Objective: Discharge against medical advice (DAMA) from emergency departments (EDs) accounts for 0.1% to 2.7%. DAMA carries a risk of increased mortality and readmissions, and higher medical nationwide cost. Our aim was to investigate the general characteristics of DAMA patients from ED and discover for methods to reduce DAMA. Methods: In this study, we collected and analyzed the medical records of patients who visited the ED of a general hospital from 2015 to 2020. The subjects were categorized into a DAMA group and a non-DAMA group. We compared these groups with respect to gender, age, duration of ED stay, way to visit, the reason for the visit, insurance type, accompanied by guardian, and severity classification. In addition, the factors related to ED revisits or hospitalization within one month after DAMA were analyzed. Results: Of the 209,076 patients, 1,982 were subject to DAMA from ED. The DAMA group had a higher ratio of visits to ED by ambulance (53.2% vs. 21.4%, P<0.001), critically ill patients (74.1% vs. 51.7%, P<0.001), and medical aid type 1 (7.7% vs. 3.4%, P<0.001). The factors for the high ratio of ED revisit within one month after DAMA were as follows: critically ill patients (odds ratio [OR], 1.916; 95% confidence interval [CI], 1.305-2.814), accompanied by a guardian (OR, 1.525; 95% CI, 1.105-2.105), and medical aid type 1 (OR, 2.025; 95% CI, 1.358-3.02). Conclusion Developing a manual on DAMA procedures and a system that can provide economic and social support to patients is to be established to reduce DAMA from ED.

Background and Objectives: Endovascular therapy (EVT) first strategy has been widely adopted for the treatment of chronic limb threatening ischemia (CLTI) patients in realworld practice. This study aimed to investigate long-term outcomes of CLTI patients who underwent EVT and identify prognostic factors. Methods: From the retrospective cohorts of a Korean multicenter endovascular therapy registry, 1,036 patients with CLTI (792 men, 68.8 ± 9.5 years) were included. The primary endpoint was amputation-free survival (AFS) defined as the absence of major amputation or death. Secondary endpoints were major adverse limb events (MALE; a composite of major amputation, minor amputation, and reintervention). Results: Five-year AFS and freedom from MALE were 69.8% and 61%, respectively. After multivariate analysis, age (hazard ratio [HR], 1.476; p<0.001), end-stage renal disease (ESRD; HR, 2.340; p<0.001), Rutherford category (RC) 6 (HR, 1.456; p=0.036), and suboptimal EVT (HR, 1.798; p=0.005) were identified as predictors of major amputation or death, whereas smoking (HR, 0.594; p=0.007) was protective. Low body mass index (HR, 1.505; p=0.046), ESRD (HR, 1.648; p=0.001), femoropopliteal lesion (HR, 1.877; p=0.004), RC-6 (HR, 1.471;p=0.008), and suboptimal EVT (HR, 1.847; p=0.001) were predictors of MALE. The highest hazard rates were observed during the first 6 months for both major amputation or death and MALE. After that, the hazard rate decreased and rose again after 3–4 years. Conclusions In CLTI patients, long-term outcomes of EVT were acceptable. ESRD, RC-6, and suboptimal EVT were common predictors for poor clinical outcomes.

Purpose: In the past, spleen preservation during distal pancreatectomy (DP) was preferred; however, more recent studies reported comparable results between splenectomy and spleen preserving. We retrospectively reviewed patients in a single center who underwent laparoscopic DP with/without splenectomy, and evaluated the chronologic changes of surgical outcomes of the two procedures. Materials and Methods: Patients who underwent laparoscopic DP with or without splenectomy due to benign/borderline tumor from 2005 to 2019 were included in this study. We divided this period into Era 1 (2005–2012) and Era 2 (2013–2019), and compared the chronological evolution of surgical outcomes of laparoscopic distal pancreatosplenectomy (LDPS) to those of laparoscopic spleen-preserving distal pancreatectomy (LSpDP), including the long-term postoperative immunologic profiles. Results: A total of 198 cases were included (LSpDP: 80 cases; LDPS: 118 cases). As the period changed from Era 1 to Era 2, the ratio of LSpDP decreased and the surgical outcomes of LDPS improved. In Era 1, LSpDP group showed superior results compared to LDPS group in terms of hospital days and postoperative pancreatic fistula ratio; however, in Era 2, the surgical outcomes showed no statistical differences. No significant differences were observed in all of the immunologic markers. Conclusion We carefully conclude that during laparoscopic DP, combined splenectomy can be equivalent to spleen preserving in surgical and immunological outcomes, and inevitable splenectomy can be safely conducted.

Background: There has been no comparison of the determinants of admission route between acute ischemic stroke (AIS) and acute myocardial infarction (AMI). We examined whether factors associated with direct versus transferred-in admission to regional cardiocerebrovascular centers (RCVCs) differed between AIS and AMI. Methods: Using a nationwide RCVC registry, we identified consecutive patients presenting with AMI and AIS between July 2016 and December 2018. We explored factors associated with direct admission to RCVCs in patients with AIS and AMI and examined whether those associations differed between AIS and AMI, including interaction terms between each factor and disease type in multivariable models. To explore the influence of emergency medical service (EMS) paramedics on hospital selection, stratified analyses according to use of EMS were also performed. Results: Among the 17,897 and 8,927 AIS and AMI patients, 66.6% and 48.2% were directly admitted to RCVCs, respectively. Multivariable analysis showed that previous coronary heart disease, prehospital awareness, higher education level, and EMS use increased the odds of direct admission to RCVCs, but the odds ratio (OR) was different between AIS and AMI (for the first 3 factors, AMI > AIS; for EMS use, AMI < AIS). EMS use was the single most important factor for both AIS and AMI (OR, 4.72 vs. 3.90). Hypertension and hyperlipidemia increased, while living alone decreased the odds of direct admission only in AMI;additionally, age (65–74 years), previous stroke, and presentation during non-working hours increased the odds only in AIS. EMS use weakened the associations between direct admission and most factors in both AIS and AMI. Conclusions Various patient factors were differentially associated with direct admission to RCVCs between AIS and AMI. Public education for symptom awareness and use of EMS is essential in optimizing the transportation and hospitalization of patients with AMI and AIS.

Background and Objectives: The EPIC™ stent is a self-expanding, nitinol stent that has been designed to enhance flexibility and provide expansion within vessels. The aim of the present study was to investigate the clinical efficacy and safety of the EPIC™ stent when used to treat iliac artery diseases in a prospective Korean multicenter registry. Methods: A total of 138 patients with iliac artery diseases who received endovascular treatment with EPIC™ stents at 9 Korean sites were enrolled in a prospective cohort and followed for 1 year. The primary endpoint was the 1-year freedom from target lesion revascularization (TLR). The secondary endpoints were 1-year clinical patency and freedom from major adverse events (MAEs). Results: The mean age of the study subjects was 66.8±8.5 years and most subjects were male (86.2%). The most frequent lesion type was Trans-Atlantic Inter-Society Consensus B (43.5%) and the majority (56.5%) of the target lesions were located in the common iliac artery. Procedural success was obtained in 99.3% of patients. The freedom from TLR and the clinical patency at 1-year follow-up were 94.9% and 92.3%, respectively. The 1-year rate of MAEs was 5.1%. Combined coronary artery disease (hazard ratio [HR], 5.91; 95% confidence interval [CI], 1.13–30.89; p=0.035) and smaller stent diameter (HR, 0.38; 95% CI, 0.17–0.88;p=0.023) were identified as independent risk factors of TLR after EPIC™ stent implantation. Conclusions The EPIC™ stents demonstrated excellent immediate and 1-year efficacy and safety outcomes in iliac artery lesions in this multicenter, prospective, registry-based study.

Background and Objectives: The EPIC™ stent is a self-expanding, nitinol stent that has been designed to enhance flexibility and provide expansion within vessels. The aim of the present study was to investigate the clinical efficacy and safety of the EPIC™ stent when used to treat iliac artery diseases in a prospective Korean multicenter registry. Methods: A total of 138 patients with iliac artery diseases who received endovascular treatment with EPIC™ stents at 9 Korean sites were enrolled in a prospective cohort and followed for 1 year. The primary endpoint was the 1-year freedom from target lesion revascularization (TLR). The secondary endpoints were 1-year clinical patency and freedom from major adverse events (MAEs). Results: The mean age of the study subjects was 66.8±8.5 years and most subjects were male (86.2%). The most frequent lesion type was Trans-Atlantic Inter-Society Consensus B (43.5%) and the majority (56.5%) of the target lesions were located in the common iliac artery. Procedural success was obtained in 99.3% of patients. The freedom from TLR and the clinical patency at 1-year follow-up were 94.9% and 92.3%, respectively. The 1-year rate of MAEs was 5.1%. Combined coronary artery disease (hazard ratio [HR], 5.91; 95% confidence interval [CI], 1.13–30.89; p=0.035) and smaller stent diameter (HR, 0.38; 95% CI, 0.17–0.88;p=0.023) were identified as independent risk factors of TLR after EPIC™ stent implantation. Conclusions The EPIC™ stents demonstrated excellent immediate and 1-year efficacy and safety outcomes in iliac artery lesions in this multicenter, prospective, registry-based study.

Objective: This study examined the efficacy of trans-thoracic echocardiography (TTE) performed by emergency physicians in the diagnosis and treatment of acute myocardial infarction (MI) in patients with suspected acute coronary syndrome (ACS). Methods: This study enrolled patients with suspected symptoms of ACS from January 1, 2017, to June 30, 2017, in the emergency department (ED). One hundred and eighteen patients, who underwent TTE (TTE group), and 384 patients, who did not undergo TTE (control group), were enrolled in this study. The rate of performed coronary angiography (CAG) and percutaneous coronary intervention (PCI) were analyzed in the TTE group. The primary outcomes included the rate of CAG and PCI performed and door-to-puncture time (DTPT). Results: The rates of CAG and PCI were significantly higher in the TTE group than in the control group (CAG: 38% vs. 28%, P=0.039; PCI: 31% vs. 21%, P=0.034). The mean DTPT in non-ST segment elevation was 110 minutes (110.2±38.86 minutes) in the TTE group and 151 min (151.3±108.01 minutes) in the control group (P=0.054). Conclusion Patients with suspected ACS in ED with TTE had a higher rate of CAG and PCI performed compared to the patients without TTE. In patients with non-ST segment elevation in the initial electrocardiogram, TTE performed by emergency physicians tended to shorten the time to diagnose MI and DTPT.

Objective: This study examined the efficacy of trans-thoracic echocardiography (TTE) performed by emergency physicians in the diagnosis and treatment of acute myocardial infarction (MI) in patients with suspected acute coronary syndrome (ACS). Methods: This study enrolled patients with suspected symptoms of ACS from January 1, 2017, to June 30, 2017, in the emergency department (ED). One hundred and eighteen patients, who underwent TTE (TTE group), and 384 patients, who did not undergo TTE (control group), were enrolled in this study. The rate of performed coronary angiography (CAG) and percutaneous coronary intervention (PCI) were analyzed in the TTE group. The primary outcomes included the rate of CAG and PCI performed and door-to-puncture time (DTPT). Results: The rates of CAG and PCI were significantly higher in the TTE group than in the control group (CAG: 38% vs. 28%, P=0.039; PCI: 31% vs. 21%, P=0.034). The mean DTPT in non-ST segment elevation was 110 minutes (110.2±38.86 minutes) in the TTE group and 151 min (151.3±108.01 minutes) in the control group (P=0.054). Conclusion Patients with suspected ACS in ED with TTE had a higher rate of CAG and PCI performed compared to the patients without TTE. In patients with non-ST segment elevation in the initial electrocardiogram, TTE performed by emergency physicians tended to shorten the time to diagnose MI and DTPT.

Sweet’s syndrome (SS) is an autoimmune-mediated acute febrile neutrophilic dermatosis with a number of possible etiologies, including infection, malignancy, and drug reactions. In contrast to its original description, it can rarely involve extracutaneous organs, including the central nervous system, cardiovascular system, lung, liver, gastrointestinal tract, spleen, and bone. To our knowledge, there have been only three cases of SS accompanied by acute kidney injury worldwide, and this is the first report in which the patient recovered completely from acute kidney injury as well as cutaneous lesions with early steroid administration. Here, we report a case of SS with acute kidney injury in a patient with myelodysplastic syndrome (MDS) whose skin lesions and renal function recovered fully with early diagnosis and steroid therapy along with a review of the relevant literature.

PURPOSE: There are concerns that administration of bisphosphonate (BP) can substantially suppress bone turnover, potentially interfering with fracture healing. We investigated the effects of preoperative BP administration before internal fixation of intertrochanteric femoral fractures using fracture healing and clinical outcomes. MATERIALS AND METHODS: We retrospectively analyzed data from 130 patients who underwent internal fixation for osteoporotic intertrochanteric femoral fractures between March 2012 and July 2016. Patients previously treated with BPs for at least 3 months (BP group; n=29) were compared with the remaining patients (BP-naïve group; n=101). Radiographs were used to assess and compare fracture healing 3 months and 1 year postsurgery. The primary clinical outcome measure assessed was change in Koval score. RESULTS: Fracture union at 3 months after surgery was verified in 72.4% of patients (21/29) in the BP group and 90.1% of patients (91/101) in the BP-naïve group (P=0.027). Fracture union at 1 year postsurgery (BP group, 93.1% [27/29] vs. BP-naïve group, 97.0% [98/101], P=0.310) and change in Koval score (1.1 vs. 1.0, P=0.694) were not significantly different between the groups. Multivariable logistic regression analysis revealed that a history of BP administration was associated with an increased risk of delayed union at 3 months postsurgery (P=0.014). CONCLUSION: Preoperative administration of BP was associated with a decreased fracture healing rate 3 months after internal fixation, compared with BP-naïve patients. Therefore, patients previously treated with a BP should be carefully allowed to wean off walking aids and transition to full weight-bearing in the early postoperative period.
Bone Remodeling ; Diphosphonates ; Femoral Fractures ; Fracture Healing ; Hip Fractures ; Humans ; Logistic Models ; Osteoporosis ; Outcome Assessment (Health Care) ; Postoperative Period ; Retrospective Studies ; Walking ; Weight-Bearing