Length of Stay, Cost, and Outcomes related to Traumatic Subdural Hematoma in inpatient setting in the United States.

OBJECTIVE: In the US, the prevalence of traumatic subdural hematoma (TSDH) continues to increase. Using a nationally representative sample of discharge records of patients with TSDH, the study objectives were to estimate trend in number of TSDH cases, surgical management, inpatient cost, length of stay (LOS), mortality rate, and complication rate; and to identify the association of sociodemographic, clinical and hospital characteristics with complications and mortality. METHOD: We identified patients with a primary diagnosis of TSDH from the National Inpatient Sample (NIS) database from 2010 to 2017. Quarterly and monthly trends were estimated using interrupted time series design. Multivariate logistic regressions measured association between various factors and inpatient death and complications. RESULTS: Number of cases, mean LOS, rate of complication increased. Proportion of patients undergoing surgery, mean inpatient cost, inpatient mortality decreased. Mean inpatient cost was $23,182.40 and LOS was 6.41 days. Odds of inpatient death and complications increased with injury severity score and comorbid conditions requiring use of anticoagulants. Odds of inpatient death were highest among those ≥85 years old and in south and northeast region. CONCLUSION: Given the increase in prevalence of TSDH in USA, additional resources should be allocated toward improving patient outcomes and lowering healthcare costs.

Discordance Between Physician Assessment and Patient-Reported Depressive Symptoms in Parkinson Disease.

OBJECTIVE: To assess concordance between physician assessment and patient-reported symptoms when screening for depression in Parkinson disease (dPD). BACKGROUND: Depression in Parkinson disease is highly prevalent (∼40%) and has a significant impact on quality of life and disability, yet physician recognition and treatment remain inadequate. METHODS: One thousand seventy-six patients with PD completed the Brief Symptom Inventory-18 (BSI-18), a screening questionnaire for psychiatric symptoms, which was compared to item #3 (depression) on the Unified Parkinson's Disease Rating Scale (UPDRS). RESULTS: The mean BSI-18 depression score was 51.4 (9.7). Of the 170 (16%) patients screening positive for dPD on the BSI-18, 104 (61%) were not recognized as depressed by neurologists on the UPDRS. Factors associated with lower neurologist recognition included male gender, better mental health quality of life, and lack of antidepressant use. CONCLUSION: More than 60% of patients screening positive for depression on self-report were not recognized by neurologists on the UPDRS. A patient-reported screening tool for depression may improve recognition and management of dPD.

Atypical presentation of probable Creutzfeldt-Jakob disease associated with anti-Zic4 antibody: Literature review of neuronal antibodies in Creutzfeldt-Jakob disease.

INTRODUCTION: Sporadic Creutzfeldt-Jakob disease is a prion disease characterized by rapidly progressive dementia, ataxia and myoclonus. Atypical phenotype masquerading as stroke, movement disorders or autoimmune encephalitis have been described. Here, I report a probable case of sCJD with an atypical presentation associated with anti-Zic4 antibody and review the literature of neuronal antibodies in CJD. CASE REPORT: A 70 year-old gentleman is admitted with a 2-month history of recurrent stroke-like symptoms associated with behavioral disturbances, gait ataxia and rapidly progressive dementia. His initial examination demonstrated akinetic mutism, diffuse rigidity, dysautononia, and Cheyne-Stokes respiration. Over the following weeks his condition progressed to profound coma. A comprehensive infectious, metabolic, inflammatory and autoimmune work-up yielded negative results. Empiric immunosuppressive therapy ensued. He expired three months after symptoms onset. Autopsy was not performed. After his demise, prion tests came back abnormal for elevated 14-3-3 protein, total tau and positive RTQuIC. Later on, anti-Zic4 antibodies were found in serum. CONCLUSION: This case underscores the importance of a high index of suspicion for CJD even in case of atypical features or the concurrence of neuronal antibodies. Further larger prospective studies on the prevalence of these neuronal antibodies in CJD and the contribution of these autoantibodies to disease pathophysiology are necessary.

Spontaneous Intracranial Hypotension Associated with Kinetic Tremor and Ataxia.

BACKGROUND: Spontaneous intracranial hypotension (SIH) is a clinically variable syndrome caused by low cerebrospinal fluid (CSF) pressure due to a non-traumatic CSF leak. PHENOMENOLOGY SHOWN: This case describes a 68-year-old gentleman who presents with chronic and slightly progressive kinetic tremor of bilateral hands associated with gait ataxia and gait start hesitation. EDUCATIONAL VALUE: This case underscores the importance of having a high index of suspicion for the diagnosis of SIH when encountering a patient presenting with late-onset progressive kinetic tremor and gait ataxia syndrome.

Reply to: Spontaneous Intracranial Hypotension and its Association with Movement Disorders?

In Response To: Onder H. Spontaneous intracranial hypotension and its association with movement disorders? Tremor Other Hyperkinet Mov. 2016; 6. doi: 10.7916/D84B31NS Original Article: Salazar R. Spontaneous intracranial hypotension associated with kinetic tremor and ataxia. Tremor Other Hyperkinet Mov. 2016; 6. doi: 10.7916/D8HQ3ZN5.

Molecular diagnosis of extrapulmonary tuberculosis and sensitivity to rifampicin with an automated real-time method.

INTRODUCTION: Tuberculosis continues to be a global public health problem, the extrapulmonary form being estimated to occur in 10-20% of immunocompetent individuals, increasing in patients who are carriers of the human immunodeficiency virus (HIV); its diagnosis is difficult with conventional methods due to the paucibacillary nature of samples. The Xpert® MTB/RIF test represents an important development in the molecular detection of Mycobacterium tuberculosis and has been used with a variety of non-respiratory clinical samples.  OBJECTIVE: To determine the effectiveness of Xpert® MTB/RIF in the detection of M. tuberculosis and sensitivity to rifampicin in patients with suspected extrapulmonary tuberculosis attending Hospital Universitario de San Vicente Fundación in Medellín in 2013-2014.  MATERIALS AND METHODS: This was a descriptive, cross-sectional ambispective study of 372 consecutive samples from 301 patients with suspected extrapulmonary tuberculosis, who were subjected to bacilloscopy, followed by culture in Ogawa Kudoh and the Xpert® MTB/RIF molecular test.  RESULTS: The most frequent base diagnosis (60%) for the 182 patients was infection with HIV. Using the culture as reference, the sensitivity and general specificity of the molecular test was 94% (95% CI: 83-100) and 97% (95% CI: 95-99), respectively; for bacilloscopy it was 38.71(95% CI: 19-57) and 100% (95% CI: 99-100), respectively. Sensitivities higher than 75% were found in analyses stratified by samples. Thirty-seven of the isolates were sensitive and one resistant to rifampicin.  CONCLUSION: Xpert® MTB/RIF performed well in samples from different tissues and liquids, representing a significant advance in support of extrapulmonary tuberculosis diagnosis in terms of time and percentage positivity.

An unusual presentation of herpes simplex encephalitis with negative PCR.

A 74-year-old man presented with acute right-sided hemiparesis and epilepsia partialis continua in association with fever and confusion. Initial workup revealed possible cerebritis in the left medial frontal lobe without involvement of the temporal lobes. Cerebrospinal fluid (CSF) analysis revealed minimal lymphocytic pleocytosis but negative real-time herpes simplex virus (HSV) PCR. Acyclovir was discontinued on day 5 due to a negative infectious workup and clinical improvement. On day 9 his condition deteriorated and he was transferred to a higher level of acuity for advanced supportive care. Worsening encephalopathy and refractory status epilepticus ensued despite medical care. Repeat CSF analysis showed mild lymphocytic pleocytosis with negative real-time HSV PCR. Brain MRI revealed progression of cortical enhancement. Immunosuppressive therapy and plasma exchange were attempted without clinical response. On day 24, another lumbar puncture showed only mild lymphocytic pleocytosis. Brain MRI showed involvement of the right medial temporal lobe. Subsequently, acyclovir was resumed. The HSV-1 PCR result was positive on day 30. Unfortunately, the patient expired.

Alternating hemidystonia following traumatic brain injury as an unusual presentation of paroxysmal autonomic instability with dystonia syndrome.

A 20-year-old man presented to the neurotrauma intensive care unit following blunt head injury. MRI revealed subarachnoid haemorrhage and multiple intraparenchymal haemorrhages suggesting severe brain injury. During recovery, the patient displayed intermittent episodes of alternating hemibody spasms with decerebrate/decorticate dystonic posturing. Episodes presented with autonomic dysregulation including hyperthermia, diaphoresis, tachypnoea, tachycardia and hypertension. Concern for seizure activity prompted simultaneous video monitoring and EEG testing. Results were without epileptiform activity suggesting against seizure as cause for alternating hemibody spasms. Paroxysmal autonomic instability with dystonia (PAID) was considered despite the unusual presentation. Intravenous hydromorphone was used for treatment, which relieved symptoms of autonomic dysregulation and dystonic posturing. PAID syndrome was diagnosed based on presentation with intermittent episodes of dystonia, autonomic dysregulation, absence of epileptiform activity and rapid response to opioid treatment. This case illustrates the clinical variability of this uncommon syndrome because alternating hemidystonia as main manifestation has not been previously described.

Bilateral hearing loss heralding sporadic Creutzfeldt-Jakob disease: a case report and literature review.

OBJECTIVE: To report a case of sporadic Creutzfeldt-Jakob disease (CJD) with bilateral hearing loss at onset and literature review of the scarce cases of CJD with similar audiologic manifestations at presentation. CASE REPORT: A 67-yr-old man presented to the hospital for evaluation of rapid progression of behavioral decline, unsteady gait, and bilateral hearing loss. Three months before admission, he abruptly developed bilateral hypoacusis without associated tinnitus or vertigo. Shortly after, his family noted an ataxic gait and behavioral changes, for example, paranoid delusions. Initial workup, including a complete autoimmune panel and heavy metals, infectious, toxicology, and paraneoplastic panel (e.g., anti-Hu, anti-VGKC), was conducted. Electroencephalography revealed diffuse generalized slowing without periodic complexes. The presence of distortion product otoacoustic emissions bilaterally was consistent with normal cochlear function, suggesting a retrocochlear origin for symptoms of hearing loss. In the meantime, the patient developed startle myoclonus. The brain magnetic resonance imaging demonstrated asymmetric cortical ribbon along with T2 FLAIR signal hyperintensities of bilateral basal ganglia. Later on, the protein 14-3-3 in the cerebrospinal fluid came back positive, which supported the diagnosis of CJD. Only three cases of CJD with deafness at onset have been published: one sporadic, associated with symptoms suggestive of polyneuropathy; and the other two familial, with the E200K mutation. One presented with symptoms of polyneuropathy and the other with typical features. CONCLUSION: This case illustrates the phenotypic variability of presentation of CJD in a patient with hearing loss as the initial manifestation. In patients with subacute bilateral hypoacusis and signs of dementia, the differential diagnosis of CJD must be taken into consideration.

Symptomatic palatal tremor of cortical origin due to stroke.

Palatal tremor (PT) is usually considered a movement disorder that presents with recurring rhythmic contractions of the soft palate. The inferior olive shows a characteristic pseudohypertrophy secondary to brainstem lesions in the triangle of Mollaret and Guillain that interrupt dentato-olivary and tegmental pathways. We report a 35-year-old man with a history of uncontrolled hypertension who presented to the emergency department with PT after a left middle cerebral artery ischemic stroke. The diagnostic work-up consisted of brain MRI, which revealed restricted diffusion over the left frontoparietal lobes without involvement of the brainstem. During hospitalization, the patient reported two brief episodes of soft palate and base-of-the-tongue high-frequency, low-amplitude and rhythmic tremor that resolved after intravenous administration of lorazepam. A 2-hour video electroencephalogram showed no abnormalities. After initiation of levetiracetam therapy, no further spells were reported by the patient. At the 2-month follow-up, the patient had had no episodes of stereotypical PT or upper limb tremors since discharge. This report provides further evidence of the central role of the cortex in the generation of PT. The cortical origin of symptomatic palatal tremor (SPT) should be considered in patients presenting after an acute ischemic insult, particularly if there is no evidence of a brainstem lesion. Potential causes of SPT of cortical origin include focal epilepsy and diaschisis.

Theoretical study on electronic spectra and interaction in [Au3]-L-[Au 3] (L = C6F6,Ag+) complexes.

The electronic structure and spectroscopic properties of [Au3(µ-C(OEt) = NC6H4CH3)3]n-(C6F6)m and [Au3(µ-C(2),N(3)-bzim)3]n-(Ag(+))m were studied at the B3LYP, PBE and TPSS levels. The interaction between the [Au3] cluster and L (C6F6, Ag(+)) was analyzed. Grimme's dispersion correction is used for those functionals. Weak π-interactions (Au-C6F6) were found to be the main contribution short-range stability in the models; while in the models with Ag(+), an ionic interaction is obtained. The absorption spectra of these models at the PBE level agree with the experimental spectra.

Diagnóstico molecular de tuberculosis extrapulmonar y sensibilidad a rifampicina con un método automatizado en tiempo real / Molecular diagnosis of extrapulmonary tuberculosis and sensitivity to rifampicin with an automated real-time method

Introducción. La tuberculosis continúa siendo un problema de salud pública mundial, y la forma extrapulmonar representa entre 10 y 20 % del total de casos en personas inmunocompetentes, porcentaje que se incrementa en los portadores del virus de la inmunodeficiencia humana (HIV). Su diagnóstico es difícil con los métodos convencionales por la naturaleza paucibacilar de las muestras. La prueba Xpert ® MTB/RIF ha significado un importante avance en la detección molecular de Mycobacterium tuberculosis y hoy se utiliza en una variedad de muestras clínicas obtenidas de sitios diferentes a las vías respiratorias. Objetivo. Determinar la utilidad de la prueba Xpert ® MTB/RIF en la detección de M. tuberculosis y la sensibilidad a la rifampicina en pacientes con sospecha de tuberculosis extrapulmonar, atendidos en el Hospital Universitario de San Vicente Fundación de Medellín entre 2013 y 2014. Materiales y métodos. Se hizo un estudio descriptivo de corte transversal retrospectivo y prospectivo en 372 muestras consecutivas provenientes de 301 pacientes con sospecha de tuberculosis extrapulmonar, las cuales se analizaron mediante baciloscopia, cultivo en medio de Ogawa-Kudoh y prueba molecular Xpert ® MTB/RIF. Resultados. De los pacientes estudiados, 182 eran hombres (60 %) y la condición de base más frecuentemente diagnosticada fue la infección por HIV. Al tomar como referencia el cultivo, la sensibilidad y la especificidad general de la prueba molecular fueron de 94 % (IC 95% 83-100) y 97 % (IC 95% 95-99), respectivamente, y para la baciloscopia, fueron de 38,71 % (IC 95% 19-57) y 100 % (IC 95% 99-100), respectivamente. En el análisis estratificado por muestras se encontraron sensibilidades mayores de 75 %; 37 aislamientos fueron sensibles a la rifampicina y uno fue resistente. Conclusión. La prueba Xpert ® MTB/RIF tuvo un buen desempeño en muestras de diferentes tejidos y líquidos, y constituye un avance significativo como apoyo para el diagnóstico de la tuberculosis extrapulmonar en términos de tiempo y porcentaje de positividad.

Introduction: Tuberculosis continues to be a global public health problem, the extrapulmonary form being estimated to occur in 10-20% of immunocompetent individuals, increasing in patients who are carriers of the human immunodeficiency virus (HIV); its diagnosis is difficult with conventional methods due to the paucibacillary nature of samples. The Xpert ® MTB/RIF test represents an important development in the molecular detection of Mycobacterium tuberculosis and has been used with a variety of non-respiratory clinical samples. Objective: To determine the effectiveness of Xpert ® MTB/RIF in the detection of M. tuberculosis and sensitivity to rifampicin in patients with suspected extrapulmonary tuberculosis attending Hospital Universitario de San Vicente Fundación in Medellín in 2013-2014. Materials and methods: This was a descriptive, cross-sectional ambispective study of 372 consecutive samples from 301 patients with suspected extrapulmonary tuberculosis, who were subjected to bacilloscopy, followed by culture in Ogawa Kudoh and the Xpert ® MTB/RIF molecular test. Results: The most frequent base diagnosis (60%) for the 182 patients was infection with HIV. Using the culture as reference, the sensitivity and general specificity of the molecular test was 94% (95% CI: 83-100) and 97% (95% CI: 95-99), respectively; for bacilloscopy it was 38.71(95% CI: 19-57) and 100% (95% CI: 99-100), respectively. Sensitivities higher than 75% were found in analyses stratified by samples. Thirty-seven of the isolates were sensitive and one resistant to rifampicin. Conclusion: Xpert ® MTB/RIF performed well in samples from different tissues and liquids, representing a significant advance in support of extrapulmonary tuberculosis diagnosis in terms of time and percentage positivity.

Varicella zoster virus ischemic optic neuropathy and subclinical temporal artery involvement.

OBJECTIVE: To demonstrate varicella zoster virus (VZV) infection in an asymptomatic extracranial (temporal) artery in a patient with ischemic optic neuropathy produced by VZV vasculopathy in whom the pathological changes were mistakenly identified as giant cell arteritis. DESIGN: Case report. SETTING: Teaching hospital, pathology and virology laboratory. PATIENT: An 80-year-old man with left ophthalmic distribution zoster who developed left ischemic optic neuropathy. INTERVENTION: An ipsilateral temporal artery biopsy revealed inflammation that was mistakenly identified as giant cell arteritis. The patient was initially treated with steroids but his condition did not improve. When the diagnosis of VZV vasculopathy was confirmed virologically and the patient was treated with intravenous acyclovir, his vision improved. RESULTS: Pathological and virological studies provided proof of VZV vasculopathy in the asymptomatic temporal artery. Varicella zoster virus antigen was abundant in arterial adventitia and scattered throughout the media. With intravenous antiviral therapy, the patient's vision improved. CONCLUSION: Although in previously studied patients who died of chronic VZV vasculopathy after 10 to 12 months, VZV antigen was present exclusively in the intima, collective analyses of chronic cases and the asymptomatic VZV-infected temporal artery suggest that virus enters arteries through the adventitia and spreads transmurally to the intima.