1.Switch to Olanzapine from Clozapine or Risperidone and 12-months Follow Up.
Bang Hyun CHO ; In Kwa JUNG ; Jong Woo PAIK
Journal of the Korean Society of Biological Psychiatry 2001;8(1):140-146
In clinical setting, treatment-refractoriness, medication induced tardive dyskinesia and amenorrhea in chronic schizophrenia are frequently problematic. However, there are few guideline solving these problem available to clinicians. The goal of this study was collecting clinical data on clinical effeciveness and predictors of response of switching to olanzapine. We attempted to switch to olanzapine from risperidone and clozapine in chronic 31(risperidone 17, clozapine 14) schizophrenia and schizoaffective disorder patients suffering from sustained symptoms, weekly blood monitoring, medication induced tardive dyskinesia and amenorrhea. Previous antipsychotics dosage was gradually decreased for 2 or 3 weeks, at the same time olanzapine dosage was gradually increased. At baseline, after 1 week, after 2 weeks and after 4 weeks we checked Brief Psychiatric Rating Scale, Clinical Global Impression Scale, Sympson-Angus Rating Scale, Barnes Akathisia Rating Scale and Followed up after 12 months. Successful switch after 4 weeks was achieved in 25 patients(clozapine 9(64.2%), risperidone 16(94.1%). Overall, mean BPRS and CGI scores increased significantly. Successful maintenance after 12 months was achieved in 17 patients(clozapine 5(35.7%), risperidone 2(70.5%). Overall, mean BPRS and CGI scores increased significantly too. Switching to olanzapine from other atypical antipsychotics is recommendable in chronic schizophrenia with treatment refreactoriness and drug induced side effect.
Amenorrhea
;
Antipsychotic Agents
;
Brief Psychiatric Rating Scale
;
Clozapine*
;
Female
;
Follow-Up Studies*
;
Humans
;
Movement Disorders
;
Psychomotor Agitation
;
Psychotic Disorders
;
Risperidone*
;
Schizophrenia
3.Risk Factors of Gallbladder Polyp.
The Korean Journal of Gastroenterology 2015;66(5):249-250
No abstract available.
4.How to Improve Diagnostic Accuracy in Suspicious Ampullary Lesions?.
Woo Hyun PAIK ; Jin Hyeok HWANG
Clinical Endoscopy 2015;48(3):185-186
No abstract available.
5.How to Improve Diagnostic Accuracy in Suspicious Ampullary Lesions?.
Woo Hyun PAIK ; Jin Hyeok HWANG
Clinical Endoscopy 2015;48(3):185-186
No abstract available.
6.Analysis of Retinal Capillary Using Optical Coherence Tomographic Angiography of Unilateral Normal Tension Glaucoma
Chang Woo CHO ; Woo Hyun JUNG ; Jung Lim KIM
Journal of the Korean Ophthalmological Society 2021;62(10):1397-1406
Purpose:
The purpose of this study was to analyze retinal capillary parameters using optical coherence tomography angiography (OCTA) of the affected eye and the fellow eye of unilateral normal tension glaucoma (NTG) patients and compare the findings with eyes from a normal control group.
Methods:
A retrospective cross-sectional study was carried out on patients diagnosed with unilateral NTG (24 affected eyes and 24 fellow eyes each) and normal individuals (29 eyes, the control group). OCTA was used to measure the vascular density (VD) and perfusion density (PD) of the macular area and the peripapillary area.
Results:
In the superficial capillary plexus, the fellow eye group of unilateral NTG patients showed a decrease in VD of the inner-inferior and PD of the inner-inferior and outer-average peripapillary area, compared with the normal control group (p = 0.008, p < 0.001, and p = 0.001). In the affected NTG eye group, the VD (p = 0.014, p = 0.011, p < 0.001, p < 0.001, and p < 0.001) and PD (p = 0.017, p = 0.023, p < 0.001, p = 0.001, and p < 0.001) of the total, inner-average, inner-inferior, and outer-inferior peripapillary area, and the outer-inferior macular area decreased compared to the fellow eye and normal control group, as well as the VD of the outer-average peripapillary area (p = 0.010). The PD of the outer-average peripapillary area (p = 0.003); the VD (p = 0.041, p = 0.008, p = 0.006) and the PD (p = 0.013, p < 0.001, p = 0.001) of the total, inner-inferior, and outer-average macular area; and the PD of the outer-temporal macular area (p = 0.003) were lower than the normal control group. There was no difference in the VD or PD obtained from the deep capillary plexus of the macular area among the groups.
Conclusions
It is useful to observe retinal capillary parameters using OCTA for patients with unilateral NTG.
7.Objective Assessment of Surgical Restaging after Concurrent Chemoradiation for Locally Advanced Pancreatic Cancer.
Woo Hyun PAIK ; Sang Hyub LEE ; Yong Tae KIM ; Jin Myung PARK ; Byeong Jun SONG ; Ji Kon RYU
Journal of Korean Medical Science 2015;30(7):917-923
The role of neoadjuvant chemoradiation therapy in locally advanced pancreatic cancer (LAPC) is still controversial. The aim of this study was to evaluate surgical downstaging after concurrent chemoradiation therapy (CCRT) for LAPC by measuring the objective changes after treatment. From January 2003 through July 2011, 54 patients with LAPC underwent neoadjuvant CCRT. Computed tomography findings of the tumor size, including major vessel invasion, were analyzed before and after CCRT. Among the total recruited patients, 14 had borderline resectable malignancy and another 40 were unresectable before CCRT. After CCRT, a partial response was achieved in four patients. Stable disease and further disease progression were achieved in 36 and 14 patients, respectively. Tumor size showed no significant difference before and after CCRT (3.6 +/- 1.1 vs. 3.6 +/- 1.0 cm, P = 0.61). Vessel invasion showed improvement in two patients, while 13 other patients showed further tumor progression. Thirty-nine patients with unresectable malignancy and 11 patients with borderline resectable malignancy at time of initial diagnosis remained unchanged after CCRT. Four patients with borderline pancreatic malignancy progressed to an unresectable stage, whereas one unresectable pancreatic malignancy improved to a borderline resectable stage. Only one patient with borderline resectable disease underwent operation after CCRT; however, curative resection failed due to celiac artery invasion and peritoneal seeding. The adverse events associated with CCRT were tolerable. In conclusion, preoperative CCRT in LAPC rarely leads to surgical downstaging, and it could lower resectability rates.
Adenocarcinoma/radiography/therapy
;
Adult
;
Aged
;
Aged, 80 and over
;
Antimetabolites, Antineoplastic/therapeutic use
;
Antineoplastic Combined Chemotherapy Protocols/therapeutic use
;
Capecitabine/therapeutic use
;
Carcinoma, Pancreatic Ductal/*radiography/*therapy
;
Chemoradiotherapy/adverse effects/*methods
;
Combined Modality Therapy
;
Deoxycytidine/analogs & derivatives/therapeutic use
;
Disease Progression
;
Female
;
Fluorouracil/therapeutic use
;
Humans
;
Male
;
Middle Aged
;
Neoadjuvant Therapy
;
Neoplasm Staging
;
Pancreas/blood supply/pathology
;
Pancreatic Neoplasms/*radiography/*therapy
;
Retrospective Studies
;
Treatment Outcome
8.Tension Band Plating for a Stress Fracture of the Anterior Tibial Cortex in a Basketball Player: A Case Report.
Journal of the Korean Fracture Society 2012;25(4):323-326
Stress fractures of the anterior tibial cortex are prone to complete fracture because these stress fractures occur on the tension side of the bone. Recently, surgical treatments are preferred in high-performance athletes requiring rapid return to sports. We report our experience of a case in which stress fracture of the anterior tibial cortex was treated using anterior tension band plating in a male athlete and successful bony union and rapid return to sports were achieved.
Athletes
;
Basketball
;
Fractures, Stress
;
Humans
;
Male
;
Sports
;
Tibia
9.Heat Production and Thermal Necrosis by Cortical Drilling.
Kuhn Sung WHANG ; Hyun Kee CHUNG ; Choong Hyeok CHOI ; Jong Heon KIM ; Chang Woo HAN ; Doo Jin PAIK
Journal of Korean Orthopaedic Research Society 1999;2(2):164-170
PURPOSE: The present study was performed to determine the optimum conditions(RPM, load, sharpness of drill) for drilling human cortical bone with standard drill, and to evaluate the histological changes occuring in bone after drilling. MATERIALS AND METHODS: in experiment I, we measured temperature elevations and the durations of temperature elevation in cadaveric femoral cortices at specific distances from the drill hole wall while drilling. The effects of drilling force, speed and new versus worn drill on the termperature were determined. In experiment II, we also measured temperature elevations in the same manner in porcine femoral cortices and evaluated the histological changes occuring in bone after drilling. RESULTS: In experiment I, the most significant temperature elevation(68.4degrees C ) was found when worn drill was used. The lower drilling force and faster speed resulted in 55.1degrees C and 45.8degrees C temperature elevation, respectively. However, drill diameter was not a significant factor for temperature elevation. In experiment II, greater heat production was measured with worn drill, at lower drilling forces, at faster drill speed. The acute histologic reactions in bone were hyperemia, degeneration of osteocytes, change in bone stainability, tears, and fragmentation of the bone edges around the drill holes. The observed histological changes were proportional to the amount of trauma produced, that is, the greater the degree of thermal irritation, the greater the degree of histologic activity. CONCLUSION: In cortical drilling, greater heat production was measured with worn drill, at lower drilling forces, at faster drill speed and the greater the degree of thermal irritation, the greater the degree of histologic activity. A further study of the reaction of bone to drilling at longer intervals of time at different conditions may possibly show whether aseptic thermal necrosis could be prevented.
Cadaver
;
Hot Temperature*
;
Humans
;
Hyperemia
;
Necrosis*
;
Osteocytes
;
Thermogenesis*
10.Two Cases of Systemic Candidiasis in Very Low Birth Weight Infants.
Jong Hyun PAIK ; Mu Hyoung LEE ; Jong Woo BAE
Korean Journal of Medical Mycology 1999;4(1):63-68
Reports of systemic candidiasis in neonates have been noted with major advances in neonatal care permitting the frequent survival of low birth weight infants. We experienced 2 cases of systemic candidiasis associated with skin involvement in very low birth weight infants. One case presented with abdominal distension and an erythematous maculopapular eruption on trunk, buttock, and lower extremities. Culture of peritoneal fluid grew Candida of albicans. In another case, a diffuse erythematous patch was noted on the back and buttock. Culture of blood sample grew Candida of albicans. Despite the treatment with intravenous fluconazole, clinical status of the patients continued to remain unstable, and they died.
Ascitic Fluid
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Buttocks
;
Candida
;
Candidiasis*
;
Fluconazole
;
Humans
;
Infant*
;
Infant, Low Birth Weight
;
Infant, Newborn
;
Infant, Very Low Birth Weight*
;
Lower Extremity
;
Skin