Risk factors for hypothermia in patients under general anesthesia: Is there a drawback of laminar airflow operating rooms? A prospective cohort study

Yang, Lu; Huang, Chanyan; Zhou, Zhi‐Bin; Wen, Zhishuang; Zhang, Guan-Rong; Liu, Ke-Xuan; Huang, Wenqi

doi:10.1016/j.ijsu.2015.06.079

Cited by 32 publications

(34 citation statements)

References 25 publications

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“…By directing the clean incoming airflows strategically, there is potential to lower the airflow rates, leading to energy savings that are beneficial for both the hospital's economy and the environment. Another possible advantage of using lower airflows in the OR is that this may reduce the cooling effect and thus decrease the risk for patient hypothermia, which has been shown to be a risk factor for SSI [15].…”

Section: Discussionmentioning

confidence: 99%

Temperature-controlled airflow ventilation in operating rooms compared with laminar airflow and turbulent mixed airflow

Alsved

Civilis

Ekolind³

et al. 2018

Journal of Hospital Infection

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Section: Discussionmentioning

confidence: 99%

Temperature-controlled airflow ventilation in operating rooms compared with laminar airflow and turbulent mixed airflow

Alsved

Civilis

Ekolind³

et al. 2018

Journal of Hospital Infection

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“…A recent study found that the odds of becoming hypothermic were 1·53 (95% CI 1·19-1·96) for patients whose procedures were done in LAF rooms compared with patients whose procedures were done in traditional ORs. 54 Prior cost-effectiveness analyses found LAF to be more expensive than conventional ventilation systems. An Italian study 55 found that building costs increased 24% and annual operating costs increased 36%.…”

Section: Discussionmentioning

confidence: 99%

Effect of laminar airflow ventilation on surgical site infections: a systematic review and meta-analysis

Bischoff

Kubilay

Allegranzi

et al. 2017

The Lancet Infectious Diseases

156

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Background: The role of the operating room's (OR) ventilation system in the prevention of surgical site infection (SSI) is widely discussed and the existing guidelines do not reflect the current evidence. In this context, laminar airflow (LAF) ventilation was compared with conventional ventilation to assess their effectiveness in reducing the risk of SSI.Methods: Medline, EMBASE, Cochrane Central Register of Controlled Trials and WHO regional medical databases were searched from 1990 to 31 January 2014. The search was updated for Medline for the time period between 1 February 2014 and 27 May 2016. GRADE methodology was used to assess the quality of the retrieved evidence. Meta-analyses of available comparisons were performed using RevMan 5.3. Findings: The search identified 1947 records of which 12 observational studies were identified comparing LAF ventilation with conventional turbulent ventilation in orthopedic, abdominal, and vascular surgery. The meta-analysis of eight cohort studies showed no difference in risk for deep SSIs following total hip arthroplasty (THA, 330 146 procedures; odds ratio (OR) 1·29, 95% CI 0·98-1·71, p=0·07; I²=83%). For total knee arthroplasty (TKA, 134 368 procedures) the meta-analysis of six cohort studies showed no difference in risk for deep SSIs (OR 1·08, 95% CI 0·77-1·52, p=0·65; I²=71%). For abdominal and open vascular surgery the metaanalysis of three cohort studies found no difference in risk for overall SSI (OR 0·75, 95% CI 0·43-1·33, p=0·33; I²=95%) Interpretation: The available evidence shows no benefit for LAF compared with conventional turbulent OR ventilation in reducing the risk of SSI in THA, TKA and abdominal surgery. Decision makers, medical and administrative, should not choose to install and use LAF equipped ORs as a preventive measure to reduce the risk of SSI. AbstractBackground: The role of the operating room's (OR) ventilation system in the prevention of surgical site infection (SSI) is widely discussed and the existing guidelines do not reflect the current evidence. In this context, laminar airflow (LAF) ventilation was compared with conventional ventilation to assess their effectiveness in reducing the risk of SSI.

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“…在大型楼宇建筑里, 在冷却塔水中检测到军团菌 [46] . 研究还发现, 在医院环境内, 在烧伤护理病房或ICU中不同过程产生的传染性气溶胶会导致交叉感染 [47,48] ; 使用氧气面罩、牙科的电动设备以及手术过程也会有空气污染的风险 [49,50] . 此外, 废水的飞溅以及家庭卫生间的冲水, 都有可能导致病原体的空气传播 [51,52] .…”

Section: 一定影响室内微生物的浓度大概至少是室外的10unclassified

Bioaerosol research: Yesterday, today and tomorrow

Zheng¹,

Li²,

Chen³

et al. 2018

Chin. Sci. Bull.

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Risk factors for hypothermia in patients under general anesthesia: Is there a drawback of laminar airflow operating rooms? A prospective cohort study

Abstract: Intraoperative hypothermia is still common and should therefore receive serious attention. Advanced age, the use of a laminar airflow operating room and general surgeries are high risk factors of hypothermia.

Cited by 32 publications

References 25 publications

Temperature-controlled airflow ventilation in operating rooms compared with laminar airflow and turbulent mixed airflow

Temperature-controlled airflow ventilation in operating rooms compared with laminar airflow and turbulent mixed airflow

Effect of laminar airflow ventilation on surgical site infections: a systematic review and meta-analysis

Bioaerosol research: Yesterday, today and tomorrow

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