Successful subarachnoid block following a dry tap in a geriatric patient

Abstract

Rationale: Dry tap' is the absence of cerebrospinal fluid (CSF) despite lumbar puncture needle placement in the thecal sac. Patient Concern: it is a troublesome condition and poses significant challenges. Diagnosis: An experienced anaesthesiologist develops the ability to recognise the needle advancing through the ligaments culminating in a subtle 'pop' or 'give way' to ultimately reach the subarachnoid space, and the needle position is confirmed by a free flow of clear CSF. Intervention: subarachnoid block. Outcomes: successful subarachnoid block following a dry tap in a geriatric patient. Lessons: Spinal anaesthesia can be successful despite a dry tap in experienced hands and may be attempted before resorting to alternative techniques.