1.Reaching New Heights: A Comprehensive Study of Hand Transplantations in Korea after Institutionalization of Hand Transplantation Law
Yo Han KIM ; Yun Rak CHOI ; Dong Jin JOO ; Woo Yeol BAEK ; Young Chul SUH ; Won Taek OH ; Jae Yong CHO ; Sang Chul LEE ; Sang Kyum KIM ; Hyang Joo RYU ; Kyung Ock JEON ; Won Jai LEE ; Jong Won HONG
Yonsei Medical Journal 2024;65(2):108-119
Purpose:
With the revision of the Organ and Transplantation Act in 2018, the hand has become legal as an area of transplantable organs in Korea. In January 2021, the first hand allotransplantation since legalization was successfully performed, and we have performed a total of three successful hand transplantation since then. By comparing and incorporating our experiences, this study aimed to provide a comprehensive reconstructive solution for hand amputation in Korea.
Materials and Methods:
Recipients were selected through a structured preoperative evaluation, and hand transplantations were performed at the distal forearm level. Postoperatively, patients were treated with three-drug immunosuppressive regimen, and functional outcomes were monitored.
Results:
The hand transplantations were performed without intraoperative complications. All patients had partial skin necrosis and underwent additional surgical procedures in 2 months after transplantation. After additional operations, no further severe complications were observed. Also, patients developed acute rejection within 3 months of surgery, but all resolved within 2 weeks after steroid pulse therapy. Motor and sensory function improved dramatically, and patients were very satisfied with the appearance and function of their transplanted hands.
Conclusion
Hand transplantation is a viable reconstructive option, and patients have shown positive functional and psychological outcomes. Although this study has limitations, such as the small number of patients and short follow-up period, we should focus on continued recovery of hand function, and be careful not to develop side effects from immunosuppressive drugs. Through the present study, we will continue to strive for a bright future regarding hand transplantation in Korea.
2.Efficacy and safety of losartan in childhood immunoglobulin A nephropathy: a prospective multicenter study
Hyesun HYUN ; Yo Han AHN ; Eujin PARK ; Hyun Jin CHOI ; Kyoung Hee HAN ; Jung Won LEE ; Su Young KIM ; Eun Mi YANG ; Jin Soon SUH ; Jae Il SHIN ; Min Hyun CHO ; Ja Wook KOO ; Kee Hyuck KIM ; Hye Won PARK ; Il Soo HA ; Hae Il CHEONG ; Hee Gyung KANG ; Seong Heon KIM
Childhood Kidney Diseases 2023;27(2):97-104
Purpose:
Angiotensin-converting enzyme inhibitors and angiotensin II receptor blockers (ARBs) are frequently employed to counteract the detrimental effects of proteinuria on glomerular diseases. However, the effects of ARBs remain poorly examined in pediatric patients with immunoglobulin A (IgA) nephropathy. Herein, we evaluated the efficacy and safety of losartan, an ARB, in pediatric IgA nephropathy with proteinuria.
Methods:
This prospective, single-arm, multicenter study included children with IgA nephropathy exhibiting proteinuria. Changes in proteinuria, blood pressure, and kidney function were prospectively evaluated before and 4 and 24 weeks after losartan administration. The primary endpoint was the difference in proteinuria between baseline and 24 weeks.
Results:
In total, 29 patients were enrolled and received losartan treatment. The full analysis set included 28 patients who received losartan at least once and had pre- and post-urinary protein to creatinine ratio measurements (n=28). The per-protocol analysis group included 22 patients who completed all scheduled visits without any serious violations during the study period. In both groups, the mean log (urine protein to creatinine ratio) value decreased significantly at 6 months. After 24 weeks, the urinary protein to creatinine ratio decreased by more than 50% in approximately 40% of the patients. The glomerular filtration rate was not significantly altered during the observation period.
Conclusions
Losartan decreased proteinuria without decreasing kidney function in patients with IgA nephropathy over 24 weeks. Losartan could be safely employed to reduce proteinuria in this patient population. ClinicalTrials.gov trial registration (NCT0223277)
3.Prediction of Early Recanalization after Intravenous Thrombolysis in Patients with Large-Vessel Occlusion
Young Dae KIM ; Hyo Suk NAM ; Joonsang YOO ; Hyungjong PARK ; Sung-Il SOHN ; Jeong-Ho HONG ; Byung Moon KIM ; Dong Joon KIM ; Oh Young BANG ; Woo-Keun SEO ; Jong-Won CHUNG ; Kyung-Yul LEE ; Yo Han JUNG ; Hye Sun LEE ; Seong Hwan AHN ; Dong Hoon SHIN ; Hye-Yeon CHOI ; Han-Jin CHO ; Jang-Hyun BAEK ; Gyu Sik KIM ; Kwon-Duk SEO ; Seo Hyun KIM ; Tae-Jin SONG ; Jinkwon KIM ; Sang Won HAN ; Joong Hyun PARK ; Sung Ik LEE ; JoonNyung HEO ; Jin Kyo CHOI ; Ji Hoe HEO ;
Journal of Stroke 2021;23(2):244-252
Background:
and Purpose We aimed to develop a model predicting early recanalization after intravenous tissue plasminogen activator (t-PA) treatment in large-vessel occlusion.
Methods:
Using data from two different multicenter prospective cohorts, we determined the factors associated with early recanalization immediately after t-PA in stroke patients with large-vessel occlusion, and developed and validated a prediction model for early recanalization. Clot volume was semiautomatically measured on thin-section computed tomography using software, and the degree of collaterals was determined using the Tan score. Follow-up angiographic studies were performed immediately after t-PA treatment to assess early recanalization.
Results:
Early recanalization, assessed 61.0±44.7 minutes after t-PA bolus, was achieved in 15.5% (15/97) in the derivation cohort and in 10.5% (8/76) in the validation cohort. Clot volume (odds ratio [OR], 0.979; 95% confidence interval [CI], 0.961 to 0.997; P=0.020) and good collaterals (OR, 6.129; 95% CI, 1.592 to 23.594; P=0.008) were significant factors associated with early recanalization. The area under the curve (AUC) of the model including clot volume was 0.819 (95% CI, 0.720 to 0.917) and 0.842 (95% CI, 0.746 to 0.938) in the derivation and validation cohorts, respectively. The AUC improved when good collaterals were added (derivation cohort: AUC, 0.876; 95% CI, 0.802 to 0.950; P=0.164; validation cohort: AUC, 0.949; 95% CI, 0.886 to 1.000; P=0.036). The integrated discrimination improvement also showed significantly improved prediction (0.097; 95% CI, 0.009 to 0.185; P=0.032).
Conclusions
The model using clot volume and collaterals predicted early recanalization after intravenous t-PA and had a high performance. This model may aid in determining the recanalization treatment strategy in stroke patients with large-vessel occlusion.
4.Percutaneous Left Atrial Appendage Occlusion Yields Favorable Neurological Outcomes in Patients with Non-Valvular Atrial Fibrillation
Oh-Hyun LEE ; Young Dae KIM ; Jung-Sun KIM ; Nak-Hoon SON ; Hui-Nam PAK ; Boyoung JOUNG ; Cheol-Woong YU ; Hyun-Jong LEE ; Woong-Chol KANG ; Eun-Seok SHIN ; Rak-kyeong CHOI ; Do-Sun LIM ; Yo Han JUNG ; Hye-Yeon CHOI ; Kyung-Yul LEE ; Bang-Hoon CHO ; Sang Won HAN ; Joong Hyun PARK ; Han-Jin CHO ; Hyung Jong PARK ; Hyo Suk NAM ; Ji Hoe HEO ; Chak-yu SO ; Gary Shing-Him CHEUNG ; Yat-yin LAM ; Xavier FREIXA ; Apostolos TZIKAS ; Yangsoo JANG ; Jai-Wun PARK
Korean Circulation Journal 2021;51(7):626-638
Background and Objectives:
Prior studies have shown that stroke patients treated with percutaneous left atrial appendage occlusion (LAAO) for non-valvular atrial fibrillation (NVAF) experience better outcomes than similar patients treated with warfarin. We investigated the impact of percutaneous left atrial appendage closure on post-stroke neurological outcomes in NVAF patients, compared with non-vitamin K antagonist oral anticoagulant (NOAC) therapy.
Methods:
Medical records for 1,427 patients in multiple registries and for 1,792 consecutive patients at 6 Korean hospitals were reviewed with respect to LAAO or NOAC treatment.Stroke severity in patients who experienced ischemic stroke or transient ischemic attack after either treatment was assessed with modified Rankin Scale (mRS) scoring at hospital discharge and at 3 and 12 months post-stroke.
Results:
mRS scores were significantly lower in LAAO patients at 3 (p<0.01) and 12 months (p<0.01) post-stroke, despite no significant differences in scores before the ischemic cerebrovascular event (p=0.22). The occurrences of disabling ischemic stroke in the LAAO and NOAC groups were 36.7% and 44.2% at discharge (p=0.47), 23.3% and 44.2% at 3 months post-stroke (p=0.04), and 13.3% and 43.0% at 12 months post-stroke (p=0.01), respectively.Recovery rates for disabling ischemic stroke at discharge to 12 months post-stroke were significantly higher for LAAO patients (50.0%) than for NOAC patients (5.6%) (p<0.01).
Conclusions
Percutaneous LAAO was associated with more favorable neurological outcomes after ischemic cerebrovascular event than NOAC treatment.
5.Prediction of Early Recanalization after Intravenous Thrombolysis in Patients with Large-Vessel Occlusion
Young Dae KIM ; Hyo Suk NAM ; Joonsang YOO ; Hyungjong PARK ; Sung-Il SOHN ; Jeong-Ho HONG ; Byung Moon KIM ; Dong Joon KIM ; Oh Young BANG ; Woo-Keun SEO ; Jong-Won CHUNG ; Kyung-Yul LEE ; Yo Han JUNG ; Hye Sun LEE ; Seong Hwan AHN ; Dong Hoon SHIN ; Hye-Yeon CHOI ; Han-Jin CHO ; Jang-Hyun BAEK ; Gyu Sik KIM ; Kwon-Duk SEO ; Seo Hyun KIM ; Tae-Jin SONG ; Jinkwon KIM ; Sang Won HAN ; Joong Hyun PARK ; Sung Ik LEE ; JoonNyung HEO ; Jin Kyo CHOI ; Ji Hoe HEO ;
Journal of Stroke 2021;23(2):244-252
Background:
and Purpose We aimed to develop a model predicting early recanalization after intravenous tissue plasminogen activator (t-PA) treatment in large-vessel occlusion.
Methods:
Using data from two different multicenter prospective cohorts, we determined the factors associated with early recanalization immediately after t-PA in stroke patients with large-vessel occlusion, and developed and validated a prediction model for early recanalization. Clot volume was semiautomatically measured on thin-section computed tomography using software, and the degree of collaterals was determined using the Tan score. Follow-up angiographic studies were performed immediately after t-PA treatment to assess early recanalization.
Results:
Early recanalization, assessed 61.0±44.7 minutes after t-PA bolus, was achieved in 15.5% (15/97) in the derivation cohort and in 10.5% (8/76) in the validation cohort. Clot volume (odds ratio [OR], 0.979; 95% confidence interval [CI], 0.961 to 0.997; P=0.020) and good collaterals (OR, 6.129; 95% CI, 1.592 to 23.594; P=0.008) were significant factors associated with early recanalization. The area under the curve (AUC) of the model including clot volume was 0.819 (95% CI, 0.720 to 0.917) and 0.842 (95% CI, 0.746 to 0.938) in the derivation and validation cohorts, respectively. The AUC improved when good collaterals were added (derivation cohort: AUC, 0.876; 95% CI, 0.802 to 0.950; P=0.164; validation cohort: AUC, 0.949; 95% CI, 0.886 to 1.000; P=0.036). The integrated discrimination improvement also showed significantly improved prediction (0.097; 95% CI, 0.009 to 0.185; P=0.032).
Conclusions
The model using clot volume and collaterals predicted early recanalization after intravenous t-PA and had a high performance. This model may aid in determining the recanalization treatment strategy in stroke patients with large-vessel occlusion.
6.Percutaneous Left Atrial Appendage Occlusion Yields Favorable Neurological Outcomes in Patients with Non-Valvular Atrial Fibrillation
Oh-Hyun LEE ; Young Dae KIM ; Jung-Sun KIM ; Nak-Hoon SON ; Hui-Nam PAK ; Boyoung JOUNG ; Cheol-Woong YU ; Hyun-Jong LEE ; Woong-Chol KANG ; Eun-Seok SHIN ; Rak-kyeong CHOI ; Do-Sun LIM ; Yo Han JUNG ; Hye-Yeon CHOI ; Kyung-Yul LEE ; Bang-Hoon CHO ; Sang Won HAN ; Joong Hyun PARK ; Han-Jin CHO ; Hyung Jong PARK ; Hyo Suk NAM ; Ji Hoe HEO ; Chak-yu SO ; Gary Shing-Him CHEUNG ; Yat-yin LAM ; Xavier FREIXA ; Apostolos TZIKAS ; Yangsoo JANG ; Jai-Wun PARK
Korean Circulation Journal 2021;51(7):626-638
Background and Objectives:
Prior studies have shown that stroke patients treated with percutaneous left atrial appendage occlusion (LAAO) for non-valvular atrial fibrillation (NVAF) experience better outcomes than similar patients treated with warfarin. We investigated the impact of percutaneous left atrial appendage closure on post-stroke neurological outcomes in NVAF patients, compared with non-vitamin K antagonist oral anticoagulant (NOAC) therapy.
Methods:
Medical records for 1,427 patients in multiple registries and for 1,792 consecutive patients at 6 Korean hospitals were reviewed with respect to LAAO or NOAC treatment.Stroke severity in patients who experienced ischemic stroke or transient ischemic attack after either treatment was assessed with modified Rankin Scale (mRS) scoring at hospital discharge and at 3 and 12 months post-stroke.
Results:
mRS scores were significantly lower in LAAO patients at 3 (p<0.01) and 12 months (p<0.01) post-stroke, despite no significant differences in scores before the ischemic cerebrovascular event (p=0.22). The occurrences of disabling ischemic stroke in the LAAO and NOAC groups were 36.7% and 44.2% at discharge (p=0.47), 23.3% and 44.2% at 3 months post-stroke (p=0.04), and 13.3% and 43.0% at 12 months post-stroke (p=0.01), respectively.Recovery rates for disabling ischemic stroke at discharge to 12 months post-stroke were significantly higher for LAAO patients (50.0%) than for NOAC patients (5.6%) (p<0.01).
Conclusions
Percutaneous LAAO was associated with more favorable neurological outcomes after ischemic cerebrovascular event than NOAC treatment.
7.Clinical Features and Recurrence Rate of Basal Cell Carcinomas Treated with Surgical Excision.
Yo Sup SHIN ; Bok Won PARK ; Ye Ji JANG ; Eun Byul CHO ; Eun Joo PARK ; Kwang Ho KIM ; Kwang Joong KIM
Korean Journal of Dermatology 2018;56(3):167-171
BACKGROUND: Basal cell carcinoma is the most common form of skin cancer. Surgical excision is commonly used as the therapeutic modality. However, there is insufficient data on the prognosis of Korean patients who have undergone surgical excision for basal cell carcinoma. OBJECTIVE: We therefore retrospectively analyzed the effectiveness of surgical excision in patients with basal cell carcinoma and compared it with previous studies. METHODS: From 2009 to 2015, we enrolled 138 patients with primary basal cell carcinoma who underwent surgical excision and analyzed the recurrence rate, clinical features, surgical procedures, and histopathological subtypes. RESULTS: The case series comprised 138 patients (M:F=1:1.51) with a mean age of 68.7 years. Recurrence after surgical excision was diagnosed in 0 of the 138 patients with a mean follow-up period of 47.5 months (12~93 months). The mean tumor diameter and surgical margin were 0.9 cm and 3.1 mm, respectively. Most tumors (85.5%) were of the nodular subtype. Primary closure was used most often to repair the surgical defects (44.9%). CONCLUSION: Surgical excision may be a satisfactory method for the treatment of primary basal cell carcinomas, especially in non-high-risk cases.
Carcinoma, Basal Cell*
;
Follow-Up Studies
;
Humans
;
Methods
;
Prognosis
;
Recurrence*
;
Retrospective Studies
;
Skin Neoplasms
8.A Case of Tinea Incognito Mimicking Folliculitis in Atopic Dermatitis Patient.
Yo Sup SHIN ; Bok Won PARK ; Eun Byul CHO ; Eun Joo PARK ; Kwang Ho KIM ; Kwang Joong KIM
Korean Journal of Medical Mycology 2017;22(2):73-77
A 27-year-old male with underlying history of atopic dermatitis presented with skin lesion on the trunk and upper extremity, occurring a month ago. Scattered erythematous multiple tiny maculopapules and patches were noticed. The lesion was first diagnosed as aggravated atopic dermatitis with folliculitis based on the clinical manifestation, but had failed to improve with antibiotics and medications for atopic dermatitis. KOH examinations were performed on his upper arm's lesion, and with detection of hyphae and isolation of Trichophyton rubrum by fungus culture, he was successfully treated with oral itraconazole 200 mg/day and topical flutrimazole. Tinea incognito refers to dermatophyte infections with atypical clinical presentation caused by previous treatment with steroid. Nowadays, the cases of tinea incognito have been increasing due to the increased usage of steroid and other immunosuppressants. Therefore, it is essential to include fungal infection in the differential diagnosis when cutaneous lesions are noticed in patients taking steroid and other immunosuppressants. Herein, we present a tinea incognito that clinically mimicked folliculitis in atopic dermatitis patient.
Adult
;
Anti-Bacterial Agents
;
Arthrodermataceae
;
Dermatitis, Atopic*
;
Diagnosis, Differential
;
Folliculitis*
;
Fungi
;
Humans
;
Hyphae
;
Immunosuppressive Agents
;
Itraconazole
;
Male
;
Skin
;
Tinea*
;
Trichophyton
;
Upper Extremity
9.Quality of Life in Korean Acne Patients: A Comparison with the Quality of Life Ten Years Ago.
Yo Sup SHIN ; Min Kyung LEE ; Bok Won PARK ; Eun Byul CHO ; Eun Joo PARK ; Kwang Ho KIM ; Kwang Joong KIM
Korean Journal of Dermatology 2017;55(9):572-579
BACKGROUND: Acne has been found to be associated with psychosocial problems, and the influence of acne may vary according to the era. OBJECTIVE: We aimed to compare the present quality of life (QOL) of acne patients with that in the past 10 years. Additionally, financial values that patients attach to the treatment of their acne were evaluated. METHODS: We analyzed the influences of acne on QOL using self-reported validated questionnaires (WHOQOLBREF, Skindex-29, APSEA, CADI) between June 2014 and December 2015. RESULTS: 100 acne patients and 70 controls were enrolled in the study. Compared with that in the past 10 years, the quality of life of acne patients decreased in terms of psychological and social relationships, and the difference between males and females was reduced. Clinical characteristics associated with quality of life were identified as age, duration, education, and self-reported severity score, etc. Patient-based financial valuation of treatment costs was associated with the Skindex-29, WHOQOL-BREF, and CADI scores. CONCLUSION: The impact of acne on QOL, especially psychosocial aspects, is important, and early initiation of the appropriate treatment may help to address the diminished QOL and financial burden of acne patients.
Acne Vulgaris*
;
Education
;
Female
;
Health Care Costs
;
Humans
;
Male
;
Quality of Life*

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