R T van der Kaaij1, J P van Kessel1, J M van Dieren2, P Snaebjornsson3, O Balagué3, F van Coevorden1, L E van der Kolk4, K Sikorska5, A Cats2, J W van Sandick1. 1. Department of Surgical Oncology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands. 2. Department of Gastroenterology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands. 3. Department of Pathology, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands. 4. Department of Clinical Genetics, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands. 5. Department of Biometrics, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands.
Abstract
BACKGROUND: Patients with hereditary diffuse gastric cancer and a CDH1 mutation have a 60-80 per cent lifetime risk of developing diffuse gastric cancer. Total prophylactic gastrectomy eliminates this risk, but is associated with considerable morbidity. The effectiveness (removal of all gastric mucosa) and outcomes of this procedure were evaluated retrospectively. METHODS: All consecutive individuals undergoing a prophylactic gastrectomy for a CDH1 mutation or gastric signet ring cell foci at the authors' institute between 2005 and 2017 were included. RESULTS: In 25 of 26 patients, intraoperative frozen-section examination (proximal resection margin) was used to verify complete removal of gastric mucosa. All definitive resection margins were free of gastric mucosa, but only after the proximal margin had been reresected in nine patients. In the first year after surgery, five of the 26 patients underwent a relaparotomy for adhesiolysis (2 patients) or jejunostomy-related complications (3 patients). Six patients were readmitted to the hospital within 1 year for nutritional and/or psychosocial support (4 patients) or surgical reintervention (2 patients). Mean weight loss after 1 year was 15 (95 per cent c.i. 12 to 18) per cent. For the 25 patients with a follow-up at 1 year or more, functional complaints were reported more frequently at 1 year than at 3 months after the operation: bile reflux (15 versus 11 patients respectively) and dumping (11 versus 7 patients). The majority of patients who worked or studied before surgery (15 of 19) had returned fully to these activities within 1 year. CONCLUSION: The considerable morbidity and functional consequences of gastrectomy should be considered when counselling individuals with an inherited predisposition to diffuse gastric cancer. Intraoperative frozen-section examination is recommended to remove all risk-bearing gastric mucosa.
BACKGROUND:Patients with hereditary diffuse gastric cancer and a CDH1 mutation have a 60-80 per cent lifetime risk of developing diffuse gastric cancer. Total prophylactic gastrectomy eliminates this risk, but is associated with considerable morbidity. The effectiveness (removal of all gastric mucosa) and outcomes of this procedure were evaluated retrospectively. METHODS: All consecutive individuals undergoing a prophylactic gastrectomy for a CDH1 mutation or gastric signet ring cell foci at the authors' institute between 2005 and 2017 were included. RESULTS: In 25 of 26 patients, intraoperative frozen-section examination (proximal resection margin) was used to verify complete removal of gastric mucosa. All definitive resection margins were free of gastric mucosa, but only after the proximal margin had been reresected in nine patients. In the first year after surgery, five of the 26 patients underwent a relaparotomy for adhesiolysis (2 patients) or jejunostomy-related complications (3 patients). Six patients were readmitted to the hospital within 1 year for nutritional and/or psychosocial support (4 patients) or surgical reintervention (2 patients). Mean weight loss after 1 year was 15 (95 per cent c.i. 12 to 18) per cent. For the 25 patients with a follow-up at 1 year or more, functional complaints were reported more frequently at 1 year than at 3 months after the operation: bile reflux (15 versus 11 patients respectively) and dumping (11 versus 7 patients). The majority of patients who worked or studied before surgery (15 of 19) had returned fully to these activities within 1 year. CONCLUSION: The considerable morbidity and functional consequences of gastrectomy should be considered when counselling individuals with an inherited predisposition to diffuse gastric cancer. Intraoperative frozen-section examination is recommended to remove all risk-bearing gastric mucosa.
Authors: Vanessa R Blair; Maybelle McLeod; Fátima Carneiro; Daniel G Coit; Johanna L D'Addario; Jolanda M van Dieren; Kirsty L Harris; Nicoline Hoogerbrugge; Carla Oliveira; Rachel S van der Post; Julie Arnold; Patrick R Benusiglio; Tanya M Bisseling; Alex Boussioutas; Annemieke Cats; Amanda Charlton; Karen E Chelcun Schreiber; Jeremy L Davis; Massimiliano di Pietro; Rebecca C Fitzgerald; James M Ford; Kimberley Gamet; Irene Gullo; Richard H Hardwick; David G Huntsman; Pardeep Kaurah; Sonia S Kupfer; Andrew Latchford; Paul F Mansfield; Takeshi Nakajima; Susan Parry; Jeremy Rossaak; Haruhiko Sugimura; Magali Svrcek; Marc Tischkowitz; Toshikazu Ushijima; Hidetaka Yamada; Han-Kwang Yang; Adrian Claydon; Joana Figueiredo; Karyn Paringatai; Raquel Seruca; Nicola Bougen-Zhukov; Tom Brew; Simone Busija; Patricia Carneiro; Lynn DeGregorio; Helen Fisher; Erin Gardner; Tanis D Godwin; Katharine N Holm; Bostjan Humar; Caroline J Lintott; Elizabeth C Monroe; Mark D Muller; Enrique Norero; Yasmin Nouri; Joana Paredes; João M Sanches; Emily Schulpen; Ana S Ribeiro; Andrew Sporle; James Whitworth; Liying Zhang; Anthony E Reeve; Parry Guilford Journal: Lancet Oncol Date: 2020-08 Impact factor: 41.316