TABLE 1.

Summary of recommendations for management of patients with sleep disordered breathing according to epidemiological situation

	Visits	Sleep test	Evaluation for COVID-19
Stage 0: maximum transmission rate	Telemedicine Phone	No sleep studies, postpone initiation of treatment Home respiratory polygraphy in high-risk cases	Clinical
Stage 1: improvement of the pandemic situation	Telemedicine Phone	Home respiratory polygraphy (protection 1) CPAP in high-risk patients: automatic or telematic titration	Clinical
Stage 2: trend towards normalisation of the pandemic	Telemedicine Phone In few cases: face to face	Home respiratory polygraphy (protection 1) PSG (protection 2) CPAP: automatic or telematic titration (protection 1); demonstration in the laboratory (protection 2)	PCR if PSG Protection 3 if titration in the laboratory

COVID-19: coronavirus disease 2019; CPAP: continuous positive airway pressure; PSG: polysomnography. Protection 1: FFP2 mask, nitrile gloves, surgical gown (optional glasses or plastic shield); protection 2: PSG: the technician has to be comfortable while spending all the night with the patient; PCR is needed; FFP2 mask, surgical gown, hat, gloves and glasses (optional plastic face shield). Street clothes will not be used and the hospital uniform must be changed and cleaned daily; protection 3: FFP2/3 mask, nitrile gloves, surgical gown, hat, glasses/plastic face shields. Street clothes will never be used and the work uniform must be changed daily. It is recommended not to use open masks or circuits, but to use a closed circuit with an antiviral filter, turning on the equipment only when it is connected to the patient. Reproduced and modified from [5] with permission.