Tourniquet application after local forearm warming to improve venodilation for peripheral intravenous cannulation in young and middle-aged adults: A single-blind prospective randomized controlled trial

Local forearm warming before tourniquet application is often used to promote venodilation for peripheral intravenous cannulation; however, few studies have compared the effect of tourniquet application with and without local warming on vein size. To evaluate the effectiveness of tourniquet applicati...

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Veröffentlicht in:International journal of nursing studies 2017-07, Vol.72, p.1-7
Hauptverfasser: Yamagami, Yuki, Tomita, Kohei, Tsujimoto, Tomomi, Inoue, Tomoko
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Tomita, Kohei
Tsujimoto, Tomomi
Inoue, Tomoko
description Local forearm warming before tourniquet application is often used to promote venodilation for peripheral intravenous cannulation; however, few studies have compared the effect of tourniquet application with and without local warming on vein size. To evaluate the effectiveness of tourniquet application after local forearm warming with that of tourniquet application alone in young and middle-aged adults. A single-blind, prospective, parallel group, randomized controlled trial. A national university in Japan. Seventy-two volunteers aged 20–64 years. Participants were randomly allocated to one of two groups: tourniquet application for 30s after forearm application of a heat pack warmed to 40°C±2°C for 15min (active warming group; n=36) or tourniquet application for 30s after applying a non-warmed heat pack for 15min (passive warming group; n=36). The primary outcomes were vein cross-sectional area on the forearm, measured after the intervention by blinded research assistants using ultrasound. Secondary outcomes were shortest diameter, and longest diameter of vein on the forearm, forearm skin temperature, body temperature, pulse, systolic blood pressure, and diastolic blood pressure. All outcomes were assessed at the same site before and immediately after the intervention, once per participant. Vein cross-sectional area, shortest vein diameter, and longest vein diameter were significantly increased in the active warming group compared with the passive warming group (p
doi_str_mv 10.1016/j.ijnurstu.2017.03.009
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To evaluate the effectiveness of tourniquet application after local forearm warming with that of tourniquet application alone in young and middle-aged adults. A single-blind, prospective, parallel group, randomized controlled trial. A national university in Japan. Seventy-two volunteers aged 20–64 years. Participants were randomly allocated to one of two groups: tourniquet application for 30s after forearm application of a heat pack warmed to 40°C±2°C for 15min (active warming group; n=36) or tourniquet application for 30s after applying a non-warmed heat pack for 15min (passive warming group; n=36). The primary outcomes were vein cross-sectional area on the forearm, measured after the intervention by blinded research assistants using ultrasound. Secondary outcomes were shortest diameter, and longest diameter of vein on the forearm, forearm skin temperature, body temperature, pulse, systolic blood pressure, and diastolic blood pressure. All outcomes were assessed at the same site before and immediately after the intervention, once per participant. Vein cross-sectional area, shortest vein diameter, and longest vein diameter were significantly increased in the active warming group compared with the passive warming group (p &lt;0.01). Tourniquet application after local warming was superior to tourniquet application alone in increasing vein cross-sectional, shortest diameter, and longest diameter (between-group differences of 2.2mm2, 0.5mm, and 0.5mm, respectively), and in raising skin temperature (between-group difference: 5.2°C). However, there were no significant differences in body temperature, pulse, or systolic or diastolic blood pressure between the groups. There were no adverse events associated with either intervention. Tourniquet application after local warming was associated with increased forearm vein size when compared with tourniquet application alone, and was demonstrated as being safe. 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Abstracts (ASSIA)</collection><collection>British Nursing Index</collection><collection>British Nursing Index (BNI) (1985 to Present)</collection><collection>British Nursing Index</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>MEDLINE - Academic</collection><jtitle>International journal of nursing studies</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yamagami, Yuki</au><au>Tomita, Kohei</au><au>Tsujimoto, Tomomi</au><au>Inoue, Tomoko</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Tourniquet application after local forearm warming to improve venodilation for peripheral intravenous cannulation in young and middle-aged adults: A single-blind prospective randomized controlled trial</atitle><jtitle>International journal of nursing studies</jtitle><addtitle>Int J Nurs Stud</addtitle><date>2017-07</date><risdate>2017</risdate><volume>72</volume><spage>1</spage><epage>7</epage><pages>1-7</pages><issn>0020-7489</issn><eissn>1873-491X</eissn><abstract>Local forearm warming before tourniquet application is often used to promote venodilation for peripheral intravenous cannulation; however, few studies have compared the effect of tourniquet application with and without local warming on vein size. To evaluate the effectiveness of tourniquet application after local forearm warming with that of tourniquet application alone in young and middle-aged adults. A single-blind, prospective, parallel group, randomized controlled trial. A national university in Japan. Seventy-two volunteers aged 20–64 years. Participants were randomly allocated to one of two groups: tourniquet application for 30s after forearm application of a heat pack warmed to 40°C±2°C for 15min (active warming group; n=36) or tourniquet application for 30s after applying a non-warmed heat pack for 15min (passive warming group; n=36). The primary outcomes were vein cross-sectional area on the forearm, measured after the intervention by blinded research assistants using ultrasound. Secondary outcomes were shortest diameter, and longest diameter of vein on the forearm, forearm skin temperature, body temperature, pulse, systolic blood pressure, and diastolic blood pressure. All outcomes were assessed at the same site before and immediately after the intervention, once per participant. Vein cross-sectional area, shortest vein diameter, and longest vein diameter were significantly increased in the active warming group compared with the passive warming group (p &lt;0.01). Tourniquet application after local warming was superior to tourniquet application alone in increasing vein cross-sectional, shortest diameter, and longest diameter (between-group differences of 2.2mm2, 0.5mm, and 0.5mm, respectively), and in raising skin temperature (between-group difference: 5.2°C). However, there were no significant differences in body temperature, pulse, or systolic or diastolic blood pressure between the groups. There were no adverse events associated with either intervention. Tourniquet application after local warming was associated with increased forearm vein size when compared with tourniquet application alone, and was demonstrated as being safe. Thus, with demonstrable effects on vein size, we recommend local warming before tourniquet application as a safe and effective technique for improving venodilation.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>28410510</pmid><doi>10.1016/j.ijnurstu.2017.03.009</doi><tpages>7</tpages></addata></record>
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source MEDLINE; Applied Social Sciences Index & Abstracts (ASSIA); Access via ScienceDirect (Elsevier)
subjects Adult
Adults
Application
Blood pressure
Body temperature
Catheterization
Clinical trials
Critical incidents
Evidence-based
Evidence-based nursing
Female
Forearm
Heating
Hot Temperature
Humans
Infusions, Intravenous - methods
Injections
Intervention
Intravenous
Intubation
Japan
Male
Medical equipment
Medical practice
Middle age
Middle Aged
Nursing
Nursing practice
Peripheral
Prospective Studies
Randomized controlled trials
Single-Blind Method
Tourniquets
Ultrasonography
Vasodilation
Volunteers
Warming techniques
Young Adult
title Tourniquet application after local forearm warming to improve venodilation for peripheral intravenous cannulation in young and middle-aged adults: A single-blind prospective randomized controlled trial
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