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Congestive Heart Failure: Experimental Model

Overview of attention for article published in Frontiers in Pediatrics, January 2013
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Title
Congestive Heart Failure: Experimental Model
Published in
Frontiers in Pediatrics, January 2013
DOI 10.3389/fped.2013.00033
Pubmed ID
Authors

Antonio Francesco Corno, Xue Cai, Caroline B. Jones, Giuseppina Mondani, Mark R. Boyett, Jonathan Charles Jarvis, George Hart

Abstract

Introduction: Surgically induced, combined volume and pressure overload has been used in rabbits to create a simplified and reproducible model of acute left ventricular (LV) failure. Materials and Methods: New Zealand white male rabbits (n = 24, mean weight 3.1 ± 0.2 kg) were randomly assigned to either the Control group (n = 10) or to the Heart Failure group (HF, n = 14). Animals in the Control group underwent "sham" procedures. Animals in the HF group underwent procedures to induce LV volume overload by inducing severe aortic valve regurgitation with aortic cusp disruption and pressure overload using an occlusive silver clip positioned around the pre-renal abdominal aorta. Results: Following Procedure-1 (volume overload) echocardiography confirmed severe aortic regurgitation in all animals in the HF group, with increased mean pulse pressure difference from 18 ± 3 to 38 ± 3 mmHg (P < 0.0001). After Procedure-2 (pressure overload) all animals in the HF group showed clinical and echocardiographic signs of constriction of the abdominal aorta and echocardiography confirmed progressively declining LV function. At the end of the protocol there was a significant increase of the heart/body weight ratio in the HF group vs. Control group (4.6 ± 0.2 vs. 2.9 ± 0.1 g/kg, P < 0.05), and echocardiography showed in HF group significant increase of the LV end-diastolic diameter (2.15 ± 0.09 vs. 1.49 ± 0.03 cm, P < 0.001) and reduction of the LV shortening fraction (26.3 ± 3.8 vs. 41.3 ± 1.6%, P < 0.001). Conclusion: This experimental model: (a) consistently produces LV hypertrophy/dilatation and subsequent congestive heart failure, (b) provides new data on the time course of LV dilatation, hypertrophy and failure, (c) allows study of the progress and evolution of LV systolic and diastolic dysfunction in the presence of induced LV failure, (d) is suitable to study intervention or pharmacological administration to reduce the negative effects of acute LV failure.

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Mendeley readers

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Geographical breakdown

Country Count As %
Canada 1 10%
Unknown 9 90%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 3 30%
Student > Master 3 30%
Student > Ph. D. Student 2 20%
Researcher 1 10%
Unknown 1 10%
Readers by discipline Count As %
Medicine and Dentistry 5 50%
Economics, Econometrics and Finance 1 10%
Agricultural and Biological Sciences 1 10%
Unknown 3 30%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 29 October 2013.
All research outputs
#18,351,676
of 22,727,570 outputs
Outputs from Frontiers in Pediatrics
#3,304
of 5,895 outputs
Outputs of similar age
#218,074
of 280,760 outputs
Outputs of similar age from Frontiers in Pediatrics
#17
of 46 outputs
Altmetric has tracked 22,727,570 research outputs across all sources so far. This one is in the 11th percentile – i.e., 11% of other outputs scored the same or lower than it.
So far Altmetric has tracked 5,895 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.6. This one is in the 30th percentile – i.e., 30% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 280,760 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 11th percentile – i.e., 11% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 46 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 50% of its contemporaries.