Evidence map›Paper›PMID 34399982›Full record

Trial reportBritish journal of anaesthesia2021

Effects of inorganic nitrate on ischaemia-reperfusion injury after coronary artery bypass surgery: a randomised controlled trial.

Karin E Eriksson, Fredrik Eidhagen, Jan Liska, Anders Franco-Cereceda, Jon O Lundberg, Eddie Weitzberg

Registry-linked trialOpen access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in British journal of anaesthesia, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01348971 (Effects of Oral Nitrate During Coronary Artery Bypass Surgery), which is not on this map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.1field-weighted citation impact, top 24% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT01348971 phase2completednot on this map

Effects of Oral Nitrate During Coronary Artery Bypass Surgery

TypeinterventionalSponsorKarolinska InstitutetRan2011 to 2013Enrolled100ConditionsCoronary Artery DiseaseArmsSodium nitrate, Sodium chloride
3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Karin E ErikssonDepartment of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden; Department of Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden. Electronic address: karin.eriksson.1@ki.se.
Fredrik EidhagenDepartment of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden; Stockholm Center for Spine Surgery (RKC), Stockholm, Sweden.
Jan LiskaDepartment of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Department of Cardiothoracic Surgery, Karolinska University Hospital, Stockholm, Sweden.
Anders Franco-CerecedaDepartment of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Department of Cardiothoracic Surgery, Karolinska University Hospital, Stockholm, Sweden.
Jon O LundbergDepartment of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
Eddie WeitzbergDepartment of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden; Department of Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden. Electronic address: eddie.weitzberg@ki.se.
Karolinska Institutet · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNitric oxide (NO) is an important signalling molecule in the cardiovascular system with protective properties in ischaemia-reperfusion injury. Inorganic nitrate, an oxidation product of endogenous NO production and a constituent in our diet, can be recycled back to bioactive NO. We investigated if preoperative administration of inorganic nitrate could reduce troponin T release and other plasma markers of injury to the heart, liver, kidney, and brain in patients undergoing cardiac surgery.

methodsThis single-centre, randomised, double-blind, placebo-controlled trial included 82 patients undergoing coronary artery bypass surgery with cardiopulmonary bypass. Oral sodium nitrate (700 mg×2) or placebo (NaCl) were administered before surgery. Biomarkers of ischaemia-reperfusion injury and plasma nitrate and nitrite were collected before and up to 72 h after surgery. Troponin T release was our predefined primary endpoint and biomarkers of renal, liver, and brain injury were secondary endpoints.

resultsPlasma concentrations of nitrate and nitrite were elevated in nitrate-treated patients compared with placebo. The 72-h release of troponin T did not differ between groups. Other plasma biomarkers of organ injury were also similar between groups. Blood loss was not a predefined outcome parameter, but perioperative bleeding was 18% less in nitrate-treated patients compared with controls.

conclusionPreoperative administration of inorganic nitrate did not influence troponin T release or other plasma biomarkers of organ injury in cardiac surgery. CLINICAL

trial registrationNCT01348971.

Indexed as

AgedBiomarkersBlood Loss, SurgicalCardiopulmonary BypassCoronary Artery BypassDouble-Blind MethodFemaleHumansMaleMiddle AgedMyocardial Reperfusion InjuryNitratesNitric OxidePreoperative CareTroponin TBiomarkersNitratesNitric Oxidesodium nitrateTroponin Tbleedingcardiac surgeryischaemia-reperfusion injurynitratenitric oxidenitriteperioperative

Identifiers

PMID34399982
PMCPMC8524391
OpenAlexW3194477437

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.