1
|
Liu J, Yin M, Lv C, Wang W, Huang Y, Tian J, Wang B, Song G, Yu Y. Post-reflux swallow-induced peristaltic wave index and mean nocturnal baseline impedance predict proton pump inhibitor response in patients with reflux hypersensitivity. J Gastroenterol Hepatol 2024. [PMID: 39118430 DOI: 10.1111/jgh.16718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 07/14/2024] [Accepted: 07/30/2024] [Indexed: 08/10/2024]
Abstract
BACKGROUND AND AIM Post-reflux swallow-induced peristaltic wave (PSPW) index and mean nocturnal baseline impedance (MNBI) have been shown to influence proton pump inhibitor (PPI) response in GERD patients. However, currently, little data concerning these variables in patients with reflux hypersensitivity (RH) are available. In this study, we aimed to evaluate, in RH patients, the prevalence of PPI responders and nonresponders and investigate the predictive value of impedance-pH variables, including PSPW and MNBI, on responses to PPI. METHODS A total of 108 RH patients who met ROME IV criteria were prospectively recruited from June 2018 to December 2022. The prevalence of PPI responders/nonresponders was calculated, and impedance-pH variables were compared between the response and nonresponse groups. Multiple logistic regression was used to investigate predictors for PPI response. RESULTS Among 108 patients with RH, 60 patients (55.56%) were the PPI responders, and 48 (44.44%) were the nonresponders. Compared with the nonresponders, the PPI responders had a lower PSPW index (47.05 ± 4.43 vs 51.33 ± 3.50, P = 0.004) and a decreased value of MNBI (1866.68 ± 390.62 vs 2181.14 ± 338.42, P = 0.017). Multivariate logistic regression revealed that only the pathologic PSPW index (OR: 2.064) and MNBI (OR: 1.800) significantly influenced PPI response. CONCLUSIONS Nearly half of RH patients were PPI nonresponders. Impedance-pH monitoring was more valuable than pH-only monitoring in associating PPI response to reflux in RH patients owing to the appraisal of the PSPW index and MNBI.
Collapse
Affiliation(s)
- Jie Liu
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Mengqing Yin
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Chaolan Lv
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Wei Wang
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Yizhou Huang
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Jiashuang Tian
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Bo Wang
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Gengqing Song
- Division of Gastroenterology and Hepatology, MetroHealth Medical Center, Case Western Reserve University, Cleveland, Ohio, USA
| | - Yue Yu
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| |
Collapse
|
2
|
Pop RS, Pop D, Chiperi LE, Nechita VI, Man SC, Dumitrașcu DL. Utility of the Post-Reflux Swallow-Induced Peristaltic Wave Index and Mean Nocturnal Baseline Impedance for the Diagnosis of Gastroesophageal Reflux Disease Phenotypes in Children. CHILDREN (BASEL, SWITZERLAND) 2024; 11:773. [PMID: 39062223 PMCID: PMC11275132 DOI: 10.3390/children11070773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/19/2024] [Accepted: 06/25/2024] [Indexed: 07/28/2024]
Abstract
(1) Objectives: Assessment of novel impedance parameters such as the post-reflux swallow-induced peristaltic wave (PSPW) index and mean nocturnal baseline impedance (MNBI) have been proposed to enhance the accuracy of gastroesophageal reflux disease (GERD) diagnosis. We aimed to evaluate the clinical value of MNBI and the PSPW index in discerning different phenotypes of GERD in children. (2) Methods: We conducted a prospective, observational study that included 49 children aged 5-18 years, referred for MII-pH monitoring due to negative endoscopy and persisting gastroesophageal reflux symptoms despite acid-suppressant treatment. The PSPW index and MNBI were assessed along with conventional metrics. (3) Results: Using a receiver operating characteristic (ROC) curve analysis, MNBI (AUC 0.864) and the PSPW index (AUC 0.83) had very good performance in differentiating between non-erosive reflux disease (NERD) and functional phenotypes. The PSPW index (AUC 0.87) discriminated better between functional heartburn (FH) and reflux hypersensitivity (RH) compared to the MNBI (AUC 0.712). A PSPW cut-off value of 65% provided a sensitivity of 76.9% and a specificity of 90% in distinguishing FH and RH. The PSPW index (AUC 0.87) proved to have better performance than the MNBI (AUC 0.802) in differentiating between FH and non-FH patients. MNBI diagnosed FH with a sensitivity of 84% and a specificity of 80.6% at a cut-off value of 2563 Ω. (4) Conclusions: The PSPW index and MNBI are useful to distinguish between GERD phenotypes in pediatric patients.
Collapse
Affiliation(s)
- Radu Samuel Pop
- 3rd Department of Pediatrics, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400217 Cluj-Napoca, Romania; (D.P.); (S.C.M.)
| | - Daniela Pop
- 3rd Department of Pediatrics, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400217 Cluj-Napoca, Romania; (D.P.); (S.C.M.)
- 3rd Pediatric Clinic, Clinical Emergency Hospital for Children, 400217 Cluj-Napoca, Romania
| | - Lăcrămioara Eliza Chiperi
- Department of Pediatrics, George Emil Palade University of Medicine, Pharmacy, Sciences and Technology, 540136 Târgu Mureș, Romania;
| | - Vlad-Ionuț Nechita
- Department of Medical Informatics and Biostatistics, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania;
| | - Sorin Claudiu Man
- 3rd Department of Pediatrics, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400217 Cluj-Napoca, Romania; (D.P.); (S.C.M.)
- 3rd Pediatric Clinic, Clinical Emergency Hospital for Children, 400217 Cluj-Napoca, Romania
| | - Dan Lucian Dumitrașcu
- 2nd Department of Internal Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania;
| |
Collapse
|
3
|
Angelica B, Tippett M, Lim A, Wong S, Kuo P. Utility of mean nocturnal baseline impedance and post-reflux swallow-induced peristaltic wave index in clinical pH-impedance reflux study. Intern Med J 2024. [PMID: 38530066 DOI: 10.1111/imj.16379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 02/26/2024] [Indexed: 03/27/2024]
Abstract
BACKGROUND AND AIMS Analysis of mean nocturnal baseline impedance (MNBI) and post-reflux swallow-induced peristaltic wave index (PSPWi) have been proposed to increase the diagnostic yield of pH-impedance studies in reflux disease. However, routine use of these indices in clinical studies is yet to be established, particularly with PSPWi, which requires laborious manual analysis. Our study aimed to assess the utility of MNBI and PSPWi and their potential for future incorporation into clinical practice. METHODS pH-impedance recordings from consecutive patients referred to the Motility Laboratory at Royal Adelaide Hospital for evaluation of gastro-oesophageal reflux disease (GORD) were prospectively collected and manually analysed. Baseline demographic characteristics, symptoms, acid exposure time (AET), number of reflux episodes, and MNBI and PSPWi were collected. RESULTS Eighty-nine patients were included in the study (age 50 ± 17 years, 35 males). MNBI and PSPWi inversely correlated with AET (R = -0.678, P < 0.0001 and R = -0.460, P < 0.0001 respectively) and with reflux episodes (R = -0.391, P = 0.0002 and R = -0.305, P = 0.0037 respectively). In patients with a negative pH study, but with typical reflux symptoms, 4/30 (13%) had pathologic MNBI and PSPWi. There was a positive correlation between MNBI and PSPWi values (R = 0.525, P < 0.0001). Performing analysis of PSPWi was substantially more laborious than MNBI. CONCLUSION MNBI and PSPWi are both useful adjuncts in the diagnosis of reflux disease, although in our cohort MNBI showed stronger correlation with AET with less time to analyse. The role of these indices remains to be further explored, particularly in patients with inconclusive AET and in those with positive compared to negative symptom association.
Collapse
Affiliation(s)
- Bianca Angelica
- Motility Laboratory, Department of Gastroenterology and Hepatology, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Marcus Tippett
- Motility Laboratory, Department of Gastroenterology and Hepatology, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Amanda Lim
- Motility Laboratory, Department of Gastroenterology and Hepatology, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Stephanie Wong
- Motility Laboratory, Department of Gastroenterology and Hepatology, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Paul Kuo
- Motility Laboratory, Department of Gastroenterology and Hepatology, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| |
Collapse
|
4
|
Sararu ER, Peagu R, Fierbinteanu-Braticevici C. Association between Mean Nocturnal Baseline Impedance (MNBI) and Post-Reflux Swallow-Induced Peristaltic Wave Index (PSPW) in GERD Patients. Diagnostics (Basel) 2023; 13:3602. [PMID: 38132186 PMCID: PMC10742549 DOI: 10.3390/diagnostics13243602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/01/2023] [Accepted: 12/03/2023] [Indexed: 12/23/2023] Open
Abstract
Gastroesophageal reflux disease (GERD) is one of the most common gastrointestinal disorders in the world. Two parameters, mean nocturnal baseline impedance (MNBI) and post-reflux swallow-induced peristaltic wave index (PSPW), have been recently proposed to help differentiate GERD phenotypes. Our study aimed to assess whether there is any correlation between the two parameters, while also taking a look at their ability to distinguish between GERD phenotypes. We recruited 81 patients who were divided into 4 groups based on their GERD phenotype: erosive reflux disease (ERD), non-erosive reflux disease (NERD), reflux hypersensitivity (RH), and functional heartburn (FH). Both MNBI (AUROC 0.855) and PSPW (AUROC 0.835) had very good performances in separating ERD patients from non-ERD patients. PSPW (AUROC 0.784) was superior to MNBI (AUROC 0.703) in distinguishing NERD patients from patients with RH or FH. The PSPW index (AUROC 0.762) was more effective than MNBI (AUROC 0.668) in separating RH from FH. We found that PSPW and MNBI have a strong statistical correlation (Pearson correlation coefficient, r = 0.722, p < 0.001). Furthermore, PSPW predicted pathological MNBI (<2292 Ω) with good performance (AUROC 0.807). MNBI and PSPW are useful in distinguishing GERD phenotypes, with a strong correlation between the two parameters.
Collapse
Affiliation(s)
- Elena Roxana Sararu
- Internal Medicine II and Gastroenterology Department, Emergency University Hospital Bucharest, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Razvan Peagu
- Internal Medicine Department, Sanador Hospital, 010991 Bucharest, Romania
| | - Carmen Fierbinteanu-Braticevici
- Internal Medicine II and Gastroenterology Department, Emergency University Hospital Bucharest, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
| |
Collapse
|
5
|
Kindt S, Surmont M. Manual censoring of impedance tracings by the Wingate consensus reduces the number of impedance episodes, impacting on reflux categorization. Neurogastroenterol Motil 2023; 35:e14683. [PMID: 37793130 DOI: 10.1111/nmo.14683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/14/2023] [Accepted: 09/19/2023] [Indexed: 10/06/2023]
Abstract
BACKGROUND The Lyon consensus classifies the evidence of gastroesophageal reflux (GERD) based on endoscopic features and results of pH/impedance monitoring (pH-MII) including the post-reflux swallow-induced peristaltic wave index (PSPWI) and mean nocturnal baseline impedance (MNBI). The Wingate consensus established criteria to reduce inter-reviewer variability when assessing reflux episodes and PSPWI by impedance. This study aims to assess the influence of the Wingate criteria on the different pH-MII parameters obtained by automated analysis. METHODS Thirty consecutive pH-MII off PPI were reviewed according to Wingate criteria. Number of impedance episodes and PSPWI were compared before and after censoring from automatic analysis. Reflux categorization according to Lyon consensus between censored and uncensored data was compared. Pearson correlations between impedance parameters and censored episodes were calculated. KEY RESULTS Censoring the tracings significantly reduced the number of reflux episodes (66 [42-90.25] vs. 44.5 [21.5-61.5], p = 0.0105). Reasons for censoring were as follows: 1/ anterograde episode: 9.5 [6-13], 2/ impedance drop <50%: 1 [0-3], 3/ duration <4 s: 1 [0-2], 4/ <2 distal channels: 2.5 [1-4], and 5/ artifacts: 2 [1-5]. Censored episodes were in majority non-acid (16.5 [13-26.5] vs. 2 [0-4], p < 0.00001). Censoring altered the categorization of impedance episodes (<40 episodes, 6 vs. 13 for resp. uncensored vs. censored tracings, 40-80 episodes: 13 vs. 13, and >80 episodes: 11 vs. 4, p = 0.0264), but not the symptom index, the symptom association probability, or the categorization according to the Lyon consensus. Nevertheless, individual tracings were affected. The percentage of censored episodes was inversely correlated with the number of acidic impedance episodes (r = -0.62, p = 0.0002). CONCLUSION AND INFERENCES Manual interpretation of impedance tracings based on the Wingate consensus reduces the number of impedance episodes, impacting on reflux categorization. Acidic reflux episodes are less likely to be censored, harboring a potential at improving automatic pH-MII analysis.
Collapse
Affiliation(s)
- Sébastien Kindt
- Department of Gastroenterology and Hepatology, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Magali Surmont
- Department of Gastroenterology and Hepatology, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| |
Collapse
|
6
|
Ribolsi M, Savarino E. Towards a better diagnosis of gastro esophageal reflux disease. Expert Rev Gastroenterol Hepatol 2023; 17:999-1010. [PMID: 37800858 DOI: 10.1080/17474124.2023.2267435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 10/03/2023] [Indexed: 10/07/2023]
Abstract
INTRODUCTION GERD is a common disorder and is characterized by the presence of typical or atypical symptoms. In GERD patients, the presence of mucosal alterations in endoscopy is detected in up to 30% of individuals. The clinical presentation of GERD patients may be complex and their management is challenging, due to the heterogeneous clinical presentation. The present review has been performed searching all relevant articles in this field, over the past years, using PubMed database. AREAS COVERED The diagnosis and management of GERD have been significantly improved in the last years due to the increasing availability of reflux monitoring techniques and the implementation of new procedures in the therapeutic armamentarium. Beside traditional impedance-pH variables, new metrics have been developed, increasing the diagnostic yield of reflux monitoring and better predicting the treatment response. Traditional pharmacological treatments include acid-suppressive-therapy and/or anti-acid. On the other hand, surgical treatment and, more recently, endoscopic procedures represent a promising field in the therapeutic approach. EXPERT OPINION Diagnosis and treatment of GERD still represent a challenging area. However, we believe that an accurate upfront evaluation is, nowadays, necessary in addressing patients with GERD to a more accurate diagnosis as well as to the best treatment options.
Collapse
Affiliation(s)
- Mentore Ribolsi
- Unit of Gastroenterology and Digestive Endoscopy, Campus Bio Medico University, Rome, Italy
| | - Edoardo Savarino
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padova, Italy
| |
Collapse
|
7
|
Lien HC, Lee PH, Wang CC. Diagnosis of Laryngopharyngeal Reflux: Past, Present, and Future-A Mini-Review. Diagnostics (Basel) 2023; 13:diagnostics13091643. [PMID: 37175034 PMCID: PMC10177910 DOI: 10.3390/diagnostics13091643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/19/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023] Open
Abstract
Laryngopharyngeal reflux (LPR) is a variant of gastroesophageal reflux disease (GERD) in which gastric refluxate irritates the lining of the aerodigestive tract and causes troublesome airway symptoms or complications. LPR is a prevalent disease that creates a significant socioeconomic burden due to its negative impact on quality of life, tremendous medical expense, and possible cancer risk. Although treatment modalities are similar between LPR and GERD, the diagnosis of LPR is more challenging than GERD due to its non-specific symptoms/signs. Due to the lack of pathognomonic features of endoscopy, mounting evidence focused on physiological diagnostic testing. Two decades ago, a dual pH probe was considered the gold standard for detecting pharyngeal acidic reflux episodes. Despite an association with LPR, the dual pH was unable to predict the treatment response in clinical practice, presumably due to frequently encountered artifacts. Currently, hypopharygneal multichannel intraluminal impedance-pH catheters incorporating two trans-upper esophageal sphincter impedance sensors enable to differentiate pharyngeal refluxes from swallows. The validation of pharyngeal acid reflux episodes that are relevant to anti-reflux treatment is, therefore, crucial. Given no diagnostic gold standard of LPR, this review article aimed to discuss the evolution of objective diagnostic testing and its predictive role of treatment response.
Collapse
Affiliation(s)
- Han-Chung Lien
- Division of Gastroenterology, Taichung Veterans General Hospital, Taichung 407219, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 11217, Taiwan
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung 402, Taiwan
| | - Ping-Huan Lee
- Division of Gastroenterology, Taichung Veterans General Hospital, Taichung 407219, Taiwan
| | - Chen-Chi Wang
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 11217, Taiwan
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung 402, Taiwan
- Department of Otolaryngology, Taichung Veterans General Hospital, Taichung 407219, Taiwan
| |
Collapse
|
8
|
Li Y, Wang L, Yang D, Zhang Z, Sun X, Geng X, Lin J, Duan Z. Esophageal chemical clearance and mucosa integrity values in refractory gastroesophageal reflux disease patients with different esophageal dynamics. Scand J Gastroenterol 2023; 58:322-330. [PMID: 36259257 DOI: 10.1080/00365521.2022.2132534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVES Esophageal post-reflux swallow-induced peristaltic wave index (PSPWI) and mean nocturnal baseline impedance (MNBI), novel impedance-based markers of reflux burden, are associated with esophageal dynamics. We aim to investigate the characteristics of PSPWI and MNBI in Chinese refractory gastroesophageal reflux disease (RGERD) patients with different esophageal dynamic changes. MATERIALS AND METHODS 201 RGERD and 76 functional heartburn patients, undergone off-PPI endoscopy, esophageal manometry and impedance-pH monitoring, were included. Comparisons of conventional and novel impedance-pH metrics were made among different esophageal dynamics groups. Receiver operating-characteristic analyses were utilized to evaluate the diagnostic efficacy of PSPWI and MNBI in differentiating abnormal esophageal dynamics. Correlations were used to investigate their associated factors. RESULTS PSPWI and MNBI of RGERD with esophagogastric junction (EGJ) injury and esophageal dysmotility were lower than EGJ injury alone or normal dynamics (p < 0.05 for both comparisons). PSPWI with esophageal peristalsis abnormality was lower than EGJ injury (p = 0.049), while MNBI showed no statistical difference. PSPWI, MNBI and their combination have auxiliary diagnostic values for esophageal peristalsis [area under the curves (AUCs): 0.683, 0.656, 0.708)] while only their combination for EGJ injury (AUC: 0.610). And they positively correlated with esophageal motility while negatively correlated with ineffective swallows and acid reflux events. CONCLUSIONS PSPWI and MNBI, indicating impairment of esophageal chemical clearance and mucosa integrity, were lower in RGERD patients with multiple esophageal dynamic injuries than single injuries or normal dynamics. Moreover, they provided useful contributing information for potential dynamic injuries if manometry has already been found normal or marginal.
Collapse
Affiliation(s)
- Yanqiu Li
- Second Gastroenterology Department, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Lixia Wang
- Second Gastroenterology Department, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Dong Yang
- Second Gastroenterology Department, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Zhifeng Zhang
- Second Gastroenterology Department, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiaoyu Sun
- Second Gastroenterology Department, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiaoling Geng
- Second Gastroenterology Department, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Jiarong Lin
- Second Gastroenterology Department, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Zhijun Duan
- Second Gastroenterology Department, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| |
Collapse
|
9
|
Esophageal hypervigilance and visceral anxiety contribute to symptom severity of laryngopharyngeal reflux. Am J Gastroenterol 2022; 118:786-793. [PMID: 36693025 DOI: 10.14309/ajg.0000000000002151] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 11/14/2022] [Indexed: 01/25/2023]
Abstract
OBJECTIVES Laryngopharyngeal reflux (LPR) is a clinical conundrum without a diagnostic gold standard. The esophageal hypervigilance and anxiety scale (EHAS) is a questionnaire designed for cognitive-affective evaluation of visceral sensitivity. We hypothesized that esophageal hypervigilance and symptom-specific anxiety have an etiopathological role in generation of LPR symptoms, especially when gastroesophageal reflux disease (GERD) cannot explain these symptoms. METHODS Consecutive patients with LPR and/or GERD symptoms lasting >3 months were prospectively enrolled and characterized using the reflux symptom index (RSI), GERD questionnaire (GERDQ), and EHAS. Eligible patients with negative endoscopy underwent 24-hour impedance-pH monitoring off acid suppression for phenotyping GERD, and assessment of reflux burden, using conventional metrics [acid exposure time (AET) and number of reflux episodes] as well as novel metrics [mean nocturnal baseline impedance (MNBI) and post-reflux swallow induced peristaltic wave (PSPW) index]. RESULTS Of 269 enrolled patients (mean age 47.1 years, 21-65 years, 60.6% female), 90 patients with concomitant GERD and LPR symptoms, 32 patients with dominant LPR symptoms, 102 patients with dominant GERD symptoms, and 45 controls. Patients with concomitant GERD and LPR symptoms had higher EHAS than those with dominant GERD symptoms and controls. ( P ≤ 0.001); patients with dominant LPR symptoms had higher EHAS than controls. ( P = 0.007). On Pearson's correlation, EHAS positively correlated with RSI. CONCLUSIONS Esophageal hypervigilance symptom-specific anxiety may be more important than reflux burden in LPR symptom perception.
Collapse
|
10
|
Wang D, Duan C, Zhang X, Xu J, Hou X, Xiang X. Mean Nocturnal Baseline Impedance and Post-reflux Swallow-induced Peristaltic Wave Index Could Identify Gastroesophageal Reflux Disease but pH-Impedance Metrics Alone Might Not Correlate With Proton Pump Inhibitor Response in Chinese Patients With Typical Reflux Symptoms. J Neurogastroenterol Motil 2022; 28:580-588. [PMID: 36250365 PMCID: PMC9577582 DOI: 10.5056/jnm21156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/11/2021] [Accepted: 02/14/2022] [Indexed: 11/25/2022] Open
Abstract
Background/Aims Lyon consensus differentiates acid exposure time (AET) as physiological, borderline, and pathological. Mean nocturnal baseline impedance (MNBI) and post-reflux swallow-induced peristaltic wave index (PSPWi) are believed to increase diagnostic yield of gastroesophageal reflux disease (GERD) and correlate with symptom outcome of proton pump inhibitor (PPI) treatment. We aim to explore the clinical characteristics and the correlation of pH-impedance parameters with PPI response in Chinese patients with different AET levels. Methods We retrospectively investigated 177 patients with typical reflux symptoms who received esophageal function tests. The demographics, GERD questionnaire scores, the proportion of esophagitis and PPI responders, and manometric and pH-impedance parameters were compared among patients with AET < 4%, 4-6%, and > 6%. In patients with AET ≥ 4%, manometric and pH-impedance parameters were compared between PPI responders and non-responders. Results Among 177 patients, 69 (39.0%) had AET 4-6%, and 53 (29.9%) had AET > 6%. The demographics, esophagogastric junction type, and occurrence of ineffective esophageal motility were similar between patients with AET 4-6% and > 6%, but different from AET < 4%. MNBI and PSPWi were different among different AET levels, but similar between PPI responders and non-responders in patients with AET ≥ 4%. Conclusions It is reasonable to set 4% as a threshold to define pathological AET in Chinese patients. MNBI and PSPWi could identify GERD patients, but may not correlate with PPI response of Chinese GERD patients.
Collapse
Affiliation(s)
- Dongke Wang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan 430022, China
| | - Chaofan Duan
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan 430022, China
| | - Xiaohao Zhang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan 430022, China
| | - Junying Xu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan 430022, China
| | - Xiaohua Hou
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan 430022, China
| | - Xuelian Xiang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Wuhan 430022, China
| |
Collapse
|
11
|
Wu Y, Guo Z, Zhang C, Zhan Y. Mean nocturnal baseline impedance, a novel metric of multichannel intraluminal impedance-pH monitoring in diagnosing gastroesophageal reflux disease. Therap Adv Gastroenterol 2022; 15:17562848221105195. [PMID: 35983222 PMCID: PMC9379274 DOI: 10.1177/17562848221105195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 05/18/2022] [Indexed: 02/04/2023] Open
Abstract
Gastroesophageal reflux disease (GERD) is a common disease with increasing prevalence worldwide. However, the diagnosis of GERD is challenging because there are no definite gold standard criteria. Recently, a novel impedance parameter, namely mean nocturnal baseline impedance (MNBI), has been proposed, which reflects the burden of longitudinal reflux and the integrity of esophageal mucosa. MNBI has shown an immense promise for increasing the diagnostic rate of multichannel intraluminal impedance-pH (MII-pH) monitoring and predicting the response to proton pump inhibitor (PPI) or anti-reflux intervention in patients with reflux symptoms. The present paper reviews the association between baseline impedance and esophageal mucosal integrity, the acquisition of MNBI in 24-h MII-pH monitoring, the clinical utilization of MNBI in improving the diagnosis rate of GERD in patients with typical reflux symptoms, predicting the response to PPI or anti-reflux treatment in these patients, the utilization of MNBI in diagnosing patients with atypical symptoms or extra-esophageal symptoms, and the correlation between reflux burden and MNBI. MNBI should be routinely assessed using MII-pH monitoring.
Collapse
Affiliation(s)
| | | | | | - Yutao Zhan
- Department of Gastroenterology, Beijing Tong Ren Hospital, Capital Medical University, No.1, Dongjiaominxiang, Dongcheng District, Beijing 100730, P. R. China
| |
Collapse
|
12
|
Ma S, Patel V, Yadlapati R. Factors that Impact Day-to-Day Esophageal Acid Reflux Variability and Its Diagnostic Significance for Gastroesophageal Reflux Disease. Dig Dis Sci 2022; 67:2730-2738. [PMID: 35441274 PMCID: PMC9377569 DOI: 10.1007/s10620-022-07496-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/23/2022] [Indexed: 01/10/2023]
Abstract
Gastroesophageal reflux disease (GERD) is a common disease affecting a significant number of adults both globally and in the USA. GERD is clinically diagnosed based on patient-reported symptoms, and the gold standard for diagnosis is ambulatory reflux monitoring, a tool particularly utilized in the common scenario of non-response to therapy or atypical features. Over the past 20 years, there has been a shift toward extending the duration of reflux monitoring, initially from 24 to 48 h and more recently to 96 h, primarily based on a demonstrated increase in diagnostic yield. Further, multiple studies demonstrate clinically relevant variability in day-to-day acid exposure levels in nearly 30% of ambulatory reflux monitoring studies. For these reasons, an ongoing clinical dilemma relates to the optimal activities patients should engage in during prolonged reflux monitoring. Thus, the aims of this review are to detail what is known about variability in daily acid exposure, discuss factors that are known to influence this day-to-day variability (i.e., sleep patterns, dietary/eating habits, stress, exercise, and medications), and finally provide suggestions for patient education and general GERD management to reduce variation in esophageal acid exposure levels.
Collapse
Affiliation(s)
- Steven Ma
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Vandan Patel
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Rena Yadlapati
- Division of Gastroenterology, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| |
Collapse
|
13
|
Frazzoni L, Frazzoni M, De Bortoli N, Ribolsi M, Tolone S, Russo S, Conigliaro RL, Penagini R, Fuccio L, Zagari RM, Savarino E. Application of Lyon Consensus criteria for GORD diagnosis: evaluation of conventional and new impedance-pH parameters. Gut 2022; 71:1062-1067. [PMID: 34376517 DOI: 10.1136/gutjnl-2021-325531] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/04/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To validate Lyon Consensus criteria for diagnosing gastro-oesophageal reflux disease (GORD) by reflux monitoring. DESIGN Manual review of impedance-pH tracings from patients with proton pump inhibitor (PPI)-dependent heartburn, evaluated off PPI. Acid exposure time (AET) thresholds defined by the Lyon Consensus and impedance parameters were investigated, namely, total refluxes (TRs), postreflux swallow-induced peristaltic wave (PSPW) index and mean nocturnal baseline impedance (MNBI). RESULTS The study included 488 patients, 178 (36%) with normal (<4%) AET, 89 (18%) with inconclusive (4%-6%) AET and 221 (45%) with abnormal (>6%) AET, alongside with 70 healthy controls. At receiver operating characteristic analysis, area under curve was 0.89, 0.95 and 0.89 for TRs, PSPW index and MNBI, respectively, and threshold values were 40, 50% and 2000 Ω; the 4% physiological AET threshold defined by the Lyon Consensus showed 100% specificity but 63% sensitivity. The thresholds defined for impedance parameters were validated against AET by means of ordered logistic regression, being in concordance with the 4% AET threshold (OR 2.5 for TRs, 18.9 for PSPW index and 5.7 for MNBI). TRs positivity and concordant PSPW index/MNBI positivity were found in 80%-90% of patients in the abnormal AET group, in 73%-74% of cases in the inconclusive AET group and in 28%-40% of cases in the group with normal AET. CONCLUSIONS Our results show the overall validity of the Lyon Consensus approach to GORD diagnosis. Adding evaluation of impedance parameters, namely, TRs, PSPW index and MNBI to AET appraisal, substantially improves the diagnostic yield of reflux monitoring.
Collapse
Affiliation(s)
- Leonardo Frazzoni
- Department of Medical and Surgical Sciences, IRCCS Azienda Ospedaliero-Universitaria di Bologna Policlinico S Orsola-Malpighi, Bologna, Italy
| | - Marzio Frazzoni
- Digestive Pathophysiology Unit, Azienda Ospedaliero-Universitaria di Modena Ospedale Civile di Baggiovara, Modena, Italy
| | - Nicola De Bortoli
- Department of New Technologies and Translational Research in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Mentore Ribolsi
- Digestive Disease, Università Campus Bio-Medico di Roma Facoltà Dipartimentale di Medicina e Chirurgia, Roma, Italy
| | - Salvatore Tolone
- General and Bariatric Surgery Unit, Department of Surgery, Seconda Università degli Studi di Napoli Facoltà di Medicina e Chirurgia, Caserta, Italy
| | - Salvatore Russo
- Digestive Pathophysiology Unit, Azienda Ospedaliero-Universitaria di Modena Ospedale Civile di Baggiovara, Modena, Italy
| | - Rita Luisa Conigliaro
- Digestive Endoscopy Unit, Azienda Ospedaliero-Universitaria di Modena Ospedale Civile di Baggiovara, Modena, Italy
| | - Roberto Penagini
- Department of Pathophysiology and Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Lorenzo Fuccio
- Department of Medical and Surgical Sciences, IRCCS Azienda Ospedaliero-Universitaria di Bologna Policlinico S Orsola-Malpighi, Bologna, Italy
| | - Rocco Maurizio Zagari
- Department of Medical and Surgical Sciences, IRCCS Azienda Ospedaliero-Universitaria di Bologna Policlinico S Orsola-Malpighi, Bologna, Italy
| | - Edoardo Savarino
- Department of Surgery, Oncology and Gastroenterology, University of Padua School of Medicine and Surgery, Padova, Italy
| |
Collapse
|
14
|
Reflux Monitoring in Lung Disease: Is There a Better Metric than Esophageal Acid Exposure Time? Am J Gastroenterol 2022; 117:403-404. [PMID: 35080201 DOI: 10.14309/ajg.0000000000001651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 01/19/2022] [Indexed: 12/11/2022]
Abstract
Ambulatory reflux monitoring can be performed with either a telemetry capsule to monitor for esophageal acid exposure alone for a period of 48-96 hours, and a 24 hour catheter based impedance/pH study which is most valuable for evaluating patients with objective evidence of GERD who are incompletely relieved with proton pump inhibitors. Some would consider catheter-based impedance/pH as the "best" test to evaluate patients with extraesophageal symptoms including suspected pulmonary complications of GERD. This editorial provides comment on the use of novel advanced metrics, mean nocturnal baseline impedance and post-reflux induced-swallow peristaltic wave index in analysis of these studies.
Collapse
|
15
|
Wu Y, Guo Z, Zhang C, Zhan Y. Role of the Mean Nocturnal Baseline Impedance in Identifying Evidence Against Pathologic Reflux in Patients With Refractory Gastroesophageal Reflux Disease Symptoms as Classified by the Lyon Consensus. J Neurogastroenterol Motil 2022; 28:121-130. [PMID: 34980695 PMCID: PMC8748854 DOI: 10.5056/jnm20277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/24/2021] [Accepted: 04/15/2021] [Indexed: 12/13/2022] Open
Abstract
Background/Aims Mean nocturnal baseline impedance (MNBI) is a new reflux metric for mucosal integrity. It remains unclear whether MNBI can help identify evidence against pathological reflux by the Lyon Consensus in patients with refractory gastroesophageal reflux disease (GERD) symptoms. Methods Three hundred and forty-nine patients with refractory GERD symptoms enrolled in this study were subjected to high-resolution manometry, 24-hour multichannel intraluminal impedance-pH (MII-pH) monitoring, and endoscopy. Conventional indexes (ie, reflux events and acid exposure time) and the novel index (MNBI) of MII-pH monitoring were extracted and analyzed. The value of MNBI in diagnosing patients with evidence against pathologic reflux was evaluated by receiver-operating-characteristic analysis. Results There were 102 (29.2%) patients with evidence against pathologic reflux, 149 (42.7%) with inconclusive or borderline evidence and 98 (28.1%) with conclusive evidence for pathologic reflux. The MNBI was significantly higher while the proportion of pathological MNBI was significantly lower in subjects with evidence against pathologic reflux than in patients with inconclusive or borderline evidence and in patients with conclusive evidence for pathologic reflux (2444.3 [1977.9-2997.4] vs 1992.8 [1615.5-2253.6] and vs 1772.3 [758.6-2161.3], both P < 0.001; 42.2% vs 79.7% and vs 80.0%, both P < 0.05). When identifying evidence against pathologic reflux in patients with refractory GERD symptoms, the MNBI yielded an area under the curve of 0.749 (P < 0.001) at a cutoff value of 1941.8 Ω. Conclusions The MNBI has a good diagnostic value for evidence against pathological reflux in patients with refractory GERD symptoms. For its simplicity and reproducibility, we believe that MNBI should be referred to in reports of impedance-pH tracings by physicians.
Collapse
Affiliation(s)
- Yanhong Wu
- Department of Gastroenterology, Beijing Tong Ren Hospital, Capital Medical University, Beijing, China
| | - Zihao Guo
- Department of Gastroenterology, Beijing Tong Ren Hospital, Capital Medical University, Beijing, China
| | - Chuan Zhang
- Department of Gastroenterology, Beijing Tong Ren Hospital, Capital Medical University, Beijing, China
| | - Yutao Zhan
- Department of Gastroenterology, Beijing Tong Ren Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
16
|
Visaggi P, Mariani L, Svizzero FB, Tarducci L, Sostilio A, Frazzoni M, Tolone S, Penagini R, Frazzoni L, Ceccarelli L, Savarino V, Bellini M, Gyawali PC, Savarino EV, de Bortoli N. Clinical use of mean nocturnal baseline impedance and post-reflux swallow-induced peristaltic wave index for the diagnosis of gastro-esophageal reflux disease. Esophagus 2022; 19:525-534. [PMID: 35768671 PMCID: PMC9436885 DOI: 10.1007/s10388-022-00933-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/07/2022] [Indexed: 02/03/2023]
Abstract
The clinical diagnosis of gastro-esophageal reflux disease (GERD) is based on the presence of typical esophageal troublesome symptoms. In clinical practice, heartburn relief following a proton pump inhibitor (PPI) trial or endoscopy can confirm a diagnosis of GERD. In cases of diagnostic uncertainty or before anti-reflux interventions, combined impedance-pH monitoring (MII-pH) provides a comprehensive assessment of both physical and chemical properties of the refluxate, allowing to achieve a conclusive diagnosis of GERD. Recently, the Lyon Consensus proposed the use of mean nocturnal baseline impedance (MNBI) and post-reflux swallow-induced peristaltic wave index (PSPW-I) as novel MII-pH metrics to support the diagnosis of GERD. The calculation of MNBI and PSPW-I currently needs to be performed manually, but artificial intelligence systems for the automated analysis of MII-pH tracings are being developed. Several studies demonstrated the increased diagnostic yield MNBI and PSPW-I for the categorization of patients with GERD at both on- and off-PPI MII-pH monitoring. Accordingly, we performed a narrative review on the clinical use and diagnostic yield of MNBI and PSPW-I when the diagnosis of GERD is uncertain. Based on currently available evidence, we strongly support the evaluation of PSPW-I and MNBI as part of the standard assessment of MII-pH tracings for the evaluation of GERD, especially in patients with endoscopy-negative heartburn.
Collapse
Affiliation(s)
- Pierfrancesco Visaggi
- Division of Gastroenterology, Department of Translational Research and New Technologies in Medicine and Surgery, School of Medicine, University of Pisa, Pisa, Italy
| | - Lucia Mariani
- Division of Gastroenterology, Department of Translational Research and New Technologies in Medicine and Surgery, School of Medicine, University of Pisa, Pisa, Italy
| | - Federica Baiano Svizzero
- Division of Gastroenterology, Department of Translational Research and New Technologies in Medicine and Surgery, School of Medicine, University of Pisa, Pisa, Italy
| | - Luca Tarducci
- Division of Gastroenterology, Department of Translational Research and New Technologies in Medicine and Surgery, School of Medicine, University of Pisa, Pisa, Italy
| | - Andrea Sostilio
- Division of Gastroenterology, Department of Translational Research and New Technologies in Medicine and Surgery, School of Medicine, University of Pisa, Pisa, Italy
| | - Marzio Frazzoni
- Digestive Pathophysiology Unit, Baggiovara Hospital, Modena, Italy
| | - Salvatore Tolone
- General and Bariatric Surgery Unit, Department of Surgery, University of Caserta Luigi Vanvitelli, Caserta, Italy
| | - Roberto Penagini
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Leonardo Frazzoni
- Gastroenterology Unit, Department of Medical and Surgical Sciences, Sant'Orsola Hospital, University of Bologna, Bologna, Italy
| | - Linda Ceccarelli
- Division of Gastroenterology, Department of Translational Research and New Technologies in Medicine and Surgery, School of Medicine, University of Pisa, Pisa, Italy
| | - Vincenzo Savarino
- Gastroenterology Unit, Department of Internal Medicine "DiMI", University of Genoa, Genoa, Italy
| | - Massimo Bellini
- Division of Gastroenterology, Department of Translational Research and New Technologies in Medicine and Surgery, School of Medicine, University of Pisa, Pisa, Italy
| | - Prakash C Gyawali
- Division of Gastroenterology, Washington University School of Medicine, St. Louis, USA
| | - Edoardo V Savarino
- Division of Gastroenterology, Department of Surgical, Oncological and Gastroenterological Sciences, University of Padua, Padua, Italy
| | - Nicola de Bortoli
- Division of Gastroenterology, Department of Translational Research and New Technologies in Medicine and Surgery, School of Medicine, University of Pisa, Pisa, Italy.
| |
Collapse
|
17
|
The Results From Up-Front Esophageal Testing Predict Proton Pump Inhibitor Response in Patients With Chronic Cough. Am J Gastroenterol 2021; 116:2199-2206. [PMID: 34287222 DOI: 10.14309/ajg.0000000000001389] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/24/2021] [Indexed: 12/11/2022]
Abstract
INTRODUCTION The clinical management of chronic cough patients is challenging, and their response to proton pump inhibitors (PPIs) is considered as unsatisfactory. Few data concerning the association between impedance-pH variables and PPI response in these patients are available. Mean nocturnal baseline impedance (MNBI) and postreflux swallow-induced peristaltic wave (PSPW) index increase the diagnostic yield of impedance-pH in gastroesophageal reflux disease. METHODS Demographic, clinical, and endoscopy findings; impedance-pH; and high-resolution manometry tracings from consecutive patients assessed for cough were evaluated. Univariable and multivariable regression models were generated to evaluate the association between impedance-pH and high-resolution manometry findings, endoscopic and clinical characteristics, and PPI response. RESULTS A total of 178 patients were included. Eighty-four of 178 cough patients (47.2%) displayed grade C-D erosive esophagitis or were characterized by a pathological acid exposure time (AET) and/or positive symptom association probability/symptom index. When also considering MNBI and PSPW, 135 of 178 patients (75.8%) were characterized by the evidence of reflux disease (P < 0.001). Eighty patients (44.9%) had cough responding to PPIs, whereas 98 (55.1%) were nonresponders (P = 0.071). At the receiver operating characteristic analysis, both PSPW index and MNBI were associated to PPI responsiveness. MNBI and PSPW index showed higher sensitivity in predicting PPI response compared with AET and symptom association probability/symptom index. The area under the curves of MNBI and PSPW index were significantly higher than that of AET (P < 0.01 for both comparisons). When patients were stratified according to AET and excluding those with erosive esophagitis, pathological MNBI or PSPW index, hiatal hernia, and hypomotility features were associated to PPI response in all groups. DISCUSSION Our results demonstrate the usefulness of an up-front esophageal testing in discriminating reflux-related cough patients and predicting PPI response.
Collapse
|
18
|
Park JS, Van der Wall H, Falk GL. Post-reflux swallow-induced peristaltic wave is impaired in laryngopharyngeal and gastro-oesophageal reflux disease. Clin Physiol Funct Imaging 2021; 42:8-14. [PMID: 34605162 DOI: 10.1111/cpf.12729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 09/27/2021] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Laryngopharyngeal reflux (LPR) and gastro-oesophageal reflux disease (GORD) result from the reflux of gastric contents. The post-reflux swallow-induced peristaltic wave (PSPW) is an oesophageal reflex that facilitates chemical clearance of gastric contents following reflux events. PSPW index is a novel parameter that has been validated in assessing the effectiveness of chemical clearance in GORD, but not in LPR. This study aimed to assess chemical clearance in LPR and GORD by measuring PSPW indices in a consecutive series of patients. METHODS Reviewers blindly analysed off-therapy impedance-pH tracings from 187 patients clinically categorized as LPR (n = 105) or GORD (n = 82) by predominant symptom profile. Conventional impedance-pH measures and PSPW indices were analysed. RESULTS Mean PSPW index in the LPR group was higher than in the GORD group (39.7% (±17.7%) vs. 20.6% (±13.4%); p < 0.001). Abnormally low PSPW index (<61%) was seen in 85 (81%) of the LPR group, and 80 (97.6%) of the GORD group (p < 0.001). Area under the ROC curve for PSPW index to diagnose LPR was 0.83 (95% CI: 0.767-0.889; p < 0.001). CONCLUSION Post-reflux swallow-induced peristaltic wave was impaired in patients with LPR as well as oesophageal GORD, indicating an abnormality of chemical clearance following a reflux episode in both groups. PSPW index was more severely impaired in gastro-oesophageal reflux disease (GORD). The present study shows PSPW index is useful in the diagnosis of both LPR and GORD and exposes an abnormality of clearance of the oesophagus.
Collapse
Affiliation(s)
- Jin-Soo Park
- Department of Surgery, Concord Repatriation General Hospital, Sydney, NSW, Australia.,University of Notre Dame, Sydney, NSW, Australia.,University of Sydney, Sydney, NSW, Australia
| | - Hans Van der Wall
- University of Notre Dame, Sydney, NSW, Australia.,CNI Meadowbank, Sydney, NSW, Australia
| | - Gregory L Falk
- Department of Surgery, Concord Repatriation General Hospital, Sydney, NSW, Australia.,University of Sydney, Sydney, NSW, Australia
| |
Collapse
|
19
|
Ghisa M, Barberio B, Savarino V, Marabotto E, Ribolsi M, Bodini G, Zingone F, Frazzoni M, Savarino E. The Lyon Consensus: Does It Differ From the Previous Ones? J Neurogastroenterol Motil 2020; 26:311-321. [PMID: 32606254 PMCID: PMC7329153 DOI: 10.5056/jnm20046] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 04/21/2020] [Indexed: 12/13/2022] Open
Abstract
Gastroesophageal reflux disease (GERD) is a complex disorder with heterogeneous symptoms and a multifaceted pathogenetic basis, which prevent a simple diagnostic algorithm or any categorical classification. Clinical history, questionnaires and response to proton pump inhibitor (PPI) therapy are insufficient tools to make a conclusive diagnosis of GERD and further investigations are frequently required. The Lyon Consensus goes beyond the previous classifications and defines endoscopic and functional parameters able to establish the presence of GERD. Evidences for reflux include high-grade erosive esophagitis, Barrett’s esophagus, and peptic strictures at endoscopy as well as esophageal acid exposure time > 6% on pH-metry or combined pH-impedance monitoring. Even if a normal endoscopy does not exclude GERD, its combination with distal acid exposure time < 4% on off-PPI pH-impedance monitoring provides sufficient evidence refuting this diagnosis. Reflux-symptom association on pH-monitoring provides supportive evidence for reflux-triggered symptoms and may predict a better treatment outcome, when present. Also recommendations to perform pH-impedance “on” or “off” PPI are well depicted. When endoscopy and pH-metry or combined pH-impedance monitoring are inconclusive, adjunctive evidence from biopsy findings (eg, microscopic esophagitis), high-resolution manometry (ie, ineffective esophagogastric barrier and esophageal body hypomotility), and novel impedance metrics, such as mean nocturnal baseline impedance and post-reflux swallow-induced peristaltic wave index, can contribute to better identify patients with GERD. Definition of individual patient phenotype, based on the level of refluxate exposure, mechanism of reflux, efficacy of clearance, underlying anatomy of the esophagogastric junction, and clinical presentation, will lead to manage GERD patients with a tailored approach chosen among different types of therapy.
Collapse
Affiliation(s)
- Matteo Ghisa
- Division of Gastroenterology, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Brigida Barberio
- Division of Gastroenterology, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Vincenzo Savarino
- Division of Gastroenterology, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Elisa Marabotto
- Division of Gastroenterology, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Mentore Ribolsi
- Unit of Gastroenterology, Campus Bio-Medico University, Rome, Italy
| | - Giorgia Bodini
- Division of Gastroenterology, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Fabiana Zingone
- Division of Gastroenterology, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | | | - Edoardo Savarino
- Division of Gastroenterology, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| |
Collapse
|