|Year : 2018 | Volume
| Issue : 1 | Page : 17-21
Role of neomycin polymyxin sulfate solution bladder wash for prevention of catheter associated urinary tract infection in traumatic brain injury patient admitted to Intensive Care Unit: A prospective randomized study
Neeraj Kumar1, Yashpal Singh1, Ghanshyam Yadav1, SK Mathur1, Umesh Kumar Bhadani2
1 Department of Anaesthesiology and Critical Care, Trauma Center Intensive Care Unit, BHU, Varanasi, Uttar Pradesh, India
2 Department of Anaesthesiology, All Institute of Medical Sciences, Patna, Bihar, India
|Date of Web Publication||9-Mar-2018|
Dr. Neeraj Kumar
Department of Anaesthesiology and Critical Care, Trauma Center Intensive Care Unit, BHU, Varanasi - 221 005, Uttar Pradesh
Source of Support: None, Conflict of Interest: None
| Abstract|| |
Background: Catheter - associated urinary tract infection (CAUTI) remains a critical threat for patients in intensive care unit especially in traumatic brain injury patients with low Glasgow coma score (GCS). Almost all patients in ICU receive antibiotic either prophylactic or therapeutic based on local antibiogram of particular ICU or hospital. For prophylaxis, systemic antibiotics are used. It will be helpful to avoid systemic side effects by introducing antibiotics locally through bladder irrigation. The indwelling urinary catheter is an essential part of modern medical care.
Aims and Objectives: The primary objective was to study the effect of Neomycin and Polymyxin sulphate solution for bladder wash on CAUTI in traumatic brain injury patients. The secondary objectives was to study the various organisms causing CAUTI and their antibiotic sensitivity and resistance pattern.
Materials and Methods: This was a prospective randomized controlled study performed on 100 patients who met the inclusion criteria at the trauma intensive care unit of Banaras Hindu University between September and February 2016. The patients were randomized into two groups – one was the study group which received Neomycin and Polymyxin Sulphate solution bladder wash, while the other was the control group that received Normal saline bladder wash. Urine samples were collected at certain days and sent for culture and sensitivity.
Results: There was significant reduction in the incidence of CAUTI in neomycin/polymyxin test group in comparison to normal saline irrigated control group.Out of 50 patients in test group 8 patients and in control group 26 patients was identified as CAUTI positive and they were statistically significant. In our study pseudomonas aeruginosa (51%) was the commonest isolated pathogen.
Conclusions: Neomycin and Polymyxin Sulphate bladder wash was effective in preventing CAUTI. It can thus decrease the antibiotic usage thereby preventing the emergence of antibiotic resistance.
Keywords: Catheter-associated urinary tract infection, neomycin and polymyxin sulfate bladder irrigation, traumatic brain injury
|How to cite this article:|
Kumar N, Singh Y, Yadav G, Mathur S K, Bhadani UK. Role of neomycin polymyxin sulfate solution bladder wash for prevention of catheter associated urinary tract infection in traumatic brain injury patient admitted to Intensive Care Unit: A prospective randomized study. Int J Crit Illn Inj Sci 2018;8:17-21
|How to cite this URL:|
Kumar N, Singh Y, Yadav G, Mathur S K, Bhadani UK. Role of neomycin polymyxin sulfate solution bladder wash for prevention of catheter associated urinary tract infection in traumatic brain injury patient admitted to Intensive Care Unit: A prospective randomized study. Int J Crit Illn Inj Sci [serial online] 2018 [cited 2022 Dec 7];8:17-21. Available from: https://www.ijciis.org/text.asp?2018/8/1/17/227052
| Introduction|| |
Catheter associated urinary tract infection (CAUTI) remains a critical threat for patients in Intensive Care Unit (ICU), especially in traumatic brain injury patients with low Glasgow coma score (GCS). Almost all patients in ICU receive antibiotic either prophylactic or therapeutic based on local antibiogram of particular ICU or hospital. However, prophylaxis of urinary tract infection (UTI) with systemic antibiotics or sporadic antibiotic treatment of asymptomatic bacteriuria should be avoided because these interventions have little effect on prevention of symptomatic UTI and may increases colonization with antimicrobial-resistant bacteria.,,,,, Nosocomial infections such as CAUTI and ventilator associated pneumonia (VAP) are the most common. CAUTI comprising more than 40% of all institutionally acquired infections.,,,, The systemic antibiotic used for prophylaxis of CAUTI have side effects which are further deleterious on various organ system in critically ill compromised patients.
It will be helpful to avoid systemic side effects of antibiotics using it locally through bladder irrigation. The indwelling urinary catheter is a routine part of ICU care, especially in patient of low GCS for urine output monitoring. Neomycin-polymyxin combination is bactericidal and active in vitro against Enterobacteriaceae, Pseudomonas aeruginosa, and Staphylococcus aureus, but it is not active against Serratia marcescens, streptococci, and enterococci. Neomycin-Polymyxin when irrigated to the bladder are poorly absorbed systemically and less likely to produce toxic side effects and resistant bacteria. We performed an extensive review of literature which did not reveal any study done on the effectiveness of Neomycin-Polymyxin combination bladder wash in traumatic brain injury patients admitted to ICU. We hypothesized that neomycin-polymyxin bladder wash reduces the incidence of CAUTI and resistant bacteria.
The primary objective was to study the effect of Neomycin and Polymyxin sulphate solution for bladder wash on CAUTI in traumatic brain injury patients. The secondary objectives was to study the various organisms causing CAUTI and their antibiotic sensitivity and resistance pattern.
| Material and Methods|| |
After institutional ethical approval and written informed consent, 100 patient of traumatic brain injury, aged 20–65 years, admitted to trauma intensive care were included in this prospective randomized study between September 2015 and February 2016. All patient that catheterized within 24 hours were included in our study and on meeting the inclusion criteria they were randomly divided into two groups of 50 each: Group I: Received bladder washes with normal saline and Group II: To receive bladder washes with neomycin and polymyxin sulfate solution. Patient with history of pregnancy, immunocompromized patients (AIDS, chemotherapy), diabetes, recurrent UTI, renal insufficiency, use of antibiotics within the previous 7 days and catheter removed before the 3rd day were excluded from the study.
Urine samples was collected after 24 h of admission and transported immediately for culture in microbiology laboratory according to hospital protocol. Urine culture sensitivity was performed on days 3, 7, and then weekly until the removal of catheter or discharge. We made our diagnosis of CAUTI based on findings of bacteriuria, along with an elevated white blood cell count on a urinalysis examination, but in our study, the diagnosis of CAUTI was only made when the urine culture shows 105 colony-forming units/mL of urine from a catheterized patient. Urine samples were taken from the distal end of the catheter after disinfection with 70% ethyl alcohol.
Under strict aseptic and antiseptic precaution the irrigation procedure involved disconnecting the catheter tubing, attaching a syringe containing 30 mL of irrigant, and pushing the plunger of the syringe to instil the solution into the bladder through the foleys catheter where it remained for 20 min. The syringe was disconnected, and the catheter was reconnected to the tubing of the bag. Both test and control group, patients were subjected to bladder wash twice daily. Both groups received standard catheter care including perineal care; the only difference was the bladder wash.
A prospective sample size calculation indicated that 45 patients were required in each group to have a 80% power to detect a 25% difference at an type I (α) error of 0.05 for finding CAUTI in patient undergoing with or without bladder wash and assuming a drop out of 5%, fifty patients was included in each study group. Statistical analysis was performed using Microsoft ® Excel ® 2016 (Redmond, WA, U.S.A) and SPSS version 10.0 (SPSS Inc., Chicago, Illinois, USA). Range and median was used for all continuous variables having nonnormal distribution (age and duration of catheterization) and the two groups was compared using Mann–Whitney U-test. For continuous variables having normal distribution, data was summarized using mean ± standard deviation, and the groups was compared using independent t-test. Frequency and percentage was used for all categorical variables and the groups were compared using Pearson's Chi-square test with Yates correction and Fisher's exact test. A probability of <0.05 was considered as statistically significant.
| Results|| |
The incidence of CAUTI in our ICU is ranging from 20% to 60%. All head injury patient admitted to trauma ICU were catheterized according to protocol. All patients admitted during the study period were screened for eligibility with a target of 100 patients. In our study the demographic variables was comparable in both control and test group in respect to age, Sex and duration of catheterisation and was statistically insignificant.(p>0.05) [Table 1].
There was a significant reduction in the incidence of CAUTI in neomycin/polymyxin test group in comparison to normal saline irrigated control group. In our study on comparing several risks factors like Motor score of GCS, Foley's Catheter size (Fr), Use of systemic antibiotics and types of Head injury in both UTI positive (Test and Control) groups and UTI negative (Test and Control) groups we observed no statistical significant difference.(p> 0.05) ([Table 2]). On comparing among total of fifty patients in test group (UTI positive and UTI negative) only 8 and in control group(UTI positive and UTI Negative) only 26 patients was CAUTI positive and statistically significant difference exists between two group [Table 2].
|Table 2: Risk factors for catheter-associated urinary tract infection (n=100)|
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P. aeruginosa was the most common organism responsible for 51% of CAUTI followed by Escherichia More Details coli and Klebsiella [Figure 1]. Isolated organisms were universally sensitive to polymyxin. Other antibiotics sensitivity was piperacillin-tazobactam, amikacin, and cefeperazone-salbactum All organisms including multidrug resistant was sensitive to polymyxin. Few isolated organism was sensitive to polymyxin only.
| Discussion|| |
As far as our literature search is concern this is the first study which compared the effect of neomycin-polymyxin sulfate solution for bladder wash, especially in patient of traumatic brain injury admitted to ICU. An efficiency of bladder irrigation using various different solutions have been studied in the past in an attempt to reduce the incidence of CAUTI, majority of the investigators found it to be a time-consuming and costly procedure that did not have an impact on CAUTI.,,,, In contrast, this study revealed that neomycin-polymyxin sulfate solution bladder wash is effective in preventing CAUTI. In previous studies, the incidence of CAUTI ranged from 11.0% to 73.3%., Neomycin and polymyxin are the only antimicrobial agents sold commercially in the United States as a urinary bladder irrigant. This combination is bactericidal and active in vitro against several members of the Enterobacteriaceae, P. aeruginosa, and S. aureus, but it is not active against S. marcescens, streptococci, and enterococci. The fact that these antibiotics are poorly absorbed systemically in the absence of compromised renal function makes this solution potentially less likely to generate resistant bacteria or induce toxic side effects than other agents. However, both of these agents are known to produce toxic effects when administered systemically, especially ototoxicity and nephrotoxicity. However, study by Puri et al. concluded that the risk was significantly higher for females, elderly patients, critically ill patients, and those on prolonged catheterization. This study showed only severity of the disease (low motor score of GCS) as a statistically significant risk factor. This might be since a lower GCS corresponds to the severity of tissue injury, where there is hyper metabolism and increased protein catabolism, which eventually leads to decreased immunity that makes the person more susceptible to infections. However, the present study did not show any influence of sex, age, catheter size, duration of catheterization, and systemic use of antibiotics. This might be due to the small sample size and inclusion of long-term catheterized patient's only pathogenic organisms responsible for CAUTI and their antibiotic sensitivity pattern vary with time. In a study, Jha et al. found that most common organisms responsible for CAUTI were E. coli (49%), S. aureus (23%), Proteus spp.(3.6%), Klebsiella (9.71%), Pseudomonas (0.8%), and Citrobacter (2.8%). Where as in the present study, Pseudomonas (51%), E. coli (17%), Proteus spp., Citrobacter, Klebsiella, and Acinetobacter (8% each) were the most common. Similarly, antibiotic resistance pattern also varied. In their study, Taneja et al. found the highest frequency of antibiotic resistance was for ciprofloxacin (68.6%) followed by netilmicin (60.7%), ceftazidime (58.8%), imipenem (43.7%), amikacin (43.1%), and piperacillin (39.2%). In the present study, the pattern of antibiotic resistance was ceftazidime, imipenem, ciprofloxacin, and meropenem but universally sensitive to polymyxin. In this study, we have shown that neomycin-polymyxin sulfate solution bladder wash is very effective in preventing CAUTI. Thus it can be included in the routine catheter care, especially if catheterization is needed for more than 5 days. It is easy to implement and cost effective.
Our studies have three main limitations. First, we did not study the effect on mortality, ICU stay and ventilatory days. Second, we did not send the culture before catheterization. Third due to small sample size and single center study our result may vary from other studies.
| Conclusion|| |
This study showed that twice daily bladder wash with the neomycin-polymyxin solution is effective in the prevention of CAUTI. It can be incorporated as a routine practice in long-term catheterized traumatic brain injury patients admitted to ICU.
Written informed consent for publication obtained from each patients relatives enrolled in this study. Presented at 23rd Annual Conference of Indian Society of Critical Care Medicine (CRITICARE 2017) held at Kochi, Kerala, India.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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[Table 1], [Table 2]
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