Rumination syndrome: when to suspect and how to treat

Virtual Reality and Mindfulness Approaches in the Treatment of Rumination Syndrome

Rumination syndrome (RS) is the repeated, effortless food regurgitation during or immediately after eating or drinking, which could be followed by rechewing, reswallowing, or spitting out of the regurgitant gastric contents. The mechanism by which RS ensues is because of the habitual contraction of the abdominal wall muscles leading to increased intra-abdominal pressure and regurgitation of gastric contents. Therefore, diaphragmatic breathing techniques and biofeedback are helpful in these patients to counteract the habitual abdominal contractions. We present a case of a 26-year-old woman diagnosed with RS unresponsive to conventional therapy (antiemetics and antispasmodics).

Rumination syndrome: Critical review

Rumination syndrome is a functional disorder characterized by the involuntary regurgitation of recently swallowed food from the stomach into the mouth, from where it can be re-chewed or expelled. Clinically, it is characterized by repeated episodes of effortless food regurgitation. The most usual complaint is frequent vomiting. The physical mechanism that generates regurgitation events is dependent on an involuntary process that alters abdominal and thoracic pressures accompanied by a permissive oesophageal-gastric junction. The diagnosis of rumination syndrome is clinical, highlighting the importance of performing an exhaustive anamnesis on the characteristics of the symptoms. Complementary tests are used to corroborate the diagnosis or rule out organic pathology. Treatment is focused on behavioural therapies as the first line, reserving pharmacological and surgical therapies for refractory cases.

Rumination syndrome. A review article

Rumination syndrome is a functional gastrointestinal disorder characterized by effortless postprandial regurgitation of ingested food into the mouth. An unperceived postprandial contraction of the abdominal wall could be a key mechanism. In those patients, retrograde flow of the ingested gastric content into the mouth is produced due to a simultaneous combination of elevated intra-abdominal pressure and negative intrathoracic pressure. The estimated prevalence is around 2% in the general adult population. The main clinical characteristics include: a) early postprandial regurgitation, b) the effortlessly regurgitated material is similar to the ingested food, c) the regurgitated material is spit out or swallowed again. The clinical diagnosis of rumination syndrome relies on the clinical criteria. High resolution esophageal manometry, ideally including impedance monitoring, can be an important adjunct for making the clinical diagnosis. Its management is based on instruction as to the nature of the pathology, education in postprandial diaphragmatic breathing, and the assessment of possible psychiatric comorbidity. Baclofen use is reserved for second-line treatment in patients with refractory symptoms.

Rumination Syndrome: Recognition and Treatment

PURPOSE OF REVIEW

The purpose of this paper is to discuss current diagnostic and treatments of rumination. Rumination is often underdiagnosed or misdiagnosed in adults, especially when symptoms suggest regurgitation rather than vomiting accompanied by re-chewing and re-swallowing and should be included in the differential diagnosis. It is primarily diagnosed clinically by ROME-IV or DSM-5.

RECENT FINDINGS

That rumination can be re-affirmed by characteristic patterns on objective testing such as high-resolution esophageal manometry and 24-h pH impedance testing. However, although gastroduodenal manometry and EMG are helpful, these tests are slowly losing interest given their technical nature of data gathering, time consumption, cost burden, and patient discomfort.

SUMMARY

Rumination is primarily diagnosed clinically by ROME-IV or DSM-5 in addition to high-resolution esophageal manometry and 24-h pH impedance. Management is challenging and usually a combination of behavioral, pharmacological, and rarely surgical treatment. Recent data demonstrate that the combination of behavioral techniques such as diaphragmatic breathing exercises and/or with baclofen has promising results. Further research is necessary to further define objective criteria for diagnosis and other therapeutic modalities for treatment.