Abstract Library

#4571 Characterisation and prognostic impact of carcinoid syndrome in bronchial neuroendocrine tumours

Introduction: Metastatic bronchial neuroendocrine tumours (MBNET) are associated with carcinoid syndrome in 10 to 40% of cases. Characteristics of carcinoid heart disease (CHD) are poorly described.

Conference:

Presenting Author: Baudin E

Authors: Hescot S, Marret G, Hadoux J, Laboureau S, Haissaguerre M,

Keywords: bronchial NET, carcinoid syndrome, 5HIAA, carcinoid heart disease,

#4330 Clinical and gut microbiota (GM) markers of aggressive carcinoid syndrome (CS)

Introduction: While most patients (pts) with CS present indolent disease (iCS), others have aggressive disease (aCS). Little is known about biomarkers of aCS.

Conference:

Presenting Author: Riechelmann R

Authors: Riechelmann R, Henrique K, Durant L, Iebba V, Derosa L,

Keywords: neuroendocrine tumour, carcinoid syndrome, gut microbiome,

#4112 Sexual dimorphism in small intestinal NETs: Any association with development of mesenteric metastases?

Introduction: Small-intestinal neuroendocrine tumors (SI-NET) are rising in incidence and complications such as mesenteric and hepatic metastases are associated with increased morbidity and mortality. It has recently been suggested that mesenteric metastases risk increases in women around menopause.

Conference:

Presenting Author: Castanho Martins M

Authors: Hassan D, Bally D, Castanho Martins M, Hodgetts H, Rombouts K,

Keywords: small intestine, mesenteric metastases, mesenteric fibrosis, sexual dimorphism, sex hormone,

#3980 Interest of serum and urinary 5HIAA, serotonin, chromogranin A and NT-proBNP assays as predictive factors for the development of carcinoid heart disease in neuroendocrine tumors

Introduction: Carcinoid heart disease (CHD) is the main complication of carcinoid syndrome (CS) in patients with neuroendocrine tumors (NETs) and has a poor prognosis, with treatment based mainly on high-risk valve replacement surgery.

Conference:

Presenting Author: Walter T

Authors: Lecoeur A, Sfeir R, Damour J, Lombard-Bohas C, Gerard L,

Keywords: neuroendocrine tumors, carcinoid syndrome, carcinoid heart disease, serum 5HIAA, urinary 5HIAA, serotonin, chromogranin A, NT-proBNP,

#3171 Prognostic and diagnostic value of serum 5-HIAA in well-differentiated neuroendocrine neoplasms

Introduction: There are only few studies on the diagnostic value of serum 5HIAA as compared to the 24-hours urinary sampling method and a lack of evidence on the prognostic significance of its serum levels, as well as the markers' ability to predict changes in disease status.

Conference: 18th Annual ENETS Concerence (2021)

Presenting Author: Wedin M

Authors: Wedin M, Mehta S, Angerås-Kraftling J, Wallin G, Daskalakis K,

Keywords: biomarker, serum 5HIAA, well-differentiated NEN,