Observational studyBritish journal of anaesthesia2025
SNAP-3: characteristics of specific subgroups of older patients undergoing surgery in the UK.
Observational study in British journal of anaesthesia, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Article
- Postoperative outcomes in older patients with postoperative delirium in the UK: SNAP-3, a snapshot observational study.British journal of anaesthesia · 2026Observational
Corrections and comments
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe SNAP-3 study reported one in five older surgical patients in the UK were living with frailty and two in three with multimorbidity. We now report characteristics and outcomes of specific subgroups of patients including individuals aged ≥85 yr, undergoing day or inpatient surgery and elective or emergency surgery, and undergoing common specialty procedures including orthopaedics, urology, colorectal surgery, and hip arthroplasty.
methodsThis prospective observational cohort study recruited patients aged ≥60 yr undergoing surgery during five days in March 2022 across 214 UK hospitals. Daycase, inpatient, elective, and emergency surgery was included; minor or superficial surgery was excluded. Data on patient characteristics, frailty, and multimorbidity were collected. Outcomes were medical complications including delirium, collected prospectively, postoperative morbidity and death, and length of stay. Descriptive statistics were used to analyse demographic and outcome data for these subgroups defined a priori.
resultsOf 7821 participants recruited, 7134 were available for analysis. Frailty was most prevalent amongst those undergoing hip fracture surgery (58.2%; 280/481); aged ≥85 yr (49.3%; 365/740); or undergoing emergency (31.4%; 668/2126) or orthopaedic procedures (30.6%; 630/2056). Participants undergoing emergency procedures had a median postoperative stay of 5 (interquartile range 1-13) days versus 1 (interquartile range 0-3) days compared with participants undergoing elective procedures, with delirium occurring in 16.3% (348/2138) versus 2.7% (134/4922), respectively. Postoperative morbidity and 30-day mortality were highest in those undergoing hip fracture surgery (morbidity 85.3% [413/484], mortality 5.0% [24/484]); aged ≥85 yr (morbidity 49.1% [367/747], mortality 3.9% [29/741]) and undergoing emergency procedures (morbidity 49.5% [1058/2138], and mortality 3.0% [64/2124]).
conclusionsThis snapshot of surgical patients in the UK highlights the high prevalence of frailty, postoperative morbidity, and mortality in key surgical subgroups, reinforcing the urgent need for comprehensive age-appropriate perioperative services tailored to these populations.
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