In this paper, feasibility of web based breathing exercises for respiratory rehabilitation is examined. A system included visual guidance in a web browser and a microphone equipped headset for biofeedback and interaction. Feasibility was assessed in a controlled environment on 34 subjects with anxiety disorders that were not offered any help from the personnel. Weak points of comprehensibility were identified as applying headset (21%) and adhering to breathing exercises instructions (7%). No adverse events were identified. Design flaws that correlated with poor user's experience were 1) the unpleasant feelings induced by watching the computer screen (21%) and 2) ease/difficulty of physically applying headset (14%). We conclude that conducting breathing exercises by using an acoustic microphone and a web browser is feasible and should be further researched. Additionally we conclude that audio feedback might be more pleasant to some people.

We hereby present a short overview of the anaesthesiological considerations regarding the patient with Charcot-Marie-Tooth disease also known as hereditary muscle and sensory neuropathy, which affects peripheral nerves and muscles. Due to pathophysiology of the disease certain anaesthesiological complications associated with HMSN can be related. A case report describing protocol of the total venous anesthesia in the 17-year old patient operated on sacral dermoid with fistulae is presented. The patient recovered without any further complications. In the conclusion we would like to bring the importance of awareness to prepare the HMSN patient for a surgical procedure as well from anesthesiological as from surgical point of view to avoid possible unwanted event such as malignant hyperthermia, hyperkalemia, seizures, prolonged effect of muscle relaxants and worsening of the disease. As an important alternative to general anesthesia regional anesthesia should be considered.