An investigation of the effectiveness against bacteriuria of silver-coated catheters in short-term urinary catheter applications: A randomized controlled study

Role of noble metal-coated catheters for short-term urinary catheterization of adults: a meta-analysis

“…Data of bacteriuria (till the last follow-up) was pooled for a meta-analysis based on the type of noble metal coating (Fig 2). Seven studies [11,12,27,28,30,31,34] with eight reports were pooled for silver alloy catheter vs standard catheter. Results indicated a significant decrease in the risk of bacteriuria with silver alloy-coated catheters (RR 0.63, 95%CI 0.44-0.90, P = 0.01; I 2 = 72%).…”

“…The results were still significant for silver-alloy catheters (RR 0.46, 95%CI 0.26-0.81, P = 0.007; I 2 = 63%) when used for a catheterization period of <1week (Fig 4). A total of three trials [11,12,30,31] with four reports were pooled for the incidence of bacteriuria after >1week of indwelling silver alloy catheter vs standard catheter. Our results indicated significant difference between the two groups (RR 0.71, 95%CI 0.55-0.92, P = 0.01; I 2 = 0%) (Fig 4).…”

“…Three employed silver-oxide catheters [19,21,22], two studies were only in abstract form [20,23], two studied the effects of long-term catheterization [25,26] while one study compared two different types of silver-coated catheters [24]. A total of 13 studies were included in the review [10][11][12][13][14][15][27][28][29][30][31][32][33]. Details of the included studies are presented in Table 1.…”

“…For the comparative arm, studies described the catheters as standard/regular catheter, standard silicone catheter, standard latex catheter, standard silicone latex catheter, polytetrafluoroethylene (PTFE) coated latex catheter, teflonised latex catheter, standard hydrogel coated catheter and standard hydrogel-coated latex catheter. The mean, median or total duration of catheterization was �14 days for all studies except one study where catheterization was done up to 22 days [12]. However, the authors reported outcomes of bacteriuria at frequent intervals from 2-22 days.…”

“…In a Cochrane review by Lam et al, the authors had evaluated evidence on the efficacy of such noble-metal coated catheters in 2014 [8]. Since then many new trials have been published and there is a need for updated evidence on this subject, to provide guidelines to health-care providers [12][13][14][15]. Hence, the primary objective of this review was to perform a systematic literature search and conduct a meta-analysis to answer the clinical question: Does the use of noble-metal coated urinary catheters for short-term catheterization of adults reduce the incidence of CAUTI?…”