Anaesthesia and intensive care
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Anaesth Intensive Care · Jan 2012
Comparative StudyAudit of extrapleural local anaesthetic infusion in neonates following repair of tracheo-oesophageal fistulae and oesophageal atresia via thoracotomy.
In order to reduce postoperative opioid requirement, extrapleural local anaesthetic infusion dosing recommendations and guidelines for extrapleural catheter insertion were developed in our institution for 'extubatable' neonates requiring short-gap neonatal tracheo-oesophageal fistula/oesophageal atresia repair (via thoracotomy) and audited prospectively. Data audited included patient characteristics, analgesia details and ventilation duration. We divided patients into two groups: group 1 - term patients (=36 weeks gestational age) with birth-weights =2.5 kg; group 2 - pre-term patients (<36 weeks gestational age), with birth weights <2.5 kg and those with co-morbidities. ⋯ Most group 1 patients (77%) were extubated immediately postoperatively; 20% had short duration ventilation (median 15 hours, range 11 to 37 hours); one required longer-term ventilation (231 hours). 82% of group 2 were ventilated for a median of 72 hours (range 3 to 140 hours). Review of patients' co-morbidities facilitated guideline revision. These now specify use in neonates requiring short-gap tracheo-oesophageal fistula/oesophageal atresia repair who are term at =36 weeks gestational age and =2.5 kg birth-weight, anticipated as ready for extubation either immediately or shortly after surgery.
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Anaesth Intensive Care · Jan 2012
Randomized Controlled TrialL-arginine cardioplegia reduces oxidative stress and preserves diastolic function in patients with low ejection fraction undergoing coronary artery surgery.
PL-arginine cardioplegia decreases biochemical markers of myocardial damage and oxidative stress in patients with normal left ventricular function. We investigated the effects of L-arginine supplemented cardioplegic arrest in patients with reduced ejection fraction. Fifty-three adult patients with left ventricular ejection fraction <35% undergoing elective coronary artery bypass surgery were randomised to receive blood cardioplegia with or without L-arginine. ⋯ There was no difference in left ventricular systolic function. The mitral annular tissue Doppler inflow (e') velocity during early diastole improved in the L-arginine group following cardiopulmonary bypass (control 4.2 ± 1.9 cm.s(-1) to 3.6 ± 1.2 cm.s(-1) vs L-arginine 3.8 ±1.2 cm.s(-1) to 4.6 ± 1.4 cm.s(-1)) (P=0.018). In patients with reduced ejection fraction, L-arginine supplemented cardioplegic arrest did not affect postoperative cardiac troponin-I levels, but attenuated cardiac cellular peroxidation and improved early left ventricular diastolic function.
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Anaesth Intensive Care · Jan 2012
Laptops and smartphones in the operating theatre - how does our knowledge of vigilance, multi-tasking and anaesthetist performance help us in our approach to this new distraction?
There has been no research performed concerning the effects of the use of laptops and smartphones in the operating theatre on anaesthetist performance, yet these devices are now in frequent use. This article explores the implications of this phenomenon. The cognitive and environmental factors that support or detract from vigilance and multi-tasking are explored and core anaesthetic literature on the nature of anaesthetic work and operating theatre distractions is reviewed. ⋯ All anaesthetists need to be mindful of the limits to the human attention span which requires observation and limiting distractions. Trainees have less experience and less 'attentional' safety margin, so should avoid adding additional distractions such as discretionary use of laptops or smartphones to their operating theatre work. We provide recommendations for future research on the specific advantages and disadvantages of pervasive computing in the operative theatre.
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The aim of this study was to explore the degree and determinants of satisfaction of family members of patients being cared for in an Australasian intensive care unit. This was a prospective observational study that took place within a mixed medical/surgical, level three intensive care unit. One hundred and eight family members of patients staying in the intensive care for more than 48 hours were identified. ⋯ Families who had meetings with the social worker or medical staff were less likely to report dissatisfaction (relative risk 0.14; confidence interval 0.03 to 0.59; P=0.08; relative risk 0.23; confidence interval 0.07 to 0.81; P=0.02). Our study found that the majority of families are happy with their care in the intensive care unit. Social work and medical meetings with the family reduce dissatisfaction.
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Anaesth Intensive Care · Jan 2012
Incidence of difficult intubation in intensive care patients: analysis of contributing factors.
Difficulties in endotracheal intubation increase morbidity and mortality in intensive care patients. We studied the problem in surgical intensive care patients with the aim of risk reduction. Patients intubated in the intensive care unit were evaluated. ⋯ Every intubation in the ICU setting should be considered potentially difficult. The existing algorithm should be modified to incorporate the American Society of Anesthesiologists difficult airway algorithm adapted to the needs of the intensive care unit. A training program for alternative methods of airway management for difficult intubations should be established.