1.The Effect of Cardiac Rehabilitation I Phase Program on Physical Capacity after Coronary Artery Bypass Graft Surgery.
Se Youn KIM ; Jae Keun OH ; Jung Ho YOUN ; Young Joo KIM
The Korean Journal of Sports Medicine 2012;30(2):85-91
The aim of this study was to examine the effect of phase I cardiac rehabilitation program (CRP) on physical capacity in patients with coronary artery bypass graft (CABG). Eighty seven patients who underwent CABG in our hospital were enrolled on the study. Among them, excluding 17 during the study, the results of 70 patients were included in the final data. Subjects were classified into two groups according to the participation in the phase I CRP; participation group (n=35) and non-participation group (n=35). The CR was executed for the participation group until patients' discharge. The variables including resting heart rate (RHR), oxygen saturation, walking distance in 6 minutes, and forced expiration amount were measured at initial phase, discharge and follow-up at 1 month after discharge. From the data, descriptive statistics (mean, standard deviation) were calculated, and differences in each variable before, during, after the treatment and between groups were tested using repeated measure analysis of variance using SPSS ver. 18.0 statistics program for Window. For the effects and results with a statistical significance, post-hoc test was made using t-test. There was statistically significant difference (p<0.05) in the RHR and the walking distance in 6 minutes. While there was no significant difference in the oxygen saturation and the maximum expiration amount. As conclusion, the Phase I CRP after CABG showed a effect on the significant improvement of physical capacity by decreasing the RHR and increasing the walking distance in 6 minutes, exerting a positive influence on the recovery after the CABG operation.
Coronary Artery Bypass
;
Coronary Vessels
;
Follow-Up Studies
;
Heart
;
Heart Rate
;
Humans
;
Oxygen
;
Transplants
;
Walking
2.A Case of Epidemic Keratoconjunctivitis Complicated by Alcaligenes Xylosoxidans Infection.
Joo Youn OH ; Young Joo SHIN ; Won Ryang WEE
Korean Journal of Ophthalmology 2005;19(3):233-234
PURPOSE: To report a case of epidemic keratoconjunctivitis complicated by Alcaligenes xylosoxidans. METHODS: A 37-year-old man suffered epidemic keratoconjunctivitis in both eyes. Eleven days later, he developed a corneal ulcer in his left eye. Bacterial staining, culture, and antibiotics sensitivity test were performed from a corneal scrape. RESULTS: The cultures revealed a growth of Alcaligenes xylosoxidans, and the patient was treated with ceftazidime and levofloxacin, based on the sensitivity test results. After 21 days of treatment, the infection was resolved with mild scaring and final vision in the left eye of 20/20. CONCLUSIONS: Alcaligenes xylosoxidans should be considered a rare but potential pathogen able to produce corneal ulcer complication in epidemic keratoconjunctivitis.
Male
;
Keratoconjunctivitis/*complications/pathology
;
Humans
;
Gram-Negative Bacterial Infections/*complications/pathology
;
Corneal Ulcer/*microbiology/pathology
;
Adult
;
*Achromobacter denitrificans
3.Chronological Changes of Surgical Strategy for Early Gastric Cancer: Our 10 Years' Experience.
Cha Kyong YOM ; Soo Youn OH ; Joo Ho LEE
Journal of the Korean Surgical Society 2004;66(6):478-483
PURPOSE: To analysis the chronological changes of surgical strategy for early gastric cancer (EGC) in our hospital over a 10-year period. METHODS: From November 1993 to August 2003, we experienced 201 patients with EGC at Ewha Womans University Mokdong Hospital. The medical and pathologic records of these patients were reviewed retrospectively. The patients were categorized into three groups in chronological order: P1 (1993~1996), P2 (1997~2000), and P3 (2001~2003). The clinicopathological characteristics and treatment modalities among these three groups were compared. RESULTS: Of the 683 gastric cancer patients, 201 patients (29.7%) were pathologically confirmed to have EGC. The proportion of EGC gradually increased in chronological order: 19.2% in P1, 33.2% in P2 and 32.9% in P3. There were no significant differences in clinicopathological characteristics among three groups, including age, sex, location, size, gross type, histology, depth of invasion, and lymph node metastasis. Open surgery was performed in 134 patients, laparoscopic surgery in 52 and endoscopic mucosal resection (EMR) in 15. The proportion of minimally invasive surgery such as EMR, laparoscopic wedge resection, laparoscopy- assisted distal gastrectomy (LADG), and hand-assisted laparoscopic surgery (HALS) increased in chronological order: 0% in P1, 22.4% in P2 and 58.5% in P3. The postoperative mortality was 1.49% (3/201): 2 cases after open surgery, and 1 case after laparoscopic wedge resection. One case after open conventional surgery recurred. There were no significant difference in postoperative complication, postoperative mortality and survival rate among the three groups. Overall 5-year survival rate was 95.4%. CONCLUSION: The proportion of minimally invasive surgery increased during a 10-year period in our hospital. However, there were no significant differences in postoperative complication, postoperative mortality, recurrence rate, and survival rate among three chronological groups.
Female
;
Gastrectomy
;
Hand-Assisted Laparoscopy
;
Humans
;
Laparoscopy
;
Lymph Nodes
;
Mortality
;
Neoplasm Metastasis
;
Postoperative Complications
;
Recurrence
;
Retrospective Studies
;
Stomach Neoplasms*
;
Surgical Procedures, Minimally Invasive
;
Survival Rate
4.The Effect of Latanoprost on Intraocular Pressure during 12 Months of Treatment for Normal-tension Glaucoma.
Korean Journal of Ophthalmology 2005;19(4):297-301
PURPOSE: To evaluate the intraocular pressure (IOP) -lowering efficacy of latanoprost in normal-tension glaucoma (NTG). METHODS: One-hundred and seventeen eyes of 63 NTG patients treated with 0.005% latanoprost once a day were enrolled in this study. Of these, 85 eyes of 47 patients were treated for 12 months. Mean IOPs were analyzed, and the mean IOP reductions from the untreated baseline were assessed after two weeks and after 1, 3, 6, 9, and 12 months of treatment. RESULTS: The mean untreated baseline IOP was 15.0+/-2.7 mmHg. After two weeks of latanoprost treatment, the mean IOP reduction from the baseline value was 2.6+/-0.2 mmHg (17.3%, p< 0.05), and after 6 and 12 months, the reduction was 2.4+/-0.2 mmHg (16.0%, p< 0.05) and 2.4+/-0.2 mmHg (16.0%, p< 0.05), respectively. Patients with a baseline IOP of > or=15 mmHg achieved significantly higher IOP reductions than those with a baseline IOP of < 15 mmHg at all follow-ups (p< 0.05). CONCLUSIONS: Latanoprost was found to be well tolerated and to significantly reduce IOP in NTG patients.
Treatment Outcome
;
Time Factors
;
Retrospective Studies
;
Prostaglandins F, Synthetic/administration & dosage/*therapeutic use
;
Middle Aged
;
Male
;
Intraocular Pressure/*drug effects/physiology
;
Humans
;
Glaucoma, Open-Angle/*drug therapy/physiopathology
;
Follow-Up Studies
;
Female
;
Dose-Response Relationship, Drug
;
Antihypertensive Agents/administration & dosage/*therapeutic use
;
Aged, 80 and over
;
Aged
;
Adult
5.Subretinal Inflammatory Myofibroblastic Tumor: Clinicopathological Findings.
Korean Journal of Ophthalmology 2005;19(3):235-238
PURPOSE: To present a case of inflammatory myofibroblastic tumor which was manifested as an idiopathic subretinal mass without underlying pathology. METHODS: The subretinal mass was surgically excised and evaluated histopathologically. Fluorescein angiography and optical coherence tomography were performed pre- and post-operatively. RESULTS: The mass was histologically composed of lymphoplasma cell infiltration and fibrous proliferation without microorganisms or malignant cells. Immunohistochemistry for smooth muscle actin revealed myofibroblasts as a major cellular component. Preoperative optical coherent tomography showed that the lesion was contiguous to the retina while inducing foveal detachment. Postoperatively, the fovea was attached with visual recovery, and the subretinal lesion did not recur during the follow up. CONCLUSIONS: Inflammatory myofibroblastic tumors may be included in the differential diagnoses of subretinal masses.
Tomography, Optical Coherence
;
Retina/pathology
;
Neoplasms, Muscle Tissue/diagnosis/*pathology
;
Male
;
Inflammation/pathology
;
Humans
;
Fundus Oculi
;
Fluorescence
;
Eye Neoplasms/*pathology
;
Choroid/pathology
;
Atrophy
;
Angiography
;
Adult
6.Evaluation of Corneal Biomechanical Properties Following Penetrating Keratoplasty Using the Ocular Response Analyzer.
Joo Young SHIN ; Jin Seok CHOI ; Joo Youn OH ; Mee Kum KIM ; Jin Hak LEE ; Won Ryang WEE
Korean Journal of Ophthalmology 2010;24(3):139-142
PURPOSE: To evaluate corneal biomechanical properties in eyes that had previously undergone penetrating keratoplasty (PK) using the ocular response analyzer (ORA). METHODS: We recruited 26 patients who had received unilateral PK. Corneal hysteresis (CH), corneal resistance factor (CRF), Goldmann-correlated intraocular pressure (IOPg), and cornea-compensated intraocular pressure (IOPcc) were measured with the ORA and were compared to the measurements from the contralateral eyes that did not undergo PK. RESULTS: The CH was 8.95+/-2.59 mmHg in eyes that underwent PK and 9.78+/-1.45 mmHg in the contralateral eyes that did not undergo PK (p=0.077). The CRF was 10.26+/-2.64 mmHg in post-PK eyes and 9.75+/-1.45 mmHg in the contralateral eyes (p=0.509), and the CH-CRF was significantly smaller in post-PK eyes (-1.31+/-2.32 mmHg in post-PK eyes vs. 0.03+/-0.88 mmHg in fellow eyes, p=0.016). The IOPg and IOPcc were significantly higher in the PK group than they were in the control group. The IOPcc's were 20.81+/-7.81 mmHg and 16.27+/-2.49 mmHg in post-PK and control eyes, respectively (p=0.011); and the IOPg's were 19.22+/-7.34 mmHg and 15.07+/-3.03 mmHg in post-PK and control eyes, respectively (p=0.019). The IOPcc-g's were 1.59+/-2.81 mmHg and 1.21+/-1.30 mmHg in post-PK and control eyes, respectively (p=0.412), and the central corneal thickness (CCT)'s were 489.11+/-90.60 microm and 556.24+/-42.84 microm in post-PK and control eyes, respectively (p=0.068). CONCLUSIONS: Following PK, CH tended to decrease while CRF tended to increase, significantly decreasing CH-CRF. A significantly higher intraocular pressure and a thinner CCT following PK may have contributed to the observed changes in these corneal biomechanical parameters.
Adolescent
;
Adult
;
Aged
;
Cornea/*physiopathology
;
*Diagnostic Techniques, Ophthalmological
;
Elasticity
;
Female
;
Humans
;
Intraocular Pressure
;
*Keratoplasty, Penetrating
;
Male
;
Middle Aged
;
Postoperative Period
;
Young Adult
7.Assessment of myocardial perfusion during acute coronary occlusion and reperfusion by myocardial contrast echocardiography.
Youn Hoon KIM ; Hong Seog SEO ; Chang Gyu PARK ; Do Sun LIM ; Sang Jin KIM ; Wan Joo SHIM ; Dong Joo OH ; Jeong Euy PARK ; Young Moo RO
Korean Circulation Journal 1993;23(2):190-206
BACKGROUND: Myocardial contrast two-dimensional echocardiography(MC-2DE) has been known to have the real time capabilities for repeat in vivo assessment of ischemic risk areas and for evaluation of the myocardial perfusion. The aims of this investigation are (1) to evaluate the feasibility of MC-2DE for the delineation and quantitation of the area at risk. (2) to determine the relationship between the extent of the echocontrast defect area(EDA) during reperfusion and the size of myocardial infarction as determined by post-mortem tissue examination, and (3) to observe serial changes in the time echo-intensity characteristics of MC-2DE during coronary occlusion and reperfusion. METHODS: Myocardial contrast echocardiographic images were made by injecting bolus 5mL of two-syringe-agitated mixture of sodium meglumine ioxaglate(Hexabrix(R)) and normal saline(2 : 3 by volume) into the aortic root before and during coronary occlusion of the left anterior descending coronary artery, distal to the first diagonal branch and during reperfusion on eight open-chest dogs. Two-dimensional echocardiographic short axis views were obtained at four anatomic levels : the apex, the low papillary muscle, the high papillary muscle and the mitral valve. The changes in EDA and echo-intensity with its wash-out half time(WHT) at the high papillary muscle level during coronary occlusion and reperfusion were measured every 15 minutes. The total EDA was measured by planimetry at 3 minutes after coronary occlusion and at 60 minutes after reperfusion. Evans blue or methylene blue were used for the measurement of the anatomic area at risk and triphenyl-tetrazolium chloride(TTC) for the measurement of the infarct area. RESULTS: The EDA measured 30 minutes after coronary occlusion(19.6%) was smaller than that at 3 minutes after coronary occlusion(24.0%, p<0.01). Then EDA at 3 minutes occlusion was strongly predictive of the anatomic extent of area at risk(EDA=0.48 Area at risk+16.95, r=0.84, p<0.05). The EDA at 60 minutes after reperfusion, which showed an irregular margin and was located within the subendocardium of the area at risk, also correlated well with the infarct area(IA)(EDA=0.78 IA+3.32, r=0.82, p=0.09). The peak echo-intensity in the ischemic area during coronary occlusion was significantly low(14.2+/-6.5 vs 73.8+/-31.7 in the non-ischemic area, p<0.01) and the WHT was delayed more in the ischemic area than in the non-ischemic area(23.2+/-2.8 sec vs 8.1+/-3.3sec, p<0.01). During the period of reperfusion, WHT in the previously ischemic area was markedly delayed compared to that in the non-ischemic area (p<0.01), although the peak echo-intensity in the ischemic area at 3 minutes after reperfusion increased modestly compared to that in the non-ischemic area(80.9+/-22.8 vs 72.7+/-8.4), suggesting the impairment in the transit of microbubbles is probably due to microvascular damage after reperfusion. There were no adverse hemodynamic or electrocardiographic effects after injection of the contrast agent. CONCLUSIONS: These findings suggest that myocardial contrast echocardiography was useful as a non-invasive technique, first, to delineate the area at risk in vivo during coronary occlusion and, after reperfusion, the infarct area, and secondly, to evaluate indirectly the state of myocardial perfusion during coronary occlusion and reperfusion.
Animals
;
Axis, Cervical Vertebra
;
Coronary Occlusion*
;
Coronary Vessels
;
Dogs
;
Echocardiography*
;
Electrocardiography
;
Evans Blue
;
Hemodynamics
;
Meglumine
;
Methylene Blue
;
Microbubbles
;
Mitral Valve
;
Myocardial Infarction
;
Papillary Muscles
;
Perfusion*
;
Reperfusion*
;
Sodium
8.Usefulness of Neuroimaging Study in Cephalohematoma of Newborn.
Joo Hyun CHO ; Burm Seok OH ; Young Nam KIM ; Eun Song SONG ; Young Youn CHOI
Korean Journal of Perinatology 2012;23(3):152-158
PURPOSE: Cephalohematoma is a common birth injury that is absorbed spontaneously at most of the time. However, it sometimes can be accompanied with severe intracranial lesion which may ultimately lead to death. The aim of this study is to know when the CT and/or MRI study is useful by analyzing the risk factors for intracranial lesion associated with cephalohematoma in newborn. METHODS: From January 2006 to December 2010, 162 infants diagnosed with cephalohematoma were studied retrospectively. We examined the demographic and clinical data, and also examined the reasons for neuroimaging studies with CT/MRI findings. The risk factors for intracranial lesion associated with cephalohematoma were analyzed by uni- and multivariate analysis as well. RESULTS: Among 162 patients, many were groups of normal birth weight, first-born, singlet or vaginally delivered newborns. Of these patients, 13.6% had neurologic symptoms, 4.1% had other birth injuries, and 1.2% died with associated intracranial lesion. Parietal region was the commonest site and most were greater than 3 cm in diameter. Simple skull X-ray was performed in 56.8% and CT/MRI in 28.4%. Giant hematoma and neurologic symptom were the two common reasons for requesting CT/MRI. Intracranial lesions such as hemorrhage, hypoxic-ischemic encephalopathy, and infarction were shown in almost two thirds of patients who performed CT/MRI. Multivariate analysis showed that significant risk factors were being first-born, having large size hematoma (> or = 5 cm) or having seizure. CONCLUSION: CT and/or MRI is recommended in cephalohematoma of newborn, especially for first-born baby with large size hematoma (> or = 5 cm) or seizure.
Birth Injuries
;
Birth Weight
;
Hematoma
;
Hemorrhage
;
Humans
;
Hypoxia-Ischemia, Brain
;
Infant
;
Infant, Newborn
;
Infarction
;
Multivariate Analysis
;
Neuroimaging
;
Neurologic Manifestations
;
Retrospective Studies
;
Risk Factors
;
Seizures
;
Skull
9.Optical Coherence Tomographic Finding in a Case of Macular Coloboma.
Joo Youn OH ; Young Suk YU ; Jeong Min HWANG ; Kyu Hyung PARK
Korean Journal of Ophthalmology 2007;21(3):175-177
PURPOSE: To report the optical coherence tomography (OCT) findings in a patient with unilateral macular coloboma. METHODS: A 12-year-old male was presented with macular coloboma in the left eye. The optical coherence tomography was performed with fluorescein angiography (FA). RESULTS: The OCT revealed the crater-like depression in the macula, demonstrating atrophic neurosensory retina, and an absence of retinal pigment epithelium and choroid in the lesion. FA showed hypofluorescence corresponding to the size of the lesion in both early and late frames without leakage of dye at any stage. CONCLUSIONS: The OCT can be beneficial to confirm the diagnosis of macular coloboma.
Child
;
Coloboma/*diagnosis
;
Fluorescein Angiography
;
Humans
;
Macula Lutea/*abnormalities
;
Male
;
*Tomography, Optical Coherence/standards
10.An Experimental Study on Tissue Injury Following Intrahepatic Injection of Various Sclerosing Agents in Rats:Usefulness of 50% Acetic Acid.
Keun Young KONG ; Joo Hyung OH ; Yup YOON ; Woo Suk CHOI ; Hoon Pyo HONG ; Eui Jong KIM ; Youn Wha KIM
Journal of the Korean Radiological Society 1998;39(2):305-311
PURPOSE: To evaluate histopathologic change in the liver after injection of various kinds of sclerosants, andto thus determine whether 50% acetic acid, a new sclerosant, is suitable for percutaneous intrahepatic injection. MATERIALS AND METHODS: Four kinds of clinically available sclerosants were used : 50% acetic acid, 99% ethanol,10% phenol, and hot saline. Each group consisted of ten rats, and 0.1ml of each sclerosant was directly injectedinto the liver. After two days and one week, gross and histopathologic findings of resected liver in the area oftissue necrosis, as well as the degree of extrahepatic peritoneal adhesion, were assessed in each group. RESULTS:In all groups, the main pathologic changes were acute necrosis with inflammation after two days and secondaryregenerative fibrosis after week. In the 50% acetic acid injection group, the degree of necrosis was more severeand the mean diameter of the necrotic area was greater ; this latter was not, however, significantly wider than inthe 99% ethanol injection group, though was significantly wider than in the 10% phenol and hot saline injectiongroup. CONCLUSION: When used for percutaneous injection, 50% acetic acid, caused more tissue necrosis than 99%ethanol, 10% phenol, or hot saline. We therefore conclude that this acid may be useful for percutaneousintrahepatic injection of a hepatic tumor.
Acetic Acid*
;
Animals
;
Ethanol
;
Fibrosis
;
Inflammation
;
Liver
;
Necrosis
;
Phenol
;
Rats
;
Sclerosing Solutions*