{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,7]],"date-time":"2026-11-07T03:48:13Z","timestamp":1794023293330,"version":"4.8.0"},"reference-count":19,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2023,8,14]],"date-time":"2023-08-14T00:00:00Z","timestamp":1691971200000},"content-version":"vor","delay-in-days":13,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Neuroendocrinology"],"published-print":{"date-parts":[[2023,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Neuroendocrine tumours (NETs) are rare but once metastasised, can lead to the release of vasoactive substances into the systemic circulation, and the classical features of carcinoid syndrome (CS) such as flushing and diarrhoea. A consequence of CS is carcinoid heart disease (CHD) which primarily affects the right\u2010sided heart valves and can eventually lead to right heart failure. In this cohort, tricuspid and\/or pulmonary valve replacement provides symptomatic relief. A patent foramen ovale (PFO) in patients with CHD can lead to the shunting of oxygen deficient blood to the systemic circulation causing hypoxaemia and reduced exercise tolerance. Additionally, the haemodynamic changes caused by regurgitant right\u2010sided heart valves can increase the patency of a PFO allowing the passage of vasoactive substances to the systemic circulation thereby affecting the left\u2010sided heart valves. We present data on the incidence of PFO in patients referred for surgery at our centre, in which the standard approach is to close the defect at time of cardiothoracic surgery. In addition, we present a series of four cases that highlight how the option of percutaneous PFO closure prior to open valve surgery may reduce haemodynamic instability and open a window of opportunity to enhance preoperative status. Percutaneous PFO closure then acts as a bridge to definitive cardiothoracic surgery, although there are risks in such an approach.<\/jats:p>","DOI":"10.1111\/jne.13323","type":"journal-article","created":{"date-parts":[[2023,7,17]],"date-time":"2023-07-17T04:24:59Z","timestamp":1689567899000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Patent foramen ovale in carcinoid heart disease: The potential role for and risks of percutaneous closure prior to cardiothoracic surgery"],"prefix":"10.1111","volume":"35","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0384-6530","authenticated-orcid":false,"given":"Sasha","family":"Douglas","sequence":"first","affiliation":[{"name":"Department of Cardiology University Hospitals Birmingham (Queen Elizabeth) NHS Hospitals Foundation Trust  Birmingham UK"},{"name":"Institute of Cardiovascular Sciences, University of Birmingham  Birmingham 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