Endoscopic Ultrasound-Guided Botox Injection for Refractory Anal Fissure.
Navkiran RandhawaAhamed A KhalyfaRida AslamM Christopher RoebuckMahnoor InamKamran AyubPublished in: Journal of clinical medicine (2022)
EUS-guided botox injection into the internal sphincter appears to be a promising technique for patients with refractory anal fissure with pain.