Outcomes after prophylactic gastrectomy for hereditary diffuse gastric cancer

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 mucos...

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Bibliographic Details
Published in:British journal of surgery 2018-01, Vol.105 (2), p.e176-e182
Main Authors: van der Kaaij, R. T., van Kessel, J. P., van Dieren, J. M., Snaebjornsson, P., Balagué, O., van Coevorden, F., van der Kolk, L. E., Sikorska, K., Cats, A., van Sandick, J. W.
Format: Article
Language:English
Subjects:
Adult
Antigens, CD - genetics
Cadherins - genetics
Female
Follow-Up Studies
Gastrectomy - adverse effects
Gastrectomy - methods
Gastric cancer
Genetic Predisposition to Disease
Humans
Male
Middle Aged
Mucous membrane
Mutation
Neoplastic Syndromes, Hereditary - prevention & control
Neoplastic Syndromes, Hereditary - surgery
Ostomy
Prophylactic Surgical Procedures - adverse effects
Prophylactic Surgical Procedures - methods
Retrospective Studies
Stomach - pathology
Stomach - surgery
Stomach Neoplasms - prevention & control
Stomach Neoplasms - surgery
Treatment Outcome
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Summary: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. Frozen section of margins is key
ISSN:0007-1323
1365-2168
DOI:10.1002/bjs.10754