Table 4.

Global longitudinal strain decreases from baseline value at each visit in the AC+ group and AC− group.

	AC+	AC−	P
N	14	71
Decrease from baseline to visit 1	2.00 ± 3.3	0.98 ± 2.8	0.31
Decrease from baseline to visit 2	2.59 ± 2.8	1.46 ± 3.6	0.35
Decrease from baseline to visit 3	3.6 ± 3.2	1.41 ± 3.6	0.04
Decrease from baseline to visit 4	3.10 ± 2.5	0.76 ± 3.3	0.04

Values expressed as mean ± standard deviation; AC+ — group of patients who develop anthracycline cardiotoxicity; AC− — group of patients who do not develop cardiotoxicity due to anthracyclines. Values of P calculated by the Student t-test for the differences in decrease in global longitudinal strain between groups of patients who develop cardiac toxicity by anthracyclines (AC+) and those who do not develop cardiotoxicity by anthracyclines (AC−)