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Query: UMLS:C0010200 (cough)
 23,843 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Gastroesophageal reflux disease (GERD) may cause, trigger or exacerbate many pulmonary diseases. The physiological link between GERD and pulmonary disease has been extensively studied in chronic cough and asthma. A primary care physician often encounters patients with extra esophageal manifestations of GERD in the absence of heartburn. Patients may present with symptoms involving the pulmonary system; noncardiac chest pain; and ear, nose and throat disorders. Local irritation in the esophagus can cause symptoms that vary from indigestion, like chest discomfort and abdominal pain, to coughing and wheezing. If the gastric acid reaches the back of the throat, it may cause a bitter taste in the mouth and/or aspiration of the gastric acid into the lungs. The acid can cause throat irritation, postnasal drip and hoarseness, as well as recurrent cough, chest congestion and lung inflammation leading to asthma and/or bronchitis/ pneumonia. This clinical review examines the potential pathophysiological mechanisms of pulmonary manifestations of GERD. It also reviews relevant clinical information concerning GERD-related chronic cough and asthma. Finally, a potential management strategy for GERD in pulmonary patients is discussed.
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PMID:Pulmonary manifestations of gastroesophageal reflux disease. 1964 41

There are several available diagnostic options to evaluate patients with suspected gastroesophageal reflux, whether acid, weakly acid, or nonacid. The appropriate application of these technologies is the subject of much discussion among experts. Thoughtful use of reflux monitoring is of great benefit in the evaluation of patients with endoscopy-negative disease reflux symptoms that are resistant, recurrent, or refractory to standard or double-dose antisecretory therapy; patients with distinct, atypical symptoms such as cough, laryngitis, chest pain, globus, or regurgitation in whom heartburn is infrequent or absent; patients who are seeking surgical or endoscopic corrective procedures to treat their symptoms; and those with recurrence of symptoms after undergoing surgical procedures. Reflux monitoring may be useful in avoiding an incorrect diagnosis of gastroesophageal reflux disease (GERD) and in management of patients with Barrett's esophagus. This article will review the current clinical applications of reflux monitoring in patients with GERD.
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PMID:Reflux monitoring. 1966 26

For many years patients with chronic cough have been investigated in an attempt to diagnose the cause of the cough. Here I suggest that the overwhelming majority of patients with chronic cough have a single diagnosis: cough hypersensitivity syndrome. This is demonstrated by the homogeneous nature of the clinical history and investigational results of patients attending cough clinics. The hypersensitivity facet of the syndrome is demonstrated by objective testing with capsaicin and other protussive agents. Within the cough hypersensitivity syndrome there are different phenotypes. Those patients with a predominantly Th2-type immune response will develop eosinophilic inflammation and either cough-variant asthma or eosinophilic bronchitis. Those with predominantly heartburn symptoms will have a phenotype that reflects GERD and cough. However, the similarities between the different phenotypes far outweigh differences in a unifying diagnosis of the cough hypersensitivity syndrome, providing a more rational understanding of chronic cough.
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PMID:The cough hypersensitivity syndrome: a novel paradigm for understanding cough. 1980 53

Gastroesophageal reflux is a physiological phenomenon but becomes pathological if troublesome symptoms and/or complications occur. Gastroesophageal reflux disease (GERD) has different phenotypes ranging from non-erosive reflux disease (NERD), through reflux esophagitis and Barrett's esophagus, and can present with either typical symptoms such as regurgitation and heartburn, or extra-esophageal symptoms such as cough and laryngitis. In the diagnosis of GERD endoscopy, empirical PPI test, and pH impedance testing all have their own position. Although proton pump inhibitors (PPIs) are very effective in the treatment of esophagitis, a significant proportion of patients have persistent symptoms even during high dosing of PPIs. Therefore, insight into the multifactorial pathophysiology of GERD is needed to develop new anti-reflux therapies. The predominant mechanism underlying reflux is the transient lower esophageal sphincter relaxation (TLESR). Hiatal hernia, impaired esophageal clearance and reduced lower esophageal sphincter pressure play a significant role in patients with moderate to severe reflux disease. Refluxate containing acid, pepsin and bile can cause epithelial injury when epithelial barrier of the esophagus fails to defend. In the majority of patients there is histopathological evidence of epithelial injury, even with NERD where there are more dilated intercellular spaces. The perception of heartburn can be enhanced due to visceral hypersensitivity, leading to more and more severe symptoms. Anti-reflux surgery is as effective as PPI therapy, but has higher morbidity and results decline in the long term. Therefore, new pharmacological, endoscopic and surgical interventions are being developed for these patients.
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PMID:Pathophysiology and management of gastroesophageal reflux disease. 1982 85

Chronic cough can be the sole presenting symptom for patients with obstructive sleep apnoea. We investigated the prevalence, severity and factors associated with chronic cough in patients with sleep-disordered breathing (SDB). We invited 108 consecutive patients who had been referred for evaluation of SDB to complete a comprehensive questionnaire on respiratory and sleep health, which included the Leicester Cough Questionnaire (cough specific quality of life; LCQ), Epworth Sleepiness Scale (ESS) and the Mayo Clinic gastro-oesophageal questionnaire. Chronic cough was defined as cough for a duration of >2 months. 33% of patients with SDB reported a chronic cough. Patients with a chronic cough had impaired cough related-quality of life affecting all health domains (mean+/-sem LCQ score 17.7+/-0.7; normal = 21). Patients with SDB and chronic cough were predominantly females (61% versus 17%; p<0.001) and reported more nocturnal heartburn (28% versus 5%; p = 0.03) and rhinitis (44% versus 14%; p = 0.02) compared to those without SDB. There were no significant differences in ESS, respiratory disturbance index, body mass index, or symptoms of breathlessness, wheeze, snoring, dry mouth and choking between those with cough and those without. Chronic cough is prevalent in patients with SDB and is associated with female sex, symptoms of nocturnal heartburn and rhinitis. Further studies are required to investigate the impact of continuous positive airway pressure therapy on cough associated with SDB to explore the mechanism of this association.
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PMID:Chronic cough in patients with sleep-disordered breathing. 2012 46

Reflux is a significant contributor to cough in otolaryngology practice; cough is just one marker of its many negative effects on the upper aerodigestive tract. Reflux causes cough both by direct irritation/inflammation and by increasing sensitivities to other noxious agents. Detailed and diligent clinical evaluation, including laryngoscopy, is useful in advancing the working diagnosis of reflux-associated cough. Supplemental testing, including impedance monitoring of esophageal refluxate, can be important to evaluate for both acidic and nonacidic reflux exposure. The mainstay of treatment continues to be dietary and other lifestyle interventions and drug therapy. Although proton-pump inhibitor therapy is effective in most patients, especially those with acid reflux disease, prokinetic therapy is probably very important with those with combined acid and nonacid disease and those with pure nonacid disease. It is likely that failure to improve can be due to behavioral and drug compliance issues. Antireflux surgery can yield long-lasting positive outcomes in carefully selected patients despite the lower efficacy of treatment for primary upper aerodigestive tract symptoms (cough, hoarseness, sore throat) compared with heartburn and regurgitation.
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PMID:Reflux and cough. 2017 60

Chronic cough is one of the extra-oesophageal manifestations of gastrooesophageal reflux disease (GORD). It is presumed to occur either directly by microaspiration of acidic gastric contents into the airway or indirectly by a reflex triggered by contact of acidic refluxates with the oesophageal epithelium in GORD. How contact of the oesophageal epithelium with acidic refluxates promotes sensitization for chronic cough is unknown, but like heartburn, which is a necessary accompaniment, it requires acid activation of nociceptors within the oesophageal mucosa. Dilated intercellular spaces within the oesophageal epithelium, a reflection of an increase in paracellular permeability, is a histopathologic feature of both erosive and non-erosive forms of GORD. Since it correlates with the symptom of heartburn, it is hypothesized herein that the increase in paracellular permeability to acid reflected by dilated intercellular spaces in oesophageal epithelium also serves as mediator of the signals that produce the reflex-induced sensitization for cough--a sensitization that can occur centrally within the medullary Nucleus Tractus Solitarius or peripherally within the tracheobronchial tree.
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PMID:Dilated intercellular spaces and chronic cough as an extra-oesophageal manifestation of gastrooesophageal reflux disease. 2097 May 14

Our understanding of the relationship between gastro-oesophageal reflux and respiratory disease has recently undergone important changes. The previous paradigm of airway reflux as synonymous with the classic gastro-oesophageal reflux disease (GORD) causing heartburn has been overturned. Numerous epidemiological studies have shown a highly significant association of the acid, liquid, and gaseous reflux of GORD with conditions such as laryngeal diseases, chronic rhinosinusitis, treatment resistant asthma, COPD and even idiopathic pulmonary fibrosis. However, it has become clear from studies on cough hypersensitivity syndrome that much reflux of importance in the airways has been missed, since it is either non- or weakly acid and gaseous in composition. The evidence for such a relationship relies on the clinical history pointing to symptom associations with known precipitants of reflux. The tools for the diagnosis of extra-oesophageal reflux, in contrast to the oesophageal reflux of GORD, lack sensitivity and reproducibility. Unfortunately, methodology for detecting such reflux is only just becoming available and much additional work is required to properly delineate its role.
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PMID:Relationship between gastro-oesophageal reflux and airway diseases: the airway reflux paradigm. 2145 4

Systemic sclerosis (SSc) is a chronic autoimmune connective tissue disease. Of the numerous organ manifestations, involvement of the upper and lower gastrointestinal tract (GIT) appears to be the most frequent with regard to the clinical symptoms. However, as the frequency and clinical relevance of GI involvement in patients with SSc are not known in detail, the German network of the systemic sclerosis (DNSS) has developed a detailed questionnaire to evaluate the extent and profile of gastrointestinal involvement in SSc patients. The multi-symptom questionnaire was used at baseline and after 1 year in registered patients of the DNSS. In addition, the results were compared with gastrointestinal disorders in patients with SSc and other rheumatic diseases, as well as with the medical history of the patients. In total, 90 patients were included in the study. The results of the study show that in reality, a much higher (nearly all) percentage of (98,9%) patients than expected suffer from GI-symptoms, regardless of the stage of their disease. Of these, meteorism (87,8%) was the most common followed by coughing/sore voice (77,8%), heartburn (daytime 68,9%, nighttime 53,3%), diarrhea (67,8%), stomach ache (68,9%) and nausea (61,1%). Although SSc patients were treated according to the respective recommendations, only limited improvements with regard to GI-symptoms could be achieved after 1 year of follow-up. In addition, the study revealed that the multi-symptom questionnaire is a useful tool to contribute to identify the gastrointestinal sequelae in systemic sclerosis.
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PMID:Profile of gastrointestinal involvement in patients with systemic sclerosis. 2176 90

Extraesophageal (EE) symptoms such as cough and throat clearing are common in patients referred for reflux testing, but are less commonly associated with gastroesophageal reflux disease (GERD). Patients with reflux associated EE symptoms often lack typical GERD symptoms of heartburn and regurgitation. Our aim was to compare the frequency of proximal esophageal reflux between esophageal (typical) symptoms and EE (atypical) symptoms. Combined multichannel intraluminal impedance-pH (MII-pH) tracings were blinded by an investigator so that symptom markers were relabeled with a number without disclosure of symptom type. We selected 40 patients with at least five reflux-related symptom events for one of four symptoms (heartburn, regurgitation, cough, or throat clearing). A blinded investigator analyzed all 200 reflux episodes, reporting the proximal esophageal extent of the reflux for all symptoms. The percentage of symptom-related reflux extending proximally to 17 cm above the LES was similar among all four symptom types. At least 50% of all symptoms were associated with proximal esophageal reflux to 17 cm, with regurgitation having the highest frequency at 60%. Our data indicate that EE symptoms are not more frequently associated with proximal esophageal reflux than typical esophageal symptoms.
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PMID:Extraesophageal gastroesophageal reflux disease (GERD) symptoms are not more frequently associated with proximal esophageal reflux than typical GERD symptoms. 2224 31


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