Publications by authors named "Oldenborg S"

Purpose: Combining reirradiation (reRT) with hyperthermia (HT) has shown to be of high therapeutic value for patients with loco-regionally recurrent breast cancer. The purpose of this study was to compare the long-term therapeutic effect and toxicity of reRT + HT following surgery of loco-regionally recurrent breast cancer using two different reRT regimens.

Methods: The reRT regimen of the 78 patients treated in Institute A consisted of 8 × 4 Gy twice a week using mostly abutted photon-electron fields.

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Background And Purpose: Patients with irresectable locoregional recurrent breast cancer en cuirasse (BCEC) do not have effective curative treatment options. Hyperthermia, the elevation of tumor temperature to 40-45 °C, is a well-established radio- and chemotherapy sensitizer. A total of 196 patients were treated with reirradiation and hyperthermia (reRT+HT) at two Dutch institutes from 1982-2005.

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Half of locoregional recurrences after breast cancer treatment are isolated events. Restaging should be carried out to select patients for curative salvage treatment. The approach depends on the characteristics of the primary and recurrent cancer, previous locoregional and systemic treatments, site of recurrence, comorbidities and the patient's wishes.

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Purpose: Superficial tumours with deep infiltration in the upper 15 cm of the trunk cannot be treated adequately with existing hyperthermia systems. The aim of this study was to develop, characterise and evaluate a new flexible two-channel hyperthermia system (AMC-2) for tumours in this region.

Materials And Methods: The two-channel AMC-2 system has two horizontally revolving and height adjustable 70 MHz waveguides.

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Background: Combining reirradiation (reRT) and hyperthermia (HT) has shown high therapeutic value for patients with locoregional recurrent breast cancer (LR). However, additional toxicity of reirradiation (e.g.

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Background/purpose: Treatment options for irresectable locoregional recurrent breast cancer in previously irradiated area are limited. Hyperthermia, elevating tumor temperature to 40-45°C, sensitizes radio-and-chemotherapy. Four hundred and fourteen patients treated with reirradiation+hyperthermia (reRT+HT) in the AMC(n=301) and the BVI(n=113), from 1982 to 2005 were retrospectively analyzed for treatment response, locoregional control (LC) and prognostic factors for LC and toxicity.

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Background: Radiation-associated angiosarcoma (RAAS) of the breast is a rare, aggressive disease. The incidence is increasing with the prolonged survival of women irradiated for primary breast cancer. Surgery is the current treatment of choice.

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Background: The objective of this study was to evaluate the role of reirradiation and hyperthermia in the treatment of radiation-associated sarcoma (RAS) in the thoracic region, which is an increasing, yet extremely rare condition with a poor prognosis.

Methods: Between 1979 and 2009, 16 patients with RAS in the thoracic region were treated in the Academic Medical Center and the Institute Verbeeten with reirradiation and hyperthermia. In 13 patients, this treatment was given for unresectable disease and 3 times after resection as adjuvant treatment.

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Purpose: To analyse the therapeutic effect and toxicity of re-irradiation (re-RT) combined with hyperthermia (HT) following resection or clinically complete remission (CR) of persistent locoregional recurrent breast cancer in previously irradiated area.

Methods And Materials: Between 1988 and 2001, 78 patients with high risk recurrent breast cancer underwent elective re-RT and HT. All patients received extensive previous treatments, including surgery and high-dose irradiation (> or =50Gy).

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Purpose: To characterise and evaluate the capacitive Contact Flexible Microstrip Applicator operating at 70 MHz, CFMA-70. This applicator is introduced for the treatment of superficial tumours with extension in depth beyond the range of regular superficial applicators.

Methods: E-field measurements were performed in an elliptical phantom filled with a saline solution using an E-field vector probe.

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Purpose: To analyse the treatment results of neo-adjuvant chemoradiation combined with regional hyperthermia in patients with resectable esophageal cancer.

Patients And Methods: Between August 2003 and December 2004, 28 patients entered a phase II study combining chemoradiation over a 4.5-week period with five sessions of regional hyperthermia.

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Purpose: To analyse the relation between patients' body size and temperatures during locoregional hyperthermia for oesophageal cancer.

Methods: Patients were treated with neo-adjuvant chemoradiotherapy plus hyperthermia, given with the AMC-4 waveguide system. Temperatures were measured at tumour location in the oesophageal lumen using multisensor thermocouple probes.

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Purpose: The aim of this study was to verify hyperthermia treatment planning calculations by means of measurements performed during hyperthermia treatments. The calculated specific absorption rate (SAR(calc)) was compared with clinically measured SAR values, during 11 treatments in seven cervical carcinoma patients.

Methods: Hyperthermia treatments were performed using the 70 MHz AMC-4 waveguide system.

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