“…Several etiological factors can cause SHL, such as loud noise [17,18], viral infection [14,19], genetic mutations [20,21], accidental events [22,23], ototoxicity [24][25][26], autoimmune diseases [27] and unknown illness-induced sudden SHL [28,29]. Several diseases such as hypertension (HT) [30,31], diabetes mellitus (DM) [32,33], stroke [34], chronic kidney disease (CKD) [35,36], ischemic heart disease (IHD) [37,38], alcoholism [39,40], nicotine dependence [41,42], asthma [43][44][45], chronic obstructive pulmonary disease (COPD) [46], and rheumatoid arthritis (RA) [47] are associated with SHL. Notably, some of these diseases can cause defects in the vascular system and microcirculation in the cochlea, subsequently resulting in hypoxia [48][49][50].…”