Evidence map›Paper›PMID 31598911›Full record

Observational studyJournal of nephrology2020

Aortic stiffness and central systolic pressure are associated with ambulatory orthostatic BP fall in chronic kidney disease.

Frances A Kirkham, Philip Rankin, Nikesh Parekh, Stephen G Holt, Chakravarthi Rajkumar

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Journal of nephrology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 15% 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, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Narrative Review of Carotid disease and the kidney.Annals of translational medicine · 2021
    Review
  5. Review
  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

5 authors at 2 institutions in 1 country.

Frances A KirkhamDepartment of Elderly Care and Stroke Medicine, Brighton and Sussex University Hospitals Trust, Brighton, BN2 5BE, UK. franceskirkham@btinternet.com.ORCID http://orcid.org/0000-0001-8513-3627
Philip RankinDepartment of Elderly Care and Stroke Medicine, Brighton and Sussex University Hospitals Trust, Brighton, BN2 5BE, UK.
Nikesh ParekhDepartment of Elderly Care and Stroke Medicine, Brighton and Sussex University Hospitals Trust, Brighton, BN2 5BE, UK.
Stephen G HoltDepartment of Medicine, Brighton and Sussex Medical School, University of Sussex, Brighton, UK.
Chakravarthi RajkumarDepartment of Elderly Care and Stroke Medicine, Brighton and Sussex University Hospitals Trust, Brighton, BN2 5BE, UK.
Brighton and Sussex Medical School · GBUniversity Hospitals Sussex NHS Foundation Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveOrthostatic hypotension (OH) has a significant association with cardiovascular disease. OH becomes more common in older age, as does arterial stiffness, shown to be independently associated with impaired baroreflex sensitivity and OH. Measurement of arterial compliance and central blood pressures are increasingly important, with evidence that central BP more closely correlates to end-organ damage and mortality than peripheral measurements. Patients with chronic kidney disease (CKD) are high risk for cardiovascular events, which can be predicted through measures of arterial compliance. We hypothesised that OH is associated with arterial stiffness and central blood pressure in CKD patients. DESIGN/

settingWe tested this hypothesis within the arterial compliance and oxidant stress as predictors of loss of renal function, morbidity and mortality in chronic kidney disease (ACADEMIC) study, a single-centre prospective observational study of the progression of arterial stiffness and renal function.

participantsOne hundred and forty-six patients with CKD 3 or 4. MEASUREMENTS: Twenty-four-hour ambulatory BP monitoring with postural sensing (DIASYS Integra 2, Novacor France); central systolic and diastolic BP (cSBP and cDBP) and aortic Augmentation Index using Sphygmocor

resultsTwenty-three patients had a postural SBP fall (prevalence 15.8%), with mean drop 7 mmHg. Patients with OH had higher cfPWV (15.2 m/s vs 12.7 m/s in patients without OH, p < 0.001) and central SBP (147.5 vs 135.7, p = 0.012). Regression analysis gave an odds ratio (OR) of orthostatic SBP fall for cfPWV of 1.46 (95% CI 1.16-1.84, p = 0.001) and 1.03 for cSBP (95% CI 1.004-1.06, p = 0.024) after adjustment for cardiovascular risk factors.

conclusionAortic stiffness and central SBP are independently associated with orthostatic SBP fall in CKD patients. This suggests that enhanced arterial stiffness may be an underlying mechanism in baroreflex dysfunction, and may partly explain the vascular risk in CKD patients.

Indexed as

AgedAged, 80 and overBlood PressureBlood Pressure Monitoring, AmbulatoryFemaleHumansHypotension, OrthostaticMaleMiddle AgedPrevalenceProspective StudiesPulse Wave AnalysisRenal Insufficiency, ChronicSystoleVascular StiffnessAortic stiffnessCentral blood pressureChronic kidney diseaseElderly MedicineOrthostatic hypotensionPulse wave velocity

Identifiers

PMID31598911
OpenAlexW2979793653

What OpenQuestion holds

Textmetadata
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.