Prevalence of Anticipatory Nausea and Vomiting in Cancer Patients Exposed to Highly Emetogenic Chemotherapy

Inclusion Criteria:

• Patients with histological confirmation of cancer;
• Patients who will start chemotherapy with a high-grade emetogenic scheme and who have received adequate antiemetic prophylaxis;
• No previous cancer treatment for the current diagnosis (excluding surgery);

Exclusion Criteria:

• Patients who have an inability to answer the questionnaire, due to lack of discernment to answer the questions reliably;
• Patients who report vomiting during the 24 hours prior to the first cycle of chemotherapy treatment;
• Patients who have a disease or condition that could cause emesis (ie, metastasis in the central nervous system, gastrointestinal obstruction or metabolic and electrolyte imbalances);
• Patients using opioids or illicit drugs;
• Alcoholism;