“…In other studies, the primary reason of ICU admission was acute chest syndrome (ACS) with 55% in Bahrain, 69.9% in Oman, and 30.4% in the United Kingdom. 16 , 22 , 23 The reason was that some patients were shown to have more than one complaint and more than one organ involved, which may be related to the nature of SCD and the pathophysiological sickling process.…”