Publications by authors named "Irma Zapata"

Background: The sanitary emergency created by the COVID-19 pandemic forced us to take exceptional measures that affect decision-making and administration of treatments with radiotherapy. The aim of the study was to analyze the impact of the COVID-19 pandemic on patients and professionals in a radiation oncology department.

Materials And Methods: We implement a plan with the objectives of maintaining radiotherapy treatment in those patients who need it and, at the same time, reducing the risk of spreading the virus to staff and patients.

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Background: Little progress has been achieved in non-small cell lung cancer (NSCLC) patients with unresectable stage III disease and new drug schemes are warranted.

Material And Methods: In this open-label, single-arm, phase II trial 65 treatment-naïve stage III NSCLC deemed surgically unresectable by a multidisciplinary team were treated with 2 cycles of induction cisplatin at 80 mg/m every 21 days plus metronomic oral vinorelbine at 50 mg/day every Monday, Wednesday and Friday. During the concomitant treatment with thoracic radiotherapy cisplatin was administered in the same manner but oral vinorelbine was reduced to 30 mg/day.

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Chordomas are tumors with a bad prognosis, because of their location, local aggressiveness and high rate of local relapse. Despite of be benign tumors, they have certain capacity of metastasize and a clinical evolution that results interesting. When we analyzed our series with 35 chordomas studied and treated between 1975 and 2002, we found three patients that experienced a systemic dissemination.

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Purpose: To examine the potential radiosensitising properties of trabectedin (ET-743, Yondelis).

Methods And Materials: In vitro chemosensitivity was assessed in four tumour cell lines (DU145, HeLa, HT29, HOP62) by the crystal violet method. IC10s and IC50s were established for 1-h, 24-h and 7-day (continuous) exposure times.

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Purpose: To compare, in a randomized trial, 5-fluorouracil (FU) plus leucovorin (LV) (FU+LV) vs. oral uracil and tegafur (UFT) plus LV (UFT+LV) given concomitantly with preoperative irradiation in patients with cT3-4 or N+ rectal cancer.

Methods And Materials: A total of 155 patients were entered onto the trial.

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