KEY POINTS
·In recent years, a complete cure of the disease is still a huge challenge for ENT doctors.
· This advanced surgical method are more suitable for the those refractory LCG who have no response to the standardized medical treatment and voice correction for 3 months.
· Application of local flipped pedicle microflap combined with botulinum toxin A injection in the treatment of refractory LCG is effective and safe.
·Based on the principle of preserving normal mucosa, the surgery can achieve the lesion clearance, restore the integrity of vocal fold cover-body, preserve the perichondrium, and reserve a time window for microflap recovery.
·Precision operability with great patience and caution is needed in the surgery. The microflap tension should be appropriate, the torsion or fenestration should be prevented from necrosis of the mucosa, and the fully mucosal coverage of the surgical wound is the key to the success of the operation.
KEY WORDS granuloma; larynx; CO2 laser; microflap; botulinum toxin