ASF Standards · Ambulatory Clinic · Standard 19

Standard 19 — Plastic & Cosmetic Surgery

3 criteria · 3 non-negotiable · 0 core · Version 3.0

Criteria in this standard

19.1 — VTE Risk Is Assessed Using a Validated Score, Completed by the Physician
19.2 — Office-Based Anesthesia Follows Defined Safety Standards
19.3 — Patient Selection Excludes Those Outside Safe Office-Based Surgery Criteria

19.1

VTE Risk Is Assessed Using a Validated Score, Completed by the Physician

Non-Negotiable

Every patient undergoing a procedure under general anesthesia lasting over 60 minutes has a validated venous thromboembolism risk score completed by the physician, not the patient, with prophylaxis decided according to the resulting risk category — not assumed low-risk because the patient appears otherwise healthy.

In plain terms: For any office surgery under general anaesthesia lasting over an hour, the physician — not the patient — completes a validated blood-clot risk score and decides on prophylaxis before the operation.

Facility category	Crisis	Transition	Small	Standard
Applicability	N/A	Full	Full	Full

Why this matters

Cosmetic surgery patients are often healthy — which is exactly why VTE is overlooked. A four-hour abdominoplasty under general anaesthesia, in a patient on oestrogen with a BMI of 32, carries a substantial clot risk. Pulmonary embolism is the leading cause of death after office-based cosmetic surgery. The Caprini score, completed by the surgeon from the patient's history and the planned procedure, stratifies risk and mandates prophylaxis — mechanical for most, chemical for higher scores. A questionnaire the patient fills in at reception is not a risk assessment; the surgeon must own it.

What good looks like

The VTE risk score is completed by the physician for every applicable procedure.
The prophylaxis decision genuinely reflects the documented risk category.
The score is reassessed if the actual procedure differs from what was planned.

Common failure modes

The risk score is completed by the patient, or not completed at all.
Prophylaxis decisions don't consistently reflect the documented risk score.
The score isn't reassessed even when the procedure scope changes significantly.

Worked example

In practice

An office-based plastic surgery practice performing abdominoplasty, liposuction, and breast surgery.

BeforeA VTE questionnaire was in the intake pack; patients ticked boxes. The surgeon did not review or score it. Prophylaxis was 'compression stockings if we remember.' A 38-year-old on oral contraceptives died of pulmonary embolism five days after abdominoplasty.

ActionThe Caprini score was adopted, completed by the surgeon at the pre-operative consultation from a structured history, and recorded with the planned procedure. Prophylaxis is prescribed by score: intermittent pneumatic compression for all; LMWH for Caprini ≥7 (or per national guidance); oestrogen-containing medication stopped four weeks pre-op for scores above threshold. The score and plan are on the theatre checklist; surgery does not proceed without them.

AfterThe Monitor reviewed 20 operative records: all had surgeon-completed Caprini scores with prophylaxis matched to score; three showed oestrogen cessation. Verified.

If you are starting from zero — do this first

Pull ten operative records: is there a VTE score, and who completed it?
Adopt the Caprini score and require surgeon completion.
Write prophylaxis rules by score.
Add score and plan to the theatre checklist.

The most common mistake: Assuming young, healthy cosmetic patients are low risk — the combination of long surgery, oestrogen, and immobility is high risk.

Self-assessment questions

1. Is a validated VTE risk score completed by the physician, not the patient, for every applicable procedure? — Physician-completed specifically, not relying on patient self-report.
Evidence: VTE risk assessment record

2. Does the resulting risk category actually determine the prophylaxis decision, not just get recorded and set aside? — Genuine, documented decision-making tied to the score, not a score calculated but not acted on.
Evidence: Prophylaxis decision record linked to risk score

3. Is the risk score specifically re-assessed if the planned procedure changes in scope or duration? — Reassessment reflecting the actual procedure performed, not the originally planned one.
Evidence: N/A — tested directly

Common reasons for a PARTIAL answer

The score is physician-completed for major procedures but skipped for shorter or perceived lower-risk cases. — The 60-minute general anesthesia threshold, not a subjective sense of procedure risk, is what determines whether scoring applies.
The score is completed but prophylaxis decisions default to a standard approach regardless of the specific category. — The whole value of risk stratification is lost if prophylaxis doesn't actually vary by category.
Reassessment happens when the surgeon proactively remembers, without a defined trigger.

Implementation plan

When	What
Week 1	Review current VTE risk assessment practice for physician completion versus patient self-report.
Week 2	Establish or reinforce genuine linkage between risk category and prophylaxis decision.
Week 3	Define a specific trigger for reassessment when procedure scope changes.
Ongoing	Audit risk score completion and prophylaxis decision consistency periodically.

How the Monitor verifies this

Method	What	Detail
DOCUMENT	Risk score completion review	Reviews records confirming the VTE risk score was completed by the physician, not the patient.
DOCUMENT	Prophylaxis decision review	Reviews whether the prophylaxis decision is genuinely tied to the documented risk score.
ASK	Reassessment practice interview	Asks the physician whether and how the score is reassessed if procedure scope changes.

Supervisor tips

Ask specifically who completes the risk score — check for patient self-report specifically. — This is a documented, specific failure mode worth checking directly, not assuming.
Ask for a real example of a high-risk score and the resulting prophylaxis decision. — A real example reveals whether the score genuinely drives decisions, not just gets recorded.

Evidence base

[86] Murphy RX Jr, Alderman A, Gutowski K, Kerrigan C, Rohrich RJ, Byrd HS, et al. Evidence-based practices for thromboembolism prophylaxis: summary of the American Society of Plastic Surgeons Venous Thromboembolism Task Force Report. Plast Reconstr Surg. 2012;130(1):168e-175e — establishes physician-completed Caprini risk scoring as the standard for VTE prophylaxis decisions in plastic surgery, given documented unreliability of patient self-assessment.

Train your team: AMB-19 · Plastic & Cosmetic Surgery on GMJ Academy →

This course teaches practical implementation of this standard. Free to enroll. ASF certificate on completion.

19.2

Office-Based Anesthesia Follows Defined Safety Standards

Non-Negotiable

Anesthesia administered in an office-based surgical setting follows the same defined safety standards as a hospital operating room — qualified personnel, appropriate monitoring equipment, and a defined emergency transfer protocol — not a reduced standard justified by the office setting.

In plain terms: Anaesthesia in the office is delivered to the same standard as in a hospital — a qualified anaesthetist, full monitoring including capnography, and a plan for when things go wrong.

Facility category	Crisis	Transition	Small	Standard
Applicability	N/A	Full	Full	Full

Why this matters

Deaths from office-based anaesthesia happen because the office is not a hospital: no anaesthetist, monitoring limited to pulse oximetry, no capnography to detect airway obstruction under sedation, no difficult airway kit, no plan for transfer. The patient under deep sedation for liposuction is as physiologically vulnerable as one in a hospital theatre — more so, if the monitoring is less. The standard is simple: the same person, equipment, and protocol you would find in a hospital operating room. If the office cannot provide that, it should not be doing the procedure.

What good looks like

Anesthesia personnel meet hospital-equivalent qualification standards.
Monitoring equipment is genuinely equivalent to a hospital operating room.
A specific emergency transfer protocol exists with a named receiving facility.

Common failure modes

Personnel qualifications are reduced relative to hospital standards, justified by the office setting.
Monitoring equipment is a scaled-down version of what a hospital would use.
No specific transfer protocol exists beyond a general assumption transfer would happen if needed.

Worked example

In practice

An office-based surgical suite where the surgeon administered sedation with a nurse monitoring.

BeforeThe surgeon prescribed and the nurse gave propofol and ketamine. Monitoring was pulse oximetry and non-invasive blood pressure. No capnography. No anaesthetist. No difficult airway equipment. No written transfer plan. A patient became apnoeic during liposuction; the oximeter alarm was the first sign; she was bagged and recovered, but the event was not reported.

ActionAn anaesthesia standard was adopted, matching the national hospital standard: an anaesthetist (or, where legally permitted, a certified nurse anaesthetist) present and dedicated to the patient throughout; monitoring including continuous capnography for any sedation beyond minimal; pre-anaesthetic assessment documented; difficult airway kit and reversal agents present; a written transfer agreement with the nearest hospital; a monitored recovery area with discharge criteria. Sedation by the operating surgeon was prohibited.

AfterThe Monitor reviewed the standard, observed a procedure with an anaesthetist and capnography, inspected the airway kit, and reviewed the hospital transfer agreement. Verified.

If you are starting from zero — do this first

Who gives the anaesthesia in your office? Is that person also operating?
Is capnography used for every sedation? If not, that is the gap.
Adopt your national hospital anaesthesia standard verbatim.
Sign a transfer agreement with the nearest hospital.

The most common mistake: The operating surgeon directing sedation — they cannot watch the airway and the operation at once.

Self-assessment questions

1. Is anesthesia administered by personnel with qualifications equivalent to a hospital operating room standard? — The same qualification standard, not a reduced one for the office setting.
Evidence: Anesthesia personnel qualification record

2. Is monitoring equipment equivalent to what a hospital operating room would use for the same procedure? — Genuinely equivalent equipment, not a scaled-down version.
Evidence: Monitoring equipment inventory

3. Is there a specific, defined emergency transfer protocol to a hospital, with a named receiving facility? — A specific, real protocol and named facility, not a general assumption that transfer would happen if needed.
Evidence: Emergency transfer protocol document

Common reasons for a PARTIAL answer

Personnel qualifications are appropriate but monitoring equipment is older or less comprehensive than current hospital standard. — Equipment standards, not just personnel qualifications, need to genuinely match hospital equivalence.
A transfer protocol exists but hasn't been tested or reviewed recently. — An untested protocol may not translate smoothly into real action during an actual emergency.
The receiving facility was named some time ago but the relationship hasn't been reconfirmed as still active.

Implementation plan

When	What
Week 1	Review current anesthesia personnel qualifications and monitoring equipment against hospital-equivalent standards.
Week 2	Address any gap in personnel qualification or equipment equivalence.
Week 3	Establish or reconfirm a specific emergency transfer protocol with a named facility.
Ongoing	Periodically reconfirm the transfer relationship remains active.

How the Monitor verifies this

Method	What	Detail
DOCUMENT	Personnel qualification review	Reviews anesthesia personnel qualifications against hospital-equivalent standards.
OBSERVE	Monitoring equipment check	Physically confirms monitoring equipment is genuinely equivalent to hospital operating room standards.
DOCUMENT	Emergency transfer protocol review	Reviews the specific emergency transfer protocol and named receiving facility.

Supervisor tips

Ask to see actual monitoring equipment and compare against hospital operating room standard. — Direct physical comparison reveals whether equivalence is genuine, not assumed.
Ask for a real, recent example of the transfer protocol being used or tested. — A real example, or its honest absence, reveals whether the protocol genuinely functions.

Evidence base

[87] Office-based anesthesia safety standards equivalent to hospital-based operating room requirements, including qualified personnel and defined emergency transfer protocols, are established practice for reducing the documented elevated risk associated with office-based surgical anesthesia.

Train your team: AMB-19 · Plastic & Cosmetic Surgery on GMJ Academy →

This course teaches practical implementation of this standard. Free to enroll. ASF certificate on completion.

19.3

Patient Selection Excludes Those Outside Safe Office-Based Surgery Criteria

Non-Negotiable

Patient selection for office-based procedures follows specific, defined exclusion criteria — BMI thresholds, relevant comorbidities, combined procedure duration limits — verified before scheduling, not assessed only on the day of surgery when declining is far harder.

In plain terms: Written rules say which patients cannot safely have surgery in the office — BMI above a limit, certain conditions, combined procedures over a time limit — and those rules are checked before booking.

Facility category	Crisis	Transition	Small	Standard
Applicability	N/A	Full	Full	Full

Why this matters

An office surgical suite has no ICU, no blood bank, no on-call physician overnight. A patient with a BMI of 45, sleep apnoea, and poorly controlled diabetes, scheduled for six hours of combined procedures, is a patient who belongs in a hospital. Selection criteria — written, specific, checked at booking — keep the office for the patients it can safely serve. The criteria typically cover: BMI threshold, ASA class, specific conditions (sleep apnoea, cardiac disease, bleeding disorders), maximum total procedure duration, and maximum liposuction volume. A patient who does not meet them is referred to a hospital setting. No exceptions for a persuasive patient or a profitable case.

What good looks like

Selection criteria are applied before scheduling, catching issues early.
Criteria specifically address BMI, comorbidities, and duration limits.
A real, documented example exists of a patient being declined or redirected.

Common failure modes

Suitability is assessed only on the day of surgery, when declining is far harder.
Criteria are general clinical judgement without specific, named factors.
No example exists of the criteria ever actually resulting in a decline or redirection.

Worked example

In practice

An office-based plastic surgery practice with no written selection criteria.

BeforeThe surgeon decided case by case. A patient with BMI 44 and untreated sleep apnoea had a combined abdominoplasty and breast reduction lasting seven hours in the office; she was transferred to hospital with respiratory failure in recovery. There were no written criteria to have prevented the booking.

ActionSelection criteria were written per national society guidance: BMI ≤35, ASA I–II only, no untreated sleep apnoea, no significant cardiac or pulmonary disease, combined procedure duration ≤4 hours, liposuction aspirate ≤4 litres. The criteria are checked and signed by the surgeon at the pre-operative consultation; booking staff cannot schedule a case without the signed sheet. Cases outside criteria are referred to the affiliated hospital.

AfterThe Monitor reviewed the criteria, 20 booking records with signed selection sheets, and two cases referred to hospital because they exceeded criteria. Verified.

If you are starting from zero — do this first

Write your selection criteria from national society guidance — BMI, ASA, conditions, duration, volume.
Add a selection checklist to the pre-operative consultation.
Make booking conditional on the signed checklist.
Have a hospital pathway for patients outside criteria.

The most common mistake: Deciding case by case — the decision is always harder when the patient is in front of you and wants the surgery.

Self-assessment questions

1. Are specific exclusion criteria for office-based surgery defined and applied before scheduling, not only assessed the day of surgery? — Pre-scheduling assessment, catching an issue before the patient has already prepared and arrived.
Evidence: Pre-scheduling selection criteria document

2. Do the criteria specifically address BMI thresholds, relevant comorbidities, and combined procedure duration limits? — Specific, named factors, not a general clinical judgement standard.
Evidence: N/A — tested directly

3. Is there a real, documented example of a patient being declined or redirected to a hospital setting based on these criteria? — A real example demonstrates the criteria have genuine teeth, not just theoretical existence.
Evidence: Declined-case documentation

Common reasons for a PARTIAL answer

Criteria exist and are generally applied but aren't consistently checked before scheduling confirmation. — The value of early assessment is lost if it happens after scheduling is already confirmed.
BMI and comorbidities are considered but combined procedure duration limits aren't specifically tracked. — Combining multiple procedures can meaningfully extend total anesthesia time beyond any single procedure's individual risk profile.
The practice believes it would decline an unsuitable patient but has no real example to demonstrate this.

Implementation plan

When	What
Week 1	Review current patient selection timing against a genuine pre-scheduling standard.
Week 2	Establish specific, named exclusion criteria covering BMI, comorbidities, and duration limits.
Week 3	Build the criteria check into the scheduling process itself, before confirmation.
Ongoing	Document any case where criteria result in a decline or redirection.

How the Monitor verifies this

Method	What	Detail
DOCUMENT	Pre-scheduling criteria review	Reviews whether selection criteria are genuinely applied before scheduling, not only on the day of surgery.
DOCUMENT	Criteria specificity review	Reviews criteria for specific coverage of BMI, comorbidities, and duration limits.
DOCUMENT	Declined-case review	Reviews for a real, documented example of a patient declined or redirected based on the criteria.

Supervisor tips

Ask for the specific BMI threshold and duration limit used, not a general description of careful patient selection. — Specific, named figures reveal a genuine standard rather than case-by-case judgement alone.
Ask for a real example of a declined or redirected patient. — A real example, or its honest absence, is the clearest evidence of whether criteria have genuine teeth.

Evidence base

[88] Defined, pre-scheduling patient selection criteria for office-based surgical safety, distinct from same-day clinical assessment, are established practice for reducing the documented risk associated with proceeding despite contraindicating patient factors.

Train your team: AMB-19 · Plastic & Cosmetic Surgery on GMJ Academy →

This course teaches practical implementation of this standard. Free to enroll. ASF certificate on completion.

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