1.A Comparison of Clinical Results between 5.1mm and 3.5mm Clear Corneal Incision in the Cataract Surgery.
Gyeong Oh YUN ; Ki Bong KIM ; Hae Bin LIM
Journal of the Korean Ophthalmological Society 1995;36(11):1910-1916
Small incision cataract surgery using phacoemulsification, self sealing, small diameter optics and foldable intraocular lenses has been developed. These small incisions are designed to minimize the astigmatism induced by the surgery. The 3.5mm clear corneal incision for the implantation of foldable silicone lense has been widely used. However, the implantation of a PMMA lense has been tried in spite of the longer incision required for the unfoldable PMMA lense. Generally, longer incision was believed to increase the risk of infection and induced asigmatism. In this study, we analyzed the results of clear corneal incision between injectable silicone IOLs and 5mm optic PMMA IOLs. In the early postoperative period(to 3 months) vector analysis showed less induced astigmatism in the 3.5mm group than that in the 5.1mm group. The corrected visual acuity during the postoperative period was not diffrent between two groups. The posterior capsular fibrosis in 3.5mm silicone IOLs was more common than that in 5mm PMMA IOLs.
Astigmatism
;
Cataract*
;
Fibrosis
;
Lenses, Intraocular
;
Phacoemulsification
;
Polymethyl Methacrylate
;
Postoperative Period
;
Silicones
;
Visual Acuity
2.Effect of decompressive partial temporal lobectomy on extensive panhemispheric infarction of middle cerebral artery with impending herniation process.
Hae Jeong YUN ; Oh Young KWON ; Byeong Hoon LIM ; Gyeong Won KIM ; In Sung PARK ; Jin Myung JUNG
Journal of the Korean Neurological Association 1997;15(1):46-53
Acute infarction in the whole territory of the middle cerebral artery (MCA) can lead to massive cerebral edema, raised intracranial pressure and cerebral herniation which may result in come and death ultimately. There are same reports which mentioned that craniectomy or stroketomy was an effective life-saving procedure and favorable outcome would be expected after the procedure. In this study, the effect of decompressive partial temporal lobectomy was evaluated in twelve patients of extensive panhemispheric infarction of middle cerebral artery(MCA). We investigated radiologically proven patients of extensive panhemispheric infarction of MCA with impending herniation process, who were admitted to our hospital from March 1991 to June 1996, prospectively and retrospectively. Decompressive partial temporal lobectomy was performed in twelve patients and eighteen patients were treated by only conventional medical treatment(control group). Prognosis were compared between two groups to analyse the effect of the decompressive lobectomy. Fourteen out of the 18 controls(78%) and five out of 12 patients who were treated by decompressive lobectomy(41%) expired due to herniation process. The mortality between two groups was significantly different(P(0.05). Four patient had relatively good outcome(by Barthel index score) and all of them belonged to the decompressive lobectomy group. These results suggest that the decompressive lobectomy be an effective life saving procedure for malignant cerebral edema after a total MCA infarction.
Brain Edema
;
Humans
;
Infarction*
;
Infarction, Middle Cerebral Artery
;
Intracranial Pressure
;
Middle Cerebral Artery*
;
Mortality
;
Prognosis
;
Prospective Studies
;
Retrospective Studies
3.Adenoid Cystic Carcinoma in the Orbit.
Gyeong Oh YUN ; Woong Chul CHOE ; Jung Il MOON ; Sung Kun CHUNG
Journal of the Korean Ophthalmological Society 1993;34(12):1199-1202
The adenoid cystic carcinoma in the orbit is rare, but is the most common in the malignancy of the orbit. The clinical signs are proptosis with displacement of the globe downward and inward, limitation of ocular movements and diplopia. The diplopia and ocular pain is due to the tumor metastasis to the extraocular mescle and nerve sheath. The authors have experienced a case of adenoid cystic carcinoma in the right orbit in a 72-year-old man.
Adenoids*
;
Aged
;
Carcinoma, Adenoid Cystic*
;
Diplopia
;
Exophthalmos
;
Humans
;
Neoplasm Metastasis
;
Orbit*
4.Teriparatide therapy without surgical treatment for medication-related osteonecrosis of the jaw: a report of two cases
Gyeong-Yun KIM ; Woo-Seok KANG ; Hyo-Joon KIM ; Seong-Yong MOON ; Ji-Su OH
Oral Biology Research 2024;48(3):94-99
Medication-related osteonecrosis of the jaw (MRONJ) is a severe complication associated with antiresorptive or anticancer agents.Surgical intervention is generally recommended for advanced stages, but some patients may be ineligible for surgery due to systemic conditions or anatomical limitations. We present two patients who had been treated for osteoporosis with bisphosphonates and were diagnosed with stage 2 MRONJ. Their chief complaints included refractory pain, purulent discharge, and exposed bone following tooth extraction. Despite conservative treatment, the MRONJ worsened, prompting the initiation of teriparatide therapy. After teriparatide administration, the patients experienced symptom improvement, spontaneous sequestrum removal, and significant bone regeneration of vertical osteolysis. Teriparatide, a bone anabolic agent, is typically recommended as adjuvant therapy alongside surgical treatment for MRONJ. This case report illustrates the effectiveness of teriparatide monotherapy in the absence of surgical intervention, particularly for patients who cannot discontinue antiresorptive agents due to low bone mineral density.
5.Teriparatide therapy without surgical treatment for medication-related osteonecrosis of the jaw: a report of two cases
Gyeong-Yun KIM ; Woo-Seok KANG ; Hyo-Joon KIM ; Seong-Yong MOON ; Ji-Su OH
Oral Biology Research 2024;48(3):94-99
Medication-related osteonecrosis of the jaw (MRONJ) is a severe complication associated with antiresorptive or anticancer agents.Surgical intervention is generally recommended for advanced stages, but some patients may be ineligible for surgery due to systemic conditions or anatomical limitations. We present two patients who had been treated for osteoporosis with bisphosphonates and were diagnosed with stage 2 MRONJ. Their chief complaints included refractory pain, purulent discharge, and exposed bone following tooth extraction. Despite conservative treatment, the MRONJ worsened, prompting the initiation of teriparatide therapy. After teriparatide administration, the patients experienced symptom improvement, spontaneous sequestrum removal, and significant bone regeneration of vertical osteolysis. Teriparatide, a bone anabolic agent, is typically recommended as adjuvant therapy alongside surgical treatment for MRONJ. This case report illustrates the effectiveness of teriparatide monotherapy in the absence of surgical intervention, particularly for patients who cannot discontinue antiresorptive agents due to low bone mineral density.
6.Teriparatide therapy without surgical treatment for medication-related osteonecrosis of the jaw: a report of two cases
Gyeong-Yun KIM ; Woo-Seok KANG ; Hyo-Joon KIM ; Seong-Yong MOON ; Ji-Su OH
Oral Biology Research 2024;48(3):94-99
Medication-related osteonecrosis of the jaw (MRONJ) is a severe complication associated with antiresorptive or anticancer agents.Surgical intervention is generally recommended for advanced stages, but some patients may be ineligible for surgery due to systemic conditions or anatomical limitations. We present two patients who had been treated for osteoporosis with bisphosphonates and were diagnosed with stage 2 MRONJ. Their chief complaints included refractory pain, purulent discharge, and exposed bone following tooth extraction. Despite conservative treatment, the MRONJ worsened, prompting the initiation of teriparatide therapy. After teriparatide administration, the patients experienced symptom improvement, spontaneous sequestrum removal, and significant bone regeneration of vertical osteolysis. Teriparatide, a bone anabolic agent, is typically recommended as adjuvant therapy alongside surgical treatment for MRONJ. This case report illustrates the effectiveness of teriparatide monotherapy in the absence of surgical intervention, particularly for patients who cannot discontinue antiresorptive agents due to low bone mineral density.
7.Teriparatide therapy without surgical treatment for medication-related osteonecrosis of the jaw: a report of two cases
Gyeong-Yun KIM ; Woo-Seok KANG ; Hyo-Joon KIM ; Seong-Yong MOON ; Ji-Su OH
Oral Biology Research 2024;48(3):94-99
Medication-related osteonecrosis of the jaw (MRONJ) is a severe complication associated with antiresorptive or anticancer agents.Surgical intervention is generally recommended for advanced stages, but some patients may be ineligible for surgery due to systemic conditions or anatomical limitations. We present two patients who had been treated for osteoporosis with bisphosphonates and were diagnosed with stage 2 MRONJ. Their chief complaints included refractory pain, purulent discharge, and exposed bone following tooth extraction. Despite conservative treatment, the MRONJ worsened, prompting the initiation of teriparatide therapy. After teriparatide administration, the patients experienced symptom improvement, spontaneous sequestrum removal, and significant bone regeneration of vertical osteolysis. Teriparatide, a bone anabolic agent, is typically recommended as adjuvant therapy alongside surgical treatment for MRONJ. This case report illustrates the effectiveness of teriparatide monotherapy in the absence of surgical intervention, particularly for patients who cannot discontinue antiresorptive agents due to low bone mineral density.
8.A case of chronic neutrophilic leukemia.
Sun Chang HONG ; Ji Hoon KIM ; Jung Min LEE ; Jun Oh CHUNG ; Yun Kwon KIM ; So Yon KIM ; Gyeong In LEE
Korean Journal of Medicine 2006;71(3):328-332
Chronic neutrophilic leukemia (CNL) is a rare myeloproliferative disorder characterized by clonal proliferation of mature neutrophils, hepatosplenomegaly, elevated leukocyte alkaline phosphatase score (ALP score) and a negative Philadelphia chromosome. To date, approximately 150 cases have been reported in the literature, including some cases presenting with a 'leukemic' state reflected by a neutrophilic reaction. The term 'true' CNL, recently introduced by Reilly, highlights the need for more experience with CNL cases to improve the diagnostic criteria. In Korea, about 10 cases have been reported in the literature and some of those cases did not meet the WHO diagnostic criteria for CNL. We present a typical case of CNL in a 66-year-old man who complained of general weakness and weight loss. On admission, the white blood cell count from the peripheral blood was 175,600/L with 80% segmented neutrophils. The cytogenic study was negative for the Philadelphia chromosome and had a normal karyotype.
Aged
;
Alkaline Phosphatase
;
Humans
;
Karyotype
;
Korea
;
Leukemia, Neutrophilic, Chronic*
;
Leukocyte Count
;
Leukocytes
;
Myeloproliferative Disorders
;
Neutrophils
;
Philadelphia Chromosome
;
Weight Loss
9.Comparison of Outcomes between Primary Closure vs. Patch Angioplasty in Carotid Endarterectomy.
Woo Sung YUN ; Dong Ik KIM ; Kyung Bok LEE ; Ui Jun PARK ; Young Wook KIM ; Gyeong Moon KIM ; Chin Sang CHUNG ; Oh Young BANG ; Keon Ha KIM
Journal of the Korean Surgical Society 2010;78(5):314-319
PURPOSE: The aim of this study was to compare the short and long-term outcomes following carotid endarterectomy (CEA) with either primary closure (PC) or patch angioplasty (PAT) performed by single center vascular surgeons. METHODS: Between November 1994 and March 2008, a total of 366 patients underwent 401 consecutive primary CEA procedures at our institution. We retrospectively reviewed patients' medical records. Two vascular surgeons prefer routine PC and one vascular surgeon prefer routine patch closure using bovine pericardial patch. Postoperative neurologic complications were determined by clinical neurologists. Restenosis was defined as >50% stenosis on follow-up duplex scan. Data was analyzed to compare the early (< or =30 days) and late results of CEA between PC group and PAT group. RESULTS: The mean follow-up duration was significantly longer in the PC group than that in the PAT group (61.7 months vs. 41.2 months, P<0.001). Coronary artery disease and combined CEA with coronary artery bypass were more common in the PAT group (39% vs. 55%, P<0.002; 4% vs. 12%, P<0.004). Perioperative ipsilateral TIA/stroke rates in the PC and PAT groups were 1.5% and 0.7% (PC=4/270 vs. PAT=1/131, P=0.564). Regarding late outcomes, Kaplan-Meier analysis failed to show any difference between 2 groups on freedom from ipsilateral transient ischemic attack (TIA)/stroke, freedom from restenosis and TIA/stroke-free survival (P=0.851, P=0.232, P=0.103, log-rank test). CONCLUSION: Our results suggest that PC following CEA is not necessarily inferior to PAT for experienced surgeons.
Angioplasty
;
Constriction, Pathologic
;
Coronary Artery Bypass
;
Coronary Artery Disease
;
Endarterectomy, Carotid
;
Follow-Up Studies
;
Freedom
;
Humans
;
Ischemic Attack, Transient
;
Kaplan-Meier Estimate
;
Medical Records
;
Retrospective Studies
10.Overexpression of POSTN in Tumor Stroma Is a Poor Prognostic Indicator of Colorectal Cancer.
Hyeon Jeong OH ; Jeong Mo BAE ; Xian Yu WEN ; Nam Yun CHO ; Jung Ho KIM ; Gyeong Hoon KANG
Journal of Pathology and Translational Medicine 2017;51(3):306-313
BACKGROUND: Tumor microenvironment has recently drawn attention in that it is related with tumor prognosis. Cancer-associated fibroblast also plays a critical role in cancer invasiveness and progression in colorectal cancers. Periostin (POSTN), originally identified to be expressed in osteoblasts and osteoblast-derived cells, is expressed in cancer-associated fibroblasts in several tissue types of cancer. Recent studies suggest an association between stromal overexpression of POSTN and poor prognosis of cancer patients. METHODS: We analyzed colorectal cancer cases for their expression status of POSTN in tumor stroma using immunohistochemistry and correlated the expression status with clinicopathological and molecular features. RESULTS: High level of POSTN expression in tumor stroma was closely associated with tumor location in proximal colon, infiltrative growth pattern, undifferentiated histology, tumor budding, luminal necrosis, and higher TNM stage. High expression status of POSTN in tumor stroma was found to be an independent prognostic parameter implicating poor 5-year cancer-specific survival and 5-year progression-free survival. CONCLUSIONS: Our findings suggest that POSTN overexpression in tumor stroma of colorectal cancers could be a possible candidate marker for predicting poor prognosis in patients with colorectal cancers.
Colon
;
Colorectal Neoplasms*
;
Disease-Free Survival
;
Fibroblasts
;
Humans
;
Immunohistochemistry
;
Necrosis
;
Osteoblasts
;
Phenobarbital
;
Prognosis
;
Tumor Microenvironment