Xyloglucan, hibiscus and propolis to reduce symptoms and antibiotics use in recurrent UTIs: a prospective study.

Aim: To evaluate the efficacy of a medical device containing xyloglucan, hibiscus and propolis in the management of recurrent urinary tract infections (rUTIs). Patients & methods: Sixty-one women affected by rUTIs received this medical device, one capsule a day for 15 days (one cycle every month, for 6 months), in an observational, prospective study. Clinical and microbiological evaluations were performed at baseline and 1, 3 and 6 months from enrolment. Results: At first follow-up, 41 reported a clinical improvement and a return to their clinical status before UTI, while 47 and 51 did so at the second and third follow-up evaluations. A statistically significant clinical improvement was reported at each follow-up visit (quality of life [QoL] 94.2 vs 98.6; QoL 94.1 vs 98.7; QoL 94.2 vs 99.1; p < 0.001). A statistically significant reduction in antibiotic use was reported. Conclusion: This medical device is able to improve quality of life in women with rUTIs, reduce recurrences and antibiotic use.

Asymptomatic bacteriuria treatment is associated with a higher prevalence of antibiotic resistant strains in women with urinary tract infections.

BACKGROUND: Women suffering from recurrent urinary tract infections (rUTIs) are routinely treated for asymptomatic bacteriuria (AB), but the consequences of this procedure on antibiotic resistance are not fully known. The aim of this study was to evaluate the impact of AB treatment on antibiotic resistance among women with rUTIs. METHODS: The study population consisted of 2 groups of women who had previously been enrolled in a randomized clinical trial: group A was not treated, and group B was treated. All women were scheduled for follow-up visits every 6 months, or more frequently if symptoms arose. Microbiological evaluation was performed only in symptomatic women. All women were followed up for a mean of 38.8 months to analyze data from urine cultures and antibiograms. RESULTS: The previous study population consisted of 673 women, but 123 did not attend the entire follow-up period. For the final analysis, 257 of the remaining 550 patients were assigned to group A, and 293 to group B. At the end of follow-up, the difference in recurrence rates was statistically significant (P < .001): 97 (37.7%) in group A versus 204 (69.6%) in group B. Isolated Escherichia coli from group B showed higher resistance to amoxicillin-clavulanic acid (P = .03), trimethoprim-sulfamethoxazole (P = .01), and ciprofloxacin (P = .03) than that from group A. CONCLUSIONS: This study shows that AB treatment is associated with a higher occurrence of antibiotic-resistant bacteria, indicating that AB treatment in women with rUTIs is potentially dangerous.

Solidago, orthosiphon, birch and cranberry extracts can decrease microbial colonization and biofilm development in indwelling urinary catheter: a microbiologic and ultrastructural pilot study.

PURPOSE: Plants extracts are used in urology to manage urinary tract infections. We aimed to evaluate the efficacy of a preparation with solidago, orthosiphon, birch and cranberry extracts (CISTIMEV PLUS(®)) in reducing microbial colonization and biofilm development in patients with indwelling urinary catheters. METHODS: All consecutive outpatients attending our department between January and June 2010 for the substitution of indwelling catheters were considered for this single-blinded, randomized and controlled pilot study to test superiority of the preventative management (CISTIMEV PLUS(®), 1 tablet daily for 30 days) in respect to no treatment. A sample size of 10-40 participants per group was considered adequate. All patients underwent urine culture the same day of the catheter substitution and were then randomized into test group (n = 48) and control group (n = 35). Ultrastructural analysis was also performed. After 30 days, the catheter was replaced and the analysis repeated. The primary outcome was the rate of positive urinary culture at the end of the entire study period. RESULTS: Ten patients abandoned the study. At 30 days, according to per-protocol analysis, the groups statistically differed regarding the rate of positive urine cultures: test group 10/43 and control group 16/30 (p = 0.013) (-30.1 % [95 % CI -51.94 to -8.21]). The most common isolated bacteria were Escherichia coli and Enterococcus faecalis. CONCLUSIONS: The use of solidago, orthosiphon, birch and cranberry extracts resulted in a significant reduction of microbial colonization in patients with indwelling urinary catheters. Larger clinical trials are needed to demonstrate that the effects here reported are sufficient to reduce symptomatic catheter-associated urinary tract infections.

Sterility and microbiological assessment of reused single-use cardiac electrophysiology catheters.

OBJECTIVE: To assess the performance and limitations of a reprocessing protocol for nonlumen electrophysiology catheters by testing the sterility of reprocessed devices and defining the maximum number of reprocessing cycles sustainable by the device in hygienically safe conditions. DESIGN: Simulated use, reprocessing, and testing of the catheters. SETTING: Microbiology and virology department of a public health diagnostic laboratory. INTERVENTIONS: Seventy-three catheters were collected after clinical use on patients. The first group of devices was tested for sterility after 1 cycle of reprocessing. By the repetition of simulated use (blood inoculated with bacteria) and reprocessing (decontamination, cleaning, and hydrogen peroxide gas plasma sterilization), we obtained 39 sample devices reprocessed 2 times, 26 reprocessed 3 times, 28 reprocessed 4 times, 36 reprocessed 5 times, and 22 reprocessed 6 times. Devices were cultured for 28 days in trypticase soy broth. RESULTS: We tested 208 catheters with 6 cycles of reprocessing and 4 inoculated bacteria species. No devices tested positive for the inoculated strains until the fourth cycle of reprocessing. One of 35 catheters showed the growth of the inoculated strain Bacillus subtilis after 5 cycles of reprocessing, and 1 of 22 catheters showed growth of this organism 6 cycles. After the second reprocessing, 7 of 36 devices showed growth of gram-negative bacteria other than the strain inoculated. CONCLUSIONS: Reprocessing according to the reprocessing protocol was insufficient to guarantee device sterility after 5 reuses. Cleaning with enzymatic solution revealed good cleaning properties with efficient bioburden reduction. Storage intervals of longer than 24 hours during reprocessing should be avoided to limit contamination or bacterial overgrowth. Technical considerations suggest the introduction of reprocessing procedures only in hospitals with considerable workloads.