Botulinum toxin injection for internal anal sphincter achalasia after pull-through surgery in Hirschsprung disease.

08:00 EDT 1st November 2019 | BioPortfolio

Summary of "Botulinum toxin injection for internal anal sphincter achalasia after pull-through surgery in Hirschsprung disease."

Botulinum toxin (Botox) was introduced for the management of internal anal sphincter (IAS) achalasia after a pull-through procedure in Hirschsprung disease (HD). We conducted a prospective evaluation of the efficacy and safety of this Botox treatment.Our study group included 15 patients with HD (median age, 4.8 years; range, 1.7-7.4 years) who experienced persistent constipation after pull-through surgery. Rectal biopsy and colon study were performed before Botox injection to exclude agangliosis. Intersphincteric Botox injections (dose, 4 IU/kg) were performed at 3 sites, (3, 6, and 9 o'clock) under general anesthesia. Measured outcomes of efficacy included anorectal manometry, Wexner constipation score and the quality of life score for defecation, measured at baseline and at 2 weeks and 3 months after injection. The Holschneider incontinence score and an assessment of pain, bleeding, heating sensation, and swelling were also performed at follow-up as outcomes of safety.There was no significant change in measured outcomes with Botox treatment. Botox did decrease the number of patients who experienced abdominal distension at 3 months, compared to 2-weeks, post-injection. No major complications were identified, with only 2 cases of anal bleeding that resolved spontaneously. Local tenderness at the injection site was reported by 4 patients, recovering without treatment.The efficacy of Botox, injected into the IAS, for the treatment of achalasia is questionable on short-term follow-up. Larger studies with a longer follow-up period and the use of repeated injections are required to evaluate the evidence for this treatment.


Journal Details

This article was published in the following journal.

Name: Medicine
ISSN: 1536-5964
Pages: e17855


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Medical and Biotech [MESH] Definitions

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Subtype of CLOSTRIDIUM BOTULINUM that produces botulinum toxin type D which is neurotoxic to ANIMALS, especially CATTLE, but not humans.

Subtype of CLOSTRIDIUM BOTULINUM that produces botulinum toxin type F which is neurotoxic to humans and animals.

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