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Patients with chronic cough experience major alteration in their quality of life. Given its numerous etiologies and treatments, this disease is a complex entity. To help clinicians involved in patient management of patients, guidelines have been issued by a group of French experts. They address definitions of chronic cough and initial management of patients with this pathology. We present herein the second-line tests that might be considered in patients whose coughing has persisted, notwithstanding initial management. The experts have also put forward a definition of unexplained or refractory chronic cough (URCC), the objective being to more precisely identify those patients whose cough persists despite optimal management. Lastly, these guidelines indicate the pharmacological and non-pharmacological interventions of use in URCC. Amitriptyline, pregabalin, gabapentin or morphine combined with speech and/or physical therapy are mainstays in treatment strategies. Other treatment options, such as P2X3 antagonists, are being developed and have generated high hopes among physicians and patients alike., (Copyright © 2023 SPLF. Published by Elsevier Masson SAS. All rights reserved.)

Nausea is a common feeling felt by the subject as a state likely to evolve into vomiting. However a lot of nausea is maintained without being followed by vomiting. Nausea can be isolated or accompanied by a clinical picture. Some situations are often accompanied by nausea like dizziness, migraines, transport sickness, pregnancy, acute or chronic digestive disorders or anxious state. Outside of a know pathological context, there must be an etiologic investigation. When they are accompanied by vomiting and general signs - especially a fever - nausea must first eliminate a potentially serious disease (intracranial hypertension, meningitis, occlusion…). Nausea resounds on the patient's quality of life, they can decrease concentration and professional activities. Many patients do not treat nausea and use rest and waiting for the resolution of symptoms. In the absence of signs of gravity taking a treatment without a medical prescription can be considered (recommendation ANSM 2008) especially for recurrent crisis whose cause can be precisely identified. They are many pharmacological substances with antinausea effects. If the etiological approach is essential and sometimes sufficient, symptomatic relief can be helped by some agents with less intense nausea and shorter duration especially by using of antihistaminics, anticholinergic agents and derivatives of phenothiazines., (Copyright © 2019 Elsevier Masson SAS. All rights reserved.)

Gastroesophageal reflux disease (GERD) frequently occurs in association with chronic respiratory diseases although the casual link is not always clear. Several pathophysiological and experimental factors are considered to support a role for GERD in respiratory disease. Conversely, respiratory diseases and bronchodilator treatment can themselves exacerbate GERD. When cough or severe asthma is being investigated, GERD does not need to be systematically looked for and a therapeutic test with proton pump inhibitors is not always recommended. pH impedance monitoring is now the reference diagnostic tool to detect non acid reflux, a form of reflux for which proton pump inhibitor treatment is ineffective. Recent data have shown a potential role of GERD in idiopathic pulmonary fibrosis and bronchiolitis obliterans following lung transplantation, leading to discussions about the place of surgery in this context. However, studies using pH impedance monitoring are still needed to better understand and manage the association between GERD and chronic respiratory diseases., (Copyright © 2015 SPLF. Published by Elsevier Masson SAS. All rights reserved.)

Novel endoscopic techniques for the analysis of the digestive wall have recently been developed to allow investigating digestive diseases beyond standard "white-light" macroscopic imaging of the mucosal surface. Among innovative techniques under clinical evaluation, confocal endomicroscopy and optical frequency domain imaging (OFDI) are the most promising. Indeed, these techniques allow performing in vivo microscopy with different levels in terms of depths and magnification, as well as functional assessment of structures. Some of these techniques, such as capsule-based OFDI, are also less invasive than traditional endoscopy and might help screening large groups of patients for specific disorders, for instance oesophageal precancerous diseases. In this review, we will focus on the results obtained with these techniques in precancerous, inflammatory and neuromuscular disorders., (© 2015 médecine/sciences – Inserm.)

Aims: The primary objectives of this observatory were: (1) to assess the prevalence of extradigestive symptoms (EDS) (asthma, pharyngeal pain, chronic hoarseness, nocturnal breathlessness, chronic or nocturnal cough, non-cardiac chest pain) which are suspected of being associated with gastro-oesophageal reflux (GERD) in a population consulting in general practice; (2) to compare the diagnostic and therapeutic approach adopted initially and at follow-up to the recommendations of the French-Belgian Consensus Conference on adult GERD (1999)., Methods: The survey was conducted among 578 general practitioners (GPs). All EDS were investigated in patients (≥ 18 y.o.) consulting over 3 days. Only patients considered a priori as having GERD related EDS were included in study. At each visit (initial and at 1 and 4 months), the diagnostic and therapeutic approach was analyzed, scored, and the GP's certainty regarding the accountability of GER in the EDS rated using the visual analogue scale (VAS). The criteria used by GPs to evaluate GER accountability as certain or doubtful were examined., Results: Out of 33,487 consulting patients, 14% presented EDS (cough: 6.7%; ENT symptoms: 7.7%; chest pain: 2.3%). Among patients presenting EDS, 22% (1063) were included in the study based on suspicion of GERD, whereas 45% (481) had neither history nor digestive symptoms typically associated with GERD. The diagnostic approach did not vary whether the patient presented typical EDS associated symptoms (A+) or not (A-): 83.7% of patients (A+) versus 86.5% (A-) immediately received acid reflux treatment; 4.6% (A+) versus 7.9% (A-) underwent additional testing and 5.2% (A+) versus 4.4% (A-) were referred to a specialist. In 87% of cases, acid reflux treatment included a proton pump inhibitor (PPI) (half-dose: 47.2%, standard dose 50.3%, double dose 2.5%); in 8.1% of patients initial acid reflux treatment included an H2 antagonist while in 3.2% of patients treatment included prokinetic drugs. At 4 months of follow-up, GERD accountability was considered certain in 74.7% of the patients included in the assessment (794/1063). The GPs opinion was based on response to acid reflux treatment in 92% of cases, on endoscopy in 6.7% of cases, on pH monitoring in 0.3% of cases and on a specialist's opinion in 6% of cases., Conclusion: There is a considerable difference between the recommendations of the French-Belgian Consensus Conference on adult GERD and the practices observed in general medicine. The diagnostic and therapeutic approaches were empirical with recourse to additional exams in less than 10% of cases. The degree of certainty as to GERD accountability was based primarily on response to PPI treatment., (Copyright © 2013 Elsevier Masson SAS. All rights reserved.)

It has become increasingly evident over the last years that Parkinson's disease is a multicentric neurodegenerative disease that affects several neuronal structures outside the substantia nigra, among which is the enteric nervous system. The aims of the present article are to discuss the role of the enteric nervous system lesions in pathology spreading (Braak's hypothesis) and in the gastrointestinal dysfunction encountered in Parkinson's disease. Owing to its accessibility to biopsies, we further discuss the use of the enteric nervous system as an original source of biomarker in Parkinson's disease., (Copyright © 2012 Société nationale française de médecine interne (SNFMI). Published by Elsevier SAS. All rights reserved.)

Aim: In patients with acute gastroenteritis, general behaviour of patients as well as medical care remain poorly documented. The aim of this work was to determine clinical and demographic characteristics, reason for visiting a doctor, and medical care in adult patients with acute gastroenteritis., Methods: During the winter epidemic peak of acute diarrhea, 2,217 general practitioners filled in standardized clinical observations of 17,273 patients (mean age 40 yrs) with acute gastroenteritis., Results: There were abdominal pain, nausea, and vomiting in respectively 72%, 53% and 43% of patients. Thirty one percent of patients had fever. Nausea and vomiting were more frequently observed in younger patients (15-25 yrs) than in older ones. More severe diarrhea more frequent nausea, vomiting and abdominal pain (p<0.0001). Time for consulting was less than 24 and 48h in respectively 42% and 87% of patients, and was different according to professional classes. Predominant reason for consulting was the physical consequences of the disease (78%). Self medication was reported in 42% of patients and was different according to age and professional classes. Prescription of antidiarrheal drugs was reported by 91% of patients, sometimes in association with antiemetic (43%) and/or antispasmodic agents (35%). Additional explorations (mainly biological work-up) were rare but they were more frequently considered in older and female patients as well as in patients with severe and prolonged diarrhea. Stoppage of work was different among professional classes. It was reported in one third of patients, and was more frequent in patients with severe diarrhea., Conclusions: This study describes the behaviour of patients and doctors facing acute gastroenteritis and illustrates important fluctuations according age and professional classes. It shows high discomfort and repercussions of acute gastroenteritis especially regarding stoppage of work.

Irritable bowel syndrome is a chronic relapsing disorder. In most patients, symptom severity and clinical characteristics change frequently. Nonetheless, broad progressive trends can be defined. Over the very short term, symptoms occur over short sequences appearing sequentially and are interrupted by short remission periods. Over the medium term (3 months), early recovery from symptoms is observed in 20%-40% of patients. No good clinical predictors of IBS progression seem to exist even if clinical improvement at 3 months seems related to a better prognosis after a 1-year follow-up. Over the long term (several years), symptoms are still present in 60%-70% of patients. Symptom turnover is high in these patients from either transitioning into other irritable bowel syndrome subgroups or overlapping with dyspeptic symptoms. Psychiatric comorbidities appear to be of primary importance in the clinical course of patients with irritable bowel syndrome.

Objective: Gastroesophageal reflux disease (GERD) affects about 10% of the French population, who have symptoms at least weekly. Nocturnal symptoms are associated with more severe disease. The aim of this study was to determine the prevalence of nocturnal reflux symptoms among patients seeing general practitioners and to assess their consequences on sleep quality., Methods: For three consecutive days, 562 general practitioners identified among all the adult patients they saw those with GERD symptoms (heartburn or regurgitation) in the previous 3 months and characterized the symptoms., Results: Prevalence of GERD among the 36663 consulting patients was 8.3%, and 64.6% of them (that is, 5.4% of the general population) reported nocturnal GERD. Patients with nocturnal symptoms did not differ from those with only diurnal symptoms except smokers had a significantly higher rate of nocturnal than diurnal symptoms (28 versus 23%, p=0.0053). GERD symptoms were related to nocturnal awakening in 58.6% of patients, were present in the early morning for 41.6% and in the evening at bedtime for 39.5%. Nocturnal awakening, difficulty in falling asleep and nightmares occurred significantly more frequently in patients with nocturnal symptoms (respectively 56 versus 24%; 41 versus 31%; 14 versus 9%). Likewise, atypical nondigestive symptoms occurred significantly more frequently in patients with nocturnal symptoms (74 versus 51%, p<0.0001). Quality of sleep was considered "poor or very poor" more frequently in patients with nocturnal symptoms (58 versus 34%, p<0.0001)., Conclusion: Approximately 2/3 of GERD patients have nocturnal symptoms that appear to have a significant negative impact on sleep and well-being. These results show the need to evaluate specific therapeutic approaches to reduce sleep disturbances in these patients.

Objectives: To evaluate the different endoscopic ways of diagnosing Barrett's esophagus (BE) and assess the quality of BE endoscopic reports using a rating grid., Material and Methods: Three-hundred and forty-six reports concerning BE (1997-2000) were divided into two groups, circular and non-circular BE, and rated on a scale (0 to 20 points) by two readers using a grid to evaluate, in particular, the description of BE, hiatal hernia and esophagitis and biopsy practice., Results: The score was >=10 points for 129 reports (37.3%). Points were deducted because of inadequate description of BE and hiatal hernia and particularly for a lack of biopsies (54% of reports). The indication of endoscopy (BE monitoring) and the form of medical arrangements (out- or in patients) had a significant effect on the mean score of the reports. Circular BE (46.5% of all reports) was described with respect to the height of the squamo-columnar junction (Z line) and the length of BE, and non-circular BE (40.4% of all reports) with respect to the number and height of the strips. Hiatal hernia, if detected, was described (67.2%) by its length, and esophagitis by standard classifications (70.1%). Finally, biopsy practice differed significantly as a function of the indication, the experience and status of the operator, or the medical management of the patient., Conclusion: This study showed that the endoscopic reports of BE are not sufficiently rigorous and that the absence of biopsies is frequently not justified. In the future, standardized reports could be proposed by working groups of experts and then prospectively tested and approved.

Helicobacter pylori eradication failure generally concerns between 10 and 30% of the patients. When eradication failure occurs, it is necessary a) to try to identify the potential causes, b) to confirm the indication of eradicating H. pylori, and c) to choose a second line therapeutic strategy. Among the factors most frequently associated with failed eradication, are poor compliance, younger age, smoking, and weak gastric inflammatory activity. The major factor of resistance is related to the sensitivity of the bacterial strain to antibiotics used. In France, resistance to clarithromycin is around 10-15% and resistance to metronidazole around 30%. In order to limit development of resistance, it seems preferable to avoid associating clarithromycin and metronidazole in the first line treatment. At best, the first line treatment must follow the official recommendations (PPI-amoxicillin and clarithromycin). In the event of eradication failure, second line treatment calls upon tritherapy which, due to the low rate of resistance to amoxicillin, associates double-dose PPI, amoxicillin and the antibiotic not used during the first line treatment (metronidazole if clarithromycin was initially used and conversely). This approach allows to eradicate between 50 and 80% of the first-line failure patients. In case of further failure a culture with measurement of the strain sensitivity is required. Subsequent treatment associates PPI with the antibiotics to which the strain is sensitive for a longer duration. In some cases, other effective antibiotics, such as rifabutin, might be used in these circumstances.

Digestive involvement in systemic sclerosis is frequent and serious, because it provides morbidity and fatality. From the pathophysiologic point of view, the first step could be Raynaud-associated neural dysfunction, followed by smooth muscle atrophy then irreversible muscle fibrosis. Oesophageal disorder is common with its main consequence: the occurrence of gastroesophageal reflux disease which could run into peptic erosive oesophagitis. Oesophageal manometry is the main diagnostic tool, gastrointestinal endoscopy helps to assess oesophageal mucosal inflammation and its possible sequels. Gastric involvement is rarely recognized but it is frequent in case of systematic investigation as well as small intestinal involvement which may provide a lot of complications: malabsorption, pseudoobstruction, bacterial overgrowth. At colonic level, anorectal involvement is frequent and leads to fecal incontinence and rectal prolapse. Reynold's syndrome is a special case which associates systemic sclerosis with primary biliary cirrhosis. The symptomatic treatments must be systematic and improve the disease's overall prognosis.

Unlabelled: Previous experimental and epidemiological studies with few patients suggested that the presence of the cagA gene was a virulence factor for Helicobacter pylori (H. pylori)., Aim: To establish in this large epidemiological cohort study the relationship between the histological virulence of H. pylori infection and the cagA status of the bacteria., Methods: This prospective cohort study (6 month follow-up) was conducted on adult patients undergoing endoscopy for upper gastrointestinal symptoms. The cagA status of H. pylori-positive patients was established using the polymerase chain reaction (PCR) method on an antral biopsy. A score of histological virulence (inflammation, activity) was recorded on the basis of the Sydney system (on antral, angular and fundic biopsies). Eradication treatment given was not imposed and a clinical follow-up was performed at 3 and 6 months. H. pylori eradication was verified by a 13C urea breath test at 3 months., Results: Four hundred and twenty two centers recruited 652 patients (mean age: 51 +/- 15 years, 55% female). Upper GI endoscopy was abnormal in 80% of the patients of whom 68% had a gastritis aspect; 38% were infected by H. pylori, and among them 51% were cagA-positive. The histological virulence scores associated with the cagA-positive strains were significantly higher than those associated with the cagA-negative strains, globally (P = 0.0035), in the antrum (P = 0.0063), and in the angulus (P = 0.046), but not in the fundus (P = 0.05). The cagA status was correlated neither with the symptom severity at inclusion and at 6 months (P > 0.05), nor with the H. pylori eradication rate at 3 months (75% in cagA-positive and 70% in cagA-negative strains, P = 0.52)., Conclusion: This study on a large cohort of patients confirms the greater histological virulence of H. pylori cagA-positive strains. However, this virulence was not associated with more severe symptoms nor with an increase in resistance to H. pylori eradication treatment.

Unlabelled: The acid hypersensitive esophagus (AHE) is characterized by a normal esophageal acid exposure but a significant association between symptoms and reflux episodes. The natural history of AHE remains poorly known. We therefore conducted a follow-up study to compare the initial presentation and natural history of AHE and classical GERD. Quality of life (QOL) was also assessed., Patients and Methods: Two groups of patients referred to our laboratory for 24-hour pH-monitoring (between 1991 and 1996) were compared. Group 1 consisted of 127 consecutive patients with AHE. Group 2 consisted of 101 patients with GERD. All patients were invited by mail to fill-in two questionnaires, the first concerning clinical course and therapeutic needs and the second QOL (questionnaire Reflux-Qual). Finally 62% and 59% of group 1 and 2 respectively did respond to both questionnaires. The corresponding follow-up periods were 4.1 and 4.3 years, respectively., Results: The two groups did not differ at initial presentation with regard to age, sex, symptoms prevalence and severity of esophagitis (80% of group 1 and 75% of group 2 were endoscopy-negative patients). At an average follow-up of 4 years symptoms persisted in 80% and 71% of patients respectively. Seventy five per cent of patients in both groups continued to take antireflux drugs. QOL scores were similarly reduced in both groups (71 +/- 26 vs 70 +/- 27)., Conclusions: The initial presentation and clinical outcome of AHE and GERD are similar. QOL is notably impaired and the majority of patients continue to receive antireflux medications.

Aim: To assess the epidemiology and course of GORD, treatment demand, and factors predictive of GORD course in a 1-year study in patients with heartburn consulting general practitioners., Methods: A total of 984 patients with pyrosis were included by general practitioners. After the initial visit, they had follow up at 3, 6 and 12 months by phone contact., Results: Most patients (87%) had been suffering from heartburn for 4+/-1.5 years; upper GI endoscopy had been performed in 63% of patients. Patients evaluated the symptoms of the current episode as mild (6%), moderate (60%), or severe/incapacitating (34%). During the year of follow up, 12% of the patients were free of heartburn; the mean number of consultations with general practitioners and gastroenterologists was 5.1 and 0.5 respectively. At day 90, discomfort due to heartburn was absent in 4% of patients, slight in 51%, moderate in 32%, and severe in 6%. At day 360, predictive factors for discomfort were: discomfort related to heartburn on D90, the length of time the patients had been suffering from GORD, and the main reason for consultation on D1; patients for whom heartburn was not the main reason for consultation on D1 experienced a higher level of discomfort. The predictive factors for the extent of treatment demand over 12 months were: age, discomfort related to heartburn on D90, severity on D1, the frequency of episodes prior to the episode on D1 and the levels of stress and anxiety measured on D1., Conclusions: Epidemiologic characteristics of patients with heartburn consulting a general practitioner were different from these of the general population. Treatment demand depends both on severity of heartburn and level of stress and anxiety.

Unlabelled: Various options have been suggested to improve the functional results of abdominal rectopexy for rectal prolapse and to limit the risk of post-operative constipation., Objectives: In this prospective study, we evaluated the results of posterior abdominal rectopexy-sigmoidectomy to treat rectal prolapse syndrome in terms of morbidity, anatomic correction and bowel function. Patient benefits after surgery were assessed according to their pre-operative functional status., Patients and Methods: Twenty patients (14 females, mean age: 42 years) were treated for rectal prolapse with sutured abdominal rectopexy and sigmoidectomy., Results: (a) Thirteen patients had normal post-operative course. No anastomotic leak occurred. Mean hospital stay was 9.7 days. (b) Anatomical control was obtained in all cases for a mean follow-up of 31.2 months without recurrence. (c) Functional results: bowel movements per week remained unchanged pre- and post-operatively (18.6 +/- 33 vs 18.1 +/- 17). Constipation appeared or worsened in 2 patients (10%). Anal incontinence (n = 6-30%) never worsened post-operatively and improved in 3., Conclusions: This prospective clinical study confirmed the important functional disorders occurring in rectal prolapse syndrome. Rectopexy-sigmoidectomy is a valid option with stable mid-term results. Constipation was observed in 10% with no worsening of anal incontinence.

Objectives: The aim of this study was to determine the feasibility and tolerance of simultaneous assessment of the proximal gastric and lower esophageal sphincter tones in healthy humans, in fasting and fed conditions., Methods: Esophageal motility and lower esophageal sphincter tone were measured on two separate days in 7 healthy subjects. During one of these sessions, proximal gastric tone was simultaneously assessed with a balloon placed in the proximal stomach and connected to an electronic barostat. Motility was monitored 1 hour before and 4 hours after a liquid fat meal (400 mL/600 kcal). In four other healthy subjects, simultaneous assessment of proximal gastric and lower esophageal sphincter tones was performed after, suggestion of a 200 mL/200 kcal liquid meal., Results: Simultaneous use of gastric barostat and esophageal motility device was well tolerated in 10/11 healthy subjects. The presence of the barostat balloon did not significantly affect basal lower esophageal sphincter tone and the rate of transient lower esophageal sphincter relaxations. The important fall of lower esophageal sphincter basal tone after ingestion of the 400 mL/600 kcal meal did not allow to detect a post-prandial increase of transient lower esophageal sphincter; relaxations. After ingestion of the 200 mL/200 kcal meal, the incidence of transient lower esophageal sphincter relaxations increased (p < 0.02 vs. fasting). Maximal gastric relaxation was reached 15 min after meal, and appeared shorter (112 +/- 17 min vs. 167 +/- 24 min) and more pronounced (292 +/- 26 mL vs. 190 +/- 51 mL) than after the 400 mL meal, but differences were not statistically significant., Conclusions: Simultaneous assessment of proximal gastric and lower esophageal sphincter tone is feasible, after oval ingestion of a meal. Since the 400 mL meal induces in important inhibition of lower esophageal sphincter basal tone, the 200 mL meal seems more adequate for assessment of the transient lower esophageal sphincter relaxations.

Cholecystokinin (CCK) is a peptide released after feeding. Until now, CCK gene expression has been studied only on sacrified animals on mucosa scrapped off the duodenum. OBJECTIVE--The aim of this study was to assess CCK-mRNA detection on duodenal biopsy specimens in subjects undergoing gastrointestinal endoscopy. METHODS--Six biopsy specimens were taken from 6 healthy subjects, a) after a 12-h overnight fast and b) 6 or 12 h after a fat meal, and inducing a CCK release. CCK-mRNA was analyzed by Northern blot. RESULTS--Plasma CCK levels increased from basal levels of 0.5 +/- 0.1 pmole/L to 8.2 +/- 1.5 pmole/L 10 min after the meal. The fasting CCK-mRNA levels were 44.0 +/- 0.6% and the post-prandial levels increased to 74.0 +/- 6.0% at 6 h and decreased to 47.5 +/- 0.5% at 12 h. CONCLUSIONS--Detection of CCK gene expression in human duodenal biopsy specimens is feasible. Stimulation of CCK release after a meal is followed by an increase in CCK-mRNA in the duodenal mucosa.

We report the association of primary sclerosing cholangitis and systemic lupus erythematosus in a 39 year-old man. Six months after a diagnosis of primary sclerosing cholangitis was established, the patient was hospitalized for a pleural effusion and acute pericarditis. Emergency pericardiocentesis, was required due to sudden cardiac tamponnade. Plasmatic anti-DNA and anti-nuclear antibodies were present. Treatment by steroids greatly improved symptoms. This clinical association suggests that some immune disorders may be common to the two diseases.

Optimal surgical treatment for neuropathic severe anal incontinence is still controversial: the combination of pre-anal levator plication and post-anal repair (Parks) has been recently described. This non-randomized prospective study evaluated the results of pre- and post-anal repair for medically non-corrected neuropathic and traumatic anal incontinence. Ten female patients (mean age: 59) were operated by pre- and post-anal levatorplasty (total pelvic floor repair). Incontinence was scored clinically according to the Jorge and Wexner score (normal: 0, max.: 20) and with no rectal manometry, before and after surgery. Fourteen months after surgery (range: 9-18 months), anal continence for stools was achieved in 7 out of 10 patients: the patients clinical scores decreased from 15 (12-19) pre-operatively to 6 (1-18) post-operatively (p < 0.01) (4 for good results, 17 for the 3 failures). No manometric parameter was able to predict or explain postoperative functional results. Only anal canal length and maximal amplitude of anal contractions were significantly improved from 3.0 cm (2.0-4.0) to 3.5 cm (2.2-4.5), p < 0.05) for the former and from 54 to 69 cm H2O for the latter (p < 0.05). In this small series, pre- and post-anal levatorplasty effectively corrected severe neuropathic anal incontinence in the short-term, in 70% of cases. In our experience, this technique appears to be superior to post-anal repair, without increasing technical problems or morbidity.

Cutaneous electrogastrography is a non invasive method to study gastric electromechanical activity. The aim of this work was to determine the amplitude of electrogastrographic (EGG) activity a) during fasting, b) after a meal, c) following vagal stimulation by sham feeding, and to determine the relationship between gastric emptying of solids and EGG activity. EGG activity was recorded in eight healthy subjects in various experimental conditions, twice after sham feeding, twice after a meal, and once during the simultaneous scintigraphic assessment of gastric emptying of the solid component of a meal. During one of the sham feeding tests, subjects were intubated and acid secretion was measured. The EGG signal amplitude was continuously monitored and an intercorrelation function (IF) was calculated using the Fast Fourier Transforms of electrical activity recorded by 2 cutaneous electrodes placed on the epigastric area. During fasting, IF was usually of low amplitude with occasional short increases of amplitude. Sham feeding without intubation rarely induced an early and brief increase in IF amplitude (2 of 8 subjects). Sham feeding-induced acid secretion was negatively correlated with IF amplitude (r = 0.78, P = 0.02) suggesting a motor inhibition associated with vagally stimulated acid secretion. When given orally, meals induced an increase in IF amplitude, but there was major intra- and interindividual variations. There was no significant correlation between the IF increase and the half emptying time for solids (r = 0.62, P = 0.10). This study shows that the high variability of EGG activity during fasting considerably hampers the analysis of changes induced by any stimulus.(ABSTRACT TRUNCATED AT 250 WORDS)

Electronic barostat allows to measure volume variations of an intragastric air-filled bag maintained at a low constant pressure level, reflecting gastric tone variations. The aims of the present study were to record physiologic variations of gastric tone in humans a) in the fasting state, with and without different stimuli, and b) in the fed state. The bag was placed into the proximal stomach of healthy subjects and connected to the barostat. Volume variations were recorded in the basal state and in response to a) a balanced liquid meal (200 mL, 200 kcal, n = 8), b) sham feeding and sham feeding after cholinergic blockade (atropine 10 micrograms.kg-1 IV, n = 8), and c) graded antroduodenal distensions performed with a tandem balloon (n = 6). During fasting, the proximal stomach presented both a tonic and an intermittent phasic motor pattern (volume waves of 1.2 min maximal period). Meal ingestion was rapidly followed by a dramatic fall in proximal gastric tone (> 200% of preprandial volume within 11 +/- 5 min). After a meal, the intragastric bag returned to preprandial volume after 92 +/- 12 min (ranges: 75-110). Proximal gastric tone was not significantly modified by atropine or by sham feeding alone or after atropine. Antroduodenal distensions reproducibly induced volume dependent relaxations (r = 0.98, P < 0.001) with inhibition of the phasic activity. These results confirm the value of electronic barostat for the measurement of proximal gastric tone, and show that postprandial relaxation is not masked by a low volume liquid meal. Sham feeding does not appear to be an adequate stimulus to induce gastric relaxation. This suggests that vagal fibers involved in gastric relaxation are not the same (or have a higher stimulation threshold) than fibers involved in cephalic phase of gastric secretion.

The hydrogen breath test after a lactulose oral load in the fasting period is currently used to measure mouth to cecum transit time (MCTT). However, the reproducibility of this test is poor, and normal values are very scattered. The aim of the study was to determine the reproducibility of hydrogen breath test for MCTT measurement and hydrogen production after administration of 2 disaccharides: lactulose and lactitol ingested in the fasting state and postprandial period. Twelve healthy volunteers (6 men and 6 women; mean age = 34.6 +/- 9.6 years) were studied eight times in a random order, each disaccharide being studied twice in the fasting state and twice in the postprandial period. In the later, lactulose or lactitol was ingested 30 min after a liquid meal completely absorbed (400 kcal; glucide: 55 p. 100, lipid: 30 p. 100, protein: 15 p. 100; 400 ml of Inkopeptide). The MCTT was significantly increased with both disaccharides in the postprandial period as compared with the fasting state (P less than 0.0001). There was nos significant correlation between the 2 measurements of the MCTT in the fasting state, in contrast, the 2 measurements of the MCTT were closely related in the fed state (r = 0.62, P less than 0.05, et r = 0.79, P less than 0.003 for lactulose and lactitol respectively). During both periods no significant difference was found in the MCTT between lactulose and lactitol. As well, hydrogen production did not differ between the 2 disaccharides, but was significantly increased in the postprandial period, and in non methane producers.(ABSTRACT TRUNCATED AT 250 WORDS)

Although the pathogenic role of gastroesophageal reflux in Barrett's esophagus (BE) is now widely accepted, the pattern of pH profile in the esophagus of patients with BE is not well documented. The aim of this study was to assess the severity and "extent" of acid exposure in patients with BE using an automated single or two-channel 24-hour pH monitoring system. Eighteen patients with histologically proven BE were compared with 3 other groups: a) 100 patients with clinical symptoms and pHmetrically proven acid reflux divided in 2 sub-groups: 38 patients without esophagitis at endoscopy, and 62 patients with esophagitis (Savary-Miller classification; grade I: n = 24, grade II: n = 27, grade III: n = 8, grade IV: n = 3) and b) 9 healthy volunteers. In 17 patients with BE, and in 14 patients with reflux and healthy volunteers, 2 electrodes were placed 5 (electrode E1) and 10 cm (electrode E2) above the lower esophageal sphincter. In the other patients, pH was monitored using a single pH electrode (E1) only. The mucosal acid exposure at E1 (percentage of time below pH 4 on total period, day and night), the number of reflux episodes longer than 5 min were significantly higher in the BE group when compared with the other groups. The number of patients with abnormal acid exposure at E2 was significantly higher (P less than 0.01) in the BE group (15/17 cases) than in the reflux group (5/14 cases). The mean duration of acid reflux was significantly longer in BE than in other groups at both recording sites.(ABSTRACT TRUNCATED AT 250 WORDS)

Rectocele is a frequent rectal static disorder. Its usual clinical manifestation is a distressing outlet obstruction. Surgical treatments actually proposed are based on a trans-anal approach. Perineal approach has specific interests as shown on a consecutive series of 20 patients operated on between January 90 and January 92. The surgical modalities were, after mobilization of the recto-vaginal wall, careful concentric folding of the rectocele followed by suturing the rectal fascia and pre-anal levatorplasty without associated colpectomy. Results (mean follow-up: 15 months) showed: 1) anatomic correction obtained in 18 cases, without local complications, but one dyspareunia, 2) restoration of normal rectal evacuation in 16 cases. The 4 functional failures were observed in patients with associated anorectal disorders (anismus, colon inertia).

A scintigraphic technique allowing combined measurements of gastric emptying, small intestinal transit time and colonic filling was developed and its reproducibility assessed in 8 healthy volunteers. Each subject underwent four tests: a) two were performed in the fasting state (99mTc labelled water, added to lactulose), b) two in the postprandial state (balanced meal, 1,750 kJ, included pellets labelled with 111In, the gut transit of which being nearly the same as dietary fibers). Intestinal transit was modeled using linear operators (expressed as a convolution product). In fasting state (lactulose), orocecal transit time of water was 109 +/- 60 min and 89 +/- 36 min (m +/- DS) for the first and second tests, respectively. In the postprandial state, values were 297 +/- 37 min and 293 +/- 43 min respectively for the pellets. Small bowel transit times were 135 +/- 70 and 103 +/- 40 min respectively in fasting state for water, and 209 +/- 47 and 209 +/- 29 min respectively in postprandial state for the pellets. Determination of residual variance showed that reproducibility of the test was better in the postprandial state than in the fasting state. Water orocecal transit times measured using this technique and lactulose orocecal transit time measured using hydrogen breath test were strongly correlated (r = 0.98, n = 12, P less than 0.01). This isotopic method provides a reproducible assessment of gastric emptying, small bowel transit, and colonic filling and could represent a reliable and non invasive tool for further physiological and pharmacological studies.