Impact of the COVID-19 Pandemic Period on Patients with Head and Neck Carcinoma: A Systematic Review.

Within the limitation of this review, the results showed efforts made to prevent the pandemic from affecting the healthcare provided. There were no significant differences in days inside the intensive care unit, postoperative complications, and, in most cases, length of stay in the hospital. There were no differences in the number of patients admitted with a history of recurrence or neoadjuvant treatment. However, some variables raise concerns, such as the increase in patients with more advanced stage and TNM classification and a decrease in certain oncological procedures.