Hongsheng Liang1, Liyang Zhang1, Aili Gao2, Yonghua Li1, Zhenfeng Jiang1, Fulan Hu3, Bin Shao1, Yan Liu4, Xiangtong Zhang5. 1. Key Laboratory of Neurosurgery, College of Heilongjiang Province, First Affiliated Hospital of Harbin Medical University, Harbin, P.R. China. 2. School of Life Science, Northeast Agricultural University, Harbin, P.R. China. 3. Department of Epidemiology, School of Public Health, Harbin Medical University, Harbin, P.R. China. 4. Department of Biostatistics, School of Public Health, Harbin Medical University, Harbin, P.R. China. liuyan@ems.hrbmu.edu.cn. 5. Key Laboratory of Neurosurgery, College of Heilongjiang Province, First Affiliated Hospital of Harbin Medical University, Harbin, P.R. China. zgxgtg@sina.com.
Abstract
BACKGROUND: A solid knowledge associated with lumbar drainage (LD)-related infections in spontaneous subarachnoid hemorrhage (SAH) patients is necessary and that would be useful in taking effective measures to cope with this complication. We aimed to describe incidence rates and risk factors associated with LD-related infections in SAH patients. METHODS: A retrospective review was performed on SAH patients who underwent LD between July 2010 and August 2015. Patient charts were reviewed to retrieve demographic, clinical, and laboratory data. LD-related infections were defined based on culture results of cerebrospinal fluid in combination with clinical symptoms. Infection rates were calculated, and a logistic regression model was developed to identify risk factors. RESULTS: A total of 629 SAH patients (25-82 years age range, 42.8 % male) were treated with LD in the period. LD-related infections were identified in 36 patients (5.7 %). Longer duration of LD (≥4 days: p = 0.0037) and puncture site leakage (p < 0.0001) appeared to be risk factors for infection. The infection rate increased with length of the hospital stay (16-20 days: p = 0.0032; ≥21 days: p = 0.0007). 84.6 % of the isolated bacteria were Gram-positive, and the most commonly associated pathogens were Methicillin-resistant coagulase-negative Staphylococcus (MRCNS, 61.5 %). CONCLUSIONS: The patients with LD for more than 4 days or with puncture site leakage had more risk of infection. Infected patients were more likely to stay longer in the hospital. MRCNS were identified as the most frequent causal pathogens. And the use of antibiotics during LD did not appear to reduce the risk of infection.
BACKGROUND: A solid knowledge associated with lumbar drainage (LD)-related infections in spontaneous subarachnoid hemorrhage (SAH) patients is necessary and that would be useful in taking effective measures to cope with this complication. We aimed to describe incidence rates and risk factors associated with LD-related infections in SAHpatients. METHODS: A retrospective review was performed on SAHpatients who underwent LD between July 2010 and August 2015. Patient charts were reviewed to retrieve demographic, clinical, and laboratory data. LD-related infections were defined based on culture results of cerebrospinal fluid in combination with clinical symptoms. Infection rates were calculated, and a logistic regression model was developed to identify risk factors. RESULTS: A total of 629 SAHpatients (25-82 years age range, 42.8 % male) were treated with LD in the period. LD-related infections were identified in 36 patients (5.7 %). Longer duration of LD (≥4 days: p = 0.0037) and puncture site leakage (p < 0.0001) appeared to be risk factors for infection. The infection rate increased with length of the hospital stay (16-20 days: p = 0.0032; ≥21 days: p = 0.0007). 84.6 % of the isolated bacteria were Gram-positive, and the most commonly associated pathogens were Methicillin-resistant coagulase-negative Staphylococcus (MRCNS, 61.5 %). CONCLUSIONS: The patients with LD for more than 4 days or with puncture site leakage had more risk of infection. Infected patients were more likely to stay longer in the hospital. MRCNS were identified as the most frequent causal pathogens. And the use of antibiotics during LD did not appear to reduce the risk of infection.
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