Evidence map›Paper›PMID 21146345›Full record

ArticleJournal of vascular surgery2011

Detrimental effects of mechanical stretch on smooth muscle function in saphenous veins.

Kyle M Hocking, Colleen Brophy, Syed Z Rizvi, Padmini Komalavilas, Susan Eagle, Marzia Leacche, Jorge M Balaguer, Joyce Cheung-Flynn

Open access · greenAbstract read
In one paragraph

Article in Journal of vascular surgery, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.0field-weighted citation impact, top 24% 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

24 citing papers in PubMed, 28 citations in OpenAlex.

  1. Association of papilledema severity with retinal vessel tortuosity in idiopathic intracranial hypertension.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
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  6. A cell permeant phosphopeptide mimetic of Niban inhibits p38 MAPK and restores endothelial function after injury.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
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  19. Arterial shear stress reduces eph-b4 expression in adult human veins.The Yale journal of biology and medicine · 2014
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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

8 authors at 2 institutions in 1 country.

Kyle M HockingDepartment of Surgery, Vanderbilt University Medical Center, Nashville, Tenn 37232-2735, USA.
Colleen Brophy
Syed Z Rizvi
Padmini Komalavilas
Susan Eagle
Marzia Leacche
Jorge M Balaguer
Joyce Cheung-Flynn
Vanderbilt University Medical Center · USVA Tennessee Valley Healthcare System · US

Funding

PREVENTION OF VEIN GRAFT SPASMR01HL070715 · NHLBI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BROPHY, COLLEEN M · 2003 to 2021
$7.2M
NHLBI NIH HHS R01 HL070715NHLBI NIH HHS R01HL70715
6 · The paper itself

Abstract

objectiveThis study evaluated the smooth muscle functional response and viability of human saphenous vein (HSV) grafts after harvest and explored the effect of mechanical stretch on contractile responses of porcine saphenous vein (PSV).

methodsThe contractile responses (stress, 10(5) N/m(2)) of deidentified, remnant HSV grafts to depolarizing potassium chloride and the agonist norepinephrine were measured in a muscle organ bath. Cellular viability was evaluated using a methyl thiazole tetrazolium (MTT) assay. A PSV model was used to evaluate the effect of radial, longitudinal, and angular stretch on smooth muscle contractile responses.

resultsContractile responses varied greatly in HSV harvested for autologous vascular and coronary bypass procedures (0.04198 ± 0.008128 × 10(5) N/m(2) to 0.1192 ± 0.02776 × 10(5) N/m(2)). Contractility of the HSV correlated with the cellular viability of the grafts. In the PSV model, manual radial distension of ≥ 300 mm Hg had no impact on the smooth muscle responses of PSV to potassium chloride. Longitudinal and angular stretch significantly decreased the contractile function of PSV by 33.16% and 15.26%, respectively (P < .03).

conclusionsThere is considerable variability in HSV harvested for use as an autologous conduit. Longitudinal and angular stretching during surgical harvest impairs contractile responsiveness of the smooth muscle in saphenous vein. Avoiding stretch-induced injuries to the conduits during harvest and preparation for implantation may reduce adverse biologic responses in the graft (eg, intimal hyperplasia) and improve patency of autologous vein graft bypasses.

Indexed as

Mechanotransduction, CellularVasoconstrictionAnimalsHumansIn Vitro TechniquesMuscle, Smooth, VascularPressoreceptorsPressureSaphenous VeinSwineTissue and Organ HarvestingTissue SurvivalVasoconstrictor AgentsVasoconstrictor Agents

Identifiers

PMID21146345
PMCPMC3053010
OpenAlexW2053705978

What OpenQuestion holds

Textmetadata
LicenceTDM
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.