Alexandra Nassar

ORCID: 0000-0003-0728-3456
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About
Contact & Profiles
Research Areas
  • Hepatocellular Carcinoma Treatment and Prognosis
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Pancreatic and Hepatic Oncology Research
  • Gallbladder and Bile Duct Disorders
  • Colorectal Cancer Treatments and Studies
  • Liver Disease and Transplantation
  • Renal cell carcinoma treatment
  • Gastric Cancer Management and Outcomes
  • Pediatric Hepatobiliary Diseases and Treatments
  • Surgical Simulation and Training
  • Organ Transplantation Techniques and Outcomes
  • Viral-associated cancers and disorders
  • Abdominal vascular conditions and treatments
  • Colorectal Cancer Surgical Treatments
  • Celiac Disease Research and Management
  • Biliary and Gastrointestinal Fistulas
  • Aortic aneurysm repair treatments
  • Augmented Reality Applications
  • Helicobacter pylori-related gastroenterology studies
  • Anatomy and Medical Technology
  • Colorectal Cancer Screening and Detection
  • Peptidase Inhibition and Analysis
  • Potassium and Related Disorders
  • Esophageal and GI Pathology
  • Abdominal Trauma and Injuries

Université Paris Cité
2020-2025

Assistance Publique – Hôpitaux de Paris
2022-2025

Hôpital Cochin
2022-2025

Groupe Hospitalier Cochin - Port-Royal, Hôtel-Dieu, Broca - La Collégiale
2024-2025

Hôpital Beaujon
2023-2024

Sorbonne Université
2022-2024

Institut Systèmes Intelligents et de Robotique
2022-2024

Sorbonne Paris Cité
2024

Maternité Port Royal
2023

Hôpital Bichat-Claude-Bernard
2023

To identify risk factors for conversion, develop a predictive Conversion Risk Score (CRS), and assess the association between conversion severe postoperative complications. occurs in 15-30% of minimally invasive left pancreatectomies (MILP). potential negative impacts on outcomes are poorly described. Retrospective, nationwide, multicenter study including all MILP (laparoscopy robot) performed 2010 2021. were identified by multivariate mixed model, CRS was developed "training-set" validated...

10.1097/sla.0000000000006685 article EN cc-by-nc-nd Annals of Surgery 2025-02-28

Duodenal ulcer (DU) is a common problem in patients with chronic liver disease (CLD) and inadequate response to H2 receptor antagonists. Omeprazole might be more effective. In DU-CLD patients, Helicobacter pylori prevalence low. Nitric oxide increased gastric mucosa cirrhosis. Oxygen-free radicals have role inflammation are abnormal CLD. Nitrotyrosine marker of nitric oxygen-free radical toxic mucosal reaction.Sixty-nine were divided into 2 groups: control (26 DU) CLD groups (43 DU-CLD). was...

10.1080/003655201750153250 article EN Scandinavian Journal of Gastroenterology 2001-05-01

10.1007/s11548-024-03082-6 article EN International Journal of Computer Assisted Radiology and Surgery 2024-03-07

Introduction: Nonfunctioning pancreatic neuroendocrine tumor (NF-PanNET) ≤2 cm can be observed or resected. Surgery remains recommended for NF-PanNET >2 but its extent, enucleation (EN) versus formal resection, controversial. Methods: Multicentric retrospective cohort of sporadic patients treated with EN. Short- and long-term outcomes were compared according to size on imaging cm. Results: 131 underwent EN NF-PanNET, including 103 (79.0%) 28 (21.0%) (extremes, 4–55 mm). Patients’...

10.1159/000541078 article EN Neuroendocrinology 2024-08-23

Abstract Background Other than location of the primary colorectal cancer (CRC), a few factors are known to influence intrahepatic distribution liver metastases (CRLM). We aimed assess whether anatomy portal vein (PV) could CRLM. Patients and methods with CRLM diagnosed between January 2018 December 2022 at two tertiary centers were included imaging was reviewed by radiologists independently. Intra-operator concordance assessed according intraclass correlation coefficient (ICC). The diameter,...

10.2478/raon-2024-0039 article EN cc-by-nc-nd Radiology and Oncology 2024-09-01
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