Timing of Surgery After COVID-19 Diagnosis

Timing Guidelines Based on Disease Severity

The American College of Anaesthesia recommends that patients with mild to moderate COVID-19 symptoms should self-isolate for at least 10 days from symptom onset before undergoing elective surgery 1, 2
Patients with mild to moderate COVID-19 are most contagious in the 2 days before and 5 days after symptom onset, with infectivity decreasing significantly after 10 days 1
Live virus is rarely cultured beyond 10 days in patients with mild to moderate disease, which forms the basis for the 10-day isolation recommendation 1
For patients with severe COVID-19 requiring hospitalization or oxygen therapy, surgery should be delayed for 15-20 days from symptom onset 1, 2
The risk of having replication-competent virus is approximately 5% at 15 days after symptom onset and extremely rare at 20 days in severely ill patients 1

If emergency surgery is required during the infectious period, the patient should be managed with full transmission-based precautions, including treating the patient in a dedicated COVID-19 operating room 4, 5
Appropriate PPE (N95 masks, goggles, double gloves, face shields, and protective gowns) should be used when performing emergency surgery on a COVID-19 patient 5, 6
The patient should be isolated postoperatively in a dedicated COVID-19 surgical unit or ICU 4, 5

A positive RT-PCR test has high specificity but moderate sensitivity 4, 7
A single negative test should not be used to rule out COVID-19 in patients with strongly suggestive symptoms 4, 7
For patients with uncertain COVID-19 status requiring immediate surgery, manage as a confirmed COVID-19 case until diagnosis is confirmed 4, 7

PCR positivity does not necessarily correlate with secretion of live virus, especially after the infectious period has passed 1, 8
The decision to proceed with surgery should be based on time since symptom onset, resolution of symptoms, and patient's overall clinical status and comorbidities 1, 2

Do not rely solely on a negative PCR test to determine infectivity status, especially early in the disease course 4, 7
Do not schedule surgery during the period when the patient may be infectious (typically within 10 days of symptom onset for mild/moderate cases) 1, 2
Avoid assuming that persistent PCR positivity beyond 10 days indicates ongoing infectivity in mild/moderate cases 1, 8
Do not underestimate the importance of isolating COVID-19 patients from non-COVID patients in surgical settings 4, 5