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Diniz Miriely Steim - - 2013
To compare the cardiopulmonary effects and the quality of anesthesia of the extradural lidocaine in combination with fentanyl or morphine in bitches undergoing ovariohysterectomy. Sixteen female dogs, were sedated with intramuscular acepromazine (0.05mg kg-1), followed by anesthetic induction with intravenous propofol (4mg kg-1), to perform the lumbosacral puncture. The animals ...
Meng Xianghu - - 2013
The Philips Intellivue MP50 monitor provides a method for non-invasive, near-continuous blood pressure (BP) monitoring and is designed to be an alternative to direct intra-arterial BP (IABP) measurement. However, no studies have specifically compared non-invasive and invasive BP measurements using the monitor. The present retrospective study observed 515 patients undergoing ...
Tabari Masoomeh M Department of Anesthesiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, IR - - 2013
Direct laryngoscopy and tracheal intubation can result in blood pressure and heart rate increase which in turn may lead to myocardial ischemia, cerebral hemorrhage, and even death in susceptible patients. Tizanidine is α2-receptor agonists that suppresses central sympathetic system. This study evaluates the effects of oral Tizanidine on hemodynamic responses ...
Oel Carolin - - 2013
OBJECTIVE: Analysis of any effect of retrobulbar block during ocular surgery on heart rate variability and oculocardiac reflex. STUDY DESIGN: Prospective study. ANIMAL STUDIED: Horses (n = 16) undergoing eye enucleation due to chronic ophthalmologic diseases. PROCEDURE: Eye enucleation was performed under general anesthesia. The horses were randomly assigned to the first ...
Yokoe Chizuko - - 2013
OBJECTIVE: Decrease in arterial blood pressure is a prominent adverse reaction during propofol (Disoprivan; AstraZeneca K.K., Osaka, Japan) sedation. The purpose of this prospective randomized study was to explore the effects of nitrous oxide (N2O) on the hypotensive response during propofol sedation. STUDY DESIGN: Twenty-six healthy volunteers received intravenous sedation ...
Brekke Hege Kristin - - 2013
BACKGROUND:: A highly positive intraoperative fluid balance should be prevented as it negatively impacts patient outcome. Analysis of volume-kinetics has identified an increase in interstitial fluid volume after crystalloid fluid loading during isoflurane anesthesia. Isoflurane has also been associated with postoperative hypoxemia and may be associated with an increase in ...
Dewhirst Elisabeth - - 2013
STUDY OBJECTIVE: To assess the accuracy of a noninvasive continuous blood pressure (BP) monitor in patients who are positioned prone in the operating room. DESIGN: Prospective study. SETTING: Operating room at a children's hospital. PATIENTS: 20 pediatric patients, aged 13.8 ± 2 years, and 63.7 ± 18.8 kg, scheduled for ...
Adlesic Edward C - - 2013
Perioperative hypertension is a common problem. If hypertension is left untreated in patients at risk, infarctions and stroke are possible. There are limited choices of antihypertensive agents for the office. Aggressive antihypertensive therapy is not indicated because most of the episodes seen in the office are hypertensive urgencies and not ...
Keating Stephanie C J - - 2013
Objective-To evaluate the cardiopulmonary effects of IV fentanyl administration in dogs during isoflurane anesthesia and during anesthetic recovery with or without dexmedetomidine or acepromazine. Animals-7 sexually intact male purpose-bred hound-type dogs aged 11 to 12 months. Procedures-Dogs received a loading dose of fentanyl (5 μg/kg, IV) followed by an IV ...
Jeong Hee Jin - - 2013
Purpose: This study aims to investigate the most appropriate effect-site concentration of remifentanil to minimize cardiovascular changes during inhalation of high concentration desflurane. Materials and Methods: Sixty-nine American Society of Anesthesiologists physical status class I patients aged 20-65 years were randomly allocated into one of three groups. Anesthesia was induced ...
Rabadi Daher - - 2013
To compare the effect of prophylactic administration of normal saline against the hypotensive effect of propofol in female patients booked for gynecological procedures. Sixty nine ASA (I, II) patients were randomly allocated into two groups, group 1 received 5mL.kg(-1) of 0.9% normal saline 10 minutes before induction, whereas group 2 ...
Lee Hae Jin - - 2013
We present successful epidural anesthesia and assisted mechanical ventilation in a parturient woman with respiratory failure. A 41-year-old woman at 35 weeks' of gestation was entering labor. She was pneumonectomized on the left, had bronchiectasis on the remnant lung, and was under assisted mechanical ventilation by continuous positive airway pressure ...
Rabadi Daher D Department of Anesthesiology, Jordan University of Science & Technology, Irbid, Jordan. Electronic address: - - 2013
To compare the effect of prophylactic administration of normal saline against the hypotensive effect of propofol in female patients booked for gynecological procedures. Sixty nine ASA (I, II) patients were randomly allocated into two groups, group 1 received 5mL.kg(-1) of 0.9% normal saline 10minutes before induction, whereas group 2 received ...
Ida Keila K - - 2013
OBJECTIVE: To determine if pressure support ventilation (PSV) weaning from general anesthesia affects ventilation or oxygenation in horses. STUDY DESIGN: Prospective randomized clinical study. ANIMALS: Twenty client-owned healthy horses aged 5 ± 2 years, weighing 456 ± 90 kg. METHODS: In the control group (CG; n = 10) weaning was performed by a gradual decrease in respiratory rate ...
Bassani Tito - - 2013
During general anesthesia positive pressure mechanical ventilation (MV) profoundly affects intrathoracic pressure and venous return, thus soliciting cardiopulmonary reflexes and modifying stroke volume. As a consequence heart period, approximated as the temporal distance between two consecutive R peaks on the ECG (RR), and systolic arterial pressure (SAP) variability series are ...
Gunderson Erin G - - 2013
Objective-To compare effects of anesthetic induction with midazolam-propofol or midazolam-etomidate on intraocular pressure (IOP), pupillary diameter (PD), pulse rate, blood pressure, and respiratory rate in clinically normal dogs. Animals-18 dogs. Procedures-Dogs undergoing ophthalmic surgery received midazolam (0.2 mg/kg, IV) and either propofol or etomidate (IV) until intubatable. For all dogs, ...
Hwang Jung-Won - - 2013
: Pneumoperitoneum in the pelvic laparoscopic surgery induces a rise in the intraocular pressure (IOP). This study investigated whether IOP changes were different depending on the surgical position (Trendelenburg vs. reverse Trendelenburg) and the anesthetic drugs (propofol vs. desflurane). : A total of 100 patients scheduled for pelvic laparoscopy or ...
Ramoo S - - 2013
To evaluate the sedative, respiratory and cardiovascular effects of subcutaneously administered alfaxalone and butorphanol in a group of hyperthyroid cats. A prospective, single-centre observational study. Client-owned hyperthyroid cats (n=20) were examined and sedated with alfaxalone (3 mg/kg) and butorphanol (0.2 mg/kg) administered subcutaneously. Sedation scores, heart rate, respiratory rate and blood pressure ...
Peirovifar Ali A Ali Peirovifar, Associate Professor of Anesthesiology, Fellowship of Critical Care Medicine, Faculty of Medicine, Anesthesiology Research Team, Department of Anesthesiology, Tabriz University of Medical Sciences, Tabriz, - - 2013
Objective: To compare the postoperative complications between Laryngeal Mask Airway (LMA) and endotracheal tube (ETT) during low-flow anesthesia with controlled ventilation. Methodology: Eighty adult Patients with ASA class I or II were randomly allocated into two forty-patient groups (ETT or LMA). Cuff pressure was monitored during anesthesia. After high uptake ...
Bai Renren - - 2013
A series of novel hybrids of natural isochroman-4-one bearing isopropanolamine moiety were designed, synthesized and evaluated for their antihypertensive activity. It was found that compound IIId, prepared by hybridizing N-isopropyl substituted isopropanolamine functionality to a phenolic oxygen of isochroman-4-one, exhibited potent β1-adrenoceptor blocking effect comparable to the well-known antihypertensive drug ...
Bruins Benjamin B Department of Pediatrics, Washington University in St. Louis School of Medicine, Campus Box 8028, 5th Floor MPRB, 660 S. Euclid Ave., St. Louis, MO 63110. - - 2013
The effect of various sedatives and anesthetics on vasopressor modulation of cerebral blood flow (CBF) in children is unclear. In adults, isoflurane has been described to decrease CBF to a lesser extent than fentanyl and midazolam. Most large-animal models of neurocritical care use inhaled anesthetics for anesthesia. Investigations involving modulations ...
Wajima Zen'ichiro - - 2013
PURPOSE: A decrease in blood pressure is sometimes observed when a postsurgical patient is transferred to another bed after recovering from anesthesia. However, the mechanism behind this hypotension has not been completely elucidated. The purpose of this study was to investigate and compare changes in hemodynamic properties for possible causes ...
Miller Michele - - 2013
Forty free-ranging white rhinoceros (Ceratotherium simum) were anesthetized with etorphine, azaperone, and hyaluronidase in Kruger National Park, South Africa, between February and August 2009. Eighteen rhinoceros received butorphanol in the dart combination, and 22 rhinoceros had butorphanol administered intravenously within 15 min of darting. Body position, blood gas values, heart ...
Chohan Amandeep S - - 2013
Objective-To compare effects of isoflurane and sevoflurane on intracranial pressure and cardiovascular variables at 1.0, 1.5, and 2.0 times the minimum alveolar concentration (MAC) in mechanically ventilated normocapnic dogs. Animals-6 healthy male Beagles. Procedures-The individual MAC was determined for each agent with an electrical stimulus. After a minimum of 1 ...
Trim Cynthia M - - 2013
OBJECTIVE: To determine the accuracy of an oscillometric blood pressure monitor in anesthetized sheep. STUDY DESIGN: Prospective study. ANIMALS: Twenty healthy adult sheep, 11 males and nine females, weighing 63.6 ± 8.6 kg. METHODS: After premedication with buprenorphine or transdermal fentanyl, anesthesia was induced with ketamine-midazolam and maintained with isoflurane and ketamine, 1.2 mg kg(-1) ...
Michalczyk Kathryn - - 2013
OBJECTIVE:: Ketamine has a long history of use during pediatric procedural sedation. Concerns about raising intracranial pressure may limit use in certain situations. Whereas some data suggest that benzodiazepine coadministration may blunt this response, pediatric data during procedural sedation do not exist. We evaluated the effects of midazolam pretreatment on ...
Crumley Mariana N - - 2013
Objective-To compare the effects of 2 fractions of inspired oxygen, 50% and > 95%, on ventilation, ventilatory rhythm, and gas exchange in isoflurane-anesthetized horses. Animals-8 healthy adult horses. Procedures-In a crossover study design, horses were assigned to undergo each of 2 anesthetic sessions in random order, with 1 week separating ...
Park Jong Taek - - 2013
For ophthalmic surgery anesthesia, it is vital that intraocular pressure (IOP) is controlled. Most anesthetic drugs affect IOP dose-dependently, and inhalational anesthetics dose-dependently decrease IOP. In this study, we compared the effects of desflurane and sevoflurane on IOP and hemodynamics in pediatric ophthalmic surgery. Thirty eight pediatric patients from the ...
Paré Monique - - 2013
OBJECTIVE: To test whether partial pressure of CO(2) in expired gas (PĒCO(2) ) predicts the partial pressure of CO(2) in arterial blood (PaCO(2) ) in apneic chickens during air sac insufflation anesthesia at three different ventilation states. Secondary objective: To determine the PĒCO(2) at which apnea occurs during air sac ...
Kanaya Akihiro - - 2013
BACKGROUND: Low fraction of inspired oxygen (F(I)O(2)) reduces the atelectasis area during anesthesia induction. However, atelectasis may occur during laryngoscopy and endotracheal intubation because lungs can collapse within a fraction of a second. We assessed the effects of ventilation with 100 and 40 % oxygen on functional residual capacity (FRC) in ...
Dorantes Mendez Guadalupe - - 2013
The aim of this paper is to compare baroreflex sensitivity (BRS) following anesthesia induction via propofol to pre-induction baseline values through a systematic and mathematically robust analysis. Several mathematical methods for BRS quantification were applied to pre-operative and intra-operative data collected from patients undergoing major surgery, in order to track ...
Acierno Mark J - - 2013
OBJECTIVE: To determine if an oscillometric device optimized for use in dogs produces systolic, diastolic, and mean arterial pressures (MAPs) measurements that are in good agreement with directly obtained pressures DESIGN: Prospective study. SETTING: University teaching hospital. ANIMALS: Twenty-one dogs under general anesthesia for surgical procedures. INTERVENTIONS: A 20-Ga catheter ...
Kako Hiromi - - 2013
Neuroblastomas are the most common, non-central nervous system tumor of childhood. Similar to pheochromocytomas, they are derived from neural crest cells and therefore retain the potential to synthesize catecholamines. Unlike pheochromocytomas, however, perioperative issues related to blood pressure instability with hypertension are uncommon. We report details of a 3-year-old child ...
Nair Bala G - - 2013
Blood pressure monitoring during anesthesia is an American Society of Anesthesiology standard. However, the anesthesia provider sometimes fails to engage the patient monitor to make periodic (generally every 3-5 min) measurements of Non-Invasive Blood Pressure (NIBP), which can lead to extended periods (>5 min) when blood pressure is not monitored. We describe ...
Alexander B S BS Irvine School of Medicine, University of California, Irvine, CA, - - 2013
While the decrease in blood carbon dioxide (CO2 ) secondary to hyperventilation is generally accepted to play a major role in the decrease of cerebral tissue oxygen saturation (SctO2 ), it remains unclear if the associated systemic hemodynamic changes are also accountable. Twenty-six patients (American Society of Anesthesiologists I-II) undergoing ...
Hawkins Michelle G - - 2013
Objective-To evaluate the effects of dorsal versus lateral recumbency on the cardiopulmonary system during isoflurane anesthesia in red-tailed hawks (Buteo jamaicensis). Animals-6 adult 1.1- to 1.6-kg red-tailed hawks. Procedures-A randomized, crossover study was used to evaluate changes in respiratory rate, tidal volume, minute ventilation, heart rate, mean arterial and indirect ...
Bhardwaj Neerja - - 2013
Maintaining systolic blood pressure (SBP) at 100% of baseline is best for fetal and maternal outcome. We hypothesized that irrespective of the vasopressor used, maintaining SBP at 100% of baseline with phenylephrine (P), metaraminol (M), or ephedrine (E) will produce the best fetal pH after cesarean section (LSCS) under subarachnoid ...
Sharma Bimla - - 2013
The ProSeal™ laryngeal mask (PLMA) is increasingly being used as an airway device for laparoscopic surgery. Its silicone cuff allows diffusion of nitrous oxide, carbon dioxide and other gases with resultant rise in its intracuff pressure during anesthesia. The present study was designed to investigate the intracuff pressure changes during ...
Seaborn Tommy - - 2013
The evaluation of respiratory parameters often requires the use of anesthetics (that depress the neural -network controlling respiration), and/or ways to restrain the animal's mobility (that produces a stress-dependent increase of respiration). Consequently, the establishment of plethysmography represented an invaluable technique in respiratory physiology. Plethysmography, indeed, allows the assessment of ...
Ulus Abdülkadir - - 2013
Background This study was conducted to compare low concentration-high volume intravenous regional anesthesia (IVRA) method with local anesthetic method in upper extremity surgery in terms of efficiency and adverse effects. Material and Methods Thirty-nine patients were divided into 2 groups; the first group received a 2% concentration of 12-15 mL ...
Kandasamy Regunath R Neurosurgical Division, Department of Neurosciences, Hospital Universiti Sains Malaysia, 16150, Kubang Kerian, Kota Bharu, Kelantan, - - 2013
A patient with refractory epilepsy due to underlying mesial temporal sclerosis underwent general anesthesia for an elective anterior temporal lobectomy and amgydalo-hippocampectomy. He was a known hypertensive and his blood pressure was well controlled on medication. Following induction of general anesthesia and subsequent opening of the craniotomy flap it was ...
Hosseinzadeh Hamzeh H Department of Anesthesiology, Tabriz University of Medical Sciences, Tabriz, - - 2013
Introduction: LMA is a simple supra-laryngeal device which is used to establish and maintain airway. Despite the common use of the LMA, there are no optimal methods for induction of anesthesia that can guarantee a proper insertion. The purpose of this study is comparing three methods of induction of anesthesia ...
Zádori Zoltán S ZS Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Budapest, - - 2013
The protocols described in this unit are designed to measure the intragastric pressure in anesthetized rats by a water-filled low-compliance rubber balloon. The balloon is introduced into the stomach either orally (by passing the balloon down the esophagus) or directly via a small incision of the fundus after laparotomy. The ...
Lu Yao - - 2013
This study was a double-blinded randomized control trial designed to investigate the hemodynamic effects of dexmedetomidine on prolonged tourniquet inflation. Thirty-seven patients scheduled for elective orthopedic surgery of the lower limb under general anesthesia were recruited. They were randomly assigned to receive intravenous dexmedetomidine (DEX, 0.5 μg/kg; n = 18) or normal saline ...
Anvaripour Abdorasoul - - 2012
PURPOSE: In order to prevent postpartum hemorrhage in caesarean section under spinal anesthesia, patients routinely receive oxytocin. In this study we compared the efficacy of Methylergonovine and Oxytocin on hemodynamic stability and bleeding amount in caesarean section. MATERIALS AND METHODS: In this randomised controlled trial study, 80 patients candidate for ...
Matsukawa Ryuichi - - 2013
BACKGROUND We recently reported that activation of neuregulin-1 (NRG-1)/ErbB signaling in the rostral ventrolateral medulla (RVLM) of the brainstem elicits sympathoinhibition and depressor effects, and ErbB2-type ErbB receptors are involved in the neurogenic mechanisms of hypertension. Nitric oxide (NO) in the RVLM also elicits sympathoinhibition and depressor effects. NRG-1 enhances ...
Kim Sung-Hoon - - 2012
BACKGROUND:Pulse transit time (PTT) has been reported to show good agreement with arterial blood pressure (BP) in awake humans. We evaluated whether noninvasive beat-to-beat PTT accurately correlated with invasively measured continuous arterial BP during anesthesia induction in hypertensive patients.METHODS:Twenty-three hypertensive patients who were scheduled for kidney transplant were enrolled. Radial ...
Akinmoladun V I VI Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, College of Medicine, University of Ibadan, Ibadan, - - 2013
The systemic effects of adrenaline administered during dental local anesthesia have been the subject of many studies. The purpose of this study was to investigate the haemodynamic and metabolic effects attributable to adrenaline injected during local anesthesia in dental extraction patients. Apparently medically fit patients were included and randomized into ...
Bowles Eric D - - 2012
Although anesthetists have long assumed that ketamine's role in neuroanesthesia is limited because of its association with increased intracranial pressure, this article presents a review of recent clinical literature suggesting otherwise. When ketamine is used as an adjuvant anesthetic agent along with mechanical ventilation to maintain normocapnia, ketamine does not ...
Firme Elizabeth Bessadas Penna - - 2012
OBJECTIVE: To compare deep sedation with general anesthesia for curative ablation of atrial fibrillation. METHODS: We conducted a prospective, randomized study with 32 patients, aged between 18 and 65 years, ASA 2 and 3, BMI d" 30kg/m2, divided into two groups: deep sedation (G1) and general anesthesia (G2). All patients ...
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