Evidence map›Paper›PMID 33004018›Full record

Trial reportBMC emergency medicine2020

Patient and surrogate attitudes via an interviewer-administered survey on exception from informed consent enrollment in the Prehospital Air Medical Plasma (PAMPer) trial.

Insiyah Campwala, Francis X Guyette, Joshua B Brown, Peter W Adams, Barbara J Early, Mark H Yazer, Matthew D Neal, Brian S Zuckerbraun, Jason L Sperry

Open access · goldAbstract readClinical Trial, Phase IIIComparative StudyMulticenter Study
In one paragraph

Trial report in BMC emergency medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 3 pooled it
1.1field-weighted citation impact, top 21% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 3 syntheses or guidelines pooled it, 9 citations in OpenAlex.

  1. Pooled it
  2. Blood transfusion strategies for major bleeding in trauma.The Cochrane database of systematic reviews · 2025
    Pooled it
  3. Pooled it
  4. Enrollment with and without exception from informed consent in a pilot trial of tranexamic acid in children with hemorrhagic injuries.Academic emergency medicine : official journal of the Society for Academic Emergency Medicine · 2021
    Trial
  5. Article
  6. Article
  7. 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

9 authors at 1 institution in 1 country.

Insiyah CampwalaDivision of Trauma and General Surgery, Department of Surgery, University of Pittsburgh, 200 Lothrop St, Pittsburgh, PA, 15213, USA.
Francis X GuyetteDepartment of Emergency Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
Joshua B BrownDivision of Trauma and General Surgery, Department of Surgery, University of Pittsburgh, 200 Lothrop St, Pittsburgh, PA, 15213, USA.
Peter W AdamsDivision of Trauma and General Surgery, Department of Surgery, University of Pittsburgh, 200 Lothrop St, Pittsburgh, PA, 15213, USA.
Barbara J EarlyDivision of Trauma and General Surgery, Department of Surgery, University of Pittsburgh, 200 Lothrop St, Pittsburgh, PA, 15213, USA.
Mark H YazerDivision of Trauma and General Surgery, Department of Surgery, University of Pittsburgh, 200 Lothrop St, Pittsburgh, PA, 15213, USA.
Matthew D NealDivision of Trauma and General Surgery, Department of Surgery, University of Pittsburgh, 200 Lothrop St, Pittsburgh, PA, 15213, USA.
Brian S ZuckerbraunDivision of Trauma and General Surgery, Department of Surgery, University of Pittsburgh, 200 Lothrop St, Pittsburgh, PA, 15213, USA.
Jason L SperryDivision of Trauma and General Surgery, Department of Surgery, University of Pittsburgh, 200 Lothrop St, Pittsburgh, PA, 15213, USA. sperryjl@upmc.edu.ORCID 0000-0002-7999-8197
University of Pittsburgh · US

Funding

Medical Research and Materiel Command W81XWH-12-2-0023
6 · The paper itself

Abstract

objectivesWith increased focus on early resuscitation methods following injury to improve patient outcomes, studies are employing exception from informed consent (EFIC) enrollment. Few studies have assessed patients' opinions following participation in an EFIC study, and none have been conducted within the realm of traumatic hemorrhage. We surveyed those patients and surrogates previously enrolled in the Prehospital Air Medical Plasma (PAMPer) Trial to clarify their opinions related to consent and emergency research.

methodsTelephone calls were made between January-June 2019 to all patients who were enrolled under EFIC in the PAMPer study at the Pittsburgh site (169 of the 501 total patients enrolled, May 2014-Oct 2017) and their surrogates. Questions gauging approval of EFIC enrollment were asked before discussion of PAMPer trial outcomes, after disclosure of positive outcomes, and after a hypothetical negative trial outcome was proposed.

resultsOf the total 647 telephone calls made, ninety-three interviews, reflecting 70 of 169 patient enrollments, were conducted. This included 13 in which only the patient was interviewed, 23 in which the patient and a surrogate were interviewed, and 34 in which only a surrogate was interviewed. Nearly half (48.4%) of respondents did not recall their personal or family member enrollment in the study. No patients or surrogates recalled hearing about the study through community consultation or being aware of opt out procedures. Patients and surrogates were glad they were enrolled (90.3%), agreed with EFIC use for their personal enrollment (88.17%), and agreed with the general use of EFIC for the PAMPer study (81.7%). Disclosure of the true positive PAMPer study outcome resulted in a significant increase in opinions regarding personal enrollment, EFIC for personal enrollment, and EFIC for general enrollment (all p < 0.001). Disclosure of a hypothetical neutral or negative study outcome resulted in significant decreases in opinions regarding EFIC for personal enrollment (p = 0.003) and EFIC for general enrollment (p < 0.001).

conclusionsClinical trial participants with traumatic hemorrhagic shock enrolled with EFIC, and surrogates of such participants, are generally accepting of EFIC. The results of the trial in which EFIC was utilized significantly affected patient and surrogate agreement with personal and general EFIC enrollment.

Indexed as

Air AmbulancesPlasmaAdultEmergency Medical ServicesFemaleHemorrhageHumansInformed ConsentInterviews as TopicMaleMiddle AgedPennsylvaniaResuscitationEmergency researchException from informed consentHemorrhagic shockPatient/SDM attitudesTelephone survey

Identifiers

PMID33004018
PMCPMC7528275
OpenAlexW3090262494

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.