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J Clin Gastroenterol. 2008 Jul;42(6):676-9. doi: 10.1097/MCG.0b013e31814a4e5c.

Addition of a H2 receptor antagonist to PPI improves acid control and decreases nocturnal acid breakthrough.

Author information

1
Division of Gastroenterology and Hepatology, Medical University South Carolina, Charleston, SC 29425, USA.

Abstract

BACKGROUND:

The addition of a bedtime H2 receptor antagonist (H2RA) to proton pump inhibitor (PPI) b.i.d. to inhibit nocturnal acid breakthrough (NAB) is controversial. H2RA tolerance has been documented suggesting limitations in its long-term effect.

AIM:

To compare the intragastric pH and NAB occurring with twice daily PPI with or without the addition of a H2RA.

METHOD:

Multichannel intraluminal impedance-pH studies in 100 patients were reviewed. Fifty-eight patients (female 41; mean age, 54 y; range, 17 to 85) were studied on twice daily PPI. Forty-two patients (female 36; mean age, 53 y; range 20 to 85) were studied on a PPI b.i.d.+H2RA for at least 1 month at bedtime. The percentage time of intragastric pH<4 (upright, recumbent, and total) and NAB were compared between the groups.

RESULTS:

In the patients with PPI b.i.d. 64% had NAB, compared with only 17% of patients on PPI b.i.d. and H2RA q.h.s. (P<0.001). The percent time intragastric pH<4 for patients on PPI b.i.d. was significantly higher (P<0.01) compared with patients on PPI b.i.d.+H2RA q.h.s. during upright (29.1+/-3.0 vs. 18.3+/-2.9), recumbent (33.5+/-3.4 vs. 12.5+/-3.1), and entire period (31.5+/-2.8 vs. 18.0+/-3.0).

CONCLUSIONS:

The addition of a bedtime H2RA reduces the percentage time of the intragastric pH<4 and also NAB. H2RA should be considered as adjunct therapy in whom greater suppression of gastric acid control is considered desirable.

PMID:
18496394
DOI:
10.1097/MCG.0b013e31814a4e5c
[Indexed for MEDLINE]

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