Temperature-controlled airflow ventilation in operating rooms compared with laminar airflow and turbulent mixed airflow
To evaluate three types of ventilation systems for operating rooms with respect to air cleanliness [in colony-forming units (cfu/m3)], energy consumption and comfort of working environment (noise and draught) as reported by surgical team members. Two commonly used ventilation systems, vertical lamin...
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| Veröffentlicht in: | The Journal of hospital infection 2018-02, Vol.98 (2), p.181-190 |
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| creator | Alsved, M. Civilis, A. Ekolind, P. Tammelin, A. Andersson, A. Erichsen Jakobsson, J. Svensson, T. Ramstorp, M. Sadrizadeh, S. Larsson, P-A. Bohgard, M. Šantl-Temkiv, T. Löndahl, J. |
| description | To evaluate three types of ventilation systems for operating rooms with respect to air cleanliness [in colony-forming units (cfu/m3)], energy consumption and comfort of working environment (noise and draught) as reported by surgical team members.
Two commonly used ventilation systems, vertical laminar airflow (LAF) and turbulent mixed airflow (TMA), were compared with a newly developed ventilation technique, temperature-controlled airflow (TcAF). The cfu concentrations were measured at three locations in an operating room during 45 orthopaedic procedures: close to the wound ( |
| doi_str_mv | 10.1016/j.jhin.2017.10.013 |
| format | Article |
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Two commonly used ventilation systems, vertical laminar airflow (LAF) and turbulent mixed airflow (TMA), were compared with a newly developed ventilation technique, temperature-controlled airflow (TcAF). The cfu concentrations were measured at three locations in an operating room during 45 orthopaedic procedures: close to the wound (<40cm), at the instrument table and peripherally in the room. The operating team evaluated the comfort of the working environment by answering a questionnaire.
LAF and TcAF, but not TMA, resulted in less than 10cfu/m3 at all measurement locations in the room during surgery. Median values of cfu/m3 close to the wound (250 samples) were 0 for LAF, 1 for TcAF and 10 for TMA. Peripherally in the room, the cfu concentrations were lowest for TcAF. The cfu concentrations did not scale proportionally with airflow rates. Compared with LAF, the power consumption of TcAF was 28% lower and there was significantly less disturbance from noise and draught.
TcAF and LAF remove bacteria more efficiently from the air than TMA, especially close to the wound and at the instrument table. Like LAF, the new TcAF ventilation system maintained very low levels of cfu in the air, but TcAF used substantially less energy and provided a more comfortable working environment than LAF. This enables energy savings with preserved air quality.</description><identifier>ISSN: 0195-6701</identifier><identifier>ISSN: 1532-2939</identifier><identifier>EISSN: 1532-2939</identifier><identifier>DOI: 10.1016/j.jhin.2017.10.013</identifier><identifier>PMID: 29074054</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Air sampling ; Annan medicin och hälsovetenskap ; BioTrak ; Energy efficiency ; Engineering and Technology ; Fluorescence ; Health Sciences ; Hälsovetenskaper ; Medical Engineering ; Medical Ergonomics ; Medicinsk ergonomi ; Medicinteknik ; Other Medical Sciences ; Surgical site infection ; Teknik ; Temperature-controlled ; Temperature-controlled ventilation ; ventilation</subject><ispartof>The Journal of hospital infection, 2018-02, Vol.98 (2), p.181-190</ispartof><rights>2017 The Authors</rights><rights>Copyright © 2017 The Authors. Published by Elsevier Ltd.. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c583t-41ea556c7ad2cef270e457038c6d43e3f5a8ffc26f5a5f9eadc1ed0764ddff593</citedby><cites>FETCH-LOGICAL-c583t-41ea556c7ad2cef270e457038c6d43e3f5a8ffc26f5a5f9eadc1ed0764ddff593</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0195670117305790$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>230,314,550,776,780,881,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29074054$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-223799$$DView record from Swedish Publication Index$$Hfree_for_read</backlink><backlink>$$Uhttps://gup.ub.gu.se/publication/261690$$DView record from Swedish Publication Index$$Hfree_for_read</backlink><backlink>$$Uhttps://lup.lub.lu.se/record/529a24d2-f826-4504-9177-6f399f982346$$DView record from Swedish Publication Index$$Hfree_for_read</backlink><backlink>$$Uhttp://kipublications.ki.se/Default.aspx?queryparsed=id:137657997$$DView record from Swedish Publication Index$$Hfree_for_read</backlink></links><search><creatorcontrib>Alsved, M.</creatorcontrib><creatorcontrib>Civilis, A.</creatorcontrib><creatorcontrib>Ekolind, P.</creatorcontrib><creatorcontrib>Tammelin, A.</creatorcontrib><creatorcontrib>Andersson, A. Erichsen</creatorcontrib><creatorcontrib>Jakobsson, J.</creatorcontrib><creatorcontrib>Svensson, T.</creatorcontrib><creatorcontrib>Ramstorp, M.</creatorcontrib><creatorcontrib>Sadrizadeh, S.</creatorcontrib><creatorcontrib>Larsson, P-A.</creatorcontrib><creatorcontrib>Bohgard, M.</creatorcontrib><creatorcontrib>Šantl-Temkiv, T.</creatorcontrib><creatorcontrib>Löndahl, J.</creatorcontrib><title>Temperature-controlled airflow ventilation in operating rooms compared with laminar airflow and turbulent mixed airflow</title><title>The Journal of hospital infection</title><addtitle>J Hosp Infect</addtitle><description>To evaluate three types of ventilation systems for operating rooms with respect to air cleanliness [in colony-forming units (cfu/m3)], energy consumption and comfort of working environment (noise and draught) as reported by surgical team members.
Two commonly used ventilation systems, vertical laminar airflow (LAF) and turbulent mixed airflow (TMA), were compared with a newly developed ventilation technique, temperature-controlled airflow (TcAF). The cfu concentrations were measured at three locations in an operating room during 45 orthopaedic procedures: close to the wound (<40cm), at the instrument table and peripherally in the room. The operating team evaluated the comfort of the working environment by answering a questionnaire.
LAF and TcAF, but not TMA, resulted in less than 10cfu/m3 at all measurement locations in the room during surgery. Median values of cfu/m3 close to the wound (250 samples) were 0 for LAF, 1 for TcAF and 10 for TMA. Peripherally in the room, the cfu concentrations were lowest for TcAF. The cfu concentrations did not scale proportionally with airflow rates. Compared with LAF, the power consumption of TcAF was 28% lower and there was significantly less disturbance from noise and draught.
TcAF and LAF remove bacteria more efficiently from the air than TMA, especially close to the wound and at the instrument table. Like LAF, the new TcAF ventilation system maintained very low levels of cfu in the air, but TcAF used substantially less energy and provided a more comfortable working environment than LAF. This enables energy savings with preserved air quality.</description><subject>Air sampling</subject><subject>Annan medicin och hälsovetenskap</subject><subject>BioTrak</subject><subject>Energy efficiency</subject><subject>Engineering and Technology</subject><subject>Fluorescence</subject><subject>Health Sciences</subject><subject>Hälsovetenskaper</subject><subject>Medical Engineering</subject><subject>Medical Ergonomics</subject><subject>Medicinsk ergonomi</subject><subject>Medicinteknik</subject><subject>Other Medical Sciences</subject><subject>Surgical site infection</subject><subject>Teknik</subject><subject>Temperature-controlled</subject><subject>Temperature-controlled ventilation</subject><subject>ventilation</subject><issn>0195-6701</issn><issn>1532-2939</issn><issn>1532-2939</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>D8T</sourceid><recordid>eNp9ks2O0zAYRSMEYsrAC7BAWbJJ8b9ric1o-JUqsRnYWq79uXUniYOTTIGn6bP0yXCmnWFFF1asq3NPFOUWxWuM5hhh8W47325COycIyxzMEaZPihnmlFREUfW0mCGseCUkwhfFi77fIoRyzp8XF0QhyRBns-LPDTQdJDOMCSob2yHFugZXmpB8HXflHbRDqM0QYluG9rCP93Bo12WKselLG5vOpFzYhWFT1qYJrUkP7cPetO6wz-7VWGdR2YRf_9wvi2fe1D28Oj0vi--fPt5cf6mW3z5_vb5aVpYv6FAxDIZzYaVxxIInEgHjEtGFFY5RoJ6bhfeWiHzhXoFxFoNDUjDnvOeKXhbV0dvvoBtXukuhMem3jiboU3Sbb6CZoojLzC__y9djl88qn6nAiTKEOaL9ggjNOGJaYSm18FQprxaEMnH29eusy9H63kYEFgqd5T-EH1c6prW-HTaaECrV9Hlvj3yX4s8R-kE3obdQ16aFOPY6b0AyKamYUHJEbYp9n8A_yjHS06T0Vk-T0tOkpixPKpfenPzjqgH3WHnYUAbeHwHIP_EuQNK9DdBacCGBHbSL4Zz_L9q14-w</recordid><startdate>20180201</startdate><enddate>20180201</enddate><creator>Alsved, M.</creator><creator>Civilis, A.</creator><creator>Ekolind, P.</creator><creator>Tammelin, A.</creator><creator>Andersson, A. Erichsen</creator><creator>Jakobsson, J.</creator><creator>Svensson, T.</creator><creator>Ramstorp, M.</creator><creator>Sadrizadeh, S.</creator><creator>Larsson, P-A.</creator><creator>Bohgard, M.</creator><creator>Šantl-Temkiv, T.</creator><creator>Löndahl, J.</creator><general>Elsevier Ltd</general><scope>6I.</scope><scope>AAFTH</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>ADTPV</scope><scope>AFDQA</scope><scope>AOWAS</scope><scope>D8T</scope><scope>D8V</scope><scope>ZZAVC</scope><scope>F1U</scope><scope>AGCHP</scope><scope>D95</scope></search><sort><creationdate>20180201</creationdate><title>Temperature-controlled airflow ventilation in operating rooms compared with laminar airflow and turbulent mixed airflow</title><author>Alsved, M. ; Civilis, A. ; Ekolind, P. ; Tammelin, A. ; Andersson, A. Erichsen ; Jakobsson, J. ; Svensson, T. ; Ramstorp, M. ; Sadrizadeh, S. ; Larsson, P-A. ; Bohgard, M. ; Šantl-Temkiv, T. ; Löndahl, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c583t-41ea556c7ad2cef270e457038c6d43e3f5a8ffc26f5a5f9eadc1ed0764ddff593</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Air sampling</topic><topic>Annan medicin och hälsovetenskap</topic><topic>BioTrak</topic><topic>Energy efficiency</topic><topic>Engineering and Technology</topic><topic>Fluorescence</topic><topic>Health Sciences</topic><topic>Hälsovetenskaper</topic><topic>Medical Engineering</topic><topic>Medical Ergonomics</topic><topic>Medicinsk ergonomi</topic><topic>Medicinteknik</topic><topic>Other Medical Sciences</topic><topic>Surgical site infection</topic><topic>Teknik</topic><topic>Temperature-controlled</topic><topic>Temperature-controlled ventilation</topic><topic>ventilation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Alsved, M.</creatorcontrib><creatorcontrib>Civilis, A.</creatorcontrib><creatorcontrib>Ekolind, P.</creatorcontrib><creatorcontrib>Tammelin, A.</creatorcontrib><creatorcontrib>Andersson, A. Erichsen</creatorcontrib><creatorcontrib>Jakobsson, J.</creatorcontrib><creatorcontrib>Svensson, T.</creatorcontrib><creatorcontrib>Ramstorp, M.</creatorcontrib><creatorcontrib>Sadrizadeh, S.</creatorcontrib><creatorcontrib>Larsson, P-A.</creatorcontrib><creatorcontrib>Bohgard, M.</creatorcontrib><creatorcontrib>Šantl-Temkiv, T.</creatorcontrib><creatorcontrib>Löndahl, J.</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>SwePub</collection><collection>SWEPUB Kungliga Tekniska Högskolan full text</collection><collection>SwePub Articles</collection><collection>SWEPUB Freely available online</collection><collection>SWEPUB Kungliga Tekniska Högskolan</collection><collection>SwePub Articles full text</collection><collection>SWEPUB Göteborgs universitet</collection><collection>SWEPUB Lunds universitet full text</collection><collection>SWEPUB Lunds universitet</collection><jtitle>The Journal of hospital infection</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Alsved, M.</au><au>Civilis, A.</au><au>Ekolind, P.</au><au>Tammelin, A.</au><au>Andersson, A. Erichsen</au><au>Jakobsson, J.</au><au>Svensson, T.</au><au>Ramstorp, M.</au><au>Sadrizadeh, S.</au><au>Larsson, P-A.</au><au>Bohgard, M.</au><au>Šantl-Temkiv, T.</au><au>Löndahl, J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Temperature-controlled airflow ventilation in operating rooms compared with laminar airflow and turbulent mixed airflow</atitle><jtitle>The Journal of hospital infection</jtitle><addtitle>J Hosp Infect</addtitle><date>2018-02-01</date><risdate>2018</risdate><volume>98</volume><issue>2</issue><spage>181</spage><epage>190</epage><pages>181-190</pages><issn>0195-6701</issn><issn>1532-2939</issn><eissn>1532-2939</eissn><abstract>To evaluate three types of ventilation systems for operating rooms with respect to air cleanliness [in colony-forming units (cfu/m3)], energy consumption and comfort of working environment (noise and draught) as reported by surgical team members.
Two commonly used ventilation systems, vertical laminar airflow (LAF) and turbulent mixed airflow (TMA), were compared with a newly developed ventilation technique, temperature-controlled airflow (TcAF). The cfu concentrations were measured at three locations in an operating room during 45 orthopaedic procedures: close to the wound (<40cm), at the instrument table and peripherally in the room. The operating team evaluated the comfort of the working environment by answering a questionnaire.
LAF and TcAF, but not TMA, resulted in less than 10cfu/m3 at all measurement locations in the room during surgery. Median values of cfu/m3 close to the wound (250 samples) were 0 for LAF, 1 for TcAF and 10 for TMA. Peripherally in the room, the cfu concentrations were lowest for TcAF. The cfu concentrations did not scale proportionally with airflow rates. Compared with LAF, the power consumption of TcAF was 28% lower and there was significantly less disturbance from noise and draught.
TcAF and LAF remove bacteria more efficiently from the air than TMA, especially close to the wound and at the instrument table. Like LAF, the new TcAF ventilation system maintained very low levels of cfu in the air, but TcAF used substantially less energy and provided a more comfortable working environment than LAF. This enables energy savings with preserved air quality.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>29074054</pmid><doi>10.1016/j.jhin.2017.10.013</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0195-6701 |
| ispartof | The Journal of hospital infection, 2018-02, Vol.98 (2), p.181-190 |
| issn | 0195-6701 1532-2939 1532-2939 |
| language | eng |
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| source | Elsevier ScienceDirect Journals; SWEPUB Freely available online |
| subjects | Air sampling Annan medicin och hälsovetenskap BioTrak Energy efficiency Engineering and Technology Fluorescence Health Sciences Hälsovetenskaper Medical Engineering Medical Ergonomics Medicinsk ergonomi Medicinteknik Other Medical Sciences Surgical site infection Teknik Temperature-controlled Temperature-controlled ventilation ventilation |
| title | Temperature-controlled airflow ventilation in operating rooms compared with laminar airflow and turbulent mixed airflow |
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