1.Concurrent Intracranial and Extracranial Arterial Aneurysms: Report of Three Cases.
Seung Ryeol SHIN ; Tae Sun KIM ; Jung Kil LEE ; Je Hyuk LEE
Journal of Korean Neurosurgical Society 2005;37(3):223-227
Systemic multiple aneurysms are rare, and an association between intracranial and visceral arterial or abdominal aortic aneurysm in the same patient is a very rare occurrence. We report herein three such cases. In one case, aneurysms of the right internal carotid artery(ICA) and the right middle cerevral arterial bifurcation(MCAB) coexisted with the inferior pancreaticoduodenal arterial pseudoaneurysm and two ileal arterial aneurysms. In another case, the patient had the A-com arterial aneurysm and the right renal arterial aneurysm. And in the other patient, he had the right vertebral artery dissecting aneurysm with the abdominal aortic aneurym. Initially, all patients were referred to our hospital with subarachnoid hemorrhage(SAH), and thereafter first two patients developed visceral arterial aneurysm rupture in the course of hospital stay and in the last patient, the abdominal aortic aneurysm was detected incidentally during carotid angiogram for Guglielmi detachable coil(GDC) embolization of vertebral dissecting aneurym. After thorough review of our cases together with pertinent literatures, we emphasize the possibility of underlying extracranial aneurysms in ruptured intracranial arterial aneurysm patient and it's uncommon but fatal complication.
Aneurysm*
;
Aneurysm, Dissecting
;
Aneurysm, False
;
Aortic Aneurysm, Abdominal
;
Humans
;
Length of Stay
;
Rupture
;
Vertebral Artery
2.Ultrasound-guided Evacuation of Spontaneous Intracerebral Hemorrhage in Basal Ganglia.
Seong Keun PARK ; Jung Kil LEE ; Seung Ryeol SHIN ; Je Hyuk LEE
Journal of Korean Neurosurgical Society 2005;37(3):197-200
OBJECTIVE: Ultrasound can be used in the treatment of large intracerebral hematoma. The authors present our experiences with Ultrasound-guided catheter placement for lysis and drainage of ganglionic hematoma, with emphasis on technical aspects. METHODS: The authors applied real-time ultrasonography for the aspiration of intracerebral hematoma in 6cases. Ultrasound-guided aspiration via a burrhole was performed under local anesthesia. We selected a temporal entry point instead of the frequently used precoronal approach in ganglionic hematoma. A burrhole was made 4 to 6cm posterior from posterior border of frontal process of the zygomatic bone at the level of 4 to 5cm above the external auditory meatus. RESULTS: In all patients, the catheter was placed accurately into the hematoma target. All patients were irrigated with urokinase once to three times a day. The catheter could be removed within two or three days. The mean hematoma volume was reduced from initially 32mL to 5mL in an average of two days. There were no intraoperative complications related to the use of real-time ultrasonography and no postoperative infections were noted. CONCLUSION: Ultrasound allows an easy and precise localization of the hematoma and the distance from the surface to the target can be calculated. Ultrasound-guided catheter placement for fibrinolysis and hematoma drainage is a simple and safe procedure.
Anesthesia, Local
;
Basal Ganglia*
;
Catheters
;
Cerebral Hemorrhage*
;
Drainage
;
Fibrinolysis
;
Ganglion Cysts
;
Hematoma
;
Humans
;
Intraoperative Complications
;
Thrombolytic Therapy
;
Ultrasonography
;
Urokinase-Type Plasminogen Activator
3.Effect of aldosterone on epithelial-to-mesenchymal transition of human peritoneal mesothelial cells.
Mina YU ; Hyun Soo SHIN ; Hyeon Kook LEE ; Dong Ryeol RYU ; Seung Jung KIM ; Kyu Bok CHOI ; Duk Hee KANG
Kidney Research and Clinical Practice 2015;34(2):83-92
BACKGROUND: Peritoneal fibrosis is one of the major causes of technical failure in patients on peritoneal dialysis. Epithelial-to-mesenchymal transition (EMT) of the peritoneum is an early and reversible mechanism of peritoneal fibrosis. Human peritoneal mesothelial cells (HPMCs) have their own renin-angiotensin-aldosterone system (RAAS), however, it has not been investigated whether aldosterone, an end-product of the RAAS, induces EMT in HPMCs, and which mechanisms are responsible for aldosterone-induced EMT. METHODS: EMT of HPMCs was evaluated by comparing the expression of epithelial cell marker, E-cadherin, and mesenchymal cell marker, alpha-smooth muscle actin after stimulation with aldosterone (1-100nM) or spironolactone. Activation of extracellular signal-regulated kinase (ERK)1/2 and p38 mitogen-activated protein kinase (MAPK) and generation of reactive oxygen species (ROS) were assessed by western blotting and 2',7'-dichlorofluororescein diacetate staining, respectively. The effects of MAPK inhibitors or antioxidants (N-acetyl cysteine, apocynin, and rotenone) on aldosterone-induced EMT were evaluated. RESULTS: Aldosterone induced EMT in cultured HPMCs, and spironolactone blocked aldosterone-induced EMT. Aldosterone induced activation of both ERK1/2 and p38 MAPK from 1 hour. Either PD98059, an inhibitor of ERK1/2, or SB20358, an inhibitor of p38 MAPK, attenuated aldosterone-induced EMT. Aldosterone induced ROS in HPMCs from 5 minutes, and antioxidant treatment ameliorated aldosterone-induced EMT. N-acetyl cysteine and apocynin alleviated activation of ERK and p38 MAPK. CONCLUSION: Aldosterone induced EMT in HPMCs by acting through the mineralocorticoid receptor. Aldosterone-induced generation of ROS followed by activation of ERK, and p38 MAPK served as one of the mechanisms of aldosterone-induced EMT of HPMCs.
Actins
;
Aldosterone*
;
Antioxidants
;
Blotting, Western
;
Cadherins
;
Cysteine
;
Epithelial Cells
;
Humans
;
p38 Mitogen-Activated Protein Kinases
;
Peritoneal Dialysis
;
Peritoneal Fibrosis
;
Peritoneum
;
Phosphotransferases
;
Protein Kinases
;
Reactive Oxygen Species
;
Receptors, Mineralocorticoid
;
Renin-Angiotensin System
;
Spironolactone
4.Clip Reinforcement Technique by Circumferential Wrapping with Silastic Sheet for Treatment of Cerebral Aneurysms and Its Follow-Up Outcome.
Seung Ryeol SHIN ; Tae Sun KIM ; Je Hyuk LEE ; Sung Pil JOO ; In Young KIM ; Shin JUNG ; Jung Kil LEE ; Jae Hyoo KIM ; Soo Han KIM ; Sam Suk KANG
Korean Journal of Cerebrovascular Surgery 2004;6(1):38-44
OBJECTIVE: To describe the clip reinforcement technique by circumferential wrapping with silastic sheet for the treatment of unclippable cerebral aneurysms and evaluate its long term follow-up results. METHODS: The nature of 26 unclippable aneurysms were as follow:12 blister-like superior wall aneurysm of internal carotid artery (ICA), 6 microaneurysms (<2 mm), 4 fusiform aneurysms, 4 broad-based aneurysms. After aneurysm and the parent artery are circumferentially wrapped by silastic sheet, aneurysm clips are positioned on the sheet with parallel to the parent artery. The mean follow-up period was 37 months (range, 3-140 months). RESULTS: 25 of 26 patients had a favorable outcome and one patient had a severe disabled due to severe vasospasm at 3 months after operation. Of the 21 patients who underwent immediate angiographic examination, stenosis of parent artery was detected in 6 patients and remnant of aneurysm in 4 patients. Asymptomatic occlusion of parent artery was observed in one patient on follow-up angiographic examination. 22 of 24 patients followed-up for a long time had a favorable outcome and 2 patients had a severe disabled (one patient was due to previous severe disabled and the other was due to thalamic intracerebral hematoma developed during the follow-up period). CONCLUSION: In our study, there was no clip reinforcement technique-related clinical complications such as rebleeding of aneurysm or ischemic event during follow-up period. Clip reinforcement technique by circumferential wrapping with silastic sheet is simple and useful method for the unclippable cerebral aneurysm.
Aneurysm
;
Arteries
;
Carotid Artery, Internal
;
Constriction, Pathologic
;
Follow-Up Studies*
;
Hematoma
;
Humans
;
Intracranial Aneurysm*
;
Parents
5.A Case of Male Pseudohermaphroditism due to 17alpha-Hydroxylase Deficiency.
Keoung Ah PARK ; Youn Kyung CHUNG ; Jung Ryeol LEE ; Young Min CHOI ; Gyoung Hoon LEE ; Hee Seung KIM ; Byung Chul JEE ; Seung Yup KU ; Chang Suk SUH ; Seok Hyun KIM ; Jung Gu KIM ; Shin Yong MOON ; Seong Yeon KIM
Korean Journal of Fertility and Sterility 2006;33(2):133-138
Female phenotype of a 46,XY male may originates from male pseudohermaphroditism due to 17alpha-hydroxylase deficiency. Lack of cortisol increases adrenocorticotropic hormone (ACTH) and mineralocorticoid production, leading to low renin hypertention and hypokalemia. A 41-year-old phenotypic female presented primary amenorrhea and hypertension. In the hormonal profile, the levels of serum estradiol, testosterone, rennin, and cortisol were decreased and ACTH and deoxycorticosterone were increased. Laparoscopic bilateral gonadectomy was performed, and corticosteroid, antihypertensive drugs, and estrogen were administered. We report this case with a brief review of the literatures.
46, XY Disorders of Sex Development*
;
Adrenal Hyperplasia, Congenital
;
Adrenocorticotropic Hormone
;
Adult
;
Amenorrhea
;
Antihypertensive Agents
;
Chymosin
;
Desoxycorticosterone
;
Estradiol
;
Estrogens
;
Female
;
Humans
;
Hydrocortisone
;
Hypertension
;
Hypokalemia
;
Male*
;
Phenotype
;
Renin
;
Testosterone
6.A Case Report of Purple Toe Syndrome Associated with Acute Renal Failure during Warfarin Therapy.
Dong Ryeol RYU ; Jae Hoon LEE ; Hyo Kyoung PARK ; Young Jun CHO ; Jeong Ho CHO ; Sung Kwan HONG ; Shin Wook KANG ; Kyu Hun CHOI ; Seung Yun CHO ; Dae Suk HAN ; Ho Yung LEE
Korean Journal of Medicine 1999;56(2):225-228
"Purple toe" syndrome is an extremely rare complication of warfarin therapy. The occurrence of purple toe syndrome is characterized by a sudden appearance of purplish discoloration of toes and the sides of feet. The skin lesions usually develop 3-8 weeks after beginning anticoagulation. The pathogenesis was not clearly defined but the presence of atherosclerosis in most of patients led to suggest that the mechanism was related to cholesterol emboli from the atherosclerotic plaques and warfarin- induced bleeding into the plaques. These microemboli are commonly associated with irreversible organ dysfunction such as renal failure, distal gangrene, pancreatitis, and multifocal myocardial necrosis. Therefore purple toe syndrome may be considered as a sentinel of cholesterol crystal embolism. Once established, anticoagulation and thrombolysis are contraindicated. Necrosis and gangrenous changes may result in loss of limb and occasional mortality has been reported. We report a case of purple toe syndrome associated with acute renal failure after warfarin therapy with a review of literatures.
Acute Kidney Injury*
;
Atherosclerosis
;
Cholesterol
;
Embolism
;
Embolism, Cholesterol
;
Extremities
;
Foot
;
Gangrene
;
Hemorrhage
;
Humans
;
Mortality
;
Necrosis
;
Pancreatitis
;
Plaque, Atherosclerotic
;
Renal Insufficiency
;
Skin
;
Toes*
;
Warfarin*
7.Effects of Age on in vitro Maturation and Fertilization of Immature Oocytes from Stimulated Cycles in Human IVF-ET Program.
Sang Hoon HAN ; Jung Ryeol LEE ; Hyun Jun KIM ; Jung Hee MOON ; Byung Chul JEE ; Seung Yup KU ; Chang Suk SUH ; Seok Hyun KIM ; Young Min CHOI ; Jung Gu KIM ; Shin Yong MOON
Korean Journal of Fertility and Sterility 2005;32(4):331-336
OBJECTIVE: To investigate the effects of female age on in vitro maturation and fertilization of immature oocytes from controlled ovarian hyperstimulation (COH) in human IVF-ET program. METHOD: A total of 96 immature oocytes (GV & metaphase I) obtained from 40 cycles of IVF-ET (29 patients). The mean age of female patients was 31.8+/-3.1 years. Ovulation was triggered by urinary or recombinant hCG. Immature oocytes were cultured with YS medium containing 30% of patients' human follicular fluids, LH (1 IU/mL), FSH (1 IU/mL) and EGF (10 ng/mL), and then matured oocytes were fertilized by ICSI. In vitro maturation and fertilization of immature oocytes were analyzed according to age of female (< 34 or > or = 34 years). RESULTS: The maturation rate was similar between two groups (68% vs 64%). The fertilization rate of in?vitro-matured oocytes was higher in patients < 34 years old, but there was no statistical significance (64% vs 50%, p=0.347). The fertilization rate of in-vitro-matured oocytes was significantly lower compared with those of in-vivo-matured oocytes in both age groups (64% vs 79%, p=0.035, 50% vs 86%, p=0.007). CONCLUSION: In older female group, fertilization rate of in-vitro-matured oocytes seems to be decreased. Further investigations should be warranted to increase fertilization potential of in-vitro-matured oocytes.
Adult
;
Epidermal Growth Factor
;
Female
;
Fertilization*
;
Follicular Fluid
;
Humans*
;
Metaphase
;
Oocytes*
;
Ovulation
;
Sperm Injections, Intracytoplasmic
8.The pattern of choosing dialysis modality and related mortality outcomes in Korea: a national population-based study.
Hyung Jong KIM ; Jung Tak PARK ; Seung Hyeok HAN ; Tae Hyun YOO ; Hyeong Cheon PARK ; Shin Wook KANG ; Kyoung Hoon KIM ; Dong Ryeol RYU ; Hyunwook KIM
The Korean Journal of Internal Medicine 2017;32(4):699-710
BACKGROUND/AIMS: Since comorbidities are major determinants of modality choice, and also interact with dialysis modality on mortality outcomes, we examined the pattern of modality choice according to comorbidities and then evaluated how such choices affected mortality in incident dialysis patients. METHODS: We analyzed 32,280 incident dialysis patients in Korea. Patterns in initial dialysis choice were assessed by multivariate logistic regression analyses. Multivariate Poisson regression analyses were performed to evaluate the effects of interactions between comorbidities and dialysis modality on mortality and to quantify these interactions using the synergy factor. RESULTS: Prior histories of myocardial infarction (p = 0.031), diabetes (p = 0.001), and congestive heart failure (p = 0.003) were independent factors favoring the initiation with peritoneal dialysis (PD), but were associated with increased mortality with PD. In contrast, a history of cerebrovascular disease and 1-year increase in age favored initiation with hemodialysis (HD) and were related to a survival benefit with HD (p < 0.001, both). While favoring initiation with HD, having Medical Aid (p = 0.001) and male gender (p = 0.047) were related to increased mortality with HD. Furthermore, although the severity of comorbidities did not inf luence dialysis modality choice, mortality in incident PD patients was significantly higher compared to that in HD patients as the severity of comorbidities increased (p for trend < 0.001). CONCLUSIONS: Some comorbidities exerted independent effects on initial choice of dialysis modality, but this choice did not always lead to the best results. Further analyses of the pattern of choosing dialysis modality according to baseline comorbid conditions and related consequent mortality outcomes are needed.
Cerebrovascular Disorders
;
Comorbidity
;
Dialysis*
;
Heart Failure
;
Humans
;
Korea*
;
Logistic Models
;
Male
;
Mortality*
;
Myocardial Infarction
;
Peritoneal Dialysis
;
Renal Dialysis
9.Comparison between Human Follicular Fluid and SpermGrad for Sperm Preparation in Asthenozoospermia.
Youn Kyung CHUNG ; Jung Ryeol LEE ; Jeong Hee MOON ; Hyun Jun KIM ; Sang Hoon HAN ; Byung Chul JEE ; Seung Yup KU ; Chang Suk SUH ; Seok Hyun KIM ; Young Min CHOI ; Jung Gu KIM ; Shin Yong MOON
Korean Journal of Fertility and Sterility 2006;33(1):53-60
OBJECTIVE: We tested the usefulness of swim-down technique using human follicular fluid (hFF) in sperm preparation. METHODS: Semen samples were obtained from twelve male partners showing asthenozoospermia (sperm motility < 50%) at the time of routine andrologic evaluation in Seoul National University Bundang Hospital. After dividing into two aliquots, each samples were processed either by swim-down using 100% hFF or density gradient using SpermGrad. Sperm quality was assessed by computer-assisted semen analyzer (CASA). RESULTS: Motility, Rapid motility, VCL (curvilinear velocity), ALH (amplitude of lateral head displacement), and hyperactivated sperms were significantly increased, and LIN (mean linearity) was decreased significantly after sperm preparation in both groups. Motility was significantly higher after swim-down using 100% hFF when compared with density gradient using SpermGrad (81.2+/-4.7 vs. 67.6+/-2.3, p=0.02). The other parameters assessed by CASA were not different between the two methods. CONCLUSION: Swim-down method with 100% hFF may be a useful method in preparation of sperm from asthenozoospermia.
Asthenozoospermia*
;
Female
;
Follicular Fluid*
;
Head
;
Humans*
;
Male
;
Semen
;
Seoul
;
Spermatozoa*
10.Left Ventricular Dyssynchrony in Patients Showing Diastolic Dysfunction without Overt Symptoms of Heart Failure.
Jae Hoon KIM ; Hee Sang JANG ; Byung Seok BAE ; Seung Min SHIN ; Ki Ju KIM ; Jung Gil PARK ; Hyun Jae KANG ; Bong Ryeol LEE ; Byung Chun JUNG
The Korean Journal of Internal Medicine 2010;25(3):246-252
BACKGROUND/AIMS: Few studies have assessed left ventricular (LV) dyssynchrony in cases of diastolic dysfunction that do not include overt symptoms of heart failure. We hypothesized that systolic or diastolic dyssynchrony involves unique features with respect to the degree of diastolic impairment in isolated diastolic dysfunction. METHODS: We examined 105 subjects with no history of overt symptoms of heart failure and a left ventricular ejection fraction > 50% for mechanical dyssynchrony using tissue Doppler imaging. RESULTS: In terms of longitudinal dyssynchrony, four cases showed (6.3%) LV intraventricular systolic dyssynchrony (SDS(LV)), whereas none had LV intraventricular diastolic dyssynchrony (DDS(LV)) or co-existing systolic dyssynchrony. Radial dyssynchrony (RD) was found in six cases (9.4%). After adjusting for age, SDS(LV) and DDS(LV) were found to be significantly related to increases in the E/E' ratio (r = 0.405 and p < 0.001 vs. r = 0.216 and p = 0.045, respectively). RD at the base and apex was also significantly related to increases in E/E' (r = 0.298 and p = 0.002 vs. r = 0.196 and p = 0.045, respectively). CONCLUSIONS: Systolic and diastolic dyssynchrony in subjects with isolated diastolic dysfunction but without overt symptoms of heart failure was not as common as in patients with diastolic heart failure; however, the systolic and diastolic intraventricular time delay increased with increases in the E/E' ratio, an indicator of diastolic dysfunction.
Adult
;
Aged
;
Case-Control Studies
;
Diastole
;
Echocardiography, Doppler
;
Female
;
Heart Failure, Diastolic/*physiopathology/ultrasonography
;
Humans
;
Male
;
Middle Aged
;
Systole
;
Ventricular Dysfunction, Left/*physiopathology/ultrasonography