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81.
82.
Stuart J. Lazarov 《World journal of urology》1998,16(6):384-385
At the time of publication of this journal, the Center for Urinary Control in Memphis, Tennessee, has performed eight office-based
surgical procedures using anesthesia. Patients were aged between 56 and 80 years, and all were ASA I–III class. The procedures
involved either cystoscopy with collagen injection into the bladder neck or cystoscopy with indigo laser treatment of the
prostate. All patients were prepared by the anesthesiologist prior to the day of surgery, and appropriate laboratory tests
were ordered and evaluated. All patients did very well, the surgical field was quiet, and each procedure went very smoothly.
Each patient tolerated anesthesia without any adverse effect, was recovered in an adjacent examination room, and was extremely
satisfied upon discharge from the office. Anesthesia was induced with Propofol (Diprivan) and sublimaze, maintained with a
Propofol infusion and oxygen. The surgeon performed a periprostatic block on the patient having the Indigo laser treatment. 相似文献
83.
Although viral respiratory tract infections may predispose to meningococcal disease, strong evidence that they do so exists only for influenza. Data on laboratory reported cases of respiratory syncytial virus (RSV) infections and meningococcal disease in England and Wales from mid-1989 to mid-1994 were analysed. Although the rise in RSV cases preceded the rise in meningococcal disease cases each winter, the interval between the rise and fall of the two diseases was inconsistent, no association was found between time series after removal of the seasonal component, and there was no evidence that more cases of meningococcal disease occurred in winters with more RSV disease. RSV may have less effect on the two most likely mechanisms whereby influenza predisposes to meningococcal disease, namely lowered immunity and impaired pharyngeal defences. 相似文献
84.
85.
86.
James G. Docherty Rosamund Carter Christopher D. Sheldon J. Stuart Falconer L. Christopher Bainbridge A. Gerard Robertson David S. Soutar 《Head & neck》1993,15(6):553-556
We examined the internal jugular veins in three groups of patients who had undergone (1) a functional neck dissection and radiotherapy, (2) a functional neck dissection alone, or (3) radiotherapy alone, using a noninvasive color Doppler ultrasound scan. The internal jugular veins were ultrasonically bilaterally normal in 18% of patients who had undergone a functional neck dissection and radiotherapy, in 88% of patients who had undergone a functional neck dissection alone, and in 57% of patients who had undergone radiotherapy alone. The combination of a functional neck dissection and radiotherapy significantly affected the internal jugular vein when compared with a functional neck dissection alone. 相似文献
87.
88.
Relationship between numbers of beta adrenergic receptors in lymphocytes and disease severity in asthma 总被引:7,自引:0,他引:7
Stuart M. Brooks M.D. Kathleen McGowan I. Leonard Bernstein M.D. Pamela Altenau Jesselyn Peagler 《The Journal of allergy and clinical immunology》1979,63(6):401-406
In order to assess the status of beta adrenergic receptors in bronchial asthma, binding studies using (−) [3H] dihydroalprenolol (DHA) were performed on lymphocytes of 10 control subjects and 11 stable asthmatic patients. Specific DHA binding was generally lower at all DHA concentrations in asthmatics. At 12 nM DHA concentration, specific DHA binding was 391 ± 40 fM/mg protein in controls and 263 ± 35 fM/mg protein for asthmatic subjects (p < 0.05). A highly statistically significant positive correlation between specific DHA binding (at 12 nM DHA) and FEV1/FVC% was observed (r = 0.93, p < 0.01), with those asthmatic subjects with the more severe airway obstruction and disease severity showing lower DHA binding. The results of the study suggest that a lymphocyte beta adrenergic receptor defect may be present among some patients with asthma. The magnitude of the receptor abnormality appears to be related to disease severity and degree of airway obstruction as measured by FEV1/FVC%. Documentation of drug consumption was made, and restriction of beta adrenergic agonists was attempted; theophylline and corticosteroids were the predominant drugs used in the study. Even with these precautions, it is possible that the differences in DHA binding observed among subjects are the results of greater drug (e.g., theophylline and corticosteroids) consumption by the clinically more severe patients. On the other hand, the lymphocyte receptor alteration noted may reflect a more general beta adrenergic receptor abnormality in bronchial asthma. 相似文献
89.
The purposes of this study were to apply the linear power versus inverse of time relationship to high-intensity upper-body
exercise and to assess the repeatability of the parameters critical power (CP) and anaerobic working capacity (AWC), using
limits of agreement (Bland and Altman 1986). Sixteen active male subjects (aged 20–34 years), performed two sets of five constant-power
exercises on an adapted cycle ergometer. There were no significant differences between mean estimates of CP [96 (16) W and
95 (17) W] and AWC [7457 (2011) J and 7608 (1684) J] from the first and second sets of bouts. Despite the lack of systematic
bias, there was evidence of large random error. Ratio limits of agreement for time to exhaustion during constant-power exercises
suggested that a repeat measurement might be expected in 95% of cases to be between 0.64 and 1.59 times the original measurement.
The 95% limits of agreement for CP were –15 W to +17 W. The ratio limits of agreement for AWC suggest that in 95% of cases
a repeat measurement might be between 0.57 and 1.67 times the original estimate. The results of this study suggest a poor
repeatability of constant-power upper-body exercises to exhaustion, which may contribute to a poor repeatability of CP and
AWC determined from the linear power versus inverse of time model.
Electronic Publication 相似文献
90.
The performance of biomedical implant devices is often limited by inappropriate tissue responses associated with synthetic materials used in device construction. Adverse healing responses, in particular the lack of an extensive vascular supply in the peri-implant tissue, are believed to lead to the ultimate failure of many of these medical devices. Accelerated formation of new blood vessels in the peri-implant tissue and within porous polymeric implants is hypothesized to improve the performance of such biomedical implant devices. The current study evaluated the use of cell-mediated, extracellular matrix modification of expanded polytetrafluoroethylene (ePTFE) to increase vessel growth in peri-implant tissue and within the pores of the implants. Discs of ePTFE were modified through cell-mediated matrix deposition using epithelial and endothelial cell lines with variable deposition of collagen types, fibronectin, and laminin types. Cell matrix-modified discs, Matrigel-coated discs, and nonmodified discs were implanted in both the adipose and subcutaneous tissues of the rat. Following a 5-week implant period, samples were removed and evaluated histologically and morphometrically for the presence of blood vessels in the peri-implant tissue and within the pores of the polymer as well as for the presence of activated macrophages and monocytes. A significantly increased presence of activated macrophages and monocytes was associated only with the samples modified with the matrix from a human microvessel endothelial cell line. Increased vessel density was identified in association with those ePTFE samples modified with either the 804-G, HaCaT, or II-4 cell matrices, all of which have extracellular matrices enriched in the protein laminin-5. 相似文献