Influence of traverse and waveone gold glider glide path files on the amount of apically extruded debris / Influência das limas glide path Traverse e Wave One Gold Glider na quantidade de detritos extruídos apicalmente

Objective: The aim of this study was to evaluate the effect of different glide path files on the amount of apically extruded debris. Material and Methods: Sixty single-canaled mandibular premolars were accessed and randomly divided into three groups (n= 20) according to the file used for glid path creation; group A using Traverse file, group B using WaveOne Gold Glider, group C using stainless steel K file. All teeth were then instrumented using the Reciproc system. The debris extruded apically during instrumentation were collected into pre-weighed Eppendorf tubes which were then stored in an incubator at 70 °C for 5 days. The weight of the dry extruded debris was established by subtracting the pre-instrumentation and post instrumentation weights of the Eppendorf tubes. The data were analyzed using one-way ANOVA test, and post hoc analysis. Results: WaveOne Gold Glider produced the least amount of apical extruded debris (0.41±0.25) followed by the Traverse group (0.59±0.20) then the K-file group (0.64±0.16) with a statistically significant difference (p=0.003). Conclusion: Apical extrusion of debris is inevitable during root canal cleaning and shaping. Creation of glide path using engine-driven files produces less amount of apically extruded debris compared to hand-driven K-files. (AU)

Objetivos: O objetivo deste estudo foi avaliar o efeito de diferentes limas glide path na quantidade de detritos extruídos apicalmente. Metodologia: Sessenta pré-molares inferiores com canal único foram acessados e divididos aleatoriamente em três grupos (n= 20) de acordo com a lima utilizada para criação do glid path; grupo A usando lima Traverse, grupo B usando WaveOne Gold Glider, grupo C usando lima K de aço inoxidável. Todos os dentes foram então instrumentados usando o sistema reciprocante. Os detritos extruídos apicalmente durante a instrumentação foram coletados em tubos Eppendorf pré-pesados que foram então armazenados em uma incubadora a 70°C por 5 dias. O peso dos detritos secos extruídos foi estabelecido subtraindo-se os pesos dos tubos Eppendorf antes e após instrumentação. Os dados foram analisados por meio do teste one-way ANOVA e análise post-hoc. Resultados: WaveOne Gold Glider produziu a menor quantidade de detritos apicais extruídos (0,41±0,25) seguido pelo grupo Traverse (0,59±0,20) e depois pelo grupo K-file (0,64±0,16) com uma diferença estatisticamente significativa (p=0,003). Conclusão: A extrusão apical de detritos é inevitável durante a limpeza e modelagem do canal radicular. A criação do glide path usando limas acionadas por motores produz menos quantidade de detritos extruídos apicalmente em comparação com as limas K manuais. (AU)

Trends in occupational injuries and diseases among Saudi and non-Saudi insured workers

Background: The ongoing industrial and infrastructural development in Saudi Arabia carries a high risk of occupational injuries/diseases.

Aims: To compare trends in occupational injuries and diseases among Saudi and non-Saudi insured workers.

Methods: We used the index values method and slope [S] calculation to analyse the occupational injuries/diseases trends from data in the annual statistical reports published by the General Organization for Social Insurance between 2004 and 2014. Data for 10 565 993 [18.5%] Saudi insured workers [SIWs] and 46 402 079 [81.5%] non-Saudi insured workers [NSIWs] and 896 627 occupational injuries/diseases were analysed.

Results: The distribution of incidences of occupational injuries/diseases among NSIWs [93.5%] was 14 times higher than that of SIWs [6.5%]. Occupational injuries/diseases were more likely to increase among NSIWs than SIWs, particularly in the construction, trade, financing and real estate economic activities, and engineering, technicians and service workers occupations. There was a general decreasing trend in occupational injuries/diseases until 2013.

Conclusions: Non-Saudi insured workers were at high risk of occupational injuries/diseases, therefore, implementation of an effective injury prevention programme is required.

Routine use of Glidescope and Macintosh laryngoscope by trainee anesthetists

Objective: to compare intubating conditions, success rate, and ease of intubation by anesthesia trainees using Glidescope Videolaryngoscope [GVL] compared to Macintosh laryngoscope [MCL]

Study Design: comparative study

Place and Duration of Study: king Khalid University Hospital, Riyadh, Saudi Arabia, from January 2012 to February 2015

Methodology: eighty adult patients ASA I and II with normal airway, scheduled to undergo elective surgery requiring endotracheal [ET] intubation were enrolled. Patients were randomly divided into 2 groups: GVL and MCL. All intubations were performed by trainee residents having experience of more than 1 year and who had successfully performed more than 50 tracheal intubations with each device. Glottic view based on Cormack and Lehane's [C and L's] score and percentage of glottis opening [POGO] score, time to successful intubation, need of external pressure, and overall difficulty scores were compared using either GVL or MCL

Results: view of glottis based on C and L's classification was better [p < 0.001] and POGO score was higher [88.25 +/- 22.06 vs. 57.25 +/- 29.26, p < 0.001] with GVL compared to MCL. Time to intubate in seconds was [32.90 +/- 8.69 vs. 41.33 +/- 15.29, p = 0.004] and overall difficulty score was less 2.78 +/- 1.39 vs. 4.85 +/- 1.75 [p < 0.001] using GVL compared to MCL

Conclusion: residents found ET intubation to be faster and easier with superior glottic view using GVL compared to MCL in patients with normal airway

Novel management of methylene blue extravasation: a case report and review of literature

Methylene blue is a highly irritant drug and has been used intraoperatively. Its accidental extravasation can lead to tissue necrosis. In this report, a unique management is described, and the patient recovered without any morbidity

Ruptured ectopic pregnancy with APLA syndrome - a case report

All means to reduce blood loss in liver resection and to decrease blood loss and a need of blood transfusion would be of benefit to the patient as well as the surgeon. We report two cases in which different strategies were applied in order to achieve the low central venous pressure. We also compared in these cases surgical time, blood loss and blood transfusion requirements during liver resection

Strategies to lower the central venous pressure during liver resections

All means to reduce blood loss in liver resection and to decrease blood loss and a need of blood transfusion would be of benefit to the patient as well as the surgeon. We report two cases in which different strategies were applied in order to achieve the low central venous pressure. We also compared in these cases surgical time, blood loss and blood transfusion requirements during liver resection