A patient was administered epidural anesthesia with 15 ml of 1.5%. Lignocaine with adrenaline for hernia surgery. He developed hypotension and respiratory depression within 3 minutes after administration of block. The most common cause would be:
Ans. is 'd' i.e., Drug has entered the subarachnoid space Sometimes during epidural analgesia, due to inadvertent suparachnoid injection (i.e. the injection enters the subarachnoid space) a condition termed "total spinal analgesia" is produced. It is produced because large dose of drug which is used in epidural anaesthesia enters the subarachnoid space. (Note: The dose used for subdural anaesthesia is very low compared to epidural anaesthesia) The manifestation of total spinal analgesia are- Marked hypotension Apnoea Dilated pupils Management Patient should be immediately intubated and 100% 02 should be given I.V. fluids and vasopressors should be given
Allergy to drug administered
Systemic toxicity to drug administered
Patient got vasovagal shock
Drug has entered the subarachnoid space
Complications Of Anaesthesia