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Transcranial sonography

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https://www.readbyqxmd.com/read/28928674/the-gly-16-allele-of-the-g16r-single-nucleotide-polymorphism-in-the-%C3%AE-2-adrenergic-receptor-gene-augments-the-glycemic-response-to-adrenaline-in-humans
#1
Kim Z Rokamp, Jonatan M Staalsø, Morten Zaar, Peter Rasmussen, Lonnie G Petersen, Rikke V Nielsen, Niels H Secher, Niels V Olsen, Henning B Nielsen
Cerebral non-oxidative carbohydrate consumption may be driven by a β2-adrenergic mechanism. This study tested whether the 46G > A (G16R) single nucleotide polymorphism of the β2-adrenergic receptor gene (ADRB2) influences the metabolic and cerebrovascular responses to administration of adrenaline. Forty healthy Caucasian men were included from a group of genotyped individuals. Cardio- and cerebrovascular variables at baseline and during a 60-min adrenaline infusion (0.06 μg kg(-1) min(-1)) were measured by Model flow, near-infrared spectroscopy and transcranial Doppler sonography...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28870587/the-value-of-midbrain-morphology-in-predicting-prognosis-in-chronic-disorders-of-consciousness-a-preliminary-ultrasound-study
#2
Antonino Chillura, Antonino Naro, Katia Micchia, Alessia Bramanti, Placido Bramanti, Rocco Salvatore Calabrò
Transcranial sonography (TCS) of the brainstem is currently used to support the clinical diagnosis of movement disorders. The aim of the study was to assess the usefulness of midbrain TCS in assessing outcome in patients with Chronic Disorders of Consciousness (DOC). Eleven patients with Minimally Conscious State (MCS) and Unresponsive Wakefulness Syndrome (UWS) were included in the study. We measured the area and echogenicity of the midbrain by encoding and digitally analyzing the corresponding images from the orbitomeatal plane, the morphology of brain parenchyma from the thalamic and cella media plane, and the intracranial circulation...
September 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28869425/effects-of-low-oxygen-dead-space-ventilation-and-breath-holding-test-in-evaluating-cerebrovascular-reactivity-a-comparative-observation
#3
Ke-Ju Ju, Ling-Ling Zhong, Xiao-Yu Ni, Lei Xia, Liu-Jun Xue, Guan-Liang Cheng
OBJECTIVE: This study aims to explore the application prospect of low oxygen dead space ventilation (LODSV) in evaluating vasomotor reactivity (VMR) by comparison between LODSV and breath-holding test (BHT). METHODS: Outpatient or inpatient patients who underwent transcranial Doppler sonography (TCD) were enrolled into this study. These patients successively underwent BHT and LODSV. The cooperation degree, tolerance conditions and adverse reactions in patients were recorded, and VMR was calculated, compared and analyzed...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28865346/prevalence-of-depressive-symptoms-and-their-association-with-brainstem-raphe-echogenicity-in-patients-with-parkinson-s-disease-and-non-pd-controls
#4
Toomas Toomsoo, René Randver, Inga Liepelt-Scarfone, Liis Kadastik-Eerme, Toomas Asser, Inna Rubanovits, Daniela Berg, Pille Taba
Despite advances in diagnostics and clinical recognition, depressive symptoms in Parkinson's disease (PD) exceeding normal limits remain effectively untreated. In this study, we report on the prevalence and severity of depressive symptoms as well as their association with brainstem raphe echogenicity in patients with PD and non-PD controls. The study included 266 Estonian PD patients and 168 age- and education-matched controls. Demographic and clinical data was documented. Brainstem raphe (BR) was visualized by transcranial sonography (TCS)...
August 16, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28808649/the-effect-of-a-single-dose-dantrolene-in-patients-with-vasospasm-following-aneurysmal-subarachnoid-hemorrhage
#5
Masih Sabouri, Mahmood Momeni, Fariborz Khorvash, Majid Rezvani, Homayon Tabesh
BACKGROUND: Cerebral vasospasm is a prolonged, occasionally severe, but reversible narrowing of the cerebral arteries that begins 3 to 5 days after the hemorrhage becomes maximal at 14 days. This study is designed to evaluate the effect of dantrolene on the reduction of vasospasm following aneurysmal subarachnoid hemorrhage (SAH). MATERIALS AND METHODS: This randomized controlled clinical trial was conducted on 32 patients with proven aneurysms in AL-Zahra hospital during 2011-2013...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28740270/the-significance-of-brain-transcranial-sonography-in-burning-mouth-syndrome-a-pilot-study
#6
Iris Zavoreo, Vanja Vučićević, Boras, Dijana Zadravec, Vanja Bašić, Kes, Dubravka Ciliga, Dragana Gabrić
OBJECTIVE: Burning mouth syndrome (BMS) is a chronic disorder which is affecting mostly postmenopausal women and is characterized by burning symptoms in the oral cavity on the clinically healthy oral mucosa. Also, the results of previous studies suggested a possible role of peripheral and/or central neurological disturbances in these patients. The aim of this study was to analyze patients with burning mouth syndrome using transcranial sonography. METHODS: By use of transcranial sonography of the brain parenchyma, substantia nigra, midbrain raphe and brain nucleus were evaluated in 20 patients with BMS (64...
March 2017: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/28738837/assessment-of-cerebral-circulation-in-a-porcine-model-of-intravenously-given-e-coli-induced-fulminant-sepsis
#7
Levente Molnár, Norbert Németh, Mariann Berhés, Endre Hajdú, Lóránd Papp, Ábel Molnár, Judit Szabó, Ádám Deák, Béla Fülesdi
BACKGROUND: The aim of the present work was to assess cerebral hemodynamic changes in a porcine model of E.coli induced fulminant sepsis. METHODS: Nineteen healthy female Hungahib pigs, 10-12 weeks old, randomly assigned into two groups: Control (n = 9) or Septic Group (n = 10). In the Sepsis group Escherichia coli culture suspended in physiological saline was intravenously administrated in a continuously increasing manner according to the following protocol: 2 ml of bacterial culture suspended in physiological saline was injected in the first 30 min, then 4 ml of bacterial culture was administered within 30 min, followed by infusion of 32 ml bacterial culture for 2 h...
July 24, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28726052/transcranial-sonography-image-characteristics-in-different-parkinson-s-disease-subtypes
#8
Ai Yan Sheng, Ying Chun Zhang, Yu Jing Sheng, Cai Shan Wang, Ying Zhang, Hua Hu, Wei Feng Luo, CHun-Feng LIu
Recently, Parkinson's disease (PD) has been classified into three subtypes: postural instability gait difficulty (PIGD), tremor dominate (TD), and indeterminate PD. Transcranial sonography (TCS) is considered to be an important tool to diagnose PD. However, it is uncertain that whether there are differences in TCS image characteristics in different PD subtypes, so 373 idiopathic PD (188 PIGD, 108 TD, 77 indeterminate PD) were registered and received TCS in our investigation; also, the association between clinical characteristics and TCS results in different PD subtypes was analyzed...
July 19, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28671861/the-transcranial-doppler-sonography-for-optimal-monitoring-and-optimization-of-cerebral-perfusion-in-aortic-arch-surgery-a-case-series
#9
Tamer Ghazy, Ayham Darwisch, Torsten Schmidt, Phong Nguyen, Sohaila Elmihy, Zuzana Fajfrova, Claudia Zickmüller, Klaus Matschke, Utz Kappert
OBJECTIVE: To analyze the feasibility and advantages of transcranial doppler sonography (TCD) for monitoring and optimization of selective cerebral perfusion (SCP) in aortic arch surgery. METHODS: From April 2013 to April 2014, nine patients with extensive aortic pathology underwent surgery under moderate hypothermic cardiac arrest with unilateral antegrade SCP under TCD monitoring in our institution. Adequate sonographic window and visualization of circle of Willis were to be confirmed...
June 16, 2017: Heart Surgery Forum
https://www.readbyqxmd.com/read/28669033/monitoring-the-brain-after-cardiac-arrest-a-new-era
#10
REVIEW
Niraj Sinha, Sam Parnia
PURPOSE OF REVIEW: Of the approximately 350,000 out-of-hospital, and 750,000 after in-hospital cardiac arrest (CA) events in the US annually approximately 5-9% and 20% respectively may achieve return of spontaneous circulation (ROSC) after attempted cardiopulmonary resuscitation (CPR). Up to 2/3 of these initial survivors may go on die in the subsequent 24-72 hours after ROSC due to a combination of (1) on-going cerebral injury, (2) myocardial dysfunction and (3) massive systemic inflammatory response...
August 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28665368/-an-effect-of-cerebral-hemodynamics-in-patients-with-cerebrovascular-disorders-on-the-in-hospital-transportation
#11
V I Gorbachev, A V Lokhov, S M Gorbacheva, E Yu Sedova
In-hospital transportation of 76 patients with cerebrovascular disorders, including those in the first postoperative day, was performed. Two cerebral hemodynamic measurements were carried out five minutes before and immediately after transportation using transcranial Doppler sonography. Significant changes in cerebral blood flow in the operated patients were shown. No significant effect on the rate of cerebral blood flow was identified in patients with ischemic lesions.
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28647434/hyperechogenicity-of-substantia-nigra-for-differential-diagnosis-of-parkinson-s-disease-a-meta-analysis
#12
REVIEW
Azin Shafieesabet, Seyed-Mohammad Fereshtehnejad, Azadeh Shafieesabet, Ahmad Delbari, Hamid Reza Baradaran, Ronald B Postuma, Johan Lökk
Studies have suggested that the majority of patients with Parkinson's disease have abnormal ultrasound hyperechogenicity of the substantia nigra, and that this may be useful in diagnosis. We performed a systematic review and meta-analysis to evaluate diagnostic value of substantia nigra ultrasound to differentiate Parkinson's disease from atypical parkinsonism and from essential tremor. We systematically searched PubMed and EMBASE for relevant studies published until November 2016. Eligible articles were screened, data were extracted and study quality was scored by two independent reviewers...
June 15, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28619839/transcranial-duplex-sonography-predicts-outcome-following-an-intracerebral-hemorrhage
#13
P Camps-Renom, J Méndez, E Granell, F Casoni, L Prats-Sánchez, A Martínez-Domeño, D Guisado-Alonso, J Martí-Fàbregas, R Delgado-Mederos
BACKGROUND AND PURPOSE: Several radiologic features such as hematoma volume are related to poor outcome following an intracerebral hemorrhage and can be measured with transcranial duplex sonography. We sought to determine the prognostic value of transcranial duplex sonography in patients with intracerebral hemorrhage. MATERIALS AND METHODS: We conducted a prospective study of patients diagnosed with spontaneous intracerebral hemorrhage. Transcranial duplex sonography examinations were performed within 2 hours of baseline CT, and we recorded the following variables: hematoma volume, midline shift, third ventricle and lateral ventricle diameters, and the pulsatility index in both MCAs...
August 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28615430/characterization-of-patients-with-longstanding-idiopathic-rem-sleep-behavior-disorder
#14
Alex Iranzo, Ambra Stefani, Monica Serradell, Maria Jose Martí, Francisco Lomeña, Philipp Mahlknecht, Heike Stockner, Carles Gaig, Ana Fernández-Arcos, Werner Poewe, Eduard Tolosa, Birgit Högl, Joan Santamaria
OBJECTIVE: To evaluate the presence of prodromal markers of Parkinson disease (PD) in patients with longstanding idiopathic REM sleep behavior disorder (IRBD), a small subgroup of individuals with IRBD with long-term follow-up thought not to be at risk of developing PD. METHODS: Demographic, clinical, and neuroimaging markers of PD were evaluated in 20 patients with polysomnographic-confirmed longstanding IRBD and in 32 matched controls. RESULTS: Patients were 16 men and 4 women with mean age of 72...
July 18, 2017: Neurology
https://www.readbyqxmd.com/read/28599801/relation-of-ideal-cardiovascular-health-metrics-to-asymptomatic-polyvascular-disease-in-a-chinese-population
#15
MULTICENTER STUDY
Qian Zhang, Ruixuan Jiang, Yizheng Wang, Shufeng Zhang, Shengyun Chen, Yaqing Zhang, Xiuhua Guo, Shouling Wu, Xingquan Zhao
Atherosclerosis is a systemic disease with manifestations in multiple vascular beds. Ideal cardiovascular health (CVH) metrics relate to cardiovascular and cerebrovascular disease. However, the relation between ideal CVH metrics and asymptomatic polyvascular disease (polyVD) is unknown. We collected information on the 7 CVH metrics among 5,224 participants aged ≥40 years from 2010 to 2011. Intracranial artery stenosis, extracranial artery stenosis, and lower extremity artery disease were detected by transcranial Doppler, duplex sonography, and by calculating ankle-brachial index...
August 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28552865/new-development-of-diagnosis-and-treatment-for-parkinson-s-disease
#16
REVIEW
Satoshi Orimo
New methods for the diagnosis and new treatments for Parkinson's disease (PD) were explained. As imaging tools, neuromelanin imaging using brain MRI, meta-iodobenzylguanidine (MIBG) cardiac scintigraphy, dopamine transporter scintigraphy, and transcranial sonography were introduced. Olfactory dysfunction and REM sleep behavior disorders (RBD), which are important non-motor symptoms, and the new Clinical Criteria for PD launched by Movement Disorder Society (MDS) were also described. Investigative new medications and new anti-PD medications, which recently became available in Japan, were introduced...
June 28, 2017: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/28536947/brainstem-nuclei-changes-in-migraine-detected-by-transcranial-sonography
#17
Katarina Blažina, Darija Mahović-Lakušić, Maja Relja
The aim of this study was to estimate the role of transcranial sonography in detecting basal ganglia changes as structural biomarkers in migraine. Transcranial sonography was performed on Aloka prosound α-10. Semiquantitative and planimetric methods were applied when basal ganglia changes were detected. Comparison between groups was performed by unpaired Student's t test and Spearman's correlation test. We analyzed 30 migraine patients and 30 age-/sex-matched controls. Substantia nigra hyperechogenicity was detected in 36...
August 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28512500/the-effect-of-chunghyul-dan-on-hyperventilation-induced-carbon-dioxide-reactivity-of-the-middle-cerebral-artery-in-normal-subjects-a-dose-dependent-study
#18
Chul Jin, Sang-Kwan Moon, Seung-Yeon Cho, Seong-Uk Park, Woo-Sang Jung, Jung-Mi Park, Chang-Nam Ko, Ki-Ho Cho, Seungwon Kwon
Background. This study was conducted to show the prompt effect of chunghyul-dan (CHD) on cerebral hemodynamics in order to provide evidence for its use in stroke prevention. Methods. Hyperventilation-induced CO2 reactivity of the middle cerebral artery was measured in 12 healthy male volunteers (mean age: 26.3 ± 1.1 years) using transcranial Doppler sonography. All subjects were examined before and for 3 hours after administration, with an interval of 1 week between measurements. Results. Compared to baseline, the CO2 reactivity of the middle cerebral artery increased significantly at 2 and 3 hours after the administration of CHD (600 mg and 1200 mg)...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28490351/transcranial-doppler-sonography-is-not-a-valid-diagnostic-tool-for-detection-of-basilar-artery-stenosis-or-in-stent-restenosis-a-retrospective-diagnostic-study
#19
Woori Koh, Kai Kallenberg, André Karch, Tobias Frank, Michael Knauth, Mathias Bähr, Jan Liman
BACKGROUND: There are contradictory reports concerning the validity of transcranial sonography (TCD and TCCS) for examinations of the basilar artery. Here we investigated sensitivity and specificity of transcranial sonography for the detection of basilar artery stenosis and in-stent-restenosis compared to cerebral angiography. METHODS: We analyzed data of 104 examinations of the basilar artery. The association between sonographic peak systolic velocity (PSV) and degree of stenosis obtained by cerebral angiography was evaluated applying Spearman's correlation coefficient...
May 11, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28484291/follow-up-of-vasospasm-by-transcranial-doppler-sonography-tcd-in-subarachnoid-hemorrhage-sah
#20
Jasminka Djelilovic-Vranic, Vanja Basic-Kes, Merita Tiric-Campara, Edina Djozic, Jasmin Kulenovic
INTRODUCTION: Subarachnoid hemorrhage (SAH)represents hemorrhage in the space between arachnoidea and pia mater, due to aneurysm burst, spontaneously or as a consequence of trauma. It is condition that occurs more common in women than men, and its most common complications are rebleeding and vazospasm. As a result of vasospasm, develops ischemia in the portion of brain tissue that can cause additional neurological deficit. Transcranial Doppler Sonography (TCD) is a noninvasive ultrasound diagnostic method that allows monitoring of the state of intracerebral hemodynamics...
March 2017: Acta Informatica Medica: AIM
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