Eric Bissada
Université de Montréal
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Featured researches published by Eric Bissada.
Oral Oncology | 2015
Houda Bahig; B. Fortin; Moein Alizadeh; Louise Lambert; Edith Filion; Louis Guertin; Tareck Ayad; Apostolos Christopoulos; Eric Bissada; Denis Soulières; Francine Gaba Idiamey; Phuc Felix Nguyen-Tan
PURPOSE To report outcomes and predictive factors of overall survival, hospitalization and treatment completion rates in elderly patients with locally advanced head and neck cancer treated with concurrent chemoradiotherapy (CRT). MATERIAL AND METHODS A retrospective analysis of patients aged 70years or older treated with concurrent CRT for locally advanced head and neck cancer was conducted. Univariate and multivariate analysis as well as competing risk survival analysis were used to determine predictors of mortality. Logistic regression was used to predict for hospitalization and treatment completion rates. RESULTS In total, 129 patients were included. Median follow-up was 27months (range: 1.7-125months). Completion rate of combined CRT was 84%. Actuarial OS and DSS at 4years were 56% and 75%. Hospitalization rate was 36%. On multivariate analysis, a Karnofsky performance status (KPS) ⩽80 was predictive of mortality. Using competing risks, KPS ⩽80 and weight loss >5% were predictive of cancer mortality whereas Charlson score ⩾3 was predictive of mortality due to other causes. On logistic regression, patients with abnormal renal function and lower body mass index were more likely to be hospitalized during their treatment course. Charlson score and chemotherapy regimen were predictive of treatment completion. CONCLUSION Concurrent CRT may be a feasible treatment option for healthier older patients at the cost of high hospitalization rates. Pre-treatment factors linked to physiological age such as KPS ⩽80, Charlson score ⩾3, abnormal renal function should be considered at the time of treatment decision.
International Journal of Otolaryngology | 2013
Eric Bissada; Olivier Abboud; Zahi Abou Chacra; Louis Guertin; Xiaoduan Weng; Phuc Felix Nguyen-Tan; Jean-Claude Tabet; Ève Thibaudeau; Louise Lambert; Marie-lise Audet; B. Fortin; Denis Soulières
Background. RAS gene mutations have an impact on treatment response and overall prognosis for certain types of cancer. Objectives. To determine the prevalence and impact of K-RAS codons 12 and 13 mutations in patients with locally advanced HNSCC treated with primary or adjuvant chemo-radiation. Methods. 428 consecutive patients were treated with chemo-radiation therapy and followed for a median of 37 months. From these, 199 paraffin embedded biopsy or surgical specimens were retrieved. DNA was isolated and analyzed for K-RAS mutational status. Results. DNA extraction was successful in 197 samples. Of the 197 specimens, 3.5% presented K-RAS codon 12 mutations. For mutated cases and non-mutated cases, complete initial response to chemoradiation therapy was 71 and 73% (P = 0.32). LRC was respectively 32 and 83% (P = 0.03), DFS was 27 and 68% (P = 0.12), distant metastasis-free survival was 100 and 81% (P = 0.30) and OS was 57 and 65% (P = 0.14) at three years. K-Ras codon 13 analysis revealed no mutation. Conclusion. K-RAS codon 12 mutational status, although not associated with a difference in response rate, may influence the failure pattern and the type of therapy offered to patients with HNSCC. Our study did not reveal any mutation of K-RAS codon 13.
Otolaryngology-Head and Neck Surgery | 2015
Sami P. Moubayed; John S. Sampalis; Tareck Ayad; Louis Guertin; Eric Bissada; Olguta Gologan; Denis Soulières; Louise Lambert; Edith Filion; Phuc Felix Nguyen-Tan; Apostolos Christopoulos
Objective The aim of this study is to identify clinical factors that are predictive of depression and quality of life (QOL) among long-term survivors of head and neck squamous cell carcinoma and to develop predictive scores using these factors. Study Design Cohort study Setting Tertiary referral center. Subjects and Methods A total of 209 posttreatment (median follow-up, 38.7 months) head and neck cancer patients were prospectively evaluated using the Hospital Anxiety Depression Scale (HADS), the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire Core 30, and the EORTC Quality of Life Questionnaire Head and Neck 35, and pretreatment patient-related, tumor-related, and treatment-related predictors were identified using chart review. Bivariate (χ2 and t test) and multivariate (linear regression) analyses were used to construct predictive models. Results Significant pretreatment predictors of depression were identified on multivariate analysis as smoking at diagnosis, >14 alcoholic drinks per week, T3 or T4 status, and >3 medications (P < .001). Two or more of these factors yielded an 82.3% sensitivity in detecting significant depressive symptoms (defined as a HADS cutoff score of 5). Significant predictors of fatigue, global health/QOL, social contact, speech, pain, swallowing, and xerostomia were also identified. Conclusion Pretreatment predictors of long-term depression and QOL have been defined using multivariate models, and an easily applicable predictive score of long-term depression is proposed. Potential eventual clinical applications include prophylactic intervention in at-risk patients.
Journal of Oral and Maxillofacial Surgery | 2008
Eric Bissada; Zahi Abou Chacra; Christian Ahmarani; Jean Poirier; Akram Rahal
PURPOSE Closed hook reduction is a well-accepted approach in reducing selected cases of isolated orbitozygomatic complex fractures. The potential of achieving such reductions under light sedation and local anesthesia has many potential benefits over general anesthesia and should therefore not be overlooked. The goal of this study was to verify if closed reduction under local anesthesia is a feasible alternative to reduction under general anesthesia for selected cases of orbitozygomatic complex fractures. Furthermore, an attempt was made at identifying those who would benefit from such an option without compromising end results as opposed to those who would require open reduction with the use of internal fixation devices (ORIF) to ensure favorable outcomes. MATERIALS AND METHODS Over the period of July to October 2005, we attempted to reduce 8 consecutive orbitozygomatic complex fractures on an outpatient basis with the use of local anesthesia. RESULTS We have successfully reduced 6 of 8 such fractures. CONCLUSION Closed hook reduction under light sedation and local anesthesia is a feasible and safe procedure in selected cases of noncomminuted zygomatic fractures. Coupling both physical examination and immediate postoperative radiographic evaluation ensures substantiation of accurate reduction and permits immediate final corrections if considered necessary.
Head and Neck-journal for The Sciences and Specialties of The Head and Neck | 2017
Anastasios Maniakas; Apostolos Christopoulos; Eric Bissada; Louis Guertin; Marie-Jo Olivier; Jacques Malaise; Tareck Ayad
Perioperative practices in thyroid surgery vary from one specialty, institution, or country to the next. We evaluated the preoperative, intraoperative, and postoperative practices of thyroid surgeons focusing on preoperative ultrasound, vocal cord evaluation, wound drains, and hospitalization duration, among others.
Head and Neck-journal for The Sciences and Specialties of The Head and Neck | 2016
Mohammad A. Al Felasi; Eric Bissada; Tareck Ayad
The purpose of this study was to present the feasibility of reconstructing an inferior orbital rim and cheek defect with a pedicled osteomyocutaneous submental flap.
Advances in Endocrinology | 2014
Navid Zahedi Niaki; Harmeet Singh; Sami P. Moubayed; Rebecca Leboeuf; Jean-Claude Tabet; Apostolos Christopoulos; Tareck Ayad; Marie-Jo Olivier; Louis Guertin; Eric Bissada
The aim of this study is to evaluate the additional costs associated with calcium monitoring and treatment as well as evaluate the incidence and predictors of postthyroidectomy hypocalcemia. Methods. This case-control study involved thyroidectomy and completion thyroidectomy patients operated on between January 2012 and August 2013. Cases were defined as requiring calcitriol supplementation, and controls did not require supplementation. Patient (age, sex), nodule (cytology, pathology), surgical data (neck dissection, parathyroid identification, and reimplantation), and hospital stay (days hospitalized in total and after drain removal) were compared. Comparisons were made using -tests and chi-square tests with an alpha of 0.05. The estimated cost associated with the extended stay was then compared with the cost of supplementation. Results. A total of 191 patients were evaluated (61 cases and 130 controls). Predictors of hypocalcemia include female age, neck dissection, and parathyroid reimplantation. Hypocalcemic patients were hospitalized for a longer period of time after drain removal (2.5 versus 0.8 days, ), and hospitalization costs after neck drain removal were higher in this group as well (8,367.32
Laryngoscope | 2018
Badr Ibrahim; Akram Rahal; Eric Bissada; Apostolos Christopoulos; Sami P. Moubayed; Louis Guertin; Jean-Claude Tabet; Marie-Jo Olivier; Tareck Ayad
versus 2,534.32
International Journal of Cancer | 2017
Guillaume B. Cardin; Isabelle Clément; Louis Guertin; Tareck Ayad; Eric Bissada; Phuc Felix Nguyen-Tan; Edith Filion; Julie Guilmette; Olguta Gologan; Denis Soulières; Francis Rodier; Philip Wong; Apostolos Christopoulos
, ). Conclusion. Postoperative hypocalcemia incurs significant additional health care costs at both the local and health care system levels.
Journal of Clinical Medicine Research | 2015
Christophe Dagenais; Sami P. Moubayed; Tareck Ayad; Marie-Jo Olivier; Louis Guertin; Eric Bissada; Jean-Claude Tabet; Apostolos Christopoulos
To compare the surgical and functional outcomes between two harvesting techniques for the inferiorly based facial artery musculomucosal (FAMM) flap for oral cavity and oropharynx reconstructions.