SARS-COV-2	Severe acute respiratory syndrome coronavirus 2
COVID-19	Coronavirus Disease 2019
ICU	Intensive Care Unit
ECMO	extracorporeal membrane oxygenation
NSAIDs	Nonsteroidal anti-inflammatory drugs
CPOT	Critical Care Pain Observation Tool
BPS	Behavioral Pain Scale
WHO	World Health Organization
RNA	ribonucleic acid
SARS	Severe Acute Respiratory Syndrome
MERS	Middle East Respiratory Syndrome
et al.	et alia
PNS	peripheral nervous system
CNS	Central nervous system
IL	Interleukin
ACE2	Angiotensin-converting enzyme 2
ANG	Angiotensin
TNF	tumor necrosis factor
PGE2	Prostaglandin E2
CSF	Cerebrospinal Fluid
TG	Trigeminal ganglia
CGRP	calcitonin gene-related peptide
VAS	visual analogue scale
NRS	numerical assessment scale
NMB	neuromuscular blocking medications
CoVs	Coronaviruses
COPD	chronic obstructive pulmonary disease
NK	Natural Killer cells
RR	Relative risk
COX	cyclooxygenase
LOX	lipoxygenase
EMA	European Medicines Agency
OCT	Over-the-counter drug
ASA	acetylsalicylic acid
NNT	numbers needed to treat