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Assessment of a multiplex RT-PCR for Simultaneous, Rapid Screening of Common Viral Infections of Central Nervous System: A Prospective Study for Enteroviruses and Herpesviruses. POSTEP HIG MED DOSW 2022. [DOI: 10.2478/ahem-2022-0011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Introduction
Acute meningitis is a common neurological disorder that affects both children and adults and has a high mortality rate. This study aimed to create a multiplex reverse transcriptase PCR system for screening clinical samples for the presence of the two viruses currently considered to be the most common causes of acute meningitis in Asia.
Materials and Methods
A single-tube RT multiplex PCR assay was developed and tested for sensitivity and specificity using primers that have been commonly used to screen for herpes simplex viruses 1 and 2 (HSV-1/2) and enterovirus (EV) in clinical samples. The procedure was then used to screen 303 clinical samples for the target viruses, which included 101 feces samples, 101 throat swabs, and 101 cerebrospinal fluid (CSF) samples obtained from 101 hospitalized Iranian children with suspected viral meningitis/meningoencephalitis, and the findings were compared to those of an RT monoplex PCR method.
Results
The RT-PCR approach demonstrated high precision, with no non-target virus amplification. The results of using this assay to screen clinical samples revealed that RT monoplex PCR had the same sensitivity as RT multiplex PCR for the three different types of specimens.
Conclusions
This newly developed multiplex RT-PCR method is a simple, fast diagnostic tool that can be used to screen clinical samples for viruses that cause acute meningitis/meningoencephalitis in children.
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Feng B, Fei X, Sun Y, Zhang X, Shang D, Zhou Y, Sheng M, Xu J, Zhang W, Ren W. Prognostic factors of adult tuberculous meningitis in intensive care unit: a single-center retrospective study in East China. BMC Neurol 2021; 21:308. [PMID: 34376174 PMCID: PMC8353730 DOI: 10.1186/s12883-021-02340-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 07/30/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Tuberculous meningitis (TBM) is the most lethal form of tuberculosis worldwide. Data on critically ill TBM patients in the intensive care unit (ICU) of China are lacking. We tried to identify prognostic factors of adult TBM patients admitted to ICU in China. METHODS We conducted a retrospective study on adult TBM in ICU between January 2008 and April 2018. Factors associated with unfavorable outcomes at 28 days were identified by logistic regression. Factors associated with 1-year mortality were studied by Cox proportional hazards modeling. RESULTS Eighty adult patients diagnosed with TBM (age 38.5 (18-79) years, 45 (56 %) males) were included in the study. An unfavorable outcome was observed in 39 (49 %) patients and were independently associated with Acute Physiology and Chronic Health Evaluation (APACHE) II > 23 (adjusted odds ratio (aOR) 5.57, 95 % confidence interval (CI) 1.55-19.97), Sequential Organ Failure Assessment (SOFA) > 8 (aOR 9.74, 95 % CI 1.46-64.88), and mechanical ventilation (aOR 18.33, 95 % CI 3.15-106.80). Multivariate Cox regression analysis identified two factors associated with 1-year mortality: APACHE II > 23 (adjusted hazard ratio (aHR) 4.83; 95 % CI 2.21-10.55), and mechanical ventilation (aHR 9.71; 95 % CI 2.31-40.87). CONCLUSIONS For the most severe adult TBM patients of Medical Research Council (MRC) stage III, common clinical factors aren't effective enough to predict outcomes. Our study demonstrates that the widely used APACHE II and SOFA scores on admission can be used to predict short-term outcomes, while APACHE II could also be used to predict long-term outcomes of adult patients with TBM in ICU.
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Affiliation(s)
- Baobao Feng
- Department of Emergency, Cheeloo College of Medicine, Shandong Provincial Hospital, Shandong University, 250021, Jinan, Shandong, China.,Department of Emergency, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 250021, Jinan, Shandong, China
| | - Xiao Fei
- Department of Infectious Diseases, Weifang Yidu Central Hospital, 262500, Weifang, Shandong, China
| | - Ying Sun
- Department of Critical Care Medicine, Cheeloo College of Medicine, Shandong Provincial Chest Hospital, Shandong University, 250013, Jinan, Shandong, China
| | - Xingguo Zhang
- Department of Emergency, Cheeloo College of Medicine, Shandong Provincial Hospital, Shandong University, 250021, Jinan, Shandong, China.,Department of Emergency, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 250021, Jinan, Shandong, China
| | - Deya Shang
- Department of Emergency, Cheeloo College of Medicine, Shandong Provincial Hospital, Shandong University, 250021, Jinan, Shandong, China.,Department of Emergency, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 250021, Jinan, Shandong, China
| | - Yi Zhou
- Department of Emergency, Cheeloo College of Medicine, Shandong Provincial Hospital, Shandong University, 250021, Jinan, Shandong, China.,Department of Emergency, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 250021, Jinan, Shandong, China
| | - Meiyan Sheng
- Department of Critical Care Medicine, Cheeloo College of Medicine, Shandong Provincial Chest Hospital, Shandong University, 250013, Jinan, Shandong, China
| | - Jiarui Xu
- Department of Emergency, Cheeloo College of Medicine, Shandong Provincial Hospital, Shandong University, 250021, Jinan, Shandong, China.,Department of Emergency, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 250021, Jinan, Shandong, China
| | - Wei Zhang
- Department of Emergency, Cheeloo College of Medicine, Shandong Provincial Hospital, Shandong University, 250021, Jinan, Shandong, China.,Department of Emergency, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 250021, Jinan, Shandong, China
| | - Wanhua Ren
- Department of Infectious Diseases, Cheeloo College of Medicine, Shandong Provincial Hospital, Shandong University, 324 Jingwu Weiqi Road, 250021, Jinan, Shandong, China. .,Department of Infectious Diseases, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 250021, Jinan, Shandong, China.
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Ghia CJ, Rambhad GS. A systematic literature review on the prevalence and etiology of meningitis among critically ill and hospitalized patients in India. Ther Adv Infect Dis 2021; 8:20499361211046453. [PMID: 34589213 PMCID: PMC8474356 DOI: 10.1177/20499361211046453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 08/27/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND In India, owing to multiple factors, such as insufficient laboratory capacity, poor reporting systems due to limited access to healthcare facilities and limited disease surveillance programmes, the actual disease burden of meningitis is unknown and may be largely under-reported. OBJECTIVE A systematic literature review was performed to describe: (a) the prevalence of meningitis; and (b) its etiological pathogen across different regions, age groups and patients with comorbidities. METHOD A systematic literature search was conducted between 1990 and 2020 using PubMed and Google Scholar databases to identify Indian studies reporting the prevalence rates and etiology of meningitis. A total of 51 studies were included in the final analysis. RESULTS A total of 38 studies reported prevalence of meningitis and 21 studies reported data on the etiology of meningitis in India. These studies included mixed patient populations: (a) pyogenic meningitis; (b) meningitis in sick or hospitalized patients with tuberculosis, acute febrile encephalopathy syndrome, septicaemia, invasive pneumococcal disease or respiratory compromise; and (c) meningitis patients with comorbidities. The prevalence of confirmed bacterial meningitis in the pediatric population (0-14 years) ranged between 0.5% and 61.8%. A total of seven studies reported the prevalence of meningitis in patients of all age groups (0-75 years), with prevalence ranging between 8.68% and 78.85%. Cryptococcal meningitis was predominant in patients with positive HIV/AIDS, with a prevalence ranging between 2.09% and 53.1%. Streptococcus pneumoniae was found to be the predominant pathogen causing meningitis across different regions of India, with a frequency ranging from 4% to 61.8% in patients of all age groups. CONCLUSION This systematic literature review displayed the possible range of frequency of bacterial meningitis pathogens across a wide variety of age groups in different regions of India. Further studies are warranted to monitor meningitis cases, which may facilitate the development of prevention and treatment strategies in India.
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Affiliation(s)
- Canna J. Ghia
- Medical and Scientific Affairs, Pfizer Limited,
Mumbai, Maharashtra 400051, India
| | - Gautam S. Rambhad
- Medical and Scientific Affairs, Pfizer Limited,
Mumbai, Maharashtra, India
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Kumar D, Pannu AK, Dhibar DP, Singh R, Kumari S. The epidemiology and clinical spectrum of infections of the central nervous system in adults in north India. Trop Doct 2020; 51:48-57. [PMID: 33019910 DOI: 10.1177/0049475520959905] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Infections of the central nervous system (CNS) are a leading cause of mortality in low- and middle-income countries. We studied the spectrum, aetiology and outcome of CNS infections in 401 consecutive patients aged ≥12 years admitted at the medical emergency centre of PGIMER, Chandigarh, India. An aetiological diagnosis was made in 365 (91.0%) patients, with 149 (40.8%) microbiologically confirmed cases. CNS tuberculosis was the most prevalent cause (51.5%), followed by viral meningoencephalitis (13.9%), community-acquired bacterial meningitis (9.7%), cryptococcal meningitis (6.2%), scrub typhus meningoencephalitis (1.7%), neurocysticercosis (1.7%) and fungal brain abscess (1.7%). Human immunodeficiency virus (11.0%) and diabetes mellitus (6.2%) remained the usual predisposing conditions. We found a mortality rate of 27.9%, highest in cases without an aetiology (64.5%). Tuberculosis remained the most common cause; however, an increasing number of scrub typhus, dengue, fungal infections and non-classical bacterial pathogens may indicate a change in the epidemiology of community-acquired CNS infections in India.
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Affiliation(s)
- Devender Kumar
- Resident, Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Nehru Hospital, Chandigarh, India
| | - Ashok Kumar Pannu
- Assistant Professor, Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Nehru Hospital, Chandigarh, India
| | - Deba Prasad Dhibar
- Assistant Professor, Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Nehru Hospital, Chandigarh, India
| | - Rajveer Singh
- Assistant Professor, Department of Neurology, Postgraduate Institute of Medical Education and Research, Nehru Hospital, Chandigarh, India
| | - Savita Kumari
- Professor and Head, Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Nehru Hospital, Chandigarh, India
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Predictors of Outcome in Clinically Diagnosed Viral Encephalitis Patients: A 5-Year Prospective Study. BIOMED RESEARCH INTERNATIONAL 2020; 2020:2832418. [PMID: 32724798 PMCID: PMC7366193 DOI: 10.1155/2020/2832418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 06/20/2020] [Indexed: 12/12/2022]
Abstract
Background Viral encephalitis is the most common infectious disease of the central nervous system and is associated with high morbidity, mortality, and disability. The objective of this study was to analyze the clinical characteristics, auxiliary examinations, therapeutic management, and outcomes of patients clinically diagnosed with viral encephalitis and identify the outcome predictors. Methods We conducted a prospective observational study by collecting information from patients clinically diagnosed with viral encephalitis at the First Affiliated Hospital of Chongqing Medical University and Yongchuan Hospital of Chongqing Medical University from January 2013 to December 2018. Univariate and multivariate analyses were performed to identify factors that influenced good patient outcomes (mRS < 3) and poor patient outcomes (mRS ≥ 3) at discharge. Results In total, 216 patients were enrolled in the study. The multivariate analysis suggested that the following factors were associated with a poor outcome: Glasgow Coma Scale (GCS) score (OR 0.154, 95% CI (0.078-0.302), and P < 0.001), focal neurological deficits (OR 9.403, 95% CI (1.581-55.928), and P = 0.014), and total length of hospital stay (OR 1.119, 95% CI (1.002-1.250), and P = 0.045). However, neurological intensive care unit (NICU) treatment, status epilepticus, and abnormal electroencephalogram (EEG) findings did not influence the prognosis of patients. Conclusion Our study suggests that low GCS scores at admission, focal neurological deficits at admission, and a prolonged total hospital stay are predictors of a poor outcome at discharge in clinically diagnosed viral encephalitis patients. Whether early and effective neurological rehabilitation can improve the prognosis of viral encephalitis patients with focal neurological deficits remains to be confirmed in further studies.
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Misra U, Kumar S, Singh V, Dubey D, Kalita J. Noninvasive Ventilation in Myasthenia Gravis. Neurol India 2020; 68:648-651. [DOI: 10.4103/0028-3886.289001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Donovan J, Figaji A, Imran D, Phu NH, Rohlwink U, Thwaites GE. The neurocritical care of tuberculous meningitis. Lancet Neurol 2019; 18:771-783. [PMID: 31109897 DOI: 10.1016/s1474-4422(19)30154-1] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 02/28/2019] [Accepted: 03/05/2019] [Indexed: 12/16/2022]
Abstract
Tuberculous meningitis is the most severe form of tuberculosis and often causes critical illness with high mortality. Two primary management objectives are reducing intracranial pressure, and optimising cerebral perfusion, while killing the bacteria and controlling intracerebral inflammation. However, the evidence base guiding the care of critically ill patients with tuberculous meningitis is poor and many patients do not have access to neurocritical care units. Invasive intracranial pressure monitoring is often unavailable and although new non-invasive monitoring techniques show promise, further evidence for their use is required. Optimal management regimens of neurological complications (eg, hydrocephalus and paradoxical reactions) and of hyponatraemia, which frequently accompanies tuberculous meningitis, remain to be elucidated. Advances in the field of tuberculous meningitis predominantly focus on diagnosis, inflammatory processes, and antituberculosis chemotherapy. However, clinical trials are required to provide robust evidence guiding the most effective supportive, therapeutic, and neurosurgical interventions for tuberculous meningitis that will improve morbidity and mortality.
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Affiliation(s)
- Joseph Donovan
- Oxford University Clinical Research Unit, Centre for Tropical Medicine, Ho Chi Minh City, Vietnam; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
| | - Anthony Figaji
- Division of Neurosurgery and Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | - Darma Imran
- Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Nguyen Hoan Phu
- Oxford University Clinical Research Unit, Centre for Tropical Medicine, Ho Chi Minh City, Vietnam; Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Ursula Rohlwink
- Division of Neurosurgery and Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | - Guy E Thwaites
- Oxford University Clinical Research Unit, Centre for Tropical Medicine, Ho Chi Minh City, Vietnam; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
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Radmard S, Reid S, Ciryam P, Boubour A, Ho N, Zucker J, Sayre D, Greendyke WG, Miko BA, Pereira MR, Whittier S, Green DA, Thakur KT. Clinical Utilization of the FilmArray Meningitis/Encephalitis (ME) Multiplex Polymerase Chain Reaction (PCR) Assay. Front Neurol 2019; 10:281. [PMID: 30972012 PMCID: PMC6443843 DOI: 10.3389/fneur.2019.00281] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 03/04/2019] [Indexed: 12/27/2022] Open
Abstract
Objective: To assess the clinical utilization and performance of the FilmArray® Meningitis/Encephalitis (ME) multiplex polymerase chain reaction (PCR) panel in a hospital setting. Background: Rapid diagnosis and treatment of central nervous system (CNS) infections are critical to reduce morbidity and mortality. The ME panel is a Food and Drug Administration (FDA) approved rapid multiplex PCR assay that targets 14 bacteria, viruses, and fungi. Previous studies show an overall agreement of 93–99% between the ME panel and conventional diagnostic testing. However, few studies have evaluated the clinical implementation of the ME assay, which is available for routine use at our institution. Methods: We performed a single center retrospective chart review of inpatients who underwent ME panel testing from August 2016 to May 2017. Clinical, radiologic, and laboratory data were reviewed to determine the clinical significance of results. Indication for lumbar puncture (LP), time to results of the ME panel, and duration of antimicrobial therapy were evaluated. Results: Seven hundred and five inpatients underwent ME testing, of whom 480 (68.1%) had clinical suspicion for CNS infection with 416 (59.0%) receiving empiric antimicrobial treatment for CNS infection. The median time-to-result of the ME panel was 1.5 h (IQR, 1.4–1.7). Overall agreement between the ME panel results and clinico-laboratory assessment was 98.2%. Forty-five patients tested positive by ME, of which 12 (26.6%) were determined likely to be clinically insignificant. Conclusions: Routine availability of the ME panel led to overutilization of diagnostic test ordering, as demonstrated by the fact that over one-third of ME panel tests performed were ordered for patients with little or no suspicion for CNS infection. The median time from LP to ME panel result was 1.5 h (IQR, 1.4–1.7). The ME panel's rapid turn-around time contributed to the overuse of the test. Approximately one-quarter of positive ME results were deemed clinically insignificant, though the impact of these positive results requires additional evaluation. Twenty-four and forty-eight hours after the ME panel resulted, 68 and 25% of patients started on empiric therapy remained on antibiotics, respectively. The median time from diagnosis to discontinuation and/or narrowing of antibiotic coverage was 25.6 h (IQR, 3.6–42.5). Further consideration of the appropriate indications for use of the ME panel in clinical settings is required.
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Affiliation(s)
- Sara Radmard
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, United States
| | - Savina Reid
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, United States
| | - Prajwal Ciryam
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, United States
| | - Alexandra Boubour
- Department of Infection Prevention and Control, New York Presbyterian Hospital, New York, NY, United States
| | - Nhan Ho
- Gertrude H. Sergievsky Center, Columbia University Irving Medical Center, New York, NY, United States
| | - Jason Zucker
- Division of Infectious Diseases, Department of Medicine, Columbia University Irving Medical Center, New York, NY, United States
| | - Dean Sayre
- Mailman School of Public Health, Columbia University, New York, NY, United States
| | - William G Greendyke
- Department of Infection Prevention and Control, New York Presbyterian Hospital, New York, NY, United States.,Division of Infectious Diseases, Department of Medicine, Columbia University Irving Medical Center, New York, NY, United States
| | - Benjamin A Miko
- Division of Infectious Diseases, Department of Medicine, Columbia University Irving Medical Center, New York, NY, United States
| | - Marcus R Pereira
- Division of Infectious Diseases, Department of Medicine, Columbia University Irving Medical Center, New York, NY, United States
| | - Susan Whittier
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, United States
| | - Daniel A Green
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, United States
| | - Kiran T Thakur
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, United States
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Feng G, Tian X, Wang L, Zhao L, Wang X. Low TT4 as a predictor of poor outcomes in severe encephalitis: a multivariate analysis of 94 patients. Expert Rev Neurother 2018. [PMID: 29533109 DOI: 10.1080/14737175.2018.1452613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND To investigate the prognostic value of acute thyroid function in patients with severe encephalitis. METHODS We retrospectively analyzed information from patients with severe encephalitis from June 2012 to June 2017. Using multivariate logistic regression analysis, we examined predictors of poor outcomes in these patients after 6 months. RESULTS A total of 94 patients with severe encephalitis were included in the study. Univariate analysis showed that patients with good or poor outcomes had significantly different total thyroxine (TT4) (P = 0.012) and free triiodothyronine (FT3) (P = 0.049) levels, mechanical ventilation requirements (P < 0.001), pulmonary infection complications (P = 0.001), lengths of neurological intensive care unit (P = 0.003) and total hospital (P = 0.012) stay, and Acute Physiology and Chronic Health Evaluation (APACHE II) (P = 0.005) and Glasgow Coma Scale (GCS) (P = 0) scores. The results of multivariate analysis suggested the following factors to be associated with a poor outcome: a low TT4 level (OR 0.303, 95% CI 0.100-0.923) and a low GCS score (OR 0.683, 95% CI 0.506-0.923). CONCLUSIONS Low TT4 has a predictive value for the adverse outcomes of severe encephalitis; further study is needed for verification.
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Affiliation(s)
- Guibo Feng
- a Department of Neurology , The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology , Chongqing , China.,b Department of Neurology , Yongchuan Hospital of Chongqing Medical University , Chongqing , China
| | - Xin Tian
- a Department of Neurology , The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology , Chongqing , China
| | - Liang Wang
- a Department of Neurology , The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology , Chongqing , China
| | - Libo Zhao
- b Department of Neurology , Yongchuan Hospital of Chongqing Medical University , Chongqing , China
| | - Xuefeng Wang
- a Department of Neurology , The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology , Chongqing , China.,c Center of Epilepsy , Beijing Institute for Brain Disorders , Beijing , China
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Misra UK, Kalita J, Dubey D. A Study of Super Refractory Status Epilepticus from India. Front Neurol 2017; 8:636. [PMID: 29234303 PMCID: PMC5712310 DOI: 10.3389/fneur.2017.00636] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 11/14/2017] [Indexed: 11/13/2022] Open
Abstract
Background Super refractory status epilepticus (SRSE) is an important and recently recognized neurological emergency. Purpose In view of paucity of studies on SRSE, we report the frequency, etiology and outcome of SRSE. Methods In a hospital-based observational study during 2013 to 2016, consecutive patients with SRSE [persistence of status epilepticus (SE) for 24 h or more, or recurrence of SE on weaning of intravenous anesthetic] were included. The demographic, clinical, and laboratory data were obtained and the severity of SE was defined using Status Epilepticus Severity Score (STESS). The outcome was defined as control of SE, hospital death, and functional status at the time of discharge. Results Fourteen (13%) patients developed SRSE. Their median age was 27.5 (2–70) years and four were below 18 years of age. The etiology of SRSE was metabolic encephalopathy and encephalitis in five patients each, cerebral venous sinus thrombosis in one and miscellaneous disorders in three patients. Six (43%) patients died. The patients with SRSE had higher admission STESS (p = 0.04), and longer intensive care unit (p < 0.01) and hospital (p = 0.004) stay compared to non-SRSE group. The patients with treatable etiology had better outcome. Conclusion SRSE occurred in 13% patients with SE and 43% of them died. The SRSE patients with treatable etiology had a better outcome.
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Affiliation(s)
- Usha K Misra
- Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - Jayantee Kalita
- Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - Deepanshu Dubey
- Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
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Misra UK, Dubey D, Kalita J. Comparison of lacosamide versus sodium valproate in status epilepticus: A pilot study. Epilepsy Behav 2017; 76:110-113. [PMID: 28919386 DOI: 10.1016/j.yebeh.2017.07.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 07/03/2017] [Indexed: 01/13/2023]
Abstract
PURPOSE The purpose of this study was to compare the efficacy and safety of lacosamide (LCM) and sodium valproate (SVA) in lorazepam (LOR)-resistant SE. METHODS Patients with LOR-resistant SE were randomized to intravenous LCM 400mg at the rate of 60mg/kg/min or SVA 30mg/kg at the rate of 100mg/min. The SE severity score (STESS), duration of SE and its etiology, and MRI findings were noted. Primary outcome was seizure cessation for 1h, and secondary outcomes were 24h seizure remission, in-hospital death, and severe adverse events (SAE). RESULTS Sixty-six patients were included, and their median age was 40 (range 18-90) years. Thirty-three patients each received LCM and SVA. Their demographic, clinical, STESS, etiology, and MRI findings were not significantly different. One-hour seizure remission was not significantly different between LCM and SVA groups (66.7% vs 69.7%; P=0.79). Twenty-four-hour seizure freedom was insignificantly higher in SVA (20, 66.6%) compared with LCM group (15, 45.5%). Death (10 vs 12) and composite side effects (4 vs 6) were also not significantly different in LCM and SVA groups. LCM was associated with hypotension and bradycardia (1 patient), and SVA with liver dysfunction (6). CONCLUSION In patients with LOR-resistant SE, both LCM and SVA have comparable efficacy and safety.
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Affiliation(s)
- Usha K Misra
- Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Deepanshu Dubey
- Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Jayantee Kalita
- Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India.
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Abstract
OBJECTIVE Refractory status epilepticus (RSE) can influence the outcome of status epilepticus (SE). In the present study, we report the aetiology and predictors of outcomes of RSE in a developing country. METHODS This is a prospective hospital-based study of SE patients (continuous seizures for five minutes or more). Those who had SE persisting after two antiepileptic drugs were defined as having RSE. We present the demographic information, duration, and type of SE, and we note its severity using the status epilepticus severity score (STESS), its aetiology, comorbidities and imaging findings. The outcome of RSE was defined as cessation of seizures and the condition upon discharge, as assessed by the modified Rankin Scale. RESULTS A total of 35 (42.5%) of our 81 patients had RSE. The median duration of SE before starting treatment was 2 hours (range=0.008-160 h). The most common causes of RSE were stroke in 5 (14.3%), central nervous system (CNS) infections in 12 (34.3%) and metabolic encephalopathies in 13 (37.1%) patients. Some 21 (60%) patients had comorbidities, and the STESS was favourable in 7 (20%) patients. A total of 14 (20%) patients died, but death was directly related to SE in only one of these. Some 10 patients had super-refractory status epilepticus, which was due to CNS infection in 5 (50%) and metabolic encephalopathy in 3 (30%). On multivariate analysis, an unfavourable STESS (p=0.05) and duration of SE before treatment (p=0.01) predicted RSE. Metabolic aetiology (p=0.05), mechanical ventilation (p60 years (p=0.003) were predictors of poor outcomes. CONCLUSIONS RSE was common (42.5%) among patients with SE in a tertiary care center in India. It was associated with high mortality and poor outcomes. Age above 60 years and metabolic aetiology were found to be predictors of poor outcomes.
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Kalita J, Mani VE, Bhoi SK, Misra UK. Spectrum and outcome of acute infectious encephalitis/encephalopathy in an intensive care unit from India. QJM 2017; 110:141-148. [PMID: 27512107 DOI: 10.1093/qjmed/hcw132] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Indexed: 12/30/2022] Open
Abstract
PURPOSE To evaluate the spectrum of acute infectious encephalitis/encephalopathy syndrome (AIES) in intensive care unit (ICU) and the predictors of mechanical ventilation (MV) and outcome of these patients. METHODS AIES patients diagnosed on the basis of fever, altered sensorium, seizure and cerebrospinal fluid pleocytosis admitted to the neurology ICU were prospectively included. The demographic and clinical details, hematological, biochemical, MRI and etiological findings of the patients were noted. Need of MV, death in hospital and 3-month functional outcome were analyzed. RESULTS One hundred sixty-four out of 258 (64%) AIES patients needed ICU admission. Their median age was 35 (2-85) years and 71 (43%) were females. The etiology was viral in 44 (herpes and Japanese encephalitis in 12 each, dengue in 17, mumps, measles and varicella in 1 patient each), non-viral in 64 (scrub typhus in 48, falciparum malaria in 6, leptospira in 3 and bacterial in 7) and undetermined etiology in 56 (34%) patients. Sixty-nine (42%) patients needed MV. On multivariate analysis, Glasgow Coma Scale (GCS) score, Sequential Organ Failure Assessment (SOFA) score and raised intracranial pressure were independent predictors of MV. Forty-three (26%) patients died, and all were in the MV group. Higher SOFA score and untreatable etiology were independent predictors of mortality. At 3-month follow-up, 14% had poor and 86% had good outcome. Low GCS score, focal weakness and status epilepticus independently predicted poor outcome. CONCLUSION Twenty-six percent patients with AIES died in ICU, and 86% had good recovery at 3 months. Admission SOFA scores and untreatable etiology predicted mortality.
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Misra UK, Dubey D, Kalita J. A randomized controlled trial of lacosamide versus sodium valproate in status epilepticus. Epilepsia 2017; 58:919-919. [PMID: 28213908 DOI: 10.1111/epi.13706] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2017] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To compare the efficacy and safety of lacosamide (LCM) and sodium valproate (SVA) in lorazepam (LOR)-resistant status epilepticus (SE). METHODS Patients with LOR-resistant SE were randomized to intravenous LCM 400 mg at a rate of 60 mg/kg/min or SVA 30 mg/kg at a rate of 100 mg/min. The SE severity score (STESS), duration of SE and its etiology, and magnetic resonance imaging (MRI) findings were noted. Primary outcome was seizure cessation for 1 h, and secondary outcomes were 24 h seizure remission, in hospital death and severe adverse events (SAEs). RESULTS Sixty-six patients were included, and their median age was 40 (range 18-90) years. Thirty-three patients each received LCM and SVA. Their demographic, clinical, STESS, etiology, and MRI findings were not significantly different. One hour seizure remission was not significantly different between LCM and SVA groups (66.7% vs. 69.7%; p = 0.79). Twenty-four hour seizure freedom was higher in SVA (20, 66.6%) compared with LCM group (15, 45.5%), but this difference was not statistically significant. Death (10 vs. 12) and composite side effects (4 vs. 6) were also not significantly different in LCM and SVA groups. LCM was associated with hypotension and bradycardia (one patient), and SVA with liver dysfunction (six patients). SIGNIFICANCE In LOR-resistant SE patients, both LCM and SVA have comparable efficacy and safety. SVA resulted in slightly better 24 h seizure remission.
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Affiliation(s)
- Usha K Misra
- Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - Deepanshu Dubey
- Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - Jayantee Kalita
- Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
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Kalita J, Ranjan A, Misra UK. Outcome of Guillain-Barre syndrome patients with respiratory paralysis. QJM 2016; 109:319-23. [PMID: 26475599 PMCID: PMC4888327 DOI: 10.1093/qjmed/hcv190] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 09/29/2015] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND AND AIMS To evaluate the outcome of patients with Guillain -: Barre syndrome (GBS) having respiratory failure treated with modified intubation policy. DESIGN AND METHODS Consecutive patients with GBS having single breath count below 12 and respiratory rate >30/min were included and their clinical details noted. The patients were intubated and mechanically ventilated (MV) if their PaO2 was <60 mmHg on venturi mask, PaCo2 > 50 mmHg or pH < 7.3. Their electrophysiological subtypes and complications were noted. The hospital mortality and 3 months outcome were compared in MV and those could be managed without MV even with respiratory compromise. RESULTS Out of 369 patients, 102 (27.6%) patients had respiratory compromise who were included in this study. Of the patients with respiratory compromise, 44 (43.1%) were intubated and mechanically ventilated after a median of 4 days of hospitalization. The median duration of MV was 21 (range 1-88) days. The patients with autonomic dysfunction (56.8% vs. 19%), facial weakness (78% vs. 36.2%), bulbar weakness (81.8% vs. 31%), severe weakness (63.8% vs. 31%) and high transaminase level (47.7% vs. 25.9%) needed MV more frequently. In our study, 6.8% patients died and 26.6% had poor outcome which was similar between MV and non-MV patients. The MV patients had longer hospitalization and more complications compared with non-MV group. CONCLUSION In GBS patients with respiratory compromise, conservative intubation does not increase mortality and disability.
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Affiliation(s)
- J Kalita
- From the Department of Neurology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, UP, 226014, India
| | - A Ranjan
- From the Department of Neurology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, UP, 226014, India
| | - U K Misra
- From the Department of Neurology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, UP, 226014, India
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Infektionen des ZNS. SPRINGER-LEHRBUCH 2016. [PMCID: PMC7176219 DOI: 10.1007/978-3-662-48678-8_113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Viren, Bakterien, Protozoen, Helminthen und Pilze können, sofern es ihnen gelingt, die Blut-Hirn-Schranke zu überwinden, ZNS und gelegentlich das periphere Nervensystem involvieren; Meningitis, Enzephalitis, Hirnabszess, Meningovaskulitis oder granulomatöse Prozesse sind potenzielle Folgen.
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Misra UK, Kalita J, Betai S, Bhoi SK. Outcome of tuberculous meningitis patients requiring mechanical ventilation. J Crit Care 2015; 30:1365-9. [PMID: 26410679 DOI: 10.1016/j.jcrc.2015.08.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 08/01/2015] [Accepted: 08/25/2015] [Indexed: 10/23/2022]
Abstract
PURPOSE There is paucity of information about the outcome of tuberculous meningitis (TBM) patients on mechanical ventilation (MV). In this communication, we report the clinical characteristics, predictors of MV, and outcome of TBM patients requiring MV. METHOD Thirty-eight (18%) of 205 patients with TBM requiring MV were included; and their demographic, clinical, cerebrospinal fluid, and magnetic resonance imaging finding at admission and follow-up were noted. The ventilator-related and systemic complications, hospital death, and 3-month functional outcome were noted. The predictors of need of MV were derived by multivariate regression analysis. RESULTS There were 38 MV and 36 non-MV TBM patients who were matched for age, sex, and stage of meningitis on admission. The requirement of MV was independently related to leukocytosis, seizure, and cerebrospinal fluid pleocytosis on admission. Patients on MV had higher frequency of septicemia (9 vs 2), bedsores (6 vs 0), and gastric hemorrhage (4 vs 0) compared with non-MV patients. Only 29% of MV patients survived and had poor outcome at 3 months; but in the non-MV group, all the patients survived, and only 11% had poor outcome. CONCLUSION Mechanical ventilation was needed in 18% TBM patients because of TBM-related or systemic complications. Those requiring MV had high mortality and may be categorized separately.
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Affiliation(s)
- U K Misra
- Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Science, Raebareily Rd, Lucknow
| | - J Kalita
- Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Science, Raebareily Rd, Lucknow.
| | - S Betai
- Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Science, Raebareily Rd, Lucknow
| | - S K Bhoi
- Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Science, Raebareily Rd, Lucknow
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Francisco NM, Hsu NJ, Keeton R, Randall P, Sebesho B, Allie N, Govender D, Quesniaux V, Ryffel B, Kellaway L, Jacobs M. TNF-dependent regulation and activation of innate immune cells are essential for host protection against cerebral tuberculosis. J Neuroinflammation 2015; 12:125. [PMID: 26112704 PMCID: PMC4488051 DOI: 10.1186/s12974-015-0345-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 06/16/2015] [Indexed: 11/10/2022] Open
Abstract
Background Tuberculosis (TB) affects one third of the global population, and TB of the central nervous system (CNS-TB) is the most severe form of tuberculosis which often associates with high mortality. The pro-inflammatory cytokine tumour necrosis factor (TNF) plays a critical role in the initial and long-term host immune protection against Mycobacterium tuberculosis (M. tuberculosis) which involves the activation of innate immune cells and structure maintenance of granulomas. However, the contribution of TNF, in particular neuron-derived TNF, in the control of cerebral M. tuberculosis infection and its protective immune responses in the CNS were not clear. Methods We generated neuron-specific TNF-deficient (NsTNF−/−) mice and compared outcomes of disease against TNFf/f control and global TNF−/− mice. Mycobacterial burden in brains, lungs and spleens were compared, and cerebral pathology and cellular contributions analysed by microscopy and flow cytometry after M. tuberculosis infection. Activation of innate immune cells was measured by flow cytometry and cell function assessed by cytokine and chemokine quantification using enzyme-linked immunosorbent assay (ELISA). Results Intracerebral M. tuberculosis infection of TNF−/− mice rendered animals highly susceptible, accompanied by uncontrolled bacilli replication and eventual mortality. In contrast, NsTNF−/− mice were resistant to infection and presented with a phenotype similar to that in TNFf/f control mice. Impaired immunity in TNF−/− mice was associated with altered cytokine and chemokine synthesis in the brain and characterised by a reduced number of activated innate immune cells. Brain pathology reflected enhanced inflammation dominated by neutrophil influx. Conclusion Our data show that neuron-derived TNF has a limited role in immune responses, but overall TNF production is necessary for protective immunity against CNS-TB.
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Affiliation(s)
- Ngiambudulu M Francisco
- Division of Immunology, Department of Clinical Laboratory Science, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Observatory, Cape Town, 7925, South Africa.
| | - Nai-Jen Hsu
- Division of Immunology, Department of Clinical Laboratory Science, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Observatory, Cape Town, 7925, South Africa.
| | - Roanne Keeton
- Division of Immunology, Department of Clinical Laboratory Science, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Observatory, Cape Town, 7925, South Africa.
| | - Philippa Randall
- Division of Immunology, Department of Clinical Laboratory Science, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Observatory, Cape Town, 7925, South Africa.
| | - Boipelo Sebesho
- Division of Immunology, Department of Clinical Laboratory Science, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Observatory, Cape Town, 7925, South Africa.
| | - Nasiema Allie
- Division of Immunology, Department of Clinical Laboratory Science, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Observatory, Cape Town, 7925, South Africa. .,Division for Postgraduate Studies, University of the Western Cape, Bellville, South Africa.
| | - Dhirendra Govender
- Division of Anatomical Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa. .,National Health Laboratory Service, Johannesburg, South Africa.
| | - Valerie Quesniaux
- Experimental and Molecular Immunology and Neurogenetics, University of Orleans, Orleans, France. .,CNRS UMR7355, Orleans, France.
| | - Bernhard Ryffel
- Experimental and Molecular Immunology and Neurogenetics, University of Orleans, Orleans, France. .,CNRS UMR7355, Orleans, France.
| | - Lauriston Kellaway
- Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.
| | - Muazzam Jacobs
- Division of Immunology, Department of Clinical Laboratory Science, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Observatory, Cape Town, 7925, South Africa. .,National Health Laboratory Service, Johannesburg, South Africa.
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Influence of Malnutrition on Adverse Outcome in Children with Confirmed or Probable Viral Encephalitis: A Prospective Observational Study. BIOMED RESEARCH INTERNATIONAL 2015; 2015:407473. [PMID: 25695076 PMCID: PMC4324747 DOI: 10.1155/2015/407473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 11/06/2014] [Accepted: 11/18/2014] [Indexed: 11/25/2022]
Abstract
A prospective observational study was conducted in a tertiary care teaching hospital from August 2008 to August 2009 to explore the independent predictors of adverse outcome in the patients with confirmed/probable viral encephalitis. The primary outcome variable was the incidence of adverse outcomes defined as death or severe neurological deficit such as loss of speech, motor deficits, behavioural problems, blindness, and cognitive impairment. Patients with confirmed or probable viral encephalitis were classified into two groups based on their Z-score of weight-for-age as per WHO growth charts. Group I. Patients with confirmed or probable viral encephalitis with weight-for-age (W/A) Z-scores below −2SD were classified as undernourished. Group II. Patients with confirmed or probable viral encephalitis were classified as having normal nutritional status (weight-for-age Z-score >−2SD). A total of 114 patients were classified as confirmed or probable viral encephalitis based on detailed investigations. On multivariate logistic regression, undernutrition (adjusted OR: 5.05; 95% CI: 1.92 to 13.44) and requirement of ventilation (adjusted OR: 6.75; 95% CI: 3.63 to 77.34) were independent predictors of adverse outcomes in these patients. Thus, the results from our study highlight that the association between undernutrition and adverse outcome could be extended to the patients with confirmed/probable viral encephalitis.
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