Long-term control of abdominal pain related to POTS: two case reports in pediatrics.

AIM: To describe two consecutive cases of Postural Orthostatic Tachycardia Syndrome (POTS)-related chronic abdominal pain control in children after bilateral splanchnic block. PATIENTS & METHODS: Two pediatric patients with chronic abdominal pain related to POTS received celiac and T11 splanchnic plexus block for pain control. RESULTS: While celiac plexus block did not provide any substantial relief of their pain, splanchnic block provided a long-term improvement in pain scores, nausea and vomiting cessation. CONCLUSION: Bilateral T11 splanchnic block should be considered in patients with POTS-related chronic abdominal pain, nausea and vomiting.