Outcomes from elective colorectal cancer surgery during the SARS-CoV-2 pandemic

This study aimed to describe the change in surgical practice and the impact of SARS-CoV-2 on mortality after surgical resection of colorectal cancer during the initial phases of the SARS-CoV-2 pandemic

Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

Abstract Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

Farklı Azot Kaynağının (N03-N ve NH4-N) Zararlı Denizel Diyatomu Thalassiosira allenii Takano (Bacillariophyceae) Büyümesi Üzerine Etkisi

In order to better understand the effect of two nitrogen form on T.)allenii, the effects of 6 different concentrations of NO3MN and NH4MN were investigated. T.) allenii) was isolated from İzmir BayMNorthern Aegean SeaMTurkey and incubated in a f/2 enrichment medium under constant light in a batch culture system. The growth rate of the species was measured as Chl a)(mg/l) by monitoring the exponential growth phase. The statistical analysis of the obtained data was performed by utilizing the method of least squares. Half saturation constant (Ks) and maximum spesific growth rate (;micro;max)values estimated for each nitrogen form were obtained as follows: ~0;micro;mol NO3MN lM1 and 0.93 dayM1 for nitrate, 0.05 ;micro;mol NH4MN lM1 and 1.034 dayM1 for ammonium. T.allenii species has ability to use both of the nitrogen and therefore can increase the chances of the competition. This results shows that T.allenii species can be a greater role on Algal Blooms.Thalassiosira allenii (Takano) türünün iki azot formundan nasıl etkilendiğini daha iyi anlamak için büyüme hızları üzerinde N03--N ve NH4--N 'nun farklı konsantrasyonun etkileri araştırılmıştır. İzmir Körfezi--Kuzey Ege--Türkiye'den izole edilen T.allenii türü, f/2 zenginleştirme ortamında, sürekli--aydınlık periyotta ve kesikli kültür sisteminde inkübe edildi. Türün büyümesi eksponensiyel büyüme fazı takip edilerek Chl (pgl'l) olarak ölçüldü, elde edilen verilerin istatistiksel analizi en küçük kareler metoduyla yapıldı. Her bir nütrient için hesaplanan Ks ve pmax degerleri sırasıyla: N03 için Ksz0 pg at--NOg--N I'1 ve um": 0.93 giin'l, NH4 için KS: 0.05 pg at--N I'1 ve pmax=l.034 gün'1 olarak bulundu. T.allenii türü her iki azot kaynağında da büyüyebilme yeteneğine sahiptir ve böylece rekabet şansını arttırabilir. Bu sonuçlar T.allenii türünün, aşırı alg çoğalmalarında daha fazla rol alabileceğini göstermektedir