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P Hopkins, S Patel
No abstract text is available yet for this article.
October 17, 2016: Anaesthesia
N H Sperna Weiland, D Breevoord, D A Jöbsis, E M F H de Beaumont, V Evers, B Preckel, M W Hollmann, S van Dieren, B A J M de Mol, R V Immink
Despite a rise in blood pressure, cerebral oxygenation decreases following phenylephrine administration, and we hypothesised that phenylephrine reduces cerebral oxygenation by activating cerebral α1 receptors. We studied patients on cardiopulmonary bypass during constant flow. Phenylephrine raised mean arterial pressure (α1 -mediated) from mean (SD) 69 (8) mmHg to 79 (8) mmHg; p = 0.001, and vasopressin raised mean arterial pressure (V1 mediated) from 69 (8) mmHg to 83 (6) mmHg; p = 0.001. Both drugs elicited a comparable decrease in cerebral oxygenation from 61 (7)% to 60 (7)%; p = 0...
October 17, 2016: Anaesthesia
B A McGrath, S Ruane, J McKenna, S Thomas
Disposable bronchoscopes such as the Ambu aScope(TM) 3 are marketed as 'single use' The risks of contamination from prolonged device storage before possible re-use are unknown. Following clinical bronchoscopy in patients whose lungs were mechanically ventilated, 20 aScope(TM) 3's bronchoscopes received a standard 'social clean' and were then stored. Subsequent paired saline flush and swab samples were taken at time zero, and at 24 h and 48 h. Positive microbiological cultures were obtained from at least one time point from 16 of the 20 bronchoscopes...
October 17, 2016: Anaesthesia
S D Adhikary, K El-Boghdadly, Z Nasralah, N Sarwani, A M Nixon, K J Chin
We performed bilateral transmuscular quadratus lumborum blocks in six cadavers using iodinated contrast and methylene blue. Computed tomography imaging was performed in four cadavers and anatomical dissection was completed in five. This demonstrated spread to the lumbar paravertebral space in 63% of specimens, laterally to the transversus abdominis muscle in 50% and caudally to the anterior superior iliac spine in 63% of specimens. There was no radiographic evidence of spread to the thoracic paravertebral space...
October 12, 2016: Anaesthesia
J J Pandit, J Matthews, M Pandit
No abstract text is available yet for this article.
October 7, 2016: Anaesthesia
M Charlesworth, M Mort, A F Smith
Previous studies of critical care admissions have largely compared patients that have been granted or declined admission. To better understand the decision process itself, our ethnographic approach combined observation of and interviews with critical care physicians in a large English hospital. We observed 30 critical care doctors managing 71 referrals and conducted ten interviews with senior decision-makers to explore the themes raised by our observations. We analysed data using the constant comparative method...
October 7, 2016: Anaesthesia
R Kearns, A Macfarlane, A Grant, K Puxty, P Harrison, M Shaw, K Anderson, J Kinsella
We performed a single centre, double blind, randomised, controlled, non-inferiority study comparing ultrasound-guided fascia iliaca block with spinal morphine for the primary outcome of 24-h postoperative morphine consumption in patients undergoing primary total hip arthroplasty under spinal anaesthesia with levobupivacaine. One hundred and eight patients were randomly allocated to receive either ultrasound-guided fascia iliaca block with 2 levobupivacaine (fascia iliaca group) or spinal morphine 100 μg plus a sham ultrasound-guided fascia iliaca block using saline (spinal morphine group)...
October 7, 2016: Anaesthesia
M Heesen, M Klimek, R Rossaint, G Imberger, S Straube
We examined whether paravertebral block has an effect on the prevalence of persistent postsurgical pain after breast surgery. Seven randomised, controlled trials (559 patients) which had the outcome assessor blinded were included, comparing patients who received paravertebral blocks after breast surgery with patients who did not. The risk ratio (95% CI) was 0.75 (0.48-1.15) for the incidence of postoperative pain at 3 months (four studies, 317 patients); the risk ratio (95% CI) obtained from three studies including 301 patients reporting on pain after 6 months was 0...
October 7, 2016: Anaesthesia
S M Kendale, P N Lapis, S M Melhem, J D Blitz
We used multivariate analyses to assess the association of pre-operative variables with kidney function in 41,523 adults after scheduled surgery in a single large academic hospital. Eight variables were independently associated with a reduction in postoperative estimated glomerular filtration rate: pre-operative renal function; age; ASA physical status; cardiac failure; anaemia; cancer; type of surgery; and the lowest quartile of pre-operative mean arterial blood pressure (< 71 mmHg). The estimated glomerular filtration rate fell by a mean (95% CI) of 2...
October 5, 2016: Anaesthesia
M Kleine-Brueggeney, R Greif, N Urwyler, B Wirthmüller, L Theiler
We compared the Bonfils(™) and SensaScope(™) rigid fibreoptic scopes in 200 patients with a simulated difficult airway randomised to one of the two devices. A cervical collar inhibited neck movement and reduced mouth opening to a mean (SD) of 23 (3) mm. The primary outcome parameter was overall success of tracheal intubation; secondary outcomes included first-attempt success, intubation times, difficulty of intubation, fibreoptic view and side-effects. The mean (95% CI) overall success rate was 88 (80-94)% for the Bonfils and 89 (81-94)% for the SensaScope (p = 0...
September 27, 2016: Anaesthesia
P A Ward, M G Irwin
No abstract text is available yet for this article.
September 27, 2016: Anaesthesia
P Schraverus, M M Kuijpers, J Coumou, C A Boly, C Boer, S van Kralingen
Morbidly obese patients are at increased risk of intra-operative haemodynamic instability, which may necessitate intensive monitoring. Non-invasive monitoring is increasingly used to measure cardiac output; however, it is unknown whether the weight-based algorithm utilised in these devices is applicable to patients with morbid obesity. We compared the level of agreement and trending ability of non-invasive cardiac output measurements (Nexfin(®) ) with the gold-standard thermodilution technique in 30 morbidly obese patients undergoing laparoscopic surgery...
September 26, 2016: Anaesthesia
J Shahin, P Ferrando-Vivas, G S Power, S Biswas, S T Webb, K M Rowan, D A Harrison
The models used to predict outcome after adult general critical care may not be applicable to cardiothoracic critical care. Therefore, we analysed data from the Case Mix Programme to identify variables associated with hospital mortality after admission to cardiothoracic critical care units and to develop a risk-prediction model. We derived predictive models for hospital mortality from variables measured in 17,002 patients within 24 h of admission to five cardiothoracic critical care units. The final model included 10 variables: creatinine; white blood count; mean arterial blood pressure; functional dependency; platelet count; arterial pH; age; Glasgow Coma Score; arterial lactate; and route of admission...
September 26, 2016: Anaesthesia
J Dingley, D Williams, P Douglas, M Douglas, J O Douglas
The objective was to develop a sodium percarbonate/water/catalyst chemical oxygen generator that did not require compressed gas. Existing devices utilising this reaction have a very short duration of action. Preliminary experiments with a glass reaction vessel, water bath and electronic flowmeter indicated that many factors affected oxygen production rate including reagent formulation, temperature, water volume and agitation frequency. Having undertaken full-scale experiments using a stainless steel vessel, an optimum combination of reagents was found to be 1 litre water, 0...
September 26, 2016: Anaesthesia
I J de Heer, H Tiemeier, S E Hoeks, F Weber
We analysed the association of independent variables with non-verbal cognition at 6 years in children with complete data (3441 from a cohort of 9901), of whom 415 were anaesthetised before the age of 5 years. Using multivariable regression, cognition was reduced by a mean (95% CI) score for children: anaesthetised before the age of 5 years, 2.1 (0.7-3.5), p = 0.004; born prematurely, 9.8 (4.1-15.4), p = 0.001; whose mothers smoked while pregnant, 2.3 (0.8-3.8), p = 0.004; whose mothers had lower IQ scores, 0...
September 26, 2016: Anaesthesia
K K Dhatariya, M D Wiles
No abstract text is available yet for this article.
September 26, 2016: Anaesthesia
N Fletcher
No abstract text is available yet for this article.
September 26, 2016: Anaesthesia
S H Lee, H J Ahn, S M Yeon, M Yang, J A Kim, D M Jung, J H Park
Atrial fibrillation is the most frequent arrhythmia after thoracic surgery and is associated with increased hospital costs, morbidity and mortality. In this study, we aimed to identify potentially modifiable risk factors for postoperative atrial fibrillation following lung resection surgery and to suggest possible measures to reduce risk. We retrospectively reviewed the medical records of 4731 patients who underwent lobectomy or more major lung resection over a 6-year period. Patients who developed atrial fibrillation postoperatively and required treatment were included in the postoperative atrial fibrillation group, while the remaining patients were assigned to the non-postoperative atrial fibrillation group...
September 26, 2016: Anaesthesia
T K Kim, K Nam, Y J Cho, J J Min, Y J Hong, K U Park, D M Hong, Y Jeon
The infusion of fluids to patients may affect tissue microcirculation and the endothelial glycocalyx. However, the effects of hydroxyethyl starch and crystalloid on endothelial glycocalyx degradation and microvascular reactivity have not been evaluated in detail. We hypothesised that hydroxyethyl starch may cause less endothelial glycocalyx degradation and better microvascular reactivity than that caused by crystalloid. We randomly allocated 120 patients undergoing off-pump coronary artery bypass graft surgery to receive up to 20 ml...
September 26, 2016: Anaesthesia
J M Huitink, P P Lie, I Heideman, E P Jansma, R Greif, N van Schagen, A Schauer
The aim of this study was to develop an audit tool to identify prospectively all peri-operative adverse events during airway management in a cost-effective and reproducible way. All patients at VU University Medical Center who required general anaesthesia for elective and emergency surgical procedures were included during a period of 8 weeks. Daily questionnaires and interviews were taken from anaesthesia trainees and anaesthetic department staff members. A total of 2803 patients underwent general anaesthesia, 1384 men and 1419 women, including 2232 elective patients and 571 emergency procedures, 697 paediatric and 2106 adult surgical procedures...
September 26, 2016: Anaesthesia
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