1.The effect of GnRH analogue on epidermal growth factor receptor in uterine myoma.
Bo Yoen LEE ; Byung Suk LEE ; Ki Hyun PARK ; Dong Jae CHO ; Cnan Ho SONG ; Woo Ik YANG
Korean Journal of Obstetrics and Gynecology 1993;36(7):1919-1923
No abstract available.
Epidermal Growth Factor*
;
Gonadotropin-Releasing Hormone*
;
Myoma*
;
Receptor, Epidermal Growth Factor*
2.Coronary Intervention of Cardiogenic Shock in Acute Myocardial Infarction.
Jae Woong CHOI ; Chang Sup SONG ; Chin Woo IMM ; Tae Hoon AHN ; In Seog CHOI ; Ik Kyun SHIN ; Young Hoon PARK
Korean Circulation Journal 1996;26(2):449-454
BACKGROUND: Despite improvement of mortality in acute myocardial infarcrtion, high mortality rate associated with cardiogenic shock remains essentially unchanged. We have reviewed our result of coronary intervention in 15 patients and found relative survival advantage. METHODS: Between Sep. 1992 and Aug. 1995, 15 consecutive patients(M. 10, F. 5) with cardiogenic shock in acute myocardial infarction were treated with coronary intervention using ballon PTCA. IABP was inserted in all patients prior to PTCA. RESULTS: 1) Most commonly found infarct related artery was left anterior descending artery(11) followed by right coronary artery(3) and left main coronary artery(1). 2) Successful reperfusion rate was 86.7%(13/15), and in-hospital mortality rate was 26.7%(4/15). 3) In-hospital mortality was higher in elderly patients compared with less than 70yaer old patients(0%(0/11)vs. 75.0%(3/4)(P < 0.05). 4) Mortality rate was lower in single vessel disease than multivessel disease(11.1%(1/9) vs. 50%(3/6) p<0.05). CONCLUSION: Although this study is uncontrolled, the date suggest that urgent coronary intervention for improving coronary perfusion may reduce mortality of acute myocardial infarction complicated by cardiogenic shock, particularly with single vessel disease and young age group.
Aged
;
Arteries
;
Hospital Mortality
;
Humans
;
Mortality
;
Myocardial Infarction*
;
Perfusion
;
Reperfusion
;
Shock, Cardiogenic*
3.Association Between Obstructive Sleep Apnea and Stroke and Contributory Risk Factors
Ho Geol WOO ; Kwang Ik YANG ; Tae-Jin SONG
Journal of Sleep Medicine 2021;18(3):119-126
Obstructive sleep apnea (OSA), a common comorbidity in patients with stroke, has shown increasing prevalence over the past few decades. OSA is an important risk factor for stroke in addition to other well-known contributors, including hypertension, hyperlipidemia, atrial fibrillation, and diabetes mellitus. Moreover, OSA is an independent predictor of neurological outcomes and mortality. The pathological mechanisms underlying the association between OSA and stroke include autonomic dysfunction, hypertension, cardiac arrhythmia, dyslipidemia, impaired glucose tolerance, hypoxia, and inflammation. Continuous positive airway pressure (CPAP) therapy has proven clinical utility in improvement of neurological symptoms in patients with stroke. Findings from a CPAP withdrawal model have shown increased sympathetic activity in OSA with a consequent significant elevation in blood pressure, relevant cerebral hypoxia, and disturbed cardiac repolarization. In this review, we present an overview of the literature that describes an association between OSA and stroke in addition to the vascular risk factors, including hypertension, hyperlipidemia, atrial fibrillation, and diabetes mellitus. This study highlights the importance of early and accurate diagnosis and management of OSA for stroke prevention and care and will benefit physicians in clinical practice.
4.Percutaneous radiofrequency ablation for hepatic metastasis of colorectal cancer: assessment of tumor visibility and the feasibility of the procedure with planning ultrasonography
Jeong Woo BAE ; Min Woo LEE ; Tae Wook KANG ; Kyoung Doo SONG ; Dong Ik CHA ; Ji Hye MIN ; Hyunchul RHIM
Ultrasonography 2022;41(1):189-197
Purpose:
The aim of this study was to assess the incidence and causes of percutaneous radiofrequency ablation (RFA) infeasibility in cases of metastatic colorectal cancer and to evaluate factors affecting the invisibility of the tumor on planning ultrasonography (US).
Methods:
This study screened 386 patients who underwent planning US using fusion imaging and/or contrast-enhanced US for percutaneous RFA for suspected metastatic colorectal cancer between January 2013 and December 2020, from whom 136 patients with a single hepatic metastasis from colorectal cancer measuring <3 cm were included. The factors related to the infeasibility of percutaneous RFA were investigated. Univariate and multivariate analyses were performed to assess the factors associated with tumor invisibility on planning US.
Results:
Among the 136 patients, percutaneous RFA was considered infeasible in 24.3% (33/136) due to a high risk of the heat-sink effect caused by the abutment of a large vessel (n=12), an inconspicuous tumor on planning US (n=11), a high risk of collateral thermal damage to an adjacent organ (n=8), and the absence of a safe electrode path (n=2). In univariate and multivariate analyses, tumor size was a statistically significant factor affecting invisibility on planning US (P=0.003 and P=0.018, respectively).
Conclusion
Percutaneous RFA was infeasible in approximately one-fourth of patients with metastatic colorectal cancer. The reason for the infeasibility was mainly an unfavorable tumor location and invisibility on planning US. Small tumor size was the sole significant factor affecting the invisibility of hepatic metastases on planning US.
5.The Relationship between Facial Fractures and Radiologically-proven Cranial Injuries.
Jin Woo SONG ; Ik Joon JO ; Sang Kook HAN ; Yeon Kwon JEONG
Journal of the Korean Society of Traumatology 2009;22(1):18-23
PURPOSE: In this study, we retrospectively investigated the medical records of patients with facial fractures and suspected cranial injuries in order to determine if there was any relationship between various facial fracture patterns and cranial injuries. METHODS: Medical records were reviewed to identify patients diagnosed with facial fractures who underwent cranial computed tomography (CT) scans. Records were reviewed for gender, age, injury mechanism, facial fracture pattern, and presence or absence of cranial injuries. Facial fracture patterns were classified as isolated fractures (tripod, zygomatic arch, maxilla, orbit, and mandible), combined fractures, or total fractures. Cranial injuries included skull fractures, traumatic subarachnoid hemorrhages, subdural hemorrhages, epidural hemorrhages, and contusional hemorrhages. All cranial injuries were established by using cranial CT scans, and these kinds of cranial injuries were defined radiologically-proven cranial injuries (RPCIs). We evaluated the relationship between each pattern of facial fractures and the incidence of RPCIs. RESULTS: Of 132 eligible patients with facial fractures who underwent cranial CT scans, a total of 27 (20.5%) patients had RPCIs associated with facial fractures. Falls and slips were the most common causes of the fractures (31.8%), followed by assaults and motor vehicle accidents (MVAs). One hundred one (76.5%) patients had isolated facial fractures, and 31 (23.5%) patients had combined facial fractures. Fractures were found most commonly in the orbital and maxillary bones. Patients with isolated maxillary fractures had a lower incidence of RPCIs than those with total mandibular fractures. RPCIs frequently accompanied combined facial fractures. CONCLUSION: Combined facial fractures had a significant positive correlation with RPCIs. This means that facial fractures caused by stronger or multidirectional external force are likely to be accompanied by cranial injuries.
Brain Injuries
;
Contusions
;
Hematoma, Subdural
;
Hemorrhage
;
Humans
;
Incidence
;
Mandibular Fractures
;
Maxilla
;
Maxillary Fractures
;
Medical Records
;
Motor Vehicles
;
Orbit
;
Retrospective Studies
;
Skull Fractures
;
Subarachnoid Hemorrhage, Traumatic
;
Zygoma
6.Predicting Factors for Spontaneous Passage of Ureteral Calculi Based on Unenhanced Helical CT Findings.
Dong Woo SONG ; Tae Yung JEONG ; Sang Ik LEE ; Dong Jun KIM
Korean Journal of Urology 2008;49(12):1094-1099
PURPOSE: We performed a prospective study to determine whether unenhanced helical computed tomography(UHCT) findings predict the spontaneous passage of ureteral calculi. MATERIALS AND METHODS: Between April 2006 and June 2007, 175 patients with a single ureteral calculus <1cm in diameter were enrolled in this study, and a UHCT was performed. All of the patients were managed conservatively for 2 weeks. Patients without spontaneous passage of ureteral calculi within 2 weeks were treated by ureteroscopy or extracorporeal shock wave lithotripsy(ESWL). The secondary signs (hydronephrosis, perinephric edema, and the tissue rim sign) were graded on a scale of 0-3. We evaluated whether spontaneous passage of ureteral calculi was associated with stone diameter, location, Hounsfield units(HU), and the degree of secondary signs. RESULTS: Ninety-two patients(52.6%) had spontaneous passage of ureteral calculi. The mean stone diameter was significantly smaller in the passage group than the non-passage group(4.28mm vs. 6.73mm, p=0.002). The rate of spontaneous passage was significantly higher involving distal ureteral calculi(66.1%) than proximal ureteral calculi(30.3%, p<0.001). The incidences of hydronephrosis and perinephric edema were significantly lower in the spontaneous passage group than the non-passage group(8.7% vs. 73.5% and 5.4% vs. 69.9%, respectively). The grades of hydronephrosis and perinephric edema were significantly lower in the spontaneous passage group than the non-passage group(p=0.001). Although there was a tendency toward increasing grades of hydronephrosis and perinephric edema with increasing stone size, the grades were more frequent and severe in the non-passage group in patients with similarly sized stones. CONCLUSIONS: The degree of hydronephrosis and perinephric edema are useful ancillary signs in predicting the likelihood of spontaneous passage of ureteral calculi.
Edema
;
Humans
;
Hydronephrosis
;
Incidence
;
Prospective Studies
;
Shock
;
Tomography, Spiral Computed
;
Ureter
;
Ureteral Calculi
;
Ureteroscopy
7.Amyloid Deposits in Supratentorial Meningiomas: Clinicopathological and Immunohistochemical Study.
Si Woo LEE ; Eun Ik SON ; Dong Sik SONG ; Man Bin YIM ; In Hong KIM ; Kwan Kyu PARK ; Yoo Hun SUH
Journal of Korean Neurosurgical Society 1995;24(7):794-799
Amyloidosis is the definition for a group of diseases that have, in common, the infiltration of one or more tissues by an abnormal protein material-the amyloid substance, which is detected histologically by their green polarization color after Congo red staining. Despite increased interest on basic nature of amyloidosis by recent immunohistochemical or experimental study, the knowledge about the incidence and neurotoxic effect of cerebral amyloid or concomitant occurrence with brain tumor is still inchoate. We examined the incidence and clinico-pathologic characteristics of the patients with amyloid deposits in supratentorial meningiomas. Particularly about their neurotoxic effect to adjacent brain is considered one of the possible cause of seizure in 33 patients who underwent resection surgery for meningioma at the Keimyung University during the past three years. The pathological review and subgrouping by histologic type were done in all 33 specimens with sufficient size of paraffin block, defined by their morphology and polarization color after Congo red staining for diagnosis of amyloid deposits localized in the tumor. Immunohistochemical studies using monoclonal antibodies for amyloid-A protein(AA) and beta-amyloid(A beta) were evaluated to identify subtypes of amyloidosis. The rate of incidence of amyloid deposit in meningioma was 21%, i.e. seven out of thirty three cases. All laboratory findings and clinical studies did not suggest a systemic form. Seizure occurrence was one out of seven cases(14%), which was of no statistical significance. Immunohistochemical study for AA subtype was all negative, but showed all positive for A beta protein around the vessels. Recent reports has also demonstrated that Amyloid precusor protein(APP) and A beta is related in Alzheimer's disease, hereditary cerebral hemorrhage with amyloidosis-Dutch type(HCHWA-D) and amyloid angiopathy. Our research data indicates that the incidence of amyloid deposit is as high as 21% in supratentorial meningiomas. It seems that it is one of the possible cause of seizure. Nonsystemic microdeposits of amyloid and their subtype and it's relationship to neurotoxic effect in meningiomas remain to be confirmed by immunoelectron microscopic examination or immunohistochemical methods.
Alzheimer Disease
;
Amyloid*
;
Amyloidosis
;
Antibodies, Monoclonal
;
Brain
;
Brain Neoplasms
;
Cerebral Hemorrhage
;
Congo Red
;
Diagnosis
;
Humans
;
Incidence
;
Meningioma*
;
Paraffin
;
Plaque, Amyloid*
;
Seizures
8.Diagnostic Usefulness of a Relative Increase in the Ratio Between D-dimer and C-reactive Protein in Pulmonary Thromboembolism Disorder.
Dong Woo LEE ; Min Seob SIM ; Ik Joon JO ; Hyoung Gon SONG
Journal of the Korean Society of Emergency Medicine 2010;21(1):28-34
PURPOSE: In spite of its high sensitivity, the D-dimer test has a limited role in diagnosis of pulmonary thromboembolism (PTE) due to its low specificity. This study was designed to evaluate the diagnostic accuracy of an index for PTE with addition of C-reactive protein (CRP) in patients showing increased D-dimer level. METHODS: We carried out a retrospective study in a tertiary emergency department and enrolled patients who did blood sampling for D-dimer and CRP at the same time among patients suspected of PTE between December 2000 and October 2008. PTE was confirmed by imaging studies, chest computed tomography and angiography. We analyzed D-dimer and CRP levels and correlated them with PTE. RESULTS: A total of 362 patients were enrolled; 67 had PTE. Areas under the curve (AUC) of the Receiver Operating Characteristic (ROC) curve of D-dimer for PTE were smaller than those for a relative increase in the ratio of D-dimer to CRP (RDDCRP). CONCLUSION: The diagnostic accuracy of D-dimer for PTE can be increased by normalizing D-dimer levels to CRP levels.
Angiography
;
C-Reactive Protein
;
Emergencies
;
Fibrin Fibrinogen Degradation Products
;
Humans
;
Pulmonary Embolism
;
Retrospective Studies
;
ROC Curve
;
Sensitivity and Specificity
;
Thorax
9.Vaginal Erosion and Pelvic Abscess after Anterior Intravaginal Slingplasty (IVS) in Patient with Stress Urinary Incontinence.
Dong Woo SONG ; Sang Ik LEE ; Tae Yung JEONG ; Woon Young YUN ; Dong Jun KIM
Journal of the Korean Continence Society 2007;11(2):193-196
Midurethral slings are increasingly popular for the surgical treatment of stress urinary incontinence. They are relatively simple to implant and shorten operating time, hospital stay, and recovery time. Tension free vaginal tape (TVT) and Intravaginal slingplasty (IVS) mesh are both polypropylene mesh. TVT is a type I totally macroporous mesh which, because of pores larger than 75 microns, admits bacteria, macrophages, and fibroblasts into the pores. IVS is a type III mesh with microporous components which admits bacteria but not macrophages. So anterior IVS appear to be more at risk of infection or vaginal erosion than other monofilament mesh. We report our experience with a patient who underwent anterior IVS and developed erosion of the mesh through vagina, creating pelvic abscess.
Abscess*
;
Bacteria
;
Fibroblasts
;
Humans
;
Length of Stay
;
Macrophages
;
Polypropylenes
;
Suburethral Slings
;
Surgical Mesh
;
Urinary Incontinence*
;
Vagina
10.Effect of Adrenal Gland Transplantation on Mechanical Hyperalgesia Induced by Freund's Complete Adjuvant in Rats.
Cheong LEE ; Yoon CHOI ; Yong Ik KIM ; Wan Soo CHOI ; Jin Woo SHIN ; Jun Gol SONG
Korean Journal of Anesthesiology 2001;41(4):484-489
BACKGROUND: The transplantation of adrenal medullary tissue into the CNS of the rat can reduce pain. This results from the release of opioid peptides and catecholamines from the transplanted chromaffin cells. However, whether the adrenal gland transplanted in peripheral tissue can also reduce the pain is not well documented. The purpose of this study was to assess the potential for theadrenal gland implanted into the peripheral tissue of the rat to reduce mechanical hyperalgesia induced by inflammation. METHODS: Fifteen male Wistar rats were divided into three groups; one for implantation of the adrenal gland (AG), another for the kidney (Kd), and the other for a Sham operation (S). Tissues for transplantation were harvested from Sprague-Dawley rats. Two weeks after surgery, inflammation was induced by injecting 0.05 ml of Freund's Complete Adjuvant (FCA) into the dorsum of the rat's hind paw. Mechanical hyperalgesia was assessed using automated Randall-Sellito algesiometer at 6 hr, 1, 2, 3, 7 and 14 days after injecting FCA. RESULTS: Paw withdrawal thresholds against mechanical stimuli were 84.8 6.9%, 112.1 4.6%, 86.3 8.5%, 93.6 7.4%, 90.5 3.8%, 96.9 3.8%, respectively, in the AG group, and 71.3 10.8%, 93.3 11.3%, 79.1 10.3%, 73.7 8.1%, 62.6 6.4%, 77.7 6.2%, respectively, in Kd group, and 67.2 8.3%, 88.1 11.7%, 67.7 8.1%, 69.6 8.2%, 74.5 8.5%, 81.2 6.6%, respectively, in the S group. The AG group showed less pain sensitivity compared with that of the Kd and S groups especially 7 and 14 days after injecting the drug. CONCLUSIONS: This study indicates that the transplanted adrenal gland into the peripheral tissue may provide analgesic effect for a long time after it is transplanted in the rat.
Adrenal Glands*
;
Animals
;
Catecholamines
;
Chromaffin Cells
;
Humans
;
Hyperalgesia*
;
Inflammation
;
Kidney
;
Male
;
Opioid Peptides
;
Rats*
;
Rats, Sprague-Dawley
;
Rats, Wistar