Notes

Cassane diterpenoids in the seed products involving Caesalpinia bonduc along with their n . o . production as well as α-glucosidase inhibitory actions.
The role of the adaptive immune system in mediating COVID-19 is largely unknown. Therefore, it is difficult to predict the clinical course in patients with common variable immunodeficiency (CVID), a disease characterized by dysfunctional lymphocytes and impaired antibody production. We report a case of SARS-CoV-2 infection presenting as isolated neurological symptoms in a patient with CVID. The patient subsequently improved following steroids, intravenous immunoglobulin, and convalescent plasma (CP). The latter has been shown to be safe and efficacious in treating COVID-19 in patients with primary immunodeficiency. Recent data suggest that the mechanism of CNS injury in COVID-19 may be due to immunological dysregulation rather than direct viral-mediated injury. This case exemplifies the complex interaction between the brain, the immune system, and the SARS-CoV-2 virus.
Ischemic stroke (IS) is a common cause of hospitalization which carries a significant economic burden and leads to high rates of death and disability. Readmission in the first 30 days after hospitalization is associated with increased healthcare costs and higher risk of death and disability. Efforts to decrease the number of patients returning to the hospital after IS may improve quality and cost of care.

Improving care transitions to reduce readmissions is amenable to quality improvement (QI) initiatives. A multi-component QI intervention directed at IS patients being discharged to home from a stroke unit at an academic comprehensive stroke center using IS diagnosis-driven home care referrals, improved post-discharge telephone calls, and timely completion of discharge summaries was developed. The improvement project was implemented on July 1, 2019, and evaluated for the 6 months following initiation in comparison to the same 6-month period pre-intervention in 2018.

Following implementation, a statistically significant decrease in 30-day all-cause same-hospital readmission rates from 7.4% to 2.8% (
= .031,
= 1.61) in the project population and from 6.6% to 3% (
= .010,
= 1.43) in the overall IS population was observed. Improvement was seen in all process measures as well as in patient satisfaction scores.

An evidence-based bundled process improvement intervention for IS patients discharged to home was associated with decreased hospital readmission rates following IS.
An evidence-based bundled process improvement intervention for IS patients discharged to home was associated with decreased hospital readmission rates following IS.External iliac vein stenosis related to cycling has rarely been reported as a cause of deep vein thrombosis. Ischemic stroke occurring in this condition due to paradoxical embolism across a preexisting patent foramen ovale (PFO) has yet to be reported. Here we report a case of embolic ischemic strokes in a young, avid cyclist with no prior known vascular risk factors. A thorough cerebrovascular workup revealed a right-to-left shunt on transesophageal echocardiogram that prompted venous thrombosis evaluation. Pelvic MR venogram demonstrated a 3.5 cm high-grade stenosis of the right external iliac vein, concerning for possible prior thrombotic disease. His strokes were deemed most likely a result of paradoxical emboli originating in the pelvis at the site of right external iliac vein stenosis. The patient ultimately opted for PFO closure for secondary stroke prevention, as he wished to continue daily cycling. This case highlights the importance of neurohospitalists considering iliac vein stenosis as a potential cause of embolic stroke of undetermined source, especially in young patients who are avid cyclists, as part of a thorough vascular workup.Primary Sjogren's Syndrome (PSS) is an autoimmune exocrinopathy, with protean manifestations affecting multiple organ systems. Neurological manifestations are documented in about 20% of PSS cohorts in literature, with peripheral manifestations being commoner. Central nervous system manifestations of PSS (CNS-SS) encompass ischemic strokes, demyelinating lesions, aseptic meningitis, encephalitis, cerebellar ataxia, cognitive impairment and movement disorders. Ischemic stroke as presenting manifestation of PSS is extremely rare. We hereby describe a 50-year-old male, who presented for evaluation of 2 episodes of discrete focal neurological deficits over a duration of 6 weeks, with neuro-imaging findings revealing evidence of acute-subacute bihemispheric infarcts. Further evaluation revealed evidence of strongly positive anti phospholipid antibodies (aPL), indirect immunofluorescence antinuclear antibody (IIF-ANA), anti Sjögren's syndrome-A (SS-A/Ro) and anti-Ribonuclear protein (RNP) antibodies, with histopathological evidence of periductal and periacinar lymphocytic infiltration as well as acinar atrophy and interstitial fibrosis of minor salivary glands on lip biopsy, consistent with a diagnosis of Sjögren's syndrome, constituting a diagnosis of Antiphospholipid syndrome (APS) associated with PSS.Porphyria is a metabolic disorder caused by a mutation in the heme biosynthetic pathway, with vague symptomatology and rare prevalence. A triad of hyponatremia, intermittent seizures, and abdominal pain should raise suspicion for porphyria. The diagnosis is based on increased blood porphobilinogen levels and genetic mutations. Treatment involves Dextrose-10 administration followed by hematin infusions as soon as possible. A maintenance dose of hematin is required in some cases. Here, we report a delayed diagnosis of acute intermittent porphyria (AIP) in an 18-year-old female, who first presented with severe anemia attributed to iron deficiency from menstrual blood loss. After discharge, she was readmitted with bilateral lower extremity and abdominal pain, hyponatremia, and seizure attributed to polypharmacy. During this second hospitalization, she was transferred to our hospital complaining of chest pain, shortness of breath, markedly decreased weakness, dysphagia, and hallucinations. After an extensive workup, she was diagnosed with AIP, and Dextrose-10 and hemin infusion were started. Our patient was found to have a missense mutation in the Hydroxymethylbilane synthase gene. She recovered after an extended ICU stay of 45 days and was discharged with a moderate improvement of weakness. Early diagnosis is necessary to prevent severe manifestations and long-term sequelae, such as axonal neuropathy, which occurred in the presented case.Varicella-zoster virus (VZV) infection is notorious for central nervous system involvement, the spectrum of which encompasses vasculopathic manifestations as well. Central nervous system VZV vasculopathy (CVV) most commonly manifests as ischemic strokes or TIA, even though other less common modes of presentation are also well documented in the literature. The pathophysiological mechanism is primarily attributed to active virus infection in the blood vessels secondary to decline in varicella-specific cell-mediated immunity. More than one-third of those with CVV do not have preceding skin lesions of zoster. Etomoxir Hence, a high index of clinical suspicion should be entertained in the appropriate clinical scenario. We hereby describe the case of a 40-year-old lady with systemic lupus erythematosus on long-term oral steroids who presented with acute ischemic stroke involving the right PCA territory, with asymptomatic chronic infarcts in the left MCA. Further evaluation revealed concentric vessel enhancement involving right PCA on high-resolution MR vessel wall imaging with the "Moya-Moya" phenomenon on the left supraclinoid ICA/MCA segment. CSF showed mononuclear pleocytosis with a hemorrhagic component, along with positive VZV DNA PCR. A diagnosis of "CNS VZV Vasculopathy sine herpete" was made and the patient was initiated on appropriate management.
Morbidity and Mortality (M&M) conferences are widespread but vary in goals and methodology. Some focus on clinical enigmas while an increasing number utilize quality improvement (QI) tools to effect systems change. Little is known about the current state of US Neurology M&Ms.

We surveyed 56 US academic neurology departments regarding their M&Ms to understand the use of QI tools and assess variability. Additionally, we reviewed the evolution of M&Ms in our department.

The survey was completed by 44 (80%) departments; 68% reported quarterly frequency with 61% discussing 1-2 safety events per conference. The number of written guidelines or protocols resulting from M&Ms in 2years varied from 0 (14% of departments), 1-2 (45%), to >5 (5%). Institutional culture regarding quality and safety and conference timing were cited by 71% as important in improving participation. In our own department, the M&M format changed in 2014 based on a sentinel patient event combined with improving safety culture across the hospital neurology M&Ms transformed into thematic quarterly conferences utilizing QI tools. Attendance increased 3-fold, and in 7years, we have generated 26 guidelines or pathways with corresponding decision-support tools, among other improvement efforts, resulting in specific systems changes. Based on survey results and our experience, suggested M&M "best practices" include the use of just culture, peer review protection, safety event analysis with QI methodology, trainee involvement, and logistical optimization.

Structured M&Ms incorporating suggested QI-informed "best practices" can be highly effective in driving system change within neurology.
Structured M&Ms incorporating suggested QI-informed "best practices" can be highly effective in driving system change within neurology.Gains in life expectancy have recently slowed and mortality inequalities have increased. This paper examines whether trends in health observed at ages 55 to 89 mirror those trends in mortality, which may serve as an early indicator for the future evolution of mortality. We found that many health outcomes have worsened from 1992 to 2016, especially at ages below 70, and that differentials in health between low and high education groups have increased among the more recent cohorts. Overall the findings cast a pessimistic light on the future evolution of mortality rates and mortality inequalities.
To investigate the optimal temperature of hypothermia treatment in rats with cardiac arrest caused by ventricular fibrillation (VF) after the return of spontaneous circulation (ROSC).

A total of forty-eight male Sprague-Dawley rats were induced by VF through the guidewire with a maximum of 5 mA current and untreated for 8 min. Cardiopulmonary resuscitation (CPR) was performed for 8 min followed by defibrillation (DF). Resuscitated rats were then randomized into the normothermia (37°C) group, milder (35°C) group, mild (33°C) group, or moderate (28°C) group. Hypothermia was immediately induced with surface cooling. The target temperature was maintained for 4 h before rewarming to 37 ± 0.5°C. Moreover, at the end of the 4 h, a rat in each group was randomly selected to be sacrificed for the cerebral cortex electron microscopy observation (
= 1). The other resuscitated animals were observed for up to 72 h after ROSC (
= 7). Left ventricular ejection fraction (LVEF) and left ventricular end diastolic volume (LVEDV) were measured.
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