Table 6.

Underlying causes of cancellation.

Apparent reasons	Underlying reasons	Examples
Over booking	Bed crisis	Irregular number of weekly admissions per session and per surgeon
	Bed crisis	Bypass of admission office through the emergency department
	Bed crisis	Forced admission through the Day Care Unit
	Bed crisis	Daily waiting list for replacement in case of cancellation
	Lack of communication	No coordination between the surgeons who share the same session
	No restrictive rules	No limitation for the booked cases
	No restrictive rules	Surgeon over estimation
	Limited operating time	Shortage of operating sessions per surgical team
	Ethical pressure on the surgeon	Discovery of a cancer: not emergent but cannot wait
	Social pressure on the surgeon	School holidays
No-show	Bed crisis	Booking is not at a convenient time for the patient
	Bed crisis	Omission due to long waiting time
	Bed crisis	Reorientation to another hospital if urgent surgery
	Bed crisis	No private room for the patients who want privacy
	Incomplete information	Language barrier without a check for understanding
Unfit for anesthesia	Bed crisis	Expiry of anesthesia sheet and consent due to the delayed admission
	Bed crisis	Change of health conditions due to the long waiting time
	Bed crisis	Incomplete preparation not to miss the admission date
	Lack of communication	Recent inevitable illness such as flu not communicated to the hospital
	No admission rules	Bypass of anesthesia consultation not to miss the bed availability
	Wrong decision	Involvement of junior doctors
	Incomplete information	Language barrier without check for understanding
Unfit for surgery	Bed crisis	Change of indication due to the delayed admission
	Bed crisis	Incomplete preparation not to delay the admission
	Wrong decision	Involvement of junior doctors
	Incomplete information	Language barrier without check for understanding