1.Successful extracorporeal membrane oxygenation treatment of catecholamine-induced cardiomyopathy-associated pheochromocytoma: a case report
Sangshin PARK ; Min KIM ; Dae In LEE ; Ju-Hee LEE ; Sangmin KIM ; Sang Yeub LEE ; Jang-Whan BAE ; Kyung-Kuk HWANG ; Dong-Woon KIM ; Myeong-Chan CHO ; Dae-Hwan BAE
Acute and Critical Care 2024;39(1):194-198
The main mechanism of Takotsubo cardiomyopathy (TCM) is catecholamine-induced acute myocardial stunning. Pheochromocytoma, a catecholamine-secreting tumor, can cause several cardiovascular complications, including hypertensive crisis, myocardial infarction, toxic myocarditis, and TCM. A 29-year-old woman presented to our hospital with general weakness, vomiting, dyspnea, and chest pain. The patient was nullipara, 28 weeks’ gestation, and had a cachexic morphology. Her cardiac enzyme levels were elevated and bedside echocardiography showed apical akinesia, suggesting TCM. The next day, she could not feel the fetal movement, and an emergency cesarean section was performed. After delivery, the patient experienced cardiac arrest and was transferred to the intensive care unit for cardiopulmonary resuscitation (CPR). Spontaneous circulation returned after 28 minutes of CPR, but cardiogenic shock continued, and extracorporeal membrane oxygenation (ECMO) was initiated. On the third day of ECMO maintenance, left ventricular ejection fraction improved and blood pressure stabilized. On the eighth day after ECMO insertion, it was removed. However, complications of the left leg vessels occurred, and several surgeries and interventions were performed. A left adrenal gland mass was found on computed tomography and was removed while repairing the leg vessels. Pheochromocytoma was diagnosed and left adrenalectomy was performed.
2.Successful extracorporeal membrane oxygenation treatment of catecholamine-induced cardiomyopathy-associated pheochromocytoma: a case report
Sangshin PARK ; Min KIM ; Dae In LEE ; Ju-Hee LEE ; Sangmin KIM ; Sang Yeub LEE ; Jang-Whan BAE ; Kyung-Kuk HWANG ; Dong-Woon KIM ; Myeong-Chan CHO ; Dae-Hwan BAE
Acute and Critical Care 2024;39(1):194-198
The main mechanism of Takotsubo cardiomyopathy (TCM) is catecholamine-induced acute myocardial stunning. Pheochromocytoma, a catecholamine-secreting tumor, can cause several cardiovascular complications, including hypertensive crisis, myocardial infarction, toxic myocarditis, and TCM. A 29-year-old woman presented to our hospital with general weakness, vomiting, dyspnea, and chest pain. The patient was nullipara, 28 weeks’ gestation, and had a cachexic morphology. Her cardiac enzyme levels were elevated and bedside echocardiography showed apical akinesia, suggesting TCM. The next day, she could not feel the fetal movement, and an emergency cesarean section was performed. After delivery, the patient experienced cardiac arrest and was transferred to the intensive care unit for cardiopulmonary resuscitation (CPR). Spontaneous circulation returned after 28 minutes of CPR, but cardiogenic shock continued, and extracorporeal membrane oxygenation (ECMO) was initiated. On the third day of ECMO maintenance, left ventricular ejection fraction improved and blood pressure stabilized. On the eighth day after ECMO insertion, it was removed. However, complications of the left leg vessels occurred, and several surgeries and interventions were performed. A left adrenal gland mass was found on computed tomography and was removed while repairing the leg vessels. Pheochromocytoma was diagnosed and left adrenalectomy was performed.
3.Successful extracorporeal membrane oxygenation treatment of catecholamine-induced cardiomyopathy-associated pheochromocytoma: a case report
Sangshin PARK ; Min KIM ; Dae In LEE ; Ju-Hee LEE ; Sangmin KIM ; Sang Yeub LEE ; Jang-Whan BAE ; Kyung-Kuk HWANG ; Dong-Woon KIM ; Myeong-Chan CHO ; Dae-Hwan BAE
Acute and Critical Care 2024;39(1):194-198
The main mechanism of Takotsubo cardiomyopathy (TCM) is catecholamine-induced acute myocardial stunning. Pheochromocytoma, a catecholamine-secreting tumor, can cause several cardiovascular complications, including hypertensive crisis, myocardial infarction, toxic myocarditis, and TCM. A 29-year-old woman presented to our hospital with general weakness, vomiting, dyspnea, and chest pain. The patient was nullipara, 28 weeks’ gestation, and had a cachexic morphology. Her cardiac enzyme levels were elevated and bedside echocardiography showed apical akinesia, suggesting TCM. The next day, she could not feel the fetal movement, and an emergency cesarean section was performed. After delivery, the patient experienced cardiac arrest and was transferred to the intensive care unit for cardiopulmonary resuscitation (CPR). Spontaneous circulation returned after 28 minutes of CPR, but cardiogenic shock continued, and extracorporeal membrane oxygenation (ECMO) was initiated. On the third day of ECMO maintenance, left ventricular ejection fraction improved and blood pressure stabilized. On the eighth day after ECMO insertion, it was removed. However, complications of the left leg vessels occurred, and several surgeries and interventions were performed. A left adrenal gland mass was found on computed tomography and was removed while repairing the leg vessels. Pheochromocytoma was diagnosed and left adrenalectomy was performed.
4.Successful extracorporeal membrane oxygenation treatment of catecholamine-induced cardiomyopathy-associated pheochromocytoma: a case report
Sangshin PARK ; Min KIM ; Dae In LEE ; Ju-Hee LEE ; Sangmin KIM ; Sang Yeub LEE ; Jang-Whan BAE ; Kyung-Kuk HWANG ; Dong-Woon KIM ; Myeong-Chan CHO ; Dae-Hwan BAE
Acute and Critical Care 2024;39(1):194-198
The main mechanism of Takotsubo cardiomyopathy (TCM) is catecholamine-induced acute myocardial stunning. Pheochromocytoma, a catecholamine-secreting tumor, can cause several cardiovascular complications, including hypertensive crisis, myocardial infarction, toxic myocarditis, and TCM. A 29-year-old woman presented to our hospital with general weakness, vomiting, dyspnea, and chest pain. The patient was nullipara, 28 weeks’ gestation, and had a cachexic morphology. Her cardiac enzyme levels were elevated and bedside echocardiography showed apical akinesia, suggesting TCM. The next day, she could not feel the fetal movement, and an emergency cesarean section was performed. After delivery, the patient experienced cardiac arrest and was transferred to the intensive care unit for cardiopulmonary resuscitation (CPR). Spontaneous circulation returned after 28 minutes of CPR, but cardiogenic shock continued, and extracorporeal membrane oxygenation (ECMO) was initiated. On the third day of ECMO maintenance, left ventricular ejection fraction improved and blood pressure stabilized. On the eighth day after ECMO insertion, it was removed. However, complications of the left leg vessels occurred, and several surgeries and interventions were performed. A left adrenal gland mass was found on computed tomography and was removed while repairing the leg vessels. Pheochromocytoma was diagnosed and left adrenalectomy was performed.
5.Lower Atrial Fibrillation Risk With Sodium-Glucose Cotransporter 2Inhibitors Than With Dipeptidyl Peptidase-4 Inhibitors in Individuals With Type 2 Diabetes: A Nationwide Cohort Study
Min KIM ; Kyoung Hwa HA ; Junyoung LEE ; Sangshin PARK ; Kyeong Seok OH ; Dae-Hwan BAE ; Ju Hee LEE ; Sang Min KIM ; Woong Gil CHOI ; Kyung-Kuk HWANG ; Dong-Woon KIM ; Myeong-Chan CHO ; Dae Jung KIM ; Jang-Whan BAE
Korean Circulation Journal 2024;54(5):256-267
Background and Objectives:
Accumulating evidence shows that sodium-glucose cotransporter 2 inhibitors (SGLT2is) reduce adverse cardiovascular outcomes. However, whether SGLT2i, compared with other antidiabetic drugs, reduce the new development of atrial fibrillation (AF) is unclear. In this study, we compared SGLT2i with dipeptidyl peptidase-4 inhibitors (DPP-4is) in terms of reduction in the risk of AF in individuals with type 2 diabetes.
Methods:
We included 42,786 propensity score-matched pairs of SGLT2i and DPP-4i users without previous AF diagnosis using the Korean National Health Insurance Service database between May 1, 2016, and December 31, 2018.
Results:
During a median follow-up of 1.3 years, SGLT2i users had a lower incidence of AF than DPP-4i users (1.95 vs. 2.65 per 1,000 person-years; hazard ratio [HR], 0.73; 95% confidence interval [CI], 0.55–0.97; p=0.028]). In individuals without heart failure, SGLT2i users was associated with a decreased risk of AF incidence (HR, 0.70; 95% CI, 0.52–0.94; p=0.019) compared to DPP-4i users. However, individuals with heart failure, SGLT2i users was not significantly associated with a change in risk (HR, 1.04; 95% CI, 0.44–2.44; p=0.936).
Conclusions
In this nationwide cohort study of individuals with type 2 diabetes, treatment with SGLT2i was associated with a lower risk of AF compared with treatment with DPP-4i.
6.Effects of remimazolam versus dexmedetomidine on recovery after transcatheter aortic valve replacement under monitored anesthesia care: a propensity score-matched, non-inferiority study
Ji-Hyeon KIM ; Jae-Sik NAM ; Wan-Woo SEO ; Kyung-Woon JOUNG ; Ji-Hyun CHIN ; Wook-Jong KIM ; Dae-Kee CHOI ; In-Cheol CHOI
Korean Journal of Anesthesiology 2024;77(5):537-545
Background:
Minimalist transcatheter aortic valve replacement (TAVR) under monitored anesthesia care (MAC) emphasizes early recovery. Remimazolam is a novel benzodiazepine with a short recovery time. This study hypothesized that remimazolam is non-inferior to dexmedetomidine in terms of recovery after TAVR.
Methods:
In this retrospective observational study, remimazolam was compared to dexmedetomidine in patients who underwent TAVR under MAC at a tertiary academic hospital between July 2020 and July 2022. The primary outcome was timely recovery after TAVR, defined as discharge from the intensive care unit within the first day following the procedure. Propensity score matching was used to compare timely recovery between remimazolam and dexmedetomidine, applying a non-inferiority margin of -10%.
Results:
The study included 464 patients, of whom 218 received remimazolam and 246 received dexmedetomidine. After propensity score matching, 164 patients in each group were included in the analysis. Regarding timely recovery after TAVR, remimazolam was non-inferior to dexmedetomidine (152 of 164 [92.7%] in the remimazolam group versus 153 of 164 [93.3%] in the dexmedetomidine group, risk difference [95% CI]: −0.6% [−6.7%, 5.5%]). The use of remimazolam was associated with fewer postoperative vasopressors/inotropes (21 of 164 [12.8%] vs. 39 of 164 [23.8%]) and temporary pacemakers (TPMs) (76 of 164 [46.3%] vs. 108 of 164 [65.9%]) compared to dexmedetomidine.
Conclusions
In patients undergoing TAVR under MAC, remimazolam was non-inferior to dexmedetomidine in terms of timely recovery. Remimazolam may be associated with better postoperative recovery profiles, including a lesser need for vasopressors/inotropes and TPMs.
7.Extracorporeal Shockwave Therapy Alleviates Inflammatory Pain by Down-Regulating NLRP3Inflammasome in Experimental Chronic Prostatitis and Chronic Pelvic Pain Syndrome
Woong Jin BAE ; Dongho SHIN ; Jun Jie PIAO ; Soomin KIM ; Yong Sun CHOI ; Bong Hee PARK ; Hyun Jin JUNG ; Samuel SORKHI ; Saager CHAWLA ; Chung Woon CHEON ; Dae Up KANG ; Jong Tae CHOI ; Sang-Hyuck PARK ; Sae Woong KIM ; Mahadevan Raj RAJASEKARAN
The World Journal of Men's Health 2024;42(1):157-167
Purpose:
To evaluate the anti-inflammatory and antioxidative effects of extracorporeal shockwave therapy (ESWT) on prostatitis and explore the mechanism of alleviating pain.
Materials and Methods:
For in vitro testing, RWPE-1 cells were randomly divided into 5 groups: (1) RWPE-1 group (normal control), (2) LPS group (lipopolysaccharide inducing inflammation), (3) 0.1ESWT group (treated by 0.1 mJ/mm2 energy level), (4) 0.2ESWT group (treated by 0.2 mJ/mm2 energy level), and (5) 0.3ESWT group (treated by 0.3 mJ/mm2 energy level). After ESWT was administered, cells and supernatant were collected for ELISA and western blot. For in vivo testing, Sprague-Dawley male rats were randomly divided into 3 groups: (1) normal group, (2) prostatitis group, and (3) ESWT group (n=12 for each). Prostatitis was induced by 17 beta-estradiol and dihydrotestosterone (DHT) administration. Four weeks after ESWT, the pain index was assessed for all groups and prostate tissues were collected for immunohistochemistry, immunofluorescence, apoptosis analysis and, western blot.
Results:
Our in vitro studies showed that the optimal energy flux density of ESWT was 0.2 mJ/mm2. In vivo, ESWT ameliorated discomfort in rats with prostatitis and inflammation symptoms were improved. Compared to normal rats, overexpressed NLRP3 inflammasomes triggered apoptosis in rats with prostatitis and this was improved by ESWT. TLR4-NFκB pathway was overactive after experimental prostatitis, compared to normal and ESWT groups, and prostatitis induced alterations in BAX/BAK pathway were inhibited by ESWT.
Conclusions
ESWT improved CP/CPPS by reducing NLRP3 inflammasome and ameliorated apoptosis via inhibiting BAX/BAK pathway in a rat model. TLR4 may play a key role in bonding NLRP3 inflammasome and BAX/BAK pathways. ESWT might be a promising approach for the treatment of CP/CPPS.
8.Effect of Ankle Joint Flexion Angle on Lower Extremity Muscle Activity and Break Point Angle during Nordic Hamstring Exercises in Amateur Soccer Players
Dae Woon HA ; Gi Bin KIM ; Il Young YU ; Soo Yong KIM ; Tae Gyu KIM
The Korean Journal of Sports Medicine 2024;42(4):254-261
Purpose:
The purpose of this study was to determine the effects of ankle dorsiflexion, neutral, and plantarflexion on lower extremity muscle activity and break point angle (BPA) during Nordic hamstring exercises.
Methods:
Twenty-four members of a college soccer club (age, 21.68±2.39 years; height, 175.63±4.76 cm; weight, 71.88±6.29 kg) were recruited to participate in the experiment, and all subjects were measured three times in triplicate for Nordic hamstrings at three different ankle angles with all subjects in one group. Surface electromyography equipment (miniDTS, Noraxon Inc.) was used to acquire 3 seconds of muscle activity data at the starting point (90°) during exercise, and motion analysis software (Kinovea version 0.9.5, Kinovea) was used to collect kinematic data at the point where knee strike angular velocity exceeded 30°/sec for BPA data acquisition.
Results:
The results of this study, lower extremity muscle activity was not significantly different in the three variants of Nordic hamstring exercises, but BPA was significantly lower in the dorsiflexion position (60.28°±6.35°) compared to the neutral position (65.32°±6.35°) and plantarflexion position (63.82°±7.01°) (p< 0.001).
Conclusion
These results suggest that the dorsi flexion position of the ankle during Nordic hamstring exercises allows the body to maintain the position for a longer period of time against eccentric forces in situations where the body is moving forward. This suggests that the ankle dorsi flexion position can be used as a position for effective Nordic hamstring exercises in amateur soccer players.
9.Development of colonic stent simulator using three-dimensional printing technique: a simulator development study in Korea
Hyundam GU ; Suyoung LEE ; Sol KIM ; Hye-Lim JANG ; Da-Woon CHOI ; Kyu Seok KIM ; Yu Ri SHIN ; Dae Young CHEUNG ; Bo-In LEE ; Jin Il KIM ; Han Hee LEE
Clinical Endoscopy 2024;57(6):790-797
Background/Aims:
Colonic stenting plays a vital role in the management of acute malignant colonic obstruction. The increasing use of self-expandable metal stents (SEMS) and the diverse challenges posed by colonic obstruction at various locations underscore the importance of effective training for colonic stent placement.
Methods:
All the components of the simulator were manufactured using silicone molding techniques in conjunction with three-dimensional (3D) printing. 3D images sourced from computed tomography scans and colonoscopy images were converted into a stereolithography format. Acrylonitrile butadiene styrene copolymers have been used in fused deposition modeling to produce moldings.
Results:
The simulator replicated the large intestine from the rectum to the cecum, mimicking the texture and shape of the human colon. It enables training for colonoscopy insertion, cecum intubation, loop reduction, and stenting within stenotic areas. Interchangeable stenotic modules for four sites (rectum, sigmoid colon, descending colon, and ascending colon) were easily assembled for training. These modules integrate tumor contours and blood vessel structures with a translucent center, allowing real-time visualization during stenting. Successful and repeatable demonstrations of stent insertion and expansion using the reusable SEMS were consistently achieved.
Conclusions
This innovative simulator offers a secure colonic stenting practice across various locations, potentially enhancing clinical outcomes by improving operator proficiency during actual procedures.
10.Effect of Ankle Joint Flexion Angle on Lower Extremity Muscle Activity and Break Point Angle during Nordic Hamstring Exercises in Amateur Soccer Players
Dae Woon HA ; Gi Bin KIM ; Il Young YU ; Soo Yong KIM ; Tae Gyu KIM
The Korean Journal of Sports Medicine 2024;42(4):254-261
Purpose:
The purpose of this study was to determine the effects of ankle dorsiflexion, neutral, and plantarflexion on lower extremity muscle activity and break point angle (BPA) during Nordic hamstring exercises.
Methods:
Twenty-four members of a college soccer club (age, 21.68±2.39 years; height, 175.63±4.76 cm; weight, 71.88±6.29 kg) were recruited to participate in the experiment, and all subjects were measured three times in triplicate for Nordic hamstrings at three different ankle angles with all subjects in one group. Surface electromyography equipment (miniDTS, Noraxon Inc.) was used to acquire 3 seconds of muscle activity data at the starting point (90°) during exercise, and motion analysis software (Kinovea version 0.9.5, Kinovea) was used to collect kinematic data at the point where knee strike angular velocity exceeded 30°/sec for BPA data acquisition.
Results:
The results of this study, lower extremity muscle activity was not significantly different in the three variants of Nordic hamstring exercises, but BPA was significantly lower in the dorsiflexion position (60.28°±6.35°) compared to the neutral position (65.32°±6.35°) and plantarflexion position (63.82°±7.01°) (p< 0.001).
Conclusion
These results suggest that the dorsi flexion position of the ankle during Nordic hamstring exercises allows the body to maintain the position for a longer period of time against eccentric forces in situations where the body is moving forward. This suggests that the ankle dorsi flexion position can be used as a position for effective Nordic hamstring exercises in amateur soccer players.

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