Try a new search

Format these results:

Searched for:

Department/Unit:Neurology

Total Results:

24282


Interrogating an ICD-coded electronic health records database to characterize the epidemiology of prosopagnosia

Pressl, Christina; Jiang, Caroline S; Correa da Rosa, Joel; Friedrich, Maximilian; Vaughan, Roger; Freiwald, Winrich A; Tobin, Jonathan N
Introduction/UNASSIGNED:Recognition of faces of family members, friends, and colleagues is an important skill essential for everyday life. Individuals affected by prosopagnosia (face blindness) have difficulty recognizing familiar individuals. The prevalence of prosopagnosia has been estimated to be as high as 3%. Prosopagnosia can severely impact the quality of life of those affected, and it has been suggested to co-occur with conditions such as depression and anxiety. Methods/UNASSIGNED:To determine real-world diagnostic frequency of prosopagnosia and the spectrum of its comorbidities, we utilized a large database of more than 7.5 million de-identified electronic health records (EHRs) from patients who received care at major academic health centers and Federally Qualified Health Centers in New York City. We designed a computable phenotype to search the database for diagnosed cases of prosopagnosia, revealing a total of n = 902 cases. In addition, data from a randomly sampled matched control population (n = 100,973) were drawn from the database for comparative analyses to study the condition's comorbidity landscape. Diagnostic frequency of prosopagnosia, epidemiological characteristics, and comorbidity landscape were assessed. Results/UNASSIGNED:We observed prosopagnosia diagnoses at a rate of 0.012% (12 per 100,000 individuals). We discovered elevated frequency of prosopagnosia diagnosis for individuals who carried certain comorbid conditions, such as personality disorder, depression, epilepsy, and anxiety. Moreover, prosopagnosia diagnoses increased with the number of comorbid conditions. Conclusions/UNASSIGNED:Results from this study show a wide range of comorbidities and suggest that prosopagnosia is vastly underdiagnosed. Findings imply important clinical consequences for the diagnosis and management of prosopagnosia as well as its comorbid conditions.
PMCID:8057409
PMID: 33948237
ISSN: 2059-8661
CID: 4866332

A case of complex multisite carbapenem-resistant Klebsiella pneumoniae infection and literature analysis. [Chinese]

Li, Q; Xu, C; Ye, S; Shen, X; Sheng, H
Objective; To analyze a case of complex multisite carbapenems-resistant Klebsiella pneumoniae (CRKP) infection,and to evaluate the rationality of the treatment scheme,so as to provide reference for rational use of drugs.
Method(s): The clinical and laboratory data of the patient were collected,and the clinical efficacy was observed,laboratory indexes and the results of etiological examination were compared, treatment effect was evaluated and relevant literature was reviewed. Results and
Conclusion(s): In the treatment of the patient,meropenem,amikacin combined with fosfomycin were used. Literature retrieval revealed that there were many kinds of antimicrobial therapy options for CRKP infection, but cure rate was not clear. The prevalence of CRKP was more feasible in the intensive care unit(ICU). Reducing irrational use of broad-spectrum antibacterials and unnecessary invasive manipulation were effective strategies for the control of CRKP prevalence and reduction of economic burden on patients.
Copyright
EMBASE:634093021
ISSN: 1671-2838
CID: 4863182

Believers versus deniers: The radicalization of sports concussion and chronic traumatic encephalopathy (CTE) science.

Barr, William B.
Unprecedented media coverage of concussion in sport has led to increased fears regarding the potential negative effects of participation in contact sports including North American football and ice hockey. Initial responses of professional sports leagues to implementation of acute concussion management practices and reports of a neurodegenerative condition known as chronic traumatic encephalopathy (CTE) developing in retired players caused an atmosphere of distrust whereby the leagues were accused of maintaining cover-ups analogous to what had been seen in association with studies of tobacco and smoking. This article reviews the important role that psychology has played in the study of sports concussion and in the establishment of methods currently used to diagnose and track concussion symptoms. Results of existing studies have shown that the neurobiological effects of concussion are rather short-lived with development of persisting symptoms in some individuals associated more with psychosocial factors than underlying physiological effects. With regard to CTE, the status of the science remains preliminary with little definitive information known about its epidemiology or cause. In the midst of the ongoing controversy, a polarized climate has developed in association with concussion and CTE, divided by believers in the dangers of long-term consequences and deniers who question the status of the existing science. The conclusion is that it is important for psychology to extend its scope of study to provide increased understanding of the social factors underlying the current polarized climate while continuing to provide the public with an accurate and reliable account of the existing science. (PsycInfo Database Record (c) 2020 APA, all rights reserved)Public Significance Statement"”Continued media reporting of the sports concussion and its potential long-term effects has been accompanied by public concerns about the safety of contact sports and potential development of chronic traumatic encephalopathy (CTE). Controversies have emerged about the status of the science, creating polarization on the topic. Psychology has provided significant contributions to our scientific knowledge on sports concussion and has the potential to provide a key to understanding the factors underlying division on these topics. (PsycInfo Database Record (c) 2020 APA, all rights reserved)Une couverture médiatique sans précédent des commotions cérébrales dans le sport a entraîné une augmentation des craintes quant aux effets négatifs potentiels de la participation aux sports de contact, notamment au football et au hockey sur glace en Amérique du Nord. Les premières réponses des ligues sportives professionnelles à la mise en Å“uvre de pratiques de gestion des commotions aiguës et les déclarations de maladie neurodégénérative connue sous le nom d"™encéphalopathie traumatique chronique (CTE) en développement chez les joueurs retraités ont provoqué une atmosphère de méfiance où les ligues ont été accusées de dissimulations de manière similaire à ce qui avait été observé avec les études sur le tabac et le tabagisme. Le présent article examine le rôle important que la psychologie a joué dans l"™Ã©tude des commotions liées au sport et dans l"™Ã©tablissement de méthodes actuellement utilisées pour diagnostiquer et surveiller les symptômes de commotion cérébrale. Les résultats des études existantes ont montré que les effets neurobiologiques de commotion cérébrale sont plutôt de courte durée avec l"™apparition de symptômes persistants, chez certaines personnes, plutôt associés à des facteurs psychosociaux qu"™aux effets physiologiques sous-jacents. En ce qui concerne la CTE, le statut de la science reste préliminaire, avec peu de renseignements définitifs connus sur son épidémiologie ou sa cause. Au cÅ“ur de la controverse actuelle, un climat polarisé s"™est développé en lien avec la commotion cérébrale et la CTE, divisé par les croyants aux dangers des conséquences à long terme et les négateurs qui remettent en question le statut de la science existante. En conclusion, il est important pour la psychologie d"™Ã©tendre sa portée d"™Ã©tude afin de mieux comprendre les facteurs sociaux sous-jacents au climat polarisé actuel tout en continuant à fournir au public un compte rendu exact et fiable de la science existante. (PsycInfo Database Record (c) 2020 APA, all rights reserved)
SCOPUS:85103483814
ISSN: 0708-5591
CID: 4860412

Patient Characteristics and Outcomes Associated with Decline in Stroke Volumes During the Early COVID-19 Pandemic

Wallace, Adam N; Asif, Kaiz S; Sahlein, Daniel H; Warach, Steven J; Malisch, Timothy; LaFranchise, E Francis; Geraghty, Scott; Kreitel, K Derek; Lamonte, Marian P; Miley, Jefferson T; Amuluru, Krishna; Gibson, Daniel P
BACKGROUND AND PURPOSE/OBJECTIVE:Delayed evaluation of stroke may contribute to COVID-19 pandemic-related morbidity and mortality. This study evaluated patient characteristics, process measures and outcomes associated with the decline in stroke presentation during the early pandemic. METHODS:Volumes of stroke presentations, intravenous thrombolytic administrations, and mechanical thrombectomies from 52 hospitals from January 1-June 30, 2020 were analyzed with piecewise linear regression and linear spline models. Univariate analysis compared pandemic (case) and pre-pandemic (control) groups defined in relation to the nadir of daily strokes during the study period. Significantly different patient characteristics were further evaluated with logistic regression, and significantly different process measures and outcomes were re-analyzed after propensity score matching. RESULTS:Analysis of 7,389 patients found daily stroke volumes decreased 0.91/day from March 12-26 (p < 0.0001), reaching a nadir 35.0% less than expected, and increased 0.15 strokes/day from March 27-June 23, 2020 (p < 0.0001). Intravenous thrombolytic administrations decreased 3.3/week from February 19-March 31 (p = 0.0023), reaching a nadir 33.4% less than expected, and increased 1.4 administrations/week from April 1-June 23 (p < 0.0001). Mechanical thrombectomy volumes decreased by 1.5/week from February 19-March 31, 2020 (p = 0.0039), reaching a nadir 11.3% less than expected. The pandemic group was more likely to ambulate independently at baseline (p = 0.02, OR = 1.60, 95% CI = 1.08-2.42), and less likely to present with mild stroke symptoms (NIH Stroke Scale ≤ 5; p = 0.04, OR = 1.01, 95% CI = 1.00-1.02). Process measures and outcomes of each group did not differ, including door-to-needle time, door-to-puncture time, and successful mechanical thrombectomy rate. CONCLUSION/CONCLUSIONS:Stroke presentations and acute interventions decreased during the early COVID-19 pandemic, at least in part due to patients with lower baseline functional status and milder symptoms not seeking medical care. Public health messaging and initiatives should target these populations.
PMCID:7762709
PMID: 33862541
ISSN: 1532-8511
CID: 4846432

Preclinical and first-in-human-brain-cancer applications of [18F]poly (ADP-ribose) polymerase inhibitor PET/MR

Young, Robert J; Demétrio De Souza França, Paula; Pirovano, Giacomo; Piotrowski, Anna F; Nicklin, Philip J; Riedl, Christopher C; Schwartz, Jazmin; Bale, Tejus A; Donabedian, Patrick L; Kossatz, Susanne; Burnazi, Eva M; Roberts, Sheryl; Lyashchenko, Serge K; Miller, Alexandra M; Moss, Nelson S; Fiasconaro, Megan; Zhang, Zhigang; Mauguen, Audrey; Reiner, Thomas; Dunphy, Mark P
Background/UNASSIGNED:F]PARPi, as a diagnostic tool to differentiate between brain cancers and treatment-related changes. Methods/UNASSIGNED:F]PARPi acquisition on a dedicated positron emission tomography/magnetic resonance (PET/MR) scanner. Lesion diagnosis was established by pathology when available or by Response Assessment in Neuro-Oncology (RANO) or RANO-BM response criteria. Resected tissue also underwent PARPi-FL staining and PARP1 immunohistochemistry. Results/UNASSIGNED:F]PARPi uptake on PET/MR in active brain cancers and low uptake in treatment-related changes independent of blood-brain barrier disruption. Immunohistochemistry results confirmed higher PARP1 expression in cancerous than in noncancerous tissue. Specificity was also corroborated by blocking fluorescent tracer uptake with an excess unlabeled PARP inhibitor in patient cancer biospecimen. Conclusions/UNASSIGNED:F]PARPi as a diagnostic tool to evaluate patients with brain cancers and possible treatment-related changes.
PMCID:7758909
PMID: 33392502
ISSN: 2632-2498
CID: 4840762

A novel beta-lactamase inhibitor (durlobactam, dur) and beta-lactams enhance susceptibility against multidrug-resistant (MDR) mycobacterium abscessus (mAb) [Meeting Abstract]

Dousa, K M; Kurz, S G; Bethel, C; Miller, A; Bonomo, R A
Background. Mab is a MDR nontuberculous mycobacterium that causes lung infections in patients with structural lung disease. Mab harbors a chromosomally encoded class A beta-lactamase, BlaMab, able to hydrolyze penicillins, cephalosporins and carbapenems. L,D- and D,D-transpeptidases (L,D TP and D,D TP) shape peptidoglycan (PG) synthesis and contribute to cell wall structure. Select combinations of beta-lactams that inhibit L,D TP and D,D TPs and BlaMab are desirable as they can potentially improve treatment outcomes. DUR is a novel
EMBASE:634731958
ISSN: 2328-8957
CID: 4841532

Combination cefuroxime and sulopenem is active in vitro against mycobacterium Abscessus [Meeting Abstract]

Dousa, K M; Nguyen, D C; Kurz, S G; Taracila, M A; Bethel, C; Bonomo, R A
Background. Mycobacterium abscessus (Mab) is a highly drug-resistant nontuberculous mycobacteria (NTM). Efforts to discover new treatments for Mab infections are accelerating with a focus on cell wall synthesis proteins (L, D-transpeptidases, LdtMab1-5, and D, D-carboxypeptidase) that are targeted by combination beta-lactam antibiotics. The US Food and Drug Administration (FDA) has granted Qualified Infectious Disease Product (QIDP) to the oral and intravenous (IV) formulations of Sulopenem (SUL). Data on SUL in vitro activity against Mab is currently unavailable. Here, we evaluated activity of SUL alone and in combination with Cefuroxime salt (CEF) against representative clinical isolates belonging to the Mab complex. Both CEF and SUL are available in oral formulation and can be considered as oral step-down therapy. Methods. Minimum inhibitory concentrations (MICs) of SUL and CEF alone and in combination were determined using microdilution. Approximately 5 x 105 colony- forming units (CFU) per milliliter were inoculated into Middlebrook 7H9 Broth supplemented with 10% (vol/vol) oleic albumin dextrose catalase and 0.05% (vol/vol) Tween 80. CEF was added at fixed concentration of 4 mug/ml to serial dilutions of SUL. Mab isolates were incubated with test agents at 30 degreeC for 48 h, and MIC was defined as lowest antibiotic concentration that prevented visible bacterial growth. Results. Fifty-five clinically derived and previously characterized isolates were tested in these assays. MIC50 and MIC90 of CEF is 16 and 32 ug/ml; MIC50 and MIC90 of SUL is 2 and 4 ug/ml, the range of MICs are as follows: CEF (8 -> 64 ug/ml); SUL (1->8 ug/ml); and SUL and CEF at fixed 4 ug/ml (< 0.25 -> 4 ug/ml). Combination SUL and CEF lowered MIC to < 0.25 ug/ml in 52 clinical isolate (Figure).
Conclusion(s): Our results support the emerging hypothesis that dual beta-lactam therapy is a promising strategy in the treatment of serious Mab infections. Investigating the biochemical rationale for this combination will support the application to clinical trials
EMBASE:634731434
ISSN: 2328-8957
CID: 4841592

Transcranial Magnetic Resonance-Guided Focused Ultrasound Thalamotomy in Essential Tremor: A Comprehensive Lesion Characterization

Pineda-Pardo, José Angel; Urso, Daniele; Martínez-Fernández, Raul; Rodríguez-Rojas, Rafael; Del-Alamo, Marta; Millar Vernetti, Patricio; Máñez-Miró, Jorge U; Hernández-Fernández, Frida; de Luis-Pastor, Esther; Vela-Desojo, Lydia; Obeso, José A
BACKGROUND:Transcranial magnetic resonance-guided focused ultrasound (tcMRgFUS) thalamotomy is a novel and effective treatment for controlling tremor in essential tremor patients. OBJECTIVE:To provide a comprehensive characterization of the radiological, topographical, and volumetric aspects of the tcMRgFUS thalamic lesion, and to quantify how they relate to the clinical outcomes. METHODS:In this study, clinical and radiological data from forty patients with medically-refractory essential tremor treated with unilateral tcMRgFUS thalamotomy were retrospectively analyzed. Treatment efficacy was assessed with Clinical Rating Scale for Tremor (CRST). Lesions were manually segmented on T1, T2, and susceptibility-weighted images, and 3-dimensional topographical analysis was then carried out. Statistical comparisons were performed using nonparametric statistics. RESULTS:The greatest clinical improvement was correlated with a more inferior and posterior lesion, a bigger lesion volume, and percentage of the ventral intermediate nucleus covered by the lesion; whereas, the largest lesions accounted for the occurrence of gait imbalance. Furthermore, the volume of the lesion was significantly predicted by the number of sonications surpassing 52°C. CONCLUSION:Here we provide a comprehensive characterization of the thalamic tcMRgFUS lesion including radiological and topographical analysis. Our results indicate that the location and volume of the lesion were significantly associated with the clinical outcome and that mid-temperatures may be responsible for the lesion size. This could serve ultimately to improve targeting and judgment and to optimize clinical outcome of tcMRgFUS thalamotomy.
PMID: 31574145
ISSN: 1524-4040
CID: 4839932

Parkin Pleiotropy: Extremely Atypical Phenotypes in Patients With Compound Heterozygous Mutations [Case Report]

Millar Vernetti, Patricio; Rossi, Malco; Merello, Marcelo
Background:Parkin mutations are suspected in early-onset Parkinson's disease with early motor complications, and in pedigrees showing an autosomal recessive pattern. Some compound heterozygous mutations can present with various uncommon phenotypes. Case Report:Two siblings with the same mutations, one with atypical postural and action tremor, and the other with an axonal motor autonomic neuropathy. A woman with a 45-year history of slowly progressive parkinsonism with no motor complications. Discussion:Due to the variability of phenotypes of Parkin mutations, testing should also be warranted in patients with atypical tremor syndromes or axonal polyneuropathy when more common causes have been ruled out. Highlights:We report three patients with extremely atypical parkin mutation phenotypes: an atypical tremor syndrome, an axonal motor autonomic neuropathy, and a remarkably slowly progressive parkinsonism. This shows that parkin mutations may present with a highly variable phenotype, and should be considered in patients with such manifestations.
PMCID:7427657
PMID: 32864185
ISSN: 2160-8288
CID: 4839952

Traumatic vs Spontaneous Cerebrospinal Fluid Hypotension Headache: Our experience in a series of 137 cases

Villamil, Facundo; Ruella, Mauro; Perez, Adriana; Millar Vernetti, P; Paday Formenti, Maria Emilia; Acosta, J N; Goicochea, M T
OBJECTIVES/OBJECTIVE:To analyze and compare differences between epidemiological and clinical aspects, as well as radiologic findings and treatment, in a series of adult patients with traumatic intracranial hypotension (TIH) and spontaneous intracranial hypotension (SIH) treated at our institution in order to identify predictors of recurrence. BACKGROUND:Cerebrospinal fluid hypotension headache (CSF-HH) is often caused by orthostasis and relieved by recumbency. Etiology can be either traumatic or spontaneous. Indirect signs of CSF hypotension are often observed on brain MRI. The most common therapeutic approach is conservative management and, when necessary, the use of an epidural blood patch. METHODS:Medical history and brain MRI of adult patients consulting our institution with a diagnosis of CSF-HH between January 2010 and March 2019, were retrospectively reviewed. Clinical criteria as per the International Classification of Headache Disorders, 3rd edition, were applied. Presence of typical MRI findings were assessed by two experienced neuroradiologists, previously informed of patients' clinical characteristics. Patients were divided into two different groups, namely: Group A: Spontaneous Intracranial Hypotension (SIH) and Group B: Traumatic Intracranial Hypotension (TIH). Recurrence was defined as return of symptoms after one month of remission. In order to find predictors of recurrent intracranial hypotension the patients were divided into three groups: Recurrent Orthostatic headache (ROH); (33 cases; 25%); Non-Recurrent Orthostatic headache (NROH) (84; 61%) and Patients missing follow-up (20; 15%). The latter were excluded from the regression analysis. RESULTS:137 patients with CSF-HH were identified: 80 traumatic (54 women, age 33.8 ± 10.4 years) and 57 spontaneous (31 women, age 43.9 ± 15.2 years). Median follow-up was 35 months (range: 8 months-9 years). Compared with TIH, patients with SIH showed lower frequency of orthostatic headache and higher frequency of aural fullness. Also, in patients with SIH, brain MRI showed a higher frequency of pachymeningeal enhancement, ventricular collapse, cisternal obliteration, posterior fossa crowding, brainstem distortion, and a more likely presence of subdural collections. Patients with SIH required an epidural blood patch treatment more often, showed higher recurrence rates, and were more prone to develop subdural hematomas. RECURRENCE/UNASSIGNED:As more days elapsed between headache onset and clinical consultation, the presence of spontaneous intracranial hypotension, tinnitus, and thoraco-lumbo-sacral pain were all more common in patients with recurrence. Findings on brain MRI suggesting higher recurrence rates in patients included: ventricular collapse, brainstem distortion, and posterior fossa crowding. Patients treated with invasive therapy (epidural blood patch) presented a higher recurrence rate. In the multivariate regression analysis, the only independent predictor of recurrence after adjusting for age, sex and traumatic vs spontaneous cause of IH, was brainstem distortion diagnosed on MRI (OR 5.13, 95% CI: 1.2-21.7; p = 0.026). CONCLUSIONS:SIH and TIH can no longer be likened, since there is considerable variability in clinical presentation, imaging findings, response to treatment and recurrence rates. Anatomical abnormalities underlying SIH leaks are often complex and not simply a disruption of normal structures as encountered in TIH, which could explain why treatment success is poor and recurrence rates remain high.
PMID: 32791437
ISSN: 1872-6968
CID: 4839942