1.The Risk Factors and Outcomes of Acute Kidney Injury after Thoracic Endovascular Aortic Repair.
The Korean Journal of Thoracic and Cardiovascular Surgery 2016;49(1):15-21
BACKGROUND: We aimed to evaluate the incidence, predictive factors, and impact of acute kidney injury (AKI) after thoracic endovascular aortic repair (TEVAR). METHODS: A total of 53 patients who underwent 57 TEVAR operations between 2008 and 2015 were reviewed for the incidence of AKI as defined by the RIFLE (risk, injury, failure, loss, and end-stage kidney disease risk) consensus criteria. The estimated glomerular filtration rate was determined in the perioperative period. Comorbidities and postoperative outcomes were retrospectively reviewed. RESULTS: Underlying aortic pathologies included 21 degenerative aortic aneurysms, 20 blunt traumatic aortic injuries, six type B aortic dissections, five type B intramural hematomas, three endoleaks and two miscellaneous diseases. The mean age of the patients was 61.2+/-17.5 years (range, 15 to 85 years). AKI was identified in 13 (22.8%) of 57 patients. There was an association of preoperative stroke and postoperative paraparesis and paraplegia with AKI. The average intensive care unit (ICU) stay in patients with AKI was significantly longer than in patients without AKI (5.3 vs. 12.7 days, p=0.017). The 30-day mortality rate in patients with AKI was significantly higher than patients without AKI (23.1% vs. 4.5%, p=0.038); however, AKI did not impact long-term survival. CONCLUSION: Preoperative stroke and postoperative paraparesis and paraplegia were identified as predictors for AKI. Patients with AKI experienced longer average ICU stays and greater 30-day mortality than those without AKI. Perioperative identification of high-risk patients, as well as nephroprotective strategies to reduce the incidence of AKI, should be considered as important aspects of a successful TEVAR procedure.
Acute Kidney Injury*
;
Aortic Aneurysm
;
Comorbidity
;
Consensus
;
Endoleak
;
Glomerular Filtration Rate
;
Hematoma
;
Humans
;
Incidence
;
Intensive Care Units
;
Kidney Failure, Chronic
;
Mortality
;
Paraparesis
;
Paraplegia
;
Pathology
;
Perioperative Period
;
Retrospective Studies
;
Risk Factors*
;
Stroke
2.A Case of the Dubowitz Syndrome.
Kyung Ae LEE ; Chi Ho YUN ; Jae Sun JUNG ; Hee Ju KIM ; Sung Ill AHN ; Hyung Ro MOON
Journal of the Korean Pediatric Society 1986;29(4):88-92
No abstract available.
3.Clinical studies of Henoch-Schonlein purpura which was considered as acute abdomen.
Seong Young JEONG ; Seong Yun CHO ; Chi Heong PARK ; Seong Ho CHA ; Byoug Soo CHO ; Chang Il AHN
Journal of the Korean Pediatric Society 1993;36(8):1124-1132
Henoch-Schonlein purpura is a common pediatric disease presenting most frequently with skin, gastrointestinal, joint and renal manifestations. But in cases are infrequently only severe gastrointestinal manifestations. It is hard to diagnose promptly and exactly. Clinical manifestations and laboratory findings were observed and analyzed in 20 cases with Henoch-Schonlein purpura which were considered as acute abdomen, hospitalized at Kyung Hee university Hospital during the period from December, 1982 to September, 1992. The following results were obtained; 1) The age distribution of Henoch-Schonlein purpura had a peak incidence between 7 to 9 year old. And male preponderance was observed with male to female ratio of 2.33 to 1. 2) The most prevalent season for the initial presentation of Henoch-Schonlein purpura was in fall: in 10 cases (50%). 3) The frequency of each type of clinical manifestations showed 20 (100%), 20 (100%), 18 (90%), 8(40%) cases for skin, gastrointestinal, joint and renal manifestation respectively in order of frequency. 4) The common previous illness were URI, 40 cases (50%) and allergy, 2 cases (10%). 5) The onset time of skin manifestation from admission were 1 to 4 days (75%0, 5 to 8 days (15%), 9 to 12 days (10%) explolaparotomies were done the last 2 cases. 6) In all cases, X-ray study (100%), abdominal sono (50%), Meckels scan and colon study (5%) respectively were done. 7) Hematologically leukocytosis over 10,000/mm3 was observed in 80% of cases and increase in ESR over 20 mm/hr in 65% of cases. Coagulation studies, immunologic and complement level revealed the result within normal range in most of the cases. 8) Among 8 cases with renal involvement, all cases had both hematuria and proteinuria. 9) Most cases were recovered within 4 weeks but in 4 cases, renal biopsies were done because of relapse. The results were Meadow classification grade I (1 case), II (1 case), IVa (2 cases). After renal biopsy, steroid pulse therapy was started.
Abdomen, Acute*
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Age Distribution
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Biopsy
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Child
;
Classification
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Colon
;
Complement System Proteins
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Female
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Hematuria
;
Humans
;
Hypersensitivity
;
Incidence
;
Joints
;
Leukocytosis
;
Male
;
Proteinuria
;
Purpura, Schoenlein-Henoch*
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Recurrence
;
Reference Values
;
Seasons
;
Skin
;
Skin Manifestations
4.Subtrochanteric Femoral Fracture during Trochanteric Nailing for the Treatment of Femoral Shaft Fracture.
Ho Hyun YUN ; Chi Hun OH ; Ju Won YI
Clinics in Orthopedic Surgery 2013;5(3):230-234
We report on three cases of subtrochanteric femoral fractures during trochanteric intramedullary nailing for the treatment of femoral shaft fractures. Trochanteric intramedullary nails, which have a proximal lateral bend, are specifically designed for trochanteric insertion. When combined with the modified insertion technique, trochanteric intramedullary nails reduce iatrogenic fracture comminution and varus malalignment. We herein describe technical aspects of trochanteric intramedullary nailing for femoral shaft fractures to improve its application and prevent implant-derived complications.
Adult
;
Aged
;
Female
;
Femoral Fractures/radiography/*surgery
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Fracture Fixation, Internal/*adverse effects/methods
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Hip Fractures/*etiology/radiography
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Humans
;
Iatrogenic Disease
;
Male
;
Middle Aged
5.Comparison of Diagnostic and Therapeutic Efficacy between Ultrasound Guided Hydrostatic Saline Reduction and Fluoroscopic Barium Reduction in Children with Intussusception.
Chi Hyung PARK ; Ho Seok LEE ; Chong Woo BAE ; Sa Jun CHUNG ; Young Mook CHOI ; Sun Wha LEE ; Yup YUN
Journal of the Korean Pediatric Society 1995;38(12):1664-1670
No abstract available.
Barium*
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Child*
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Humans
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Intussusception*
;
Ultrasonography*
6.Clinical outcome of high-dose-rate interstitial brachytherapy in patients with oral cavity cancer.
Sung Uk LEE ; Kwan Ho CHO ; Sung Ho MOON ; Sung Weon CHOI ; Joo Yong PARK ; Tak YUN ; Sang Hyun LEE ; Young Kyung LIM ; Chi Young JEONG
Radiation Oncology Journal 2014;32(4):238-246
PURPOSE: To evaluate the clinical outcome of high-dose-rate (HDR) interstitial brachytherapy (IBT) in patients with oral cavity cancer. MATERIALS AND METHODS: Sixteen patients with oral cavity cancer treated with HDR remote-control afterloading brachytherapy using 192Ir between 2001 and 2013 were analyzed retrospectively. Brachytherapy was administered in 11 patients as the primary treatment and in five patients as salvage treatment for recurrence after the initial surgery. In 12 patients, external beam radiotherapy (50-55 Gy/25 fractions) was combined with IBT of 21 Gy/7 fractions. In addition, IBT was administered as the sole treatment in three patients with a total dose of 50 Gy/10 fractions and as postoperative adjuvant treatment in one patient with a total of 35 Gy/7 fractions. RESULTS: The 5-year overall survival of the entire group was 70%. The actuarial local control rate after 3 years was 84%. All five recurrent cases after initial surgery were successfully salvaged using IBT +/- external beam radiotherapy. Two patients developed local recurrence at 3 and 5 months, respectively, after IBT. The acute complications were acceptable (< or =grade 2). Three patients developed major late complications, such as radio-osteonecrosis, in which one patient was treated by conservative therapy and two required surgical intervention. CONCLUSION: HDR IBT for oral cavity cancer was effective and acceptable in diverse clinical settings, such as in the cases of primary or salvage treatment.
Brachytherapy*
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Humans
;
Mouth Neoplasms
;
Mouth*
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Radiotherapy
;
Recurrence
;
Retrospective Studies
7.Reattachment of Amputated Auricle using Postauricular Subcutaneous Pocket.
Ju Yun JANG ; Dong Hee KANG ; Chi Ho LEE ; Sang Ah OH
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2009;36(5):660-662
PURPOSE: There are several modalities to reattach the amputated auricle. Although microvascular replantation can achieve the best outcome, it is technically difficult. Conventional composite graft is technically easy, but uniformly unsuccessful. Our successful experience of reattachment using postauricular subcutaneous pocket is presented. METHODS: The amputated tissue was placed in its anatomical position with buried sutures. The amputated part is dermabraded to remove the epidermis and outer layer of dermis(Fig. 1, Center, left). Postauricular skin flap was then raised and the reattached dermabraded ear was buried beneath the flap(Fig. 1, Center, right). Two weeks after the original surgery, the buried ear was removed from its pocket(Fig. 1, Below, left). RESULTS: The ear was reepithelialized spontaneously in 7 days. In 3 months, the reattached ear shows satisfactory appearance without contour deformity(Fig. 1, Below, right). CONCLUSION: This technique provides increase in contact surface between the amputated segment and the surrounding tissues which supply blood, serum, oxygen and nutrients, maximizing the probability of "take". Minimally injured dermis can be healed from spontaneous reepithelialization and provides minimal contour deformity. We have used this non-microsurgical technique with very satisfying outcome.
Amputation, Traumatic
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Congenital Abnormalities
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Dermis
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Ear
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Ear Auricle
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Epidermis
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Oxygen
;
Replantation
;
Skin
;
Sutures
;
Transplants
8.CT Enteroclysis and Intraoperative Endoscopic Polypectomy for Peutz-Jeghers Syndrome with Advanced Rectal Carcinoma: A Case Report.
Sang Ah HAN ; Chi Min PARK ; Seong Hyeon YUN ; Woo Yong LEE ; Ho Kyung CHUN
Journal of the Korean Society of Coloproctology 2007;23(5):381-385
Patients with Peutz-Jeghers syndrome often suffer from complications of polyps, such as intussusception, bowel obstruction, and bleeding. Another major problem of these patients is malignancy through the hamartoma-adenoma-carcinoma sequence. If the complications and the cancer risk of small intestinal polyps are to be reduced, early detection of these polyps and a polypectomy are important. Traditionally, a small bowel series, small bowel enteroclysis, and conventional endoscopy have been used for the proper evaluation, and management of polyps. Recently, several reports showed the advantages of enteroscopy and intraoperative endoscopy for achieving a more complete polypectomy of the small intestine. However, CT enteroclysis, which has been introduced as a reliable, less invasive, and tolerable diagnostic tool for small intestinal disease, may be useful for the evaluation of patients with gastrointestinal polyposis. We report the case of a patient with Peutz-Jeghers syndrome who had small-bowel polyposis and a rectal adenocarcinoma and who underwent preoperative CT enteroclysis and intraoperative endoscopy.
Adenocarcinoma
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Endoscopy
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Hemorrhage
;
Humans
;
Intestinal Diseases
;
Intestinal Polyps
;
Intestine, Small
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Intussusception
;
Peutz-Jeghers Syndrome*
;
Polyps
9.Selective Carotid Shunting Based on Intraoperative Transcranial Doppler Imaging during Carotid Endarterectomy: A Retrospective Single-Center Review.
Jun Woo CHO ; Yun Ho JEON ; Chi Hoon BAE
The Korean Journal of Thoracic and Cardiovascular Surgery 2016;49(1):22-28
BACKGROUND: Carotid endarterectomy (CEA) with selective shunting is the surgical method currently used to treat patients with carotid artery disease. We evaluated the incidence of major postoperative complications in patients who underwent CEA with selective shunting under transcranial Doppler (TCD) at our institution. METHODS: The records of 45 patients who underwent CEA with TCD-based selective shunting under general anesthesia from November 2009 to June 2015 were reviewed. The risk factors for postoperative complications were analyzed using univariate and multivariate analysis. RESULTS: Preoperative atrial fibrillation was observed in three patients. Plaque ulceration was detected in 10 patients (22.2%) by preoperative computed tomography imaging. High-level stenosis was observed in 16 patients (35.5%), and 18 patients had contralateral stenosis. Twenty patients (44.4%) required shunt placement due to reduced TCD flow or a poor temporal window. The 30-day mortality rate was 2.2%. No cases of major stroke were observed in the 30 days after surgery, but four cases of minor stroke were noted. Univariate analysis showed that preoperative atrial fibrillation (odds ratio [OR], 40; p=0.018) and ex-smoker status (OR, 17.5; p=0.021) were statistically significant risk factors for a minor stroke in the 30-day postoperative period. Analogously, multivariate analysis also found that atrial fibrillation (p<0.001) and ex-smoker status (p=0.002) were significant risk factors for a minor stroke in the 30-day postoperative period. No variables were identified as risk factors for 30-day major stroke or death. No wound complications were found, although one (2.2%) of the patients suffered from a hypoglossal nerve injury. CONCLUSION: TCD-based CEA is a safe and reliable method to treat patients with carotid artery disease. Preoperative atrial fibrillation and ex-smoker status were found to increase the postoperative risk of a small embolism leading to a minor neurologic deficit.
Anesthesia, General
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Atrial Fibrillation
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Carotid Artery Diseases
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Constriction, Pathologic
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Embolism
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Endarterectomy, Carotid*
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Humans
;
Hypoglossal Nerve Injuries
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Incidence
;
Mortality
;
Multivariate Analysis
;
Neurologic Manifestations
;
Postoperative Complications
;
Postoperative Period
;
Retrospective Studies*
;
Risk Factors
;
Stroke
;
Ulcer
;
Ultrasonography, Doppler, Transcranial
;
Wounds and Injuries
10.Evaluation method for vinyl chloride exposed workers.
Jung Hwan CHANG ; Chi Nyon KIM ; Yong Ho LEE ; Young Shik YUN ; Young Bong CHO ; Jaehoon ROH
Korean Journal of Aerospace and Environmental Medicine 2000;10(3):247-254
BACKGROUND: This study was conducted to evaluate vinly chloride exposure in vinyl chloride and poly vinyl chloride manufacturing factories. The object of this study was compare two different type of air sampling method that of, NIOSH and OSHA recommended and Investigate quantitative correlation between level of vinyl chloride exposure and urinary thiodiglycolic acid excretion. METHODS: Air sampling was conducted by two method and sampling mediums were located at workers breathing zone in the same location. Sampling mediums were changed in 60 minute interval and sampling pumps were recalibrated at the same time. Urine was collected before and end of shift were stored frozen and determined by GC/FID analysis. RESULTS: In NIOSH method, time weighted average was 3.562 +/- 2.898 ppm and OSHA method time weighted average was 4.051 +/- 3.700 ppm. Concentration of urinary TdGA in before shift was 0.527 +/- 0.828 g/g creatinine and end of shift was 4.190 +/- 7.665 mg/g creatinine. Difference of urinary TdGA between end of shift to before shift was 3.662 +/- 7.865 mg/g creatinine. In NIOSH method, correlation coefficient between 8hour-time weighted average (8hrs-TWA) and urinary concentration of TdGA was r=0.666. and last period vinyl chloride level (6th-TWA) and urinary TdGA concentration was r=0.972. In OSHA method, correlation coefficient between last period vinyl chloride level (6th-TWA) and urinary concentration of TdGA was r=0.976 and this was highest value. CONCLUSION: There was no statistically significant difference in NIOSH method and. OSHA method. A correlation were found between level of vinyl chloride exposure and urinary thiodiglycolic acid excretion. Also, vinyl chloride exposure had significantly effected on the urinary thiodiglycolic acid excretion.
Creatinine
;
National Institute for Occupational Safety and Health (U.S.)
;
Respiration
;
United States Occupational Safety and Health Administration
;
Vinyl Chloride*