No abstract available.
Primary Myelofibrosis*

No abstract available.
Radiosurgery*

No abstract available.
Animals ; Liposarcoma* ; Mice ; Mice, Nude*

A 21-year-old man presented with a 7 days history of fever. Careful clinical examination led to the discovery of left supraclavicular lymphadenopathy without hepatosplenomegaly. Serologic tests for Ebstein-Barr virus, HIV, hepatitis type B & C, syphilis and typhoid fever were negative. Blood, urine, and stool cultures yielded no growth. Histologically, the process mainly involved the connective tissue framework of the lymph node, sharing the features of inflammatory pseudotmor(IPT) of other organs: a storiform growth pattern, increased vascularity with associated vascular lesions, and a polymorphous inflammatory infiltrate in a collagen-rich stroma. Immunohistochemical study for spindle cells showed positive reaction for actin and vimentin but not for desmin, and lymphoid cells revealed polyclonality. Characteristics of mass formation, and the inflammatory nautre of the process enabled us adopt the term IPT which should be differentiated from hematolymphoid proliferative disorder or mesenchymal neoplasia.
Male ; Humans

24-hour ambulatory ECG monitoring has been examined for the evaluation of heart rate and longest pause in 34 patients with chronic atrial fibrillation (20 patients treated with digoxin and 14 patients without treatment). Following results were obtained: 1. In 34 patients, the mean of average heart rates was 75.7±13.8/minute, fastest heart rates 148.0±32.4/minute, slowest heart rates 48.1±8.4/minute, difference between fastest and slowest heart rates in individual patients 99.9±29.0/minute and longest pauses 2.95±1.06seconds. The longest pauses of more than 4.0 seconds occurred in 4 of the 34 patients and made an exception of comparison groups. 2. In 27 of the 34 patients, ventricular premature contractures were developed and in 11 of 27, mainly occurred less than 100/24 hours and aberrant conduction occurred in all patients. 3. In 20 patients treated with digoxin (0.25 mg/day), the mean of average heart rates was 78.4±13.7/minute, fastest heart rates 152.5±33.1/minute, slowest heart rates 48.9±8.5/minute, difference between fastest and slowest heart rates in individual patients 103.6±31.7/minute and longest pauses 2.55±0.50 seconds. 4. In 10 patients without treatment, the mean of average heart rates was 78.0±10.7/minute, fastest heart rates 154.5±26.8/minute, slowest heart rates 50.6±7.1/minute, difference between fastest and slowest heart rates in individual patients 103.9±22.2/minute and longest pauses 2.66±0.39 seconds. 5. The difference of heart rates and longest pauses between patients with treatment and without treatment were statistically not significant (P>0.05). In summary, authors seemed to consider that 24-hour ambulatory ECG was useful and safe method for clinical evaluation of patients with chronic atrial fibrillation.
Atrial Fibrillation* ; Contracture ; Digoxin ; Electrocardiography* ; Heart Rate ; Humans ; Methods

Fetal dopaminergic or nondopaminergic cortical tissues were implanted directly into the denervated striatum of partial lesioned rat parkinsonian models. After transplantation, at rats were behaviourally tested with apomorphine and sacrificed for tyrosine hydroxylase immunohistochemical stain. The results of this study are summarized as follows : 1) Of 45 rats partially lesioned with 6-hydroxydopamine, 17 rats(37.8%) met a criteria(a minimum of 4 times/min to apomorphine-induced rotation test) of the rat parkinsonian model. 2) Eight weeks after transplantation of the fetal dopaminergic tissues into the striatum of the rat parkinsonian model, transplanted dopaminergic cells were found to be alive. Also reinnervated dopaminergic fibers were found in the previously denervated striatum. And the behavioural study suggested that the transplantation of the fetal dopaminergic neurons had influenced on the apomorphine-induced rotation. 3) Eight weeks after transplantation of the fetal nondopaminergic tissues into the striatum of the rat parkinsonian model, dopaminergic cells were not found in the previously denervated striatum. However, reinnervation of the dopaminergic fibers were found in the preciously denervated striatum. However, reinnervation of the dopaminergic fibers were found in the previously denervated striatum as well as the reduction of the apomorphine-induced rotation compared to the pregraft state. The major finding of this study support a trophic hypothesis for the mechanism of recovery in response to fetal dopaminergic or nondopaminergic tissue. The author conclude that fetal nondopaminergic tissue also had some beneficial effect in reducing apomorphine-induced rotational asymmetry probably by promoting recovery or sprouting of remaining dopaminergic fibers at the previously denervated striatum of the rat parkinsonian model.
Animals ; Apomorphine ; Dopaminergic Neurons ; Oxidopamine ; Rats* ; Tissue Transplantation* ; Transplantation ; Transplants* ; Tyrosine 3-Monooxygenase

No abstract available.
Phonation* ; Tooth*

Congenital pseudarthrosis is frequently associated with various stigmata of neurofibromatosis, particularly Cafe-Au-Lait spots and,subcutaneous nodules and in these patients, it is noteworthy that the treatment is very difficult even with extensive operative approach. Also it is interesting to find many controversies on etiological relation between neurofibroma and pseudarthrosis, per se and even the existance of nerve element in and around the tissue of pseudarthrosis. A thirteen years old female patient with definite neurofibromatosis associated with congenital tibial pseudarthrosis treated by intramedullary nailing and massive bone graft is reported.
Cafe-au-Lait Spots ; Christianity ; Female ; Fracture Fixation, Intramedullary ; Humans ; Neurofibroma ; Neurofibromatoses ; Pseudarthrosis ; Transplants

BACKGROUND: Although the superior reperfusion and improved clinical outcome following angioplasty for acute myocardial infarction (AMI) have been well known, 10 to 15% of reinfarction and recurrent ischemia in hospital are main limitation of primary percutaneous transluminal coronary angioplasty (PTCA). This study was undertaken to examine the safety and feasibility of stent-supported primary angioplasty in acute myocardial infarction. METHODS: Between July 1995 and Jun. 1997, 32 patients underwent direct or rescue PTCA, including patients with cardiogenic shock. After PTCA, stenting was attempted in patient with dissection or having more than 30% of residual stenosis. Result: In patient with direct PTCA, angiographic success rate was obtained in 91% (30/32). Stenting was attempted in 15 of 30 patients. These patients had suboptimal results (8 patients), non-occlusive dissection (3 patients) and acute occlusion (2 patient). Thrombolysis in myocardial infarction (TIMI) grade 3 flow was restored in 28 patients (93%). In one patient no-reflow phenomena was observed following stent insertion. Despite intra-aortic balloon pumping, there was one death during the hopitalization due to cardiogenic shock following PTCA. Subacute stent thrombosis developed in two patients. 27 patients (90%) were event-free and clinically improved through out the follow up period (11.5+/-5.2 month). Quantitative angiography showed excellent angiographic result after stenting compared with balloon PTCA (2.4+/-0.6 mm vs. 3.4+/-0.3 mm p<0.01). CONCLUSION: After failure of initial angioplasty, coronary stenting can be a supportive therapeutic strategy. Coronary stenting results in a high degree of angiographic success, a low incidence of subacute thrombosis.
Angiography ; Angioplasty* ; Angioplasty, Balloon* ; Angioplasty, Balloon, Coronary ; Constriction, Pathologic ; Follow-Up Studies ; Humans ; Incidence ; Intra-Aortic Balloon Pumping ; Ischemia ; Myocardial Infarction* ; Reperfusion ; Shock, Cardiogenic ; Stents ; Thrombosis

Three groups of patients with newely diagnosed hypertension, or with hypertension not optimally controlled by previous treatment, completed a comparative study on the effects of Dihydrochlorothiazide, propranolol, and prazosin on plasma lipids after three months therapy. The drugs showed equipotent antihypertensive effects(P<0.01). Dihydrochlorothiazide administration was associated with a significant elevation of total cholesterol(42%, P<0.05), and triglyceride(8.1%, P<0.01). Changes of HDL-C(5.1%), LDL-C(3.3%), and cholesterol ratio(-4.8%) were not significant. Propranolol administration was associated with significant elevation of total cholesterol(3.8%, P<0.05), triglyceride(14.5%, P<0.005), and LDL-C(5.6%, P<0.005). Reduction of HDL-C(-7.8%, P<0.05) and cholesterol ratio(-14.7%, p<0.005) was also statistically significant. Prazosin administration was associated with significant decrease in total cholesterol(-6.6%, P<0.005), triglycride(-9.6%, P<0.005), and LDL-C(-11.7%, P<0.005), and significant elevation of HDL-C(10.6%,P<0.005) and cholesterol ratio(24.2%, P<0.005) was noted.
Cholesterol ; Humans ; Hydrochlorothiazide* ; Hypertension* ; Plasma ; Prazosin* ; Propranolol*