Anaesthesia stages

Definition The American anaesthetist Arthur Guedel established in 1920 in studies that anaesthesia consists of different stages. These can be distinguished by reflexes, pupil width, movements, pulse, respiratory drive and consciousness of the patient. Guedel observed these stages during ether anaesthesia and they can only be transferred to a pure gas anaesthesia and not to … Anaesthesia stages

Stage 3 | Anaesthesia stages

Stage 3 The third stage is the tolerance stage and the desired state during the surgical procedure. The beginning of this stage is the end of involuntary muscle twitches. The cerebrum, midbrain and also the spinal cord are now completely inhibited. This leads to the loss or strong inhibition of reflexes and muscle tone. The … Stage 3 | Anaesthesia stages


General Anaesthetics (general anaesthetics) are substances that are generally used before major surgery to ensure that patients are neither conscious nor in pain during the operation, that reflexes are switched off and that muscles are relaxed. Nowadays, several drugs are usually used in combination to achieve the best possible results with as few side effects … Anaesthetics

Anaesthetic gas | Anaesthetics

Anaesthetic gas Anaesthetic gases are anaesthetics that are administered via the respiratory tract and are distributed in the blood via the lungs. The substances can be divided into two different groups. On the one hand, the substances that are gaseous at room temperature, nitrous oxide and xenon, and on the other hand the so-called volatile … Anaesthetic gas | Anaesthetics

Maintenance of anaesthesia | Anaesthetics

Maintenance of anaesthesia Anaesthesia is usually maintained according to a balanced model. This means that anaesthetic gas and intravenously administered medication are used in combination. Under certain circumstances, purely intravenous maintenance may be necessary, in which the medication is administered in exact doses via syringe pumps. A purely inhaled maintenance of anaesthesia is possible by … Maintenance of anaesthesia | Anaesthetics

The anaesthetic induction

Definition Anaesthesia induction is the process of preparing the patient for anaesthesia, an artificially induced state of unconsciousness and painlessness. These preparations follow a fixed scheme. The anaesthetic induction is followed by the anaesthetic continuation, during which this state of unconsciousness is maintained until the operation is finished and the patient can wake up from … The anaesthetic induction