Research Abstract: Free Paper - Poster Presentation Only Australian and New Zealand Society for Geriatric Medicine Annual Scientific Meeting 2023

Older Patients Undergoing Laparotomy in a Tertiary Acute Surgical Unit with an Integrated Older Adult Surgical Inpatient Service (OASIS) (#158)

Ryan Teh 1 , Anand Trivedi 1 , Louis Connell 1 2 , Kumarasinghe Anuttara Panchali W 1 2 3
  1. Acute Surgical Unit, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
  2. The University of Western Australia, Nedlands, Western Australia, Australia
  3. Curtin Medical School, Curtin University, Bentley, Western Australia, Australia

Aims. To describe older adults undergoing emergency laparotomy (EL) in a tertiary acute surgical unit (ASU), receiving proactive geriatric medicine input.

Methods: Baseline clinical data prospectively collected on older adults (over 65-years), receiving proactive geriatric medicine input via Older Adult Surgical Inpatient Service (OASIS). Business data identified all EL performed over 12-months, from April 2021. Outcome data assessed via review of electronic medical record.

Results: Of 114 older adults undergoing EL in our ASU, 96%(n=109) had OASIS review.

Of those reviewed, average age was 76.75±7.61 years (range 65-96). Majority were from home 99.1%(n=108) and mobilised independently 67.9% (n=74). 11%(n=12) used a walking-stick, 8.3% (n=9) walking-frame and 12.8%(n=14) four-wheeled-walker. Medical comorbidities included hypertension, ischemic heart disease, congestive cardiac failure, obstructive airway disease and diabetes. 32.1%(n=35) had atrial fibrillation, with 82.9%(n=29) on anticoagulation. 12.8%(n=14) were severely frail (clinical frailty score (CFS) 6-9,), 40.3%(n=44) mildly frail (CFS 4-5) and 46.8%(n=51) not frail (CFS 1-3).

OASIS was involved in medication changes, goals of care decisions, anticoagulant and antiplatelet management, perioperative risk assessment and discharge planning.

In hospital mortality was 6.4%(n=7). Average length of stay 13.99±13.59 days (range 4-97), and 29.4%(n=32) required intensive care. 67.9%(n=74) were directly discharged home, 25.7%(n=26) requiring home rehabilitation. 26.6%(n=29) required inpatient rehabilitation. 16.5%(n=18) were readmitted within 30-days, and a further 11%(n=12) within 90-days.

Conclusion: 96% of all older adults undergoing EL in our ASU were reviewed by OASIS. Older adults undergoing EL at our institution have frailty, medical comorbidity and requirement of rehabilitation post-operatively, where proactive geriatric medicine can optimise patient care.