Herpes simplex virus keratits(HSK) is one of the most common external eye diseases that cause corneal blindness, Therefore early diagnosis and proper treatment of HSK are essential. However it is frequently misdiagnosed because it shows non-specific corneal lesion than other infectious corneal disease. And also diagnosis of HSK mostly rely on clinical examination and patient history. We evaluated suspicious HSK patients by indirect immunofluofluorescent(IF) antibody test and analyzed its efficacy in the early diagnosis of HSK. Among 47 patients(47 eyes), 37 patients were suspicious heretic keratitis and others not. Dendritic keratitis patients existed in 17 out of 37 patients and they were evaluated with virus culture and indirect IF test. The result of indirect IF test was confirmed under the immunofluorescent microscope and for virus culture the specimens were inoculated on Vero cells(monkey kidney cells). The positive results of indirect IF test was 28 out of 37 suspicious HSK patients and 1 out of 10 non-suspicious HSK patients. Dendritic HSK patients showed IF positive in 15 out of 17 patients(82.3%). Sensitivity of indirect IF test in suspicious HSK patients was 75.7%(2837) and 88.2%(15/17) in dendritic HSK patients. Indirect IF test was all positive(14/14) in dendritic HSK patients that showed culture positive. From these results, indirect IF test has a high sensitivity in early diagnosis of HSK and might be ussful as a rapid diagnostic tool in HSK patients.
Blindness ; Corneal Diseases ; Diagnosis ; Early Diagnosis ; Eye Diseases ; Herpes Simplex* ; Humans ; Keratitis ; Keratitis, Dendritic ; Keratitis, Herpetic* ; Kidney ; Simplexvirus

Herpes simplex virus keratits(HSK) is one of the most common external eye diseases that cause corneal blindness, Therefore early diagnosis and proper treatment of HSK are essential. However it is frequently misdiagnosed because it shows non-specific corneal lesion than other infectious corneal disease. And also diagnosis of HSK mostly rely on clinical examination and patient history. We evaluated suspicious HSK patients by indirect immunofluofluorescent(IF) antibody test and analyzed its efficacy in the early diagnosis of HSK. Among 47 patients(47 eyes), 37 patients were suspicious heretic keratitis and others not. Dendritic keratitis patients existed in 17 out of 37 patients and they were evaluated with virus culture and indirect IF test. The result of indirect IF test was confirmed under the immunofluorescent microscope and for virus culture the specimens were inoculated on Vero cells(monkey kidney cells). The positive results of indirect IF test was 28 out of 37 suspicious HSK patients and 1 out of 10 non-suspicious HSK patients. Dendritic HSK patients showed IF positive in 15 out of 17 patients(82.3%). Sensitivity of indirect IF test in suspicious HSK patients was 75.7%(2837) and 88.2%(15/17) in dendritic HSK patients. Indirect IF test was all positive(14/14) in dendritic HSK patients that showed culture positive. From these results, indirect IF test has a high sensitivity in early diagnosis of HSK and might be ussful as a rapid diagnostic tool in HSK patients.
Blindness ; Corneal Diseases ; Diagnosis ; Early Diagnosis ; Eye Diseases ; Herpes Simplex* ; Humans ; Keratitis ; Keratitis, Dendritic ; Keratitis, Herpetic* ; Kidney ; Simplexvirus

PURPOSE: The prognosis of non-Hodgkins lymphoma (NHL) in elderly patients seems to be poorer than that in patients aged less than 60 years. This may be due to the lower tolerance for combination chemotherapy in the elderly. Aggressive combination chemo-therapy, which is the treatment of choice in intermediate and high grade NHL of adulthood, may be associated with unpredictab1y severe and lethal toxicity and worsened quality of life in the elderly. We investigated the treatment responses, toxicities and prognostic factors of NHL in elderly patients treated with combination chemotherapy. MATERIALS AND METHODS: We treated 116 elderly (>60 yrs) patients with NHL between January 1986 and June 1996 with adriamycin-containing regimens, such as CHOP (cyclo- phosphamide, adriamycin, vincristine, prednisolone), BACOP (bleomycin, adriamycin, cyclophosphamide, vincristine, prednisolone), and mBACOP (methotrexate, bleomycin, adriamycin, cyclophosphamide, vincristine, prednisolone). Patients in this study ranged from 60 to 81 (median 67) years of age. Fifty-five percent of patients were in stage I or II and the rest (45%) were in stage III or IV. The histologic grade was predominantly (91%) of intermediate and high grade type. RESULTS: The treatment responses were complete (CR) in 55% and partial (PR) in 25%. The median durstion of CR was 32 (3-132) months. The CR rate was significantly higher in patients treated with RDI (relative dose intensity) > 75% than that in the patients treated with RDI < 75% (p 0.003), but there was no significant difference in CR rate between treatment regimens (p-0.38). At a median follow up of 48-months (range, 12 to 132 months), the estimated 5-year ovetall survival was 46%. Ann Arbor Stage (I, II vs III, IV), ECOG performance (0-1 vs 2-3), RDI (>75% vs <75%) and the treatment response were important prognostic factors in the univariate analysis, and the treament response (CR vs non-CR) was the only independent prognostic parameter in the multivariate analysis. The most frequent and severe toxicity associated with chemotherapy was infection with or without neutropenia. The rate of severe infection was significantly decreased in the patients supported with G/GM-CSF but not in the dose-reduction group (RDI<75% vs >75%). CONCLUSION: Our data suggests that achievement of the CR after combination chemotherpy is the most important prognostic factor in the elderly patients with NHL. Suboptimal chemotherapy (RDI<75%) reduced the complete remission rate without reducing the likelihood of developing severe toxicities. Optimal chemotherapy with supportive cares involving the use of hematopoietic growth factors may be needed to improve the treatment response and the survival in the elderly patients with aggressive NHL.
Aged ; Bleomycin ; Cyclophosphamide ; Dimethoate ; Doxorubicin ; Drug Therapy ; Drug Therapy, Combination ; Follow-Up Studies ; Hodgkin Disease* ; Humans ; Intercellular Signaling Peptides and Proteins ; Lymphoma, Non-Hodgkin ; Multivariate Analysis ; Neutropenia ; Prognosis* ; Quality of Life ; Vincristine

BACKGROUND: Methemoglobinemia(MetHb) induced by dapsone overdose is not uncommon in Korea, especially in rural area. For treatment of dapsone-induced methemoglobinemia, methylene blue(MB) and activated charcoal(AC) should be used. To date, no reports have compared the amount of MB used between MB alone with MB & AC combined group(MB+AC). And also between moderate (MetHb<35%) and severe (MetHb>35%) intoxicated group defined by initial MetHb level. Authors hypothesized that less amount of MB can be used if MB and AC was used together and larger amount of MB is necessary to reduce MetHb level to asymptomatic level in severely intoxicated group. METHODS: From Jan 1990 to Dec 1996, a total of 54 patients who received treatment for dapsone intoxication were subject of study, The study was done retrospective chart analysis for initial MetHb level, total amount of MB and AC. Wilcoxon rank sum test and Chi-sqiare test was used to compare the total dosage of MB used for each group. Linear regression analysis was used between initial MetHb and the total amount of MB. Results were considered statistically significant when p<0.05. RESULTS: For MB alone and MB+AC group, the differences in total amount of MB used were statistically significant with mean dosage of 7.14+/-1.1mg/kg and 4.28+/-0.7mg/kg, respectively. And total amount of MB used between moderate and severe intoxicated group, the differences were statistically significant with mean dosage of 5.16+/-1.1mg/kg vs. 10.98+/-1.9mg/kg, respectively. There was significant correlation between initial MetHb level (X) and the amount of methylene blue (Y), Y=0.3X-2.42 (r2=0.41, p=0.0001) in MB alone, Y=0.186X-1.95(r2=0.21, p=0.034) in MB+AC respectively. CONCLUSION: For methemoglobinemia induced by dapsone, total amount of MB can be reduced especially in severe Intoxicated group if AC use was combined in treatment modality. There was significant correlationship between initial MetHb level and total amount of MB used.
Charcoal* ; Dapsone* ; Humans ; Korea ; Linear Models ; Methemoglobinemia ; Methylene Blue* ; Retrospective Studies

In evaluating the early state of shock patients and their response to treatment, generally vital signs or additional hemodynamic values were used. Vital signs are easily obtained and repetitious values or continous monitoring is possible, whereas it cannot evaluate the patient's status properly nor is it a good prognostic factor. Meanwhile, additional hemodynamic values are obtained from pulmonary artery catheterization. But this procedure is difficult to proceed in the emergency room. Since central venous oxygen saturation has the advantage of being easily obtained and acts as a good prognostic factor for shock patients, we intended to prove its efficacy. From 1997 May to October, 50 patients admitted to Yonsei University Young Dong Severance Hospital in shock state, with systolic blood pressure below 90mmHg, were evaluated. Central venous catheter was inserted to obtain central venous oxygen saturation, serum lactate, base excess value, and its' initial value compared with the prognosis. The central venous oxygen saturation and base excess were low, while serum lactate value was high in the nonsurvival group. And in ROC(relative operating characteristic) curve, the AUC(area under curve) of central venous oxygen saturation was larger than the others. In comparing the MOF(multi-organ failure) group with the non-MOF group, the MOF group had a lower central venous oxygen saturation and base excess, and a higher serum lactate level, whereas in ROC curve, the AUC of base excess was larger than the others. Therefore, in estimating the prognosis of shock patients, the early central venous oxygen saturation proved to be a good prognostic factor.
Area Under Curve ; Blood Pressure ; Catheterization, Swan-Ganz ; Central Venous Catheters ; Emergency Service, Hospital ; Hemodynamics ; Humans ; Lactic Acid ; Oxygen* ; Prognosis ; ROC Curve ; Shock* ; Vital Signs

BACKGROUND: The purpose of this study was to determine that the assessment of serum neuron specific enolase(NSE) could provide a reliable early predictor of neurologic outcome after cardiac arrest. METHODS: Prospective, observational study was performed from April 1996 to March 1998 at a university teaching hospital ED. Serum NSE concentrations were analysed twice at 24 and 48 hours after return of spontaneous circulation(ROSC). Neurologic outcome was categorized using cerebral performance category(CPC). RESULTS: Twenty-nine patients(16 were men) were enrolled during the study period. The mean age was 50.8 years. Nine(31%) of them showed good outcome defied as CPC 1-3, and 20(69%) patients showed bad outcome defied as CPC 4-5. In the good outcome group, the serum NSE was revealed 33.8+/-9.3 ng/ml at 24 hours, 34.0+/-4.73 ng/ml at 48 hours. While in the bad outcome group, it was 99.5+/-11.7 ng/ml and 114.6+/-15.8 ng/ml. The NSE at 48hr after ROSC was more prescise than that of 24hr. When the cutoff value of 50 ng/ml at 48 hr, the sensitivity was 82%, and specificity was 93%. CONCLUSION: This study suggest that the serum NSE may represent a valuable, noninvasive, and useful clinical tool for prediction of neurologic outcome after cardiac arrest.
Heart Arrest* ; Hospitals, Teaching ; Humans ; Neurons* ; Observational Study ; Phosphopyruvate Hydratase* ; Prospective Studies ; Sensitivity and Specificity

OBJECTIVES: Infection and replication of the hepatitis B virus are closely related to the host immunity. Anticancer chemotherapy decreases the immune response of the host, Especially, glucocorticoid can activate the replication of hepatitis B virus directly. It is well known that hepatitis B virus infection and hepatic complications are more common in patients with hematologic malignancies like malignant lymphoma. We studied the incidence of hepatitis B virus infection and hepatic complications following anti-cancer chemotherapy in patients with malignant lymphoma. METHODS: Among 224 cases diagnosed as malignant lymphoma from January 1989 to December 1993 at Yonsei University Medical Center, 77 cases tested for hepatitis B virus serology was studied. RESULTS: 1) Eighteen cases (23%) was HBsAg positive. 2) The results of hepatitis C virus serology in six cases were all negative. 3) Eight (57%) of 14 follow-up cases had hepatic complications, Two patients had fulminant hepatitis, two nonicteric hepatitis and four icteric hepatitis. 4) Interferon-alpha was administered in three cases among the patients with hepatic complications. Loss of HBeAg was observed in one case and loss of HBsAg in another case. CONCLUSION: Serious hepatic complications can be occurred following anticancer chemotherapy in HBsAg-positive patients with malignant lymphoma. Therefore, we recommend that patients being considered as candidates for anticancer chemotherapy should routinely undergo serologic test for Hepatitis B virus. In addition HBsAg-positive patients with anticancer chemotherapy should be regularly monitored for hepatic injury. And with the careful use of steroid and interferon, prolongation of survival might be searched for these patients.
Academic Medical Centers ; Drug Therapy* ; Follow-Up Studies ; Hematologic Neoplasms ; Hepacivirus ; Hepatitis ; Hepatitis B ; Hepatitis B e Antigens ; Hepatitis B Surface Antigens* ; Hepatitis B virus ; Humans ; Incidence ; Interferon-alpha ; Interferons ; Lymphoma* ; Serologic Tests

PURPOSE: We evaluated ocular penetration and drug level in tear after topical ofloxacin instillation in rabbit eye with amniotic membrane transplantation(AMT). METHODS: In the first set of experiment, 24 rabbits(24 eyes) were divided into 4 groups according to the epithelial removal or AMT. Topical ofloxacin was instilled 4 times every 15 minutes and then, 1 hour after the last eyedrop, the samples of amniotic membrane(AM), cornea and aqueous humor were collected. In the second set of experiment, 24 rabbits(24 eyes) were divided into 6 groups according to the freshness of AM or its attached time. Topical ofloxacin was applied to eyes and then, tear samples were collected at 30 minutes, 1, 2, 4, and 6 hours. Ofloxacin concentration in the samples of two experiments were evaluated using high performance liquid chromatography. RESULTS: Mean ofloxacin concentrations in cornea and aqueous humor were statistically higher in deepithelized corneas regardless of AMT(P<0.05). And mean tear levels of ofloxacin in AMT groups were statistically higher than those in non-AMT groups(P<0.05). CONCLUSIONS: AMT seems to interfere with the ocular penetration of topical ofloxacin in normal rabbit cornea, but rather enhances ofloxacin penetration in the cornea with epithelial defect. And also the ofloxacin level in tear was higher in eyes with AMT up to 1 hour after topical ofloxacin use. Therefore it seems that AM has potential to act as an effective drug delivery system.
Amnion* ; Aqueous Humor ; Chromatography, Liquid ; Cornea ; Drug Delivery Systems ; Ofloxacin*

Gastrointestinal system involvement is one of the principal complications seen in the recipients of hematopoietic stem cell transplantation (HSCT), and it is also a major cause of morbidity and death in these patients. The major gastrointestinal complications include typhlitis (neutropenic enterocolitis), pseudomembranous enterocolitis, viral enteritis, graft-versus-host disease, benign pneumatosis intestinalis, intestinal thrombotic microangiopathy, and post-transplantation lymphoproliferative disease. As these patients present with nonspecific abdominal symptoms, evaluation with using such imaging modalities as ultrasonography and CT is essential in order to assess the extent of gastrointestinal involvement and to diagnose these complications. We present here a pictorial review of the imaging features and other factors involved in the diagnosis of these gastrointestinal complications in pediatric HSCT recipients.
Child ; *Diagnostic Imaging ; Gastrointestinal Diseases/*diagnosis/*etiology ; Hematopoietic Stem Cell Transplantation/*adverse effects ; Humans

PURPOSE: We measured the inter-rater reliability and validity of the modified Emergency Severity Index-2 ((m)ESI-2) as a triage tool in the emergency department (ED). METHODS: We applied (m)ESI-2 to 2,724 patients who visited three EDs. In each ED, emergency medicine residents, interns, and nurses independently evaluated the severity of the patient with (m)ESI-2. Data on the triage result, the patient disposition, and the length of stay in the ED were collected prospectively. For patients who were admitted or who stayed more than 24 hours in the ED, the APACHE II score was calculated. RESULTS: The weighted kappa value was 0.602 between residents and interns, 0.541 between residents and nurses, and 0.451 between interns and nurses. Hospitalization (ED death, admission, transfer) rates were 100% in category 1 and 82.4%, 53.8%, 17.2%, 6.2% in categories 2 through 5, respectively. The mean length of stay was longest in category 3 (687 min) and shortest in category 5 (150 min). The mean APACHE II score was highest in category 1 (10.8) and 8.6, 6.2, 5.2, 2.9 in categories 2 through 5, respectively. CONCLUSION: The (m)ESI-2 demonstrated good to fair interrater reliability among residents, interns, and nurses, and the resultant categories were related with the hospitalization rates, the length of stay in the ED, and the APACHE II score. With further modification and refinement, (m)ESI-2 can be a reliable and a valid triage tool in the ED.
APACHE ; Emergencies* ; Emergency Medicine ; Emergency Service, Hospital ; Hospitalization ; Humans ; Length of Stay ; Prospective Studies ; Reproducibility of Results* ; Triage*