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ketamine blood pressure

Chikao Miyazaki, Mao Takahashi, Kazuhiro Shimizu, Tatsuo Chiba, Takenori Morisita, Tomoyuki Yamamoto, Nobuo Sugo, Akira Takahara, Kohji Shirai
OBJECTIVE: Cardio ankle vascular index (CAVI) is reflecting stiffness of the arterial tree from the origin of aorta to the ankles. We observed elevated CAVI in patients who suffered from apoplexy attack. To clarify the role and the mechanism by which arterial stiffness elevated just after apoplexy attack, the effect of enhanced intracranial pressure (ICP) by injecting saline into the cisterna magna of the rabbit on blood pressure, CAVI and cervical blood flow, were studied. Furthermore the role of sympathetic nerve was studied...
September 2016: Journal of Hypertension
Yusuke Sano, Shogo Ito, Mamoru Yoneda, Kai Nagasawa, Natsumi Matsuura, Yuichiro Yamada, Ayako Uchinaka, Yasuko K Bando, Toyoaki Murohara, Kohzo Nagata
Anesthesia can affect respiratory, circulatory, and endocrine systems but is necessary for certain experimental procedures such as echocardiography and blood sampling in small animals. We have now investigated the effects of four types of anesthesia-pentobarbital (PENT), ketamine-xylazine (K/X), and low- or high-dose isoflurane (ISO)-on hemodynamics, cardiac function, and glucose and lipid metabolism in Sprague-Dawley rats. Aortic pressure, heart rate, and echocardiographic parameters were measured at various time points up to 45 min after the induction of anesthesia, and blood was then collected for measurement of parameters of glucose and lipid metabolism...
September 30, 2016: American Journal of Physiology. Heart and Circulatory Physiology
I Schulze, E M Poos, H Meyer, A K List, S B R Kaestner, J Rehage
The aim of this study was to examine the effects of preoperative carprofen on the cardiorespiratory, hormonal and metabolic stress response during umbilical surgery under isoflurane anaesthesia combined with local anaesthesia, in calves. A randomised, blinded experimental study was conducted in 24 calves. Carprofen (n = 12; 1.4 mg/kg) or physiological saline solution (controls; n = 12) was administered 1 h prior to surgery. Anaesthesia was induced with xylazine (0.1 mg/kg, IM) and, after the onset of sedation (i...
October 2016: Veterinary Journal
Ali Solhpour, Alireza Jafari, Masoud Hashemi, Behnam Hosseini, Sajad Razavi, Gholamreza Mohseni, Maryam Vosoughian, Faranak Behnaz, Reza Amin Nejad, Mohamad Amin Pourhoseingholi, Fereshteh Soltani
STUDY OBJECTIVES: The aim of this study is to compare the efficacy of combination of meperidine and dexamethasone with that of placebo, meperidine alone, and the combination of ketamine and midazolam in preventing shivering during spinal anesthesia. DESIGN: This is a prospective, placebo-controlled study. SETTING: The setting is at an operating room of a university-based teaching hospital. PATIENTS: Two hundred American Society of Anesthesiologists I and II patients undergoing orthopedic and urologic surgery under spinal anesthesia were included...
November 2016: Journal of Clinical Anesthesia
Chikao Miyazaki, Mao Takahashi, Kazuhiro Shimizu, Tatsuo Chiba, Takenori Morisita, Tomoyuki Yamamoto, Nobuo Sugo, Akira Takahara, Kohji Shirai
OBJECTIVE: Cardio ankle vascular index (CAVI) is reflecting stiffness of the arterial tree from the origin of aorta to the ankles. We observed elevated CAVI in patients who suffered from apoplexy attack. To clarify the role and the mechanism by which arterial stiffness elevated just after apoplexy attack, the effect of enhanced intracranial pressure (ICP) by injecting saline into the cisterna magna of the rabbit on blood pressure, CAVI and cervical blood flow, were studied. Furthermore the role of sympathetic nerve was studied...
September 2016: Journal of Hypertension
Miguel A Zarate, Eileen I Chang, Andrew Antolic, Charles E Wood
Umbilical cord occlusion (UCO) is a hypoxic insult that has been used to model birth asphyxia and umbilical cord compression in utero. UCO triggers vigorous neural and endocrine responses that include increased plasma ACTH and cortisol concentrations, increased blood pressure (BP), and decreased heart rate (HR). We have previously reported that ketamine, a noncompetitive N-methyl-D-aspartate receptor antagonist, can modify the fetal hemodynamic and ACTH responses to ventilatory hypoxia and cerebral ischemia-reperfusion...
September 2016: Physiological Reports
Aram Kim, Hwan Yeul Yu, Jinbeom Heo, Miho Song, Jung-Hyun Shin, Jisun Lim, Soo-Jung Yoon, YongHwan Kim, Seungun Lee, Seong Who Kim, Wonil Oh, Soo Jin Choi, Dong-Myung Shin, Myung-Soo Choo
Abuse of the hallucinogenic drug ketamine promotes the development of lower urinary tract symptoms that resemble interstitial cystitis. The pathophysiology of ketamine-induced cystitis (KC) is largely unknown and effective therapies are lacking. Here, using a KC rat model, we show the therapeutic effects of human umbilical cord-blood (UCB)-derived mesenchymal stem cells (MSCs). Daily injection of ketamine to Sprague-Dawley rats for 2-weeks resulted in defective bladder function, indicated by irregular voiding frequency, increased maximum contraction pressure, and decreased intercontraction intervals and bladder capacity...
2016: Scientific Reports
Jigar Patel, Rajesh Thosani, Jignesh Kothari, Pankaj Garg, Himani Pandya
BACKGROUND: The current era of fast-track extubation and faster recovery after cardiac surgery requires agents that provide perioperative sedation, suppress sympathetic response, reduce opioid requirement, and maintain hemodynamic stability. METHODS: In a prospective randomized double-blind study, 75 off-pump coronary artery bypass patients were divided into 3 groups of 25 each: group A had clonidine 1 µg·kg(-1), group B had clonidine 1 µg·kg(-1) and ketamine 1 mg·kg(-1), and group C had a saline placebo...
September 2016: Asian Cardiovascular & Thoracic Annals
Latifa Khenissi, Olga Nikolayenkova-Topie, Ségolène Broussaud, Gwenola Touzot-Jourde
OBJECTIVES: Cardiorespiratory parameters and anaesthesia quality in cats anaesthetised with either intramuscular (IM) alfaxalone or ketamine both combined with dexmedetomidine and butorphanol for castration were evaluated. METHODS: Thirty-two client-owned cats were randomly assigned to receive either alfaxalone (A; 3 mg/kg IM) or ketamine (K; 5 mg/kg IM), combined with dexmedetomidine (10 μg/kg) and butorphanol (0.2 mg/kg). Heart rate (HR), respiratory rate (RR) and rectal temperature (T°) were recorded prior to drug administration...
July 11, 2016: Journal of Feline Medicine and Surgery
Linda C Weiland, Katharina Kluge, Annette Pn Kutter, Peter W Kronen
OBJECTIVE: The aim was to compare efficacy and side effects of induction with medetomidine-ketamine or medetomidine-S(+)-ketamine by intranasal (IN) instillation in rabbits and to evaluate both protocols during subsequent isoflurane anaesthesia. STUDY DESIGN: Prospective, blinded, randomized experimental study in two centres. ANIMALS: Eighty-three healthy New Zealand White rabbits undergoing tibial or ulnar osteotomy. METHODS: Medetomidine (0...
July 4, 2016: Veterinary Anaesthesia and Analgesia
Özlem Özkan Kuşçu, Feride Karacaer, Ebru Biricik, Ersel Güleç, Lut Tamam, Yasemin Güneş
OBJECTIVE: We aimed to evaluate the effect of anaesthesia with thiopental (4 mg kg(-1)), ketamine (1 mg kg(-1)) and ketamine-thiopental (1 mg kg(-1) and 4 mg kg(-1), respectively) combination during electroconvulsive therapy (ECT) on the Hamilton Depression Rating Scale (HDRS) and Hamilton Anxiety Rating Scale (HAM-A) and haemodynamic variables in patients with resistant major depression. METHODS: Patients with HDRS scores above 17 were included. The patients were randomly divided into three groups according to the anaesthesia used...
October 2015: Turkish Journal of Anaesthesiology and Reanimation
Mustafa Said Aydoğan, Soner Demirel, Mehmet Ali Erdoğan, Penpegül Fırat, Cemil Çolak, Mahmut Durmuş
OBJECTIVE: The aim of this study was to compare the effects of a ketamine-propofol mixture (ketofol) and propofol on intraocular pressure (IOP) and haemodynamics in elderly patients during anaesthetic management at each repeated measurement times. METHODS: Forty elderly ASA I and II patients were divided into two random groups and received either propofol (1.5 mg kg(-1); group P, n=20) or ketofol (1:1 single syringe mixture of 5 mg mL(-1) ketamine and 5 mg mL(-1) propofol; group KP, n=20)...
February 2014: Turkish Journal of Anaesthesiology and Reanimation
Daniel Diaz-Gil, Friederike Haerter, Shane Falcinelli, Shweta Ganapati, Gaya K Hettiarachchi, Jeroen C P Simons, Ben Zhang, Stephanie D Grabitz, Ingrid Moreno Duarte, Joseph F Cotten, Katharina Eikermann-Haerter, Hao Deng, Nancy L Chamberlin, Lyle Isaacs, Volker Briken, Matthias Eikermann
BACKGROUND: Calabadion 2 is a new drug-encapsulating agent. In this study, the authors aim to assess its utility as an agent to reverse general anesthesia with etomidate and ketamine and facilitate recovery. METHODS: To evaluate the effect of calabadion 2 on anesthesia recovery, the authors studied the response of rats to calabadion 2 after continuous and bolus intravenous etomidate or ketamine and bolus intramuscular ketamine administration. The authors measured electroencephalographic predictors of depth of anesthesia (burst suppression ratio and total electroencephalographic power), functional mobility impairment, blood pressure, and toxicity...
August 2016: Anesthesiology
Philip Salen, Michelle Grossman, Michael Grossman, Anthony Milazzo, Jill Stoltzfus
STUDY OBJECTIVES: Ketamine and etomidate are used for procedural sedation (PS) to facilitate the performance of painful procedures. We hypothesized that ketamine produces adequate and comparable sedation conditions for dislocated large joint reduction when compared to etomidate and results in fewer adverse events. METHODS: This Institutional Review Board approved prospective trial compared a convenience sample of subjects, who were randomized to receive either ketamine or etomidate for PS to facilitate reduction of large joint dislocations...
April 2016: International Journal of Critical Illness and Injury Science
Parul Uppal Malhotra, Seema Thakur, Parul Singhal, Deepak Chauhan, Cheranjeevi Jayam, Ritu Sood, Yagyeshwar Malhotra
BACKGROUND: Pharmacological methods have been used as an adjunct to enhance child cooperativeness and facilitate dental treatment. OBJECTIVE: Purpose of this study was to evaluate and compare the effect of sedation by intranasal dexmedetomidine and oral combination drug midazolam-ketamine in a group of children with uncooperative behavior requiring dental treatment. MATERIALS AND METHODS: This was a prospective, randomized, double-blind study that included patients 3-9 years old with American Society of Anesthesiologists-I status...
April 2016: Contemporary Clinical Dentistry
Henri G M J Bertrand, Yvette C Ellen, Stevie O'Keefe, Paul A Flecknell
BACKGROUND: This study assessed the effects of sedation using a combination of fentanyl, midazolam and medetomidine in comparison to ketamine. Rhesus Macaques (Macaca mulatta), (n = 16, 5 males and 3 females randomly allocated to each treatment group) received either ketamine (KET) (10 or fentanyl-midazolam-medetomidine (FMM) (10 μg/kg(-1); 0.5; 20 μ both IM. Oxygen (100%) was provided by mask and heart rate, blood pressure, respiratory rate, EtCO2 and depth of sedation were assessed every 5 min for 20 min...
2016: BMC Veterinary Research
Klaus Hopster, Karl Rohn, Bernhard Ohnesorge, Sabine Br Kästner
OBJECTIVE: To compare the effects of controlled mechanical ventilation (CMV) and constant positive end-expiratory pressure (PEEP) and interposed recruitment manoeuvres (RMs) with those of CMV without PEEP on gas exchange during general anaesthesia and the early recovery period. STUDY DESIGN: Prospective, randomized clinical trial. ANIMALS: A total of 48 Warmblood horses undergoing elective surgery in lateral (Lat) (n = 24) or dorsal (Dors) (n = 24) recumbency...
June 2, 2016: Veterinary Anaesthesia and Analgesia
Mark A Burbridge, Jessica Brodt, Richard A Jaffe
A 32-year-old man with severe pulmonary arterial hypertension and Eisenmenger syndrome secondary to congenital ventricular septal defects presented for ventriculoperitoneal shunt insertion. Consultation between surgical and anesthesia teams acknowledged the extreme risk of performing this case, but given ongoing symptoms related to increased intracranial pressure from a large third ventricle colloid cyst, the case was deemed urgent. After a full discussion with the patient, including an explanation of anesthetic expectations and perioperative risks, the case was performed under monitored anesthesia care...
July 15, 2016: A & A Case Reports
Vida Ayatollahi, Maryam Vafaiyan, Maryam Hatami, Shekoufeh Behdad
OBJECTIVES: Ketofol is a mixture of propofol and ketamine in various concentrations. It is accepted as a suitable combination in procedural sedation and analgesia. The mixture of propofol and ketamine with different respiratory and hemodynamic effects may result in fewer dose-related side effects and a probable synergistic effect. This study was designed to compare the adverse effects and quality of analgesia of 2 different intravenous concentrations of ketofol in patients undergoing closed reduction of the nose...
June 2016: Journal of Craniofacial Surgery
Ali Kandil, Rajeev Subramanyam, Mohamed Monir Hossain, Stacey Ishman, Sally Shott, Anurag Tewari, Mohamed Mahmoud
AIM: Examination of dynamic airway collapse in patients with obstructive sleep apnea (OSA) during drug-induced sleep endoscopy (DISE) can help identify the anatomic causes of airway obstruction. We hypothesized that a combination of dexmedetomidine and ketamine (Group DK) would result in fewer oxygen desaturations and a higher successful completion rate during DISE in children with OSA when compared to propofol (Group P) or sevoflurane/propofol (Group SP). METHODS: In this retrospective study, we reviewed the records of 59 children who presented for DISE between October 2013 and March 2015...
July 2016: Paediatric Anaesthesia
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