Search Results
Results 1 - 50 of 1539
1 2 3 4 5 6 7 8 9 10 >
Huttmann Sophie E SE Kliniken der Stadt Köln gGmbH, Witten/Herdecke University Hospital, Department of Pneumology, Cologne-Merheim Hospital, Cologne, Germany ; - - 2014
The relationship between an elevated partial pressure of carbon dioxide (PCO2) and reduced alveolar ventilation resulting from respiratory failure primarily affecting the respiratory pump was first discovered during the 1952 Copenhagen polio epidemic. Several methods for PCO2 estimation, such as blood gas analyses, capnography, and transcutaneous PCO2 measurements, have since ...
Yeung Kristen R KR University of Western Sydney, School of Medicine, Campbelltown, NSW, - - 2014
The aim of this study was to assess agreement between different methods of blood pressure measurement in anaesthetised baboons. Systolic and diastolic blood pressure (SBP and DBP) were measured in anaesthetised baboons using intra-arterial radiotelemetry, automated oscillometry and mercury sphygmomanometry. Correlation between the different methods was assessed. The correlation between ...
Son Won-Gyun WG Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Seoul National University, Seoul, South - - 2014
To determine the effect of injection speed on epidural pressure (EP), injection pressure (IP), epidural distribution (ED) of solution, and extent of sensory blockade (SB) during lumbosacral epidural anesthesia in dogs. Prospective experimental trial. Ten healthy adult Beagle dogs weighing 8.7 ± 1.6 kg. General anesthesia was induced with propofol administered intravenously and ...
Freiermuth D D Department of Anaesthesia and Intensive Care Medicine, University Hospital Basel, CH-4031 Basel, - - 2014
/st>Animal and in vitro studies suggest that volatile anaesthetics affect left atrial (LA) performance. We hypothesized that human LA pump function and dimensions are altered by volatile anaesthetics in vivo. /st>We performed transthoracic echocardiographic (TTE) measurements in 59 healthy subjects (aged 18-48 yr) undergoing minor surgery under general anaesthesia. The ...
Lim Eugene E Department of Plastic and Reconstructive Surgery, The Royal Melbourne Hospital, Melbourne, Victoria, - - 2014
The ability to tolerate a tourniquet is often the limiting factor to elective and emergent procedures of the upper limb performed under local anaesthesia. This study aims to demonstrate that upper limb tourniquets are more predictably and better tolerated when inflated to 200 mmHg than to the traditional inflation pressure of ...
Pratt S D SD Department of Anesthesia, Critical Care and Pain Medicine, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA. Electronic address: - - 2014
During an epidural blood patch, we inject blood until the patient describes mild back pressure, often leading to injection of more than 20mL of blood. We undertook this study to measure the epidural pressures generated during an epidural blood patch and to identify the impact of volume on epidural elastance ...
Kok Madeleine M From the *Department of Radiology, †CARIM School for Cardiovascular Diseases, Departments of ‡Clinical Chemistry, and §Cardiology, Maastricht University Medical Center, Maastricht, The Netherlands; Departments of ∥Neuroradiology, and ¶Nuclear Medicine, University Hospital RWTH Aachen, Aachen, - - 2014
Iodinated contrast media (CM) in computed tomographic angiography is characterized by its concentration and, consecutively, by its viscosity. Viscosity itself is directly influenced by temperature, which will furthermore affect injection pressure. Therefore, the purposes of this study were to systematically evaluate the viscosity of different CM at different temperatures and ...
Modi Manisha P MP Department of Anaesthesia and Critical Care, GR. Doshi and KM Mehta Institute of Kidney Diseases and Research Centre, Asarwa, Ahmedabad, Gujarat, India ; Department of Anaesthesia and Critical Care, Dr. HL Trivedi Institute of Transplantation Sciences, Asarwa, Ahmedabad, Gujarat, - - 2014
To assess outcome from anaesthesia during laparoscopic bilateral simultaneous nephrectomy. Retrospective study. Preoperative Hb%, serum potassium, coagulation profile electrocardiography (ECG) changes, 2D Echography, x-ray chest, haemodynamic changes, end-tidal carbon dioxide (EtCO2), fluid management and postoperative analgesia. The mean age was 24.75 ± 14.35 years. The mean duration of surgery was ...
Chemonges Saul S 0000-0001-7206-137X Critical Care Research Group Laboratory, The Prince Charles Hospital, The University of Queensland, 3rd Floor, Clinical Sciences Building, Rode Road, Chermside, QLD 4032, - - 2014
This study aimed to determine the effect of intermittent positive pressure ventilation (IPPV) on the depth of inhalation anaesthesia in parrots. Anaesthesia was induced with 3.0% isoflurane in six Sulphur-crested Cockatoos (Cacatua galerita galerita) and maintained using either 1.5% or 3.0% during spontaneous ventilation (SV) or IPPV at 6 (IPPV-6) ...
Frey U H UH Klinik für Anästhesiologie und Intensivmedizin, Universität Duisburg-Essen and Universitätsklinikum, Essen, - - 2013
/st>While the β2-adrenoceptor pathway is essential for cardiovascular regulation, the impact of ADRB2 gene variations on circulatory responses is unclear, possibly due to neural compensatory mechanisms. We tested the hypotheses that (i) sympathetic block by thoracic epidural anaesthesia (TEA) unmasks the influence on arterial pressure of genetic variations and (ii) ...
Lovati C - - 2013
Aim: Interactions between blood pressure control, sleep and headache have been largely studied, although not well understood. We designed a study trying to simultaneously evaluate all three aspects in the same subjects. We particularly concentrated on the observation of physiological blood pressure circadian rhythm, and the presence of cutaneous allodynia ...
Colombo Riccardo - - 2013
Surgical plethysmographic index (SPI) has been proposed as a tool to measure the nociception/antinociception balance during general anaesthesia. Untreated nociception may increase sympathetic tone, but the relationship between SPI and the autonomic nervous system (ANS) is poorly understood. We hypothesised that two different levels of SPI might be associated with ...
Sng B L - - 2013
Hypotension necessitating vasopressor administration occurs commonly during caesarean section under spinal anaesthesia. We developed a novel vasopressor delivery system that automatically administers phenylephrine or ephedrine based on continuous non-invasive arterial pressure monitoring. A phenylephrine bolus of 50 μg was given at 30-s intervals when systolic blood pressure fell < 90% of baseline; ...
Staikou C - - 2013
Background: New scientific findings are gradually implemented into daily clinical routine. The present questionnaire survey investigated the current practice in obstetric anaesthesia in Europe. Methods: A 19-point questionnaire on obstetric anaesthesia practices, regarding the techniques, drugs, fluids, vasopressors and safety measures, was uploaded on the site of the European Society ...
Ledowski T - - 2013
The Analgesia Nociception Index has been described to reflect different levels of intraoperative nociceptive stimulation during total intravenous anaesthesia. The association between this index and haemodynamic changes during sevoflurane-based anaesthesia was investigated in 30 patients with the hypothesis that changes in the Analgesia Nociception Index may coincide with or even ...
Salla Kati - - 2013
To compare the haemodynamic effects of three premedicant regimens during propofol-induced isoflurane anaesthesia. Prospective, randomized cross-over study. Eight healthy purpose-bred beagles aged 4 years and weighing mean 13.6 ± SD 1.9 kg. The dogs were instrumented whilst under isoflurane anaesthesia prior to each experiment, then allowed to recover for 60 minutes. Each dog was treated ...
Kim Yang In - - 2013
Rationale: Increased arginine-vasopressin (AVP) secretion is a key physiological response to hyperosmotic stress and may be part of the mechanism by which high-salt diets induce or exacerbate hypertension. Objective: Employing deoxycorticosterone acetate (DOCA)-salt hypertension model rats, we sought to test the hypothesis that changes in GABAA receptor-mediated inhibition in AVP-secreting ...
Kim J Y - - 2013
We report a case of significant reduction in bispectral index (BIS) associated with suspected amniotic fluid embolism (AFE) that occurred prior to change in haemodynamic variables. The patient was a 29-year-old nulliparous, who was admitted for Caesarean section under general anaesthesia in the 33rd week of pregnancy. After the baby ...
Koperwas K - - 2013
In this Letter, we show how temperature and density fluctuations affect the spatially heterogeneous dynamics at ambient and elevated pressures. By using high-pressure experimental data for van der Waals liquids, we examine contributions of the temperature and density fluctuations to the dynamics heterogeneity. We show that the dynamic heterogeneity decreases ...
Franks Rm - - 2013
We suspected that many high blood pressure measurements taken in our anaesthetic pre-assessment clinic and immediately prior to induction of anaesthesia were unusually elevated due to a 'white coat' effect. These high blood pressure measurements were causing late cancellations of surgery, even though white coat measurements may not be representative ...
Jain Rajnish K - - 2013
Anaesthesia ventilators are an integral part of all modern anaesthesia workstations. Automatic ventilators in the operating rooms, which were very simple with few modes of ventilation when introduced, have become very sophisticated with many advanced ventilation modes. Several systems of classification of anaesthesia ventilators exist based upon various parameters. Modern ...
Chakravarti Sucharita - - 2013
Inhalational anaesthetic agents are usually liquids at room temperature and barometric pressure and need to be converted to vapour before being used and this conversion is effected using a vapouriser. Vapourisers have evolved from very basic devices to more complicated ones. Anaesthetists should understand the basic principles of anaesthetic vapouriser, ...
Patil Vijaya P - - 2013
Over the years, the conventional anaesthesia machine has evolved into an advanced carestation. The new machines use advanced electronics, software and technology to offer extensive capabilities for ventilation, monitoring, inhaled agent delivery, low-flow anaesthesia and closed-loop anaesthesia. They offer integrated monitoring and recording facilities and seamless integration with anaesthesia information ...
Ortiz Daniel - - 2013
Perfluorocarbon (PFC) emulsions can transport and release various gases based on concentration gradients. The objective of this study was to determine the possibility of carrying and delivering exogenous nitric oxide (NO) into the circulation by simply loading PFC emulsion with NO prior infusion. PFC was equilibrated with room air (PFC) ...
Iizuka Tomoya - - 2013
Most anaesthetic and analgesic drugs affect the cardiovascular system and can cause intraoperative hypotension (IOH). This study aimed to compare the incidence of IOH in anaesthetised dogs when isoflurane-fentanyl was used, compared to propofol-fentanyl. Intraoperative hypotension was defined as an episode of mean blood pressure below 60mmHg for more than ...
Jo Y Y - - 2013
We investigated the effects of 10 cmH2 O positive end-expiratory pressure on cerebral haemodynamics and cerebral oxygenation in patients undergoing laparoscopic lower abdominal surgery in the 30° Trendelenburg position during desflurane anaesthesia. Twenty-six patients were enrolled in this study. After anaesthesia induction, pneumoperitoneum was applied in Trendelenburg position. Twenty minutes later, ...
Abe Shuji - - 2013
To improve the safety of the use of a power injector for pediatric contrast CT, we newly developed a saline test injection mode for a power injector and investigated its usefulness. We used an injection route and investigated the relationship of the injection pressure to the injection rate of saline ...
Chu Edward R - - 2013
Anaesthesia may affect steady state intraocular pressure (IOP) and its interpretation in glaucoma studies involving mice. Ketamine is a commonly used anaesthetic but it lowers mouse IOP.(1-5) An alternative such as gentle restraint (e.g. cone restraint) without anaesthesia has been used to avoid this undesirable effect,(1) but restraint itself can ...
Leal Anna K - - 2013
The blood pressure response to exercise is exaggerated in hypertension. Recent evidence suggests that an overactive skeletal muscle mechanoreflex contributes significantly to this augmented circulatory responsiveness. Sensory information from the mechanoreflex is processed within the nucleus tractus solitarii (NTS) of the medulla oblongata. Normally, endogenously produced nitric oxide (NO) within ...
Li Aihua - - 2013
In normal rats, central administration of orexin, or certain stress exposures, can induce significant increases in blood pressure and sympathetic nerve activity (SNA), which can be blocked by orexin receptor antagonists. The resting blood pressure is, however, unaffected by such antagonists, but is significantly lower in rodents with total loss ...
Hayashi Ayato - - 2013
Subcutaneous hematoma is commonly caused by trauma or surgery. Proper treatment of the condition is needed to avoid severe complications. The present paper introduces a simple technique of hematoma evacuation, called cylinder syringe suction (CSS). Experiments were also performed to determine the detailed mechanism underlying its effectiveness. The CSS procedure ...
Santos M - - 2013
The effect of a single hyperinflation using a sustained high-pressure manoeuvre (SHPM) during inhalation anaesthesia was evaluated in horses. Twenty-eight client-owned male horses were recruited; 14 were operated on in dorsal recumbency and 14 in lateral recumbency. For each category, horses were randomly allocated to either the 'breathing spontaneously' or ...
Rysnik Maja K - - 2013
OBJECTIVE: To compare high definition oscillometry (HDO) to invasive blood pressure measurement in anaesthetized dogs. STUDY DESIGN: Prospective, clinical trial. ANIMALS: Fifty dogs weighing 1.95-79 kg (mean 23.5 kg). MATERIALS AND METHODS: Anaesthetic and peri-anaesthetic management was chosen according to each dog's physical status and anaesthetist's preference. Direct arterial blood pressure measurements ...
Vaughan Neil - - 2013
The amount of pressure exerted on the syringe and the depth of needle insertion are the two key factors for successfully carrying out epidural procedure. The force feedback from the syringe plunger is helpful in judging the loss of pressure, and the depth of the needle insertion is crucial in ...
Ozer A B - - 2013
Context: Endotracheal tube cuff pressure (ETCP) is recommended to be maintained between 20-30 cm H2O limits. While insufficient inflation of ETC may cause aspirations, over-inflation of it may lead to damage in tracheal epithelium. Aims: We planned to investigate the effects of user experience and cuff pressure inflation method differences ...
Ypsilantis P - - 2013
This study was designed to evaluate the oscillometric technique for intermittent non-invasive measurement of arterial pressure (AP) in the anaesthetized pig. In six pigs under sevoflurane anaesthesia, intermittent (every 2 minutes) oscillometric measurements of AP made at a forelimb (FL), a hindlimb (HL) and the tail base were compared with ...
Toyama S - - 2013
BACKGROUND: /st>Hypotension during spinal anaesthesia for Caesarean delivery is a result of decreased vascular resistance due to sympathetic blockade and decreased cardiac output due to blood pooling in blocked areas of the body. Change in baseline peripheral vascular tone due to pregnancy may affect the degree of such hypotension. The ...
Gruenewald M - - 2013
BACKGROUND: /st>Measurement of the balance between nociception and anti-nociception during anaesthesia is challenging and not yet clinically established. The Surgical pleth index (SPI), derived from photoplethysmography, was proposed as a surrogate measure of nociception. Recently, the analgesia nociception index (ANI) derived by heart rate (HR) variability was developed. The aim ...
Koeva Vesselina - - 2013
PURPOSE: Multiple sclerosis (MS) is a chronic inflammatory and degenerative disease of the central nervous system resulting in demyelination and axonal injury. Epidural blood patch (EBP) to treat postdural puncture headache (PDPH) in an MS patient may be of concern because of the potential for this to interfere with axonal ...
Obasuyi B I - - 2013
BACKGROUND: Hypotension during spinal anaesthesia occurs commonly in parturients. By influencing spread of local anaesthetic, maternal position may affect the speed of onset of sensory block and thus the haemodynamic effects. The aim of this study was to determine whether inducing spinal anaesthesia for caesarean section using plain bupivacaine in ...
Arany-Tóth Attila - - 2013
OBJECTIVE: To measure subarachnoid pressures, systemic circulatory and respiratory effects, and to calculate cerebral perfusion pressure during cisternal myelography. STUDY DESIGN: Prospective clinical study. ANIMALS: Forty-three client owned dogs with clinical signs of spinal disease, weighing 6-56 kg. METHODS: Dogs were premedicated with butorphanol and diazepam intravenously (IV) and anaesthesia was ...
Bradbrook Carl A - - 2013
Objective  The aim of this study was to investigate normal values for the dynamic compliance of the respiratory system (Crs) and respiratory system resistance (Rrs) in mechanically ventilated anaesthetized dogs. Study design  Prospective clinical study. Animals  Forty healthy dogs undergoing elective orthopaedic surgery. Body weight was (mean ± SD) 26.8 ± 10.7 kg (range: 1.9-45.0 kg), ...
Samhan Yasser M - - 2013
We are introducing a new continuous hydrostatic pressure system for identification and catheterization of epidural space in adults. One hundred and eight patients scheduled for elective endoscopic urological procedures were enrolled in this prospective randomized study. They were assigned to perform loss of resistance epidural technique by either the conventional ...
Wallon G - - 2013
BACKGROUND: /st>Tidal volume (V(T)) must be accurately delivered by anaesthesia ventilators in the volume-controlled ventilation mode in order for lung protective ventilation to be effective. However, the impact of fresh gas flow (FGF) and lung mechanics on delivery of V(T) by the newest anaesthesia ventilators has not been reported. METHODS: ...
Shimada Akiko - - 2013
A single intake of monosodium glutamate (MSG) may cause headache and increased muscle sensitivity. We conducted a double-blinded, placebo-controlled, crossover study to examine the effect of repeated MSG intake on spontaneous pain, mechanical sensitivity of masticatory muscles, side effects, and blood pressure. Fourteen healthy subjects participated in 5 daily sessions ...
Gautam Shefali - - 2013
Takayasu arteritis is a rare, chronic idiopathic, occlusive inflammation of the aorta and its major branches. It is a rare form of non-specific obliterative panarteritis of unknown aetiology. Anaesthesia for the patient with Takayasu arteritis is complicated by severe uncontrolled hypertension leading to end organ dysfunction, stenosis of major blood ...
Pai Rohini V Bhat - - 2013
Hypertrophic obstructive cardiomyopathy (HOCM) is a challenge to anesthesiologists due to the complex pathophysiology involved and various perioperative complications associated with it. We present a 50-year-old man, a known case of HOCM, who successfully underwent emergency haemostasis, and debridement of the traumatically amputated right upper limb and the contused lacerated ...
Narasimha Prasad Krishnamurthy - - 2013
Takayasu's arteritis (TA) is rare, chronic progressive, pan-endarteritis involving the aorta and its main branches, with a specific predilection for young Asian women. Anaesthesia for TA patients is complicated by their severe uncontrolled hypertension, extreme arterial blood pressure differentials, aortic regurgitation (AR), end-organ dysfunction, stenosis/aneurysms of major blood vessels and ...
Al-Abed Yahya A - - 2013
To conduct a study to measure the pressure effects of the different scrotal supports applied on a simulated expanding scrotal hematoma. We created a model of an expanding hematoma with simultaneous pressure recording using a urodynamics system. Pressures were recorded independently first without application of any support. Then, three types ...
Shahzad Khurrum - - 2013
To compare the effect of induction position on block characteristics (sensory and motor nerves) and haemodynamic stability in elderly patients with isobaric bupivacaine. Patient comfort was also looked at. The randomized single blinded study was conducted at the Aga Khan University Hospital, Karachi, from September 2007 to August 2008. A ...
1 2 3 4 5 6 7 8 9 10 >