Yoshihiro Kosaka

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We evaluated the postoperative pain relief and side-effects of continuous epidural infusion of three analgesic regimens following major thoracic and/or abdominal surgery. One hundred and twenty patients were randomly divided into three treatment groups: (1) 0.25% or 0.5% bupivacaine at a rate of 3–7 ml·hr−1, (2) 0.01% morphine at a rate of 1–2 ml·hr−1, (3)(More)
This paper explores a method for creating large-scale urban 3D models using Historical GIS data. The method is capable of automatically generating realistic VR models based on GIS data at a low cost. 3D models of houses are created from polygon data, fences from line data, and pedestrians and trees from point data. The method is applied to the Virtual Kyoto(More)
Recent advance in ubiquitous technology has led the development of ubiquitous sensor environment in which various kinds of sensor devices provide sensor data. In this environment, since an enormous number of sensor devices join the network, it is effective to construct a P2P network for efficient retrieval of sensor data. In general, each sensor device(More)
The effect of differential lung ventilation (DLV) on afferent vagal and efferent phrenic nerve activities was studied in urethane anesthetized cats. One endotracheal tube was inserted into the left bronchus to ventilate its side lung. Another tube was inserted until its tip reached about 1 cm above the carina to ventilate the right lung. Using two(More)
With the recent increase in the incidence of multiple pregnancy as a result of ovulation induction, the demand for appropriate anesthetic management in multiple pregnency has also increased. Multiple pregnancy is accompanied by several problems and is associated with substantially increased risk of maternal, fetal, and neonatal mortality and morbidity. 1(More)
We evaluated in analgesic and sedative effects of continuous epidural infusion of two analgesic regimens in ventilated patients following esophagectomy. Fortysix patients, divided into two treatment groups, received postoperative continuous epidural infusion of morphine, or that of a combination of bupivacaine and morphine. Assessments were made with the(More)
We investigated the effects of high-frequency jet ventilation (HFJV) on heart rate variability in nine patients during fentanyl (10μg·kg−1) anesthesia using power spectral density analysis. ECG and arterial pressure were recorded during intermittent positive pressure ventilation (IPPV) (tidal volume 8 ml·kg−1, respiratory rate 0.25 Hz) and during HFJV [5(More)
To assess the effect of postoperative continuous thoracic epidural infusion of bupivacaine on pulmonary function, a prospective randomized study was conducted in patients undergoing upper abdominal surgery (UAS). Sixteen patients, divided into two treatment groups, received continuous epidural infusion of 0.25% bupivacaine at a rate of 2–5 ml·hr−1, or that(More)
This paper explores a method for creating large-scale urban 3D models from GIS spatial data. It is capable of automatic generation of realistic VR models based on existing GIS data. Parametric 3D models of houses are created from polygon data, fences from line data, and pedestrians and trees from point data. The method is applied to the project(More)
Pancuronium bromide is a widely used muscle relaxant having little side-effect on cardiovascular sytem and -inducing no or little release of histamine. However, six cases of anaphylactoid reactions due to histamine release has been reported. This paper presents a recently encountered case of anaphylactoid reactions to pancuronium bromide with clinical(More)