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Results 401 - 450 of 1868
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Adigun T A - - 2010
Hypotension is a major concern of the anaesthetists whenever subarachnoid block is performed especially in obstetric patients. Vasopressors have been shown to be more effective at limiting spinal hypotension than other treatment of hypotension like preloading and left uterine displacement. The aim of the study is to compare the effect ...
Winterhalter Michael - - 2010
Sympathetic stimulation leads to a change in electrical skin impedance. So far it is unclear whether this effect can be used to measure the effects of anaesthetics during general anaesthesia. The aim of this prospective study is to determine the electrical skin impedance during induction of anaesthesia for coronary artery ...
Freye Enno - - 2010
BACKGROUND AND OBJECTIVE: The concept of opioid-induced hyperalgesia has recently gained prominence as a contributing factor for long-term treatment failure. METHODS: To evaluate possible differences of opioids used in anaesthesia, cumulative doses of sufentanil and remifentanil were compared with escalating doses of the oripavine derivative etorphine, in awake and trained ...
Allweiler Sandra - - 2010
New Zealand White (NZW) rabbits (n = 34) received intravenous propofol (16 +/- 5 mg/kg) for induction of anaesthesia followed by maintenance with sevoflurane (4.0 +/- 0.5%) in oxygen. All animals underwent ovariohysterectomy. Heart rate, respiratory rate, haemoglobin oxygen saturation, end-tidal carbon dioxide concentration, end-tidal sevoflurane concentration and oesophageal temperature ...
Domi Rudin Q - - 2010
OBJECTIVE: To study the effects of sufentanil and fentanyl on intraocular pressure after easy and difficult intubations. METHODS: From January 2006 to January 2008 there were included 120 patients undergoing general anesthesia at University Hospital Center (Mother Theresa) Service of Anesthesia and Intensive Care, Tirana, Albania. The patients were divided ...
Klamt Jyrson Guilherme - - 2010
Background. The purpose of this study was to access the effects of dexmedetomidine-fentanyl infusion on blood pressure (BP) and heart rate (HR) before surgical stimulation, on their changes to skin incision, and on isoflurane requirement during cardiac surgery in children. Methods. This study had a prospective, randomized, and open-label design. ...
Chang Chul Ho - - 2010
BACKGROUND AND OBJECTIVE: Suspension laryngoscopy under general anaesthesia with a tracheal tube has been widely used for laryngeal microsurgery, but it has some limitations such as intense cardiovascular stimulation during anaesthesia of short duration, occasionally a poor surgical field, and the possibility of a mass being hampered by the tracheal ...
Ragab Sameh M - - 2010
OBJECTIVES: To conduct the first prospective randomized controlled study 1) evaluating the possibility of improving the quality of the operative field and to provide a bloodless functional endoscopic sinus surgery (FESS) in children through total intravenous anesthesia (TIVA) using remifentanil combined with propofol, and 2) testing the safety and efficacy ...
Menda Ferdi - - 2010
During induction of general anesthesia hypertension and tachycardia caused by tracheal intubation may lead to cardiac ischemia and arrhythmias. In this prospective, randomized study, dexmedetomidine has been used to attenuate the hemodynamic response to endotracheal intubation with low dose fentanyl and etomidate in patients undergoing myocardial revascularization receiving beta blocker ...
Nelson Kenneth E - - 2010
BACKGROUND: There is a wide variability in dilution of drugs in cerebrospinal fluid after spinal injection, as measured near the site of injection. With local anesthetics, there is a wide variability in speed of onset, which correlates with block duration. The authors tested whether local cerebrospinal fluid drug concentrations and ...
Nofal O - - 2010
BACKGROUND: Limited mouth opening associated with unavailable or ineffective fibreoptic bronchoscope (FOB) is an intubation challenge. A light-aiding device may facilitate the blind nasal intubation. METHODS: Awake blind nasal intubation was planned for 16 elective patients with inaccessible oral route (three children and 13 adults, ASA I-II). Topical anaesthesia for ...
Ferreira David A - - 2009
BACKGROUND: Patients with hypertension may be more prone to develop hypotension as a consequence of opioid administration under general anesthesia. The hemodynamic and bispectral index responses to a remifentanil bolus in neurosurgical hypertensive patients under target-controlled infusion with propofol and remifentanil are addressed. MATERIAL/METHODS: Ten healthy patients and 10 patients ...
Baumgartner Christine M - - 2009
OBJECTIVE: To evaluate the short-term cardiovascular effects of IV administration of dipyrone (metamizole) as an intraoperative analgesic during total IV anesthesia with propofol. ANIMALS: 6 healthy female New Zealand White rabbits. PROCEDURES: Anesthesia was induced with propofol (4.0 to 8.0 mg/kg, IV) and maintained with the same drug (1.2 to ...
Lortat-Jacob B - - 2009
The Zeus anaesthesia machine includes an auto-control mode which allows targeting of end-tidal volatile and inspired oxygen concentrations. We assessed the clinical benefits and economic impact of this target-controlled anaesthesia compared with conventional manually controlled anaesthesia. Eighty patients were randomly assigned to receive desflurane either with a fresh gas flow ...
Inoue S - - 2009
Landiolol is a recently developed, selective short-acting beta1-antagonist. The aim of the study was to evaluate the efficacy of landiolol for suppressing haemodynamic changes induced by laryngoscopy and tracheal intubation (LTI) in Japanese patients. A comprehensive search was undertaken to identify all randomised comparisons of landiolol with placebo that examined ...
Song J C - - 2009
BACKGROUND: Some studies suggest that certain clinical symptoms of cholestasis, such as fatigue and pruritus, result from altered neurotransmission. Patients with obstructive jaundice also have labile blood pressure and heart rate. In the present study, the authors investigated whether obstructive jaundice affects a patient's sensitivity to hypnotics and the haemodynamic ...
Sharma A - - 2009
Women presenting with low pressure post-partum headache following neuraxial techniques are frequently offered an epidural blood patch, despite its inherent risks. We present two parturients with classical symptoms of low-pressure headache, who each received neuraxial labour analgesia without a documented dural puncture with a Tuohy needle. Both parturients were successfully ...
DeRossi Rafael - - 2010
Six 20-24-month-old heifers received ketamine (KE), 2% lidocaine (Li), or ketamine and 2% lidocaine (KELI) into the first intercoccygeal (Co(1)-Co(2)) epidural space while standing. Heart rate, arterial blood pressure (systolic, diastolic, and mean), respiratory rate, rectal temperature, analgesia, sedation, and ataxia were determined before treatment and at predetermined intervals. Subjective ...
Tousignant Claude - - 2009
PURPOSE: In this prospective observational cohort study, we investigated whether tricuspid annular velocities (TAV) are altered after induction of anesthesia in patients undergoing coronary artery bypass graft (CABG) surgery. METHODS: Twenty-four elective CABG patients were assessed before and after induction of anesthesia, and a convenience sample of nine healthy volunteers ...
Hsieh Yu-Hsi - - 2010
CONTEXT: Assistant-administered abdominal pressure is usually required to reduce loop formation during a colonoscopy. The effect of patient self-administered abdominal pressure has not been evaluated. OBJECTIVE: To compare the effectiveness of patient self-administered abdominal pressure with assistant-administered abdominal pressure to reduce loop formation during colonoscopy performed with minimal sedation. PATIENTS: ...
Beydon L - - 2009
OBJECTIVES: This study in swine assessed BIS stability in response to decreases and increases in cardiac output under two propofol/remifentanil dosage combinations, both producing the same depth of surgical anaesthesia. METHODS: Eight anaesthetized-paralyzed ventilated adult swine were studied using a random-order cross-over design. Four received a P low/R high combination ...
Girard Francois - - 2009
BACKGROUND: In this study, we compared the effect of light sedation with remifentanil versus propofol on intracranial (ICP) and cerebral perfusion pressure (CPP) of patients undergoing stereotactic brain tumor biopsy under regional anesthesia. METHODS: This was a prospective, open-label, randomized, and controlled study. Forty patients undergoing stereotactic brain tumor biopsy ...
Korhonen I - - 2009
Photoplethysmography (PPG), i.e. pulse oximetric wave, is a non-invasive technique that is used in anaesthesia monitoring primarily to monitor blood oxygenation. The PPG waveform resembles that of the arterial blood pressure but instead of pressure it is related to the volume changes in the measurement site and hence contains information ...
Gogarten Wiebke - - 2009
PURPOSE OF REVIEW: The most recent findings on preeclampsia with a focus on maternal mortality, haemodynamic changes, clotting disorders and anaesthesia are reviewed. RECENT FINDINGS: Preeclampsia is a major cause of maternal morbidity and mortality. Cerebral haemorrhage is the single most common cause of maternal death in preeclampsia and currently ...
Owczuk R - - 2009
Drugs used in anaesthesia may provoke torsadogenic changes in cardiac repolarisation. The aim of this study was to assess the effect of promethazine on the parameters of ventricular repolarisation: QTc interval and transmural dispersion of repolarisation. Forty patients were randomly allocated to receive promethazine (25 mg) or midazolam (2.5 mg). ...
Gökçe Biricik M - - 2009
OBJECTIVE: To assess the effect of esmolol added to propofol-remifentanil combination for hypotensive anesthesia on hemodynamic conditions, consumption of anesthetic drugs, and recovery, during elective septorhinoplasty. METHODS: This prospective, randomized study was carried out at Gazi University, Faculty of Medicine, Ankara, Turkey in 2005. Following Institutional Ethical Committee approval, 40 ...
Manthous Constantine A CA Department of Medicine, Yale University School of Medicine, New Haven, Connecticut, - - 2010
In many hospitals, emergency physicians commonly initiate invasive positive-pressure ventilation. To review common patient- and ventilator-related factors that can promote hemodynamic instability during and after endotracheal intubation. Venous return is proportional to mean systemic pressure (Pms) minus right atrial pressure (Pra). Endotracheal intubation with positive-pressure ventilation often reduces Pms while ...
Kunisawa Takayuki - - 2009
STUDY OBJECTIVE: To evaluate the effect of dexmedetomidine combined with fentanyl on hemodynamics. DESIGN: Prospective, double-blinded, randomized study. SETTING: Operating room of a university hospital. PATIENTS: 30 ASA physical status II and III patients with mild-to-moderate cardiovascular disease. INTERVENTIONS: Patients were assigned to one of three groups: Group D-F2 [dexmedetomidine, ...
Dabrowski W W Department of Anaesthesiology and Intensive Therapy, Medical University of Lublin, Lublin, Poland. - - 2009
In 2006, the International Conference of Experts on Intra-abdominal Hypertension defined abdominal perfusion pressure (APP) as the difference between mean arterial pressure (MAP) and intra-abdominal pressure (IAP).The aim of the study was to analyse changes in IAP and APP in patients undergoing elective coronary artery bypass grafting (CABG). Fifty patients ...
Shiratsuchi Hiroe - - 2009
Surgical stress and anesthesia result in systemic immunosuppression. Propofol, a commonly used anesthetic agent, alters immune cell functions. Previously, we demonstrated that extracellular pressure increases macrophage phagocytosis. We hypothesized that propofol might influence pressure-induced macrophage phagocytosis in monocytes from patients undergoing surgery. Pressure (20 mmHg above ambient pressure) augmented phagocytosis ...
Bithal Parmod K - - 2009
Laryngoscopy and tracheal intubation (LTI) increase blood pressure and heart rate (HR). Intensity of these changes is influenced by the anaesthetic depth assessed by the bispectral index (BIS). We determined the effect of phenytoin on anaesthetic depth and its influence on haemodynamics following LTI. Fifty patients of ASA grades I ...
Ribeiro L M - - 2009
The cerebral state index (CSI) is used for monitoring EEG and depth of anaesthesia. The objective of this study was to analyse the correlation between ocular reflexes, CSI and estimated propofol plasma concentrations (PropCP) in dogs during induction of anaesthesia with propofol. Fourteen dogs were premedicated with acepromazine 0.05 mg ...
Kim Myung-Chun - - 2009
BACKGROUND: Laryngoscopy and tracheal intubation are often associated with tachycardia, hypertension, and arrhythmias. There is a risk of hypercapnia in the case of difficult mask ventilation. The circulatory response to hypercapnia is increases in arterial pressure and heart rate. We evaluated the difference of cardiovascular responses to tracheal intubation between ...
Stegmann G F - - 2009
In humans the combined administration of epidural anaesthesia and inhalation anaesthesia may result in cardiovascular instability associated with decreases in heart rate and blood pressure. Anaesthesia was induced with a combination of midazolam/ketamine in 18 female pigs with a mean body weight of 24.9 +/- 5.9 kg scheduled for surgical ...
Monteiro Eduardo R - - 2009
The cardiovascular effects of dexmedetomidine alone or in combination with atropine were studied in six cats. Cats underwent four treatments in a randomized crossover design as follows: DEX15, saline+dexmedetomidine 15microg/kg; DEX30, saline+dexmedetomidine 30microg/kg; ADEX15, atropine+dexmedetomidine 15microg/kg; ADEX30, atropine+dexmedetomidine 30microg/kg. Pulse rate (PR) and systolic arterial pressure (SAP) decreased in DEX15 ...
Simon Mischa J G - - 2009
BACKGROUND AND OBJECTIVE: Lumbar epidural anaesthesia induces cardiovascular changes and decreases liver blood flow (Qh). We studied the effects of age on haemodynamics, blood volumes and Qh before and after epidural anaesthesia. METHODS: Thirty-six patients were enrolled as follows: group 1, 20-44 years; group 2, 45-70 years; group 3, >70 ...
Fujii Keisuke - - 2009
BACKGROUND: In some types of pediatric supraventricular tachycardia, reentrant mechanisms are sensitive to enhanced vagal tone. Propofol is a feasible anesthetic for pediatric electrophysiological study and radiofrequency catheter ablation. Although fentanyl and propofol infusions both enhance cardiac vagal tone, it is unclear whether the combination of propofol and fentanyl has ...
Santra Sankari - - 2009
Total intravenous anaesthesia has received much importance than inhalational anaesthesia in neuroanaesthetic practice. In an effort to determine whether any important clinical differences occur, studies concerning intracranial pressure (ICP), degree of dural tension and degree of brain swelling during intravenous and inhalational based anaesthesia are warranted like the present one. ...
Tran Denis - - 2009
Epidural anesthesia is the most common form of anesthesia in obstetrics. The loss-of-resistance to saline injection is used to confirm when the needle tip enters the epidural space. This procedure is highly dependent on skill and expertise, so it is useful to quantify the tissue resistance during insertion. Sensors are ...
Tanaka M - - 2009
BACKGROUND: The purpose of this trial was to determine the 95% effective dose (ED95) of phenylephrine by intermittent i.v. bolus, to prevent spinal-induced hypotension and/or nausea at elective cesarean delivery. METHODS: The study was conducted in a double-blinded fashion in 50 patients undergoing elective cesarean delivery under spinal anesthesia. The ...
Ashgan Raouf Ali
This study was designed to study the efficacy of oral gabapentin premedication in attenuating the cardiovascular responses and catecholamine release to laryngoscopy and endotracheal intubation. Fifty normotensive ASA I patients undergoing elective surgery under general anaesthesia were randomly allocated to one of two equal groups (n = 25 each). Patients ...
Santoni Brandon G - - 2009
BACKGROUND: Manual in-line stabilization (MILS) is recommended during direct laryngoscopy and intubation in patients with known or suspected cervical spine instability. Because MILS impairs glottic visualization, the authors hypothesized that anesthesiologists would apply greater pressure during intubations with MILS than without. METHODS: Nine anesthetized and pharmacologically paralyzed patients underwent two ...
Taniyama Kiichi - - 2009
We performed intravenous sedation with dexmedetomidine hydrochloride during minor oral surgery and compared this agent with propofol. Patients were randomly divided into 2 groups: dexmedetomidine hydrochloride (D) and propofol (P) groups. In Group D, systolic blood pressure (SBP) increased immediately after the start of initial loading, although no significant differences ...
Jasper Abiodun Oyinpreye - - 2009
A 13-year-old male was seen at the Hospital with a 5-months history of right chest swelling, pain and recurrent fever and breathlessness on mild exertion. There was a history of gunshot to his chest two and half years before presentation.On admission he was febrile with a temperature of 39 degrees ...
Talaie Ramin - - 2009
BACKGROUND/AIMS: Determination of optimal administered sedatives during endoscopy is vital and necessary for the minimization of their side effects. This study was designed to see the effect of sedation on endoscopy induced arterial oxygen desaturation and determination of sedatives safety during gastrointestinal endoscopy. METHODOLOGY: In this controlled clinical trial, 90 ...
Ali Zulfiqar - - 2009
The main aims of anesthesia for pituitary surgery include maintenance of hemodynamic stability, provision of conditions that facilitate surgical exposure, and a smooth emergence to facilitate a prompt neurologic assessment. The primary aim of our study was to compare the effects of 3 anesthetic regimens on hemodynamics and recovery characteristics ...
Ho Anthony M-H - - 2009
Airway, breathing, and circulation are top priorities in any resuscitation. However, in cardiac tamponade, the decision to intubate the trachea and initiate positive pressure ventilation (PPV) should only be taken after consideration of the deleterious haemodynamic effects of positive intrathoracic pressure. We suggest that the threshold for intubation and PPV ...
Huang Chi-Hsiang - - 2008
BACKGROUND: Resuming two lung ventilation (2LV) from one lung ventilation (OLV) has been proven to induce significant oxidative stress, mainly by superoxide release. Although total intravenous anesthesia and inhalational anesthesia are both used in thoracic surgery, different anesthetics may alter the oxidant/antioxidant balance. METHODS: Thirty patients undergoing thoracic surgery were ...
Bhattacharya Dipasri - - 2008
The present study was undertaken in patients with controlled hypertension to determine the pressor responses following insertion of laryngeal mask airway (LMA) as compared to endotracheal intubation. Two hundred patients with controlled hypertension of either sex, belonging to ASA II undergoing elective surgical procedures of 11/2 to 2 hours duration, ...
Ngan Kee W D - - 2008
In a randomised, double-blinded study, we compared boluses of phenylephrine 100 microg with ephedrine 10 mg for treating hypotension (systolic blood pressure < 100 mmHg) in 204 patients having non-elective Caesarean section under spinal anaesthesia. Umbilical arterial (UA) and venous (UV) pH and base excess were similar between groups. In ...
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