Evidence map›Paper›PMID 26908528›Full record

Observational studyBMJ open2016

Plasma pro-atrial natriuretic peptide to indicate fluid balance during cystectomy: a prospective observational study.

Kirsten C Rasmussen, Michael Højskov, Birgitte Ruhnau, Lisbeth Salling, Tom Pedersen, Jens P Goetze, Niels H Secher

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in BMJ open, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

5 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
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  3. Article
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  5. Observational
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

7 authors at 1 institution in 1 country.

Kirsten C RasmussenDepartments of Anaesthesiology, Rigshospitalet, Copenhagen, Denmark.
Michael HøjskovDepartments of Anaesthesiology, Rigshospitalet, Copenhagen, Denmark.
Birgitte RuhnauDepartments of Anaesthesiology, Rigshospitalet, Copenhagen, Denmark.
Lisbeth SallingDepartment of Urology, Rigshospitalet, Copenhagen, Denmark.
Tom PedersenCenter for Head and Orthopaedic Surgery, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
Jens P GoetzeDepartment of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark.
Niels H SecherDepartments of Anaesthesiology, Rigshospitalet, Copenhagen, Denmark.
Rigshospitalet · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesDuring surgery the volume of administered fluid is debated. Pro-atrial natriuretic peptide (proANP) is released by atrial distension, and we evaluated the relationship between changes in proANP associated with perioperative fluid balance.

designProspective observational study.

settingOne university/tertiary centre.

participantsThe study included patients who underwent radical cystectomy. Plasma for determination of proANP was obtained before surgery, after resection of the bladder, and at the end of surgery for 20 robotic-assisted radical cystectomy (RARC) and 20 open radical cystectomy (ORC) procedures.

resultsThe blood loss was 1871 (95% CI 1267 to 2475) vs 589 mL (378 to 801) in the ORC and RARC groups (p=0.001), respectively, and fluid balance was positive by 1518 mL (1215 to 1821) during ORC, and by 1858 mL (1461 to 2255) during RARC (p=0.163). Yet, at the end of ORC, plasma proANP was reduced by 23% (14% to 32%, p=0.001), while plasma proANP did not change significantly during RARC. Thus, plasma proANP was associated both with the perioperative blood loss (r= -0.475 (0.632 to -0.101), p=0.002), and with fluid balance (r=0.561 (0.302 to 0.740), p=0.001), indicating that a stable plasma proANP required a fluid surplus by 2.4 L (2.0 to 2.7).

conclusionsThere was a correlation between intraoperative haemorrhage and a decrease in plasma proANP and, taking plasma proANP to indicate filling of the heart, about 2.5 L surplus volume of lactated Ringer's solution appears to maintain cardiac preload during cystectomy. TRIAL REGISTRATION NUMBER: EudraCT (2012-005040-20), Results.

Indexed as

CystectomyWater-Electrolyte BalanceAgedAtrial Natriuretic FactorBlood Loss, SurgicalFemaleHumansIsotonic SolutionsLength of StayMaleMiddle AgedPostoperative ComplicationsProspective StudiesRinger's SolutionTreatment OutcomeAtrial Natriuretic FactorIsotonic SolutionsRinger's Solution

Identifiers

PMID26908528
PMCPMC4769390
OpenAlexW2274512826

What OpenQuestion holds

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LicenceCC BY-NC
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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.