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*The constituents of '''Saffan''' are alphadolone acetate 3mg/ml and alphaxalone 9mg/ml. The dose is 6 to 9mg/kg IV or up to 15mg/kg IM. It has been superceded by propofol as an IV anaesthetic.
*The constituents of '''Saffan''' are alphadolone acetate 3mg/ml and alphaxalone 9mg/ml. The dose is 6 to 9mg/kg IV or up to 15mg/kg IM. It has been superceded by propofol as an IV anaesthetic.
==Monitoring/ Maintenance==
==Maintenance==
[[Image:Iguana_maintenance.bmp|200px|thumb|right|'''Maintenance of anaesthesia in an iguana''' (Copyright © RVC and its licensors, Sean Bobbit, Sue Evans, Andrew Devare and Claire Moore. All rights reserved)]]
[[Image:Iguana_maintenance.bmp|200px|thumb|right|'''Maintenance of anaesthesia in an iguana''' (Copyright © RVC and its licensors, Sean Bobbit, Sue Evans, Andrew Devare and Claire Moore. All rights reserved)]]
[[Image:Doppler_iguana.bmp|200px|thumb|right|'''Doppler blood flow monitor positioned for heart sounds''' (Copyright © RVC and its licensors, Sean Bobbit, Sue Evans, Andrew Devare and Claire Moore. All rights reserved)]]
[[Image:Doppler_iguana.bmp|200px|thumb|right|'''Doppler blood flow monitor positioned for heart sounds''' (Copyright © RVC and its licensors, Sean Bobbit, Sue Evans, Andrew Devare and Claire Moore. All rights reserved)]]
Isoflurane is the agent of choice for maintenance of anaesthesia. Propofol by slow intravenous or intraosseous administration can also be used.
Isoflurane is the agent of choice for maintenance of anaesthesia. Propofol by slow intravenous or intraosseous administration can also be used.
Where possible, anaesthetised reptiles should be kept in sternal recumbancy, to help with circulation and prevention of hypotension developing. Monitoring the depth of anaesthesia can be difficult in reptiles but may of the same reflexes and response can be monitored as in other domestic species. It is also important to maintain the patient at its ideal temperature throughout the anaesthetic.
Where possible, anaesthetised reptiles should be kept in sternal recumbancy, to help with circulation and prevention of hypotension developing. It is also important to maintain the patient at its ideal temperature throughout the anaesthetic. Intermittent positive pressure ventilation (IPPV) is necessary.
==Monitoring==
Monitoring the depth of anaesthesia can be difficult in reptiles but may of the same reflexes and response can be monitored as in other domestic species.
Physical reflexes are especially important since lizards at a plane of surgical anaesthesia may suddenly appear fully awake. This probably occurs from trying to maintain the lizard as light as possible. Reflexes and responses include:
Physical reflexes are especially important since lizards at a plane of surgical anaesthesia may suddenly appear fully awake. This probably occurs from trying to maintain the lizard as light as possible. Reflexes and responses include:
*Corneal response.
*Corneal response.
*Jaw tone.
*Jaw tone.
As in other species, cardiovascular and respiratory systems should also be closely monitored. The most important anaesthetic monitoring aid is a Doppler blood flow monitor. A pulse oximeter and an electrocardiograph may also be useful. Advanced monitoring aids include blood gas saturation and capnography. The heart rates of lizards are relatively slow. Normal readings are about 50 bpm. Although readings for pulse oximetry may drop below 70% aim for haemoglobin saturation above 90%.
As in other species, cardiovascular and respiratory systems should also be closely monitored. The most important anaesthetic monitoring aid is a Doppler blood flow monitor. A pulse oximeter and an electrocardiograph may also be useful. Advanced monitoring aids include blood gas saturation and capnography. The heart rates of lizards are relatively slow. Normal readings are about 50 bpm. Although readings for pulse oximetry may drop below 70% aim for haemoglobin saturation above 90%.