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Cardiovascular anesthesia

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https://www.readbyqxmd.com/read/28227134/cardiovascular-interactions-assessed-via-conditional-joint-transfer-entropy-in-patients-developing-atrial-fibrillation-after-coronary-artery-bypass-graft-surgery
#1
Vlasta Bari, Marco Ranucci, Andrea Marchi, Beatrice De Maria, Valeria Pistuddi, Alberto Porta, Vlasta Bari, Marco Ranucci, Andrea Marchi, Beatrice De Maria, Valeria Pistuddi, Alberto Porta, Vlasta Bari, Andrea Marchi, Alberto Porta, Valeria Pistuddi, Beatrice De Maria, Marco Ranucci
Assigned the universe of knowledge Ω as composed by one target and two exogenous signals, the conditional joint transfer entropy (CJTE), assessing the amount of information jointly transferred from the two sources to the target that can be uniquely linked to one of the two sources, was found useful to study cardiovascular control. We propose the assessment of CJTE from systolic arterial pressure (SAP) and respiration (R) to heart period (HP) conditioned on R (CJTESAP, R→HP|R) along the baroreflex, and from HP and R to SAP conditioned on R (CJTEHP, R→SAP|R) along the feedforward mechanical pathway, in 134 patients undergoing coronary artery bypass graft surgery before (PRE) and after (POST) the induction of general anesthesia...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28217049/effectiveness-of-sodium-thiopentone-propofol-and-etomidate-as-an-ideal-intravenous-anesthetic-agent-for-modified-electroconvulsive-therapy
#2
Altaf Hussain Mir, Nida Farooq Shah, Mehraj Ud Din, Shabir Ahmad Langoo, Fayaz Ahmad Reshi
INTRODUCTION: Electroconvulsive therapy (ECT) is a well-established psychiatric treatment in which seizures are electrically induced in patients for therapeutic effects. ECT can produce severe disturbances in the cardiovascular system and a marked increase in cerebral blood flow and intracranial pressure. These cardiovascular changes may be altered using various anesthetic drugs. AIM AND OBJECTIVES: This study was undertaken to compare the effects of intravenous (IV) sodium thiopentone, propofol, and etomidate, used as IV anesthetic agents in modified ECT as regards, induction time and quality of anesthesia, alteration of hemodynamics, seizure duration, and recovery time...
January 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28212182/what-s-new-in-obstetric-anesthesia-the-2016-gerard-w-ostheimer-lecture
#3
Philip E Hess
This special article presents potentially important trends and issues affecting the field of obstetric anesthesia drawn from publications in 2015. Both maternal mortality and morbidity in the United States have increased in recent years because, in part, of the changing demographics of the childbearing population. Pregnant women are older and have more pre-existing conditions and complex medical histories. Cardiovascular and noncardiovascular medical diseases now account for half of maternal deaths in the United States...
March 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28197025/current-perioperative-management-of-pheochromocytomas
#4
REVIEW
Rashmi Ramachandran, Vimi Rewari
Neuroendocrine tumors which have the potential to secrete catecholamines are either associated with sympathetic adrenal (pheochromocytoma) or nonadrenal (paraganglioma) tissue. Surgical removal of these tumors is always indicated to cure and prevent cardiovascular and other organ system complications associated with catecholamine excess. Some of these tumors have malignant potential as well. The diagnosis, localization and anatomical delineation of these tumors involve measurement of catecholamines and their metabolic end products in plasma and urine, (123)I-metaiodobenzylguanidine scintigraphy, computed tomography, and/or magnetic resonance imaging...
January 2017: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/28181385/hemodynamic-profile-and-behavioral-characteristics-during-induction-of-anesthesia-in-pediatric-patients-with-attention-deficit-hyperactivity-disorder
#5
Richard S Cartabuke, Joseph D Tobias, Julie Rice, Dmitry Tumin
AIM: There is no consensus regarding the administration of stimulant drugs preoperatively, particularly in pediatric patients diagnosed with ADHD. The primary objective of the current study was to assess differences in blood pressure and heart rate before and after induction of anesthesia between patients on chronic amphetamine or methylphenidate therapy who receive their normal dose preoperatively compared to patients in whom the prescribed medication was withheld. Secondary objectives were to assess the anxiety level during the induction of anesthesia and the effect of premedication with midazolam...
February 8, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28174025/effects-of-liposome-based-local-suppression-of-nerve-growth-factor-in-the-bladder-on-autonomic-dysreflexia-during-urinary-bladder-distention-in-rats-with-spinal-cord-injury
#6
Katsumi Kadekawa, Tsuyoshi Yoshizawa, Naoki Wada, Takahiro Shimizu, Tsuyoshi Majima, Pradeep Tyagi, William C de Groat, Kimio Sugaya, Naoki Yoshimura
PURPOSE: To examine (1) whether spinal cord injury (SCI) time-dependently increases the severity of autonomic dysreflexia (AD) and expression levels of bladder nerve growth factor (NGF) protein, and (2) whether local suppression of NGF in the bladder improves SCI-induced AD in rats. MATERIALS AND METHODS: SCI was produced by the transection of the T2/3 spinal cord in female Sprague-Dawley rats. At 4 or 8weeks after SCI, differences in the mean arterial blood pressure (ΔMAP) and heart rate (ΔMHR) during graded increases in intravesical pressure to 20, 40 and 60cm H2O from those before bladder distention and NGF protein levels in the bladder wall were evaluated in spinal intact and SCI rats under urethane anesthesia...
February 4, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28165304/effects-of-acepromazine-and-trazodone-on-anesthetic-induction-dose-of-propofol-and-cardiovascular-variables-in-dogs-undergoing-general-anesthesia-for-orthopedic-surgery
#7
Lindsey A Murphy, Michele Barletta, Lynelle F Graham, Lorna J Reichl, Margaret M Duxbury, Jane E Quandt
OBJECTIVE To compare the doses of propofol required to induce general anesthesia in dogs premedicated with acepromazine maleate or trazodone hydrochloride and compare the effects of these premedicants on cardiovascular variables in dogs anesthetized for orthopedic surgery. DESIGN Prospective, randomized study. ANIMALS 30 systemically healthy client-owned dogs. PROCEDURES 15 dogs received acepromazine (0.01 to 0.03 mg/kg [0.005 to 0.014 mg/lb], IM) 30 minutes before anesthetic induction and 15 received trazodone (5 mg/kg [2...
February 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28144270/a-clinical-trial-evaluating-the-laryngeal-mask-airway-supreme-in-obese-children-during-general-anesthesia
#8
Yue Tian, Xiu-Ying Wu, Lu Li, Ling Ma, Yun-Feng Li
INTRODUCTION: The laryngeal mask airway (LMA)-Supreme is a disposable double-lumen laryngeal mask airway that is widely used in clinical practice. However, its use in obese children has not been evaluated. The aim of this study was to determine whether the LMA-Supreme could perform equally as well as endotracheal intubation in obese children having a minor surgical procedure. MATERIAL AND METHODS: After ethical board approval, 100 obese male children receiving non-emergent appendectomy for chronic appendicitis or surgery to correct concealed penis were randomly divided into an endotracheal intubation group and an LMA-Supreme group...
February 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28108832/beat-by-beat-assessment-of-cardiac-afterload-using-descending-aortic-velocity-pressure-loop-during-general-anesthesia-a-pilot-study
#9
Fabrice Vallée, Arthur Le Gall, Jona Joachim, Olivier Passouant, Joaquim Matéo, Arnaud Mari, Sandrine Millasseau, Alexandre Mebazaa, Etienne Gayat
Continuous cardiac afterload evaluation could represent a useful tool during general anesthesia (GA) to titrate vasopressor effect. Using beat to beat descending aortic pressure(P)/flow velocity(U) loop obtained from esophageal Doppler and femoral pressure signals might allow to track afterload changes. Methods We defined three angles characterizing the PU loop (alpha, beta and Global After-Load Angle (GALA)). Augmentation index (AIx) and total arterial compliance (Ctot) were measured via radial tonometry. Peripheral Vascular Resistances (PVR) were also calculated...
January 20, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28107080/the-influence-of-a-combined-butorphanol-and-midazolam-premedication-on-anesthesia-in-psittacid-species
#10
Marie Kubiak, Louise Roach, Kevin Eatwell
Premedication is considered routine for domestic animal and human anesthesia but is rarely applied to avian patients, and few controlled studies exist to document effects of premedication in avian species. To determine the effects of a butorphanol and midazolam premedication on general anesthesia and quality of induction and recovery phases in psittacid species, 17 clinically healthy birds undergoing anesthesia were randomly allocated into either a premedicated or control group. Anesthetic parameters were subsequently compared...
December 2016: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28097415/anesthesia-practices-for-interventional-radiology-in-europe
#11
Alessandra Vari, Afshin Gangi
PURPOSE: The Cardiovascular and Interventional Radiological Society of Europe (CIRSE) prompted an initiative to frame the current European status of anesthetic practices for interventional radiology, in consideration of the current variability of IR suite settings, staffing and anesthetic practices reported in the literature and of the growing debate on sedation administered by non-anesthesiologists, in Europe. METHODS: Anonymous online survey available to all European CIRSE members to assess IR setting, demographics, peri-procedural care, anesthetic management, resources and staffing, pain management, data collection, safety, management of emergencies and personal opinions on the role CIRSE should have in promoting anesthetic care for interventional radiology...
January 17, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28094152/use-of-3d-printer-technology-to-facilitate-surgical-correction-of-a-complex-vascular-anomaly-with-esophageal-entrapment-in-a-dog
#12
A Dundie, G Hayes, P Scrivani, L Campoy, D Fletcher, K Ash, E Oxford, N S Moïse
A 10 week old female intact Staffordshire terrier was presented with a total of five congenital cardio-thoracic vascular anomalies consisting of a patent ductus arteriosus (PDA) with an aneurysmic dilation, pulmonic stenosis, persistent right aortic arch, aberrant left subclavian artery and persistent left cranial vena cava. These abnormalities were identified with a combination of echocardiogram and computed tomography angiography (CTA). The abnormalities were associated with esophageal entrapment, regurgitation, and volume overload of the left heart with left atrial and ventricular enlargement...
January 13, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28074825/goldenhar-syndrome-cardiac-anesthesiologist-s-perspective
#13
REVIEW
Minati Choudhury, Poonam Malhotra Kapoor
Goldenhar syndrome or oculo-auriculo-vertebral dysplasia was defined by Goldenhar in 1952 and redefined by Grolin et al. later. As the name denotes, children with this syndrome present with craniofacial and vertebral anomalies which increase the risk of airway compromise. Neonates and infants with this syndrome often have premature internal organs, low birth weight, and airway disorders. For this reason, safe anesthesia in such infants requires a complete knowledge regarding metabolism and side effects of the drugs...
January 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28072491/paradoxical-bradycardia-during-surgical-caudal-vena-cava-occlusion-in-an-anesthetized-dog
#14
Jennifer Davis, Anthea L Raisis, Hildegriet Haitjema, Eleanor A Drynan, Giselle L Hosgood
OBJECTIVE: To describe the anesthetic management of a dog undergoing caudal vena cava (CVC) occlusion during adrenalectomy, and to discuss a reflex bradycardia that was observed during the procedure. CASE SUMMARY: General anesthesia of a 10-year-old Rhodesian ridgeback for excision of an adrenal mass and associated CVC tumor thrombus was performed. The dog was premedicated with IV methadone and anesthesia was induced with IV alfaxalone and maintained with isoflurane in 100% oxygen...
January 10, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28070330/the-approximated-cardiovascular-reserve-index-complies-with-haemorrhage-related-hemodynamic-deterioration-pattern-a-swine-exsanguination-model
#15
Roy Nadler, Elon Glassberg, Itay E Gabbay, Linn Wagnert-Avraham, Gal Yaniv, David Kushnir, Arik Eisenkraft, Ben-Zion Bobrovsky, Uri Gabbay
BACKGROUND: To estimate the cardiovascular reserve we formulated the Cardiovascular Reserve Index (CVRI) based on physiological measurements. The aim of this study was to evaluate the pattern of CVRI in haemorrhage-related haemodynamic deterioration in an animal model simulating combat injury. METHODS: Data were collected retrospectively from a research database of swine exsanguination model in which serial physiological measurements were made under anesthesia in 12 swine of haemorrhagic injury and 5 controls...
February 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28070113/pharmacological-characterization-of-microminipig-as-a-model-to-assess-the-drug-induced-cardiovascular-responses-for-non-clinical-toxicity-and-or-safety-pharmacology-studies
#16
Hirofumi Yokoyama, Yuji Nakamura, Hiroyuki Saito, Yukitoshi Nagayama, Kiyotaka Hoshiai, Takeshi Wada, Hiroko Izumi-Nakaseko, Kentaro Ando, Yasuki Akie, Atsushi Sugiyama
We tried to establish the halothane-anesthetized microminipigs as an alternative animal model for non-clinical toxicity and/or safety pharmacology studies. In order to characterize the halothane-anesthetized microminipigs, we firstly clarified the effects of halothane anesthesia on their cardiovascular system (n = 5). Then, we examined the cardiovascular effects of dl-sotalol in doses of 0.1, 0.3 and 1 mg/kg, i.v. on the halothane-anesthetized microminipigs (n = 6). Induction of the halothane anesthesia by itself prolonged the QT interval as well as QTcF, suggesting that the halothane anesthesia can reduce the cardiac repolarization reserve in microminipigs like in dogs...
2017: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/28050987/glucose-levels-and-hemodynamic-changes-in-patients-submitted-to-routine-dental-extraction-under-local-anesthesia-with-and-without-adrenaline
#17
Sanjay Byakodi, Vivek Gurjar, Sushant Soni
INTRODUCTION: In maxillofacial surgery, the simplest procedure that we perform is dental extraction. However, this simple procedure is challenged by the patient's poor medical condition. We generally use local anesthesia in combination with adrenaline; however, as we come across patients with diabetes mellitus and cardiovascular diseases who seek dental extraction, we need to be doubly cautious while using adrenaline. In this study, we intend to compare the effects of local anesthesia with adrenaline and local anesthesia without adrenaline on hemodynamic changes (blood pressure and pulse rate) and random blood sugar levels...
1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28028980/normal-values-for-heart-electrophysiology-parameters-of-healthy-swine-determined-on-electrophysiology-study
#18
Agnieszka Noszczyk-Nowak, Alicja Cepiel, Adrian Janiszewski, Robert Pasławski, Jacek Gajek, Urszula Pasławska, Józef Nicpoń
BACKGROUND: Swine are a well-recognized animal model for human cardiovascular diseases. Despite the widespread use of porcine model in experimental electrophysiology, still no reference values for intracardiac electrical activity and conduction parameters determined during an invasive electrophysiology study (EPS) have been developed in this species thus far. OBJECTIVES: The aim of the study was to develop a set of normal values for intracardiac electrical activity and conduction parameters determined during an invasive EPS of swine...
November 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28011172/wake-sleep-and-cardiovascular-regulatory-changes-in-rats-made-obese-by-a-high-fat-diet
#19
Marco Luppi, Abed A Al-Jahmany, Flavia Del Vecchio, Matteo Cerri, Alessia Di Cristoforo, Timna Hitrec, Davide Martelli, Emanuele Perez, Giovanni Zamboni, Roberto Amici
Obesity is known to be associated with alterations in wake-sleep (WS) architecture and cardiovascular parameters. This study was aimed at assessing the possible influence of diet-induced obesity (DIO) on sleep homeostasis and on the WS state-dependent levels of arterial pressure (AP) and heart rate in the rat. Two groups of age-matched Sprague-Dawley rats were fed either a high-fat hypercaloric diet, leading to DIO, or a normocaloric standard diet (lean controls) for 8 weeks. While under general anesthesia, animals were implanted with instrumentation for the recording of electroencephalogram, electromyogram, arterial pressure, and deep brain temperature...
December 21, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/28006942/propofol-induced-mitochondrial-and-contractile-dysfunction-of-the-rat-ventricular-myocardium
#20
M Grundmanová, D Jarkovská, A Süß, Z Tůma, M Marková, Z Grundman, A El-Kadi, M Čedíková, M Štengl, J Kuncová
Propofol is a short-acting hypnotic agent used in human medicine for sedation and general anesthesia. Its administration can be associated with serious cardiovascular side-effects that include decrease in arterial blood pressure and cardiac output. The aim of the present study was to evaluate propofol effects on mitochondrial respiration, myocardial contractility and electrophysiology in the same samples isolated from the heart ventricles of adult rats. Mitochondrial oxygen consumption was measured in permeabilized samples dissected from free walls of both ventricles using high-resolution respirometry...
December 22, 2016: Physiological Research
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