Opinion Review
Copyright ©The Author(s) 2021.
World J Clin Cases. Aug 16, 2021; 9(23): 6582-6590
Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6582
Table 1 Impacts produced on elective procedures in different scenarios[12]

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2
3
4
5
Effectiveness of conservativetreatmentNone/not available< 40% of that provided by surgery40%-60% of that provided by surgery60%-95% of that provided by surgeryFully equivalent to that provided by surgery
Impact of a 2-wk delay on disease prognosisVery severe worseningSignificant worseningModerate worseningSlight worseningNo worsening
Impact of a 6-wk delay on disease prognosisVery severe worseningSignificant worseningModerate worseningSlight worseningNo worsening
Surgical time (min)< 3030-6060-120120-180> 180
Average hospital stayMinor surgery/major ambulatory surgery< 24 h24-48 h3 d> 4 d
Likelihood of need for ICU (%)Unlikely< 55-1010-25> 25
Blood required (cc)< 100100-250250-500500-750> 750
Members of the surgical team1234> 4
Location of surgeryNone of the followingUpper and lower abdomen, by laparoscopyLower abdomen, open surgeryUpper abdomen, open surgeryHead and neck, thorax, gastro-oesophageal complex
Age< 2020-4040-5050-65> 65
Chronic lung pathology (COPD, asthma, cystic fibrosis)NoTreatment on demandUsual treatment
Obstructive sleep apnea syndromeNoNo treatmentContinuous positive airway pressure
Cardiovascular diseaseNo1 drug2 drugs3 drugs
BMI (kg/m2)< 2525-30> 30
Diabetes mellitustype 2NoNo medicationOral antidiabetic+ Insulin
ImmunosuppressionNoModerateSevere
Flu syndromeNoYes
Contact with COVID-19 in the last 15 dNoUnknownYes