1.A Phase II Study of Preoperative Chemoradiotherapy with Capecitabine Plus Simvastatin in Patients with Locally Advanced Rectal Cancer
Hyunji JO ; Seung Tae KIM ; Jeeyun LEE ; Se Hoon PARK ; Joon Oh PARK ; Young Suk PARK ; Ho Yeong LIM ; Jeong Il YU ; Hee Chul PARK ; Doo Ho CHOI ; Yoonah PARK ; Yong Beom CHO ; Jung Wook HUH ; Seong Hyeon YUN ; Hee Cheol KIM ; Woo Yong LEE ; Won Ki KANG
Cancer Research and Treatment 2023;55(1):189-195
Purpose:
The purpose of this phase II trial was to evaluate whether the addition of simvastatin, a synthetic 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor, to preoperative chemoradiotherapy (CRT) with capecitabine confers a clinical benefit to patients with locally advanced rectal cancer (LARC).
Materials and Methods:
Patients with LARC (defined by clinical stage T3/4 and/or lymph node positivity) received preoperative radiation (45-50.4 Gy in 25-28 daily fractions) with concomitant capecitabine (825 mg/m2 twice per day) and simvastatin (80 mg, daily). Curative surgery was planned 4-8 weeks after completion of the CRT regimen. The primary endpoint was pathologic complete response (pCR). The secondary endpoints included sphincter-sparing surgery, R0 resection, disease-free survival, overall survival, the pattern of failure, and toxicity.
Results:
Between October 2014 and July 2017, 61 patients were enrolled; 53 patients completed CRT regimen and underwent total mesorectal excision. The pCR rate was 18.9% (n=10) by per-protocol analysis. Sphincter-sparing surgery was performed in 51 patients (96.2%). R0 resection was achieved in 51 patients (96.2%). One patient experienced grade 3 liver enzyme elevation. No patient experienced additional toxicity caused by simvastatin.
Conclusion
The combination of 80 mg simvastatin with CRT and capecitabine did not improve pCR in patients with LARC, although it did not increase toxicity.
2.Restoration of IARPD in partially edentulous patients with bone defects due to osteomyelitis treatment
Se-Hyun PARK ; Han-Gyul SUNG ; Kyung-Ho KO ; Yoon-Hyuk HUH ; Chan-Jin PARK ; Lee-Ra CHO
The Journal of Korean Academy of Prosthodontics 2021;59(3):359-369
Implant prostheses and removable partial dentures are mainly used as treatment methods for partial edentulous patients who have lost a number of teeth. The implant-assisted removable partial denture (IARPD) is strategically selected. The defect in maxillofacial structure due to osteomyelitis, a type of facial bone infection, causes dysfunction such as mastication, swallowing, and pronunciation, as well as social and psychological effects, so a removable restoration is required to restore the supporting tissue. Design of abutment and partial dentures is an essential factor in the success of treatment. In this case, IARPD, which has superior retention and stability compared to traditional removable partial dentures, can have a good prognosis. In a partial edentulous patient with bone defects due to osteomyelitis treatment, the stability of the denture was secured with IARPD restoration. Moreover, maintenance problem that may occur in the future was minimized by providing an appropriate denture design and occlusal scheme through several provisional restorations. This case can be expected to have a favorable prognosis in the long term.
3.Restoration of IARPD in partially edentulous patients with bone defects due to osteomyelitis treatment
Se-Hyun PARK ; Han-Gyul SUNG ; Kyung-Ho KO ; Yoon-Hyuk HUH ; Chan-Jin PARK ; Lee-Ra CHO
The Journal of Korean Academy of Prosthodontics 2021;59(3):359-369
Implant prostheses and removable partial dentures are mainly used as treatment methods for partial edentulous patients who have lost a number of teeth. The implant-assisted removable partial denture (IARPD) is strategically selected. The defect in maxillofacial structure due to osteomyelitis, a type of facial bone infection, causes dysfunction such as mastication, swallowing, and pronunciation, as well as social and psychological effects, so a removable restoration is required to restore the supporting tissue. Design of abutment and partial dentures is an essential factor in the success of treatment. In this case, IARPD, which has superior retention and stability compared to traditional removable partial dentures, can have a good prognosis. In a partial edentulous patient with bone defects due to osteomyelitis treatment, the stability of the denture was secured with IARPD restoration. Moreover, maintenance problem that may occur in the future was minimized by providing an appropriate denture design and occlusal scheme through several provisional restorations. This case can be expected to have a favorable prognosis in the long term.
4.Hemarthrosis Occurred after Arthroscopic Rotator Cuff Repair in a Chronic Renal Failure Patient with a Stenosis in an Ipsilateral Arteriovenous Fistula
Soon Ho HUH ; Se Jin KIM ; Jin Yeong PARK ; Kyung Rok KANG
The Journal of the Korean Orthopaedic Association 2019;54(4):366-371
Hemarthrosis occurring after arthroscopic surgery for lesions of the shoulder joint is a very rare complication that can develop due to an injury to the blood vessels when an anterior portal is formed. This is a complication that rarely develops in patients who are taking antithrombotic drugs or who do not have associated diseases, such as thrombocytopenia. We report a case of hemarthrosis that occurred after performing arthroscopic surgery to repair a rotator cuff tear in a patient with a stenosis in an arteriovenous fistula for hemodialysis in the ipsilateral upper arm.
Arm
;
Arteriovenous Fistula
;
Arthroscopy
;
Blood Vessels
;
Constriction, Pathologic
;
Hemarthrosis
;
Humans
;
Kidney Failure, Chronic
;
Renal Dialysis
;
Rotator Cuff
;
Shoulder
;
Shoulder Joint
;
Tears
;
Thrombocytopenia
5.Aquatide Activation of SIRT1 Reduces Cellular Senescence through a SIRT1-FOXO1-Autophagy Axis.
Chae Jin LIM ; Yong Moon LEE ; Seung Goo KANG ; Hyung W LIM ; Kyong Oh SHIN ; Se Kyoo JEONG ; Yang Hoon HUH ; Suin CHOI ; Myungho KOR ; Ho Seong SEO ; Byeong Deog PARK ; Keedon PARK ; Jeong Keun AHN ; Yoshikazu UCHIDA ; Kyungho PARK
Biomolecules & Therapeutics 2017;25(5):511-518
Ultraviolet (UV) irradiation is a relevant environment factor to induce cellular senescence and photoaging. Both autophagy- and silent information regulator T1 (SIRT1)-dependent pathways are critical cellular processes of not only maintaining normal cellular functions, but also protecting cellular senescence in skin exposed to UV irradiation. In the present studies, we investigated whether modulation of autophagy induction using a novel synthetic SIRT1 activator, heptasodium hexacarboxymethyl dipeptide-12 (named as Aquatide), suppresses the UVB irradiation-induced skin aging. Treatment with Aquatide directly activates SIRT1 and stimulates autophagy induction in cultured human dermal fibroblasts. Next, we found that Aquatide-mediated activation of SIRT1 increases autophagy induction via deacetylation of forkhead box class O (FOXO) 1. Finally, UVB irradiation-induced cellular senescence measured by SA-β-gal staining was significantly decreased in cells treated with Aquatide in parallel to occurring SIRT1 activation-dependent autophagy. Together, Aquatide modulates autophagy through SIRT1 activation, contributing to suppression of skin aging caused by UV irradiation.
Autophagy
;
Cell Aging*
;
Fibroblasts
;
Humans
;
Skin
;
Skin Aging
6.Arthroscopic Reduction and Transportal Screw Fixation of Acetabular Posterior Wall Fracture: Technical Note.
Jin Young PARK ; Woo Chull CHUNG ; Che Keun KIM ; Soon Ho HUH ; Se Jin KIM ; Bo Hyun JUNG
Hip & Pelvis 2016;28(2):120-126
Acetabular fractures can be treated with variable method. In this study, acetabular posterior wall fracture was treated with arthroscopic reduction and fixation using cannulated screw. The patient recovered immediately and had a satisfactory outcome. In some case of acetabular fracture could be good indication with additional advantages of joint debridement and loose body removal. So, we report our case with technical note.
Acetabulum*
;
Debridement
;
Humans
;
Joints
;
Methods
7.Serum calcium and phosphorus levels in patients undergoing maintenance hemodialysis: A multicentre study in Korea.
Gheun Ho KIM ; Bum Soon CHOI ; Dae Ryong CHA ; Dong Hyun CHEE ; Eunah HWANG ; Hyung Wook KIM ; Jae Hyun CHANG ; Joong Kyung KIM ; Jung Woo NOH ; Kwon Wook JOO ; Sang Choel LEE ; Sang Woong HAN ; Se Joong KIM ; Soo Wan KIM ; Sug Kyun SHIN ; Wondo PARK ; Won KIM ; Wooseong HUH ; Young Joo KWON ; Young Sun KANG
Kidney Research and Clinical Practice 2014;33(1):52-57
BACKGROUND: In many countries, nephrologists follow clinical practice guidelines for mineral bone disorders to control secondary hyperparathyroidism (SHPT) associated with abnormal serum calcium (Ca) and phosphorus (P) levels in patients undergoing maintenance hemodialysis (MHD). The Kidney Disease Outcomes Quality Initiative (KDOQI) Guidelines have long been used in Korea, and this study was undertaken to investigate the current status of serum Ca and P control in MHD patients. METHODS: Data were collected from a total of 1,018 patients undergoing MHD without intercurrent illness, in 17 hemodialysis centers throughout the country. Serum levels of Ca, P, and intact parathyroid hormone (iPTH) were measured over 1 year, and the average values were retrospectively analyzed. RESULTS: Serum levels of Ca, P, and the CaxP product were 9.1+/-0.7mg/dL, 5.3+/-1.4mg/dL, and 48.0+/-13.6mg2/dL2, respectively. However, the percentages of patients with Ca, P, and Ca x P product levels within the KDOQI guideline ranges were 58.7%, 51.0%, and 70.7%, respectively. Of the 1,018 patients, 270 (26.5%) had iPTH >300pg/mL (uncontrolled SHPT), whereas 435 patients (42.7%) showed iPTH <150pg/mL. Patients with uncontrolled SHPT had significantly higher values of serum Ca, P, and CaxP product than those with iPTH < or =300pg/mL. CONCLUSION: Despite the current clinical practice guidelines, SHPT seems to be inadequately controlled in many MHD patients. Uncontrolled SHPT was associated with higher levels of serum Ca, P, and Ca x P product, suggestive of the importance of SHPT management.
Calcium*
;
Humans
;
Hyperparathyroidism, Secondary
;
Kidney Diseases
;
Korea
;
Parathyroid Hormone
;
Phosphorus*
;
Renal Dialysis*
;
Retrospective Studies
8.Spontaneous Thrombolysis of Multiple Thrombi at Distal Region of Hypoplastic Vertebral Artery After Stent-assisted Angioplasty on Vertebral Artery Origin Stenosis: Angiographic Follow-up.
Hyung Seok KIM ; Choon Woong HUH ; Dal Soo KIM ; Jin Ho MOK ; In Soo KIM ; Se Hwan KIM
Journal of Cerebrovascular and Endovascular Neurosurgery 2014;16(3):281-286
Vertebral artery hypoplasia (VAH) can be easily overlooked if the contralateral side vertebral artery is intact, because of compensation by the contralateral artery or cerebral collateral network. The clinical relevance and hemodynamic impact of VAH is still controversial. However, VAH has recently been considered a risk factor for posterior circulation ischemia. Ischemic stroke is seldom caused by free floating thrombi (FFT) in the artery. Pathophysiology of FFT has not yet been clarified. The state of reduced blood flow such as a vertebral artery origin stenosis may cause FFT. Their instability may make them sources of recurrent artery to artery embolism. Patients with FFT will require appropriate medical and endovascular treatment. The current case illustrates a short-term angiographic change of spontaneous thrombolysis of VAH and multiple thrombi at the distal region of the stenosed lesion after stent-assisted angioplasty for a vertebral artery origin stenosis.
Angioplasty*
;
Arteries
;
Compensation and Redress
;
Constriction, Pathologic*
;
Embolism
;
Follow-Up Studies*
;
Hemodynamics
;
Humans
;
Ischemia
;
Risk Factors
;
Stroke
;
Vertebral Artery*
9.Primary Gastric Choriocarcinoma: Two Case Reports and Review of the Literatures.
Jung Ho YOON ; Min Soo KIM ; Eun Hee KOOK ; Se Han AHN ; Se Young JEONG ; Min Sung HAN ; Jung Kwon HUH ; Hye Jin KANG ; Im Il NA ; Soo Youn CHO ; Sang Bum KIM ; Baek Yeol RYOO ; Sung Hyun YANG
Cancer Research and Treatment 2008;40(3):145-150
Primary gastric choriocarcinoma (PGC) is a rare tumor, and its pathogenesis is still uncertain. Most PGCs have been reported to possess an adenocarcinoma component of variable extent, and pure PGC is especially rare. The diagnosis of PGC is confirmed by exhibition of choriocarcinomatous components on biopsy and exhibition of beta-hCG positive cell on immunohistochemical stain and elevation of the serum beta-hCG. Moreover it must be confirmed that no other site including gonads displays any tumor masses. The PGC tends to be more invasive and to have early metastasis. The median survival is known to be less than several months. We report two cases. The first case was a 62 year-old man who was diagnosed as advanced gastric cancer (AGC) by endoscopic biopsy with hepatic metasasis and received palliative chemotherapy with modified FOLFOX regimen and Genexol plus cisplatin regimen. He underwent subtotal gastrectomy due to perforation of the stomach during chemotherapy. On post-operative biopsy, He wasre-diagnosed as PGC and received another palliative chemotherapy modified FOLFIRI, BEP, EMACO, VIP. However, multiple liver metastases were aggravated, and also serum AFP level increased. Ultimately, the paient died 10 months after initial diagnosis. Another case was a 45 year-old man. On endoscopic biopsy, he was diagnosed as AGC of adenocarcinoma. On Chest and Abdomen CT, multiple pulmonary and hepatic metastasis were also confirmed. On liver biopsy, He was diagnosed as PGC. The immunohistochemical stains were performed and the results were cytokeratin positive, EMA negative and beta-hCG weak positive. The serum beta-hCG level was highly elevated. BEP, VIP and EMA/CO combination therapy were administered, but he died at 12th months after the initial diagnosis.
Abdomen
;
Adenocarcinoma
;
Antineoplastic Combined Chemotherapy Protocols
;
Biopsy
;
Choriocarcinoma
;
Cisplatin
;
Coloring Agents
;
Female
;
Fluorouracil
;
Gastrectomy
;
Gonads
;
Keratins
;
Leucovorin
;
Liver
;
Neoplasm Metastasis
;
Organoplatinum Compounds
;
Pregnancy
;
Stomach
;
Stomach Neoplasms
;
Thorax
10.Photodynamic Therapy for Choroidal Neovascularization Secondary to Age-Related Macular Degeneration.
Hyeong Gon YU ; Se Woong KANG ; Woo Ho NAM ; Hyoung Jun KOH ; Hyung Woo KWAK ; Oh Woong KWON ; Si Yeol KIM ; In Taek KIM ; Ha Kyoung KIM ; Hyun Woong KIM ; Young Jung ROH ; Jun Woong MOON ; Kyu Hyung PARK ; Suk Ho BYEON ; Su Jeong SONG ; Jae Kyoun AHN ; Boo Sup OUM ; Jae Ryung OH ; Seung Young YU ; Ill Han YOON ; Sung Chul LEE ; Won Ki LEE ; Jae Heung LEE ; Jeong Hee LEE ; Ji Eun LEE ; Tae Gon LEE ; Gwang Ju CHOI ; Don Il HAM ; Kuhl HUH ; Hum CHUNG
Journal of the Korean Ophthalmological Society 2007;48(6):789-798
PURPOSE: To investigate the effects of repeated photodynamic therapy (PDT) for subfoveal choroidal neovascularization secondary to age-related macular degeneration (AMD) in Korean patients. METHODS: Clinical data of patients who were treated with repeated (3 times or more) PDT for subfoveal choroidal neovascularization secondary to AMD and followed up for more than 6 months were collected from 17 hospitals around the country. Visual outcomes at 12 and 24 months, follow-up were compared between subtypes of choroidal neovascularization. The factors related to final visual prognosis and PDT-related adverse effects were evaluated. RESULTS: 244 patients (244 eyes) were recruited (male: 60%, age: 67.7+/-9.1 years). The portion of patients with predominantly classic, minimally classic, and occult without classic choroidal neovascularization was 57%, 13%, and 24%, respectively and that of patients with visual improvements or less than moderate visual loss at 24 months follow-up were 28%, 38%, 30% and 47%, 56%, and 65%, respectively. Baseline visual acuity and age were significantly related to the final visual prognosis (p<0.05). PDT-related adverse events developed in 15 (6.1%) patients, but most were mild and transient. CONCLUSIONS: Repeated PDT for subfoveal choroidal neovascularization secondary to AMD has effects comparable to those of previous prospective, controlled trials without any significant safety concerns in Korea.
Choroid*
;
Choroidal Neovascularization*
;
Follow-Up Studies
;
Humans
;
Korea
;
Macular Degeneration*
;
Photochemotherapy*
;
Prognosis
;
Visual Acuity

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