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BACKGROUND Thoracic epidural analgesia is beneficial after major abdominal surgery, though side-effects and complications are rare but potentially devastating. The incidence of catheter-related infection is approximately 5.5%. Several guidelines have been recommended to prevent complications during thoracic epidural catheterization. Tunnelling is often recommended to reduce the incidence of infections and dislocations. METHODS A retrospective, single-centre analysis of our acute pain service database was performed between 2010 and 2018. The hygiene measures of the German Society of Anaesthesiology have been incorporated in our standard operating protocol since 2009. The procedure remained constant, but the skin disinfectant was changed from propan-2-ol to propan-2-ol with octenidine in 2014. Tunnelling of catheters was not performed. We analysed the incidence of catheter-related infections (primary endpoint) and effect of the used disinfectant (secondary endpoint). RESULTS A total of 2755 patients underwent elective major abdominal surgery with thoracic epidural catheterization. Sixteen patients (0.6%) showed symptoms of mild catheter-related infection. Moderate or severe infections were not observed in any patient. The type of disinfectant did not show any significant effect on the incidence of infection. CONCLUSION The incidence of catheter-related infections was low, and only mild signs of infection were observed. Non-tunnelling could be an alternative to tunnelling, especially if hygiene protocols are followed, and the duration of catheter use is short. A comprehensive database and regular examinations by trained staff are essential for early detection of abnormalities and immediate removal of the catheter, if required.

Background: Duchenne muscular dystrophy (DMD) is an X-linked recessive skeletal muscle myopathy which is caused by mutations in the dystrophin gene. Lack of dystrophin also results to cardiomyopathy, which raises significantly the stroke risk in DMD-patients. However, data about therapeutic opportunities in the acute setting are scarce in literature. So far, only two cases receiving IV thrombolysis are described, one of them with fatal outcome. Method: Case report of a case of successful mechanical thrombectomy (MTE) in an acute ischemic stroke (AIS) patient with DMD and associated dilatative cardiomyopathy. Results: A 20-year old DMD-patient was transferred at 08:56 h to our department due to wake up stroke with severe right-sided hemiparesis and aphasia (NIHSS=20). Last-seen-normal was at 03:00 h. Cerebral CT-scan revealed only slight early ischemic changes (ASPECT-Score=8). CT-angiography detected occlusion of left middle cerebral artery (LMCA). MTE started rapidly at 9:23 h and using direct thrombus aspiration (Penumbra System®) complete recanalization was achieved 20 min later (TICI-grade 3). Considering the specific risks of general anesthesia in DMD, the procedure was performed with propofol, remifentanil and rocuronium. The patient recovered quickly from the acute symptoms, due to preexisting hypotonic tetraparesis his NIHSS-score at discharge was 12 points. Conclusions: To the best of our knowledge, this is the first report on MTE in a patient with DMD related cardioembolic stroke. In contrast to the few reports with IV thrombolysis, MTE seems to represent an optimal treatment option. Specific characteristics of DMD-patients like anesthetic regimen should be taken into account.

The new MIRUS™ system as well as the established AnaConDa® system uses a reflector to conserve volatile anaesthetics (VA) [1]. Both systems act with commercially available ICU ventilators. In contrast to AnaConDa®, MIRUS™ includes an automated control of end-tidal VA concentrations. In this study we compared feasibility, costs and recovery times after anaesthesia with isoflurane (ISO), sevoflurane (SEVO) or desflurane (DES) in ventilated and spontaneously breathing patients.