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Objective To investigate the effect of 12 Fr catheter on the catheteration for the patients with prostatic hypertrophy after stroke. Methods One hundred and four sixteen patients with prostatic hypertrophy from urinary detention were divided into the control group (n=80) and the observation group (n=84) based on the odd and even numbers of admission date according to a digit random table. The control group received catheteration with a 14~20 Fr catheter, and the observation group did with a 12 Fr catheter. The two groups were compared in terms of pains, urethral injury and leakage of urine during intubation. Result The pain, urethral injury, leakage of urine in the observation group were all significantly lowered than those of the control group (all P<0.05). Conclusions 12 Fr catheter for catheteration for the patients with post-stroke prostatic hypertrophy can significantly reduce the degree of pain, the urethral injury and leakage of urine. Thus it is worthy of clinical application.
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BACKGROUND:In the treatment of teeth later fixed appliance, whether the expansion effect can be maintained? Whether the expansion in the process of mandibular rotation could be improved? Whether the high angle cases are suitable for rapid palatal expansion? OBJECTIVE:To sum the effect of rapid maxil ary expansion combined with fixed orthodontic technique on the occlusion craniofacial three-dimensional direction, hard and soft tissues and temporomandibular joint, as wel as its long-term stability. METHODS:The CNKI database, PubMed database and Wanfang database were searched for the academic journals and literatures on rapid maxil ary expansion combined with fixed appliance with the key words of“maxil ary expansion, fixed appliance, high angle, stable”. The analysis function of database was used. RESULTS AND CONCLUSION:Rapid maxil ary expansion can effectively obtain arch expansion, increase the arch width, and provide space of align teeth required. Fixed appliance can effectively control the tooth movement in three-dimensional space, precisely adjust the teeth, and make the tooth rows into the ideal arch form. Combination of these two kinds of appliances can obtain the complementary efficiency advantages of the appliances, and shorten the treatment course. Expansion can cause mandibular clockwise rotation and mandibular plane angle increasing, while with the application of upper and lower fixed appliance, the occluding relation between maxil a and mandible can be adjusted more precisely in order to make the mandibular first molar move to the maxil ary molar buccal, establish good occlusal relationship, so that decrease the mandibular plane angle. So the rapid maxil ary expansion combined with fixed orthodontic can be used appropriately in the treatment of the patients with high angle intraversion.
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Objective To monter radiation doses received in flight and keep aircrew from being radiated,in accordance with "The Basic Standard on Ionization Radiation Protection and Radiation Source Safety(GB 18871-2002) of China".A method for calculating radiation dose rate is described.Methods On the basis of a great deal empirical and calculated data,a fundamental calculating formula was derived to calculate cosmic radiation dose rate in aerosphere from sea level to altitude of 25 km.The cosmic radiation dose rate was a function of altitude,geomagnetic vertical cut off rigidity and Heliocentric potential.Results One hundred and thirty eight position of cosmic radiation effective dose rates of 10 km altitudes,various latitudes and various longitudes were calculated with this method,as well as compared to those calculated with CARI-6 software of Aviation Commission of USA.Their differences were within 12.56%.Conclusion It is showed that this method is sufficient to ensure a precision on the dose estimation for radiation protection of aviation flight.
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Objective To study the differences in serum antioxidant ion status of adults living in different regions and relat-ed influential factors.Methods Serum levels of total antioxidation capacity(TAOC),superoxide dismutase(SOD)and malon-dialdehyde(MDA)were determined in37local residents in Xinjiang(Xinjiang group)and37Tianjin residents(Tianjin group).Results Serum levels of TAOC and SOD were significantly higher in the Xinjiang group than that in the Tianjin group(P0.05)for the MDA between the two groups.The TAOC levels were sig-nificantly higher in the females than that in the males(P