Abstract:
BACKGROUND:Intraoperative bacterial contamination is a major risk factor for postoperative wound infections. This study investigated the influence of type of ventilation system on intraoperative airborne bacterial burden before and after installation of unidirectional displacement air flow systems. MATERIAL AND METHODS:We microbiologically monitored 1286 surgeries performed by a single surgical team that moved from operating rooms (ORs) equipped with turbulent mixing ventilation (TMV, according to standard DIN-1946-4 [1999], ORs 1, 2, and 3) to ORs with unidirectional displacement airflow (UDF, according to standard DIN-1946-4, annex D [2008], ORs 7 and 8). The airborne bacteria were collected intraoperatively with sedimentation plates. After incubation for 48 h, we analyzed the average number of bacteria per h, peak values, and correlation to surgery duration. In addition, we compared the last 138 surgeries in ORs 1-3 with the first 138 surgeries in ORs 7 and 8. RESULTS:Intraoperative airborne bacterial burden was 5.4 CFU/h, 5.5 CFU/h, and 6.1 CFU/h in ORs 1, 2, and 3, respectively. Peak values of burden were 10.7 CFU/h, 11.1 CFU/h, and 11.0 CFU/h in ORs 1, 2, and 3, respectively). With the UDF system, the intraoperative airborne bacterial burden was reduced to 0.21 CFU/h (OR 7) and 0.35 CFU/h (OR 8) on average (p<0.01). Accordingly, peak values decreased to 0.9 CFU/h and 1.0 CFU/h in ORs 7 and 8, respectively (p<0.01). Airborne bacterial burden increased linearly with surgery duration in ORs 1-3, but the UDF system in ORs 7 and 8 kept bacterial levels constantly low (<3 CFU/h). A comparison of the last 138 surgeries before with the first 138 surgeries after changing ORs revealed a 94% reduction in average airborne bacterial burden (5 CFU/h vs. 0.29 CFU/h, p<0.01). CONCLUSIONS:The unidirectional displacement airflow, which fulfills the requirements of standard DIN-1946-4 annex D of 2008, is an effective ventilation system that reduces airborne bacterial burden under real clinical conditions by more than 90%. Although decreased postoperative wound infection incidence was not specifically assessed, it is clear that airborne microbiological burden contributes to surgical infections.
journal_name
Med Sci Monitjournal_title
Medical science monitor : international medical journal of experimental and clinical researchauthors
Fischer S,Thieves M,Hirsch T,Fischer KD,Hubert H,Beppler S,Seipp HMdoi
10.12659/MSM.894251subject
Has Abstractpub_date
2015-08-13 00:00:00pages
2367-74eissn
1234-1010issn
1643-3750pii
894251journal_volume
21pub_type
杂志文章abstract::BACKGROUND The aim of this study was to evaluate the value of semiquantitative analysis (SQA) of 99mTc-MIBI imaging in predicting early-stage cervical lymph node metastasis (CLNM) in thyroid carcinoma (TC). MATERIAL AND METHODS TC patients (n =106) undergoing surgical resection and histopathological examination were e...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.899966
更新日期:2017-03-31 00:00:00
abstract:BACKGROUND:The medial collateral ligament of the knee is frequently injured in sports. The medial collateral ligament healing is slow. Vanadate is a transition element that has been shown to be a nonspecific inhibitor of protein tyrosine phosphatases. It has notable effects on wound healing. This study sought to examin...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2010-04-01 00:00:00
abstract::BACKGROUND The habit of khat (Catha Edulis Forskal) chewing is widely practiced in the southern regions of Saudi Arabia, Yemen, and East Africa. This social habit has tremendous effects on oral and general health of khat chewers. Khat may affect bacterial species in plaque biofilms on oral rehabilitation materials. Th...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.918219
更新日期:2020-01-20 00:00:00
abstract::BACKGROUND Hydrogels are ideal biological carriers in vivo and have been widely used in the treatment of wound healing through loading with or without bioactive substances. Platelet-rich plasma (PRP) is purified from autologous plasma and has known curative efficacy for wound healing. The combined efficacy of shorten ...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.919812
更新日期:2019-11-18 00:00:00
abstract:BACKGROUND:The purpose of the study was to evaluate the effects of MMR immunization and mercury from thimerosal-containing childhood vaccines on the prevalence of autism. MATERIAL/METHODS:Evaluations of the Biological Surveillance Summaries of the Centers for Disease Control and Prevention (CDC), the U.S. Department o...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND:Haemorrhagic hypotension is accompanied by an increase in endogenous opioid system activity, however, its significance is not fully recognised. Therefore, the role of endogenous opioid peptides in the central cardiovascular regulation in haemorrhagic shock was reviewed. CONCLUSIONS:Complex central opioid me...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章,评审
doi:
更新日期:2001-05-01 00:00:00
abstract:BACKGROUND:Children with Down syndrome (DS) present with delays in motor development. The reduced size of the cerebrum, brain maturation disorders, and pathophysiological processes lead to motor development delay. The aim of this study was to examine the gross motor function and estimate what motor abilities are signif...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.893377
更新日期:2015-07-01 00:00:00
abstract::BACKGROUND This study aimed to uncover the molecular mechanisms underlying mild and severe pneumonia by use of mRNA sequencing (RNA-seq). MATERIAL AND METHODS RNA was extracted from the peripheral blood of patients with mild pneumonia, severe pneumonia, and healthy controls. Sequencing was performed on the HiSeq4000 p...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.900782
更新日期:2017-04-06 00:00:00
abstract:BACKGROUND:Currently available treatment options for decompensated hepatitis B-induced liver cirrhosis are limited and largely ineffective. Recently, stem cell transplantation has emerged as a promising treatment for cirrhosis. The aim of this study was to determine whether autologous peripheral blood stem cell transpl...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.892990
更新日期:2015-05-13 00:00:00
abstract::BACKGROUND Diabetes is a risk factor for coronary atherosclerosis and coronary heart disease. Resveratrol (RESV) is a natural compound with anti-inflammatory effects. The objective of this study is to evaluate the cardio protective effects of RESV in a diabetic rat model with coronary heart disease. MATERIAL AND METHO...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.910996
更新日期:2019-01-18 00:00:00
abstract:BACKGROUND:Epstein-Barr virus (EBV) was isolated in the 1960s from the African childhood tumor, Burkitt's Lymphoma (BL), characterized by the translocation of the c-myc gene into one of the immunoglobulin loci. Due to the extreme discrepancy between the widespread dissemination of EBV infection and the overall rarity o...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
abstract::BACKGROUND Repetition disorder can be used as an important criterion for aphasia classification, and damaged arcuate fasciculus in the dominate hemisphere has been reported to be closely related to repetition disorder, but the underlying neurological mechanism remains unclear. MATERIAL AND METHODS Fifteen stroke patie...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.928702
更新日期:2020-12-05 00:00:00
abstract::The accurate and high-throughput detection of drug resistance-related multiple point mutations remains a challenge. Although the combination of molecular beacons with bio-immobilization technology, such as microarray, is promising, its application is difficult due to the ineffective immobilization of molecular beacons...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.882602
更新日期:2012-04-01 00:00:00
abstract:BACKGROUND:Sex differences in epidemiological, clinical and pathological characteristics of colorectal cancer have been under intensive investigation for the last three decades. Given that most of the sex-related differences reported were also age-related, this study sought to determine the potential effect of a sex-ag...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.883842
更新日期:2013-03-20 00:00:00
abstract::BACKGROUND Fibrinogen-like protein 2 (FGL2) is a member of the fibrinogen-like protein family and possesses important regulatory functions in both innate and adaptive immune responses. FGL2 is overexpressed in glioma, and its expression level is negatively associated with the prognosis of glioma patients. However, the...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.923531
更新日期:2020-07-27 00:00:00
abstract::BACKGROUND Atherosclerosis is a chronic and multifactorial disease, and it is the main reason of coronary heart disease, cerebral infarction, and peripheral vascular disease, which leads to the formation of lesions in arterial blood vessels. Our study aimed to explore the protective effect and its underlying mechanism...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.918405
更新日期:2019-12-22 00:00:00
abstract:BACKGROUND:The aim of this study was to determine the relevance of apelin and insulin resistance (IR) with polycystic ovary syndrome (PCOS) and to assess the possible therapeutic effect of the combined therapy of drospirenone-ethinylestradiol (DRSP-EE) combined with metformin. MATERIAL AND METHODS:Sixty-three PCOS pat...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.894926
更新日期:2015-08-28 00:00:00
abstract::Subclavian 'steal' phenomenon is a function of the proximal subclavian artery (SA) steno-occlusive disease, with subsequent retrograde blood flow in the ipsilateral vertebral artery (VA). The symptoms from the compromised vertebrobasilar and brachial blood flows constitute the subclavian steal syndrome (SSS), and incl...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章,评审
doi:10.12659/msm.882721
更新日期:2012-05-01 00:00:00
abstract::BACKGROUND The aim of this study was to assess the effect of combined use of Astragaloside IV(AsIV) and atorvastatin (AV) on the expression of PPAR-γ and inflammation-associated cytokines in atherosclerosis rats. MATERIAL AND METHODS High-density lipoprotein cholesterol (HDL-C), total cholesterol (TC), and low-density...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.908480
更新日期:2018-09-07 00:00:00
abstract::BACKGROUND Functional dyspepsia (FD) refers to a group of upper gastrointestinal syndromes, subdivided into two types: postprandial distress syndrome (PDS) and epigastric pain syndrome (EPS). The etiology of FD remains unclear; however, unhealthy dietary habit is one potential underlying cause. We aim to explore the a...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.902705
更新日期:2017-08-15 00:00:00
abstract:BACKGROUND:The aim of this study was to evaluate visual performance, contrast sensitivity, and patient satisfaction in patients undergoing cataract surgery with bilateral implantation of the Tecnis ZMB00 diffractive multifocal IOL (intraocular lens). MATERIAL/METHODS:This was a prospective study of 40 eyes of 20 patie...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.890585
更新日期:2014-07-15 00:00:00
abstract::BACKGROUND Hepatocellular carcinoma (HCC) is one of the most common malignancies occurring worldwide and is most frequent type of liver cancer. The risk for developing HCC increases with the severity of inflammation and fibrosis. The members of the interleukin-1 (IL-1) family are primarily proinflammatory cytokines du...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.907524
更新日期:2018-05-26 00:00:00
abstract::BACKGROUND Endothelial progenitor cells (EPCs) play an important role in therapeutic angiogenesis. Besides, resveratrol (RSV) exerts many pharmacological functions in regulation of cell function. Furthermore, microRNAs (miRNAs) have been considered to be of great significance in biological process. In this study, we a...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.917013
更新日期:2019-10-13 00:00:00
abstract:BACKGROUND:After left ventricular assist device (LVAD) implantation, post-operative renal failure is a fairly high risk. While comparing the differences in indicators of renal function associated with the use of three different types of LVAD, this retrospective study was designed to evaluate predictors and outcomes of ...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2008-12-01 00:00:00
abstract::BACKGROUND Calcium phosphate cement (CPC) has been applied as a biodegradable antibiotic carrier in osteomyelitis. However, the drug delivery, antibacterial efficacy, and degradation rate of CPC are insufficient and require further improvement in clinical application. MATERIAL AND METHODS Vancomycin-loaded CPC columns...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.908776
更新日期:2018-02-08 00:00:00
abstract:BACKGROUND:B vitamins (including folate, B6, and B12) supplementation can effectively and easily modify high plasma homocysteine (Hcy). However, the role of Hcy in the pathogenesis of osteoporotic fracture and bone turnover is still controversial. This meta-analysis aimed to assess the impact of B vitamin supplementati...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章,meta分析
doi:10.12659/MSM.893310
更新日期:2015-03-24 00:00:00
abstract::BACKGROUND Studies on insulin resistance (IR) in chronic kidney disease (CKD) patients are rare, and its exact mechanism remains unclear. In this study, we explored the molecular mechanism of IR with chronic renal failure (CRF) and interventions to alleviate IR in patients with CRF. MATERIAL AND METHODS In vivo and in...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.909910
更新日期:2018-04-21 00:00:00
abstract:BACKGROUND:The aim of the study was to compare the estimation of hearing threshold values by behavioral and electrophysiological (ASSR) methods in subjects with normal hearing and those with sensorineural hearing impairment. MATERIAL/METHODS:Thirty-two subjects (17 male and 15 female) were tested, with a total of 61 e...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2010-01-01 00:00:00
abstract::BACKGROUND Nimotuzumab is an anti-EGFR monoclonal antibody which has been widely used in cancer treatment. However, the safety and efficacy of nimotuzumab combined with chemotherapy in locally advanced or metastatic esophageal cancer patients remain unclear. MATERIAL AND METHODS To address this open question, we colle...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章,随机对照试验
doi:10.12659/msm.902645
更新日期:2017-01-24 00:00:00
abstract:BACKGROUND:The associations between the thrombomodulin (TM) polymorphisms and coronary artery disease (CAD) risk remain controversial. The aim of this study was to evaluate the association of TM polymorphisms with CAD susceptibility using a meta-analysis approach. MATERIAL/METHODS:All eligible studies were identified ...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章,meta分析
doi:10.12659/MSM.890717
更新日期:2014-08-10 00:00:00