3.Accuracy of Intraocular Lens Power Calculation Formulas in Primary Angle Closure Glaucoma.
Jongsoo JOO ; Woong Ju WHANG ; Tae Hoon OH ; Kyu Dong KANG ; Hyun Seung KIM ; Jung Il MOON
Korean Journal of Ophthalmology 2011;25(6):375-379
PURPOSE: To compare the accuracy of intraocular lens (IOL) power calculation formulas in eyes with primary angle closure glaucoma (ACG). METHODS: This retrospective study compared the refractive outcomes of 63 eyes with primary ACG with the results of 93 eyes with normal open angles undergoing uneventful cataract surgery. Anterior segment biometry including anterior chamber depth, axial length, and anterior chamber depth to axial length ratio were compared by the IOL Master. Third generation formulas (Hoffer Q and SRK/T) and a fourth generation formula (Haigis) were used to predict IOL powers in both groups. The predictive accuracy of the formulas was analyzed by comparison of the mean error and the mean absolute error (MAE). RESULTS: In ACG patients, anterior chamber depth and the anterior chamber depth to axial length ratio were smaller than normal controls (all p < 0.05). The MAEs from the ACG group were larger than that from the control group in the Haigis formula. The mean absolute error from the Haigis formula was the largest and the mean absolute error from the Hoffer Q formula was the smallest. CONCLUSIONS: IOL power prediction may be inaccurate in ACG patients. The Haigis formula produced more inaccurate results in ACG patients, and it is more appropriate to use the Hoffer Q formula to predict IOL powers in eyes with primary ACG.
Aged
;
Biometry
;
Cataract Extraction
;
Glaucoma, Angle-Closure/*complications
;
Glaucoma, Open-Angle/complications
;
Humans
;
*Lens Implantation, Intraocular
;
*Lenses, Intraocular
;
Middle Aged
;
*Optics and Photonics
;
Reproducibility of Results
;
Retrospective Studies
4.Paradoxical Response to Chemotherapy in Tuberculous Pleural Effusion.
Myung Ki JUNG ; Hye Jeen LEE ; Me Jin KIM ; Young Ho KIM ; Seung YANG ; Il Tae WHANG ; Byoung Ju KIM
Pediatric Allergy and Respiratory Disease 2009;19(1):71-77
It is defined as the paradoxical response when the clinical or radiologic worsening of old lesions or the development of new lesion occur in spite of appropriate antituberculous therapy. The paradoxical response can occur as an intracranial tuberculoma, pleurisy, pericarditis and contralateral new parenchymal lesions. However, poor compliance with therapy, drug resistance, non-tuberculous mycobacterium, or another underlying condition as lung cancer should be ruled out before concluding that the treatment is the cause of the exacerbation. The case reports of paradoxical response have been mainly reported in adults, but extremely rare in children. We report a case of paradoxical response in which a new parenchymal lung lesion developed during antituberculous therapy in a 14-year-old female patient with tuberculous pleurisy. She experienced clinical improvement with steroid therapy in addition to antituberculous therapy.
Adolescent
;
Adult
;
Child
;
Compliance
;
Female
;
Humans
;
Lung
;
Lung Neoplasms
;
Mycobacterium
;
Pericarditis
;
Pleural Effusion
;
Pleurisy
;
Tuberculoma, Intracranial
;
Tuberculosis
;
Tuberculosis, Pleural
5.Sum of the Curve Indices for Estimating the Vascular Tortuousness of the Internal Carotid Artery.
Jae Kyun KIM ; Jin Woo CHOI ; Byung Se CHOI ; Tae Il KIM ; Sun Moon WHANG ; Sang Joon KIM ; Dae Chul SUH
Neurointervention 2009;4(2):101-106
PURPOSE: Most technical difficulties in intracranial stenting are derived from the vascular resistance caused by the severe tortuousness of intracranial arteries. The purpose of this study was to develop a practical method for measuring vascular tortuousness so that it would be possible to predict technical difficulties requiring further technical support. MATERIALS AND METHODS: We developed a best-fit circle metrics which made measurement of vascular tortuousness feasible, which was called "curve index (CI)". We compared the curve index in 56 consecutive patients who underwent M1 stenting for symptomatic severe stenosis. The difference in the CI between the successful and the aborted groups was statistically compared by using the Mann-Whitney U test. ROC curve analysis was performed to evaluate the diagnostic performance of the best-fit circle metrics. RESULTS: There was no statistically significant difference between the successful and the aborted cases in the CIs of each curve segment. However, the sum of all CIs of the aborted group was significantly larger (3.49) than that of the successful group (2.53) (p=0.013). On ROC curve analysis, the area under the curve was 0.806. When we took the cut-off value to be 3, the sensitivity was 75% and the specificity 85%. CONCLUSION: We developed a practical method for measuring the CI of vessel curves in order to estimate the tortuousness of the internal carotid artery. A CI less than 3, therefore, indicates a favorable vascular curvature for the intracranial stenting procedure. A vessel having a higher curve index was more likely to be aborted.
Arteries
;
Carotid Artery, Internal*
;
Constriction, Pathologic
;
Humans
;
ROC Curve
;
Sensitivity and Specificity
;
Stents
;
Vascular Resistance
6.Rhabdomyolysis Associated With Statin Medication, Exercise and Sauna.
Young Ho HONG ; Hyeon Seon WON ; Do I KIM ; Su Hee LEE ; Tae Sun KIM ; Yun Yong SEO ; Jeong Bae PARK ; Il Soon WHANG ; Hyun Ho SHIN
Korean Circulation Journal 2008;38(5):284-286
Rhabdomyolysis is a syndrome involving the breakdown of skeletal muscle, and this causes myoglobin and other intracellular proteins and electrolytes to leak into the circulatory system. We report here on a case of rhabdomyolysis associated with statin, exercise and sauna exposure. A 63-year-old woman presented to our hospital, and she had been taking simvastatin for over 6 years due to dyslipidemia. She complained of developing myalgia and weakness of the lower extremities over the previous 5 days. She had used a sauna more than 4 hours daily for 20 years, and she had started unaccustomed exercise in the sauna 1 week prior to admission. Her serum creatine kinase concentration was 45,990 IU/L. Conservative treatment was started with the discontinuation of her statin medication, exercise and use of the sauna. Her symptoms and serum creatine kinase level decreased 1 week after admission and she was discharged with minimal residual muscle weakness.
Creatine Kinase
;
Dyslipidemias
;
Electrolytes
;
Female
;
Humans
;
Hydroxymethylglutaryl-CoA Reductase Inhibitors
;
Lower Extremity
;
Middle Aged
;
Muscle Weakness
;
Muscle, Skeletal
;
Myoglobin
;
Proteins
;
Rhabdomyolysis
;
Simvastatin
;
Steam Bath
7.A Case of Condyloma Acuminatum Presenting as a Rectal Polyp.
Tae Sun KIM ; Il Soon WHANG ; Yun Yong SEO ; Su Hee LEE ; Young Ho HONG ; Sung Hoon JUNG ; Sung Ran HONG ; Eun Ju KIM
Korean Journal of Gastrointestinal Endoscopy 2008;37(1):61-64
Condyloma acuminatum, commonly known as anogenital warts, is caused by human papillomavirus (HPV). The most common location of condyloma acuminatum in women is the vulva. Other locations are the vagina, anus and perianal area, perineum and cervix. Condyloma acuminatum most commonly occur due to receptive anal intercourse, and can enlarge to form exophytic masses on the perianal skin, but rarely involve the rectum. We experienced an occurrence of a 12 mm polypoid lesion in the rectum of a heterosexual woman detected during a colonoscopy. The polypoid lesion was excised and was diagnosed as condyloma acuminatum. The lesion was positive for HPV type 11 based on the use of an HPV DNA chip test.
Anal Canal
;
Cervix Uteri
;
Colonoscopy
;
Female
;
Heterosexuality
;
Humans
;
Oligonucleotide Array Sequence Analysis
;
Perineum
;
Polyps
;
Rectum
;
Skin
;
Vagina
;
Vulva
;
Warts
8.Incomplete Colonoscopy in Patients with Occlusive Colorectal Cancer: Usefulness of CT Colonography According to Tumor Location.
Joo Hee KIM ; Won Ho KIM ; Tae Il KIM ; Nam Kyu KIM ; Kang Young LEE ; Myeong Jin KIM ; Ki Whang KIM
Yonsei Medical Journal 2007;48(6):934-941
PURPOSE: We sought to evaluate the clinical usefulness of CT colonography (CTC) after incomplete conventional colonoscopy (CC) for occlusive colorectal cancer (CRC) according to the tumor location. MATERIALS AND METHODS: Seventy-five patients with occlusive CRC underwent subsequent CTC immediately after incomplete CC. Fifty-nine patients had distal CRC and 16 had proximal colon cancer. Experienced radiologists prospectively analyzed the location, length, and TNM staging of the main tumor. The colorectal polyps in the remaining colorectum and additional extraluminal findings were also recorded. Sixty-seven patients underwent colorectal resection. We retrospectively analyzed the surgical outcome and correlated CTC and CC findings. RESULTS: The overall accuracies of tumor staging were: T staging, 86%; N staging (nodal positivity), 70% (80%); and intra-abdominal M staging, 94%. Additional colonic polyps were found in 23 patients. Six synchronous carcinomas were detected (9%); three in the proximal colon and three in the distal colon of occlusion. Clinically significant localization errors at CC were noted in 8 patients (12%, 5 proximal colon cancers and 3 distal CRCs) and were corrected by CTC. After CTC, the surgeons modified the initial surgical plan in 11 cases (16%). CONCLUSION: In occlusive CRC, CTC is not only useful in the evaluation of the proximal bowel, but can also provide surgeons with accurate information about staging and tumor localization. CTC is recommended when endoscopists encounter occlusive CRC, regardless of tumor location.
Adult
;
Aged
;
Aged, 80 and over
;
Colonography, Computed Tomographic/*methods
;
Colonoscopy/*methods
;
Colorectal Neoplasms/pathology/radiography/*surgery
;
Female
;
Humans
;
Male
;
Middle Aged
;
Neoplasm Staging
;
Reproducibility of Results
9.Correlation between Body Fat Percent Estimated by Bioelectrical Impedance Analysis and Other Variable Methods .
Hye Won YOM ; Su Jung KIM ; Il Tae WHANG ; Young Mi HONG
Journal of the Korean Pediatric Society 2003;46(8):751-757
PURPOSE: Obesity is a significant health problem with medical and psychological consequences for children and adolescents. The purpose of this study was to assess the correlation between body fat percent using bioelectrical impedance(BI) and other variable methods. METHODS: We measured height, weight, body mass index(BMI) and body fat percent by skinfold thickness(ST) and BI in 1,035(496 male; 539 female) children from seven to 18 years of age. The correlation coefficients between BI and each of the other different methods were obtained. The sensitivity and specificity to predict obesity by these several methods were studied. RESULTS: Fat percent estimated by BI analysis and BMI showed a strong correlation(r=0.749). Fat percent estimated by BI analysis and ST showed a very strong correlation(r=0.835). At the 95th percentile cut-off point for BI, ST showed a sensitivity of 57.7%, and a specificity of 97.6% for estimating body fat. At the 95th percentile cut-off point for BI, BMI showed a sensitivity of 84.9%, and a specificity of 99.3% for estimating body fat. CONCLUSION: The fat percent estimated by BI analysis correlated strongly with ST or BMI. BI analysis is an objective and accurate method for estimating body fat in childhood obesity.
Adipose Tissue*
;
Adolescent
;
Body Mass Index
;
Body Weight
;
Child
;
Electric Impedance*
;
Humans
;
Male
;
Obesity
;
Pediatric Obesity
;
Sensitivity and Specificity
;
Skinfold Thickness
10.Clinical Analysis of the Delayed Post-Traumatic Epidural Hematoma after Hematoma Evacuation.
Tae Il PARK ; Kum WHANG ; Sung Min CHO ; Jin Soo PYEN ; Chul HU ; Soon Ki HONG ; Hun Joo KIM
Journal of Korean Neurosurgical Society 2002;31(2):133-138
OBJECTIVE: The authors analyze the incidence, etiological and prognostic factors between contralateral and ipsilateral delayed epidural hematoma after evacuation of initial hematoma and to formulate recommendations for early detection of evolving hematoma and improvement of outcome. METHODS: Between July 1997 and December 1999, 417 patients underwent craniotomy at department of neurosurgery to evacuate an acute posttraumatic intracranial hematoma. Analysis of these clinical and neuroradiologic data showed that we underwent a second operation on 24 patient(5.8%) for removal of delayed epidural hematoma. In 10(2.4%) of these patients the second operation was undertaken to evacuate a new hematoma that had developed at a contralateral side from the initial hematoma. In 14 patients(3.4%), the second operation was to remove a epidural hematoma at the same site as the first craniotomy. RESULTS: 24 patients were divided into two groups. In Group A, 10 patients who developed contralateral delayed epidural hematoma were 31.5 years(11-61) of age and had skull fracture at the site of delayed epidual hematoma formation. Two of these patients revealed severe brain swelling during the evacuation of acute subdural hematoma. Eight of them were diagnosed within 24 hours after craniotomy through immediately postoperative computed tomography scan. In Group B, 14 patients who developed ipsilateral epidural hematoma were 56.1 years(27-75) of age. Six of them had hemorrhagic tendency related to past medical history. Eleven of these patients were associated with thrombocytopenia and consumptive coagulopathy when required second operation. Twelve patients were diagnosed within 48-72 hours after craniotomy due to clinical deterioration or failure to improve. There was no significant difference in outcome between two groups. CONCLUSION: The authors sought differential factors between contralateral and ipsilateral delayed epidural hematoma. Delayed epidural hematoma after craniotomy may need an urgent operation or lead to serious complication or disability. Postoperative computed tomography scan, intracranial pressure monitoring and repeat computed tomography scan within 72 hours of injury are strongly recommended in these cases, especially after decompression of cranial cavity.
Brain Edema
;
Craniotomy
;
Decompression
;
Hematoma*
;
Hematoma, Subdural, Acute
;
Humans
;
Incidence
;
Intracranial Pressure
;
Neurosurgery
;
Skull Fractures
;
Thrombocytopenia

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