Endoscopic Balloon Dilatation Combined With PRP Injection in Colonic Stenosis in Crohn's Disease

Inclusion criteria

• Diagnosed as CD;

• Stenosis of the colon was found during colonoscopy, and surgery was not considered for the time being; ③ Narrow length <5cm; ④ The patients agreed to undergo endoscopic balloon dilatation and voluntarily signed the informed consent to participate in this study, and were capable of complying with the agreement.

Exclusion criteria

• The patient has contraindications for endoscopic therapy, such as coagulation disorder, severe cardiopulmonary dysfunction, active bleeding, and inability to cooperate.

• Deep and large active ulcer was found in the stenosis;

• < 18 years old;

• Foreign patients;

• Patients with a history of malignant tumors, including melanoma (except local skin cancer);

• Pregnant or nursing patients;

• Patients who could not be followed at all nodes of the primary outcome indicator; Other diseases that researchers believe could put patients at risk;

• Other diseases that researchers believe could put patients at risk.