1.A Comparison of Covered Expandable Metal Stent and Uncovered Expandable Metal Stent for the Management of Distal Malignant Biliary Obstruction.
Won Jae YOON ; Kwang Hyuck LEE ; Jun Kyu LEE ; Ji Kon RYU ; Yong Tae KIM ; Woo Jin LEE ; Yong Bum YOON
Korean Journal of Gastrointestinal Endoscopy 2008;36(2):124-124
2.The Risk Factors Influencing Postoperative Mortality in the Patients with Ruptured Abdominal Aortic Aneurysm.
Min Jeong CHO ; Hyuck Jin YOON ; Jin Young PARK ; Seung HUH ; Young Wook KIM
Journal of the Korean Society for Vascular Surgery 2004;20(2):208-213
PURPOSE: The mortality rate for elective repair of abdominal aortic aneurysm (AAA) has gradually decreased to approximately 5%. However the mortality rate for ruptured AAA (RAAA) has not changed significantly and continues to be 45% to 50%, and the mortality rate exceeds 90% if deaths occurring before patients reach the hospital are included in the statistics. The aim of this study was to determine what factors are associated with operative death in patients with RAAA. METHOD: For January 1997 and December 2003, 35 patients underwent surgery for RAAA. The factors of the preoperative status included age, gender, history of loss of consciousness, mental change, hemodynamics, the serum creatinine level and the patients' comorbidities were analyzed. As for the aneurysmal factors, the site, etiology, maximal diameter and rupture status of the aneurysms were evaluated. Finally operative factors including the operation time and status, surgeon, type of grafting, renal dysfunction during operation and the amount of blood transfusion were also analyzed. As the statistical method, Fischer's exact test and multi-step logistic regression method were used. RESULT: The 30-day mortality rate was 17.1% (6/35). By univariate analysis, mental change, increased preoperative serum creatinine level (>2 mg/dl), intraoperative renal dysfunction, prolonged intraoperative hypotension over 30 minutes, the amount of transfusion, diameter of aneurysms and surgeon's experience were statistically significant. On multivariate analysis, the amount of transfusion and intraoperative renal dysfunction were defined as the significant risk factors. CONCLUSION: To reduce the operative mortality of RAAA, preventing massive bleeding and the subsequent acute renal failure by early operative control of bleeding, fluid resuscitation and maintenance of blood pressure are important.
Acute Kidney Injury
;
Aneurysm
;
Aortic Aneurysm, Abdominal*
;
Blood Pressure
;
Blood Transfusion
;
Comorbidity
;
Creatinine
;
Hemodynamics
;
Hemorrhage
;
Humans
;
Hypotension
;
Logistic Models
;
Mortality*
;
Multivariate Analysis
;
Resuscitation
;
Risk Factors*
;
Rupture
;
Transplants
;
Unconsciousness
3.Prevalence of Vesicoureteral Reflux According to the Timing of Voiding Cystourethrography in Infantile Urinary Tract Infection.
Yoon Su OH ; Min Jeong CHOI ; Se Jin PARK ; Jae Seung LEE ; Jae Il SHIN ; Kee Hyuck KIM
Journal of the Korean Society of Pediatric Nephrology 2011;15(2):163-171
PURPOSE: To evaluate the prevalence of vesicoureteral reflux (VUR) according to the timing of voiding cystourethrography (VCUG) in infantile urinary tract infection (UTI). METHODS: The data of 134 infants (1-12 months) with renal cortical defect in 99mTc-2, 3-dimercaptosuccinic acid (99mTc-DMSA) scan with a diagnosis of UTI in two hospitals from 2000 to 2010 were retrospectively analyzed. The VCUG was performed after 2 weeks from the diagnosis of UTI in Group I (n=68), and the VCUG was performed within 2 weeks from the diagnosis of UTI in Group II (n=66). RESULTS: There were no significant differences between the two groups in the duration of fever, white blood cell count, C-reactive protein levels, and abnormalities in ultrasonography (P>0.05). There was no significant difference between the two groups in the prevelence of VUR, bilateral VUR, and severe VUR. VCUG-induced UTI was detected 16 (23.5%) of patients in whom the procedure was performed 2 weeks after the diagnosis, and none of VCUG-induced UTI occurred in those in whom the procedure was performed 2 weeks within the diagnosis. CONCLUSION: We conclude that the prevalence of VUR according to the timing of VCUG did not differ between the two groups in infantile UTI with renal cortical defect in DMSA scan. We also found that performing VCUG with antibiotics can decrease risk of VCUG-induced UTI.
Anti-Bacterial Agents
;
C-Reactive Protein
;
Fever
;
Humans
;
Infant
;
Leukocyte Count
;
Prevalence
;
Retrospective Studies
;
Succimer
;
Urinary Tract
;
Urinary Tract Infections
;
Vesico-Ureteral Reflux
4.Postoperative Course and Recurrence of Chronic Subdural Hematoma.
Hyuck Jin OH ; Kyeong Seok LEE ; Jae Jun SHIM ; Seok Mann YOON ; Il Gyu YUN ; Hack Gun BAE
Journal of Korean Neurosurgical Society 2010;48(6):518-523
OBJECTIVE: Chronic subdural hematoma (CSDH) is known to have a significant recurrence rate. There are different criteria defining the recurrence of CSDH. We evaluated the postoperative course of CSDH and tried to propose the reasonable criteria of recurrence. METHODS: We retrospectively examined the medical records and pre- and postoperative CT scans of 149 consecutive patients who underwent surgery from January 2005 to December 2009. Diagnosis was confirmed by CT scanning or MRI. The postoperative courses were either resolved or recurrent. The resolved CSDH was one of the three types; early resolution, delayed resolution, or late resolution. The recurrent CSDH was one of the four types; recurrence without resolution, early recurrence after resolution, late recurrence after resolution, or recurrent-and-resolved type. RESULTS: The CSDH was resolved within 30 days after surgery in 58 (39%) patients, between 1 to 3 months in 62 (42%), and after 3 months in 11 (7%) patients. The CSDH was recurred in 18 (12%) patients. Late resolution or recurrence was more common in the aged. The recurrent hematoma was seen on the same side in 11 patients, on the different side in 7 patients. Recurrence was significantly more common in the thick hematomas. CONCLUSION: For a working criteria of the recurrence of CSDH, we propose the early recurrence as return of symptoms or reaccumulation of the hematoma after a surgery within 3 months regardless of the location, amount or repeated operations. The late recurrence can be defined as reappearance or enlargement of a liquefied hematoma within the cranial cavity surrounded by the membranes or persistent CSDH beyond 3 months after surgery.
Aged
;
Craniocerebral Trauma
;
Hematoma
;
Hematoma, Subdural, Chronic
;
Humans
;
Medical Records
;
Membranes
;
Recurrence
;
Retrospective Studies
;
Risk Factors
5.Neuromyelitis Optica Mimicking Intramedullary Tumor.
Si Hyuck OH ; Kyeong Wook YOON ; Young Jin KIM ; Sang Koo LEE
Journal of Korean Neurosurgical Society 2013;53(5):316-319
Neuromyelitis optica (NMO) is considered to be a rarer autoimmune disease than multiple sclerosis. It is very difficult to make a diagnosis of MNO for doctors who are not familiar with its clinical features and diagnostic criteria. We report a case of a young female patient who had been suffering motor weakness and radiating pain in both upper extremities. Cervical MRI showed tumorous lesion in spinal cord and performed surgery to remove lesion. We could not find a tumor mass in operation field and final diagnosis was NMO. NMO must be included in the differential diagnosis of lesions to rescue the patient from invasive surgical interventions. More specific diagnostic tools may be necessary for early diagnosis and proper treatment.
Autoimmune Diseases
;
Diagnosis, Differential
;
Early Diagnosis
;
Female
;
Humans
;
Multiple Sclerosis
;
Neuromyelitis Optica
;
Spinal Cord
;
Stress, Psychological
;
Upper Extremity
6.Risk Factors of New Adjacent Compression Fracture after Percutaneous Vertebroplasty: Effectiveness of Bisphosphonate in Osteoporotic or Osteopenic Elderly Patients.
Dae Hyun SEO ; Si Hyuck OH ; Kyeong Wook YOON ; Jung Ho KO ; Young Jin KIM ; Jee Young LEE
Korean Journal of Neurotrauma 2014;10(2):86-91
OBJECTIVE: The purpose of this study is to investigate the incidence of new compression and to analyze factors that influence the fractures in adjacent levels after percutaneous vertebroplasty (PVP). METHODS: This retrospective study examined 206 patients who had undergone PVP for single level osteoporotic or osteopenic compression fractures during the last seven years in our department. After PVP, the patients were observed for at least over one year, and 29 patients showed new additional compression fractures in adjacent levels. One hundred seventy seven patients who did not show additional compression fractures were analyzed as the control group. Statistical comparisons were performed between the groups, in terms of age, gender, bone mineral density, whether bisphosphonate (BPP) was treated, preoperative kyphosis, preoperative wedge angle, change in wedge angle, amount of bone cement, existence of intradiscal bone cement leakage, and initial fracture levels. RESULTS: The statistically significant factors that influence new compression fractures in adjacent levels after PVP were as follows: being female, initial thoracolumbar junction fracture, preoperative large kyphotic, preoperative large wedge angle, change in wedge angle, administration of BPP in osteopenia group, and intradiscal cement leakage. CONCLUSION: This study identified many factors that influence newly developed compression fractures in adjacent levels after PVP. Interestingly, the administration of BPP in osteopenia group had positive influence on new fractures in this study. Therefore, we recommend early administration of BPP to patients with osteopenia.
Aged*
;
Bone Density
;
Bone Diseases, Metabolic
;
Diphosphonates
;
Female
;
Fractures, Compression*
;
Humans
;
Incidence
;
Kyphosis
;
Retrospective Studies
;
Risk Factors*
;
Spinal Fractures
;
Vertebroplasty*
7.A case of bleomycin-induced scleroderma.
Kab Hyeong KIM ; Tae Jin YOON ; Chee Won OH ; Gyung Hyuck KO ; Tae Heung KIM
Journal of Korean Medical Science 1996;11(5):454-456
The association of exposure to bleomycin with the development of scleroderma-like cutaneous abnormalities has been reported. We experienced a case of scleroderma involving the hands, feet, and forearms after bleomycin chemotherapy. The present report supports the possible causal relation of bleomycin with scleroderma. Regarding the widespread use of bleomycin, this complication is thought to be under appreciated.
Bleomycin/*pharmacology
;
Case Report
;
Foot Dermatoses/*chemically induced/pathology/therapy
;
Hand Dermatoses/*chemically induced/pathology/therapy
;
Human
;
Male
;
Middle Age
;
Scleroderma, Circumscribed/*chemically induced/pathology/therapy
8.ACDF Using the Solis Cage with Iliac Bone Graft in Single Level: Clinical and Radiological Outcomes in Average 36 months Follow-up.
Si Hyuck OH ; Kyeong Wook YOON ; Young Jin KIM ; Sang Koo LEE
Korean Journal of Spine 2013;10(2):72-77
OBJECTIVE: To evaluate the utility of anterior cervical discectomy and fusion (ACDF) with polyetheretherketone (PEEK) cage and autograft through long term(average 36 months) follow-up. METHODS: Thirty selected patients (male:20/female:10) who suffered from cervical radiculopathy, myelopathy or radiculomyelopathy underwent a single level ACDF with PEEK cage and autograft from iliac crest from March 2006 to July 2008 in single institute. We followed patients for an average 36.4+/-8.1 months (ranged from 23 to 49 months). The Japanese Orthopedic Association (JOA) score for evaluation of myelopathy and visual analogue scale (VAS) for radiating pain was used to estimate postoperative clinical outcome. Plain x-ray on true lateral standing flexion, extension and neutral position view and 3D CT scan were used every 6 months after surgery during follow-up period. RESULTS: The mean VAS and JOA scoring improved significantly after the surgery and radiological fusion rate was accomplished by 100% 36 months after the surgery. We had no complication related with the surgery except one case of osteomyelitis. There was one case of Grade I fusion, four cases of grade II, and 25 cases of grade III by radiologic evaluation. CONCLUSION: This long term follow-up study for ACDF with PEEK cage shows that this surgical method is comparable with other anterior cervical fusion methods in terms of clinical outcomes and radiologic fusion rate.
Asian Continental Ancestry Group
;
Biocompatible Materials
;
Dental Cements
;
Diskectomy
;
Follow-Up Studies
;
Humans
;
Ketones
;
Orthopedics
;
Osteomyelitis
;
Polyethylene Glycols
;
Radiculopathy
;
Spinal Cord Diseases
;
Transplants
9.Evaluation of Heart-type Fatty Acidbinding Protein in Early Diagnosis of Acute Myocardial Infarction
Mi-Gil MOON ; Chang-Hwan YOON ; Kyunghoon LEE ; Si-Hyuck KANG ; Tae-Jin YOUN ; In-Ho CHAE
Journal of Korean Medical Science 2021;36(8):e61-
Background:
Although electrocardiography and cardiac troponin play important roles in the diagnosis of acute coronary syndrome (ACS), there remain unmet clinical needs. Heart-type fatty acid-binding protein (H-FABP) has been identified as an early diagnostic marker of acute myocardial infarction (AMI). In this study, we examined the diagnostic and prognostic value of H-FABP in patients suspected with ACS.
Methods:
We conducted an observational single-center cohort study, including 89 adults aged 30 years or older, who presented to the emergency room (ER) within 24 hours after the onset of chest pain and/or dyspnea. We performed laboratory analysis and point-of-care testing (POCT) for cardiac markers, including H-FABP, troponin I, and creatine kinasemyocardial band. We also evaluated the correlation between cardiac markers and left ventricular (LV) dysfunction and extent of coronary artery disease (CAD).
Results:
In patients presented to ER within 4 hours after symptom onset (n = 49), the diagnostic accuracy of H-FABP for AMI, as quantified by the area under the receiver operating characteristic curve, was higher (0.738; 95% confidence interval [CI], 0.591–0.885) than other cardiac markers. In POCT, the diagnostic accuracy of H-FABP (56%; 95% CI, 45–67) was significantly higher than other cardiac markers. H-FABP was correlated with not extent of CAD but post-AMI LV dysfunction.
Conclusion
H-FABP is a useful cardiac marker for the early diagnosis of AMI and prediction of myocardia injury. Difference in the circulatory release timeline of cardiac markers could explain its utility in early-stage of myocardial injury.
10.Evaluation of Heart-type Fatty Acidbinding Protein in Early Diagnosis of Acute Myocardial Infarction
Mi-Gil MOON ; Chang-Hwan YOON ; Kyunghoon LEE ; Si-Hyuck KANG ; Tae-Jin YOUN ; In-Ho CHAE
Journal of Korean Medical Science 2021;36(8):e61-
Background:
Although electrocardiography and cardiac troponin play important roles in the diagnosis of acute coronary syndrome (ACS), there remain unmet clinical needs. Heart-type fatty acid-binding protein (H-FABP) has been identified as an early diagnostic marker of acute myocardial infarction (AMI). In this study, we examined the diagnostic and prognostic value of H-FABP in patients suspected with ACS.
Methods:
We conducted an observational single-center cohort study, including 89 adults aged 30 years or older, who presented to the emergency room (ER) within 24 hours after the onset of chest pain and/or dyspnea. We performed laboratory analysis and point-of-care testing (POCT) for cardiac markers, including H-FABP, troponin I, and creatine kinasemyocardial band. We also evaluated the correlation between cardiac markers and left ventricular (LV) dysfunction and extent of coronary artery disease (CAD).
Results:
In patients presented to ER within 4 hours after symptom onset (n = 49), the diagnostic accuracy of H-FABP for AMI, as quantified by the area under the receiver operating characteristic curve, was higher (0.738; 95% confidence interval [CI], 0.591–0.885) than other cardiac markers. In POCT, the diagnostic accuracy of H-FABP (56%; 95% CI, 45–67) was significantly higher than other cardiac markers. H-FABP was correlated with not extent of CAD but post-AMI LV dysfunction.
Conclusion
H-FABP is a useful cardiac marker for the early diagnosis of AMI and prediction of myocardia injury. Difference in the circulatory release timeline of cardiac markers could explain its utility in early-stage of myocardial injury.