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Biomedical subjects

T Miyazaki

Publications and source records attributed to T Miyazaki.

At least 613 records · Page 34Linked to original sources
PubMed1991

[Home therapy in cancer pain--from the viewpoint of the pain clinic].

Recently, the return to everyday life and a meaningful life are the most important goals in the management of cancer pain patients who have not undergone radical therapy. The aim is therefore betterment of QOL (quality of life) of the cancer pain patients who suffer from physical and mental pain, However, one can not expect much from any kind of therapy without adequate relief of physical cancer pain. Accordingly, pain relief methods in a pain clinic are also necessary for home therapy in cancer pain. We should like to show some cases treated in our pain clinic and emphasize the efficacy of our treatment for cancer pain.

Adult↗
PubMed1991

[A case of theophylline-induced rhabdomyolysis following therapy of bronchial asthma].

A case of a 81-year-old asthmatic male with Theophylline-induced rhabdomyolysis was reported. After intravenous administration of 250 mg of Aminophylline, he developed muscle weakness in the lower extremities. Serum CPK was 31,450 IU, and other enzymes escaping from skeletal muscles were elevated. Serum and urine myoglobin were also elevated. Cessation of Theophylline administration and conservative therapy resulted in improvement of rhabdomyolysis without concomitant acute renal failure. The present case was the 11th case of Theophylline-induced rhabdomyolysis in the world and the second case Japan.

Aged↗
PubMed1991

[A case of mitochondrial encephalomyopathy with schizophrenic psychosis, dementia and neuroleptic malignant syndrome].

A 37-year-old male with an 8-year-history of schizophrenic psychosis and dementia developed hyperpyrexia and cataleptic rigidity during haloperidol administration. He was transferred to our hospital where he was noticed to have generalized muscle weakness and atrophy. In his muscle biopsy, there were numerous ragged-red fibers and focal cytochrome c oxidase deficiency. In addition, the presence of strongly SDH-reactive blood vessels (SSV) in his muscle biopsy suggests that the similar systemic vascular abnormality as seen in MELAS plays a certain role for inducing the central nervous system symptoms. He discontinued haloperidol, and was placed on coenzyme Q and idebenone which were effective for his psychic problems. Several months later, his schizophrenic symptom disappeared and mental status improved from IQ of 60 to 68. We would emphasize that mitochondrial encephalomyopathies must be taken into account for differential diagnosis for psychiatric patients with mental deterioration.

Adult↗
PubMed1991

Accumulation of quinolinic acid in uremic serum and its removal by hemodialysis.

Quinolinic acid was first identified in uremic serum by use of gas chromatography/mass spectrometry. Quantification by selected ion monitoring revealed that the serum concentration of quinolinic acid was markedly increased in chronic hemodialysis patients, and that the acid could be removed by conventional hemodialysis. The serum concentration of quinolinic acid was weakly but significantly correlated with the serum uric acid concentration. Accumulation of quinolinic acid in uremic blood may be involved in the pathogenesis of anemia, suppressed immune system, and uremic encephalopathy.

Adult↗
PubMed1991

[Effects of halothane on spinal dorsal horn WDR(wide dynamic range) neuronal activity in cats].

The effects of halothane (0.2%, 0.5%, and 1.0%) on the spinal dorsal horn wide dynamic range (WDR) neuronal activity was studied in either spinal cord intact or spinal transected cats. Extracellular activity was recorded in the dorsal horn from single WDR neurons responding to noxious and non-noxious stimuli applied to the cutaneous receptive fields on the left hind foot pads of intact or decerebrate, spinal cord transected (L 1-2) cats. When 10 micrograms of bradykinin was injected into the femoral artery ipsilateral to the recording site as the noxious test stimulus in the spinal cat, all of 7 WDR neurons gave excitatory responses which were not depressed by 0.2% and 0.5% halothane but were depressed significantly by 1.0%. On the other hand, when the injection of 10 micrograms of bradykinin into the femoral artery ipsilateral to the recording site was used in the intact cat, 7 of 14 WDR neurons (50%) gave excitatory responses, which were not depressed by 0.2% halothane but were significantly depressed by 0.5% and 1.0% halothane, and 7 of 14 WDR neurons (50%) gave inhibitory responses, which were significantly depressed by 0.2%, 0.5%, and 1.0% halothane. We have found that halothane reduces the excitation as well as the inhibition of dorsal horn WDR neuronal activity induced by bradykinin injection.

Animals↗
PubMed1991

[An analysis of factors associated with ectopic pregnancy following in vitro fertilization and embryo transfer].

Five ectopic pregnancies occurred in 75 in vitro fertilization and embryo transfer (IVF-ET) pregnancies (6.7%) in Ogikubo Hospital IVF program between 1985 and 1989. The indication for IVF in 70 pregnancies was a tubal factor. Thirty cases were among 70 pregnancies with hydrosalpinx, and 40 cases were with other tubal conditions. All of the five cases had tubal disease. Four of them had hydrosalpingos. The percentage of ectopic pregnancies for the 30 pregnancies with hydrosalpinx was 13.3%, while for 40 pregnancies with other tubal conditions it was 2.5%. However, there was no significant difference between the two groups. No correlation was found in other parameters including superovulatory methods, oocyte recovery procedure, number of embryos transferred, embryo transfer procedure, and endocrine changes after embryo transfer. In this study, we were unable to identify a difference between ectopic pregnancy and intra-uterine gestation in IVF-ET. However, further study is required to clarify whether hydrosalpinx increases the risk of ectopic pregnancy in IVF-ET.

Adult↗
PubMed1991

[Torsade de pointes ventricular tachycardia in a patient with acute myelocytic leukemia].

The anti-leukemic antibiotics, anthracyclines, are most effective agents in the treatment of acute leukemia. However, they have severe cardiac toxicities, which ordinarily shows dose-dependency, but sometimes produce acute cardiomyopathy. We experienced Torsade-de-pointes arrhythmia during the treatment of acute myelocytic leukemia (AML); The patient was a 28 year old woman and had an AML-M1. After the short course administration of daunorubicin (total 90 mg/m2) and aclarubicin (total 219 mg/m2), she suffered from an attack of Torsade-de-pointes ventricular tachycardia and passed away, since any treatment against ventricular arrhythmia was not effective. Autopsy studies revealed degeneration and atrophy of cardiac muscle in the area around His's bundle, which suggested an anthracycline-induced cardiac toxicity.

Aclarubicin↗
PubMed1991

[Clinical evaluation of sulbactam/cefoperazone for severe infections associated with hematological disorders].

The effectiveness of sulbactam/cefoperazone (SBT/CPZ) on severe infections associated with hematological diseases was evaluated in a nation-wide multicenter clinical study. SBT/CPZ (4-6 g/day), a 1:1 combination of SBT and CPZ, was given intravenously to 437 patients with hematological disorders. The underlying diseases included acute nonlymphocytic leukemia, acute lymphocytic leukemia, malignant lymphoma, multiple myeloma, myelodysplastic syndrome and others. Thus, 94.3% of the patients had hematological malignancies. The complicating infections included sepsis in 41 cases; sepsis suspected in 205; pneumonia in 47; urinary tract infection in 15; fever of unknown origin in 59; and others in 70. Clinical efficacies of SBT/CPZ were as follows; markedly effective, 83 cases; effective, 170; fairly effective, 59; and ineffective, 110. The efficacy rate (markedly effective plus effective) was 60.0% as a whole. The efficacy rate of SBT/CPZ in sepsis and suspected cases, which accounted for 56.3% of the infections, was 59%. Mild side effects such as skin rash were observed in 15 patients (3.1%). As for abnormal laboratory test results, transient increases in GOT, GPT, A1-P, LDH, etc. were observed in 42 patients (8.6%). Therefore, SBT/CPZ is considered to be a useful drug in empiric therapy for severe infections associated with hematological diseases.

Adolescent↗
PubMed1991

[Therapeutic effect of ranimustine(MCNU) on myeloproliferative disorder and chronic myelomonocytic leukemia].

Seventeen patients with myeloproliferative disorders and one patient with chronic myelomonocytic leukemia (CMMoL) were treated with ranimustine++ (MCNU), and the efficacy was evaluated. MCNU was given intravenously by drip infusion at an usual dose of 100 approximately 150 mg with intervals arranged according to the counts of peripheral blood cells. A complete remission was achieved in all 10 patients with chronic myelogenous leukemia (CML) in chronic phase. In three of patients with polycythemia vera (PV) the excellent effects were obtained, and the other 2 cases showed moderate effect. An excellent effect was obtained in both 2 patients with essential thrombocythemia (ET). A patient with CMMoL revealed partial remission. The overall efficacy rate was 100%. The cases with CML needed more long term and much more dose of the drug in order to get remission compared with PV and ET. After remission in both PV and ET, well controlled states were maintained for a relatively long period with no additional administration. In CMMoL, MCNU combined with 6-mercaptopurine also showed remarkable anti-tumor effects. It suggests that MCNU may be one of the useful drugs for the treatment of CMMoL. The side effects observed with MCNU were a slight degree of nausea and vomiting (28%), however they showed no trouble on carrying out the therapy.

Adult↗
PubMed1990

[Clinical effect of recombinant human G-CSF on neutropenia induced by chemotherapy for non-Hodgkin's lymphoma].

A clinical trial of recombinant human granulocyte colony-stimulating factor (rG-CSF), produced by Chinese hamster ovary cells, was conducted in 66 patients receiving intensive chemotherapy for non-Hodgkin's lymphoma. Each patient received 2 cycles of CHOP therapy, and one cycle of them was performed with rG-CSF treatment and another one without rG-CSF treatment, in a cross-over fashion. rG-CSF (0.4, 2, 5, 10 micrograms/kg/day) was given intravenously or subcutaneously to each patient for 14 days from 2 days after initiation of the chemotherapy. rG-CSF increased the absolute neutrophil counts (ANC) at nadir, and reduced the period of neutropenia with ANC less than 1,000/mm3 and also the period for restoration to ANC greater than or equal to 2,000/mm3 after initiation of chemotherapy. These effects were remarkable at doses of more than 5 micrograms/kg/day intravenously and 2 micrograms/kg/day subcutaneously. Fourteen infective episodes were observed during the cycles of chemotherapy without rG-CSF treatment, while 7 infective episodes were observed during the cycles with rG-CSF treatment. rG-CSF was well tolerated. These results demonstrated that rG-CSF was effective in neutropenia induced by cancer chemotherapy at a intravenous dose of 5 micrograms/kg/day and a subcutaneous does of 2 micrograms/kg/day.

Adult↗