 2 h of IV acetaminophen administration were monitored to identify hypotension, defined as a systolic blood pressure <90 mm Hg, a decrease in systolic blood pressure by 30 mm Hg, or a decrease in mean arterial pressure by 15%. Results: There were 1547 instances of IV acetaminophen administration among 398 patients. Of these, 416 instances (26.9%) resulted in hypotension among 204 patients (51.3%). A history of IV acetaminophen-induced hypotension did not predict subsequent hypotensive episodes, and there was no consistent tendency. The use of beta-blocker [odds ratio (OR)=1.50], gastrointestinal (GI) infection (OR=1.42), and septic shock (OR=1.68) were significant risk factors for IV acetaminophen-induced hypotension in multivariate analysis. In subgroup analysis of cases with beta-blocker, heart failure (OR=1.91), urinary tract infection (OR=2.16), GI infection (OR=1.83) were significant risk factors. Conclusion Severe infections, heart failure, and the use of beta-blockers are associated with IV acetaminophen-induced hypotension. However, IV acetaminophen-induced hypotension is inconsistent and depends on the patient’s condition.

Purpose: Intravenous (IV) acetaminophen-induced hypotension is a clinically significant issue that remains difficult to predict.Therefore, this study aimed to identify the factors associated with hypotension in patients with repeated IV acetaminophen administration. Materials and Methods: This observational cohort study included patients who received IV acetaminophen in the critical care unit of the Yongin Severance Hospital in 2020. All IV acetaminophen administration records for each patient were reviewed, and the blood pressure records within 2 h after IV acetaminophen administration were examined. Changes in blood pressure within 2 h of IV acetaminophen administration were monitored to identify hypotension, defined as a systolic blood pressure <90 mm Hg, a decrease in systolic blood pressure by 30 mm Hg, or a decrease in mean arterial pressure by 15%. Results: There were 1547 instances of IV acetaminophen administration among 398 patients. Of these, 416 instances (26.9%) resulted in hypotension among 204 patients (51.3%). A history of IV acetaminophen-induced hypotension did not predict subsequent hypotensive episodes, and there was no consistent tendency. The use of beta-blocker [odds ratio (OR)=1.50], gastrointestinal (GI) infection (OR=1.42), and septic shock (OR=1.68) were significant risk factors for IV acetaminophen-induced hypotension in multivariate analysis. In subgroup analysis of cases with beta-blocker, heart failure (OR=1.91), urinary tract infection (OR=2.16), GI infection (OR=1.83) were significant risk factors. Conclusion Severe infections, heart failure, and the use of beta-blockers are associated with IV acetaminophen-induced hypotension. However, IV acetaminophen-induced hypotension is inconsistent and depends on the patient’s condition.

Purpose: Intravenous (IV) acetaminophen-induced hypotension is a clinically significant issue that remains difficult to predict.Therefore, this study aimed to identify the factors associated with hypotension in patients with repeated IV acetaminophen administration. Materials and Methods: This observational cohort study included patients who received IV acetaminophen in the critical care unit of the Yongin Severance Hospital in 2020. All IV acetaminophen administration records for each patient were reviewed, and the blood pressure records within 2 h after IV acetaminophen administration were examined. Changes in blood pressure within 2 h of IV acetaminophen administration were monitored to identify hypotension, defined as a systolic blood pressure <90 mm Hg, a decrease in systolic blood pressure by 30 mm Hg, or a decrease in mean arterial pressure by 15%. Results: There were 1547 instances of IV acetaminophen administration among 398 patients. Of these, 416 instances (26.9%) resulted in hypotension among 204 patients (51.3%). A history of IV acetaminophen-induced hypotension did not predict subsequent hypotensive episodes, and there was no consistent tendency. The use of beta-blocker [odds ratio (OR)=1.50], gastrointestinal (GI) infection (OR=1.42), and septic shock (OR=1.68) were significant risk factors for IV acetaminophen-induced hypotension in multivariate analysis. In subgroup analysis of cases with beta-blocker, heart failure (OR=1.91), urinary tract infection (OR=2.16), GI infection (OR=1.83) were significant risk factors. Conclusion Severe infections, heart failure, and the use of beta-blockers are associated with IV acetaminophen-induced hypotension. However, IV acetaminophen-induced hypotension is inconsistent and depends on the patient’s condition.

Purpose: Intravenous (IV) acetaminophen-induced hypotension is a clinically significant issue that remains difficult to predict.Therefore, this study aimed to identify the factors associated with hypotension in patients with repeated IV acetaminophen administration. Materials and Methods: This observational cohort study included patients who received IV acetaminophen in the critical care unit of the Yongin Severance Hospital in 2020. All IV acetaminophen administration records for each patient were reviewed, and the blood pressure records within 2 h after IV acetaminophen administration were examined. Changes in blood pressure within 2 h of IV acetaminophen administration were monitored to identify hypotension, defined as a systolic blood pressure <90 mm Hg, a decrease in systolic blood pressure by 30 mm Hg, or a decrease in mean arterial pressure by 15%. Results: There were 1547 instances of IV acetaminophen administration among 398 patients. Of these, 416 instances (26.9%) resulted in hypotension among 204 patients (51.3%). A history of IV acetaminophen-induced hypotension did not predict subsequent hypotensive episodes, and there was no consistent tendency. The use of beta-blocker [odds ratio (OR)=1.50], gastrointestinal (GI) infection (OR=1.42), and septic shock (OR=1.68) were significant risk factors for IV acetaminophen-induced hypotension in multivariate analysis. In subgroup analysis of cases with beta-blocker, heart failure (OR=1.91), urinary tract infection (OR=2.16), GI infection (OR=1.83) were significant risk factors. Conclusion Severe infections, heart failure, and the use of beta-blockers are associated with IV acetaminophen-induced hypotension. However, IV acetaminophen-induced hypotension is inconsistent and depends on the patient’s condition.

Purpose: Intravenous (IV) acetaminophen-induced hypotension is a clinically significant issue that remains difficult to predict.Therefore, this study aimed to identify the factors associated with hypotension in patients with repeated IV acetaminophen administration. Materials and Methods: This observational cohort study included patients who received IV acetaminophen in the critical care unit of the Yongin Severance Hospital in 2020. All IV acetaminophen administration records for each patient were reviewed, and the blood pressure records within 2 h after IV acetaminophen administration were examined. Changes in blood pressure within 2 h of IV acetaminophen administration were monitored to identify hypotension, defined as a systolic blood pressure <90 mm Hg, a decrease in systolic blood pressure by 30 mm Hg, or a decrease in mean arterial pressure by 15%. Results: There were 1547 instances of IV acetaminophen administration among 398 patients. Of these, 416 instances (26.9%) resulted in hypotension among 204 patients (51.3%). A history of IV acetaminophen-induced hypotension did not predict subsequent hypotensive episodes, and there was no consistent tendency. The use of beta-blocker [odds ratio (OR)=1.50], gastrointestinal (GI) infection (OR=1.42), and septic shock (OR=1.68) were significant risk factors for IV acetaminophen-induced hypotension in multivariate analysis. In subgroup analysis of cases with beta-blocker, heart failure (OR=1.91), urinary tract infection (OR=2.16), GI infection (OR=1.83) were significant risk factors. Conclusion Severe infections, heart failure, and the use of beta-blockers are associated with IV acetaminophen-induced hypotension. However, IV acetaminophen-induced hypotension is inconsistent and depends on the patient’s condition.

Purpose: This study aimed to compare tumor tissue DNA (ttDNA) and circulating tumor DNA (ctDNA) to explore the clinical applicability of ctDNA and to better understand clonal evolution in patients with metastatic colorectal cancer undergoing palliative first-line systemic therapy. Materials and Methods: We performed targeted sequencing analysis of 88 cancer-associated genes using germline DNA, ctDNA at baseline (baseline-ctDNA), and ctDNA at progressive disease (PD-ctDNA). The results were compared with ttDNA data. Results: Among 208 consecutively enrolled patients, we selected 84 (41 males; median age, 59 years; range, 35 to 90 years) with all four sample types available. A total of 202 driver mutations were found in 34 genes. ttDNA exhibited the highest mutation frequency (n=232), followed by baseline-ctDNA (n=155) and PD-ctDNA (n=117). Sequencing ctDNA alongside ttDNA revealed additional mutations in 40 patients (47.6%). PD-ctDNA detected 13 novel mutations in 10 patients (11.9%) compared to ttDNA and baseline-ctDNA. Notably, seven mutations in five patients (6.0%) were missense or nonsense mutations in APC, TP53, SMAD4, and CDH1 genes. In baseline-ctDNA, higher maximal variant allele frequency (VAF) values (p=0.010) and higher VAF values of APC (p=0.012), TP53 (p=0.012), and KRAS (p=0.005) mutations were significantly associated with worse overall survival. Conclusion While ttDNA remains more sensitive than ctDNA, our ctDNA platform demonstrated validity and potential value when ttDNA was unavailable. Post-treatment analysis of PD-ctDNA unveiled new pathogenic mutations, signifying cancer’s clonal evolution. Additionally, baseline-ctDNA’s VAF values were prognostic after treatment.

Background/Aims: Gastroesophageal reflux disease (GERD) is a common chronic gastrointestinal disorder that typically requires long-term maintenance therapy. However, little is known about patient preferences and satisfaction and real-world prescription patterns regarding maintenance therapy for GERD. Methods: This observational, cross-sectional, multicenter study involved patients from 18 referral hospitals in Korea. We surveyed patients who had been prescribed proton pump inhibitors (PPIs) for GERD for at least 90 days with a minimum follow-up duration of 1 year. The main outcome was overall patient satisfaction with different maintenance therapy modalities. Results: A total of 197 patients were enrolled. Overall patient satisfaction, patient preferences, and GERD health-related quality of life scores did not significantly differ among the maintenance therapy modality groups. However, the on-demand therapy group experienced a significantly longer disease duration than the continuous therapy group. The continuous therapy group demonstrated a lower level of awareness of potential adverse effects associated with PPIs than the on-demand therapy group but received higher doses of PPIs than the on-demand therapy group. The prescribed doses of PPIs also varied based on the phenotype of GERD, with higher doses prescribed for non-erosive reflux disease than erosive reflux disease. Conclusion Although overall patient satisfaction did not significantly differ among the different PPI maintenance therapy modality groups, awareness of potential adverse effects was significantly different between the on-demand and continuous therapy groups.

Purpose: This study aimed to evaluate the use of active surgical co-management (SCM) by medical hospitalists for urology inpatient care. Materials and Methods: Since March 2019, a hospitalist-SCM program was implemented at a tertiary-care medical center, and a retrospective cohort study was conducted among co-managed urology inpatients. We assessed the clinical outcomes of urology inpatients who received SCM and compared passive SCM (co-management of patients by hospitalists only on request; March 2019 to June 2020) with active SCM (co-management of patients based on active screening by hospitalists; July 2020 to October 2021). We also evaluated the perceptions of patients who received SCM toward inpatient care quality, safety, and subjective satisfaction with inpatient care at discharge or when transferred to other wards. Results: We assessed 525 patients. Compared with the passive SCM group (n=205), patients in the active SCM group (n=320) required co-management for a significantly shorter duration (p=0.012) and tended to have a shorter length of stay at the urology ward (p=0.062) and less frequent unplanned readmissions within 30 days of discharge (p=0.095) while triggering significantly fewer events of rapid response team activation (p=0.002). No differences were found in the proportion of patients transferred to the intensive care unit, in-hospital mortality rates, or inpatient care questionnaire scores. Conclusion Active surveillance and co-management of urology inpatients by medical hospitalists can improve the quality and efficacy of inpatient care without compromising subjective inpatient satisfaction.

Background: No consensus exists regarding the early use of subcutaneous (SC) basal insulin facilitating the transition from continuous intravenous insulin infusion (CIII) to multiple SC insulin injections in patients with severe hyperglycemia other than diabetic ketoacidosis. This study evaluated the effect of early co-administration of SC basal insulin with CIII on glucose control in patients with severe hyperglycemia. Methods: Patients who received CIII for the management of severe hyperglycemia were divided into two groups: the early basal insulin group (n=86) if they received the first SC basal insulin 0.25 U/kg body weight within 24 hours of CIII initiation and ≥4 hours before discontinuation, and the delayed basal insulin group (n=79) if they were not classified as the early basal insulin group. Rebound hyperglycemia was defined as blood glucose level of >250 mg/dL in 24 hours following CIII discontinuation. Propensity score matching (PSM) methods were additionally employed for adjusting the confounding factors (n=108). Results: The rebound hyperglycemia incidence was significantly lower in the early basal insulin group than in the delayed basal insulin group (54.7% vs. 86.1%), despite using PSM methods (51.9%, 85.2%). The length of hospital stay was shorter in the early basal insulin group than in the delayed basal insulin group (8.5 days vs. 9.6 days, P=0.027). The hypoglycemia incidence did not differ between the groups. Conclusion Early co-administration of basal insulin with CIII prevents rebound hyperglycemia and shorten hospital stay without increasing the hypoglycemic events in patients with severe hyperglycemia.

Although bicarbonate has traditionally been used to treat patients with rhabdomyolysis at high risk of acute kidney injury (AKI), it is unclear whether this is beneficial. This study compared bicarbonate therapy to non-bicarbonate therapy for the prevention of AKI and mortality in rhabdomyolysis patients. Methods: In a propensity score-matched cohort study, patients with a creatine kinase (CK) level of >1,000 U/L during hospitalization were divided into bicarbonate and non-bicarbonate groups. Patients were subgrouped based on low-volume (<3 mL/kg/hr) or high-volume (≥3 mL/kg/hr) fluid resuscitation in the first 72 hours. Logistic regression analyses were used to identify the impacts of bicarbonate use and fluid resuscitation on AKI risk and need for dialysis. The Kaplan-Meier method was used to estimate survival. Volume overload and electrolyte imbalances were assessed. Results: Among 4,077 patients, we assembled a cohort of 887 pairs of patients treated with and without bicarbonate. Bicarbonate group had a higher incidence of AKI, higher rate of dialysis dependency, higher 30-day mortality, and longer hospital stay than the non-bicarbonate group. Further, patients who received high-volume fluid therapy had worse renal outcomes and a higher mortality than those who received low-volume fluids regardless of bicarbonate use. Bicarbonate use, volume overload, and AKI were associated with higher mortality. Volume overload was significantly higher in the bicarbonate group than in the non-bicarbonate group. Conclusion: Bicarbonate or high-volume fluid therapy for patients with rhabdomyolysis did not reduce AKI or improve mortality compared to non-bicarbonate or low-volume fluid therapy. Limited use of bicarbonate and adjustment of fluid volume may improve the short- and long-term outcomes of patients with rhabdomyolysis.