Questionnaire for diagnosis and response to therapy in rumination syndrome.

Rumination is a behavioral disorder characterized by regurgitation of food without retching. It is diagnosed clinically by the Rome Criteria and treated primarily by diaphragmatic breathing. Despite diagnosis and follow-up being based on symptomatic responses to therapies, there are no published or validated questionnaires. To address this care-gap, a rumination questionnaire was developed and reviewed by two expert esophagologists and five patients diagnosed with rumination. Ultimately, an eight-point questionnaire with scoring ranging from -1 to 10 was finalized. This newly developed questionnaire was implemented on five additional patients diagnosed clinically with rumination syndrome with improvement after interventions noted.

How to recognize and treat rumination syndrome.

PURPOSE OF REVIEW: Rumination syndrome (RS) is a functional gastroduodenal disorder characterized by repeated effortless regurgitation or vomiting of recently ingested food without retching. RS generally has been considered a rare entity. However, it has been increasingly recognized that many RS patients are likely to be underdiagnosed. This review discusses how to recognize and manage RS patients in clinical practice. RECENT FINDINGS: A recent epidemiological study that included over 50,000 individuals found that the prevalence of RS around the world is 3.1%. In patients with proton pump inhibitor (PPI)-refractory reflux symptoms, postprandial high-resolution manometry combined with impedance (HRM/Z) reveals that RS accounts for up to 20% of those cases. HRM/Z can be a gold standard for objective RS diagnosis. In addition, off-PPI 24-h impedance pH monitoring can suggest the possibility of RS when it reveals frequent postprandial, non-acid reflux with a high symptom index. Modulated cognitive behavioral therapy (CBT) targeting secondary psychological maintaining mechanisms almost eliminates regurgitation. SUMMARY: The prevalence of RS is higher than generally thought. For patients suspected of RS, HRM/Z is useful to distinguish RS from gastroesophageal reflux disease. CBT can be a highly effective therapeutic option.

A Retrospective Review of Baclofen Treatment for Children with Rumination Syndrome at a Single Center.

BACKGROUND: Baclofen can decrease rumination frequency in adults with rumination syndrome. Outcomes of baclofen treatment in children with rumination syndrome have not been described. The aim of this study was to examine the safety and efficacy of baclofen in children with rumination syndrome in combination with behavioral therapy at a single center. METHODS: We performed a retrospective review of children aged 0-18 years with rumination syndrome based on Rome criteria and prescribed baclofen by a pediatric gastroenterologist at the Nationwide Children's Hospital, Columbus, Ohio, USA, between 2012 and 2019. Children without follow-up data or who were prescribed baclofen for other symptoms were excluded. RESULTS: We identified 44 children with rumination syndrome who were prescribed baclofen by a pediatric gastroenterologist. Seventeen either did not have follow-up data or never started the medication. We included 27 patients in the study: 22 (81.5%) female, median age 14.5 years (range 10-18 years) and 100% Caucasian. Twenty patients (74%) received baclofen 5 mg and seven patients (26%) received baclofen 10 mg three times daily. Most patients received behavioral therapy and baclofen simultaneously. Thirteen patients (48%) reported improvement in symptoms, primarily a decrease in rumination frequency, at their first follow-up visit. Regurgitation frequency per week decreased after starting baclofen (p < 0.05). One patient experienced dizziness. No other side effects were reported. CONCLUSION: Nearly half of our patients with rumination syndrome improved after baclofen. It was well tolerated with minimal side effects. This suggests that baclofen in addition to behavioral therapy can improve symptoms of rumination syndrome. Prospective, controlled studies in a larger cohort of children with rumination syndrome are needed to confirm these findings.

Rumination syndrome: Critical review. / Síndrome de rumiación, revisión crítica.

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.

Comprehensive Cognitive-Behavioral Interventions Augment Diaphragmatic Breathing for Rumination Syndrome: A Proof-of-Concept Trial.

BACKGROUND: Rumination syndrome (RS) is often treated in medical settings with 1-2 sessions of diaphragmatic breathing to target reflexive abdominal wall contraction in response to conditioned cues (e.g., food). However, many patients remain symptomatic and require additional behavioral interventions. AIMS: In an attempt to augment diaphragmatic breathing with additional interventions, we tested the proof-of-concept of a comprehensive Cognitive-Behavioral Therapy (CBT) for RS. METHODS: In an uncontrolled trial, adults with RS completed a 5-8 session CBT protocol, delivered by one of two psychology behavioral health providers. CBT included two main phases: awareness training and diaphragmatic breathing (Phase 1) and modularized interventions chosen by the therapist and patient to target secondary maintenance mechanisms (Phase 2). At pre-treatment, post-treatment, and 3-month follow-up, participants completed a semi-structured interview on RS symptoms with an independent evaluator. RESULTS: Of 10 eligible individuals (ages 20-67 years, 50% female) offered treatment, all 10 initiated treatment and eight completed it. All participants endorsed high treatment credibility at Session 1. Permutation-based repeated measures ANOVA showed participants achieved large reductions in regurgitations across treatment [F(1,7) = 17.7, p = .007, η p2 = .69]. Although participants reduced regurgitations with diaphragmatic breathing during Phase 1, addition of other CBT strategies in Phase 2 produced further large reductions [F(1,7) = 6.3, p = .04, η p2 = .47]. Of eight treatment completers, treatment gains were maintained at 3-month follow-up for n = 6. CONCLUSIONS: Findings provide evidence of feasibility, acceptability, and proof-of-concept for a comprehensive CBT for RS that includes interventions in addition to diaphragmatic breathing to target secondary maintenance mechanisms. Randomized controlled trials are needed.

Chronic vomiting in children: A prospective study reveals rumination syndrome is an important etiology that is underdiagnosed and untreated.

BACKGROUND: The diagnosis of rumination syndrome is frequently overlooked, and under-recognized; children are subjected to unnecessary testing and inappropriate treatment for a condition which can be diagnosed clinically and managed easily. In the first ever systematic exploration of this condition from India, we present a prospective study on children with chronic vomiting in which rumination emerged as the predominant cause. METHODS: This was a prospective study in which all consecutive children (5-18 years) presenting with chronic or recurrent vomiting of at least 2-month duration were enrolled. Clinical history was assessed by a physician-administered questionnaire. All subjects underwent standard testing followed by additional investigations as required. The ROME III criteria were used. RESULTS: Fifty children (28 boys, age 12.2 + 3 years) were enrolled. Diagnosis was rumination syndrome 30, cyclical vomiting 8, functional vomiting 6, intestinal tuberculosis 4, intestinal malrotation 1, and superior mesenteric artery syndrome 1. Children with rumination syndrome had a relapsing and remitting (12, 40%) or a chronically symptomatic course (18, 60%). These children received incorrect diagnoses (26, 87%) or no diagnosis (3, 10%) and extensive investigation before referral. Before referral, children with rumination syndrome were treated with a median of four drugs (range 1 to 9); two underwent surgery (appendectomy) for their symptoms while one child was subjected to electroconvulsive therapy. Overall, resolution after treatment was seen in 26 (87%) with a relapse in 8 (27%) children. CONCLUSION: The diagnosis of rumination syndrome is delayed and these children are often inappropriately treated. Therapy in the form of diaphragmatic breathing has a good success rate.

Outcomes of Treating Rumination Syndrome with a Tricyclic Antidepressant and Diaphragmatic Breathing.

BACKGROUND: Rumination syndrome is a functional gastrointestinal disorder characterized by effortless postprandial regurgitation and accompanied by gastric visceral hypersensitivity. Almost invariably, the onset of symptoms is preceded by a psychologically stressful situation, and anxiety is often an accompanying complaint. In this background of gastric visceral hypersensitivity, anxiety and psychological stress, we investigated the effectiveness of combining a tricyclic antidepressant (TCA) with diaphragmatic breathing/relaxation techniques for the treatment of rumination syndrome. MATERIALS AND METHODS: Patients who fulfilled the Rome IV criteria for rumination syndrome received hands-on instructions and/or coaching on diaphragmatic breathing techniques, were given relaxing auditory media, started on a TCA, and completed a follow-up symptoms questionnaire after undergoing a minimum of 3 months of this therapy. RESULTS: A total of 44 patients, 35 women; mean age 40.4 (range 20-71) were identified. Mean time from onset of symptoms to diagnosis was 36.0 months (range 6-180). Weight loss ranged from 1.4 to 39.5 kg. Approximately 65.9% had a history of anxiety and/or depression, and a separate 65.9% reported the onset of symptoms were chronologically related to an inciting event and/or psychological stressor. After a mean follow-up period of 8.8 months, 90.9% of patients reported improvement in their symptoms, with a mean subjective improvement from baseline of 68.9%, and specifically, 45.5% of patients reported ≥80% improvement. Weight increased or stabilized in 80.6% of those initially reporting weight loss. CONCLUSIONS: The combination of a TCA with diaphragmatic breathing/relaxation techniques is an effective treatment modality for the management of rumination syndrome as it addresses the underlying factors identified in this entity.

Rumination syndrome: Assessment of vagal tone during and after meals and during diaphragmatic breathing.

BACKGROUND: Pathophysiology of rumination syndrome (RS) is not well understood. Treatment with diaphragmatic breathing improves rumination syndrome. The aim of the study was to characterize vagal tone in patients with rumination syndrome during and after meals and during diaphragmatic breathing. METHODS: We prospectively recruited 10 healthy volunteers (HV) and 10 patients with RS. Subjects underwent measurement of vagal tone using heart rate variability. Vagal tone was measured during baseline, test meal and intervention (diaphragmatic (DiaB), slow deep (SlowDB), and normal breathing). Vagal tone was assessed using mean values of root mean square of successive differences (RMSSD), and area under curves (AUC) were calculated for each period. We compared baseline RMSSD, the AUC and meal-induced discomfort scores between HV and RS. Furthermore, we assessed the effect of respiratory exercises on symptom scores, and number of rumination episodes. KEY RESULTS: There was no significant difference in baseline vagal tone between HV and RS. During the postprandial period, there was a trend to higher vagal tone in RS, but not significantly (P > .2 for all). RS had the higher total symptom scores than HV (P < .011). In RS, only DiaB decreased the number of rumination episodes during the intervention period (P = .028), while both DiaB and SlowDB increased vagal tone (P < .05 for both). The symptom scores with the 3 breathing exercises showed very similar trends. CONCLUSIONS AND INFERENCES: Patients with RS do not have decreased vagal tone related to meals. DiaB reduced number of rumination events by a mechanism not related to changes in vagal tone.

Diagnosis and Treatment of Rumination Syndrome: A Critical Review.

Rumination syndrome (RS) is characterized by the repeated regurgitation of material during or soon after eating with the subsequent rechewing, reswallowing, or spitting out of the regurgitated material. Rumination syndrome is classified as both a "Functional Gastroduodenal Disorder" (by the Rome Foundation's Functional Gastrointestinal Disorders: Disorders of Gut-Brain Interaction, 4th edition) and a "Feeding and Eating Disorder" (by the Diagnostic and Statistical Manual of Mental Disorders, 5th edition). Rumination syndrome is a disorder that is often inaccurately diagnosed or missed, resulting in patients experiencing protracted symptoms and not receiving treatment for long periods. There is a lack of clear consensus for RS diagnosis, mechanisms that maintain RS, and treatment. Guided by existing research and our clinical expertise, we synthesize available evidence and provide recommendations for clinical use. We present a case example and critically summarize the literature to date to (i) increase clinicians' understanding of heterogeneous clinical presentations, (ii) suggest assessment strategies to facilitate accurate diagnosis, and (iii) provide a schematic for intervention options. Overall, we recommend clinicians recognize the heterogeneous features of RS when considering diagnosis, assess for RS symptoms by clinical history, and treat RS with targeted diaphragmatic breathing while using other methods as augmented intervention or alternative treatment.