Trial reportJournal of human hypertension2014
Effect of supine versus sitting position on noninvasive assessment of aortic pressure waveform: a randomized cross-over study.
Trial report in Journal of human hypertension, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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.
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.
Who cites it
9 citing papers in PubMed, 28 citations in OpenAlex.
- Neurobiological and Anti-Inflammatory Effects of a Deep Diaphragmatic Breathing Technique Based on Neofunctional Psychotherapy: A Pilot RCT.Stress and health : journal of the International Society for the Investigation of Stress · 2024Trial
- Dexmedetomidine-enhanced chest wall fascial plane blocks in ultra-fast-track minimally invasive heart valve surgery: a randomized controlled trial.Perioperative medicine (London, England) · 2025Article
- Facilitated Intubation: Time to Re-examine an Old Technique With Its Associated Risks Mitigated by New Technology.Cureus · 2023Article
- Insight into the 24-hour ambulatory central blood pressure in adolescents and young adults.Journal of clinical hypertension (Greenwich, Conn.) · 2020Article
- Diurnal changes in central blood pressure and pulse pressure amplification in patients with obstructive sleep apnoea.International Journal of Cardiology. Hypertension · 2019Article
- Determinants of pulse wave velocity trajectories from youth to young adulthood: the Georgia Stress and Heart Study.Journal of hypertension · 2019Article
- Postural Changes in Measures of Arterial Stiffness in Hypertensive Subjects on Antihypertensive Drug Therapy: A Prospective, Pilot Study.The International journal of angiology : official publication of the International College of Angiology, Inc · 2017Article
- The diagnostic value of supine blood pressure in hypertension.Archives of medical science : AMS · 2016Article
- Evaluation of 24-Hour Arterial Stiffness Indices and Central Hemodynamics in Healthy Normotensive Subjects versus Treated or Untreated Hypertensive Patients: A Feasibility Study.International journal of hypertension · 2015Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 6 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Biomarkers derived noninvasively from the aortic blood pressure (BP) waveform provide information regarding cardiovascular (CV) risk independently of brachial BP (bBP). Although body position has significant impact on the assessment of bBP, its effect on aortic hemodynamics remains unknown. This study investigated the changes in both brachial and aortic hemodynamics, between the supine and sitting position. In this randomized cross-over study, the bBP and the aortic pressure waveform were assessed after a 5 min rest (sitting and supine in randomized order); aortic BP, pulse pressure (PP) amplification, augmentation index (AIx) and subendocardial viability index (SEVR) were assessed. Sixty-one subjects were examined (36 males, mean age 50±12 years). Mean BP did not differ between the sitting and supine position (110.8±13.7 vs 110.9±14.9, respectively, P=0.945). However, significant difference between the sitting and supine position in brachial PP (45.9±16.0 vs 52.6±15.6, respectively, P<0.001), aortic PP (36.7±15.2 vs 43.1±13.9, P<0.001), PP amplification (1.28±0.1 vs 1.23±0.1, P<0.001), AIx (26.9±11.9 vs 31.1±10.2, P<0.001) and SEVR (179.6±25.7 vs 161.2±25.8, P<0.001) were found. Review of the literature identified underestimation of the role of body position on aortic hemodynamics. In conclusion, increased PP in both the aorta and brachial artery were found in the supine compared to the sitting position. Reduced PP amplification and SEVR were further observed in the supine position, due to increased pressure wave reflections (AIx).
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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 Socratic graph.