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Dual phosphodiesterase type 5 inhibitor therapy for refractory pulmonary arterial hypertension: a pilot study

Overview of attention for article published in BMC Pulmonary Medicine, May 2015
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Title
Dual phosphodiesterase type 5 inhibitor therapy for refractory pulmonary arterial hypertension: a pilot study
Published in
BMC Pulmonary Medicine, May 2015
DOI 10.1186/s12890-015-0037-8
Pubmed ID
Authors

Mai Kimura, Yuichi Tamura, Makoto Takei, Tsunehisa Yamamoto, Tomohiko Ono, Jun Fujita, Masaharu Kataoka, Masataka Kuwana, Toru Satoh, Keiichi Fukuda

Abstract

Recent vasodilating drugs have improved prognosis of Pulmonary arterial hypertension (PAH). Some reports describe the merits of combination therapies for PAH, and this study evaluated the efficacy and safety of phosphodiesterase type 5 inhibitors (PDE5i) combination therapy, using sildenafil and tadalafil, for multi-drug-resistant PAH. We retrospectively analyzed 7 consecutive refractory patients with PAH administered either sildenafil 60 mg or tadalafil 40 mg as well as both ERA and prostanoid as combination therapies. All were started on the dual PDE5i (sildenafil and tadalafil at maximum dose). Treatment was generally well tolerated without severe adverse events. On completion of the study, the seven patients received right heart catheterization and the 6-minute walk test (6WMT) 9.6 ± 1.4 months after initiation of the dual PDE5i therapy, showing significant improvements in hemodynamic parameters and exercise tolerance. Mean pulmonary arterial pressure and pulmonary vascular resistance decreased from 47.9 ± 9.7 to 41.7 ± 9.2 mmHg (P = 0.004) and 9.3 ± 2.7 to 6.7 ± 2.9 mmHg (P = 0.018), respectively. Cardiac index and 6MWT also increased from 2.8 ± 0.9 to 3.1 ± 0.8 L/min/m(2) (P = 0.026) and 353 ± 60 to 382 ± 62 m (P = 0.014), respectively. The findings support dual PDE5i therapy as a new treatment option for refractory PAH.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 34 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 34 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 8 24%
Researcher 4 12%
Student > Bachelor 3 9%
Other 2 6%
Student > Postgraduate 2 6%
Other 7 21%
Unknown 8 24%
Readers by discipline Count As %
Medicine and Dentistry 20 59%
Pharmacology, Toxicology and Pharmaceutical Science 1 3%
Biochemistry, Genetics and Molecular Biology 1 3%
Computer Science 1 3%
Business, Management and Accounting 1 3%
Other 2 6%
Unknown 8 24%
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 21 July 2016.
All research outputs
#17,761,927
of 22,811,321 outputs
Outputs from BMC Pulmonary Medicine
#1,253
of 1,911 outputs
Outputs of similar age
#179,397
of 264,420 outputs
Outputs of similar age from BMC Pulmonary Medicine
#24
of 33 outputs
Altmetric has tracked 22,811,321 research outputs across all sources so far. This one is in the 19th percentile – i.e., 19% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,911 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.4. This one is in the 28th percentile – i.e., 28% 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 264,420 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 27th percentile – i.e., 27% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 33 others from the same source and published within six weeks on either side of this one. This one is in the 15th percentile – i.e., 15% of its contemporaries scored the same or lower than it.