Prospective comparative study between the effect of CIDEX® OPA and STERRAD NX on the durability of digital flexible ureteroscope

Qahtani, Saeed H. Al; Abdelhamied, Mohamed H.; AlMuhrij, Abdulrahman H.; Rawashada, Mizyad Y. Al; Askar, Ahmed M. Al; Abdelhamid, Amr M.; El-Bab, Tarek Khalaf Fath; Galal, Ehab Mohamad; El-Adawy, Mahmoud Shoukry

doi:10.1007/s00345-019-02800-z

Cited by 7 publications

(18 citation statements)

References 25 publications

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“…High degradation temperatures suggested that these respirator layers are resistant to several sterilization processes, including those that apply high temperatures. Nevertheless, the sterilization process applied in the present work uses low temperatures (< 35°C) 28 , indicating that these materials will not be degraded after H 2 O 2 plasma treatment. This fact can be confirmed by the TGA analysis of sterilized samples, which showed the same behavior than control samples for all the respirator layers.…”

Section: Resultsmentioning

confidence: 99%

Safety and structural integrity of N95/PFF2 respirators decontamination

Coelho

Perrechil

Peterlini

et al. 2021

American Journal of Infection Control

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COVID-19 is caused by the SARS-CoV-2 virus, an emerging respiratory pathogen. The work environment represents a high risk factor for health professionals. Given the scarcity of protective personal equipment (PPE) due to global demand, decontamination and reuse studies should be carried out. Thus, the aim of this study was to evaluate the safety of a method of decontamination of N95/PFF2 respirators, especially regarding structural integrity. For that, N95/PFF2 respirators were subjected to hydrogen peroxide decontamination and analyzed using scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). Seven respirators of the same brand and lot were used, one being a control and the other six subjected to decontamination process. As for the sealing, a qualitative test was applied, in order to identify the changes in the structure that could damage the sealing of respirators. Results indicated that the fiber morphology in all layers was not affected by the six decontamination cycles. Also, the thermal stability in the different layers was very similar. Fit testing showed that the respiradors submitted to all cycles of decontamination were approved. Thus, it is possible to conclude that the hydrogen peroxide decontamination method is effective, since it does not alter the physical properties of the respirators.

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Section: Resultsmentioning

confidence: 99%

Safety and structural integrity of N95/PFF2 respirators decontamination

Coelho

Perrechil

Peterlini

et al. 2021

American Journal of Infection Control

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“…All articles screened for full text are appended in Appendix S3 . A summary of the included articles is presented in Table 1 [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ].…”

Section: Evidence Acquisitionmentioning

confidence: 99%

“…A total of 48 articles were included in this review [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ]. The main characteristics of these 48 articles are presented in Table 1 .…”

Section: Evidence Synthesismentioning

confidence: 99%

“…This parameter was evaluated in 42 of the 48 included studies [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ]. Table 2 [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , ...…”

Section: Evidence Synthesismentioning

confidence: 99%

“…Over the years, a wide range of flexible scopes have been introduced for clinical use. Functionality as well as characteristics related to the loss of functionality of these flexible ureterorenoscopes have been studied abundantly [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ]. Until now, studies used different approaches to evaluate the quality of flexible ureterorenoscopes.…”

Section: Introductionmentioning

confidence: 99%

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How to evaluate a flexible ureterorenoscope? Systematic mapping of existing evaluation methods

et al. 2021

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The objective of this study was to identify, map and review scope-related and user-related parameters used to evaluate the quality of flexible ureterorenoscopes. Thereby identifying key items and variability in grading systems. MethodsA literature search of four databases (MEDLINE [Ovid], EMBASE [Ovid], Web of Science, Google scholar and the Cochrane Library) was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines encompassing articles published up to August 2020. A total of 2386 articles were screened. ResultsA total of 48 articles were included in this systematic scoping review. All studies had a prospective design. Five key items in the assessment of flexible ureterorenoscopy were distinguished: 'Manoeuvrability' (87.5%), 'Optics' (64.6%), 'Irrigation' (56.3%), 'Handling' (39.6%) and 'Durability' (35.4%). After regrouping, every key item could be divided into specific subcategories. However, the quality assessment showed a wide variation in denomination, method of measurement, circumstances of measurement, tools used during measurements, number of measurements performed, number of observers, and units of outcomes. ConclusionThe research field regarding quality assessment of ureterorenoscopes is heterogeneous. In this systematic scoping review we identified five key parameters: Manoeuvrability, Optics, Irrigation, Handling and Durability, used to grade flexible ureterorenoscopes. However, within these categories we found a wide variety in terms of method of measurements. A standardised, uniform grading tool is required to assess and compare the quality of flexible ureterorenoscopes in the future.

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Illumination matters part IV: blackout and whiteout in flexible ureteroscopy - first report on a phenomenon observed by PEARLS

Kwok,

De Coninck,

Panthier

et al. 2024

World J Urol

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Purpose To date, no study has evaluated effects of varying brightness settings on image quality from flexible ureteroscopes submerged in saline. The aim was to evaluate blackout and whiteout occurrences in an in-vitro kidney calyx model. Material and methods We evaluated a series of contemporary flexible ureteroscopes including the Storz Flex-Xc and Flex-X2s, Olympus V3 and P7, Pusen 7.5F and 9.2F, as well as OTU WiScope using a 3D-printed enclosed pink in-vitro kidney calyx model submerged in saline. Endoscopic images were captured with ureteroscope tip placed at 5 mm,10 mm and 20 mm distances. The complete range of brightness settings and video capture modes were evaluated for each scope. Distribution of brightness on a grayscale histogram of images was analyzed (scale range 0 to 255). Blackout and whiteout were defined as median histogram ranges from 0 to 35 and 220 to 255, respectively (monitor image too dark or too bright for the human eye, respectively). Results Blackout occurred with the P7, Pusen 7.5F, 9.2F and WiScope at all distances, and V3 at 20 mm - with lowest brightness settings. Whiteout occurred with Flex-X2s, V3 and P7 at 5 mm and 10 mm, as well as with V3 and P7 at 20 mm - mostly with highest brightness settings. The Flex-Xc had neither blackout nor whiteout at all settings and distances. Conclusion Blackout or whiteout of images is an undesirable property that was found for several scopes, possibly impacting diagnostic and therapeutic purposes during ureteroscopy. These observations form a guide to impact a urologist’s choice of instruments and settings.

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Prospective comparative study between the effect of CIDEX® OPA and STERRAD NX on the durability of digital flexible ureteroscope

Cited by 7 publications

References 25 publications

Safety and structural integrity of N95/PFF2 respirators decontamination

Safety and structural integrity of N95/PFF2 respirators decontamination

How to evaluate a flexible ureterorenoscope? Systematic mapping of existing evaluation methods

Illumination matters part IV: blackout and whiteout in flexible ureteroscopy - first report on a phenomenon observed by PEARLS

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