keyword
MENU ▼
Read by QxMD icon Read
search

Hyperperfusion

keyword
https://www.readbyqxmd.com/read/28916863/intracerebral-hemorrhage-as-a-manifestation-of-cerebral-hyperperfusion-syndrome-after-carotid-revascularization-systematic-review-and-meta-analysis
#1
REVIEW
Pedro Abreu, Jerina Nogueira, Filipe Brogueira Rodrigues, Ana Nascimento, Mariana Carvalho, Ana Marreiros, Hipólito Nzwalo
BACKGROUND: Intracerebral hemorrhage (ICH) in the context of cerebral hyperperfusion syndrome (CHS) is an uncommon but potentially lethal complication after carotid revascularization for carotid occlusive disease. Information about its incidence, risk factors and fatality is scarce. Therefore, we aimed to perform a systematic review and meta-analysis focusing on the incidence, risk factors and outcomes of ICH in the context of CHS after carotid revascularization. METHODS: We searched the PubMed and EBSCO hosts for all studies published in English about CHS in the context of carotid revascularization...
September 15, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28912280/added-value-of-arterial-spin-labeling-mr-imaging-for-the-differentiation-of-cerebellar-hemangioblastoma-from-metastasis
#2
K M Kang, C-H Sohn, S-H You, J G Nam, S H Choi, T J Yun, R-E Yoo, J-H Kim
BACKGROUND AND PURPOSE: In adults with only cerebellar masses, hemangioblastoma and metastasis are the 2 most important differential diagnoses. Our aim was to investigate the added value of arterial spin-labeling MR imaging for differentiating hemangioblastoma from metastasis in patients with only cerebellar masses. MATERIALS AND METHODS: This retrospective study included a homogeneous cohort comprising patients with only cerebellar masses, including 16 hemangioblastomas and 14 metastases...
September 14, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28894884/characterization-of-skull-base-lesions-using-pseudo-continuous-arterial-spin-labeling
#3
B Geerts, D Leclercq, S Tezenas du Montcel, B Law-Ye, S Gerber, D Bernardeschi, D Galanaud, D Dormont, N Pyatigorskaya
PURPOSE: Pseudo-continuous arterial spin labeling (pCASL) is a non-invasive magnetic resonance (MR) perfusion technique. Our study aimed at estimating the diagnostic performance of the pCASL sequence in assessing the perfusion of skull base lesions both qualitatively and quantitatively and at providing cut-off values for differentiation of specific skull base lesions. METHODS: In this study 99 patients with histopathologically confirmed skull base lesions were retrospectively enrolled...
September 11, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28885209/investigation-of-the-acute-plantar-fasciitis-with-contrast-enhanced-ultrasound-and-shear-wave-elastography-first-results
#4
Franz Josef Putz, Matthias G Hautmann, Miriam Banas, Ernst Michael Jung
BACKGROUND: The plantar fasciitis is a common disease with a high prevalence in public and a frequent cause of heel pain. OBJECTIVE: In our pilot study, we wanted to characterise the feasibility of shear-wave elastography and contrast-enhanced ultrasound (CEUS) in the assessment of the plantar fasciitis. METHODS: 23 cases of painful heels were examined by B-Mode ultrasound, Power Doppler (PD), shear wave elastography and contrast-enhanced ultrasound before anti-inflammatory radiation...
September 4, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28882138/a-dual-therapy-of-off-pump-temporary-left-ventricular-extracorporeal-device-and-amniotic-stem-cell-for-cardiogenic-shock
#5
Toshinobu Kazui, Phat L Tran, Tia R Pilikian, Katie M Marsh, Raymond Runyan, John Konhilas, Richard Smith, Zain I Khalpey
BACKGROUND: Temporary mechanical circulatory support device without sternotomy has been highly advocated for severe cardiogenic shock patient but little is known when coupled with amniotic stem cell therapy. CASE PRESENTATION: This case reports the first dual therapy of temporary left ventricular extracorporeal device CentriMag with distal banding technique and human amniotic stem cell injection for treating a severe refractory cardiogenic shock of an 68-year-old female patient...
September 7, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28866638/prediction-of-hyperperfusion-phenomenon-after-carotid-artery-stenting-and-carotid-angioplasty-using-quantitative-dsa-with-cerebral-circulation-time-imaging
#6
Keita Yamauchi, Yukiko Enomoto, Katharina Otani, Yusuke Egashira, Toru Iwama
BACKGROUND: Hyperperfusion syndrome after carotid interventions has a low incidence but it can lead to morbidity and mortality. OBJECTIVE: To evaluate the usefulness of quantitative DSA for predicting hyperperfusion phenomenon (HPP) after carotid artery stenting and angioplasty. METHODS: Thirty-three consecutive patients with carotid stenosis treated with carotid artery stenting or angioplasty between February 2014 and August 2016 were included...
September 2, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28836059/posterior-reversible-encephalopathy-syndrome-in-children-with-kidney-disease
#7
REVIEW
Cristina Gavrilovici, Ingrith Miron, Luminiţa Voroneanu, Silvia Bădărau, Magdalena Stârcea
Posterior reversible encephalopathy syndrome (PRES) has been described as a neurological condition observed in a variety of clinical settings and is characterized by focal neurological deficits, seizures, headaches, altered mental status, and visual impairment, associated with transient typical lesions on neuroimaging, predominantly in the posterior part of the brain. The most common risk factors for PRES are hypertension, renal diseases, and the use of calcineurin inhibitors. The incidence of PRES in children with renal disorders varies between 4 and 9%, according to different reports...
August 23, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28818254/medical-treatment-strategies-to-reduce-perioperative-morbidity-and-mortality-after-carotid-surgery
#8
REVIEW
A Ross Naylor
There is a paucity of high-quality evidence regarding what constitutes "optimal medical therapy" for the purposes of reducing morbidity/mortality after carotid endarterectomy (CEA). All patients should be prescribed antiplatelet therapy. Low-dose aspirin (75 to 325 mg) should be continued throughout the perioperative period and there is no evidence that higher doses confer additional benefit. There is emerging evidence that early implementation of dual antiplatelet therapy in recently symptomatic patients (aspirin 75 mg plus clopidogrel 75 mg) can reduce recurrent cerebral events before CEA and that dual antiplatelet therapy will significantly reduce stroke due to early postoperative carotid thrombosis...
March 2017: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/28774289/acute-uveal-effusion-during-phacoemulsification-with-preoperative-central-serous-chorioretinopathy-a-case-report
#9
Ruiqi Chang, Yu Du, Zhou Peng, Yi Lu, Xiangjia Zhu
BACKGROUND: We report a case of acute uveal effusion during phacoemulsification in an eye with preoperative chronic central serous chorioretinopathy (CSC). CASE PRESENTATION: A 55-year-old man with a history of chronic CSC for >18 months presented with bilateral opaque lenses. A preoperative ophthalmic examination showed suspected lenticonus and risky anatomical features, including a thick ciliary body, and anterior rotation of the ciliary process and iris root in both eyes...
August 3, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28742798/cerebrovascular-pressure-reactivity-monitoring-using-wavelet-analysis-in-traumatic-brain-injury-patients-a-retrospective-study
#10
COMPARATIVE STUDY
Xiuyun Liu, Joseph Donnelly, Marek Czosnyka, Marcel J H Aries, Ken Brady, Danilo Cardim, Chiara Robba, Manuel Cabeleira, Dong-Joo Kim, Christina Haubrich, Peter J Hutchinson, Peter Smielewski
BACKGROUND: After traumatic brain injury (TBI), the ability of cerebral vessels to appropriately react to changes in arterial blood pressure (pressure reactivity) is impaired, leaving patients vulnerable to cerebral hypo- or hyperperfusion. Although, the traditional pressure reactivity index (PRx) has demonstrated that impaired pressure reactivity is associated with poor patient outcome, PRx is sometimes erratic and may not be reliable in various clinical circumstances. Here, we introduce a more robust transform-based wavelet pressure reactivity index (wPRx) and compare its performance with the widely used traditional PRx across 3 areas: its stability and reliability in time, its ability to give an optimal cerebral perfusion pressure (CPPopt) recommendation, and its relationship with patient outcome...
July 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28737109/clinical-outcome-prediction-after-thrombectomy-of-proximal-middle-cerebral-artery-occlusions-by-the-appearance-of-lenticulostriate-arteries-on-magnetic-resonance-angiography-a-retrospective-analysis
#11
Johannes Kaesmacher, Kornelia Kreiser, Nathan W Manning, Alexandra S Gersing, Silke Wunderlich, Claus Zimmer, Justus F Kleine, Benedikt Wiestler, Tobias Boeckh-Behrens
Post-ischemic vasodynamic changes in infarcted brain parenchyma are common and range from hypo- to hyperperfusion. In the present study, appearance of the lenticulostriate arteries (LSAs) on postinterventional 3T time-of-flight (TOF)-MRA suggestive for altered post-stroke vasodynamics following thrombectomy was investigated. Patients who underwent thrombectomy for a proximal MCA occlusion and for whom postinterventional 3T TOF-MRA (median at day 3) was available, were included in this retrospective analysis (n=98)...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28704454/indocyanine-green-kinetics-with-near-infrared-spectroscopy-predicts-cerebral-hyperperfusion-syndrome-after-carotid-artery-stenting
#12
Ichiro Nakagawa, Hun Soo Park, Shohei Yokoyama, Shuichi Yamada, Yasushi Motoyama, Young Su Park, Takeshi Wada, Kimihiko Kichikawa, Hiroyuki Nakase
BACKGROUND: Cerebral hyperperfusion syndrome (HPS) is a potentially life-threatening complication following carotid artery stenting (CAS) and carotid endoarterectomy (CEA). Early prediction and treatment of patients at risk for HPS are required in patients undergoing CAS because HPS occurs significantly earlier after CAS than CEA. Near-infrared spectroscopy (NIRS) is often used for monitoring, and indocyanine green (ICG) kinetics by NIRS (ICG-NIRS) can detect reductions in cerebral perfusion in patients with acute stroke...
2017: PloS One
https://www.readbyqxmd.com/read/28701298/carotid-stenting-for-unilateral-stenosis-can-increase-contralateral-hemispheric-cerebral-blood-flow
#13
Akiyo Sadato, Shingo Maeda, Motoharu Hayakawa, Kazuhide Adachi, Hiroshi Toyama, Ichiro Nakahara, Yuichi Hirose
BACKGROUND: The revascularization of carotid stenosis can increase ipsilateral cerebral blood flow (CBF). Occasionally, elevated CBF is also evident on the contralateral side, but this phenomenon is poorly understood. OBJECTIVE: To analyze retrospectively the relationship between a contralateral CBF increase and several clinical and radiologic features. MATERIALS AND METHODS: We retrospectively analyzed 40 patients with unilateral cervical carotid stenosis treated by carotid artery stenting (CAS)...
July 12, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28689257/fluid-attenuated-inversion-recovery-vascular-hyperintensities-in-predicting-cerebral-hyperperfusion-after-intracranial-arterial-stenting
#14
Chih-Cheng Wan, David Yen-Ting Chen, Ying-Chi Tseng, Feng-Xian Yan, Kun-Yu Lee, Chen-Hua Chiang, Chi-Jen Chen
PURPOSE: No reliable imaging sign predicting cerebral hyperperfusion after intracranial arterial stenting (IAS) had been described in the literature. This study evaluated the effect of fluid-attenuated inversion recovery vascular hyperintensities (FVHs), also called hyperintense vessel sign on T2-weighted fluid-attenuated inversion recovery (T2-FLAIR) MR images, in predicting significant increase in cerebral blood flow (CBF) defined by arterial spin labeling (ASL) after IAS. METHODS: We reviewed ASL CBF images and T2-FLAIR MR images before (D0), 1 day after (D1), and 3 days after (D3) IAS of 16 patients...
August 2017: Neuroradiology
https://www.readbyqxmd.com/read/28687500/analysis-of-hemodynamic-changes-in-early-stage-after-carotid-stenting-by-transcranial-doppler-a-preliminary-study
#15
Ziguang Yan, Min Yang, Guochen Niu, Yinghua Zou
BACKGROUND: Cerebral hyperperfusion syndrome or hemodynamic instability, caused by the hemodynamic changes, often occur within 6 hr after carotid artery stenting (CAS) The postprocedure cerebral hemodynamic change in the early phase, <6 hr after CAS, is largely unknown. In this study, we evaluated the cerebral hemodynamic changes in patients after CAS using transcranial Doppler (TCD). METHODS: From January 2013 to July 2014, medical records of 61 patients who underwent CAS were reviewed retrospectively...
July 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28679968/clinical-characteristics-and-outcome-in-elderly-patients-with-traumatic-brain-injury-for-establishment-of-management-strategy
#16
Hiroshi Karibe, Toshiaki Hayashi, Ayumi Narisawa, Motonobu Kameyama, Atsuhiro Nakagawa, Teiji Tominaga
In recent years, instances of neurotrauma in the elderly have been increasing. This article addresses the clinical characteristics, management strategy, and outcome in elderly patients with traumatic brain injury (TBI). Falls to the ground either from standing or from heights are the most common causes of TBI in the elderly, since both motor and physiological functions are degraded in the elderly. Subdural, contusional and intracerebral hematomas are more common in the elderly than the young as the acute traumatic intracranial lesion...
August 15, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28666454/fluorescence-optical-imaging-and-musculoskeletal-ultrasonography-in-juvenile-idiopathic-polyarticular-disease-before-and-during-antirheumatic-treatment%C3%A2-a-multicenter-non-interventional-diagnostic-evaluation
#17
Ariane Klein, Georg Werner Just, Stephanie Gabriele Werner, Prasad T Oommen, Kirsten Minden, Ingrid Becker, Hans-Eckhard Langer, Dirk Klee, Gerd Horneff
BACKGROUND: Valid detection of inflamed joints is essential for correct classification, therapeutic decisions, prognosis and assessment of treatment efficacy in juvenile idiopathic arthritis (JIA). Fluorescence optical imaging (FOI) enables visualization of inflammation in arthritis of finger and hand joints and might be used for monitoring. METHODS: A 24-week observational study in polyarticular JIA patients newly starting treatment with methotrexate or an approved biologic was performed in three centers...
June 30, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28665168/cerebral-hyperperfusion-on-arterial-spin-labeling-mri-after-reperfusion-therapy-is-related-to-hemorrhagic-transformation
#18
Shuhei Okazaki, Hiroshi Yamagami, Takeshi Yoshimoto, Yoshiaki Morita, Haruko Yamamoto, Kazunori Toyoda, Masafumi Ihara
Early detection of hemorrhagic transformation after reperfusion therapy is crucial in acute stroke treatment. Here, we evaluated the relationship between hemorrhagic transformation and post-reperfusion hyperperfusion using pulsed arterial spin labeling (ASL) perfusion MRI and (123)I-iodoamphetamine single-photon emission-computed tomography. Patients who developed hemorrhagic transformation showed significantly higher cerebral blood flow in the affected lesion after thrombolysis and/or endovascular intervention...
September 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28664022/intracerebral-hemorrhage-caused-by-cerebral-hyperperfusion-after-superficial-temporal-artery-to-middle-cerebral-artery-bypass-for-atherosclerotic-occlusive-cerebrovascular-disease
#19
Fumihiro Matano, Yasuo Murai, Takayuki Mizunari, Koji Adachi, Shiro Kobayashi, Akio Morita
Few papers have reported detailed accounts of intracerebral hemorrhage caused by cerebral hyperperfusion after superficial temporal artery to middle cerebral artery bypass (STA-MCA) bypass for atherosclerotic occlusive cerebrovascular disease. We report a case of vasogenic edema and subsequent intracerebral hemorrhage caused by the cerebral hyperperfusion syndrome (CHS) after STA-MCA bypass for atherosclerotic occlusive cerebrovascular disease disease without intense postoperative blood pressure control. A 63-year-old man with repeating left hemiparesis underwent magnetic resonance angiography (MRA), which revealed right internal carotid artery (ICA) occlusion...
January 2017: NMC Case Rep J
https://www.readbyqxmd.com/read/28651622/modulation-of-hepatic-perfusion-did-not-improve-recovery-from-hepatic-outflow-obstruction
#20
J Arlt, W Wei, C Xie, A Homeyer, U Settmacher, U Dahmen, O Dirsch
BACKGROUND: Focal hepatic venous outflow obstruction frequently occurs after extended liver resection and leads to a portal hypertension, arterial hypoperfusion and parenchymal necrosis. In this study, we investigated the pharmacological modulation of liver perfusion and hepatic damage in a surgical model of hepatic outflow obstruction after extended liver resection by administration of 5 different drugs in comparison to an operative intervention, splenectomy. METHODS: Male inbred Lewis rats (Lew/Crl) were subjected to right median hepatic vein ligation + 70% partial hepatectomy...
June 26, 2017: BMC Pharmacology & Toxicology
keyword
keyword
91538
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"