PACU · Day 16 of 20
Handover is a measurable process in which omissions can be counted against a defined list, and a written checklist reliably improves the transfer of information, though even with a checklist under half the items were handed over and no study has shown a change in mortality or length of stay.
The PACU handover is the moment the anesthetic ends and, for a few minutes, nobody clearly owns the patient. Residents treat it as a report. The sources on this day treat it as a process that can be measured, and what they measure is unflattering: before a checklist, a median 32.4% of defined items were handed over in a post-anesthesia handover; with a written checklist, 48.7% salzwedel-2013. Even with the tool, under half the items arrived.
The consequence of getting this wrong is not that a handover is untidy. It is that the person who now holds responsibility for the patient does not hold the information that came with it.
A handover fails by omission, and omission is invisible to the person omitting. The giver knows what they know and does not notice what they have not said; the receiver cannot ask about what they have not heard. A written checklist works by making the list of items external to both parties, so that an omission becomes a visible blank rather than an unnoticed absence. That is also why verbal instruction to be thorough does not work: it leaves the list inside the giver’s head, where the omission started salzwedel-2013. The transfer of responsibility rides on the same mechanism. If the moment at which the receiver accepts the patient is not explicit, it is not clear to either party who is accountable in the gap, and the society consensus on the conduct of handovers exists to make that moment explicit agarwala-2019.
Salzwedel 2013 video-recorded 120 post-anesthesia handovers in the PACU: 40 before implementation and 80 after, with the after-handovers randomized to checklist or no checklist; the randomization unit was the handover, not the patient or the clinician salzwedel-2013. Items handed over rose from a median of 32.4% to 48.7%, duration rose from a median of 86 s to 121 s, and verbal instruction without a written checklist produced no increase in either salzwedel-2013.
Salzwedel 2016 ran the companion trial in the intensive care unit: 121 handovers, prospectively randomized, with items split into must-hand-over and should-hand-over categories; the must-hand-over items were transferred in 87.1% with the checklist versus 75.0% without, P less than 0.01 salzwedel-2016.
HATRICC, a prospective interventional cohort in two surgical ICUs at two affiliated hospitals between 2014 and 2016, measured information omissions out of 13 possible topics by trained observers; handoff duration increased from 4.1 (SD 3.3) to 8.0 (SD 3.9) min, P less than 0.001, and ICU mortality and length of stay did not change lanefall-2020. It is the strongest operating-room-to-ICU handover study and it is a before-and-after cohort, not a trial, and it is negative for clinical outcomes.
The society-level consensus recommendations describe what a perioperative handover should contain and how it should be taught; they are the source for the structure of the handover, not for its effect agarwala-2019. The obligation itself is in the ASA Standards for Postanesthesia Care, Standard III: upon arrival in the PACU the patient shall be re-evaluated and a verbal report provided to the responsible nurse by the member of the anesthesia care team who accompanies the patient, with information concerning the preoperative condition and the surgical and anesthetic course transmitted to the receiving nurse asa-pacu-standards-2024. HATRICC-US, a multicenter stepped-wedge trial of standardized handoffs registered in October 2020, has no published primary results: its registry record on 6 September 2026 showed recruitment still enrolling by invitation, no results posted, and an estimated completion of 31 July 2026, and a search found only the protocol and a 2023 implementation-fidelity paper lanefall-2021-protocol. When it reports, it will be the strongest evidence this day could have.
Both randomized trials and the cohort measure information transfer only. None measures a clinical outcome that improved salzwedel-2013 salzwedel-2016 lanefall-2020. The day’s claim therefore stops where the evidence stops: handover is measurable, a written checklist improves it, and nobody has yet shown that the improvement changes mortality or length of stay. A resident who says a checklist saves lives is saying more than the sources do.
The two Salzwedel trials are the trial-grade evidence for the day, and neither has yet been verified beyond a citation string in the ledger; their figures here are from the director’s extraction of the held papers salzwedel-2013 salzwedel-2016.
The number the day leads with is the half that still went missing. Even with the checklist, under half the items were handed over, which is a more honest framing of measurable than the improvement itself salzwedel-2013.
The other half of the original Day 16, that PACU capacity is an operating room problem, has no source in this ledger and has been dropped from the day.
The multicenter successor trial still has no results. Its registry record was re-checked on 2026-09-06: it is enrolling by invitation, holds no posted results, and both of its estimated completion dates, primary and overall, are now past, with the record last verified in August 2025. The only output so far is a pre-implementation methods paper. Nothing on this page rests on it, and it should not be quoted as a source until it reports.
Use a written checklist, not a memory of one, because verbal instruction to be thorough changed nothing in the trial that tested it salzwedel-2013. Expect the handover to take longer; the trials measured that cost and it is small salzwedel-2013 lanefall-2020.
Make the transfer of responsibility explicit. Say, and hear said, that the PACU now holds the patient, so that the moment the anesthesia team’s responsibility ends has a named owner agarwala-2019. When that moment arrives is not a matter of local preference: Standard III requires that a member of the anesthesia care team shall remain with the patient until the receiving nurse accepts responsibility for the nursing care of the patient asa-pacu-standards-2024. Local practice differs. the handover checklist used and who leads the handover differ between institutions; the requirement to stay until the nurse accepts responsibility does not.
Know that half the items still go missing with the best tool tested, and ask for what you have not been told rather than assuming it was not important salzwedel-2013.
Every number above carries its ledger key. Each key below resolves to the source record.
Salzwedel C, Bartz HJ, Kuhnelt I, Appel D, Haupt O, Maisch S, Schmidt GN. The effect of a checklist on the quality of post-anaesthesia patient handover: a randomized controlled trial. Int J Qual Health Care. 2013;25:176-181.
One of the few genuine randomised trials of a handover checklist. Needed if the day claims handover is a MEASURABLE risk point rather than merely a plausible one.
Salzwedel C, Mai V, Punke MA, et al. The effect of a checklist on the quality of patient handover from the operating room to the intensive care unit: a randomized controlled trial. J Crit Care. 2016;32:170-174.
The OR-to-ICU randomised checklist trial, distinct from the 2013 post-anaesthesia handover trial by the same group. Together these two are the trial-grade evidence the day needs.
Lane-Fall MB, Pascual JL, Peifer HG, Di Taranti LJ, Collard ML, Jablonski J, Gutsche JT, Halpern SD, Barg FK, Fleisher LA; HATRICC study team. A partially structured postoperative handoff protocol improves communication in 2 mixed surgical intensive care units: findings from the Handoffs and Transitions in Critical Care (HATRICC) prospective cohort study. Ann Surg. 2020 Mar;271(3):484-493.
Prospective interventional cohort (NCT02267174) in 2 surgical ICUs at 2 affiliated hospitals, 2014-2016; primary outcome was the number of information omissions out of 13 possible topics, recorded by trained observers; handoff duration increased from 4.1 (SD 3.3) to 8.0 (SD 3.9) minutes, P<0.001; ICU mortality and length of stay did not change. THIS IS THE STRONGEST OR-TO-ICU HANDOVER STUDY AND IT IS A BEFORE-AND-AFTER COHORT, NOT A TRIAL, AND IT IS NEGATIVE FOR CLINICAL OUTCOMES.
Agarwala AV, Lane-Fall MB, Greilich PE, et al. Consensus recommendations for the conduct, training, implementation, and research of perioperative handoffs. Anesth Analg. 2019;128:e71-e78.
The society-level statement on what a perioperative handover should contain and how it should be taught. Use for the structure of the handover, not for its effect.
Lane-Fall MB, et al. Handoffs and transitions in critical care - understanding scalability: study protocol for a multicenter stepped wedge type 2 hybrid effectiveness-implementation trial (HATRICC-US). Implement Sci. 2021;16:63.
PROTOCOL ONLY, registered as NCT04571749 on 1 October 2020, for a multicentre stepped-wedge trial of standardised OR-to-ICU handoffs across US academic ICUs. Design row, not a results row. Results may have published between this ledger's search date and use; see gaps.md.
American Society of Anesthesiologists. Standards for Postanesthesia Care. Approved by the House of Delegates October 27, 2004; last amended October 23, 2024. https://www.asahq.org/standards-and-practice-parameters/standards-for-postanesthesia-care
Standard V (verbatim): 'A PHYSICIAN IS RESPONSIBLE FOR THE DISCHARGE OF THE PATIENT FROM THE POSTANESTHESIA CARE UNIT. 1. When discharge criteria are used, they must be approved by the Department of Anesthesiology and the medical staff. They may vary depending upon whether the patient is discharged to a hospital room, to the ICU, to a short stay unit or home. 2. In the absence of the physician responsible for the discharge, the PACU nurse shall determine that the patient meets the discharge criteria. The name of the physician accepting responsibility for discharge shall be noted on the record.' Standard III: 'UPON ARRIVAL IN THE PACU, THE PATIENT SHALL BE RE-EVALUATED AND A VERBAL REPORT PROVIDED TO THE RESPONSIBLE NURSE BY THE MEMBER OF THE ANESTHESIA CARE TEAM WHO ACCOMPANIES THE PATIENT.' Also serves Day 16 (handover requirement).
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In Salzwedel 2013, post-anesthesia handovers were video-recorded before and after a checklist was introduced. What happened to the proportion of items handed over?
The checklist raised information transfer from about a third to under a half; the honest headline is the half that still went missing.
HATRICC (Lane-Fall 2020) standardized operating room to intensive care unit handoffs in two surgical ICUs. What did it find for clinical outcomes?
The strongest handoff cohort improved information transfer and changed neither mortality nor length of stay.
In Salzwedel 2013, what was the unit of randomization, and why does it matter?
The trial randomized handovers, not patients or clinicians, so it tests the process and not the person.