Opinion Review
Copyright ©The Author(s) 2020.
World J Gastroenterol. Oct 14, 2020; 26(38): 5749-5758
Published online Oct 14, 2020. doi: 10.3748/wjg.v26.i38.5749
Table 1 Endoscopy indigestive endoscopy center of West China Hospital during the COVID-19 pandemic

March 1, 2019 –April 10, 2019
March 1, 2020-April 10, 2020
Routine gastroscopy1414616
Routine colonoscopy903438
Painless gastroscopy47093325
Painless colonoscopy33122462
Enteroscopy2430
Capsule gastroscopy5740
EUS309224
Diagnostic endoscopy107287135
Removal of foreign body in UGI tract10970
Hemostasis of varicose veins11177
Hemostasis of non-varicose veins2519
Stent placement in UGI tract14
Stent placement in LGI tract26
Esophageal EMR10
Gastric EMR 16130
Colorectal EMR569177
Esophageal ESD2423
Gastric ESD4123
Colorectal ESD149
POEM50
ERCP168124
EUS-FNA2125
EUS + stent drainage01
STER 87
ESTD3548
Therapeutic endoscopy1295643
Table 2 Prevention and control measures for each location
LocationOccupational protectionReserved supplyEnvironmental managementScreening and treatment

No special pollution
Special pollution
Air disinfection
Screening method
No abnormalities
Suspected patients
Reservation officeLong sleeve overalls; medical surgical mask; disposable medical cap; plastic gloves/nitrile glovesInfrared  temperature measuring gun Thermometer; 75% alcohol. Free hand-washing disinfectionSurface disinfection: 75% alcohol Floor disinfection: 500 mg/L chlorine-containing disinfectant Frequency: 1-2 times/dSecretion pollution: 2000 mg/L chlorine-containing disinfectant Frequency: immediateContinuous fresh air exchangeAsk about symptoms and signs and epidemiological history Temperature measurementMake an appointmentStop appointment Send to fever clinic of emergency department
Reception and guidance areaLong sleeve overalls; medical surgical mask; disposable medical cap; plastic gloves /nitrile glovesInfrared  temperature measuring gun Thermometer; 75% alcohol Free hand-washing disinfectionSurface disinfection: 75% alcohol Floor disinfection: 500 mg/L chlorine-containing disinfectant Frequency: 1-2 times/dSecretion pollution: 2000 mg/L chlorine-containing disinfectant Frequency: immediateContinuous fresh air exchangeAsk about symptoms and signs and epidemiological history Temperature measurement Fill in the preliminary screening formLead to secondary waiting areaStop appointment Send to fever clinic of emergency department
Secondary waiting areaLong sleeve overalls; medical surgical mask; disposable medical cap; Plastic gloves/nitrile gloves; Patients and families wear masks all the timeInfrared  temperature measuring gun Thermometer; 75% alcohol Free hand-washing disinfectionSurface disinfection: 500 mg/L chlorine-containing disinfectant; Floor disinfection: 500 mg/L chlorine-containing disinfectant; Frequency: 1-2 times/d; Doorknob and chairs disinfection: 1000 ppm chlorine-containing disinfectant (2 or 3 times/d)Secretion pollution: 2000 mg/L chlorine-containing disinfectant; Frequency: ImmediateContinuous fresh air exchangeCheck the preliminary screening table, symptoms and signs, and epidemiological historyTake temperature if necessaryPrepare endoscopic diagnosis and treatmentStop diagnosis and treatment Send to fever clinic of emergency department
Examination roomLong sleeve overalls; disposable waterproof isolated clothing; Medical surgical face mask and glasses; Disposable medical cap; latex gloves; special shoes; The assistant is the same as the reservation officeFree hand-washing disinfection (per room)Surface disinfection: 75% alcohol Floor disinfection: 1000–2000 mg/L chlorine-containing disinfectant Frequency: 2 or 3 times/dSecretion/blood pollution: 2000 mg/L chlorine-containing disinfectant Frequency: ImmediateContinuous fresh air exchange Automatic air disinfector Time: 2 h Frequency: 2 times/dCheck the preliminary screening table, symptoms and signs, and epidemiological historyTake temperature if necessaryEndoscopic diagnosis and treatmentStop diagnosis and treatment; Send to fever clinic of emergency department
Resuscitation roomLong sleeve overalls; medical surgical mask; disposable medical cap; plastic gloves/nitrile gloves Free hand-washing disinfection (per bed)Surface disinfection: 75% alcohol Floor and sofa disinfection: 1000–2000 mg/L chlorine-containing disinfectant Frequency: 1 or 2 times/dSecretion/blood pollution: 2000 mg/L chlorine-containing disinfectant Frequency: immediateContinuous fresh air exchange Automatic air disinfector Time: 2 h Frequency: 2 times/dMake sure they wear the mask when the patient leaves the resuscitation room; Publicity and education for family members
Disinfection roomLong sleeve overalls; Disposable waterproof isolated clothing; medical surgical face mask and glasses; disposable medical cap; latex gloves; special shoesFree hand-washing disinfectionSurface disinfection: 500 mg/L chlorine-containing disinfectant Floor disinfection: 500 mg/L chlorine-containing disinfectant Frequency: 1 or 2 times/dSecretion/blood pollution: 2000 mg/L chlorine-containing disinfectant Frequency: ImmediateKeep the storage cabinet ventilated, clean and drySuspend use of glutaraldehyde, and use peracetic acid for disinfection/sterilization
Office areaPersonal clothes; Mask; All personnel are not allowed to come to the office with protective isolated clothingFree hand-washing disinfectionSurface disinfection: 1000 mg/L chlorine-containing disinfectant Floor disinfection: 1000 mg/L chlorine-containing disinfectantFrequency: 2 or 3 times/d Doorknob disinfection: 75% alcohol (2–4 times/d)Continuous fresh air exchangeWorkers shall pack and seal the soiled bags in time
Staff for confirmed or suspected patientsLong sleeve overalls; disposable waterproof isolated clothing; medical protective clothing; protective face mask; protective glasses; N95 mask; protective shoe cover; double latex glovesFree hand-washing disinfection; inside/outside the door of operation roomSurface disinfection: 2000 mg/L chlorine-containing disinfectant Floor disinfection: 2000 mg/L chlorine-containing disinfectant Frequency: Immediately after operationContinuous fresh air exchange automatic air disinfector Time: 2 h/time Frequency: immediately after each operationOperation room: Room 1; isolation corridor; staff: 2 doctors, 2 nurses and 2 anesthesiologists. All items prepared before operation, including environmental disinfection items. All remaining items shall be taken out after removing the outer package after the end of disinfection. All medical wastes shall be treated as hazardous wastes. After the final disinfection, the medical staff shall wait for 20 min for fresh air exchange, then remove the isolation protection facilities, turn on the sterilizer, after 30 min of disinfection, take off the mask and leave the inspection room. Disinfect the door handle again outside the door and have hand hygiene