keyword
MENU ▼
Read by QxMD icon Read
search

Selective cerebral perfusion

keyword
https://www.readbyqxmd.com/read/29780728/intimal-re-layering-technique-for-type-a-acute-aortic-dissection-reconstructing-the-intimal-layer-continuity-to-induce-remodeling-of-the-false-channel
#1
Eugenio Neri, Enrico Tucci, Giulio Tommasino, Giulia Guaccio, Carmelo Ricci, Pierleone Lucatelli, Marco Cini, Roberto Ceresa, Antonio Benvenuti, Luigi Muzzi
Background: Residual false channel is common after repair of type A acute aortic dissection (TAAAD). Starting from our recent series of TAAAD patients we carried out a retrospective analysis, regarding the failure of primary exclusion at the time of the initial operation. We classified the location of the principal entry tears perfusing the residual false channel. The proposed technique represents our attempt to correct the mechanism of false channel perfusion during primary repair. We describe a new technique designed to address some limitations of standard hemiarch aortic replacement...
2018: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29774008/repeated-endovascular-treatment-of-early-recurrent-proximal-middle-cerebral-artery-occlusion-case-report-and-brief-review-of-the-literature
#2
Simon Fandler, Hannes Deutschmann, Franz Fazekas, Thomas Gattringer
Mechanical thrombectomy (MT) is the gold standard treatment for large vessel occlusion (LVO) stroke of the anterior circulation. Whether MT can also be effectively and safely performed in early recurrent LVO is largely unclear. We present the case of a middle-aged patient who was successfully treated by MT for right proximal middle cerebral artery (MCA) occlusion with excellent outcome. One day after discharge (9 days after the first MT), the patient was readmitted with wake-up stroke. MRI again revealed right proximal MCA occlusion with severe diffusion-perfusion mismatch...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29770889/autoregulation-in-the-neuro-icu
#3
REVIEW
Anson Wang, Santiago Ortega-Gutierrez, Nils H Petersen
PURPOSE OF REVIEW: The purpose of this review is to briefly describe the concept of cerebral autoregulation, to detail several bedside techniques for measuring and assessing autoregulation, and to outline the impact of impaired autoregulation on clinical and functional outcomes in acute brain injury. Furthermore, we will review several autoregulation studies in select forms of acute brain injuries, discuss the potential for its use in patient management in the ICU, and suggest further avenues for research...
May 17, 2018: Current Treatment Options in Neurology
https://www.readbyqxmd.com/read/29764033/-the-combined-application-of-magnetic-resonance-dti-and-3d-pcasl-in-differential-diagnosis-of-hyper-acute-and-acute-ischemic-cerebral-infarction
#4
Z Y Dai, F Chen, L Z Yao, C S Dong, H C Shi, P L Pan, Y Liu, Z P Zhang
Objective: To explore the clinical value of magnetic resonance diffusion tensor imaging (DTI) combined with 3D pseudo continuous arterial spin labeling (3D-pcASL) perfusion imaging in differential diagnosis of hyper-acute and acute ischemic cerebral infarction. Methods: A total of 42 patients with confirmed unilateral ischemic cerebral infarction from February 2015 to October 2017 of Affiliated Yancheng Hospital of Southeast University Medical College were collected. DTI and 3D-pcASL images of hyper-acute (14 patients, group A) and acute (28 patients, group B) ischemic cerebral infarction were retrospectively analyzed...
May 8, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29763638/effects-of-sc99-on-cerebral-ischemia-perfusion-injury-in-rats-selective-modulation-of-microglia-polarization-to-m2-phenotype-via-inhibiting-jak2-stat3-pathway
#5
Yiping Ding, Jinhong Qian, Haiying Li, Haitao Shen, Xiang Li, Yan Kong, Zhuan Xu, Gang Chen
Inhibition of Janus kinases 2-Signal transducers and activators of transcription3 (JAK2-STAT3) pathway has been shown to exert anti-inflammatory actions. SC99, a novel specific inhibitor targeting JAK2-STAT3 pathway, has been verified to negatively modulate platelet activation and aggregation in vitro. In current study, a middle cerebral artery occlusion and reperfusion (MCAO/R) model was established in Sprague Dawley rats and primary cultured microglia was exposed to oxygen and glucose deprivation (OGD/R) in vitro...
May 12, 2018: Neuroscience Research
https://www.readbyqxmd.com/read/29748059/experience-with-the-axillary-artery-as-an-arterial-cannulation-site-in-patients-with-acute-type-a-aortic-dissection
#6
Arpit Talwar, Elvina Wiadji, Manu N Mathur
BACKGROUND: The optimal arterial cannulation site in patients undergoing surgical management of acute type A aortic dissection (ATAAD) remains controversial. The axillary artery is rarely involved in the dissection process, provides antegrade flow in the descending aorta and minimises intraoperative malperfusion. The purpose of this study is to evaluate a single surgeon's experience of axillary artery cannulation for ATAAD repair. METHODS: All consecutive patients over a 15-year period having surgical repair of ATAAD were included in this study...
March 29, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29746644/relationships-between-selective-neuronal-loss-and-microglial-activation-after-ischaemic-stroke-in-man
#7
Rhiannon S Morris, P Simon Jones, Josef A Alawneh, Young T Hong, Tim D Fryer, Franklin I Aigbirhio, Elizabeth A Warburton, Jean-Claude Baron
Modern ischaemic stroke management involves intravenous thrombolysis followed by mechanical thrombectomy, which allows markedly higher rates of recanalization and penumbral salvage than thrombolysis alone. However, <50% of treated patients eventually enjoy independent life. It is therefore important to identify complementary therapeutic targets. In rodent models, the salvaged penumbra is consistently affected by selective neuronal loss, which may hinder recovery by interfering with plastic processes, as well as by microglial activation, which may exacerbate neuronal death...
May 9, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29736562/evaluation-of-brain-nuclear-medicine-imaging-tracers-in-a-murine-model-of-sepsis-associated-encephalopathy
#8
Dávid Szöllősi, Nikolett Hegedűs, Dániel S Veres, Ildikó Futó, Ildikó Horváth, Noémi Kovács, Bernadett Martinecz, Ádám Dénes, Daniel Seifert, Ralf Bergmann, Ondřej Lebeda, Zoltán Varga, Zoltán Kaleta, Krisztián Szigeti, Domokos Máthé
PURPOSE: The purpose of this study was to evaluate a set of widely used nuclear medicine imaging agents as possible methods to study the early effects of systemic inflammation on the living brain in a mouse model of sepsis-associated encephalopathy (SAE). The lipopolysaccharide (LPS)-induced murine systemic inflammation model was selected as a model of SAE. PROCEDURES: C57BL/6 mice were used. A multimodal imaging protocol was carried out on each animal 4 h following the intravenous administration of LPS using the following tracers: [99m Tc][2,2-dimethyl-3-[(3E)-3-oxidoiminobutan-2-yl]azanidylpropyl]-[(3E)-3-hydroxyiminobutan-2-yl]azanide ([99m Tc]HMPAO) and ethyl-7-[125 I]iodo-5-methyl-6-oxo-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carboxylate ([125 I]iomazenil) to measure brain perfusion and neuronal damage, respectively; 2-deoxy-2-[18 F]fluoro-D-glucose ([18 F]FDG) to measure cerebral glucose uptake...
May 7, 2018: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/29701386/simplified-technique-for-aortic-arch-replacement-in-patients-at-high-risk-for-frozen-elephant-trunk
#9
Álvaro Laranjeira Santos, António Cruz Tomás, Jorge Pinheiro Santos, Daniela Varela-Afonso, José Fragata
INTRODUCTION: Surgical approach of multisegmental pathology of the thoracic aorta, namely aortic arch / descending aorta is challenging. The Frozen Elephant Trunk (FET) has good results, with acceptable risk. However, in the subgroup of patients (pts) older than 75 years and with important comorbidities, the surgical risk is very high. OBJECTIVES: Review short-term results of this original, simplified and potentially hybrid technique developed in our Department for this subgroup of patients...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29696532/quantitative-dynamic-susceptibility-contrast-perfusion-weighted-imaging-guided-customized-gamma-knife-re-irradiation-of-recurrent-high-grade-gliomas
#10
Bao Wang, Peng Zhao, Yi Zhang, Mingxu Ge, Chuanjin Lan, Chuanting Li, Qi Pang, Shangchen Xu, Yingchao Liu
INTRODUCTION: Treatment of recurrent high-grade gliomas (rHGG) has always been challenging. This study aimed to explore the treatment effect of quantitative dynamic susceptibility contrast perfusion-weighted imaging (DSC-PWI)-guided gamma knife radiosurgery (GKRS) on rHGG. METHODS: Between April 2014 and July 2016, 26 consecutive patients were treated by quantitative DSC-PWI-guided GKRS as salvage treatment for rHGG. The gross tumor volume (GTV) was defined as the high perfusion area on absolute cerebral blood volume maps, with a cutoff value of 22 ml/100 g...
April 26, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29695652/total-aortic-arch-replacement-after-thoracic-endovascular-aortic-repair-using-left-subclavian-arterial-perfusion
#11
Taijiro Sueda, Shinya Takahashi, Keijiro Katayama
We present the case of an 86-year-old male with an aortic arch saccular aneurysm who underwent zone 1 thoracic endovascular aortic repair (TEVAR) with debranching from the right subclavian artery to the left carotid and left subclavian arteries. The patient developed a type Ia endoleak 1 month later. Postoperative contrast computed tomography (CT) showed a hematoma around the aneurysm, concerning for impending rupture. He thus underwent emergency endograft removal and replacement with a one-branched graft using selective cerebral perfusion via the left subclavian artery perfusion...
April 26, 2018: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29685718/distal-arch-aneurysm-repair-using-left-subclavian-artery-transposition-with-stented-elephant-trunk-in-the-hybrid-repair-era
#12
Rui-Dong Qi, Jun-Ming Zhu, Yong-Min Liu, Lei Chen, Cheng-Nan Li, Xiao-Yan Xing, Nan Zhang, Li-Zhong Sun
BACKGROUND: Hybrid aortic arch repair is an invasive approach to the surgical management of distal aortic arch aneurysm. The complications associated with hybrid aortic arch repair, such as stroke and endoleaks, are not uncommon and late reintervention is frequent. We retrospectively reviewed our experience of distal aortic arch aneurysm repair using the stented elephant trunk procedure with left subclavian artery (LSCA)-left common carotid artery (LCCA) transposition in the hybrid repair era...
March 27, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29678936/effect-of-stroke-thrombolysis-predicted-by-distal-vessel-occlusion-detection
#13
Wolfgang G Kunz, Matthias P Fabritius, Wieland H Sommer, Christopher Höhne, Pierre Scheffler, Lukas T Rotkopf, Wolfgang P Fendler, Bastian O Sabel, Felix G Meinel, Franziska Dorn, Birgit Ertl-Wagner, Maximilian F Reiser, Kolja M Thierfelder
OBJECTIVE: Among ischemic stroke patients with negative CT angiography (CTA), we aimed to determine the predictive value of enhanced distal vessel occlusion detection using CT perfusion postprocessing (waveletCTA) for the treatment effect of IV thrombolysis (IVT). METHODS: Patients were selected from 1,851 consecutive patients who had undergone CT perfusion. Inclusion criteria were (1) significant cerebral blood flow (CBF) deficit, (2) no occlusion on CTA, and (3) infarction confirmed on follow-up...
April 20, 2018: Neurology
https://www.readbyqxmd.com/read/29656926/resting-state-cerebral-blood-flow-with-arterial-spin-labeling-mri-in-developing-human-brains
#14
Feng Liu, Yunsuo Duan, Bradley S Peterson, Iris Asllani, Fernando Zelaya, David Lythgoe, Alayar Kangarlu
The development of brain circuits is coupled with changes in neurovascular coupling, which refers to the close relationship between neural activity and cerebral blood flow (CBF). Studying the characteristics of CBF during resting state in developing brain can be a complementary way to understand the functional connectivity of the developing brain. Arterial spin labeling (ASL), as a noninvasive MR technique, is particularly attractive for studying cerebral perfusion in children and even newborns. We have collected pulsed ASL data in resting state for 47 healthy subjects from young children to adolescence (aged from 6 to 20 years old)...
March 24, 2018: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/29649955/repair-of-tevar-associated-type-a-dissection-in-the-elderly-is-possible-with-reasonable-morbidity-and-mortality
#15
Angela Kornberger, Risteski Petar, Hazem El Beyrouti, Mahmud Khalil, Iris Burck, Nancy Halloum, Andres Beiras-Fernandez, Christian-Friedrich Vahl
BACKGROUND: Type A aortic dissection (AAD) is a devastating complication of thoracic endovascular repair (TEVAR). In elderly patients, surgery for AAD carries considerable morbidity and mortality. Repair of AAD after previous TEVAR is an even greater challenge as it usually requires the arch to be addressed and a preexisting stent graft to be included into the aortic repair. METHODS: A case series of 5 elderly patients who presented with acute AAD after previous TEVAR was reviewed...
January 1, 2018: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29617791/beating-heart-aortic-arch-surgery-in-neonates-and-infants
#16
Juan-Miguel Gil-Jaurena, María-Teresa González-López, Ana Pita, Ramón Pérez-Caballero, Mónica Herviás, Dorotea Blanco
OBJECTIVES: Aortic arch repair has been shifted from deep hypothermia plus circulatory arrest to cerebral perfusion at tepid temperatures. A step forward is a simultaneous brain-coronary perfusion, allowing beating-heart arch surgery. METHODS: A 'Y' cannula from the arterial line delivers oxygenated blood to brain and heart. The arch is repaired on a beating heart at 25°C. Intracardiac repair is performed after running cardioplegia through the root line. Fifty patients are classified into 3 groups: A, Norwood (8 neonates); B, aortic arch (14 children) and C, aortic arch plus intracardiac repair (28 patients)...
April 2, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29605960/moderate-hypothermic-circulatory-arrest-%C3%A2-28%C3%A2-c-with-selective-antegrade-cerebral-perfusion-for-total-arch-replacement-with-frozen-elephant-trunk-technique
#17
Ali El-Sayed Ahmad, Petar Risteski, Mahmut Ay, Nestoras Papadopoulos, Anton Moritz, Andreas Zierer
OBJECTIVES:  The optimal hypothermic level during circulatory arrest in aortic arch surgery remains controversial, particularly in frozen elephant trunk (FET) procedures. We describe herein our experience for total arch replacement with FET technique under moderate systemic hypothermic circulatory arrest (≥ 28°C) during selective antegrade cerebral perfusion. METHODS:  Between January 2009 and January 2016, 38 consecutive patients underwent elective total arch replacement for various aortic arch pathologies with FET technique using the E-vita Open hybrid prosthesis (Jotec GmbH, Hechingen, Germany)...
April 1, 2018: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/29604486/effects-of-caffeine-on-the-preterm-brain-an-observational-study
#18
Laura M L Dix, Frank van Bel, Willem Baerts, Petra M A Lemmers
BACKGROUND AND AIM: Caffeine improves neurodevelopmental outcome of preterm infants. This study analyses the effects of caffeine on the neonatal brain. We hypothesized that caffeine has a neuroprotective effect through an increase in oxygen metabolism; reflected by increased cerebral oxygen extraction, electrical function, and perfusion. METHODS: Preterm infants <32 weeks gestation (GA) receiving their primary dose caffeine-base (10 mg/kg) were included. Ten minutes of stable monitoring were selected before, during, and every hour up to 6 h after caffeine...
March 28, 2018: Early Human Development
https://www.readbyqxmd.com/read/29600320/early-results-of-total-arch-replacement-under-partial-sternotomy
#19
Yosuke Inoue, Kenji Minatoya, Yoshimasa Seike, Atsushi Ohmura, Kyokun Uehara, Hiroaki Sasaki, Hitoshi Matsuda, Junjiro Kobayashi
OBJECTIVE: Partial sternotomy with limited skin incision has been utilized for cardiac surgery. We, therefore, started to apply the partial sternotomy for total arch replacement since 2013 in selected cases. The aim of this study reported the results of our early experiences. METHODS: Between July 2013 and December 2015, we retrospectively reviewed 15 cases (median age 72, range 67-84, 15 male) who underwent total arch replacement thorough partial sternotomy. All procedures were performed under hypothermic circulatory arrest with selective cerebral perfusion...
March 29, 2018: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29590367/selective-visceral-perfusion-improves-renal-flow-and-hepatic-function-in-neonatal-aortic-arch-repair
#20
Joaquín Fernández-Doblas, Christian Ortega-Loubon, Joaquín Pérez-Andreu, Marcos Linés, Manuel Fernández-Molina, Raúl F Abella
OBJECTIVES: The aortic arch repair in the neonatal period is a complex procedure with significant morbidity. We define a useful double-perfusion technique and its effect on the function of abdominal organs in the postoperative course. METHODS: Nine patients with double perfusion (Group 1) were compared with 14 patients with antegrade cerebral perfusion (Group 2). The objective was to discern the incidence of postoperative acute kidney injury and impaired hepatic function, as well as tissue perfusion and myocardial function parameters...
March 26, 2018: Interactive Cardiovascular and Thoracic Surgery
keyword
keyword
17225
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"