Clin Rheumatol. 2022 Jan;41(1):95-104. doi: 10.1007/s10067-021-05900-7. Epub 2021 Sep 01.
A 4-week comparison of capillaroscopy changes, healing effect, and cost-effectiveness of botulinum toxin-A vs prostaglandin analog infusion in refractory digital ulcers in systemic sclerosis.
Clinical rheumatology
Saeedeh Shenavandeh, Mozhdeh Sepaskhah, Sanaz Dehghani, MohammadAli Nazarinia
Affiliations
Affiliations
- Department of Internal Medicine, Division of Rheumatology, Namazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran. [email protected].
- Molecular Dermatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
- Department of Internal Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
- Department of Internal Medicine, Division of Rheumatology, Namazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran.
PMID: 34471968
PMCID: PMC8409478 DOI: 10.1007/s10067-021-05900-7
Abstract
INTRODUCTION: Systemic sclerosis (SSc) is a systemic multi-organ disease. Raynaud's phenomenon (RP) and digital ulcers (DUs) in SSc patients can be resistant to usual treatments. We studied the clinical benefits, capillaroscopy changes, and cost-effectiveness of local injection of botulinum toxin-A (BTX-A) and intravenous prostaglandin analogs (iloprost/alprostadil) in patients with SSc with resistant DUs.
METHOD: In a clinical trial study, we evaluated 26 patients fulfilling the ACR/EULAR SSc criteria with resistant DUs. Visual analog scale of pain and RP, skin color and type of ulcers, and capillaroscopy were assessed before and 1 month after treatment. In the first group, 20 units of BTX-A was injected at the base of each involved fingers by a dermatologist. In the second group, 20 µg iloprost or 60 µg alprostadil was infused daily. The cost of these treatments was compared.
RESULT: In 26 patients (43 fingers), there were 16 patients (22 fingers) in the BTX-A and 10 patients (21 fingers) in the prostaglandin group. In 95.5% of the BTX-A and 90.5% of the prostaglandin group, the ulcers were healed. In both groups, a significant decrease in pain was seen (p < 0.0001). Capillaroscopy patterns in both groups were not changed although the microhemorrhages disappeared significantly (p value: BTX-A: 0.03 and prostaglandin: 0.002). The cost was significantly lower in the BTX-A injection group (p < 0.0001).
CONCLUSION: Both BTX-A and prostaglandins helped in the healing and pain control of DUs. In capillaroscopy, microhemorrhages were significantly decreased in both groups. In the BTX-A group, the cost was significantly lower as an outpatient treatment and was more time-saving.
KEY MESSAGES: • BTX-A and prostaglandin analogs both contributed to the healing of digital tip ulcers and improving the pain • In capillaroscopy, microhemorrhages were significantly decreased or disappeared after both treatments • There was no significant side effect in both groups • Comparing both groups, in the BTX-A group, the cost was significantly lower when performed on an outpatient treatment and more time-saving.
© 2021. International League of Associations for Rheumatology (ILAR).
Keywords: Botulinum toxin; Capillaroscopy; Digital ulcer; Prostaglandin analogs; Systemic sclerosis
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