The Development and Impact the First Irish Nurse-Led Lumbar Puncture Clinic in a Regional Specialist Memory Clinic

Abstract

Abstract Background A Regional Specialist Memory service assesses complex cases of cognitive impairment, requiring a comprehensive diagnostic assessment. Lumbar punctures (LP's) are the definitive procedure to identify Alzheimer's Disease. The highest limitation to LP access is shortage and availability of specially trained medical staff. Cognitive centres across Europe have been training nurses (Advanced Nurse Practitioner) to perform LPs since 2006. A nurse led service was established in April 2023 in a large Irish teaching hospital. Methods This analysis data represents a preliminary 5-month audit of an ANP Led LP service (ALLPS) compared to prior service provision (ALLPS n=40, pre-ALLPS n=20). Waiting time for LP prior to ALLPS averaged 25 weeks, which reduced by over 50% (12 weeks). Results CSF results were identified in half the time with ALLPS (3 weeks versus 6 weeks). The initiation of the ALLPS reduced the timeframe to diagnosis from 12 weeks to 5 weeks. This led to an average wait time reduction from date of CSF result to disclosure of diagnosis of 53% (15 weeks pre-ALLPS to 8 weeks). The ALLPS is pioneering the use of a seated upright LP procedural position, reported to be comfortable by this cohort. Analysis of the nurse led LP procedure is comparative with medical LP services. Almost 40% were achieved on 1st attempt, a further 28% on 2nd attempt, with 18% on 3rd attempt. The ANP successfully completed 75% of LPs in this initial cohort with 9 patients requiring supervisor LP performance. One case required x-ray guided LP. Conclusion Appointment of a dedicated ALLPS service has reduced waiting times for diagnostic intervention, leading to early diagnosis, accessing post diagnostic support, meeting best practice guidelines outlined by the National Dementia Office.