key: cord-0756019-wnujpf6e authors: Bell, Jennifer; Alhudairy, Maad; Kazakova, Vera; Johnstone, Michael; Tsao, Lana title: Right and Left-Sided Carcinoid Heart Disease in the Setting of Selective Serotonin Reuptake Inhibitor Use date: 2020-10-21 journal: JACC Case Rep DOI: 10.1016/j.jaccas.2020.07.060 sha: 8bcd59cfbabc563a4da14606a5451efd5cf23f67 doc_id: 756019 cord_uid: wnujpf6e Carcinoid heart disease is a complication of carcinoid syndrome. The role of selective serotonin reuptake inhibitors in carcinoid heart disease is unclear. We present a case of refractory heart failure due to right- and left-sided carcinoid heart disease in the setting of selective serotonin reuptake inhibitor use despite remission of carcinoid syndrome. (Level of Difficulty: Beginner.) afebrile with a blood pressure of 92/60 mm Hg, a heart rate of 103 beats/min, and oxygen saturation of 94% on room air. Her physical exam findings were suggestive of volume overload, including jugular venous distension, bilateral lung crackles, hepatomegaly, and lower-extremity edema. Her past medical history was notable for a malignant carcinoid tumor with mesenteric metastasis in 2009, which was resected and treated with monthly octreotide injections. In June 2017, she was deemed to be in remission based on laboratory and imaging studies; therefore, octreotide was discontinued. In early 2018, she suffered multiple major depressive episodes with psychosis and was started on the selective serotonin reuptake inhibitor (SSRI) citalopram with gradual dose up-titration over the course of several months. Six months later, she developed flushing, diarrhea, and progressively worsening dyspnea on exertion requiring multiple hospitalizations. The differential diagnosis for heart failure exacerbation included coronary ischemia, valvular heart To understand the pathophysiology of carcinoid heart disease. To discuss the role selective serotonin reuptake inhibitors may play in the development of valvular heart disease. To emphasize the significant mortality associated with carcinoid heart disease. To discuss a potential mechanism for selective serotonin reuptake inhibitor-induced carcinoid heart disease late after carcinoid tumor therapy. Biochemical testing in neuroendocrine tumors Carcinoid heart disease: presentation, diagnosis, and management Cell proliferation in carcinoid valve disease: a mechanism for serotonin effects Serotonininduced up-regulation of transforming growth factor-b1 via G-protein signal transduction in aortic valve interstitial cells Carcinoid tumor, selective serotonin reuptake inhibitors, and diarrhea (5HT)-induced valvulopathy: compositional valvular alterations are associated with 5HT2B receptor and 5HT transporter transcript changes in Sprague-Dawley rats Fenfluramine disrupts the mitral valve interstitial cell response to serotonin Somatostatin analogues in the control of neuroendocrine tumours: efficacy and mechanisms Selective serotonin reuptake inhibitors and patients with carcinoid tumor Carcinoid heart disease: the role of urinary 5-hydroxyindoleacetic acid excretion and plasma levels of atrial natriuretic peptide, transforming growth factor-b and fibroblast growth factor