American Society of Anesthesiologists

Fig. 1. The structural formula of HES = poly(O-2-hydroxyethyl)starch. R =−H, −CH2CH2OH. R1=−H, −CH2CH2OH, or glucose unit. 1−6 = carbon atoms in positions 1−6. Enzymatic cleavage site of serum α-amylase ( yellow arrow ) at carbon atoms 1 and 4.

Fig. 1. The structural formula of HES = poly(O-2-hydroxyethyl)starch. R =−H, −CH²CH²OH. R¹=−H, −CH²CH²OH, or glucose unit. 1−6 = carbon atoms in positions 1−6. Enzymatic cleavage site of serum α-amylase ( yellow arrow ) at carbon atoms 1 and 4.

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