Evidence map›Paper›PMID 16159967›Full record

Trial reportHeart (British Cardiac Society)2006

Comparative effects of valsartan and enalapril on cardiac sympathetic nerve activity and plasma brain natriuretic peptide in patients with congestive heart failure.

S Kasama, T Toyama, T Hatori, H Sumino, H Kumakura, Y Takayama, S Ichikawa, T Suzuki, M Kurabayashi

Open access · bronzeAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Heart (British Cardiac Society), 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 6% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Review
  6. Review
  7. Review
  8. Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2019
    Article
  9. Observational
  10. Article
  11. Article
  12. Article
  13. Response of cardiac sympathetic nerve activity to intravenous irbesartan in heart failure.American journal of physiology. Regulatory, integrative and comparative physiology · 2010
    Article
  14. Neuronal imaging using SPECT.European journal of nuclear medicine and molecular imaging · 2007
    Review
  15. Neuronal imaging using SPECT.European journal of nuclear medicine and molecular imaging · 2007
    Review
  16. Article
  17. 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.

S KasamaDepartment of Cardiovascular Medicine, Gunma University School of Medicine, Maebashi, Japan. s-kasama@bay.wind.ne.jp
T Toyama
T Hatori
H Sumino
H Kumakura
Y Takayama
S Ichikawa
T Suzuki
M Kurabayashi
Gunma University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the effects of valsartan on cardiac sympathetic nerve activity, plasma brain natriuretic peptide (BNP) concentration, cardiac function, and symptoms in patients with congestive heart failure (CHF) by comparison with those of enalapril.

methods50 patients with CHF (left ventricular ejection fraction (LVEF) < 40%) were randomly assigned to valsartan (80 mg/day; n = 25) or enalapril (5 mg/day; n = 25). All patients were also treated with a loop diuretic. The delayed heart to mediastinum count (H/M) ratio, delayed total defect score (TDS), and washout rate were determined from (123)I-meta-iodobenzylguanidine (MIBG) images. Plasma BNP concentrations were measured before and after six months of treatment. The left ventricular end diastolic volume (LVEDV) and LVEF were also determined by echocardiography.

resultsIn patients receiving valsartan, TDS decreased from a mean (SD) of 43 (8) to 39 (10) (p < 0.01), H/M ratio increased from 1.70 (0.17) to 1.78 (0.22) (p < 0.05), washout rate decreased from 46 (11)% to 41 (10)% (p < 0.05), and plasma BNP concentration decreased from 237 (180) pg/ml to 143 (93) pg/ml (p < 0.05). In addition, LVEDV decreased from 172 (42) ml to 151 (45) ml (p < 0.05) and LVEF increased from 31 (7)% to 39 (10)% (p < 0.001). However, these parameters did not change significantly in patients receiving enalapril.

conclusionPlasma BNP concentration and (123)I-MIBG scintigraphic and echocardiographic parameters improved significantly after six months of treatment with valsartan. These findings indicate that valsartan can improve cardiac sympathetic nerve activity and left ventricular performance in patients with CHF.

Indexed as

3-IodobenzylguanidineAdultAgedAged, 80 and overAngiotensin-Converting Enzyme InhibitorsEnalaprilFemaleHeartHeart FailureHumansMaleMediastinumMiddle AgedNatriuretic Peptide, BrainObserver VariationRadionuclide Imaging3-IodobenzylguanidineAngiotensin-Converting Enzyme InhibitorsEnalaprilNatriuretic Peptide, BrainRadiopharmaceuticalsTetrazolesValineValsartan

Identifiers

PMID16159967
PMCPMC1860905
OpenAlexW2141320635

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.