Results of a national survey among Dutch surgeons treating patients with colorectal carcinoma. Current opinion about follow‐up, treatment of metastasis, and reasons to revise follow‐up practice

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Abstract
Objective Follow‐up after curative resection of colorectal carcinoma (CRC) has been subjected to debate concerning its effectiveness to reduce cancer mortality. Current national and international guidelines advise CEA measurements every 3 months during 3 years after surgery. The common clinical practice and opinion about follow‐up for colorectal carcinoma, was evaluated by means of a survey among Dutch general surgeons. Method A web‐based survey of follow‐up after treatment of CRC was sent to all registered Dutch general surgeons. A reply from 246 surgeons treating patients for colorectal carcinoma in 105 out of 118 hospitals was received (response rate 91%). Questions related to actual follow‐up protocol, opinion about serum CEA monitoring, liver and/or lung metastasectomy, and motivation to participate in a new trial concerning follow‐up. Results For the majority of surgeons the length of follow‐up was influenced by age of the patient (62%) and physical condition (76%) prohibiting hepatic metastasectomy. The generally accepted follow‐up protocol consisted of CEA measurements every 3 months in the first year and six‐monthly thereafter, and ultrasound examination of the liver every 6 months. Nearly all surgeons (92%) were willing to participate in a new study of follow‐up protocol. Conclusion The adherence to national guidelines for the follow‐up of colorectal carcinoma is low. The indistinctness about follow‐up after curative treatment of colorectal carcinoma also affects clinical practice. Recent advancements in imaging techniques, liver and lung surgery have changed circumstances, which are not yet anticipated upon in current guidelines. Renewal of follow‐up based upon scientific evidence is required.