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pre-anesthetic evaluation

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https://www.readbyqxmd.com/read/28430430/design-synthesis-and-evaluation-of-novel-2-6-disubstituted-phenol-derivatives-as-general-anesthetics
#1
Linlin Qin, Lei Ren, Songlin Wan, Guoliang Liu, Xinfeng Luo, Zhenhong Liu, Fangqiong Li, Yan Yu, Jianyu Liu, Yonggang Wei
A novel series of optically active 2,6-disubstituted alkylphenols with improved anesthetic profiles compared to widely used propofol were synthesized. The incorporation of the cyclopropyl group not only increased the steric effect but also introduced stereoselective effects over their anesthetic properties. Compounds 1, 2 and 6 were selected as potential candidates for further pre-clinical development including studies of their water-soluble prodrugs. Clinical studies of candidate compound 6 (Haisco HSK3486) as a general anesthetic are performed in Australia and China...
April 21, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28317612/hormonal-electrolytic-and-electrocardiographic-evaluations-in-bitches-with-eutocia-and-dystocia
#2
Carla Regina Barbieri Simões, Flávia Gardilin Vassalo, Maria Lúcia Gomes Lourenço, Fabiana Ferreira de Souza, Eunice Oba, Mateus José Sudano, Nereu Carlos Prestes
The objective of the study was to assess clinical alterations, electrocardiographic, hematological, biochemical, hemogasometric, electrolytic, and hormone plasma concentrations in bitches with eutocia and dystocia. Overall, 28 bitches (dystocia, n = 22 and eutocia, n = 6) were assessed. The evaluations were performed at 2 time points, M1 (1 hour prepartum-eutocia group and cesarean or clinical intervention-dystocia group) and M2 (postpartum-eutocia or dystocia group and anesthetic recovery-dystocia group). The main clinical finding was the hypothermia (mean: 36...
December 2016: Topics in Companion Animal Medicine
https://www.readbyqxmd.com/read/28298244/frailty-related-to-anesthesia-guided-by-the-index-bispectral-frail-study-study-protocol-for-a-randomized-controlled-trial
#3
Morgan Le Guen, Marie Herr, Antoine Bizard, Caroline Bichon, Nathalie Boichut, Thierry Chazot, Ngai Liu, Joel Ankri, Marc Fischler
BACKGROUND: Currently, patients older than 60 years of age represent 25% of the population and are at an increased risk during surgery. Therefore, reducing postoperative morbidity and mortality is a major concern in medical research and practice. Dependence on caregivers and cognitive impairment represent two major risk factors in the elderly, especially in frail patients after surgery under general anesthesia. In this context, continuous monitoring of the depth of anesthesia using a bispectral index (BIS) sensor may reduce the occurrence of impairments by gaining better control of the anesthetic depth...
March 16, 2017: Trials
https://www.readbyqxmd.com/read/28275227/halogenated-volatile-anesthetics-in-the-intensive-care-unit-current-knowledge-on-an-upcoming-practice
#4
Pascal L Langlois, Frederick D'Aragon, William Manzanares
The aim of this narrative review was to highlight key points of volatile anesthetics administration in the intensive care unit (ICU), including AnaConDa® and Mirus® devices characteristics and the reported findings on clinical outcomes in critically ill patients. Intravenous sedation in the ICU is associated with issues, such as over- and under-sedation. Halogenated compounds, which can be safely administered by inserting a device in any ICU ventilation circuit, have interesting pharmacodynamic and pharmacokinetic profiles for patients with multi-organ failure...
March 8, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28270098/the-effects-of-y-27632-on-pial-microvessels-during-global-brain-ischemia-and-reperfusion-in-rabbits
#5
Noriyuki Shintani, Tadahiko Ishiyama, Masakazu Kotoda, Nobumasa Asano, Daniel I Sessler, Takashi Matsukawa
BACKGROUND: Global brain ischemia-reperfusion during propofol anesthesia provokes persistent cerebral pial constriction. Constriction is likely mediated by Rho-kinase. Cerebral vasoconstriction possibly exacerbates ischemic brain injury. Because Y-27632 is a potent Rho-kinase inhibitor, it should be necessary to evaluate its effects on cerebral pial vessels during ischemia-reperfusion period. We therefore tested the hypotheses that Y-27632 dilates cerebral pial arterioles after the ischemia-reperfusion injury, and evaluated the time-course of cerebral pial arteriolar status after the ischemia-reperfusion...
March 7, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28268971/electrical-stimulation-of-the-saphenous-nerve-in-anesthetized-rats-a-novel-therapeutic-approach-to-treating-overactive-bladder
#6
Zainab Moazzam, Paul B Yoo
Posterior Tibial Nerve Stimulation (PTNS) is a minimally invasive yet effective therapy for treating overactive bladder (OAB) symptoms with electrical stimulations applied at 20 Hz coupled with amplitudes approximating the foot-twitch threshold (T). However, pre-clinical studies indicate that PTNS-evoked bladder reflexes require stimulation amplitudes exceeding 2T. The objective of this work was to evaluate the presence of secondary low-threshold sensory pathways in the hind-limb region that can be a potential target of activation during clinical PTNS set-up...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28259274/use-and-effectiveness-of-ethyl-chloride-for-hand-injections
#7
Orrin I Franko, Peter J Stern
PURPOSE: Limited literature supports using ethyl chloride topical spray as an anesthetic for hand injections whereas documented risks include frostbite, skin irritation, and inhalation toxicity. We hypothesize that ethyl chloride spray imparts no benefit to patients' perception of pain or anxiety for routine hand injections. METHODS: We first surveyed all members of the American Society for Surgery of the Hand to discern the prevalence of ethyl chloride use during routine injections...
March 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28238025/anesthetic-management-of-abdominal-radical-trachelectomy-for-uterine-cervical-cancer-during-pregnancy
#8
Jun Terukina, Misako Takamatsu, Takayuki Enomoto, Hiroshi Baba
Abdominal radical trachelectomy has been identified as a surgical option for fertility preservation in cervical cancer patients, particularly in pregnant women who strongly desire to continue their pregnancy. Since this procedure requires operating in the uterus, the hardness of the uterus can affect the ease of surgery. Generally, sevoflurane is used for anesthesia in non-obstetric surgery for pregnant women because uterine relaxation is advantageous for uterine blood flow maintenance. However, the use of sevoflurane during radical trachelectomy has not been thoroughly evaluated...
February 25, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28227180/electrical-stimulation-of-the-saphenous-nerve-in-anesthetized-rats-a-novel-therapeutic-approach-to-treating-overactive-bladder
#9
Zainab Moazzam, Paul B Yoo, Zainab Moazzam, Paul B Yoo, Paul B Yoo, Zainab Moazzam
Posterior Tibial Nerve Stimulation (PTNS) is a minimally invasive yet effective therapy for treating overactive bladder (OAB) symptoms with electrical stimulations applied at 20 Hz coupled with amplitudes approximating the foot-twitch threshold (T). However, pre-clinical studies indicate that PTNS-evoked bladder reflexes require stimulation amplitudes exceeding 2T. The objective of this work was to evaluate the presence of secondary low-threshold sensory pathways in the hind-limb region that can be a potential target of activation during clinical PTNS set-up...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28159317/novel-treatment-protocol-for-ameliorating-refractory-chronic-pain-in-patients-with-autosomal-dominant-polycystic-kidney-disease
#10
Niek F Casteleijn, Maatje D A van Gastel, Peter J Blankestijn, Joost P H Drenth, Rosa L de Jager, Anna M Leliveld, Ruud Stellema, Andreas P Wolff, Gerbrand J Groen, Ron T Gansevoort
Autosomal dominant polycystic kidney disease (ADPKD) patients can suffer from chronic pain that can be refractory to conventional treatment, resulting in a wish for nephrectomy. This study aimed to evaluate the effect of a multidisciplinary treatment protocol with sequential nerve blocks on pain relief in ADPKD patients with refractory chronic pain. As a first step a diagnostic, temporary celiac plexus block with local anesthetics was performed. If substantial pain relief was obtained, the assumption was that pain was relayed via the celiac plexus and major splanchnic nerves...
April 2017: Kidney International
https://www.readbyqxmd.com/read/28149801/bupivacaine-application-reduces-post-thyroidectomy-pain-cerrahpasa-experience
#11
Serkan Teksoz, Akif Enes Arikan, Selen Soylu, Safak Emre Erbabacan, Murat Ozcan, Yusuf Bukey
BACKGROUND: We aimed to evaluate the impact of bupivacaine administration into the surgical field after total thyroidectomy on post-operative pain and analgesic requirement with a double-blind, prospective, clinical and randomized study. METHODS: The study was performed between 2010 and 2011. Pain assessment was performed with the visual analog score (VAS). Patients were pre-operatively, randomly divided into two groups to receive either bupivacaine or saline. One group received a 10-mL of bupivacaine solution while the other group was treated with the same volume of 0...
December 2016: Gland Surgery
https://www.readbyqxmd.com/read/28110927/safety-of-remifentanil-in-transsphenoidal-surgery-a-single-center-analysis-of-540-patients
#12
David J Cote, William T Burke, Joseph P Castlen, Chih H King, Hasan A Zaidi, Timothy R Smith, Edward R Laws, Linda S Aglio
Although some studies have examined the efficacy and safety of remifentanil in patients undergoing neurosurgical procedures, none has examined its safety in transsphenoidal operations specifically. In this study, all transsphenoidal operations performed by a single author from 2008 to 2015 were retrospectively reviewed to evaluate the safety of remifentanil in a consecutive series of patients. During the study period, 540 transsphenoidal operations were identified. Of these, 443 (82.0%) patients received remifentanil intra-operatively; 97 (18...
April 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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
#13
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/28089921/penehyclidine-hydrochloride-prevents-anoxia-reoxygenation-injury-and-induces-h9c2-cardiomyocyte-apoptosis-via-a-mitochondrial-pathway
#14
Zhaoqi Wang, Duomao Lin, Liang Zhang, Wenjun Liu, Hongbao Tan, Jun Ma
Penehyclidine hydrochloride (PHC) is an anticholinergic drug that has been widely used in the clinic for years, evaluating for anesthetic premedication, anti-muscarinic, or improving microcirculation. However, very little is known about its protective effects against anoxia/reoxygenation (A/R) injury in myocardiocytes. The aim of our study was to investigate the protective effects of PHC pretreatment on A/R injury, as well as the underlying mechanisms involved. To investigate apoptosis, we used the cell viability assay, Annexin-V/PI assay, and lactate dehydrogenase (LDH) and creatine kinase (CK) activity measurements...
February 15, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28088107/gaas-laser-therapy-reestablishes-the-morphology-of-the-nmj-and-nachrs-after-injury-due-to-bupivacaine
#15
Cristiane Neves Alessi Pissulin, Paula Aiello Tomé de Souza Castro, Flávio Codina, Carina Guidi Pinto, Ivan Jose Vechetti-Junior, Selma Maria Michelin Matheus
BACKGROUND: Local anesthetics are used to relieve pre- and postoperative pain, acting on both sodium channels and nicotinic acetylcholine receptors (nAChR) at the neuromuscular junction (NMJ). Bupivacaine acts as a non-competitive antagonist and has limitations, such as myotoxicity, neurotoxicity, and inflammation. Low-level laser therapy (LLLT) has anti-inflammatory, regenerative, and analgesic effects. The aim of the present study was to evaluate the effects of a gallium arsenide laser (GaAs) on the morphology of the NMJ and nAChRs after application of bupivacaine in the sternomastoid muscle...
February 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28052215/volumetric-evaluation-of-different-obturation-techniques-in-primary-teeth-using-spiral-computed-tomography
#16
COMPARATIVE STUDY
N B Nagaveni, Sneha Yadav, P Poornima, Vv Subba Reddy, N M Roshan
BACKGROUND: Various obturation techniques have been evaluated for better filling of the root canals in primary teeth using different methods. Spiral Computed Tomography (SCT) is a new revolution in the pediatric endodontics for assessment of quality of the obturation from 3 dimensions. OBJECTIVES: To evaluate the efficiency of 5 different obturation methods in delivering the filling material into the canals of primary teeth using Spiral Computed Tomography scan...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28050702/selective-induction-of-il-1%C3%AE-after-a-brief-isoflurane-anesthetic-in-children-undergoing-mri-examination
#17
Emmett E Whitaker, Fievos L Christofi, Kristen M Quinn, Brianne Z Wiemann, Jason C Xia, Joseph D Tobias, Bruno Bissonnette
PURPOSE: To determine if isoflurane anesthesia without surgery causes systemic inflammation in children. Inflammation is targeted as responsible for the development of many neurologic pathologies. The effect will be evaluated by measuring serum cytokine levels before and after isoflurane anesthesia. The possible neurotoxic effect of anesthetic agents is a concern in pediatric anesthesia. Questions remain as to the true effects of anesthesia alone on systemic inflammation. The current study assesses systemic inflammatory response to general anesthesia in children not exposed to surgical stress...
January 3, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/27992001/factor-structure-and-psychometric-properties-of-the-dispositional-resilience-scale-among-brazilian-adult-patients
#18
João Paulo Consentino Solano, Eduardo Sawaya Botelho Bracher, Alexandre Faisal-Cury, Hazem Adel Ashmawi, Maria José Carvalho Carmona, Francisco Lotufo, Joaquim Edson Vieira
Objective: Verifying the psychometrics of a Brazilian version of the Dispositional Resilience Scale (DRS-15). Methods: Cross-cultural adaptation was done interviewing 65 adult patients. Validation was evaluated by application of the Lipp Brazilian Stress Symptoms Inventory (ISSL), Self-Report Questionnaire (SRQ), and other measures to 575 participants from the psychiatric ambulatories (for borderline personality, anxiety or post-traumatic stress disorders) and non-psychiatric ambulatories (chronic pain, pre-anesthetic consultation and companions for the latter)...
December 2016: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/27982268/utility-of-ultraportable-echocardiography-in-the-preoperative-evaluation-of-noncardiac-surgery
#19
Jean Allan Costa, Maria Lucia Pereira Almeida, Tereza Cristina Duque Estrada, Guilherme Lobosco Werneck, Alexandre Marins Rocha, Maria Luiza Garcia Rosa, Mario Luiz Ribeiro, Claudio Tinoco Mesquita
Background: The ultraportable echocardiogram machine, with relevant portability and easiness in performing diagnoses, when in experienced hands, may contribute to the reliability of preoperative evaluation in noncardiac surgeries. Objectives: To assess cardiac function parameters in patients aged older than 60 years, candidates of elective noncardiac surgeries, classified as ASA1 or ASA 2 according to surgical risk. Methods: A total of 211 patients referred for elective surgeries, without suspicion of previous heart diseases, were included in the study...
November 2016: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/27935781/the-neurotoxicity-of-general-anesthetic-drugs-emphasis-on-the-extremes-of-age
#20
Chuck Biddle, Vincent Ford
A substantial body of research suggests that anesthetic exposure to patients who are very young or very old may impair cognitive, behavioral, and emotional development or recovery. In lower animal models of pre- and postnatal age, anesthetic exposure may impact inflammation, synaptogenesis, neuronal apoptosis, and glial cell development. To date, research in humans is inconclusive regarding the long-term cognitive and behavioral sequelae of general anesthesia in the young child. In older adults, postoperative cognitive dysfunction and cognitive delirium are identified as markers of anesthetic neurotoxicity...
January 2017: Annual Review of Nursing Research
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