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drug-induced hypotension

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https://www.readbyqxmd.com/read/27898164/dexmedetomidine-reduces-catheter-related-bladder-discomfort-a-prospective-randomized-placebo-controlled-double-blind-study
#1
Yang Zhao Yun, Xu Jun Mei, Zhu Rong, Dai Ru Ping, Liu Lei
OBJECTIVE: To evaluate the efficacy of dexmedetomidine in preventing catheterrelated bladder discomfort (CRBD) in a postanesthesia care unit (PACU). METHODS: A total of 138 consecutive adult male patients, classified by the American Society of Anesthesiologists (ASA) as ASA class I and ASA class II, were scheduled for elective open upper-middle abdominal surgery. They were randomized into 2 groups, C and D, comprising 69 patients each. Group C was given a saline solution as placebo, and group D received dexmedetomidine...
December 2016: Puerto Rico Health Sciences Journal
https://www.readbyqxmd.com/read/27888135/antihypertensive-effects-of-androgens-in-conscious-spontaneously-hypertensive-rats
#2
Mercedes Perusquía, Nieves Herrera, Mercedes Ferrer, John N Stallone
Androgens are vasoactive steroids that induce acute vasodilation in a number of isolated vascular beds from different species, but the effects of these hormones on systemic blood pressure (BP) have been studied little. Although it has been reported that androgens exert systemic hypotensive effects through peripheral vasodilation in normotensive rats, there have not been any reports of systemic hypotensive effects of androgens in animals with hypertension. This study was designed to evaluate the acute effects of testosterone (TES) and its 5-reduced metabolites on systemic BP in hypertensive rats and to test the hypothesis that hypotestosteronemia may be involved in the pathogenesis of hypertension...
November 23, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/27843963/comparative-evaluation-between-two-methods-of-induced-hypotension-with-infusion-of-remifentanil-and-labetalol-during-sinus-endoscopy
#3
Parvin Sajedi, Ali Rahimian, Gholamreza Khalili
OBJECTIVE: This study aimed to compare two methods of controlled hypotension using labetalol and remifentanil in terms of capability to create controlled hypotension and to investigate the obtained complications, and satisfaction rate of surgeon and patient during functional endoscopic sinus surgery. METHODS: In this prospective clinical trial, 62 patients underwent endoscopic sinus surgery in Al-Zahra and Ayatollah Kashani Hospitals of Isfahan were divided into two groups: in the first group, 20 mg bolus dose of labetalol and then infusion of it, at a rate of 0...
October 2016: Journal of Research in Pharmacy Practice
https://www.readbyqxmd.com/read/27770114/the-effect-of-prophylactic-phenylephrine-on-systemic-hypotension-during-induction-of-anaesthesia-with-propofol-in-patients-over-55-years-old
#4
F Y Kwok, S Venugobal
BACKGROUND: Induction of anaesthesia with propofol is often associated with a significant decrease in arterial pressure, especially in the older population. The aim of this study is to determine the efficacy of phenylephrine in two different doses i.e. 100mcg and 200mcg, given during induction to counteract the anticipated hypotensive effect of propofol in older patients aged over 55 years. METHODS: Seventy-two ASA physical status I - II patients aged 55 years or older were randomly allocated to group 1 (received propofol mixed with normal saline), group 2 (propofol mixed with 100mcg of phenylephrine) or group 3 (propofol mixed with 200mcg of pheynylphrine)...
August 2016: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/27765361/aralia-elata-var-mandshurica-rupr-maxim-j-wen-an-overview-of-pharmacological-studies
#5
Alexander N Shikov, Olga N Pozharitskaya, Valery G Makarov
PURPOSE: Aralia elata var. mandshurica (Rupr. & Maxim.) J.Wen syn. A. mandshurica Rupr. & Maxim is evaluated for its medicinal application. The aim of this study is to analyze pharmacological studies on A. elata var. mandshurica published until December 2015. METHODS: The information regarding the chemistry, safety, effectiveness, and pharmacological and clinical effects of A. elata was systematically collected from the scientific literature through library catalogs; online services such as E-library...
November 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27752032/starvation-ketoacidosis-as-a-cause-of-unexplained-metabolic-acidosis-in-the-perioperative-period
#6
Monique Mostert, Anthony Bonavia
BACKGROUND Besides providing anesthesia for surgery, the anesthesiologist's role is to optimize the patient for surgery and for post-surgical recovery. This involves timely identification and treatment of medical comorbidities and abnormal laboratory values that could complicate the patient's perioperative course. There are several potential causes of anion and non-anion gap metabolic acidosis in surgical patients, most of which could profoundly affect a patient's surgical outcome. Thus, the presence of an acute acid-base disturbance requires a thorough workup, the results of which will influence the patient's anesthetic management...
October 18, 2016: American Journal of Case Reports
https://www.readbyqxmd.com/read/27747715/coma-after-quetiapine-fumarate-intentional-overdose-in-a-71-year-old-man-a-case-report
#7
S Gibiino, A Trappoli, B Balzarro, A R Atti, D De Ronchi
A 71-year-old man developed coma with severe respiratory failure, hypotension, and tachycardia induced by the intentional ingestion of quetiapine fumarate extended release (XR) 20 g. At the time, he had been treated for bipolar depression with venlafaxine 75 mg/day, lamotrigine 100 mg/day, pregabalin 75 mg/day, and quetiapine XR 400 mg/day for approximately 1 year. Comorbidities were hypertension treated with metoprolol, diabetes mellitus type 2 treated with metformin, and benign prostatic hyperplasia treated with silodosin...
December 2015: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/27730767/cardiovascular-autonomic-dysfunction-in-patients-with-drug-induced-parkinsonism
#8
Joong Seok Kim, Dong Woo Ryu, Ju Hee Oh, Yang Hyun Lee, Sung Jin Park, Kipyung Jeon, Jong Yun Lee, Seong Hee Ho, Jungmin So, Jin Hee Im, Kwang Soo Lee
BACKGROUND AND PURPOSE: Recent studies have shown that several nonmotor symptoms differ between Parkinson's disease (PD) and drug-induced parkinsonism (DIP). However, there have been no reports on cardiovascular autonomic function in DIP, and so this study investigated whether cardiovascular autonomic function differs between PD and DIP patients. METHODS: This study consecutively enrolled 20 DIP patients, 99 drug-naïve PD patients, and 25 age-matched healthy controls who underwent head-up tilt-table testing and 24-h ambulatory blood pressure monitoring...
October 7, 2016: Journal of Clinical Neurology
https://www.readbyqxmd.com/read/27678094/genomic-and-nongenomic-effects-of-mifepristone-at-the-cardiovascular-level-a-review
#9
Joana Feiteiro, Melissa Mariana, Ignacio Verde, Elisa Cairrão
Mifepristone (RU 486) is a compound that is structurally related to steroid hormones, which is derived from the estrane progestins. This compound strongly binds the progesterone and glucocorticoid receptor and, to a lesser extent, the androgen receptor. This compound has its effects through different signaling pathways, related to genomic and nongenomic effects. The genomic effect involves the activation or blockage of nuclear or intracellular receptor, that in this case the progesterone, glucocorticoid, and androgen receptors...
September 27, 2016: Reproductive Sciences
https://www.readbyqxmd.com/read/27672457/acute-liver-and-renal-failure-a-rare-adverse-effect-exclusive-to-intravenous-form-of-amiodarone
#10
Robin Paudel, Prerna Dogra, Saurav Suman, Saurav Acharya, Jyoti Matta
Amiodarone is an antiarrhythmic drug which is highly effective against a wide spectrum of ventricular tachyarrhythmias making it irreplaceable in certain group of patients. We report an unusual case of acute liver and renal failure within 24 hours of initiation of intravenous (IV) amiodarone which resolved after stopping the medication. The mechanism of acute liver and renal toxicity is not clearly known but is believed to be secondary to amiodarone induced (relative) hypotension, idiosyncratic reaction to the drug, and toxicity of the vector that carries the medication, polysorbate-80...
2016: Case Reports in Critical Care
https://www.readbyqxmd.com/read/27661616/procainamide-inhibits-dna-methylation-and-alleviates-multiple-organ-dysfunction-in-rats-with-endotoxic-shock
#11
Chih-Chin Shih, Mei-Hui Liao, Tsan-Seng Hsiao, Hiong-Ping Hii, Ching-Hui Shen, Shiu-Jen Chen, Shuk-Man Ka, Yung-Lung Chang, Chin-Chen Wu
Excessive inflammatory and oxidative stress lead to circulatory failure, multiple organ dysfunction, and high mortality in patients with sepsis. Microbial infection-induced DNA hypermethylation is associated with the augmentation of inflammation and oxidative stress. In our previous study, the antiarrhythmic drug procainamide inhibits the expression of DNA methyltransferase 1 (DNMT1) and diminishes IL-6 levels in rats with rhabdomyolysis. Thus, we further evaluated the effects of procainamide on the development of circulatory failure and multiple organ dysfunction in rats with endotoxic shock...
2016: PloS One
https://www.readbyqxmd.com/read/27660584/postinduction-paced-pulseless-electrical-activity-in-a-patient-with-a-history-of-oropharyngeal-instrumentation-induced-reflex-circulatory-collapse
#12
Ryan J Kline, Ky Pham, Carmen L Labrie-Brown, Ken Mancuso, Paul LeLorier, James Riopelle, Alan David Kaye
BACKGROUND: Reflex hypotension and bradycardia have been reported to occur following administration of several drugs associated with administration of anesthesia and also following a variety of procedural stimuli. CASE REPORT: A 54-year-old postmenopausal female with a history of asystole associated with sedated upper gastrointestinal endoscopy and post-anesthetic-induction tracheal intubation received advanced cardiac resuscitation after insertion of a temporary transvenous pacemaker failed to prevent pulseless electrical activity...
2016: Ochsner Journal
https://www.readbyqxmd.com/read/27642570/from-pre-existing-renal-failure-to-perioperative-renal-protection-the-anesthesiologist-s-dilemmas
#13
REVIEW
Rudin Domi, Gentian Huti, Hektor Sula, Nehat Baftiu, Myzafer Kaci, Artan Bodeci, Albert Pesha
CONTEXT: Pre-existing renal dysfunction presents specific features that anesthesiologists must deal with. Anesthesia and renal function are connected and can interfere with each other. Induced hypotension anesthesia and the toxic effects of anesthetic drugs can further deteriorate renal function. EVIDENCE ACQUISITION: Decreased renal function can prolong anesthetic drug effects by decreased elimination of these drugs. Anesthesia can deteriorate renal function and decreased renal function can interfere with drug elimination leading to their prolonged effect...
June 2016: Anesthesiology and Pain Medicine
https://www.readbyqxmd.com/read/27556272/an-update-on-intradialytic-cardiac-dysfunction
#14
Aghogho Odudu, Christopher W McIntyre
Cardiac dysfunction is a key factor in the high morbidity and mortality rates seen in hemodialysis (HD) patients. Much of the dysfunction is manifest as adverse changes in cardiac and vascular structure prior to commencing dialysis. This adverse vascular remodeling arises as a dysregulation between pro- and antiproliferative signaling pathways in response to hemodynamic and nonhemodynamic factors. The HD procedure itself further promotes cardiomyopathy by inducing hypotension and episodic regional cardiac ischemia that precedes global dysfunction, fibrosis, worsening symptoms, and increased mortality...
November 2016: Seminars in Dialysis
https://www.readbyqxmd.com/read/27555178/comparision-of-clonidine-and-dexmedetomidine-for-attenuation-of-laryngoscopy-and-intubation-response-a-randomized-controlled-trial
#15
Aanchal Kakkar, Asha Tyagi, Nazish Nabi, A K Sethi, U C Verma
BACKGROUND: Clonidine and dexmedetomidine are alpha-2 agonists with beneficial effect on the hemodynamic response to laryngoscopy and intubation. The present study was designed to evaluate and compare the efficacy of intravenous clonidine 1 μg/kg, and dexmedetomidine in doses of 0.5 μg/kg and 1 μg/kg, for blunting the hemodynamic changes during laryngoscopy and intubation. METHOD: Adult patients of ASA physical grade I/II scheduled for surgery under general anaesthesia with endotracheal tube were randomly divided into three groups using a computer generated random number table, each group receiving one of the following drugs prior to induction of anaesthesia, by a blinded anaesthesiologist in a volume of 100 mL infused intravenously over 20 minutes: clonidine 1 μg/kg, or dexmedetomidine 0...
September 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27510560/prolonged-drug-induced-myoclonus-is-it-related-to-palonosetron
#16
Sook Hui Chaw, Lucy Chan, Pui Kuan Lee, Jaseemuddeen A Bakar, Raveenthiran Rasiah, Li Lian Foo
We report a case of drug-induced myoclonus possibly related to palonosetron, a second-generation 5-hydroxytryptamine-3 receptor antagonist which was administered as a prophylaxis for postoperative nausea and vomiting in a 28-year-old female. The recurrent episodes of myoclonus jerk involving the head, neck and shoulder persisted for a period of 4 days. The patient also exhibited an episode of severe bradycardia leading to hypotension 7 h after surgery. To our knowledge, this is the first report presenting these adverse events potentially associated with the use of palonosetron...
August 10, 2016: Journal of Anesthesia
https://www.readbyqxmd.com/read/27501853/pilot-trial-of-intravenous-lipid-emulsion-treatment-for-severe-nifedipine-induced-shock
#17
Christine M Murphy, Cliff Williams, Michael E Quinn, Brian Nicholson, Thomas Shoe, Michael C Beuhler, William P Kerns
Animal studies and human case reports show promise in using lipid rescue to treat refractory calcium channel antagonist toxicity. However, the majority of research and clinical experience has focused on non-dihydropyridine agents. Thus, we sought to investigate the value of lipid emulsion (ILE) therapy for dihydropyridine-induced shock. This IACUC-approved study utilized seven swine that were sedated with alpha-chloralose, mechanically ventilated, and instrumented for drug delivery and hemodynamic measures...
December 2016: Journal of Medical Toxicology: Official Journal of the American College of Medical Toxicology
https://www.readbyqxmd.com/read/27486175/phase-ii-study-of-alemtuzumab-campath-1%C3%A2-in-patients-with-htlv-1-associated-adult-t-cell-leukemia-lymphoma
#18
Kamal Sharma, John Janik, Deidre O'Mahony, Donn Stewart, Stefania Pittaluga, Maryalice Stetler-Stevenson, Elaine S Jaffe, Mark Raffeld, Thomas Fleisher, Carolyn Lee, Seth M Steinberg, Thomas A Waldmann, John C Morris
PURPOSE: Therapeutic regimens for ATL are limited with unsatisfactory results, thereby warranting development of novel therapies. This study investigated antitumor activity and toxicity of alemtuzumab with regard to response, duration of response, progression free survival, and overall survival in patients with human T-cell lymphotropic virus-1 (HTLV-1)-associated adult T-cell leukemia/lymphoma (ATL). EXPERIMENTAL DESIGN: Twenty-nine patients with chronic, acute, and lymphomatous types of ATL were enrolled in a single institution, nonrandomized, open-label Phase II trial wherein patients received intravenous alemtuzumab 30 mg three times weekly for a maximum of 12 weeks...
August 2, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27414285/a-conscious-rat-model-involving-bradycardia-and-hypotension-after-oral-administration-a-toxicokinetical-study-of-aconitine
#19
Panpan Zhang, Dezhi Kong, Qian Du, Jing Zhao, Qing Li, Jianghua Zhang, Tonghui Li, Leiming Ren
1. A model of aconitine-induced bradycardia and hypotension, which is similar to aconitine poisoning in humans, was constructed in conscious rats by oral administration. 2. Blood pressure (BP) and heart rate (HR) of Sprague-Dawley rats were measured using a volume pressure recording (VPR) system. The pharmacokinetics of toxic doses of aconitine and its metabolites were analyzed using UPLC-MS/MS. 3. The HR was significantly decreased by 29% at 2 h after oral administration of 200 μg/kg aconitine. When the dose was increased to 400 μg/kg, systolic BP and diastolic BP were significantly decreased by 11% and 12% at 2 h after the administration, except when bradycardia occurred at 2 h and 4 h...
July 14, 2016: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/27400970/prospectives-of-antihypertensive-nano-ceuticals-as-alternative-therapeutics
#20
Taskeen Niaz, Zeeshan Hafeez, Muhammad Imran
Global death rate due to cardiovascular diseases (CVDs) is highest as compared to other ailments. Principal risk factor associated with CVDs is hypertension. Major classes of current antihypertensive (AHT) therapies include angiotensin converting enzyme inhibitors (ACEI), angiotensin receptor blockers (ARBs) and calcium channel blockers (CCBs). All these antihypertensive therapeutic drugs have low oral bioavailability and can induce upper respiratory tract abstraction, angioedema, reflex tachycardia and extreme hypotensive effect after oral administration which can cause lethal effects in patients with heart diseases...
July 11, 2016: Current Drug Targets
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