Danielle van Reijn-Baggen

2 Results of a national survey among gastrointestinal surgeons 49 Respondents’ characteristics N (%) Do you feel you have enough time to instruct and advice the patient regarding the use of laxatives, lifestyle, and ointment? *SC Never/almost never In less than half of the cases In more than half of the cases Almost always/always 4 (4) 7 (7) 19 (18) 76 (72) How do you perform the botulinum toxin (BT) injections? *SC Outpatient clinic, without anesthesia Outpatient clinic, with local anesthesia General- or spinal anesthesia or sedation Not applicable, I do not perform this procedure 34 (32) 4 (4) 45 (42) 23 (22) How often do you repeat BT injections? *SC One time Two times More than two times I do not repeat 16 (19) 41 (49) 22 (27) 4 (5) Do you simultaneously give BT in the levator ani muscle when treating CAF? *SC Never/almost never In less than half of the cases In more than half of the cases Almost always/always 63 (76) 13 (16) 6 (7) 1 (1) What is your preferred surgical procedure for CAF (except BT)? *SC Fissurectomy Lateral internal sphincterotomy (LIS) Advancement flap repair 59 (71) 22 (27) 2 (2) In case you perform a fissurectomy, do you simultaneously give BT intersphincteric? *SC Never/almost never In less than half of the cases In more than half of the cases Almost always/always 15 (18) 7 (8) 19 (23) 42 (51) In case you perform BT under anesthesia, do you simultaneously perform a fissurectomy? *SC Never/almost never In less than half of the cases In more than half of the cases Almost always/always 24 (29) 15 (18) 22 (27) 22 (27) Follow-up How do you manage the follow-up after starting a treatment? *SC No follow-up Physical appointment Telephone call According to the needs of the patient 0 (0) 60 (57) 22 (21) 24 (23) How many times did you refer a patient with CAF to another specialist last year? (number) 0 times 1-5 times 6-10 times 61 (58) 42 (40) 3 (3) Table 1. Continued

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