ANAESTHESIA PG course Dr Mithilesh Kumar Assistant Professor cum Jr Scientist ID: 1035891
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1. Clinical Practice-II(VSR-603)ANAESTHESIAPG course Dr. Mithilesh Kumar Assistant Professor cum Jr. Scientist Dept. of Surgery & Radiology Bihar Veterinary College, Patna
2. AnaesthesiaLocal AnaesthesiaRegional AnaesthesiaGeneral AnaesthesiaSurgical Anaesthesia : Unconsciousness where adequate muscular relaxation produced.
3. Analgesia :- Loss of painTranquilisation : Behavioural change in which patient is relaxed but unconcerned with surrounding.Sedation : Mild central depression when patient is awake but calm.Narcosis : Deep sleep accompanied by analgesia.Hypnosis: artificially induced sleep and results from moderate depression of CNS.
4. Anaesthetic agent : Produces both unconsciousness and absence of response.Analgesic agent :- Temporarily abolishes awareness of pain.Narcotic : Produce insensibility from which simple stimuli can achieve.Hypnotic : used to induce sleep.Sedative : used to calm a nervous, excited animal.Tranquiliser :- Produce sedation.
5. Selection of anaesthetic agent depends on :Time required to perform a surgical procedure : Ultra short acting and Inhalant anaesthetic agent.The metabolic rate of an animal : Young animal has low metabolism.Age of the animal : Aged animals are poor anaesthetic risk.Breed : Brachycephalic having pendulous soft palate and restricted respiratory passage.
6. Species differences : Regional anaesthesia desirable in cattle, buffalo and goat.Type Surgery /Surgeon : Barbiturate are contraindicated for CS. Positive pressure surgery used for thorax.Physical state or health of animal: patients with no detectable disease can be given barbiturate, non barbiturate or inhalation agentSystemic disease like uraemia, toxaemia may have altered hepatic and kidney function, Inhalation agents preferred.
7. Availability of equipment's and personnel:- Qualified anaesthetist.Art of anaesthesia.
8. Local Anaesthetic Agents:-Cocaine hydrochloride- Surface anaesthesia for cornea and Conjunctiva Procaine hydrochloride-Non irritant and non toxic. Poor mucouos membrane penetration. Butacaine- Surface anaesthesia for eye, nose and throat
9. Amethocaine:- 1% solution is used for instillation into eye.Tetracaine:- Drug of choice for corneal anaesthesia Lignocaine hydrochloride :-Surface and injectable anaestheticTutocaine hydrochloride:- Derivative of procaine, Infiltration anaesthesia
10. Mepivacaine hydrochloride:- Similar to lignocaine.Bupivacaine hydrochloride (Morcain):- 0.5%solution is equivalent to 2% Lignocaine.Ethyl chloride:- Surface anaesthesia - removes heat and freezes the area.