Pacemaker-mediated tachycardia(PMT) is a circus movement tachycardia that can occur in patients with dual chamber pacemaker with atrial sensing(VDD or DDD), when a ventricular depolarization, either spontaneous or paced, causes retrograde activation of the atrium. Recently, a number of pacemaker manufactures have incorporated in their devices a variety of relatively complex algorithms to prevent PMT. Despite these measures, PMT may still occur because of inappropriate programming or unpredictable variations of ventriculoatrial conduction. We report one case of PMT in a 78-year-old male who received DDD type pacemaker due to sick sinus syndrome. In this case, PMT was disappeared after reprogramming parameters of pacemaker and the application of PMT protection algorithm.
Aged ; Dichlorodiphenyldichloroethane ; Humans ; Male ; Sick Sinus Syndrome ; Tachycardia*

No abstract available.
Drug Therapy* ; Neuroectodermal Tumors, Primitive*

Immunosuppressive therapy based on the use of antilymphocyte globulin (ALG) has become standard therapy for patients with splastic anemia who are not eligible for bone marrow transplantation. In this study, T cell subsets before and after ALG therapy, hematologic responses, complications and prognostic factors were analysed. Eleven (42%) out of twenty-six patients treated with ALG showed response, but two patients showed relapse. Most of the response (9 cases) was noticed within 6 months after the initiation of ALG therapy (median: 3 months). The main complications of ALG therapy were fever (91%), thrombocytopenia (86%), neutropenia (63%), and serum sickness (56%). Four patients were died just ALG therapy because of serum sickness (2 cases), intracranial hemorrhage (1 case), and shock (1 case). Short interval from diagnosis to treatment suggested to show good response (P=0.0575), but it was not significant statistically. Lymphocyte subsets were measured in the blood of 23 patients. Helper T/suppressor T cell ratio (T4/T8 ratio) at the initiation of ALG therapy (day 0) was higher significantly in patients who were responded (P=0.0299). The patients who showed above 1.0 of T4/T8 ratio on day 0 might be speculated good response (P=0.032). More difference of T4/T8 ratio between day 14 after ALG therapy and day 0 might show good response (P=0.0673). Then the actuarial probability of survival at 3 years in patients treated with ALG was 77%. Our data suggest that ALG therapy may be used as an alternative treatment to bone marrow transplantation, and T4/T8 ration of peripheral blood at the initiation of therapy may be used as one of the prognostic factors.
Anemia ; Anemia, Aplastic* ; Antilymphocyte Serum* ; Bone Marrow Transplantation ; Child* ; Diagnosis ; Fever ; Humans ; Intracranial Hemorrhages ; Lymphocyte Subsets ; Neutropenia ; Recurrence ; Serum Sickness ; Shock ; T-Lymphocyte Subsets ; Thrombocytopenia

No abstract available.
Child* ; Humans ; Incidence* ; Leukemia*

No abstract available.
Pancytopenia* ; Pneumonia*

No abstract available.
Child ; Humans ; Kasabach-Merritt Syndrome* ; Kidney Failure, Chronic ; Peritoneal Dialysis, Continuous Ambulatory

No abstract available.
Child ; Humans ; Kasabach-Merritt Syndrome* ; Kidney Failure, Chronic ; Peritoneal Dialysis, Continuous Ambulatory

No abstract available.
Child* ; Drug Therapy ; Humans ; Radiotherapy

Tetanus is a rare disease in the developed countries, including Korea, as a result of nearly universal active immunization. Because many physicians have little experience with its diagnosis and management, misdiagnosis and therapeutic delay may result in catastrophic consequences. We report one case of generalized tetanus. A previously healthy 35-year-old man was admitted to the emergency department because of stiffness on jaw and neck. board-like abdomen, extended and rigid both legs, chest tightness, and dyspnea. Seven days before admission, he was injured on the right thing at work. In the emergency department, he was given 5,000 units of human tetanus immunoglobulin intramuscularly, as well as diazepam 2 mg/hr intravenously. On the second hospital day, tracheostomy was performed. Ten days later, his condition was improved. Twenty eight days after admission, he was discharged without any complication.
Abdomen ; Adult ; Developed Countries ; Diagnosis ; Diagnostic Errors ; Diazepam ; Dyspnea ; Emergency Service, Hospital ; Humans ; Immunoglobulins ; Jaw ; Korea ; Leg ; Neck ; Rare Diseases ; Tetanus* ; Thorax ; Tracheostomy ; Vaccination

No abstract available.
Bone Marrow* ; Necrosis* ; Precursor Cell Lymphoblastic Leukemia-Lymphoma*