Treatment surgery for fissure in ano
**Core Concept**
Treatment for fissure in ano involves surgical intervention to relieve chronic pain and promote healing. The primary goal is to reduce spasms of the anal sphincter and increase blood flow to the area.
**Why the Correct Answer is Right**
Lateral internal sphincterotomy is a widely accepted treatment for fissure in ano. During the procedure, a small incision is made in the internal anal sphincter to reduce spasms and promote healing. This is achieved by reducing the resting tone of the sphincter, which in turn increases blood flow to the area and facilitates the healing process.
**Why Each Wrong Option is Incorrect**
**Option A:** Infrared photocoagulation is a treatment option for fissure in ano, but it is not the most effective method, especially in patients with significant sphincter hypertonia.
**Option B:** Hemorrhoidectomy is a surgical procedure for treating hemorrhoids, not fissure in ano.
**Option C:** Botulinum toxin injections can provide temporary relief for fissure in ano by reducing sphincter spasms, but they do not address the underlying cause and may require repeated injections.
**Clinical Pearl / High-Yield Fact**
Lateral internal sphincterotomy is a highly effective treatment for fissure in ano, with a high success rate and minimal complications. It is essential to identify patients who would benefit from this procedure, as it can significantly improve their quality of life.
**Correct Answer:** C.