Objectives:

To know the incidence of adverse events associated with chemotherapy (AE), characterize them and analyze their economic implications using two detection tools.

Materials and methods:

Longitudinal cut incidence study.

Results:

350 patients were studied. Mean age: 56.9, median: 43.4, range: 19-85. The number of patients with AD was: 323 in the five years. The cumulative incidence (AI) was: 0.923 that is 92.3% patients in 5 years and the incidence density (DI) was 0.186 in five years that is 18.6%. The number of ADES in the sample was 1,601 with manual review, a mean of 4.57 EA/patient in the total sample. The AE indicators were: 457.42 AE/100 discharges, and 118.57 AE/1,000 hospitalized patient days. 152.47 EA/1,000 doses of oncology administered were detected. With the GTT review, 1,578 AE were found, a mean of 4.50 AE/patient. The AE indicators were: 450.8 AE/100 discharges, and 126.64 AE/1,000 patient days and 141.45 AE/1,000 doses of oncological drugs administered. The costs invoiced with and without events are USD 5,343.75 vs. 15,287.5. The two detection tools have a similar detection capacity in terms of number of AE, but the complete medical history review without triggers takes six times the time that the trigger tool takes.

Conclusions:

The incidence of adverse cancer events is high, the GTT tool is useful compared to the complete review of medical records to find AE, the costs of hospitalization with events in relation to without events are significantly higher. The most frequent reactions are dermatological, and those that affect the blood system, among others.

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