1.Risk of Cerebral Aneurysm Rupture After Liver Transplantation:Development and Validation of a Hemorrhagic Stroke Scoring Model
Minwoo KIM ; Jae Hyun KIM ; Wonhyoung PARK ; Jung Cheol PARK ; Jae Sung AHN ; Byung Duk KWUN ; Sung-Gyu LEE ; Shin HWANG ; Moinay KIM ; Seungjoo LEE
Journal of Korean Medical Science 2024;39(9):e88-
Background:
Liver transplantation (LT) patients appear to be more prone to neurological events compared to individuals undergoing other types of solid-organ transplantation.The aims of the present study were to analyze the prevalence of unruptured intracranial aneurysms (UIAs) in patients undergoing liver transplantation (LT) and to examine the perioperative occurrence of subarachnoid hemorrhage (SAH). Also, it intended to systematically identify the risk factors of SAH and hemorrhagic stroke (HS) within a year after LT and to develop a scoring system which involves distinct clinical features of LT patients.
Methods:
Patients who underwent LT from January 2012 to March 2022 were analyzed.All included patients underwent neurovascular imaging within 6 months before LT. We conducted an analysis of prevalence and radiological features of UIA and SAH. The clinical factors that may have an impact on HS within one year of LT were also reviewed.
Results:
Total of 3,487 patients were enrolled in our study after applying inclusion and exclusion criteria. The prevalence of UIA was 5.4%. The incidence of SAH and HS within one year following LT was 0.5% and 1.6%, respectively. We developed a scoring system based on multivariable analysis to predict the HS within 1-year after LT. The variables were a poor admission mental status, the diagnosis of UIA, serum ammonia levels, and Model for End-stage Liver Disease (MELD) scores. Our model showed good discrimination among the development (C index, 0.727; 95% confidence interval [CI], 0.635–0.820) and validation (C index, 0.719; 95% CI, 0.598–0.801) cohorts.
Conclusion
The incidence of UIA and SAH was very low in LT patients. A poor admission mental status, diagnosis of UIA, serum ammonia levels, and MELD scores were significantly associated with the risk of HS within one year after LT. Our scoring system showed a good discrimination to predict the HS in LT patients.
2.Efficacy of intraoperative neuromonitoring (IONM) and intraoperative indocyanine green videoangiography (ICG-VA) during unruptured anterior choroidal artery aneurysm clipping surgery
Chanbo EUN ; Seung Joo LEE ; Jung Cheol PARK ; Jae Sung AHN ; Byung Duk KWUN ; Wonhyoung PARK
Journal of Cerebrovascular and Endovascular Neurosurgery 2023;25(2):150-159
Objective:
The aim of this study was to investigate the efficacy of intraoperative indocyanine green videoangiography (ICG-VA) and intraoperative neuromonitoring (IONM) to prevent postoperative ischemic complications during microsurgical clipping of unruptured anterior choroidal artery (AChA) aneurysms.
Methods:
We retrospectively reviewed the clinical and radiological records of all patients who had undergone microsurgical clipping for unruptured AChA aneurysms at our institution between April 2001 and December 2019. We compared the postoperative complication rate of the group for which intraoperative ICG-VA and IONM were utilized (group B; n=324) with that of the group for which intraoperative ICG-VA and IONM were not utilized (group A; n=72).
Results:
There were no statistically significant differences in demographic data between the two groups. Statistically significant differences were observed in the rate of overall complications (p=0.014) and postoperative ischemic complications related to AChA territory (p=0.039). All the cases (n=4) in group B who had postoperative infarctions related to AChA territory showed false-negative results of intraoperative ICG-VA and IONM.
Conclusions
Preserving the patency of the AChA is essential to minimize postoperative complications. Intraoperative monitoring tools including ICG-VA and IONM can greatly contribute to lowering complication rates. However, their pitfalls and false-negative results should always be considered.
3.Efficacy and Safety of Rebamipide versus Its New Formulation, AD-203, in Patients with Erosive Gastritis: A Randomized, DoubleBlind, Active Control, Noninferiority, Multicenter, Phase 3 Study
Gwang Ha KIM ; Hang Lak LEE ; Moon Kyung JOO ; Hong Jun PARK ; Sung Woo JUNG ; Ok-Jae LEE ; Hyungkil KIM ; Hoon Jai CHUN ; Soo Teik LEE ; Ji Won KIM ; Han Ho JEON ; Il-Kwun CHUNG ; Hyun-Soo KIM ; Dong Ho LEE ; Kyoung-Oh KIM ; Yun Jeong LIM ; Seun-Ja PARK ; Soo-Jeong CHO ; Byung-Wook KIM ; Kwang Hyun KO ; Seong Woo JEON ; Jae Gyu KIM ; In-Kyung SUNG ; Tae Nyeun KIM ; Jae Kyu SUNG ; Jong-Jae PARK
Gut and Liver 2021;15(6):841-850
Background/Aims:
The mucoprotective drug rebamipide is used to treat gastritis and peptic ulcers. We compared the efficacy of Mucosta Ⓡ (rebamipide 100 mg) and its new formulation, AD-203 (rebamipide 150 mg), in treating erosive gastritis.
Methods:
This double-blind, active control, noninferiority, multicenter, phase 3 clinical trial randomly assigned 475 patients with endoscopically proven erosive gastritis to two groups: AD-203 twice daily or Mucosta Ⓡ thrice daily for 2 weeks. The intention-to-treat (ITT) analysis included 454 patients (AD-203, n=229; Mucosta Ⓡ , n=225), and the per-protocol (PP) analysis included 439 patients (AD-203, n=224; Mucosta Ⓡ , n=215). The posttreatment assessments included the primary (erosion improvement rate) and secondary endpoints (erosion and edema cure rates; improvement rates of redness, hemorrhage, and gastrointestinal symptoms). Drug-related adverse events were evaluated.
Results:
According to the ITT analysis, the erosion improvement rates (posttreatment) in AD-203-treated and Mucosta Ⓡ -treated patients were 39.7% and 43.8%, respectively. According to the PP analysis, the erosion improvement rates (posttreatment) in AD-203-treated and Mucosta Ⓡ -treated patients were 39.3% and 43.7%, respectively. The one-sided 97.5% lower limit for the improvement rate difference between the study groups was −4.01% (95% confidence interval [CI], –13.09% to 5.06%) in the ITT analysis and −4.44% (95% CI, –13.65% to 4.78%) in the PP analysis. The groups did not significantly differ in the secondary endpoints in either analysis. Twenty-four AD-203-treated and 20 Mucosta Ⓡ -treated patients reported adverse events but no serious adverse drug reactions; both groups presented similar adverse event rates.
Conclusions
The new formulation of rebamipide 150 mg (AD-203) twice daily was not inferior to rebamipide 100 mg (Mucosta Ⓡ ) thrice daily. Both formulations showed a similar efficacy in treating erosive gastritis.
4.Role of microsurgery for treatment of posterior circulation aneurysms in the endovascular era
Dong Jin KIM ; Yeon HEO ; Joonho BYUN ; Jung Cheol PARK ; Jae Sung AHN ; Deok Hee LEE ; Byung Duk KWUN ; Wonhyoung PARK
Journal of Cerebrovascular and Endovascular Neurosurgery 2020;22(3):141-155
Objective:
Several studies have reported that the outcomes of endovascular treatment were superior to those of microsurgical treatment for posterior circulation aneurysms. Thus, this study compared outcomes of endovascular and microsurgical treatment for posterior circulation aneurysms and assess the usefulness of microsurgery in these patients.
Methods:
Outcomes were retrospectively evaluated after endovascular and microsurgical treatment of 621 posterior circulation aneurysms. The 621 aneurysms included 187 treated by surgical clipping and 434 treated by endovascular coiling.
Results:
In patients with unruptured aneurysms the rates of residual lesions and retreatment were significantly lower in those who underwent microsurgical than endovascular treatment. However immediate postoperative and 6 month follow-up Glasgow outcome scale (GOS) scores did not differ significantly in the two groups. In patients with ruptured aneurysms, the rates of residual lesions and retreatment were significantly lower in the microsurgery than in the endovascular treatment group. Even so immediate postoperative and 6 month follow-up GOS scores did not differ significantly in the two groups.
Conclusions
Endovascular treatment has increasingly become an alternative modality for microsurgery in posterior circulation aneurysm, whereas the indication for microsurgery is greatly reduced. However, the absolute number of microsurgery is maintained showing that it is a still valuable technique, as advances in endovascular or stent-assisted coiling have not solved many of the challenges inherent in the management of complex aneurysms. Hence, the advantages and limitations of both modalities must be carefully concerned in posterior circulation aneurysm to obtain favorable outcome.
5.Inverse Psoriasis with Autoimmune Hepatitis.
Joon SEOK ; Kui Young PARK ; Hyun Woong LEE ; Hee Sung KIM ; Joo Hyun SHIM ; Seong Jun SEO ; Chang Kwun HONG
Annals of Dermatology 2017;29(6):820-821
No abstract available.
Hepatitis, Autoimmune*
;
Psoriasis*
6.Clinical Features and Awareness of Hand Eczema in Korea.
Jae Beom PARK ; Seung Ho LEE ; Kea Jeung KIM ; Ga Young LEE ; Jun Mo YANG ; Do Won KIM ; Seok Jong LEE ; Cheol Heon LEE ; Eun Joo PARK ; Kyu Han KIM ; Hee Chul EUN ; Sung Eun CHANG ; Kee Chan MOON ; Seong Hyun KIM ; Seong Jin KIM ; Byung Soo KIM ; Jun Young LEE ; Hyung Ok KIM ; Hoon KANG ; Min Geol LEE ; Soo Chan KIM ; Young Suck RO ; Joo Yeon KO ; Mi Youn PARK ; Myung Hwa KIM ; Jeong Hyun SHIN ; Hae Young CHOI ; Chang Kwun HONG ; Sung Yul LEE ; Hana BAK ; Sang Wook SON ; Ai Young LEE
Annals of Dermatology 2016;28(3):335-343
BACKGROUND: Hand eczema is one of the most common skin disorders and negatively affects quality of life. However, a large-scale multicenter study investigating the clinical features of patients with hand eczema has not yet been conducted in Korea. OBJECTIVE: To identify the prevalence of various hand diseases, which is defined as all cutaneous disease occurring in hands, and to investigate the clinical features of patients with hand eczema and the awareness about hand eczema in the general population and to compare the prevalence of hand eczema between health care providers and non-health care providers. METHODS: To estimate the prevalence of hand diseases, we analyzed the medical records of patients from 24 medical centers. Patients were assessed by online and offline questionnaires. A 1,000 from general population and 913 hand eczema patients answered the questionnaire, for a total of 1,913 subjects. RESULTS: The most common hand disease was irritant contact dermatitis. In an online survey, the lifetime prevalence of hand eczema was 31.2%. Hand eczema was more likely to occur in females (66.0%) and younger (20~39 years, 53.9%). Health care providers and housewives were the occupations most frequently associated with hand eczema. Winter (33.6%) was the most common season which people experienced aggravation. The 63.0% and 67.0% answered that hand eczema hinders their personal relationship and negatively affects daily living activities, respectively. CONCLUSION: Hand eczema is a very common disease and hinders the quality of life. The appropriate identification of hand eczema is necessary to implement effective and efficient treatment.
Activities of Daily Living
;
Dermatitis, Contact
;
Eczema*
;
Female
;
Hand*
;
Health Personnel
;
Humans
;
Korea*
;
Medical Records
;
Occupations
;
Prevalence
;
Quality of Life
;
Seasons
;
Skin
;
Surveys and Questionnaires
7.Reduction of Midline Shift Following Decompressive Hemicraniectomy for Malignant Middle Cerebral Artery Infarction.
Sang Beom JEON ; Sun U KWON ; Jung Cheol PARK ; Deok Hee LEE ; Sung Cheol YUN ; Yeon Jung KIM ; Jae Sung AHN ; Byung Duk KWUN ; Dong Wha KANG ; H Alex CHOI ; Kiwon LEE ; Jong S KIM
Journal of Stroke 2016;18(3):328-336
BACKGROUND AND PURPOSE: Hemicraniectomy is a decompressive surgery used to remove a large bone flap to allow edematous brain tissue to bulge extracranially. However, early indicators of the decompressive effects of hemicraniectomy are unclear. We investigated whether reduction of midline shift following hemicraniectomy is associated with improved consciousness and survival in patients with malignant middle cerebral artery infarctions. METHODS: We studied 70 patients with malignant middle cerebral artery infarctions (MMI) who underwent hemicraniectomies. Midline shift was measured preoperatively and postoperatively using computed tomography (CT). Consciousness level was evaluated using the Glasgow Coma Scale on postoperative day 1. Patient survival was assessed six months after stroke onset. RESULTS: The median time interval between preoperative and postoperative CT was 8.3 hours (interquartile range, 6.1–10.2 hours). Reduction in midline shift was associated with higher postoperative Glasgow Coma Scale scores (P<0.05). Forty-three patients (61.4%) were alive at six months after the stroke. Patients with reductions in midline shifts following hemicraniectomy were more likely to be alive at six months post-stroke than those without (P<0.001). Reduction of midline shift was associated with lower mortality at six months after stroke, after adjusting for age, sex, National Institutes of Health Stroke Scale score, and preoperative midline shift (adjusted hazard ratio, 0.71; 95% confidence interval, 0.62–0.81; P<0.001). CONCLUSIONS: Reduction in midline shift following hemicraniectomy was associated with improved consciousness and six-month survival in patients with MMI. Hence, it may be an early indicator of effective decompression following hemicraniectomy.
Brain
;
Consciousness
;
Decompression
;
Decompressive Craniectomy
;
Glasgow Coma Scale
;
Humans
;
Infarction
;
Infarction, Middle Cerebral Artery*
;
Middle Cerebral Artery*
;
Mortality
;
National Institutes of Health (U.S.)
;
Stroke
8.Usefulness of the Forrest Classification to Predict Artificial Ulcer Rebleeding during Second-Look Endoscopy after Endoscopic Submucosal Dissection.
Duk Su KIM ; Yunho JUNG ; Ho Sung RHEE ; Su Jin LEE ; Yeong Geol JO ; Jong Hwa KIM ; Jae Man PARK ; Il Kwun CHUNG ; Young Sin CHO ; Tae Hoon LEE ; Sang Heum PARK ; Sun Joo KIM
Clinical Endoscopy 2016;49(3):273-281
BACKGROUND/AIMS: Delayed post-endoscopic submucosal dissection (ESD) bleeding (DPEB) is difficult to predict and there is controversy regarding the usefulness of prophylactic hemostasis during second-look endoscopy. This study evaluated the risk factors related to DPEB, the relationship between clinical outcomes and the Forrest classification, and the results of prophylactic hemostasis during second-look endoscopy. METHODS: Second-look endoscopy was performed on the day after ESD to check for recent hemorrhage or potential bleeding and the presence of artificial ulcers in all patients. RESULTS: DPEB occurred in 42 of 581 patients (7.2%). Multivariate analysis determined that a specimen size ≥40 mm (odds ratio [OR], 3.03; p=0.003), and a high-risk Forrest classification (Forrest Ib+IIa+IIb; OR, 6.88; p<0.001) were risk factors for DPEB. DPEB was significantly more likely in patients classified with Forrest Ib (OR, 24.35; p<0.001), IIa (OR, 12.91; p<0.001), or IIb (OR, 8.31; p<0.001) ulcers compared with Forrest III ulcers. There was no statistically significant difference between the prophylactic hemostasis and non-hemostasis groups (Forrest Ib, p=0.938; IIa, p=0.438; IIb, p=0.397; IIc, p=0.773) during second-look endoscopy. CONCLUSIONS: The Forrest classification of artificial gastric ulcers during second-look endoscopy seems to be a useful tool for predicting delayed bleeding. However, routine prophylactic hemostasis during second-look endoscopy seemed to not be useful for preventing DPEB.
Classification*
;
Endoscopy*
;
Hemorrhage
;
Hemostasis
;
Hemostasis, Endoscopic
;
Humans
;
Multivariate Analysis
;
Risk Factors
;
Stomach Neoplasms
;
Stomach Ulcer
;
Ulcer*
9.Disease-specific Growth Charts of Marfan Syndrome Patients in Korea.
Younghee KWUN ; Su Jin KIM ; Jieun LEE ; Tsuyoshi ISOJIMA ; Doo Seok CHOI ; Duk Kyung KIM ; June HUH ; I Seok KANG ; Misun CHANG ; Sung Yoon CHO ; Young Bae SOHN ; Sung Won PARK ; Dong Kyu JIN
Journal of Korean Medical Science 2015;30(7):911-916
Patients with Marfan syndrome (MFS) presents with primary skeletal manifestations such as tall stature, chest wall abnormality, and scoliosis. These primary skeletal manifestations affect the growth pattern in MFS. Therefore, it is not appropriate to use normal growth charts to evaluate the growth status of MFS. We aimed to develop disease-specific growth charts for Korean MFS patients and to use these growth charts for understanding the growth patterns in MFS and managing of patients with MFS. Anthropometric data were available from 187 males and 152 females with MFS through a retrospective review of medical records. Disease-specific growth charts were generated and 3, 25, 50, 75, and 97 percentiles were calculated using the LMS (refers to lambda, mu, and sigma, respectively) smoothing procedure for height and weight. Comparisons between MFS patients and the general population were performed using a one-sample t-test. With regard to the height, the 50th percentile of MFS is above the normative 97th percentile in both genders. With regard to the weight, the 50 percentile of MFS is above the normative 75th percentile in male and between the normative 50th percentile and the 75th percentile in female. The disease-specific growth charts for Korean patients with MFS can be useful for monitoring growth patterns, planning the timing of growth-reductive therapy, predicting adult height and recording responses to growth-reductive therapy.
Adolescent
;
Adult
;
Asian Continental Ancestry Group
;
*Body Height
;
Body Mass Index
;
*Body Weight
;
Child
;
Child, Preschool
;
Female
;
*Growth Charts
;
Growth Disorders/*physiopathology
;
Humans
;
Male
;
Marfan Syndrome/genetics/*physiopathology
;
Microfilament Proteins/genetics
;
Reference Values
;
Republic of Korea
;
Retrospective Studies
;
Young Adult
10.Growing Organized Hematomas Following Gamma Knife Radiosurgery for Cerebral Arteriovenous Malformation : Five Cases of Surgical Excision.
Jung Cheol PARK ; Jae Sung AHN ; Do Hoon KWON ; Byung Duk KWUN
Journal of Korean Neurosurgical Society 2015;58(1):83-88
Organized hematoma is a rare complication that can develop following gamma knife radiosurgery (GKS) for cerebral arteriovenous malformation (AVM). Here, we describe 5 patients with growing organized hematomas that developed from completely obliterated AVMs several years after GKS. The patients were 15, 16, 30, 36, and 38 years old at the time of GKS, respectively, and 3 patients were female. Four AVMs were located in the lobe of the brain, and the remaining AVM were in the thalamus. Between 2-12 years after GKS, patients developed progressive symptoms such intractable headache or hemiparesis and enhancing mass lesions were identified. Follow-up visits revealed the slow expansion of the hematomas and surrounding edema. Steroids were ineffective, and thus surgery was performed. Histology revealed organized hematomas with a capsule, but there was no evidence of residual AVMs or vascular malformation. After surgery, the neurological symptoms of all patients improved and the surrounding edema resolved. However, the hematoma continued to expand and intraventricular hemorrhage developed in 1 patient whose hematoma was only partially removed. GKS for cerebral AVM can be complicated by growing, organized hematomas that develop after complete obliteration. Growing hematomas should be surgically evacuated if they are symptomatic. Radical resection of the hematoma capsule is also strongly recommended.
Brain
;
Edema
;
Female
;
Follow-Up Studies
;
Headache Disorders
;
Hematoma*
;
Hemorrhage
;
Humans
;
Intracranial Arteriovenous Malformations*
;
Intracranial Hemorrhages
;
Paresis
;
Radiosurgery*
;
Steroids
;
Thalamus
;
Vascular Malformations

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