His primary scientific interests are in Internal medicine, Gastroenterology, Reflux, Esophagus and Esophageal disease. His Internal medicine research integrates issues from Sphincter and Endocrinology. His Gastroenterology research incorporates themes from Heartburn and Impedance–pH monitoring, GERD.
His Reflux study incorporates themes from Omeprazole, Ambulatory, Asymptomatic and Postprandial. His Esophagus research is multidisciplinary, incorporating perspectives in Thorax and Dysphagia. Donald O. Castell has researched Esophageal disease in several fields, including Metaplasia and Pepsin.
Internal medicine, Gastroenterology, Reflux, Esophagus and GERD are his primary areas of study. In the subject of general Internal medicine, his work in Heartburn, Esophageal disease and Esophageal motility is often linked to In patient, thereby combining diverse domains of study. His studies in Gastroenterology integrate themes in fields like Esophagitis, Esophageal sphincter and Esophageal pH monitoring.
He has included themes like Ambulatory, Postprandial and Intensive care medicine in his Reflux study. His Esophagus research is multidisciplinary, relying on both Anesthesia, Peristalsis and Dysphagia. His Anesthesia study combines topics in areas such as Esophageal motility disorder and Chest pain.
His primary areas of study are Internal medicine, Gastroenterology, GERD, Reflux and Esophageal motility. Internal medicine is represented through his Esophageal motility disorder, Heartburn, Esophagus, Achalasia and Hepatology research. He focuses mostly in the field of Esophagus, narrowing it down to matters related to Anesthesia and, in some cases, Cardiac chest pain.
Donald O. Castell works mostly in the field of Gastroenterology, limiting it down to topics relating to Reflux esophagitis and, in certain cases, Biopsy, as a part of the same area of interest. His research in GERD intersects with topics in Omeprazole and Pathogenesis. His work in Reflux tackles topics such as Ambulatory which are related to areas like Significant difference and Throat clearing.
Donald O. Castell mainly focuses on Internal medicine, Gastroenterology, Reflux, GERD and Esophageal motility disorder. His Internal medicine research incorporates elements of Psychological intervention and Dysphagia. The Dysphagia study combines topics in areas such as Anesthesia, Medical history, Chest pain, Esophagus and Esophageal spasm.
His studies deal with areas such as Esophagitis, Esophageal motility, Esophagram and Screening Examination as well as Gastroenterology. Donald O. Castell interconnects Ambulatory and Positive test in the investigation of issues within Reflux. His GERD research focuses on Proton-pump inhibitor and how it connects with Disease, Hiatal hernia and Gastric acid.
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Updated guidelines for the diagnosis and treatment of gastroesophageal reflux disease
Kenneth R. DeVault;Donald O. Castell.
The American Journal of Gastroenterology (1999)
Symptomatic gastroesophageal reflux: Incidence and precipitating factors
Otto T. Nebel;Michael F. Fornes;Donald O. Castell.
Digestive Diseases and Sciences (1976)
Gastro-oesophageal reflux monitoring: review and consensus report on detection and definitions of acid, non-acid, and gas reflux
Daniel Sifrim;D Castell;P J Kahrilas.
Acid and non-acid reflux in patients with persistent symptoms despite acid suppressive therapy. A multicentre study using combined ambulatory impedance-pH monitoring
Inder Mainie;Radu Tutuian;Steven Shay;Marcelo Vela.
Twenty-four hour ambulatory simultaneous impedance and pH monitoring: A multicenter report of normal values from 60 healthy volunteers
Steven Shay;Radu Tutuian;Daniel Sifrim;Marcelo Vela.
The American Journal of Gastroenterology (2004)
Esophageal Testing of Patients With Noncardiac Chest Pain or Dysphagia. Results of Three Years' Experience With 1161 Patients
Philip O. Katz;Christine B. Dalton;Joel E. Richter;Wallace C. Wu.
Annals of Internal Medicine (1987)
Esomeprazole (40 mg) compared with lansoprazole (30 mg) in the treatment of erosive esophagitis
Donald O Castell;Peter J Kahrilas;Joel E Richter;Nimish B Vakil.
The American Journal of Gastroenterology (2002)
Gastroesophageal Reflux: Pathogenesis, Diagnosis, and Therapy
Joel E. Richter;Donald O. Castell.
Annals of Internal Medicine (1982)
Nighttime heartburn is an under-appreciated clinical problem that impacts sleep and daytime function: the results of a Gallup survey conducted on behalf of the American Gastroenterological Association
Reza Shaker;Donald O Castell;Philip S Schoenfeld;Stuart J Spechler.
The American Journal of Gastroenterology (2003)
MBS Measurement Tool for Swallow Impairment—MBSImp: Establishing a Standard
Bonnie Martin-Harris;Martin B. Brodsky;Yvonne Michel;Donald O. Castell.
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