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Ondansetron

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https://www.readbyqxmd.com/read/29141182/optogenetic-activation-of-5-ht-neurons-in-the-dorsal-raphe-suppresses-seizure-induced-respiratory-arrest-and-produces-anticonvulsant-effect-in-the-dba-1-mouse-sudep-model
#1
Honghai Zhang, Haiting Zhao, Chang Zeng, Christa Van Dort, Carl L Faingold, Norman E Taylor, Ken Solt, Hua-Jun Feng
Sudden unexpected death in epilepsy (SUDEP) is a devastating epilepsy complication. Seizure-induced respiratory arrest (S-IRA) occurs in many witnessed SUDEP patients and animal models as an initiating event leading to death. Thus, understanding the mechanisms underlying S-IRA will advance the development of preventive strategies against SUDEP. Serotonin (5-HT) is an important modulator for many vital functions, including respiration and arousal, and a deficiency of 5-HT signaling is strongly implicated in S-IRA in animal models, including the DBA/1 mouse...
November 12, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/29135900/ondansetron-prescription-for-home-use-in-a-pediatric-emergency-department
#2
James M Gray, Jaya D Maewal, Scott A Lunos, Ronald A Furnival, Marissa A Hendrickson
OBJECTIVES: Ondansetron has been shown to decrease admission rates and the need for intravenous fluids among pediatric emergency department (ED) patients with acute gastroenteritis, but there is limited evidence regarding its use after ED discharge. This study describes prescribing patterns for ondansetron and assesses the effects of ondansetron home prescription on rate of return. METHODS: Data were gathered from the electronic health record on 2 separate but overlapping groups of patients seen in a pediatric ED from 2012 to 2014...
November 14, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29116968/antiemetic-prophylaxis-as-a-marker-of-health-care-disparities-in-the-national-anesthesia-clinical-outcomes-registry
#3
Michael H Andreae, Jonah S Gabry, Ben Goodrich, Robert S White, Charles Hall
BACKGROUND: US health care disparities persist despite repeated countermeasures. Research identified race, ethnicity, gender, and socioeconomic status as factors, mediated through individual provider and/or systemic biases; little research exists in anesthesiology. We investigated antiemetic prophylaxis as a surrogate marker for anesthesia quality by individual providers because antiemetics are universally available, indicated contingent on patient characteristics (gender, age, etc), but independent of comorbidities and not yet impacted by regulatory or financial constraints...
November 7, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29116559/perioperative-antiemetic-therapy-for-fast-track-laparoscopic-bariatric-surgery
#4
Olumuyiwa A Bamgbade, Oluwafemi Oluwole, Rong R Khaw
BACKGROUND: Postoperative nausea and vomiting (PONV) is problematic in bariatric surgery patients and has negative impacts on perioperative outcome. Antiemetic prophylaxis may reduce PONV. Perioperative antiemetic prophylaxis or therapy is crucial and may enhance fast-track bariatric surgery. This study examined the impact of intraoperative multimodal antiemetic prophylaxis on fast-track bariatric surgery. METHODS: This prospective observational clinical study explored the perioperative data of 400 consecutive laparoscopic bariatric surgery patients, over a 6-year period...
November 7, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/29115898/augmented-reversal-of-cisplatin-induced-delayed-gastric-emptying-by-amla-emblica-officinalis-fruit-extract-in-sprague-dawley-rats
#5
Asad Ahmad, Mohammad Khushtar, Ranjan Kumar, Badruddeen, Ambreena Riyaz, Mohammad Irfan Khan, Azizur Rahman
Despite the availability of effective antiemetics, control of acute and delayed chemotherapy-induced nausea and vomiting (CINV) is often suboptimal and there is need of an inexpensive and safer alternative. Thus, this study was designed to evaluate the effect of Emblica officinalis Gaertn (Euphorbiaceae) fruit extract (EEEO) on cisplatin-induced delayed gastric emptying in Sprague-Dawley rats so that Emblica officinalis can be clarified for its application in CINV as a potential candidate. Groups I, II, III, IV, and V rats were pretreated orally with 1% carboxymethyl cellulose (CMC, 1 mL/kg), 1% CMC (1 mL/kg), EEEO (250 mg/kg), EEEO (500 mg/kg), and ondansetron (3 mg/kg), respectively, for 5 consecutive days...
November 8, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/29109936/a-study-of-harmful-drug-drug-interactions-due-to-polypharmacy-in-hospitalized-patients-in-goa-medical-college
#6
Akshay Khandeparkar, Padmanabh V Rataboli
Introduction: Concomitant use of multiple drugs is often indicated to manage comorbid conditions and enhance efficacy. Such concomitant use of multiple drugs (five or more drugs) has been defined as "polypharmacy." Polypharmacy has been associated with adverse consequences such as greater healthcare costs, increased risk of adverse drug events, drug-drug interactions (DDIs), medication nonadherence, reduced functional capacity, and multiple geriatric syndromes. This study evaluated number of potential harmful DDIs due to polypharmacy...
October 2017: Perspectives in Clinical Research
https://www.readbyqxmd.com/read/29104045/5-ht2a-receptor-is-the-predominant-receptor-mediating-contraction-of-the-isolated-porcine-distal-ureter-to-5-ht-in-young-and-old-animals
#7
Iris Lim, Russ Chess-Williams, Donna Sellers
Isolated ureteral strips develop spontaneous phasic contractile activity which is enhanced by 5-hydroytryptamine (5-HT). The aim of this study was to identify the receptor subtype mediating these responses and to determine whether responses to 5-HT change with age. The frequency of contractions and the overall contractile activity (measured as the area under the curve, AUC) were recorded in strips of porcine distal ureter isolated from young (3 months) and old (2 years) pigs. Responses to 5-HT were examined in the absence and presence of selective 5-HT receptor subtype antagonists...
November 7, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29102099/white-lipped-tree-viper-cryptelytrops-albolabris-envenomation-in-an-american-viper-keeper
#8
Spencer Greene, Laura Ann Galdamez, Richard Tomasheski
BACKGROUND: Snakebites are common in many regions of the United States. Bites from exotic species, however, are rare. The white-lipped tree viper, Cryptelytrops (formerly Trimeresurus) albolabris, is a pit viper native to Southeast Asia. Bites are common in countries such as Myanmar, India, Thailand, Indonesia, and China. In this report, we describe an envenomation in an American viper keeper. CASE REPORT: A healthy 28-year-old right-handed man who collects venomous snakes experienced a bite to the distal left thumb from a neonatal C...
October 25, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29099060/clinical-pharmacogenetics-of-cytochrome-p450-associated-drugs-in-children
#9
Ida Aka, Christiana J Bernal, Robert Carroll, Angela Maxwell-Horn, Kazeem A Oshikoya, Sara L Van Driest
Cytochrome P450 (CYP) enzymes are commonly involved in drug metabolism, and genetic variation in the genes encoding CYPs are associated with variable drug response. While genotype-guided therapy has been clinically implemented in adults, these associations are less well established for pediatric patients. In order to understand the frequency of pediatric exposures to drugs with known CYP interactions, we compiled all actionable drug-CYP interactions with a high level of evidence using Clinical Pharmacogenomic Implementation Consortium (CPIC) data and surveyed 10 years of electronic health records (EHR) data for the number of children exposed to CYP-associated drugs...
November 2, 2017: Journal of Personalized Medicine
https://www.readbyqxmd.com/read/29091968/computational-and-biological-evidences-on-the-serotonergic-involvement-of-setacn-antidepressant-like-effect-in-mice
#10
Mariana G Fronza, Lucimar M Pinto Brod, Angela Maria Casaril, Manoela Sacramento, Diego Alves, Lucielli Savegnago
A series of phenylselanyl-1H-1,2,3-triazole-4-carbonitriles with different substituents were screened for their binding affinity with serotonin transporter (SERT) and dopamine transporter (DAT) by docking molecular. 5-(4methoxyphenyl)-1-(2-(phenylselanyl)phenyl)-1H-1,2,3-triazole-4-carbonitrile (SeTACN) exhibited the best conformation with SERT even higher than fluoxetine and serotonin, suggesting a competitive inhibition. SeTACN demonstrated additional affinity to other serotonergic receptors involved in antidepressant effects: 5HT1a, 5HT2a and 5HT3...
2017: PloS One
https://www.readbyqxmd.com/read/29077725/ondansetron-treatment-reduces-rotavirus-symptoms-a-randomized-double-blinded-placebo-controlled-trial
#11
Marie Hagbom, Daniel Novak, Malin Ekström, Younis Khalid, Maria Andersson, Magnus Lindh, Johan Nordgren, Lennart Svensson
BACKGROUND: Rotavirus and norovirus cause acute gastroenteritis with severe diarrhoea and vomiting, symptoms that may lead to severe dehydration and death. The objective of this randomized double-blinded placebo-controlled study was to investigate whether ondansetron, a serotonin receptor antagonist could attenuate rotavirus- and norovirus-induced vomiting and diarrhoea, which would facilitate oral rehydration and possibly accelerate recovery and reduce need for hospitalization. METHODS: Children with acute gastroenteritis, aged 6 months to 16 years where enrolled (n = 104) and randomized to one single oral dose (0...
2017: PloS One
https://www.readbyqxmd.com/read/29057193/long-qt-syndrome-unveiled-by-a-fatal-combination-of-medications-and-electrolyte-abnormalities
#12
Pooja Sethi, Jennifer Treece, Vandana Pai, Chidinma Onweni
Long QT syndrome (LQTS) can present with syncope and seizure-like activity in the setting of torsades de pointes (TdP) with hemodynamic instability. Electrolyte abnormalities and medications can predispose to TdP in the setting of latent LQTS. An implantable cardioverter defibrillator (ICD) is needed if patients with TdP continue to be symptomatic despite medical treatment. We report a case of a patient who presented with seizures and was found to have prolonged corrected QT interval (QTc). During her admission, she was treated with ondansetron...
August 18, 2017: Curēus
https://www.readbyqxmd.com/read/29046773/dexamethasone-alone-versus-in-combination-with-intra-operative-super-hydration-for-postoperative-nausea-and-vomiting-prophylaxis-in-female-patients-undergoing-laparoscopic-cholecystectomy-a-randomized-clinical-trial
#13
Eman A Ismail, Mohamed H Bakri, Sayed Kaoud Abd-Elshafy
BACKGROUND: Dexamethasone has a prophylactic effect on postoperative nausea and vomiting (PONV) and perioperative hydration is believed to play a role in PONV prophylaxis. This study was performed to examine the combined effects of pre-induction dexamethasone plus super-hydration on PONV and pain following laparoscopic cholecystectomy (LC). METHODS: A total of 100 female patients undergoing LC were enrolled and randomized equally into two groups. Group DF received 5 mg dexamethasone (pre-induction) plus 30 ml/kg Ringer's lactate (intraoperative) and group D received 5 mg dexamethasone (pre-induction) alone...
October 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/29040247/use-of-ondansetron-for-vomiting-after-head-trauma-does-it-mask-clinically-significant-traumatic-brain-injury
#14
Israel Green-Hopkins, Michael C Monuteaux, Lois Lee, Lise Nigrovic, Rebekah Mannix, Sara Schutzman
OBJECTIVES: We describe ondansetron use in children with head injury evaluated in pediatric emergency departments and its association with return visits and late diagnoses of intracranial injuries requiring intervention. METHODS: Children ages 6 months to 18 years discharged without neuroimaging from 35 pediatric emergency departments with a diagnosis of head injury from 2009 to 2013 were identified retrospectively from the Pediatric Health Information System. We evaluated the rates of ondansetron use during the study period and of the association of ondansetron treatment with the diagnosis of intracranial injury, skull fracture, and return visits within 72 hours requiring admission or operative intervention...
October 16, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29033720/reducing-by-50-the-incidence-of-maternal-hypotension-during-elective-caesarean-delivery-under-spinal-anesthesia-effect-of-prophylactic-ondansetron-and-or-continuous-infusion-of-phenylephrine-a-double-blind-randomized-placebo-controlled-trial
#15
Jose Ramon Ortiz-Gómez, Francisco Javier Palacio-Abizanda, Francisco Morillas-Ramirez, Inocencia Fornet-Ruiz, Ana Lorenzo-Jiménez, Maria Lourdes Bermejo-Albares
BACKGROUND: Prophylactic administrations of ondansetron or phenylephrine have been reported to provide a protective effect against hypotension in women undergoing cesarean delivery under spinal anesthesia (SA). The main hypothesis is that ondansetron improves the hemodynamic response, especially combined with phenylephrine infusion. METHODS: This prospective, double-blind, randomized, placebo-controlled study included 265 healthy pregnant women scheduled for elective cesarean delivery under SA...
October 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/29033296/a-comparison-of-headache-treatment-in-the-emergency-department-prochlorperazine-versus%C3%A2-ketamine
#16
Tony Zitek, Melanie Gates, Christopher Pitotti, Alexandria Bartlett, Jayme Patel, Aryan Rahbar, Wesley Forred, Joseph S Sontgerath, Jill M Clark
STUDY OBJECTIVE: Intravenous subdissociative-dose ketamine has been shown to be effective for pain management, but has not been specifically studied for headaches in the emergency department (ED). For this reason, we designed a study to compare standard treatment (prochlorperazine) with ketamine in patients with benign headaches in the ED. METHODS: This study was a multicenter, double-blind, randomized, controlled trial with a convenience sample of patients presenting to the ED with benign headaches...
October 13, 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/29031010/evaluation-of-aprepitant-for-acute-chemotherapy-induced-nausea-and-vomiting-in-children-and-adolescents-with-acute-lymphoblastic-leukemia-receiving-high-dose-methotrexate
#17
Femi Felix-Ukwu, Kate Reichert, M Brooke Bernhardt, Eric S Schafer, Amanda Berger
BACKGROUND: Chemotherapy-induced nausea and vomiting (CINV) negatively impacts patients' quality of life. The emetogenicity of high-dose methotrexate in children and adolescents with cancer is incompletely characterized. At our institution, a number of patients with acute lymphoblastic leukemia (ALL) have received aprepitant with courses of high-dose methotrexate after poor CINV control with prior courses. PROCEDURE: We conducted a retrospective cohort analysis on patients with ALL who received methotrexate 5 g/m(2) /dose with and without concomitant aprepitant at Texas...
October 14, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29029798/effect-of-intravenous-ondansetron-on-qtc-interval-in-children-with-gastroenteritis
#18
Robert J Hoffman, Khalid Alansari
BACKGROUND: The potential for ondansetron to cause QT prolongation and fatal dysrhythmia is well-reported, including a 2011 FDA report on the topic. Few clinical trials evaluating this phenomenon in the ED setting exist, and only one is pediatric. OBJECTIVE: We have sought to determine the effect of a standardized dose of intravenous ondansetron on the QTc duration of children under 14years of age treated for gastroenteritis-associated vomiting in a pediatric ED...
October 4, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29027194/predictive-performance-of-physiologically-based-pharmacokinetic-pbpk-modeling-of-drugs-extensively-metabolized-by-major-cytochrome-p450s-in-children
#19
Wangda Zhou, Trevor N Johnson, Khanh H Bui, S Y Amy Cheung, Jianguo Li, Hongmei Xu, Nidal Al-Huniti, Diansong Zhou
The accuracy of physiologically-based pharmacokinetic (PBPK) model prediction in children, especially those younger than 2 years old has not been systematically evaluated. The aim of this study was to characterize the pediatric predictive performance of the PBPK approach for ten drugs extensively metabolized by CYP1A2 (theophylline), CYP2C8 (desloratidine, montelukast), CYP2C9 (diclofenac), CYP2C19 (esomeprazole, lansoprazole), CYP2D6 (tramadol) and CYP3A4 (itraconazole, ondansetron, sufentanil). Model performance in children was evaluated by comparing simulated plasma concentration-time profiles with observed clinical results for each drug and age group...
October 13, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28987314/use-of-prophylactic-ondansetron-with-intravenous-opioids-in-emergency-department-patients-a-prospective-observational-pilot-study
#20
Mark A Culver, Emily C Richards, Daniel H Jarrell, Christopher J Edwards
BACKGROUND: The current literature suggests that the prophylactic use of antiemetics is ineffective at preventing nausea or vomiting caused by opioids in the emergency department (ED). While there is no data evaluating ondansetron's efficacy for preventing opioid-induced nausea and vomiting, this practice remains common despite a lack of supporting evidence. OBJECTIVES: This study aimed to identify if prophylactic ondansetron administered with intravenous (IV) opioids prevents opioid-induced nausea or vomiting...
November 2017: Journal of Emergency Medicine
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