Detailed standardized protocol to prevent cerebrospinal fluid shunt infection

2020 ◽  
Vol 132 (3) ◽  
pp. 755-759
Author(s):  
Yuma Okamura ◽  
Keisuke Maruyama ◽  
Shin Fukuda ◽  
Hiroshi Horikawa ◽  
Nobuyoshi Sasaki ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Postoperative Infection ◽  
Shunt Infection ◽  
Csf Shunt ◽  
Patient Age ◽  
Protocol Implementation ◽  
Patient Âgé ◽  
Significant Difference ◽  
Before And After ◽  
Shunt Infections

OBJECTIVEWhile cerebrospinal fluid (CSF) shunt surgery plays an essential role in the treatment of hydrocephalus, postoperative infection due to the implantation of foreign materials is still one of the most common and potentially serious complications of this procedure. Because no previously reported protocol has been proven to prevent postoperative infection after CSF shunt surgeries in adults, the authors investigated the effectiveness of a protocol introduced in their institution.METHODSA detailed standardized surgical protocol to prevent infection in patients undergoing CSF shunt surgeries was introduced in the authors’ institution in December 2011. The protocol included a series of detailed rules regarding the surgical procedure, the surgical environment to minimize contamination from air, double gloving, local injection of antibiotics, and postoperative management. The rate of CSF shunt infection during the 3 years after surgery before and after implementation of the protocol was compared in patients undergoing their first CSF shunt surgeries. The inclusion periods were from January 2006 to November 2011 for the preprotocol group and from December 2011 to December 2014 for the postprotocol group.RESULTSThe study included 124 preprotocol patients and 52 postprotocol patients. The mean patient age was 59 years in both groups, ranging from 40 days to 88 years. Comparison of patient background factors, including known risk factors for surgical site infections, showed no significant difference between the patient groups before and after implementation of the protocol. While 9 patients (7.3%) developed shunt infections before protocol implementation, no shunt infections (0%) were observed in patients who underwent surgery after protocol implementation. The difference was statistically significant (p = 0.047).CONCLUSIONSThe authors’ detailed protocol for CSF shunt surgeries was effective in preventing postoperative infection regardless of patient age.

Postoperative cerebrospinal fluid wound leakage as a predictor of shunt infection: a prospective analysis of 205 cases

2009 ◽  
Vol 4 (2) ◽  
pp. 166-169 ◽  
Author(s):  
N. u. Owase Jeelani ◽  
Abhaya V. Kulkarni ◽  
Pani DeSilva ◽  
Dominic N. P. Thompson ◽  
Richard D. Hayward
Keyword(s):  
Statistical Significance ◽  
Shunt Infection ◽  
Csf Leak ◽  
Csf Shunt ◽  
Patient Age ◽  
Data Set ◽  
Street Hospital ◽  
Patient Âgé ◽  
Surgeon Experience ◽  
Shunt Infections

Object The purpose of this study was to audit some of the risk factors for CSF shunt infections within the authors' practice and analyze the statistical significance of these factors. Methods The authors used their own contemporaneously collected shunt database in this study. All shunt procedures performed over a 2-year period between March 2000 and February 2002 at Great Ormond Street Hospital, London, were analyzed. For the purposes of this study, positive CSF cultures were a prerequisite for a data set to qualify as a shunt infection. The authors studied the effects of patient age, the etiology of hydrocephalus, whether the surgery was primary shunt placement versus a revision, the surgeon's level of experience, whether the surgery was performed on an elective or emergency basis, and the presence or absence of a perioperative CSF leak. Statistical analyses were performed. Results Two hundred and five patients with a mean (± SD) age at surgery of 27.9 ± 43.0 months were included in this study. Shunt infections developed in 17 patients (8.3%) at a median of 42 days postoperatively (range 14–224 days). The presence of a perioperative CSF leak was the only variable that showed a statistically significant association with the occurrence of a shunt infection, with an infection rate of 57.1% compared to 4.7% in cases with no leak (OR 27.0 [95% CI 7.7–94.3]). The cause of hydrocephalus, elective versus emergency surgery, level of surgeon experience, a primary versus a revision procedure, and patient age did not have a bearing on the infection risk. Conclusions The presence of a perioperative CSF leak puts pediatric patients at a very high risk of shunt infection. Aside from prevention, the optimal management of such CSF leaks require further investigation.

Factors contributing to the medical costs of cerebrospinal fluid shunt infection treatment in pediatric patients with standard shunt components compared with those in patients with antibiotic-impregnated components

2007 ◽  
Vol 22 (4) ◽  
pp. 1-4 ◽  
Author(s):  
Daniel M. Sciubba ◽  
Li-Mei Lin ◽  
Graeme F. Woodworth ◽  
Matthew J. McGirt ◽  
Benjamin Carson ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Pediatric Patients ◽  
Pediatric Population ◽  
Medical Costs ◽  
Shunt Infection ◽  
Csf Shunt ◽  
Shunt Insertion ◽  
Average Hospital ◽  
Infection Treatment ◽  
Shunt Infections

Object Antibiotic-impregnated shunt (AIS) systems may decrease the incidence of cerebrospinal fluid (CSF) shunt infections. However, there is a reluctance to use AIS components because of their increased cost. In the present study the authors evaluated factors contributing to the medical costs associated with the treatment of CSF shunt infections in a hydrocephalic pediatric population, those implanted with AIS systems compared with those implanted with standard shunt systems. Methods The authors retrospectively reviewed data obtained in all pediatric patients who had undergone CSF shunt insertion at their institution over a 3-year period. All patients were followed up for 12 months after surgery. The independent association between AIS catheter use and subsequent shunt infection was assessed by performing a multivariate proportional hazards regression analysis. Factors contributing to the medical costs associated with shunt infection were evaluated. Results Two hundred eleven pediatric patients underwent 353 shunting procedures. Two hundred eight shunts (59%) were placed with nonimpregnated catheters and 145 shunts (41%) were placed with AIS catheters. Twenty-five patients (12%) with non-AIS catheters experienced shunt infection, whereas only two patients (1.4%) with AIS catheters had a shunt infection within the 6-month follow-up period (p < 0.01). Among infected patients, infected patients with standard shunt components had a longer average hospital stay, more inpatient complications related to infection treatment, and more multiple organism infections and multiple antibiotic regimens, compared with those with AIS components. Conclusions Although individual AIS components are more expensive than standard ones, factors contributing to medical costs are fewer in pediatric patients with infected shunts when the components are antibiotic-impregnated rather than standard.

How long should cerebrospinal fluid cultures be held to detect shunt infections?

2009 ◽  
Vol 4 (2) ◽  
pp. 184-189 ◽  
Author(s):  
Atman Desai ◽  
Stuart Scott Lollis ◽  
Symeon Missios ◽  
Tarek Radwan ◽  
Deborah E. Zuaro ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Cerebrospinal Fluid ◽  
Antibiotic Treatment ◽  
Shunt Infection ◽  
Significant Difference ◽  
Few Data ◽  
Prior Antibiotic Treatment ◽  
Shunt Infections ◽  
Observation Period

Object Infections of CSF hardware may be indolent, and some patients have received antibiotic treatment for various reasons before CSF is obtained to check for a shunt infection. At present, there are few data in the literature to guide the decision as to how long to hold CSF specimens when attempting to diagnose hardware infections, and institutions vary in the duration at which cultures are considered “final.” Methods The authors reviewed the microbiology data from CSF specimens obtained from shunts, ventriculostomies, reservoirs, and lumbar drains at their institution over a 36-month period to discover how long after collection cultures became positive. The authors also sought to discover whether this time was affected by prior treatment with antibiotics. Results Of 158 positive CSF specimens obtained from hardware, the time to recovery ranged between 1–10 days, with a mean of 3.02 days (SD 2.37 days, 95% CI 2.66–3.38 days). One hundred and twenty-seven positive specimens were associated with clinical infections, and ~ 25% of these grew organisms after > 3 days, with some as long as 10 days after specimens were obtained. The most common organisms grown from individual patients were coagulase-negative Staphylococcus spp (34 cultures), Propionibacterium spp (21), Bacillus spp (6), Pseudomonas aeruginosa (4), and Staphylococcus aureus (4 cultures). Mean and maximum days to recovery were different across species, with S. aureus showing the shortest and Propionibacterium spp showing the longest incubation times. There appeared to be no significant difference in the time to recovery between specimens obtained in patients who had received prior antibiotic treatment versus those who had not. Conclusions A substantial number of positive CSF specimens obtained in patients with clinical infections grew bacteria after > 3 days, with some requiring as long as 10 days. Thus, a routine 10-day observation period for CSF specimens can be justified.

Experience With Ventriculoperitoneal and Lumboperitoneal Shunting for the Treatment of Idiopathic Intracranial Hypertension: A Single Institution Series

2021 ◽  
Author(s):  
Ahmad Sweid ◽  
Badih J Daou ◽  
Joshua H Weinberg ◽  
Robert M Starke ◽  
Robert C Sergott ◽  
...  
Keyword(s):  
Intracranial Hypertension ◽  
Idiopathic Intracranial Hypertension ◽  
Shunt Infection ◽  
Shunt Malfunction ◽  
Treatment Modalities ◽  
Shunt Revision ◽  
Patient Age ◽  
Ventriculoperitoneal Shunting ◽  
Patient Âgé ◽  
Significant Difference

Abstract BACKGROUND CSF shunting is among the most widely utilized interventions in patients with idiopathic intracranial hypertension (IIH). Ventriculoperitoneal shunting (VPS) and lumboperitoneal shunting (LPS) are 2 possible treatment modalities. OBJECTIVE To evaluate and compare complications, malfunction, infection, and revision rates associated with VPS compared to LPS. METHODS Electronic medical records were reviewed to identify baseline and treatment characteristics for patients diagnosed with IIH treated with VPS or LPS. RESULTS A total of 163 patients treated with either VPS (74.2%) or LPS (25.8%) were identified. The mean follow-up was 35 mo. Shunt revision was required in 40.9% of patients. There was a nonsignificant higher rate of revision with LPS (52.4%) than VPS (36.4%, P = .07). In multivariate analysis, increasing patient age was associated with higher odds of shunt revision (P = .04). LPS had higher odds of shunt revision, yet this association was not significant (P = .06). Shunt malfunction was the main indication for revision occurring in 32.7%, with a significantly higher rate with LPS than VPS (P = .03). In total, 15 patients had shunt infection (9.4% VPS vs 12.2% LPS P = .50). The only significant predictor of procedural infection was the increasing number of revisions (P = .02). CONCLUSION The incidence of shunt revision was 40.9%, with increasing patient age as the sole predictor of shunt revision. The incidence of shunt malfunction was significantly higher in patients undergoing LPS, while there was no significant difference in the incidence of shunt infection between the 2 modalities.

Conservative Management of Patients with Cerebrospinal Fluid Shunt Infections

Neurosurgery ◽  
2006 ◽  
Vol 58 (4) ◽  
pp. 657-665 ◽  
Author(s):  
Erwin M. Brown ◽  
Richard J. Edwards ◽  
Ian K. Pople
Keyword(s):  
Staphylococcus Aureus ◽  
Cerebrospinal Fluid ◽  
Success Rate ◽  
Conservative Management ◽  
Shunt Infection ◽  
Csf Shunt ◽  
Antibiotic Administration ◽  
Csf Shunt Infection ◽  
Shunt Infections

Abstract OBJECTIVE: In patients with cerebrospinal fluid (CSF) shunt infection, removal of the shunt and antibiotic administration is the current standard of care. In 1986, we developed a protocol for the conservative management of patients with infected but functioning shunts. Treatment was based on the administration of a combination of intraventricular and systemic antibiotics. Intraventricular antibiotics were instilled via a separate access device. The purpose of this report is to describe our experience with this therapeutic intervention. METHODS: An observational study of all patients treated for CSF shunt infection between 1986 and 2003 was undertaken. Cure was defined by sterile CSF after completion of therapy and sterile shunt components at next revision or long-term freedom from recurrent infection (follow-up period, 6–88 mo). RESULTS: In total, 43 of 122 patients with CSF shunt infections were treated conservatively according to our protocol. Overall, 84% of these patients were cured, with a 92% success rate for patients with infections caused by bacteria other than Staphylococcus aureus. This included 30 coagulase-negative staphylococcal infections, of which two were treatment failures. We abandoned conservative treatment of patients with Staphylococcus aureus infections after early experience demonstrated that the success rate (four treatment failures in seven patients) was markedly lower than that for other pathogens. During the treatment and follow-up periods, there were three deaths, two of which were unrelated to shunt infection; treatment failure could not be completely excluded in the remaining patient. There was no toxicity related to intraventricular antibiotic administration. The incidence of shunt blockage among patients who were treated conservatively was not significantly different from that among a large cohort of patients with uninfected shunts. Ten patients received part of their courses of treatment as outpatients. CONCLUSION: The success rate of conservative management of patients with CSF shunt infections caused by coagulase-negative staphylococci is comparable with those in the published literature for patients treated conventionally. This form of management avoids surgical intervention, with its attendant risks, and is safe.

scholarly journals Intraventricular Vancomycin In Pediatric Patients With Cerebrospinal Fluid Shunt Infections

2004 ◽  
Vol 9 (1) ◽  
pp. 36-42 ◽  
Author(s):  
Majed Al-Jeraisy ◽  
Stephanie J. Phelps ◽  
Michael L. Christensen ◽  
Stephanie Einhaus
Keyword(s):  
Cerebrospinal Fluid ◽  
Pediatric Patients ◽  
Shunt Infection ◽  
Csf Shunt ◽  
Older Children ◽  
Vancomycin Concentration ◽  
Patients Âgés ◽  
Vancomycin Trough ◽  
Serum Vancomycin ◽  
Shunt Infections

OBJECTIVES To determine: 1) the range and magnitude of vancomycin trough cerebrospinal fluid (CSF) concentrations following intraventricular (IVT) vancomycin; 2) any correlation between patient demographic and CSF vancomycin concentrations; and 3) eradication and complications rates following IVT vancomycin. METHODS Medical records of pediatric patients with shunt infection who received IVT vancomycin during a 12 month period were reviewed. Demographic, microbiological data, IVT/intravenous (IV) vancomycin dosing, concomitant antibiotics, CSF and serum vancomycin concentrations, and CSF drainage output were recorded. RESULTS Seventeen patients ages 4 months to 17 years were hospitalized for shunt infection. Staphylococcus epidermidis (n=12) was the predominant organism. Sixteen patients received 10 mg, and one patient received 5 mg of IVT vancomycin for 3–23 days. All but one received concurrent IV vancomycin. The mean maximum trough CSF vancomycin concentration noted for 16 patients who recieved 10 mg of IVT vancomycin was 18.4±21.8 μg/mL (range: between 0.4 to 187.3 μg/mL). All four adolescents ≥25 kg had CSF vancomycin concentrations ≤5 μg/mL, three of four infants/children between 10.1 and 24.9 kg had trough CSF vancomycin concentrations between 10–20 μg/mL, and five of nine infants &lt;10 kg had CSF concentrations &gt;20 μg/mL. All organisms were successfully eradicated. One patient developed chronic eosinophilia presumed related to elevated CSF vancomycin concentrations (187 μg/mL). CONCLUSIONS –The combination of IVT and IV vancomycin effectively eradicated CSF shunt infections. CSF vancomycin concentrations are highly variable and poorly correlated with age and CSF output. Following a 10 mg IVT vancomycin dose, CSF concentrations appear to be lower in older children and elevated in infants/young children. One infant experienced a complication related to an elevated CSF vancomycin concentration; hence, therapy must be individualized, using CSF trough vancomycin concentrations.

Age dependency of resistance to cerebrospinal fluid outflow

1998 ◽  
Vol 89 (2) ◽  
pp. 275-278 ◽  
Author(s):  
Michael J. Albeck ◽  
Claus Skak ◽  
Per R. Nielsen ◽  
Karsten S. Olsen ◽  
Svend E. Børgesen ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Clinical Effect ◽  
Csf Shunt ◽  
Elderly Persons ◽  
Patient Age ◽  
Content Type ◽  
Shunt Placement ◽  
Residual Variation ◽  
Patient Âgé ◽  
Fine Print

Object. Resistance to cerebrospinal fluid (CSF) outflow (Rout) is an important parameter in assessing the need for CSF shunt placement in patients with hydrocephalus. The normal lower limit of Rout has been estimated on the basis of the clinical effect of shunt placement in patients with varying values of Rout and in young healthy volunteers. The lack of clinical effect from CSF shunts in some elderly patients, despite elevated Rout, suggests that the normal value of Rout increases with age and may be higher in elderly persons. The aim of the present study was to examine the relationship between Rout and age in patients without known CSF dynamic disturbances. Methods. Fifty-two patients ranging from 20 to 88 years of age and with no known CSF dynamic disorders were examined. The Rout was measured using a lumbar computerized infusion test. The correlation between Rout and age was analyzed by performing linear regression. The Rout increased significantly with patient age. The Rout in a patient in the eighth decade will be approximately 5 mm Hg/ml/minute higher than in a young patient. Conclusions. The present study shows a small but critical increase in Rout with increased patient age. A notable residual variation was present and borderline values of Rout should be regarded and used with caution.

scholarly journals Relationship of causative organism and time to infection among children with cerebrospinal fluid shunt infection

2019 ◽  
Vol 24 (1) ◽  
pp. 22-28
Author(s):  
Matthew R. Test ◽  
Kathryn B. Whitlock ◽  
Marcie Langley ◽  
Jay Riva-Cambrin ◽  
John R. W. Kestle ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Tertiary Care ◽  
Predictor Variable ◽  
Shunt Infection ◽  
Csf Shunt ◽  
Causative Organism ◽  
Gram Negative ◽  
Significant Difference ◽  
Csf Shunt Infection ◽  
Gram Negative Organisms

OBJECTIVEInfection is a common complication of cerebrospinal fluid (CSF) shunts, occurring in 6%–20% of children. Although studies are limited, Staphylococcus aureus is thought to cause more rapid and aggressive infection than coagulase-negative Staphylococcus (CONS) or gram-negative organisms. The authors’ objective was to evaluate the relationship between the causative organisms of CSF shunt infection and the timing of infection.METHODSThe authors performed a retrospective cohort study of children who underwent CSF shunt placement at a tertiary care children’s hospital over a 9-year period and subsequently developed a CSF shunt infection. The primary predictor variable was the causative organism recovered from CSF culture, characterized as S. aureus, CONS, or gram-negative organisms. The primary outcome was time to infection, defined as the number of days from most recent shunt intervention to the diagnosis of the infection. The association between causative organism and time to infection was visualized using Kaplan-Meier curves, and statistical comparisons were made using nonparametric Kruskal-Wallis tests.RESULTSAmong 103 children in whom a CSF shunt infection developed, the causative organism was CONS in 57 (55%), S. aureus in 19 (18%), and gram-negative organisms in 9 (9%). The median time to infection did not differ (p = 0.81) for infections caused by CONS (20 days, IQR 11–40), S. aureus (26 days, IQR 12–95), and gram-negative organisms (23 days, IQR 17–34).CONCLUSIONSNo significant difference in time to infection based on the causative organism was observed among children with a CSF shunt infection.

Evaluation of endorphin content in the CSF of patients with trigeminal neuralgia before and after Gasserian ganglion thermocoagulation

1981 ◽  
Vol 55 (6) ◽  
pp. 935-937 ◽  
Author(s):  
Giuseppe Salar ◽  
Salvatore Mingrino ◽  
Marco Trabucchi ◽  
Angelo Bosio ◽  
Carlo Semenza
Keyword(s):  
Cerebrospinal Fluid ◽  
Trigeminal Neuralgia ◽  
Control Group ◽  
Gasserian Ganglion ◽  
Content Type ◽  
Group Of Seven ◽  
Idiopathic Trigeminal Neuralgia ◽  
Significant Difference ◽  
Before And After ◽  
Fine Print

✓ The β-endorphin content in cerebrospinal fluid (CSF) was evaluated in 10 patients with idiopathic trigeminal neuralgia during medical treatment (with or without carbamazepine) and after selective thermocoagulation of the Gasserian ganglion. These values were compared with those obtained in a control group of seven patients without pain problems. No statistically significant difference was found between patients suffering from trigeminal neuralgia and those without pain. Furthermore, neither pharmacological treatment nor surgery changed CSF endorphin values. It is concluded that there is no pathogenetic relationship between trigeminal neuralgia and endorphins.

scholarly journals Use of F-18 FDG PET/CT Through Delayed Diuretic Imaging for Preoperative Evaluation of Upper Urinary Tract-Occupying Lesions

2021 ◽  
Vol 11 ◽  
Author(s):  
Jun Wang ◽  
Liang Zhang ◽  
Jian Guo Wu ◽  
Ruohua Chen ◽  
Jia lin Shen
Keyword(s):  
Urinary Tract ◽  
Fdg Pet ◽  
Malignant Tumors ◽  
Upper Urinary Tract ◽  
Characteristic Analysis ◽  
Patient Age ◽  
Patient Âgé ◽  
Pet Ct ◽  
Significant Difference ◽  
Fdg Pet Ct

PurposeTo evaluate the value of F-18 FDG PET/CT in the differentiation of malignant and benign upper urinary tract-occupying lesions.Patients and Methods64 patients with upper urinary tract-occupying lesions underwent F-18 FDG PET/CT at RenJi Hospital from January 2015 to February 2019 in this retrospective study. Of the 64 patients, 50 patients received nephroureterectomy or partial ureterectomy; 14 patients received ureteroscopy and biopsy. The comparisons of PET/CT parameters and clinical characteristics between malignant and benign upper urinary tract-occupying lesions were investigated.ResultsOf the 64 patients, 49 were found to have malignant tumors. Receiver operating characteristic analysis determined the lesion SUVmax value of 6.75 as the threshold for predicting malignant tumors. There were significant associations between malignant and benign upper urinary tract-occupying lesions and SUVmax of lesion (P&lt;0.001), lesion size (P&lt;0.001), and patient age (P=0.011). Multivariate analysis showed that SUVmax of lesion (P=0.042) and patient age (P=0.009) as independent predictors for differentiation of malignant from benign upper urinary tract-occupying lesions. There was a significant difference in tumor size between the positive (SUVmax &gt;6.75) and negative (SUVmax ≤6.75) PET groups in 38 of the 49 patients with malignant tumors.ConclusionThe SUVmax of lesion and patient age is associated with the nature of upper urinary tract-occupying lesions. F-18 FDG PET/CT may be useful to distinguish between malignant and benign upper urinary tract-occupying lesions and determine a suitable therapeutic strategy.

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