Investigator

Martin Koskas

Hpital Bichat Claude Bernard

Research Interests

MKMartin Koskas
Papers(5)
Reply. Exploring the …Impact of Sociodemogr…Lymph node metastasis…Impact of neoadjuvant…First external validi…
Collaborators(10)
Cyrille HuchonLobna OuldamerPauline ChauvetRadostina VasilevaRalph SaadehSarah AidaT. GauthierThomas BoisraméVincent LavouéYohan Kerbage
Institutions(8)
Hpital Bichat Claude …Hpital LariboisireCentre Hospitalier Un…Unknown InstitutionHpitaux Universitaire…Centre Hospitalier Un…Université de Rennes 1Centre Hospitalier Un…

Papers

Impact of Sociodemographic Characteristics on the Quality of Care in the Surgical Management of Endometrial Cancer: An Analysis of a National Database in the United States

<b><i>Introduction:</i></b> Quality of care is an emerging concern, notably in oncology. The aim of the present study was to identify the sociodemographic factors influencing the quality of care in the USA concerning the surgical management of endometrial cancer (EC) through the Surveillance Epidemiology and End Results (SEER) database using already published Belgian quality indicators (QI). <b><i>Methods:</i></b> Using the SEER database 1988–2013, we identified 151,752 patients treated for EC. Six QI were extracted from a Belgian study on quality of care in EC because of their applicability to the SEER. These QI evaluated only the surgical management. We examined the association between sociodemographic characteristics and quality of care with a logistic regression model. We compared our results with those defined as theoretical target by the Belgian initiative and considered a QI to be accurately met if >80% of the population met the indicator, moderately met between 50 and 80%, and poorly met under 50%. <b><i>Results:</i></b> Concerning the 6 surgical QIs, one was accurately met, 3 were moderately met, and 2 were poorly met. For example, 73% of the patients with a high-risk EC underwent a pelvic lymphadenectomy. Age over 75 years old, black ethnicity, lower-income group, without partner, and uninsured had a negative impact on adherence to QIs. <b><i>Conclusion:</i></b> Demographic discrepancies persist in the surgical management of EC, impacting evidence-based care.

Impact of neoadjuvant chemotherapy cycles on survival of patients with advanced ovarian cancer: A French national multicenter study (FRANCOGYN)

The purpose of this study was to compare two groups of patients presenting advanced ovarian carcinoma benefiting from neoadjuvant chemotherapy (NAC) followed by cytoreductive surgery: after 3-4 cycles (group 1) or ≥ 5 cycles (group 2), regarding overall survival (OS) and progression-free survival (PFS), complications related to surgery as well as the extent of cytoreduction were assessed. We conducted a retrospective, multicenter cohort study in nine referral centers of France, reviewing the charts of all patients who underwent NAC between January 2000 and June 2017. We performed an OS analysis using multivariate Cox regression models adjusted for potential confounders. We also analyzed PFS and surgery-related morbidity. Of 501 patients included, 236 (47.1 %) benefited from ≤ 4 NAC cycles and 265 (52.9 %) from ≥ 5 NAC cycles. Characteristics data were similar in both groups. The rate of achievement of complete surgery was similar in both groups (p = 0.28). Surgical morbidity and postoperative complications showed no significant differences between both groups. The median OS was 54.2 months, 64 months for group 1 and 49.2 months for group 2. The 5-year survival rate was 45.6 % and 27.6 %. This difference was not statistically significant [HR 1.81 (0.89-3.71), p = 0.09]. Five-year PFS was 19.7 % and 11.7 % respectively (p = 0.31). In a large series of advanced ovarian cancer, patients receiving late IDS (≥ 5 NAC cycles) seem to show a poorer prognosis than patients operated on earlier. The survival appears to be mainly determined by optimal resection and response to chemotherapy.

First external validity study of the Fagotti score in ovarian cancer

Abstract Epithelial ovarian cancer is mostly discovered at the stage of peritoneal carcinosis. Complete cytoreductive surgery improves overall survival. The Fagotti score is a predictive score of resectability based on peritoneal laparoscopic exploratory. Our aim was to study the inter-observer concordance in an external validation of the Fagotti score. An observational, prospective, multicenter study was conducted using the Francogyn research network. The primary outcome was inter-observer concordance of the Fagotti score. 15 patients in which an ovarian mass was discovered were included. For each patient, the first exploratory laparoscopy before any treatment/chemotherapy was recorded. This bank of 15 videos was subject to blind review accompanied by a Fagotti score rating by 11 gynecological surgeons specializing in oncology. A total of 165 blind reviews were performed. Inter-observer concordance was very good for the Fagotti score with an intraclass correlation coefficient (ICC) of 0.83 [95% CI 0.71; 0.93]. Inter-observer concordance for the adjusted Fagotti score, which accounts for unexplorable areas with extensive carcinomatosis, resulted in an ICC of 0.64 [95% CI 0.46; 0.82]. According to the reviewers, the three least explorable parameters were mesentery involvement, stomach infiltration and liver damage. The ICC of the explorable Fagotti score, i.e. score with deletion of the parameters most often unexplored by laparoscopy, was 0.86 [0.75–0.94]. This study confirms the reproducibility of the Fagotti score during first assessment laparoscopies in cases of advanced ovarian cancer. The explorable Fagotti score has an equivalent or better inter-observer concordance than the Fagotti score.

163Works
5Papers
21Collaborators
Endometrial NeoplasmsOvarian NeoplasmsCarcinoma, Ovarian EpithelialNeoplasm Recurrence, LocalNeoplasm Staging
Country

FR