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1.
In order to test their value in urinary infection a double-blind trial was carried out using ampicillin, cephalexin, trimethoprim-sulphamethoxazole (co-trimoxazole), and trimethoprim. Eighty-three courses of treatment were given to hospital patients, 149 to pregnant women, and 107 to patients with dysuria and frequency seen in domiciliary practice. Thus infections of varying severity in defined groups of patients caused by organisms with different antibiotic sensitivities were treated.Analysis of the overall results (339 courses) was compared with those from the individual groups and considerable variation in response was found. In domiciliary infections and bacteriuria in pregnancy trimethoprim alone proved to be at least as effective as the other three compounds and caused fewer than half the number of side effects. In the hospital patients co-trimoxazole was superior to trimethoprim.The overall results for ampicillin and cephalexin were similar although cephalexin proved to be inferior in treating symptomatic domiciliary infections.  相似文献   

2.
Cephalexin was compared with ampicillin in the treatment of urinary tract infections by a random double-blind technique. Both drugs were found to be equally effective. In 21 out of 31 patients treated with cephalexin and in 20 out of 31 treated with ampicillin the urine was sterile three weeks after starting therapy. The bacteriological findings at one and eight weeks were also similar in both groups. No serious adverse reactions were attributable to cephalexin, which seemed to be tolerated rather better than ampicillin.  相似文献   

3.
J Labbé 《CMAJ》1984,131(10):1229-1233
Two types of prophylaxis of urinary tract infection with trimethoprim-sulfamethoxazole (TMP-SMZ) were studied in 72 children with recurrent urinary tract infections or vesicoureteral reflux or both. Daily prophylaxis only was used in 36 children and thrice-weekly prophylaxis only in 25 others, and 11 children received successively both types of prophylaxis. The same dosage was used in all cases: 2 mg/kg of TMP and 10 mg/kg of SMZ, given at bedtime. With daily prophylaxis the infection rate over 556 patient-months was 5.4 cases per 1000 patient-months, compared with 285.4 cases in the year before prophylaxis; side effects were noted in 11% of the patients during treatment. With thrice-weekly prophylaxis the infection rate over 381 patient-months was 15.7 cases per 1000 patient-months, compared with 313.6 cases in the year before prophylaxis; only 3% of the patients receiving this treatment had a side effect that was possibly drug-related. These results indicate that effective prophylaxis of urinary tract infection in children can be obtained with these two types of treatment.  相似文献   

4.
Eighteen patients with urinary tract infection were treated with cephalexin orally. Absorption was variable, between 29 and 89% of the total daily dose being excreted in the urine in 24 hours. A significant number of patients became faecal carriers of Pseudomonas aeruginosa compared with a control group who received no antibiotics. Four of the cephalexin-treated patients acquired a strain of Ps. aeruginosa known to be present in food from the hospital diet kitchen and one developed a urinary tract infection with this strain.  相似文献   

5.
Trimethoprim is inhibitory for a wide range of bacteria, and when used in combination with a sulphonamide marked synergy has been reported.In order to test its value in the treatment of urinary infections 154 hospital patients with infections of varying severity and due to a wide range of organisms were treated with combinations of sulphamethoxazole and trimethoprim. Combinations of these substances in two different ratios (2:1 and 10:1) were used in 113 patients, and one week after the end of treatment about three-quarters were cured by both combinations. In a second study 106 patients were treated with a sulphamethoxazole-trimethoprim combination (5:1), ampicillin, or sulphadimidine. The cure rate with the 5:1 combination was higher than that found with ampicillin or sulphadimidine both one week after finishing treatment (sulphamethoxazole-trimethoprim 85%, ampicillin 70%, sulphadimidine 40%) and at the fourth- to fifth-week follow-up (sulphamethoxazole-trimethoprim 67%, ampicillin 52%, sulphadimidine 15%).The results obtained with the various sulphamethoxazole–trimethoprim combinations did not indicate that a particular ratio was superior for treating urinary infections in general or for those caused by any particular species of organism.Laboratory studies showed that many bacteria causing urinary infections in hospital were sensitive to trimethoprim, and the therapeutic results could have been largely predicted from a knowledge of the in-vitro sensitivity tests to trimethoprim alone. For example, sulphamethoxazole–trimethoprim in the treatment of Proteus mirabilis infections was less successful than in those due to Escherichia coli, and this finding was clearly reflected in the higher minimal inhibitory concentrations for trimethoprim of Pr. mirabilis.The sulphamethoxazole–trimethoprim combination was simple to administer, free from side-effects, and gave satisfactory results in the treatment of urinary infections that occurred in hospital patients.  相似文献   

6.
目的研究风湿性疾病中尿路感染大肠埃希菌对左氧氟沙星耐药性及相关危险因素。方法中国医科大学附属第一医院风湿免疫科2009年1月至2013年12月125株住院患者清洁中段尿培养所分离出大肠埃希菌,依据是否耐药分为两组。分析耐药组相关危险因素。结果 5年来大肠埃希菌对左氧氟沙星耐药率呈逐渐上升趋势。耐药组对氨苄西林、环丙沙星、头孢曲松、哌拉西林、复方新诺明的耐药率高于非耐药组,两组间差异有统计学意义(P〈0.05)。慢性病程、既往喹诺酮类药物应用史、既往尿路感染、菌株产ESBLs为耐药危险因素。各风湿性疾病间耐药率比较差异未见统计学意义。结论风湿性疾病尿路感染危险因素与其他疾病尿路感染危险因素类似。临床工作中应加强对危险因素监视和控制。  相似文献   

7.
目的:探讨低频电刺激联合间歇导尿及Motomed运动训练对脊髓损伤致神经源性膀胱患者膀胱内压力及膀胱容量的影响。方法:选取我院2015年12月~2018年2月收治的脊髓损伤致神经源性膀胱患者92例,根据随机数字表法将其分为对照组(n=46)与研究组(n=46)。两组均给予间歇性导尿、盆底肌训练、膀胱功能训练等常规干预,对照组在此基础上采取低频电刺激,研究组于对照组基础上采取Motomed运动训练,两组均干预2个月。比较两组的临床疗效、治疗前及治疗2个月后的排尿情况(日均单次排尿量、日单次最大排尿量、日均排尿次数)、尿动力学情况(最大尿流率、膀胱容量、残余尿量、膀胱内压力)、LUTS(国际下尿路症状评分)及USDS(泌尿症状困扰评分)。结果:治疗后,研究组总有效率(93.48%)显著高于对照组(78.26%)(P0.05);治疗2个月后,两组日均单次排尿量、日单次最大排尿量、日均排尿次数、最大尿流率、膀胱容量、膀胱内压力均较治疗前显著增多,且研究组以上指标均明显高于对照组(P0.05);两组LUTS及USDS分值均较治疗前显著降低,且研究组以上指标均显著低于对照组(P0.05)。结论:间歇导尿联合低频电刺激与Motomed运动训练可有效改善脊髓损伤致神经源性膀胱患者尿动力学状态及排尿情况,增大膀胱容量及膀胱内压力等,缓解下尿路症状及泌尿症状困扰程度,提高治疗效果。  相似文献   

8.
目的了解湖州市中心医院嗜麦芽寡养单胞菌临床分布特征与耐药性。方法采用常规方法分离,用VITE-COMPACT2全自动微生物分析仪进行菌种鉴定,用K—B法进行药敏试验。结果分离到嗜麦芽寡养单胞菌810株,复方新诺明耐药菌株48株(分离率5.9%)。标本来源主要来自ICU室,其次呼吸科,大部分来自痰液标本(约占89.2%),年龄段以中老年人比率最高。嗜麦芽寡养单胞菌对亚胺培南、美罗培南、头孢吡肟、哌拉西彬他坐巴坦、庆大霉素、妥布霉素、阿米卡星高度耐药;头孢他啶、替卡西林/克拉维酸、环丙沙星耐药率为33.7%~58.2%;头孢哌酮/舒巴坦、左氧氟沙星、米诺环素、复方新诺明耐药率低于30.0%。复方新诺明耐药菌株对头孢哌酮/舒巴坦、左氧氟沙星和米诺环素耐药率分别为60.4%、91.7%和2.0%,对其余抗菌药物耐药率达100.0%。复方新诺明耐药菌株与复方新诺明敏感菌株相比,耐药情况更严重,其中对三、四代头孢菌素、喹诺酮类耐药率显著高于复方新诺明敏感菌株(P〈0.01);对碳青霉烯类、青霉素类、氨基糖苷类抗菌药物耐药率与复方新诺明敏感菌株相比,差异无统计学意义(P〉0.05)。结论嗜麦芽寡养单胞菌呈高度耐药,对头孢哌酮/舒巴坦、左氧氟沙星、米诺环素、复方新诺明尚敏感,但对复方新诺明耐药的嗜麦芽寡养单胞菌耐药现象更严重。应重视嗜麦芽寡养单胞菌引起的院内感染,尽量减少不必要的侵人性操作,加强抗菌药物的合理规范使用。  相似文献   

9.
Background:This study aims to specify the antimicrobial resistance pattern and virulence genes of Enterococcus faecalis isolated from urinary tract infections in Shahrekord, Iran. Methods:Urine samples of 1000 people suspected of having urinary tract infections referred to Shahrekord medical diagnostic laboratories were examined. Biofilm assays were performed by microtiter plate test through reading the OD490. Polymerase Chain Reaction (PCR) was applied to study the virulence factors.Results:Enterococcus faecalis was detected in 60 samples. After performing microbiological tests, all samples were positive in the molecular analysis. Strong, moderate and weak biofilm reactions reported 66.67%, 25%, and 8.33% respectively. The most resistance reported to cotrimoxazole, vancomycin and amikacin and the lowest resistance to nitrofurantoin (8.33%) was reported. Statistical analysis with Fisher''s exact test showed a statistically significant relationship between biofilm production and resistance to cotrimoxazole, vancomycin and cefotaxime. Prevalence of efe A, ace, gel E, esp, cyl M, agg, cyl A and cyl B in strong biofilm formation isolates was reported 100%, 87.5%, 82%, 62.5%, 55%, 37.5% 25% and 22.5% respectively. There was a significant relationship between the frequency of efa A and strong biofilm reaction.Conclusion:The presence of E. faecalis strains resistant to co-trimoxazole and vancomycin and present of some virulence factors is alarming the researchers. Since antibiotic resistance genes are probably transmitted among enterococci, and Staphylococci, controlling infections made by enterococci as well as the appropriate administration of antibiotics could treat the nosocomial infections effectively.Key Words: Antibiotic Resistance, Enterococcus faecalis, Urinary Tract Infection, Virulence genes  相似文献   

10.
The kinetics of growth and formation of biofilm by Staphylococcus aureus were investigated under iron-limited conditions in the chemostat. The population of planktonic cells reached 5.5 x 10(9) cells/mL 24 h after inoculation (D = 0.05 h-1) and remained constant throughout. The number of biofilm cells of S. aureus colonizing the silicone tubing increased exponentially from 6 x 10(4) to 2.7 x 10(7) cells/cm2 (6 days later) and continued to increase at a reduced rate to 2.7 x 10(8) cells/cm2 on day 13. Planktonic cells of S. aureus were susceptible to tobramycin and cephalexin. The planktonic cells could be successfully eradicated with a combination of 5 micrograms tobramycin plus 100 micrograms cephalexin per millilitre. Exposure of young biofilm cells of S. aureus to 5 micrograms tobramycin plus 100 micrograms cephalexin per millilitre resulted in a rapid loss of cell viability. The percentage of survival dropped to less than 0.0001% after exposure to these concentrations of antibiotics for 3 h. Old biofilm cells of S. aureus were found to be extremely resistant to these antibiotics. The cell viability was reduced to 0.09% after exposure to 10 micrograms tobramycin plus 100 micrograms cephalexin per millilitre. The results suggest that it is possible to eradicate S. aureus infection at the early stage with tobramycin plus cephalexin. Any delay in implementing antibiotic therapy is likely to result in the failure of the treatment. It is important to note that the concentrations of antibiotics required for the eradication of young biofilm cells must be determined for the treatment of device-associated infections.  相似文献   

11.
目的:观察生物反馈电刺激联合Kegel训练对产后盆底功能障碍性疾病(PFD)患者盆底功能电生理指标和生活质量的影响。方法:研究对象为2018年3月~2020年12月我院收治的80例产后PFD患者。采用双色球随机分组法将患者分为对照组(n=40)和研究组(n=40)。对照组给予Kegel训练,研究组给予生物反馈电刺激联合Kegel训练,两组均治疗8周。对比两组治疗8周后的疗效和尿失禁、盆底器官脱垂程度的改善情况。对比两组治疗前、治疗8周后的盆底功能电生理指标、日常生活质量和性生活质量。结果:治疗8周后,研究组的临床总有效率较对照组高(P<0.05)。治疗8周后,研究组I类肌纤维疲劳度、Ⅱ类肌纤维疲劳度、快肌最大肌电值及阴道动态压力均优于对照组(P<0.05)。研究组治疗8周后尿失禁、盆底器官脱垂程度的改善情况优于对照组(P<0.05)。治疗8周后,研究组盆底功能影响问卷简表(PIFQ-7)评分、盆腔器官脱垂-尿失禁性功能问卷(PISQ-12)评分均低于对照组(P<0.05)。结论:产后PFD患者采用生物反馈电刺激联合Kegel训练治疗疗效明确,可促进尿失禁、盆底器官脱垂程度情况及盆底功能改善,提高患者日常生活质量和性生活质量。  相似文献   

12.
OBJECTIVE--To investigate the effects of phenoxymethylpenicillin and erythromycin on urinary isolates from patients with untreated asymptomatic bacteriuria. DESIGN--Retrospective study of subgroup of patients from cohort followed up till the end of 1986. SETTING--Outpatient clinic for children with urinary tract infections. PATIENTS--51 Girls aged under 15 with untreated asymptomatic bacteriuria. INTERVENTIONS--Before 1982 intercurrent infections (mostly tonsillitis or otitis) were treated with phenoxymethylpenicillin; after 1982 erythromycin treatment was preferred. END POINTS--Change of bacterial strain in urinary tract and symptomatic recurrences of disease. MEASUREMENTS AND MAIN RESULTS--Bacteria identified by serotype and electrophoretic type and compared before and after antibiotic treatment. Bacteriuria eradicated and replaced by new strains in most patients treated with phenoxymethylpenicillin, leading to symptomatic recurrences in about 15%. Conversely, patients given erythromycin rarely showed change in bacteriuria and none suffered symptomatic recurrence. CONCLUSIONS--In girls with untreated asymptomatic bacteriuria the use of phenoxymethylpenicillin for intercurrent infections may lead to a change of urinary bacteria and leave them at substantial risk of acute pyelonephritis. With erythromycin this risk is small (2/20 courses in this series).  相似文献   

13.
Recent studies have identified a 24 h rhythm in the expression and function of PEPT1 in rats, with significantly higher levels during the nighttime than daytime. Similarly, temporal variations have been described in glomerular filtration rate and renal blood flow, both being maximal during the activity phase and minimal during the rest phase in laboratory rodents. The aim of this study was to assess the hypothesis that the absorption of the first-generation cephalosporin antibiotic cephalexin by dogs would be less and the elimination would be slower after evening (rest span) compared to morning (activity span) administration, and whether such administration-time changes could impair the medication's predicted clinical efficacy. Six (3 male, 3 female; age 4.83+/-3.12 years) healthy beagle dogs were studied. Each dog received a single dose of 25 mg/kg of cephalexin monohydrate per os at 10:00 and 22:00 h, with a two-week interval of time between the two clock-time experiments. Plasma cephalexin concentrations were determined by microbiological assay. Cephalexin peak plasma concentration was significantly reduced to almost 77% of its value after the evening compared to morning (14.52+/-2.7 vs. 18.77+/-2.8 microg/mL) administration. The elimination half-life was prolonged 1.5-fold after the 22:00 h compared to the 10:00 h administration (2.69+/-0.9 vs. 1.79+/-0.2 h). The area under the curve and time to reach peak plasma concentration did not show significant administration-time differences. The duration of time that cephalexin concentrations remained above the minimal inhibitory concentrations (MIC) for staphylococci susceptiblity (MIC=0.5 microg/mL) was>70% of each of the 12 h dosing intervals (i.e., 10:00 and 22:00 h). It can be concluded that cephalexin pharmacokinetics vary with time of day administration. The findings of this acute single-dose study require confirmation by future steady-state, multiple-dose studies. If such studies are confirmatory, no administration-time dose adjustment is required to ensure drug efficacy in dogs receiving an oral suspension of cephalexin in a dosage of 25 mg/kg at 12 h intervals.  相似文献   

14.
Cephalexin, a New Orally Absorbed Cephalosporin Antibiotic   总被引:12,自引:5,他引:7       下载免费PDF全文
A new antibiotic, structurally related to cephaloglycin, has been assigned the generic name cephalexin, 7-(D-alpha-amino-alpha-phenylacetamido)-3-methyl-3-cephem-5-carboxylic acid. In vitro antimicrobial activity of cephalexin does not equal that of cephaloglycin. However, excellent oral absorption and lack of serum binding of cephalexin compensates significantly for the lower in vitro activity. Exceptional efficacy against experimental bacterial infections in mice was obtained with cephalexin therapy as compared with cephaloglycin, tetracycline, and chloramphenicol. The data suggest that cephalexin merits clinical trial.  相似文献   

15.
An enzyme which catalyzes the synthesis of cephalexin fromD -α phenylglycinemethylester (PGM) and 7-amino-3-desacetoxy-cephalosporanic acid (7-ADCA) was prepared from Xanthomonas citri (IFO 3835) and partially purified 30-fold by ammonium sulfate fractionation, DEAE-cellulose, and Sepharose-4B column chromatography. The Km values for 7-ADCA, PGM, and cephalexin were determined as 11.1, 2.1, and 1.61 mM, respectively. The enzymatic cephalexin synthesis follows the reversible bi-uni reaction kinetics. The equilibrium constant is influenced by the initial mole ratios of 7-ADCA and PGM. The cephalexin hydrolysis is catalyzed by the same cephalexin synthesizing enzyme, but methanol does not participate in the hydrolytic reaction. The amount of enzyme in the reaction mixture affects the initial rate but does not influence the equilibrium product concentration. This cephalexin-synthesizing enzyme was immobilized onto several adsorbents. Among these, Kaolin and bentonite showed a higher retention of enzyme activity and stability for reuse. The immobilized-enzyme reaction kinetics were investigated and compared with those of the soluble enzyme. A rate expression for the enzymatic synthesis of cephalexin was derived. The results of computer simulation showed good agreement with the experimental results.  相似文献   

16.
目的:探讨预防性应用抗生素对糖皮质激素治疗老年特发性血小板减少性紫癜并发感染的影响。方法:将哈尔滨医科大学附属第二医院血液科2012年3月~2015年3月的收治的72例老年特发性血小板减少性紫癜患者随机分为两组,自应用糖皮质激素第一天开始观察15天,观察组自应用糖皮质激素开始即使用抗生素,对照组不常规应用抗生素,以出现感染症状即开始应用抗生素,同时定为观察终止。比较两组患者感染发生率的差异。结果:观察组感染发生率为38.89%,对照组为69.44%,较观察组显著升高,差异有统计学意义(P0.05)。两组患者感染发生部分的分布情况比较无统计学差异(P0.05),以呼吸系统感染发生率最高,其次是尿路感染。结论:预防性的使用抗生素可以降低糖皮质激素治疗老年特发性血小板减少性紫癜患者过程中感染的发生率。  相似文献   

17.
The epidemiology of symptomatic infections of the urinary tract in children and the factors that may alter the risk of infection are not well known. Numbers of children aged under 15 discharged from hospitals because of symptomatic infections of the urinary tract during 1978-84 were obtained from the database kept by the Finnish National Board of Health. Information on continuous treatment for recurrent urinary tract infections was obtained from records kept by the Social Insurance Institution on patients receiving free medicines. The yearly rate of attacks of symptomatic infections/1000 girls decreased significantly from 2.67 (95% confidence interval 2.52 to 2.82) in 1978 to 1.88 (1.76 to 2.01) in 1984. In boys the rate also decreased significantly, from 0.85 (0.77 to 0.93) in 1978 to 0.59 (0.52 to 0.66) in 1984. The period prevalence of free treatment/1000 girls decreased significantly from 7.80 (7.55 to 8.05) in 1978 to 5.30 (5.10 to 5.51) in 1984 but did not change significantly in boys. Although the findings may partly have been caused by changes in policies of admission to hospital, they suggest a decreasing trend in symptomatic urinary tract infections in childhood, which may be associated with changes in the care of infants.  相似文献   

18.
Recent studies have identified a 24 h rhythm in the expression and function of PEPT1 in rats, with significantly higher levels during the nighttime than daytime. Similarly, temporal variations have been described in glomerular filtration rate and renal blood flow, both being maximal during the activity phase and minimal during the rest phase in laboratory rodents. The aim of this study was to assess the hypothesis that the absorption of the first‐generation cephalosporin antibiotic cephalexin by dogs would be less and the elimination would be slower after evening (rest span) compared to morning (activity span) administration, and whether such administration‐time changes could impair the medication's predicted clinical efficacy. Six (3 male, 3 female; age 4.83±3.12 years) healthy beagle dogs were studied. Each dog received a single dose of 25 mg/kg of cephalexin monohydrate per os at 10∶00 and 22∶00 h, with a two‐week interval of time between the two clock‐time experiments. Plasma cephalexin concentrations were determined by microbiological assay. Cephalexin peak plasma concentration was significantly reduced to almost 77% of its value after the evening compared to morning (14.52±2.7 vs. 18.77±2.8 µg/mL) administration. The elimination half‐life was prolonged 1.5‐fold after the 22∶00 h compared to the 10∶00 h administration (2.69±0.9 vs. 1.79±0.2 h). The area under the curve and time to reach peak plasma concentration did not show significant administration‐time differences. The duration of time that cephalexin concentrations remained above the minimal inhibitory concentrations (MIC) for staphylococci susceptiblity (MIC=0.5 µg/mL) was>70% of each of the 12 h dosing intervals (i.e., 10∶00 and 22∶00 h). It can be concluded that cephalexin pharmacokinetics vary with time of day administration. The findings of this acute single‐dose study require confirmation by future steady‐state, multiple‐dose studies. If such studies are confirmatory, no administration‐time dose adjustment is required to ensure drug efficacy in dogs receiving an oral suspension of cephalexin in a dosage of 25 mg/kg at 12 h intervals.  相似文献   

19.
Daily changes in plasma levels and in urinary excretion of rubidium in man were compared with variations of other elements, particularly potassium. Plasma rubidium levels showed a daily cycle similar to potassium, and the urinary excretion of the two elements was 60–70% higher in the daytime. Among the other elements tested, daily plasma variations were observed only with Na, Zn, and Fe.  相似文献   

20.

Objective

To investigate whether compliance of patients to antibiotic treatment is better when antibiotics are administered once than multiple times daily.

Methods

We performed a systematic search in PubMed and Scopus databases. Only randomized controlled trials were considered eligible for inclusion. Compliance to antibiotic treatment was the outcome of the meta-analysis.

Results

Twenty-six studies including 8246 patients with upper respiratory tract infections in the vast majority met the inclusion criteria. In total, higher compliance was found among patients treated with once-daily treatment than those receiving treatment twice, thrice or four times daily [5011 patients, RR=1.22 (95% CI, 1.11, 1.34]. Adults receiving an antibiotic once-daily were more compliant than those receiving the same antibiotic multiple times daily [380 patients, RR=1.09 (95% CI, 1.02, 1.16)]. Likewise, children that received an antibiotic twice-daily were more compliant than those receiving the same antibiotic thrice-daily [2118 patients, RR=1.10 (95% CI, 1.02, 1.19)]. Higher compliance was also found among patients receiving an antibiotic once compared to those receiving an antibiotic of different class thrice or four times daily [395 patients, RR=1.20 (95% CI, 1.12, 1.28)]. The finding of better compliance with lower frequency daily was consistent regardless of the study design, and treatment duration.

Conclusion

This meta-analysis showed that compliance to antibiotic treatment might be associated with higher when an antibiotic is administered once than multiple times daily for the treatment of specific infections and for specific classes of antibiotics.  相似文献   

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