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  • Routine H. pylori...

Routine H. pylori Screening Offers No Benefit of curbing bleeding risk After Acute MI: JAMA

Written By : Dr Riya Dave |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2025-10-08T20:45:53+05:30  |  Updated On 8 Oct 2025 8:46 PM IST
Routine H. pylori Screening Offers No Benefit of curbing bleeding risk After Acute MI: JAMA
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According to a new study published in JAMA, in unselected patients with acute myocardial infarction, routine Helicobacter pylori screening did not significantly lower the risk of upper gastrointestinal (GI) bleeding. The study was published by Robin H. and colleagues. Upper GI bleeding is an established complication following myocardial infarction and frequently attributed to the anticoagulant or antiplatelet therapy.

The objective of this study was to identify if routine H. pylori screening during hospitalization for myocardial infarction could decrease upper gastrointestinal bleeding and enhance clinical outcomes versus usual care. This multicenter, open-label, cluster randomized, crossover trial was performed at 35 Swedish hospitals, organized in 18 clusters. The trial lasted from November 17, 2021, to January 17, 2024, with follow-up on January 17, 2025. The hospital clusters were each subjected to two one-year periods: one with usual H. pylori screening of all patients admitted with myocardial infarction, and one with standard care, with a two-month washout interval between them.

During the periods of screening, patients received H. pylori testing with the urea breath test alongside routine post–myocardial infarction care. Information was obtained by means of a national clinical registry combined with Swedish health data registries. The end point was upper gastrointestinal bleeding and was analyzed with a negative binomial model in an intention-to-treat population.

Results

  • 18,466 patients (median 71 years, interquartile range 61–79 years) were enrolled, including 13,138 males (71%). 9245 of the patients had been hospitalized during the screening periods for H. pylori, and 9221 during nonscreening (usual care) periods.

  • At hospital admission, 2284 patients in the screening group and 2275 in the nonscreening group (both 24.7%) used proton pump inhibitors (PPIs).

  • Among 6480 patients (70%) screened during the screening periods, 1532 (23.6%) were positive for infection. After a median of 1.9 years' follow-up, 299 patients in the screening group had upper gastrointestinal bleeding, compared with 336 in the control group.

  • The event rate was 16.8 events per 1000 person-years in the screening group and 19.2 events per 1000 person-years in the usual care group, yielding a rate ratio (RR) of 0.90 (95% CI, 0.77–1.05; P = 0.18).

  • Subgroup analysis found the effect of screening to differ depending on admission anemia status.

  • The rate ratio was 0.98 (95% CI, 0.80–1.21) among nonanemic patients, with no difference.

  • For those with mild anemia, RR was 0.64 (95% CI, 0.42–0.98), and for those with moderate to severe anemia, RR was 0.44 (95% CI, 0.23–0.87), suggesting benefit of screening among these subgroups (P for interaction = 0.03).

The study concluded that among hospitalized patients with acute myocardial infarction, routine Helicobacter pylori screening had no significant protective effect against upper gastrointestinal bleeding in comparison with standard care. Future studies might consider selective screening of high-risk subgroups to maximize gastrointestinal protection during cardiac therapy.

Reference:

Hofmann R, James S, Sundqvist MO, et al. Helicobacter pylori Screening After Acute Myocardial Infarction: The Cluster Randomized Crossover HELP-MI SWEDEHEART Trial. JAMA. 2025;334(13):1160–1169. doi:10.1001/jama.2025.15047



JAMAHelicobacter pylorimyocardial infarctiongastrointestinal bleedingurea breath testclinical trialscreeninganemiaSweden
Source : JAMA
Dr Riya Dave
Dr Riya Dave

    Dr Riya Dave has completed dentistry from Gujarat University in 2022. She is a dentist and accomplished medical and scientific writer known for her commitment to bridging the gap between clinical expertise and accessible healthcare information. She has been actively involved in writing blogs related to health and wellness.

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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