About

MD: American University of Beirut School of Medicine, Beirut, Lebanon, 2003.

MS: Clinical and Translational Science, Medical College of Wisconsin, Milwaukee, WI, 2012.

Residency: Pediatrics, American University of Beirut Medical Center, Beirut, Lebanon, 2006.

Residency: Pediatrics, Duke University, Durham, NC, 2009.

Fellowship: Pediatric Gastroenterology, Children's Hospital of Wisconsin, Milwaukee, WI, 2012.

Certification: Pediatrics, Pediatric Gastroenterology.

Interests

Pediatric gastroenterology, hepatology and nutrition with a special focus on neuro-gastroenterology and motility disorders.

Services and Specialties

Gastroenterology GI, Neurogastroenterology and Motility Disorders, Colorectal Disorders

Interests

Pediatric neuro-gastroenterology and motility disorders.

Research Areas

Gastroenterology Hepatology and Nutrition

Additional Languages

Arabic, French

Insurance Information

Cincinnati Children's strives to accept a wide variety of health plans. Please contact your health insurance carrier to verify coverage for your specific benefit plan.

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Publications

Pediatric retrograde cricopharyngeal dysfunction diagnosed by high-resolution impedance manometry. Dorfman, L; El-Chammas, K; Mansi, S; Graham, K; Kaul, A. Journal of Pediatric Gastroenterology and Nutrition. 2024; 78:1098-1107.

A multicenter registry study on percutaneous electrical nerve field stimulation for pediatric disorders of gut-brain interaction. Chogle, A; El-Chammas, K; Santucci, N; Grimm, M; Dorfman, L; Graham, K; Kelly, DR; Dranove, JE; Rosen, R; Nurko, S; Chiou, EH; Zhang, L; Simpson, P; Karrento, K. Journal of Pediatric Gastroenterology and Nutrition. 2024; 78:817-826.

Safety and Effectiveness of Prucalopride in Children with Functional Constipation with and without Upper Symptoms. Velez, A; Kaul, A; El-Chammas, KI; Knowlton, L; Madis, E; Sahay, R; Fei, L; Stiehl, S; Santucci, NR. Pediatric Drugs. 2024; 26:187-195.

Percutaneous Electrical Nerve Field Stimulation in Children and Adolescents With Functional Dyspepsia-Integrating a Behavioral Intervention. Santucci, NR; Beigarten, AJ; Khalid, F; El-Chammas, KI; Graham, K; Sahay, R; Fei, L; Rich, K; Mellon, M. Neuromodulation. 2024; 27:372-381.

Interpretation of Impedance Data on High-resolution Impedance Manometry Studies-A Worldwide Survey. Dorfman, L; Mansi, S; El-Chammas, K; Liu, C; Kaul, A. Journal of neurogastroenterology and motility. 2024; 30:46-53.

Liquid and solid gastric emptying and correlation with clinical characteristics in pediatric patients with dyspepsia. Santucci, NR; Corsiglia, J; El-Chammas, K; Shumeiko, O; Liu, C; Kaul, A. Neurogastroenterology and Motility. 2024; 36:e14701.

Comprehensive Manometric Evaluation of Dysphagia in Patients with Down Syndrome. Dorfman, L; Jahagirdar, V; Kaul, S; El-Chammas, K; Kaul, A. Dysphagia. 2023; 38:1589-1597.

Percutaneous electrical nerve field stimulation compared to standard medical therapy in adolescents with functional abdominal pain disorders. Santucci, NR; Sahay, R; El-Chammas, KI; Graham, K; Wheatley, M; Vandenbrink, M; Hardy, J; Fei, L. Frontiers in Pain Research. 2023; 4:1251932.

Novel sensory trigger for gastrocolonic response. Dorfman, L; Wongteerasut, A; El-Chammas, K; Sahay, R; Fei, L; Kaul, A. Neurogastroenterology and Motility. 2023; 35:e14528.

Mo2004 EFFICACY OF SACRAL NERVE STIMULATION IN CHILDREN WITH REFRACTORY IDIOPATHIC CONSTIPATION. Dorfman, L; El-Chammas, K; Singh, A; Mansi, S; Santucci, NR; Kaul, A. Gastroenterology. 2023; 164:s-950.

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4.6
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