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排序方式: 共有59条查询结果,搜索用时 15 毫秒
1.
Comparison of the haemodynamic effects of intermittent positive pressure ventilation with high frequency jet ventilation 总被引:1,自引:0,他引:1
The cardiorespiratory effects of intermittent positive pressure ventilation and high frequency jet ventilation with and without positive end expiratory pressure were compared in patients following valvular heart surgery (mitral and/or aortic). Twenty patients received intermittent positive pressure ventilation and high frequency jet ventilation with 0, 0.5 and 1.0 kPa positive end expiratory pressure. High frequency jet ventilation was well tolerated. The addition of 1.0 kPa positive end expiratory pressure was associated with preservation of the arterial oxygen tension without any increase in shunt or significant adverse haemodynamic effect. The results are discussed and compared with a previous study of high frequency jet ventilation following aortocoronary bypass graft surgery. 相似文献
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BELL J.; SARTAIN J.; WILKINSON G. A. L.; SHERRY K. M. 《British journal of anaesthesia》1994,73(2):162-166
We have compared the haemodynamic effects of an infusion ofpropofol 8mg kg1 h1 followed by 4mg kg1h1 and fentanyl 15µg kg1 (group 1) withmidazolam 36mg and fentanyl 60 µg kg1 (group2) in patients with a low cardiac output state undergoing cardiacsurgery. Heart rate was lower in group 1 throughout the periodbefore cardiopulmonary bypass. There were no significant differencesbetween the groups in other measured variables. Arterial pressuredecreased in both groups after induction, by 21% in group 1and 18% in group 2. Thermodilution assessment of right ventricularejection fraction was unchanged. Myocardial contractility wasnot affected adversely. Patients in group 1 who received aninfusion of propofol and a smaller dose of fentanyl awakenedsooner and the trachea was extubated earlier. 相似文献
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Summary An open, single centre study was carried out to evaluate the accuracy of the SpuncritTM (Micro Diagnostics, Bethlehem, PA, USA) infra-red analyser which can be used for near-patient testing to measure haematocrit and estimate haemoglobin concentration. The primary comparison was with the Sysmex NE1500 (Tao Medical) analyser situated in the main hospital laboratory. Secondary comparison was with the Ciba Corning 288 (Ciba Corning Diagnostics Ltd, Halstead, UK) blood gas analyser currently used for near-patient testing in the Northern General Hospital. A total of 217 samples from 50 patients was analysed. The Pearson's correlation coefficients for haematocrit and haemoglobin concentration between the SpuncritTM and Sysmex NE1500 and between the SpuncritTM and Ciba Corning 288 were all close, between 0.85 and 0.92. The method of Bland and Altman was used to asses agreement between the results of the SpuncritTM and the Sysmex NE1500. The agreement for haematocrit was good with 2 SD of the SpuncritTM results being between – 5.66 and +4.42% of the measurement from the Sysmex NE1500. In conclusion, the SpuncritTM haematocrit measurement agreed well with results from the central laboratory, but the estimated haemoglobin concentrations agreed less well and three reasons are discussed. 相似文献
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COMPARISON OF THE HAEMODYNAMIC EFFECTS OF ENOXIMONE AND PIROXIMONE IN PATIENTS AFTER CARDIAC SURGERY 总被引:1,自引:1,他引:0
PATEL A.; CALDICOTT L. D.; SKOYLES J. R.; DAS P.; SHERRY K. M. 《British journal of anaesthesia》1993,71(6):869-872
We have compared the haemodynamic effects of the imidazole derivativephosphodiesterase inhibitors enoximone and piroximone in patientswith low cardiac output after cardiac surgery. Ten patients(group E) received enoximone and 10 patients (group P) receivedpiroximone, both at a loading dose of 0.5 mg kg1 followedby an infusion of 5 µg kg1 min1. In bothgroups the main changes with time were increases in cardiacindex (maximum 24.5% in group E, 25.8% in group P) and decreasesin systemic vascular resistance (maxi mum 26.8% in group E and24.8% in group P). There were moderate increases in heart rate(maximum 11.3% in group E and 13% in group P) but a greaterpercentage decrease in mean arterial pressure in group E (maximum11.9% vs 7.9%) with time. One patient in group E developed hypertensionduring the loading dose. Two patients in group E and two ingroup P developed hypotension during the loading dose. One patientin group E developed ventricular extras ystoles which may havebeen related to the drug being studied. (Br. J. Anaesth. 1993;71: 869872) 相似文献
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The mechanism of clot dissolution by plasmin 总被引:60,自引:16,他引:44
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SHERRY JILL TUCKER BA 《Journal of obstetric, gynecologic, and neonatal nursing : JOGNN / NAACOG》1977,6(5):40-48
The clinical and experimental literature on the menopause is comprehensively reviewed from 1930 to the present. The syndrome and its incidence are described, along with the diverse biological, psychological, and cultural views on etiology. Hormone therapy is deemed to be central. All these views are synthesized to help answer the question: How much soma and how much psyche? The menopausal syndrome is documented and shown to have historically different etiologies, culminating in a compromise theory. 相似文献
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