Editor—For selected surgical procedures, the use of peripheral regional anaesthetic blocks may avoid general anaesthesia and increase the efficiency of the surgical pathway. However, evidence on peripheral truncal anaesthetic blocks is scarce. Even though non-intubated video-assisted thoracoscopic surgery (VATS) has been reported under local anaesthesia showing safety, feasibility and favourabl...

BACKGROUND Interscalene brachial plexus (ISB) block is often associated with phrenic nerve block and diaphragmatic paresis. The goal of our study was to test if the anterior or the posterior ultrasound guided approach of the ISB is associated with a lower incidence of phrenic nerve blocks and impaired lung function. METHODS This was a prospective, randomized and single-blinded study of 84 pat...

BACKGROUND AND AIMS Various additives have been evaluated for the purpose of enhancing quality of analgesia and prolonging duration of spinal anesthesia. This randomized, double-blind study was conducted to evaluate the efficacy of intravenous dexamethasone in spinal anesthesia. METHODS A total of sixty patients scheduled for lower segment cesarean section under spinal anesthesia were randoml...

This paper proposes some techniques to improve algebraic fault analysis (AFA). Firstly, we show that building the decryption equation set of a cipher can accelerate the solving procedure. Secondly, we propose a method to represent the injected faults with algebraic equations when the accurate fault location is unknown. We take Piccolo as an example to illustrate our AFA and compare it with prev...

We have investigated the effect of infusion of nimodipine on the spread of spinal anaesthesia in 50 patients undergoing transurethral procedures. Patients were allocated randomly to receive during operation continuous infusion of nimodipine 10 ml h-1 (group N, n = 25) or normal saline (group C, n = 25) in a double-blind manner. All patients received hyperbaric lidocaine 100 mg (5% in 8% dextros...

De ning exible and consistent methods and artefacts to design for social impact is a current challenge for HCI. The ephemeral and vulnerable conditions of people living as refugees add even more questions about the suitability of design methods to the complexity of real — and many times tough — life . In this position paper we brie y introduce two concepts embraced by the Socially-aware Design ...

The Substitution-Permutation Network (SPN) is a main type of structure in block ciphers. This paper proposes a new and practical differential fault attack technique on SPN structure. As an instance of SPN cipher, AES-256 can be recovered by 4 faulty ciphertexts. Compared with the previous techniques, our work can recover all subkeys of an SPN cipher with all key sizes. Therefore, our attacking ...

Eleven patients with spinal canal block from metastatic epidural tumor, documented with Pantopague myelography, were given an additional injection of up to 5 cc of air. This technique forced contrast material past the block in 10 of 11 cases. It failed in one case in which symptoms had been present for 19 days. Air injection allowed visualization of more cephalad lesions and defined the superio...

Surveys were sent to Harvard School of Dental Medicine students and graduates from the classes of 2000 through 2006 to determine their current primary means of achieving mandibular anesthesia. Orthodontists and orthodontic residents were excluded. All subjects received clinical training in the conventional inferior alveolar nerve block and two alternative techniques (the Akinosi mandibular bloc...

Early Alzheimer's disease (AD) pathophysiology is characterized by synaptic changes induced by degradation products of amyloid precursor protein (APP). The exact mechanisms of such modulation are unknown. Here, we report that nanomolar concentrations of intraaxonal oligomeric (o)Abeta42, but not oAbeta40 or extracellular oAbeta42, acutely inhibited synaptic transmission at the squid giant synap...