Use of targeted transversus abdominus plane blocks in pediatric patients with anterior cutaneous nerve entrapment syndrome.
Anterior cutaneous nerve entrapment syndrome (ACNES) is a commonly overlooked source of chronic abdominal wall pain. A diagnosis of ACNES should be considered in cases of severe, localized abdominal pain that is accentuated by physical activity. Providers should consider diagnosing ACNES once a patient has both a positive result from a Carnett's test and precise localization of pain. We describe the use of transversus abdominus plane (TAP) blocks to treat ACNES in the pediatric patient population. TAP blocks are a treatment modality which have been described less frequently in the management of this syndrome, with rectus sheath blocks being used more commonly. TAP blocks can be used effectively for ACNES by targeting the site of maximal tenderness, which was identified using ultrasound guidance. Moreover, TAP blocks are an attractive procedure option for ACNES as they are less invasive than other commonly used techniques. We present 3 case series reports of pediatric patients evaluated at our institution for severe abdominal pain to describe the clinical manifestations, sequelae, and outcome of ACNES. Though the exact incidence of ACNES in the pediatric population is unknown, this condition has significant implications from chronic pain. Chronic pain can lead to significant emotional and social impacts on these pediatric patients, as well as their on their families. Further, the extensive utilization of health care resources is impacted when children with undiagnosed ACNES undergo invasive treatments when ACNES is not in the early differential. The purpose of this case series report is to prompt better recognition of the condition ACNES, and to highlight the efficacy of TAP blocks as a management strategy.
Nizamuddin, SL; Koury, KM; Lau, ME; Watt, LD; Gulur, P
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