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https://www.readbyqxmd.com/read/29128164/grey-matter-volume-loss-is-associated-with-specific-clinical-motor-signs-in-huntington-s-disease
#1
Emma M Coppen, Milou Jacobs, Annette A van den Berg-Huysmans, Jeroen van der Grond, Raymund A C Roos
BACKGROUND: Motor disturbances are clinical hallmarks of Huntington's disease (HD) and involve chorea, dystonia, hypokinesia and visuomotor dysfunction. Investigating the association between specific motor signs and different regional volumes is important to understand the heterogeneity of HD. OBJECTIVE: To investigate the motor phenotype of HD and associations with subcortical and cortical grey matter volume loss. METHODS: Structural T1-weighted MRI scans of 79 HD patients and 30 healthy controls were used to calculate volumes of seven subcortical structures including the nucleus accumbens, hippocampus, thalamus, caudate nucleus, putamen, pallidum and amygdala...
November 2, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29102759/preclinical-profile-of-a-dopamine-d1-potentiator-suggests-therapeutic-utility-in-neurological-and-psychiatric-disorders
#2
Robert F Bruns, Stephen N Mitchell, Keith A Wafford, Alex J Harper, Elaine A Shanks, Guy Carter, Michael J O'Neill, Tracey K Murray, Brian J Eastwood, John M Schaus, James P Beck, Junliang Hao, Jeffrey M Witkin, Xia Li, Eyassu Chernet, Jason S Katner, Hong Wang, John W Ryder, Meghane E Masquelin, Linda K Thompson, Patrick L Love, Deanna L Maren, Julie F Falcone, Michelle M Menezes, Linli Zhang, Charles R Yang, Kjell A Svensson
DETQ, an allosteric potentiator of the dopamine D1 receptor, was tested in therapeutic models that were known to respond to D1 agonists. Because of a species difference in affinity for DETQ, all rodent experiments used transgenic mice expressing the human D1 receptor (hD1 mice). When given alone, DETQ reversed the locomotor depression caused by a low dose of reserpine. DETQ also acted synergistically with L-DOPA to reverse the strong hypokinesia seen with a higher dose of reserpine. These results indicate potential as both monotherapy and adjunct treatment in Parkinson's disease...
October 26, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29084192/transient-left-ventricular-dysfunction-due-to-coronary-spasm-after-spinal-anesthesia-with-bupivacaine-a-case-report
#3
Waldemar Elikowski, Małgorzata Małek-Elikowska, Marek Słomczyński, Karolina Horbacka, Jarosław Bartkowski, Bartosz Kalawski
Bupivacaine is a long-acting local anesthetic (LA) used for cutaneous infiltration, peripheral nerve blocks, epidural and spinal anesthesia. However, its application may result in cardiovascular complications such as: hypotension, bradycardia, cardiac arrest and toxic myocardial injury. The authors describe a 53-year-old male with a history of cigarette smoking, admitted for an elective inguinal hernia surgery. Before surgery, the patient received subarachnoid injection of bupivacaine (20 mg). After the operation, he developed transient hypotension...
October 23, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29075583/invasive-aspergillosis-involving-the-mediastinum-in-an-immunocompetent-patient-a-case-report
#4
Manesh Kumar Gangwani, Muhammad Aziz, Siraj Munir, Syed Ahsan Ali
We report a rare case of invasive pulmonary aspergillosis invading the mediastinum and the left atrium. A 38-year-old female was hospitalized for cough, shortness of breath and fever. She had a past medical history of tuberculosis. Computed tomography (CT) scans identified an ill-defined enhancing mediastinal soft tissue density mass encasing the heart and major vessels. The cardiac echocardiography showed global hypokinesia, low ejection fraction and a large echogenic density in the left atrium. The pathology from the bronchoscopic biopsy observed abundant fungal hyphae which were stained with periodic Acid-Schiff and Gomori's methenamine silver...
August 24, 2017: Curēus
https://www.readbyqxmd.com/read/29051824/pure-akinesia-with-gait-freezing-a-clinicopathologic-study
#5
Ahmad Elkouzi, Esther N Bit-Ivan, Rodger J Elble
BACKGROUND: Pure akinesia with gait freezing is a rare syndrome with few autopsied cases. Severe freezing of gait occurs in the absence of bradykinesia and rigidity. Most autopsies have revealed progressive supranuclear palsy. We report the clinical and postmortem findings of two patients with pure akinesia with gait freezing, provide video recordings of these patients, and review the literature describing similar cases. We also discuss bradykinesia, hypokinesia and akinesia in the context of this clinical syndrome...
2017: Journal of Clinical Movement Disorders
https://www.readbyqxmd.com/read/29039828/-clinical-laboratory-and-instrumental-criteria-for-myocarditis-established-in-comparison-with-myocardial-biopsy-a-non-invasive-diagnostic-algorithm
#6
O V Blagova, Yu V Osipova, A V Nedostup, E A Kogan, V A Sulimov
AIM: To determine the diagnostic value of different clinical, laboratory, and instrumental signs in the diagnosis of myocarditis in patients with the picture of idiopathic arrhythmias, dilated cardiomyopathy (DCM) and in a comparison group when comparing with myocardial morphological examination. SUBJECTS AND METHODS: A study group included 100 patients (35 women; mean age, 44.7±12.5 years) with idiopathic arrhythmias (n=20) and DCM as a syndrome (n=100). All underwent myocardial morphological examination: endomyocardial biopsy (EMB) (n=71), intraoperative biopsy (n=13), study of the explanted heart (n=6), and autopsy (n=11)...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/29028874/impaired-self-awareness-of-motor-disturbances-in-parkinson-s-disease
#7
Franziska Maier, George P Prigatano
Traditionally, anosognosia for cognitive or motor impairments in patients with Parkinson's disease (PD) was viewed as unlikely unless the patient was demented. More recent research has suggested that a portion of non-demented PD patients (30%-50%) in fact have impaired subjective awareness (ISA) of their motor impairments (ISAm). This empirical finding has implications for the clinical neuropsychological examination of PD patients and raises theoretical questions relevant to the broader study of anosognosia seen in other patient groups...
November 1, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28975307/effect-of-lorazepam-with-haloperidol-vs-haloperidol-alone-on-agitated-delirium-in-patients-with-advanced-cancer-receiving-palliative-care-a-randomized-clinical-trial
#8
RANDOMIZED CONTROLLED TRIAL
David Hui, Susan Frisbee-Hume, Annie Wilson, Seyedeh S Dibaj, Thuc Nguyen, Maxine De La Cruz, Paul Walker, Donna S Zhukovsky, Marvin Delgado-Guay, Marieberta Vidal, Daniel Epner, Akhila Reddy, Kimerson Tanco, Janet Williams, Stacy Hall, Diane Liu, Kenneth Hess, Sapna Amin, William Breitbart, Eduardo Bruera
Importance: The use of benzodiazepines to control agitation in delirium in the last days of life is controversial. Objective: To compare the effect of lorazepam vs placebo as an adjuvant to haloperidol for persistent agitation in patients with delirium in the setting of advanced cancer. Design, Setting, and Participants: Single-center, double-blind, parallel-group, randomized clinical trial conducted at an acute palliative care unit at MD Anderson Cancer Center, Texas, enrolling 93 patients with advanced cancer and agitated delirium despite scheduled haloperidol from February 11, 2014, to June 30, 2016, with data collection completed in October 2016...
September 19, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28973176/association-between-poor-cognitive-functioning-and-risk-of-incident-parkinsonism-the-rotterdam-study
#9
Sirwan K L Darweesh, Frank J Wolters, Ronald B Postuma, Bruno H Stricker, Albert Hofman, Peter J Koudstaal, M Kamran Ikram, M Arfan Ikram
Importance: Cognitive dysfunction is a common feature among patients with parkinsonism, including Parkinson disease (PD). However, there is a scarcity of data on cognitive functioning before parkinsonism diagnosis, a stage at which patients may still respond to putative disease-modifying interventions. Objective: To assess whether poor cognitive functioning is associated with an increased risk of parkinsonism. Design, Setting, and Participants: Between January 8, 2002, and December 14, 2008, baseline cognitive function was assessed in 7386 participants of the Rotterdam Study who were free of parkinsonism and dementia...
September 25, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28949038/parkinsonism-without-dopamine-neuron-degeneration-in-aged-l-dopa-responsive-dystonia-knockin-mice
#10
Samuel J Rose, Porter Harrast, Christine Donsante, Xueliang Fan, Valerie Joers, Malú G Tansey, H A Jinnah, Ellen J Hess
BACKGROUND: Recent neuroimaging studies implicate nigrostriatal degeneration as a critical factor in producing late-onset parkinsonism in patients with l-dopa-responsive dystonia-causing mutations. However, postmortem anatomical studies do not reveal neurodegeneration in l-dopa-responsive dystonia patients. These contrasting findings make it unclear how parkinsonism develops in l-dopa-responsive dystonia mutation carriers. METHODS: We prospectively assessed motor dysfunction, responses to dopaminergic challenge, and dopamine neuron degeneration with aging in a validated knockin mouse model bearing a l-dopa-responsive dystonia-causing mutation found in humans...
September 26, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28936761/biomarkers-for-parkinson-s-disease-recent-advancement
#11
REVIEW
Sharvari Lotankar, Kedar S Prabhavalkar, Lokesh K Bhatt
As a multi-factorial degenerative disease, Parkinson's disease (PD) leads to tremor, gait rigidity, and hypokinesia, thus hampering normal living. As this disease is usually detected in the later stages when neurons have degenerated completely, cure is on hold, ultimately leading to death due to the lack of early diagnostic techniques. Thus, biomarkers are required to detect the disease in the early stages when prevention is possible. Various biomarkers providing early diagnosis of the disease include those of imaging, cerebrospinal fluid, oxidative stress, neuroprotection, and inflammation...
October 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28922312/maximum-step-length-test-performance-in-people-with-parkinson-disease-a-cross-sectional-study
#12
Ryan P Duncan, Marie E McNeely, Gammon M Earhart
BACKGROUND AND PURPOSE: The Maximum Step Length Test (MSLT), a measure of one's capacity to produce a large step, has been studied in older adults, but not in people with Parkinson disease (PD). We characterized performance and construct validity of the MSLT in PD. METHODS: Forty participants (mean age: 65.12 ± 8.20 years; 45% female) with idiopathic PD completed the MSLT while "OFF" and "ON" anti-PD medication. Construct validity was investigated by examining relationships between MSLT and measures of motor performance...
October 2017: Journal of Neurologic Physical Therapy: JNPT
https://www.readbyqxmd.com/read/28916123/reverse-takotsubo-cardiomyopathy-and-cardiogenic-shock-associated-with-methamphetamine-consumption
#13
Omar Chehab, Adam Ioannou, Akshat Sawhney, Alexandra Rice, Simon Dubrey
BACKGROUND: Reverse Takotsubo cardiomyopathy is characterized by transient myocardial hypokinesia affecting predominantly the basal myocardial wall. It is a rare variant of Takotsubo cardiomyopathy affecting younger patients. CASE REPORT: We report a case of a young man who having consumed methamphetamines presented with cardiogenic shock and severe left ventricular systolic dysfunction, affecting predominantly the basal segments with sparing of the apex. After inotropic support, the left ventricular ejection fraction improved...
November 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28901595/movement-disorders-in-genetically-confirmed-mitochondrial-disease-and-the-putative-role-of-the-cerebellum
#14
Sebastian R Schreglmann, Franz Riederer, Marian Galovic, Christos Ganos, Georg Kägi, Daniel Waldvogel, Zane Jaunmuktane, Andre Schaller, Ute Hidding, Ernst Krasemann, Lars Michels, Christian R Baumann, Kailash Bhatia, Hans H Jung
BACKGROUND: Mitochondrial disease can present as a movement disorder. Data on this entity's epidemiology, genetics, and underlying pathophysiology, however, is scarce. OBJECTIVE: The objective of this study was to describe the clinical, genetic, and volumetric imaging data from patients with mitochondrial disease who presented with movement disorders. METHODS: In this retrospective analysis of all genetically confirmed mitochondrial disease cases from three centers (n = 50), the prevalence and clinical presentation of video-documented movement disorders was assessed...
September 13, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28868030/association-of-posterior-reversible-encephalopathy-syndrome-and-transient-apical-ballooning-syndrome-takotsubo-first-case-report-of-a-man-and-review-of-the-literature
#15
Stephan Grimaldi, Emilie Doche, Caroline Rey, Nadia Laksiri, Salah Boussen, Jacques Quilici, Emmanuelle Robinet, Fabien Devemy, Jean Pelletier
INTRODUCTION: An association of posterior reversible encephalopathy syndrome (PRES) and takotsubo is rare. We present the first case of a male patient. CASE REPORT: A 69-year-old man presented to the hospital in a persistent comatose state following a generalized tonic-clonic seizure with high blood pressure. The electrocardiogram revealed transient left bundle branch block. Troponin and BNP were elevated. Cardiac ultrasound showed large apical akinesia with altered left ventricular ejection fraction, and the left ventriculogram showed characteristic regional wall motion abnormalities involving the mid and apical segments...
May 2017: Case Reports in Neurology
https://www.readbyqxmd.com/read/28836706/the-utility-of-serial-echocardiograms-for-organ-procurement-in-brain-death
#16
Chiara Lazzeri, Cristiana Guetti, Maria L Migliaccio, Marco Ciapetti, Adriano Peris
Heart transplantation rates are limited by a shortage of donor hearts, and left ventricular dysfunction is an important cause. We hypothesized that an early echocardiographic evaluation in severe brain injury (performed within 12 hours from ICU admission) could allow the detection of potentially reversible left ventricular (LV) abnormalities and thus the initiation of tailored treatment whose effects could be assessed at a second echocardiogram performed when brain death develops. We assessed this hypothesis in 49 patients with severe brain injury who were potential heart donors...
August 24, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28818560/rotigotine-for-nocturnal-hypokinesia-in-parkinson-s-disease-quantitative-analysis-of-efficacy-from-a-randomized-placebo-controlled-trial-using-an-axial-inertial-sensor
#17
Roongroj Bhidayasiri, Jirada Sringean, Suchapit Chaiwong, Chanawat Anan, Nuntiwat Penkeaw, Amarinee Leaknok, Kamolwan Boonpang, Karn Saksornchai, Watchara Rattanachaisit, Chusak Thanawattano, Priya Jagota
BACKGROUND: Nocturnal hypokinesia is a common symptom in Parkinson's disease (PD), negatively affecting quality of life of both patients and caregivers. However, evidence-based treatment strategies are limited. OBJECTIVE: To evaluate the efficacy of rotigotine transdermal patch, using a wearable sensor, in the management of nocturnal immobility. METHODS: 34 PD subjects with nocturnal immobility were randomized to receive rotigotine transdermal patch (mean ± SD of 10...
August 9, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28811941/seizure-associated-takotsubo-syndrome-a-rare-combination
#18
Htay Htay Kyi, Nour Aljariri Alhesan, Sunil Upadhaya, Samer Al Hadidi
Takotsubo cardiomyopathy (TC) is increasingly recognized in neurocritical care population especially in postmenopausal females. We are presenting a 61-year-old African American female with past medical history of epilepsy, bipolar disorder, and hypertension who presented with multiple episodes of seizures due to noncompliance with antiepileptic medications. She was on telemetry which showed ST alarm. Electrocardiogram (ECG) was ordered and showed ST elevation in anterolateral leads and troponins were positive...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28776362/acute-heart-failure-and-rhabdomyolysis-a-clue-for-the-diagnosis-of-polymyositis-with-cardiac-involvement
#19
P Pinto-Lopes, L Carneiro-Leão, R Morais, J Pinheiro, A Vieira Lopes, P Bettencourt
Polymyositis is an idiopathic inflammatory myopathy, characterized by proximal muscle weakness and sometimes extramuscular manifestations. We report the case of a 51-year-old male, with history of complete heart block, which required pacemaker implantation, and subsequently heart failure, presenting to the emergency department with worsening of dyspnea and peripheral edema. He was admitted to the Internal Medicine ward with acute heart failure and started on diuretic therapy. During hospitalization, he was discovered to have marked rhabdomyolysis...
August 3, 2017: Reumatismo
https://www.readbyqxmd.com/read/28755239/prism-adaptation-speeds-reach-initiation-in-the-direction-of-the-prism-after-effect
#20
Christopher L Striemer, Carley A Borza
Damage to the temporal-parietal cortex in the right hemisphere often leads to spatial neglect-a disorder in which patients are unable to attend to sensory input from their contralesional (left) side. Neglect has been associated with both attentional and premotor deficits. That is, in addition to having difficulty with attending to the left side, patients are often slower to initiate leftward vs. rightward movements (i.e., directional hypokinesia). Previous research has indicated that a brief period of adaptation to rightward shifting prisms can reduce symptoms of neglect by adjusting the patient's movements leftward, toward the neglected field...
July 28, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
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