9 results on '"Alan Stein"'
Search Results
2. Impact of Intense Research Interventions on Scholarly Output by Neurosurgery Residents and Medical Students
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Chirag D. Gandhi, Jordan Vanderhooft, Fawaz Al-Mufti, Meic H. Schmidt, Zafar Karimov, Chad D Cole, Christian A. Bowers, and Alan Stein
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Medical education ,medicine.medical_specialty ,business.industry ,Psychological intervention ,medicine ,Surgery ,Neurology (clinical) ,Neurosurgery ,business ,Students medical - Published
- 2020
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3. Pediatric Multi-System Inflammatory Syndrome With Fatal Cerebral Edema in a Patient With COVID-19
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Fawaz Al-Mufti, Carrie R. Muh, Jared M. Pisapia, Alan Stein, Rolla Nuoman, Philip Overby, George M. Kleinman, and Michael Kim
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Abdominal pain ,Section on Pediatric Neurological Surgery ,business.industry ,AcademicSubjects/MED00930 ,Fulminant ,medicine.disease ,Rash ,Cerebral edema ,CNS ACCEPTED ABSTRACTS ,Anesthesia ,medicine ,Vomiting ,Surgery ,Kawasaki disease ,Neurology (clinical) ,Headaches ,medicine.symptom ,business ,Intracranial pressure - Abstract
INTRODUCTION There are increasing reports of a pediatric multi-system inflammatory syndrome associated with coronavirus disease 2019 (COVID-19) that presents with varying clinical features, but includes features of Kawasaki disease or toxic shock syndrome. Symptoms include fever, rash, abdominal pain, vomiting, and diarrhea. Many patients present without any respiratory symptoms and testing for SARS-CoV-2 is often negative. METHODS A retrospective chart review was performed. RESULTS A 7-year-old previously healthy male presented with 3 days of fevers up to 102.4F, headaches, abdominal pain, and intractable vomiting. Both parents had tested positive for SARS-CoV-2 four weeks prior. Nasopharyngeal swab tested positive for SARS-CoV-2 RNA. Echocardiogram was normal. CT venogram of his head was negative for any pathology. He developed severe neck pain and persistent headache during his hospitalization. Soon after receiving hydroxychloroquine, he developed a facial rash and altered mental status with episodes of aphasia, agitation, and pinpoint pupils. He then became unresponsive with left gaze deviation. A non-contrast head CT and CT angiography were negative. He was given levetiracetam and cefazolin and transferred to the pediatric intensive care unit. An electroencephalogram (EEG) showed no epileptiform activity. Over the following 7 hours, the EEG demonstrated left frontotemporal slowing, which progressed into a loss of fast activity over the right hemisphere with increased delta activity in the left hemisphere, then abruptly changed to generalized voltage attenuation.He rapidly lost brainstem reflexes, developing fixed and dilated pupils. Repeat CT scan revealed diffuse cerebral edema with loss of gray-white differentiation. Lab results then were consistent with severe inflammation. An intracranial pressure monitor revealed pressures greater than 76 mmHg. His exam soon became consistent with brain death. Pathologic evaluation showed diffuse cerebral edema with perivascular mononuclear infiltrates. CONCLUSION The cause of this pediatric multi-system inflammatory syndrome is unclear and the mechanism by which SARS-CoV-2 affects the nervous system is unknown. Pediatric patients with COVID-19 and neurologic symptoms should be closely monitored as they can rapidly decline due to fulminant cerebral edema.
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- 2020
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4. Maternal and child psychological outcomes of HIV disclosure to young children in rural South Africa
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Joanie Mitchell, Adriane Xavier Arteche, Tamsen J. Rochat, Ruth M. Bland, and Alan Stein
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Adult ,Male ,medicine.medical_specialty ,Immunology ,Population ,Psychological intervention ,HIV Infections ,CBCL ,Rural Health ,Truth Disclosure ,law.invention ,South Africa ,Young Adult ,Acquired immunodeficiency syndrome (AIDS) ,Randomized controlled trial ,law ,Surveys and Questionnaires ,Intervention (counseling) ,Adaptation, Psychological ,Humans ,Immunology and Allergy ,Medicine ,Child ,education ,Psychiatry ,education.field_of_study ,business.industry ,Middle Aged ,medicine.disease ,Mental health ,Mother-Child Relations ,Infectious Diseases ,Child, Preschool ,Female ,General Health Questionnaire ,business ,Stress, Psychological - Abstract
Objectives: Increasingly, HIV-infected parents are surviving to nurture their children. Parental HIV disclosure is beneficial, but disclosure rates to younger children remain low. Previously, we demonstrated that the ‘Amagugu’ intervention increased disclosure to young children; however, effects on psychological outcomes have not been examined in detail. This study investigates the impact of the intervention on the maternal and child psychological outcomes. Method: This pre-post evaluation design enrolled 281 HIV-infected women and their HIV-uninfected children (6‐10 years) at the Africa Centre for Health and Population Studies, in rural South Africa. The intervention included six home-based counselling sessions delivered by lay-counsellors. Psychological outcomes included maternal psychological functioning (General Health Questionnaire, GHQ12 using 0,1,2,3 scoring); parenting stress (Parenting Stress Index, PSI36); and child emotional and behavioural functioning (Child Behaviour Checklist, CBCL). Results: The proportions of mothers with psychological distress reduced after intervention: GHQ threshold at least 12 (from 41.3 to 24.9%, P
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- 2015
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5. Maternal HIV disclosure to young HIV-uninfected children
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Ruth M. Bland, Adriane Xavier Arteche, Alan Stein, Tamsen J. Rochat, and Ntombizodumo B. Mkwanazi
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Adult ,Male ,medicine.medical_specialty ,Immunology ,Population ,Psychological intervention ,HIV Infections ,Disclosure ,South Africa ,Young Adult ,Acquired immunodeficiency syndrome (AIDS) ,Pregnancy ,Intervention (counseling) ,medicine ,Humans ,Immunology and Allergy ,Child ,Psychiatry ,education ,education.field_of_study ,business.industry ,Odds ratio ,Middle Aged ,medicine.disease ,Mental health ,Mother-Child Relations ,Infectious Diseases ,Female ,Maternal death ,General Health Questionnaire ,business - Abstract
Objectives: Sub-Saharan Africa has large populations of HIV-infected parents who need support to raise their HIV-uninfected children. This research evaluates the ‘Amagugu Intervention’ aimed at supporting mothers to disclose their own HIV diagnosis to their HIV-uninfected children. Design: Uncontrolled pre and post-intervention evaluation. Setting: Africa Centre for Health and Population Studies, South Africa. Participants: Two hundred and eighty-one HIV-infected women and their HIV-uninfected children aged 6–10 years. Intervention: This lay counsellor-led intervention included six sessions conducted with mothers at home, providing printed materials and child-friendly activities to support disclosure of their diagnosis. Main outcome measure: The primary outcome was disclosure to the child (full, partial, none). The secondary outcomes included maternal mental health (General Health Questionnaire) and child mental health (Child Behaviour Checklist). Results: One hundred and seventy-one (60%) women ‘fully’ disclosed and 110 (40%) women ‘partially’ disclosed their HIV status to their child. Women who perceived their health to be excellent were less likely to ‘fully’ disclose compared to those considering their health to be poorer [adjusted odds ratio 0.48 (0.28–0.95), P ¼ 0.11]. Compared to those not in a current partnership, those with a current partner were almost three times more likely to ‘fully’ disclose [adjusted odds ratio 2.92 (1.33–6.40),P ¼ 0.008]. Mothers reported that most children reacted calmly to ‘full’ (79%) or ‘partial’ disclosure (83%). Compared to ‘partial’ disclosure, ‘full’ disclosure was associated with more children asking questions about maternal death (18 versus 8%). Conclusions: This intervention is acceptable in resource-limited settings and shows promise. Further research using a controlled design is needed to test this intervention. 2014 Wolters Kluwer Health | Lippincott Williams & Wilkins AIDS 2014, 28 (Suppl 3):S331–S341
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- 2014
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6. Differential Effect of Intrauterine Growth Restriction on Childhood Neurodevelopment: A Systematic Review
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José Villar, Mina Fazel, Elizabeth Murray, Stephen Kennedy, Alan Stein, and Michelle Fernandes
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Sleep Wake Disorders ,congenital, hereditary, and neonatal diseases and abnormalities ,Pediatrics ,medicine.medical_specialty ,Developmental Disabilities ,Vision Disorders ,MEDLINE ,Intrauterine growth restriction ,Gestational Age ,Child Behavior Disorders ,PsycINFO ,CINAHL ,Pregnancy ,Risk Factors ,Humans ,Medicine ,Child ,Hearing Disorders ,reproductive and urinary physiology ,Language Disorders ,Fetus ,Fetal Growth Retardation ,Obstetrics ,business.industry ,Infant, Newborn ,Obstetrics and Gynecology ,Infant ,Cognition ,medicine.disease ,female genital diseases and pregnancy complications ,Motor Skills Disorders ,In utero ,Child, Preschool ,embryonic structures ,Small for gestational age ,Gestation ,Female ,Cognition Disorders ,business - Abstract
Background Neurodevelopmental disorders are increasingly believed to originate from intrauterine growth restriction (IUGR). Current reviews exploring the neurodevelopmental effects of IUGR, however, are mostly based on birthweight, an inadequate proxy. Objective We aimed to examine the association between IUGR documented in utero, and neurodevelopmental outcomes during childhood. Search strategy Medline, CINAHL, PsycInfo and Scopus were searched for relevant studies published after 1970. Selection criteria The analysis included studies that identified IUGR in utero, with follow-up assessments between 1 month and 12 years of age. Data collection and analysis Data was extracted for cognitive, behavioural, language, motor, hearing, vision or sleep outcomes. Studies were summarised separately for children born at
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- 2016
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7. Prevalence of HIV-1 drug resistance in antiretroviral-naive patients: a prospective study
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Susan Hunt, Kurt Hertogs, Brendan Larder, Melanie Thompson, Stuart Bloor, Stephen Brown, Margriet Van Houtte, Marcus A. Conant, Patricia Schel, Richard Stryker, Alan Stein, Werner Verbiest, Timothy M. Alcorn, Calvin J. Cohen, Remi Van Den Broeck, Michael Sension, and Keith Henry
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Adult ,Male ,medicine.medical_specialty ,Immunology ,HIV Infections ,Drug resistance ,HIV Protease ,Acquired immunodeficiency syndrome (AIDS) ,Internal medicine ,Immunopathology ,Prevalence ,medicine ,Humans ,Immunology and Allergy ,Prospective Studies ,Prospective cohort study ,Sida ,biology ,business.industry ,Drug Resistance, Microbial ,Middle Aged ,Viral Load ,biology.organism_classification ,medicine.disease ,HIV Reverse Transcriptase ,United States ,Infectious Diseases ,Mutation ,Lentivirus ,HIV-1 ,RNA, Viral ,Female ,Viral disease ,business ,Viral load - Published
- 2001
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8. Computer Assisted Analysis of Tomographic Images of the Brain
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Martin Reivich, Alan Stein, Peter D. Karp, Taylor Adair, and Ruzena Bajcsy
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medicine.diagnostic_test ,business.industry ,Brain atlas ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,Computed tomography ,Technical note ,eye diseases ,medicine.anatomical_structure ,Positron emission tomography ,Atlas (anatomy) ,medicine ,Radiology, Nuclear Medicine and imaging ,Computer vision ,sense organs ,Artificial intelligence ,business - Abstract
A computer system for the analysis of computed tomography and positron emission tomography scans of the brain is described. The system, called TOAP (Tomographic Overlay and Analysis Program), permits the registration of user specified slices from a digital brain atlas with the tomographic images. Regions of interest can then be defined with respect to the atlas. The system thus affords an objective and reproducible means for the analysis of tomographic images.
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- 1981
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9. Ischemic lesions of the occipital cortex and optic radiations: Positron emission tomography
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Martin Reivich, Alan Stein, Michael Kushner, Alan C. Rosenquist, Abass Alavi, Allan M. Burke, Norman J. Schatz, R. Dann, Peter J. Savino, Walter H. Cobbs, and Thomas M. Bosley
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Adult ,Male ,genetic structures ,Thalamus ,Vision Disorders ,Deoxyglucose ,Visual system ,Homonymous Hemianopias ,Fluorodeoxyglucose F18 ,Cortex (anatomy) ,medicine ,Humans ,Visual Pathways ,Aged ,Visual Cortex ,medicine.diagnostic_test ,business.industry ,Middle Aged ,eye diseases ,Visual field ,Glucose ,medicine.anatomical_structure ,Ischemic Attack, Transient ,Positron emission tomography ,Female ,Occipital Lobe ,Neurology (clinical) ,Striate cortex ,Tomography, X-Ray Computed ,Nuclear medicine ,business ,Occipital lobe ,Tomography, Emission-Computed - Abstract
We used 18-F-fluoro-2-deoxyglucose positron emission tomography (PET) and computed tomography (CT) to study eight patients with homonymous hemianopias or quadrantanopias due to ischemic lesions of the visual pathways. Four patients with ischemic damage to all or part of the occipital lobe had decreased glucose metabolism in the affected region. Three patients with ischemic damage limited to the optic radiations had decreased glucose metabolism in the portion of striate cortex appropriate for the visual field defect. Changes in glucose metabolism frequently occurred in the undamaged ipsilateral thalamus and visual association areas.
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- 1985
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