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Biomedical subjects

K Urata

Publications and source records attributed to K Urata.

64 records · Page 4Linked to original sources
PubMed1984

Successful treatment of thyrotoxic crisis with plasma exchange.

A 36-yr-old woman with thyroid storm was successfully treated with plasma exchange. After the first plasma exchange, free serum thyroxine (T4) was decreased and serum thyroxine-binding globulin (TBG) was significantly increased. The decrease in the patient's free T4 level after plasma exchange can perhaps be attributed to T4's increased binding capacity. Plasma exchange may be an effective therapy for thyrotoxic crisis and should be performed immediately if conventional therapy fails to improve the patient's condition.

Adult↗
PubMed1984

The effects of the respiratory cycle by mechanical ventilation on cardiac output measured using the thermodilution method.

The feasibility of the thermodilution technique to measure cardiac output (CO) during positive pressure ventilation was assessed in 12 critically ill patients. An indicator (5 ml of 5% glucose in cold water) was injected at the mid and end of the inspiratory and expiratory phases of mechanical ventilation to see the effects of the respiratory cycle on thermodilution data. The 36 measurements at mid-inspiration yielded the smallest coefficient of variation (CV), 2.7%. The CV of 36 randomly selected measurements was 6.0%. CO at end-inspiration gave the highest value (p less than 0.05). These data suggested that one major disadvantage of the thermodilution method, the need for repeated measurement to minimize the variation in data, could be overcome by timing the injection according a certain phase of mechanical ventilation.

Adolescent↗
PubMedDate not supplied

Radiofrequency hyperthermia for malignant liver tumors: the clinical results of seven patients.

BACKGROUND/AIMS: Since 1991, we have performed radiofrequency hyperthermia combined with chemotherapy preliminarily for malignant liver tumors. MATERIALS AND METHODS: We were using the BSD-1000 Annular phased array system and monitored intratumoral, skin superficial and intrarectal temperature. The subjects consisted of five patients with hepatocellular carcinoma and two with metastatic liver cancer. All seven patients received therapy from once to five times, with a mean frequency of 3.3 +/- 1.3 (S.D) times. RESULTS: The maximum intratumoral temperature was 42.2 +/- 1.0 (S.D.) degrees of centigrade, the length that intratumoral temperature reached 41 degrees of centigrade was 17.1 +/- 6.9 (S.D.) minutes and the length that intratumoral temperature kept above 41 degrees of centigrade was 30.8 +/- 7.5 (S.D.) minutes. The skin superficial and intrarectal temperature were 39.3 +/- 1.1 (S.D.) degrees of centigrade, 40.3 +/- 1.8 (S.D.) degrees of centigrade, respectively. The most common complaints were nausea (28%) and dyspnea (14%). CONCLUSIONS: No severe side effects were observed, although one case experienced an abdominal skin burn. We thus found that it was possible to heat deepseated liver tumors safely.

Aged↗