Publications by authors named "Isabelle Dumas"

Article Synopsis
  • This study looks at which cervical cancer patients might do better with a special kind of treatment called pulsed-dose-rate (PDR) brachytherapy compared to high-dose-rate (HDR).
  • They studied 50 patients to compare the two treatments and used special models to see how effective each treatment would be.
  • The results showed that only a few patients really benefited from PDR, with specific measurements helping doctors figure out who would get the most help from it.
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Article Synopsis
  • Stage III NSCLC is a diverse group of patients with various treatment options, including surgery, radiotherapy, and chemotherapy, with insights from the PACIFIC trial influencing current strategies.
  • A study at the University Hospital Grenoble Alpes from 2010 to 2017 analyzed the treatment outcomes of 476 Stage III NSCLC patients, finding that only 62% of those scheduled for surgery actually underwent the procedure.
  • Patients who had neoadjuvant chemotherapy followed by surgery had a median overall survival of 53.2 months, compared to 23.9 months for those treated with chemoradiotherapy; however, switching from surgery to chemoradiotherapy was linked to decreased survival, highlighting the importance of a multidisciplinary approach in
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Background: At least half of patients with lung cancer have comorbidities, which can affect treatment decisions and survival. Associated with comorbidity, polypharmacy can also have consequences on patient care. This study will evaluate both polypharmacy and comorbidities in a cohort of hospitalized patients on the administration of chemotherapy and survival.

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Purpose: Lip carcinoma represents one of the most common types of head and neck cancer. Brachytherapy is a highly effective therapeutic option for all stages of lip cancers. We report our experience of pulsed dose rate brachytherapy (PDR) as treatment of lip carcinoma.

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Background: Local recurrence in gynecological malignancies occurring in a previously irradiated field is a challenging clinical issue. The most frequent curative-intent treatment is salvage surgery. Reirradiation, using three-dimensional image-guided brachytherapy (3D-IGBT), might be a suitable alternative.

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Purpose: To examine dose-volume effect relationships for anorectal morbidity in children treated with image-guided brachytherapy for pelvic tumors.

Methods And Materials: Medical records of all consecutive children with pelvic tumors treated in our center and receiving image-guided pulsed-dose-rate brachytherapy with or without external beam radiation therapy (EBRT) between 2005 and 2019 were reviewed. The effect of the minimal doses to the most exposed 0.

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Scarce data exist on concurrent chemotherapy in locally advanced cervical cancer (LACC) patients (pts) treated with image-guided adaptive brachytherapy (IGABT). We examined the effect of a number of chemotherapy cycles and their interaction with brachytherapy dose/volume parameters. Clinical records of 209 consecutive pts treated for a LACC were reviewed.

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Purpose: Esophageal cancer is characterized by its propension to local evolution, which conditions prognosis and quality of life. Brachytherapy may be a therapeutic option for all stages of esophageal cancer.

Methods And Materials: This retrospective unicentric study included all consecutive patients treated for an esophageal high-dose-rate brachytherapy in our institution from 1992 to 2018.

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Emotional skills refer to the ability to identify, understand, express, use one's emotions and those of others. For caregivers, who are experiencing increasingly stressful work conditions and who are accompanying people going through painful moments in their lives, emotional skills are a valuable tool. They make it easier to take a step back from the professional and personal experience and thus promote a better quality of life at work.

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Brachytherapy is a specific form of radiotherapy consisting of the precise placement of radioactive sources directly into or next to the tumor. This technique is indicated for patients affected by various types of cancers. It is an optimal tool for delivering very high doses to the tumor focally while minimizing the probability of normal tissue complications.

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Introduction: Median survival of small-cell lung cancer (SCLC) patients is usually around 1 year. The advent of new drugs may have slightly improved their prognosis. We aimed to assess whether SCLC response to chemotherapy and survival had changed over time.

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Purpose: To describe the evolution of external beam radiation therapy (EBRT) from EMBRACE-I (general guidelines for EBRT) to the initial phase of the EMBRACE-II study (detailed protocol for EBRT).

Methods And Materials: EMBRACE-I enrolled 1416 locally advanced cervical cancer patients treated with chemoradiation including image-guided adaptive brachytherapy during 2008 to 2015. From March 2016 until March 2018, 153 patients were enrolled in the ongoing EMBRACE-II study, which involves a comprehensive detailed strategy and accreditation procedure for EBRT target contouring, treatment planning, and image guidance.

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Purpose: Only scarce data are available on the possibility to include radiobiological optimization as part of the dosimetric process in cervical cancer treated with brachytherapy (BT). We compared dosimetric outcomes of pulse-dose-rate (PDR) and high-dose-rate (HDR)-BT, according to linear-quadratic model.

Methods And Materials: Three-dimensional dosimetric data of 10 consecutive patients with cervical cancer undergoing intracavitary image-guided adaptive PDR-BT after external beam radiation therapy were examined.

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No dose volume parameter has been identified to predict late bowel toxicities in locally advanced cervical cancer (LACC) patients treated with image-guided adaptive brachytherapy. We examined the incidence of bowel toxicities according to the total reference air kerma (TRAK) in 260 LACC patients. In both univariate and multivariate analysis, late morbidity positively correlated with a TRAK ≥2 cGy (centigray) at 1 meter, emphasizing the importance of this parameter in term of late bowel morbidity.

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Purpose: To investigate the isodose surface volumes (ISVs) for 85, 75 and 60 Gy EQD2 for locally advanced cervix cancer patients.

Materials And Methods: 1201 patients accrued in the EMBRACE I study were analysed. External beam radiotherapy (EBRT) with concomitant chemotherapy was followed by MR based image-guided adaptive brachytherapy (MR-IGABT).

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Purpose: To study correlations between dose-volume parameters of the whole bladder and bladder trigone and late urinary toxicity in locally advanced cervical cancer patients treated with pulsed-dose-rate brachytherapy.

Methods And Materials: Patients with locally advanced cervical cancer treated with chemoradiation therapy and pulsed-dose-rate brachytherapy from 2004 to 2015 were included. Cumulative dose-volume parameters of the whole bladder and bladder trigone were converted into 2-Gy/fraction equivalents (EQD2, with α/β = 3 Gy); these parameters, as well as clinical factors, were analyzed as predictors of toxicity in patients without local relapse.

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Objective: We report outcomes of cervical cancer patients with bladder invasion (CCBI) at diagnosis, with focus on the incidence and predictive factors of vesicovaginal fistula (VVF).

Results: Seventy-one patients were identified. Twenty-one (30%) had para-aortic nodal involvement.

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Purpose: Primary vaginal cancer is a rare disease for which treatment has been modeled based on cervical cancer. We report our experience in the use of image-guided adaptive brachytherapy (IGABT) in this indication.

Methods And Materials: Patients treated for vaginal cancer with a combination of external beam radiation therapy and IGABT were identified through electronic search.

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Background: Stage IV non-small cell lung cancer (NSCLC) is considered incurable; however, some patients with only few metastases may benefit from treatment with a curative intent. We aimed to identify the prognostic factors for stage IV NSCLC with synchronous solitary M1.

Methods: A database constructed from our weekly multidisciplinary thoracic oncology meetings was retrospectively screened from 1993 to 2012.

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Objective: In cervical cancer patients, dose-volume relationships have been demonstrated for tumor and organs-at-risk, but not for pathologic nodes. The nodal control probability (NCP) according to dose/volume parameters was investigated.

Material And Methods: Patients with node-positive cervical cancer treated curatively with external beam radiotherapy (EBRT) and image-guided brachytherapy (IGABT) were identified.

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Background: No study has examined the possibility to perform an organ sparing strategy in older patients with penile carcinoma, and amputation is frequently proposed. We report our experience of interstitial brachytherapy for the conservative treatment of penile carcinoma confined to the glans in patients aged of 70years and more.

Methods: A total of 55 patients candidates to conservative brachytherapy were identified.

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Physical activity is associated with decreased breast cancer risk. The underlying biological mechanisms could include the reduction of the local inflammation in the breast tissue. We conducted a cross-sectional study to assess the association between the physical activity and the protein expression levels of eleven mediators of inflammation in normal breast tissue of 164 women having breast cancer.

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Increased levels of pro-inflammatory markers and decreased levels of anti-inflammatory markers in the breast tissue can result in local inflammation. We aimed to investigate whether local inflammation in the breast tissue is associated with age-related lobular involution, a process inversely related to breast cancer risk. Levels of eleven pro- and anti-inflammatory markers were assessed by immunohistochemistry in normal breast tissue obtained from 164 pre- and postmenopausal breast cancer patients.

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Objective: No data are available on the feasibility of pulsed dose rate (PDR) brachytherapy in very young children. Our experience of PDR brachytherapy for bladder prostate (BP) rhabdomyosarcoma (RMS) is reported, with focus on compliance and dosimetric parameters.

Materials And Methods: Treatment parameters and outcome of consecutive BP RMS patients treated in our center were examined.

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Purpose: Radiotherapy of nasal carcinomas results in cure rates comparable to surgery, with anatomic preservation and good cosmesis. Brachytherapy (BT) overcomes difficulties with dosimetric coverage and affords a localized and highly conformal irradiation. We report our experience of BT for early-stage nasal squamous cell carcinomas (SCCs).

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