TY - JOUR
T1 - Correlation between reflux burden, peristaltic function, and mucosal integrity in GERD patients
AU - Ribolsi, Mentore
AU - Gyawali, Chandra Prakash
AU - Savarino, Edoardo
AU - Rogers, Benjamin
AU - Rengarajan, Arvind
AU - Della Coletta, Marco
AU - Ghisa, Matteo
AU - Cicala, Michele
N1 - Publisher Copyright:
© 2019 John Wiley & Sons Ltd
PY - 2020/3/1
Y1 - 2020/3/1
N2 - Background: Mean nocturnal baseline impedance (MNBI) augments the diagnostic yield of multichannel intraluminal impedance-pH (MII-pH) monitoring. While acid exposure time (AET) correlates with MNBI, it remains unclear whether esophageal motility affects MNBI values. The present study was aimed at evaluating the respective roles of esophageal motor function and AET on MNBI. Methods: High-resolution manometry (HRM) studies and ambulatory 24-hour MII-pH monitoring tracings were retrospectively analyzed from consecutive endoscopy-negative GERD patients with typical symptoms responsive to previous acid-suppressive therapy from three tertiary care centers. Univariate and multivariate analyses were performed to determine predictors of pathologic MNBI values at 3 cm and 5 cm above the lower esophageal sphincter (LES). Key Results: Patients with pathological AET displayed lower MNBI values at 3 cm and 5 cm (P <.01) compared to patients with non-pathological AET. Similarly, significantly lower MNBI values were also noted at both sites with type 3 EGJ compared to type 1 EGJ (P ≤.02 for each comparison), and with absent contractility compared to normal peristalsis (P ≤.02 for each comparison). On multivariate analysis, the presence of type 2 or 3 EGJ and absent contractility were associated with a significantly higher probability of pathological MNBI values at 3 cm and 5 cm above the LES. Conclusions and Inferences: Disruption of the EGJ and absent contractility on HRM are both associated with lower MNBI values. HRM findings complement reflux testing using MII-pH monitoring.
AB - Background: Mean nocturnal baseline impedance (MNBI) augments the diagnostic yield of multichannel intraluminal impedance-pH (MII-pH) monitoring. While acid exposure time (AET) correlates with MNBI, it remains unclear whether esophageal motility affects MNBI values. The present study was aimed at evaluating the respective roles of esophageal motor function and AET on MNBI. Methods: High-resolution manometry (HRM) studies and ambulatory 24-hour MII-pH monitoring tracings were retrospectively analyzed from consecutive endoscopy-negative GERD patients with typical symptoms responsive to previous acid-suppressive therapy from three tertiary care centers. Univariate and multivariate analyses were performed to determine predictors of pathologic MNBI values at 3 cm and 5 cm above the lower esophageal sphincter (LES). Key Results: Patients with pathological AET displayed lower MNBI values at 3 cm and 5 cm (P <.01) compared to patients with non-pathological AET. Similarly, significantly lower MNBI values were also noted at both sites with type 3 EGJ compared to type 1 EGJ (P ≤.02 for each comparison), and with absent contractility compared to normal peristalsis (P ≤.02 for each comparison). On multivariate analysis, the presence of type 2 or 3 EGJ and absent contractility were associated with a significantly higher probability of pathological MNBI values at 3 cm and 5 cm above the LES. Conclusions and Inferences: Disruption of the EGJ and absent contractility on HRM are both associated with lower MNBI values. HRM findings complement reflux testing using MII-pH monitoring.
KW - GERD
KW - esophagogastric junction
KW - high-resolution manometry
KW - mean nocturnal baseline impedance
KW - pH-impedance monitoring
UR - http://www.scopus.com/inward/record.url?scp=85074841111&partnerID=8YFLogxK
U2 - 10.1111/nmo.13752
DO - 10.1111/nmo.13752
M3 - Article
C2 - 31670453
AN - SCOPUS:85074841111
VL - 32
JO - Neurogastroenterology and Motility
JF - Neurogastroenterology and Motility
SN - 1350-1925
IS - 3
M1 - e13752
ER -