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Effectiveness of Heated Sterile Water vs ResoClear ® for Prevention of Laparoscopic Lens Fogging in a Randomized Comparative Trial.
Journal of Endourology 2018 January
BACKGROUND: Laparoscopic surgery may be complicated by visual disturbances, including lens fogging. Several techniques have been developed to prevent laparoscopic lens fogging (LLF). We aim to compare the effectiveness of two commonly available techniques in prevention of LLF: heated sterile water in a thermos flask and ResoClear® impregnation wipes.
MATERIALS AND METHODS: In this single-center prospective randomized study, 50 patients underwent an elective laparoscopic donor nephrectomy and were allocated to either heated sterile water or ResoClear® impregnation wipes as the antifogging method. The primary outcome was the number of fogging events during the first 30 minutes of the operation, whereas secondary outcomes were operating time, number of cleaning events because of other causes, cost differences, and assessment of predicting factors for fogging events.
RESULTS: In 50 patients, the outcomes were analyzed. The number of fogging events was significantly lower when using heated sterile water (median = 0, interquartile range [IQR]: 0-0) compared to ResoClear® (median 1.0, IQR: 0.5-3.0), p < 0.001. There were no significant differences in operating time, number of cleaning events because of other causes, and costs. No predictors of fogging events were found.
CONCLUSION: The use of heated sterile water leads to significantly less fogging events than the use of ResoClear® impregnation wipes, resulting in an improved continuity of the surgery without differences in operating time and costs.
MATERIALS AND METHODS: In this single-center prospective randomized study, 50 patients underwent an elective laparoscopic donor nephrectomy and were allocated to either heated sterile water or ResoClear® impregnation wipes as the antifogging method. The primary outcome was the number of fogging events during the first 30 minutes of the operation, whereas secondary outcomes were operating time, number of cleaning events because of other causes, cost differences, and assessment of predicting factors for fogging events.
RESULTS: In 50 patients, the outcomes were analyzed. The number of fogging events was significantly lower when using heated sterile water (median = 0, interquartile range [IQR]: 0-0) compared to ResoClear® (median 1.0, IQR: 0.5-3.0), p < 0.001. There were no significant differences in operating time, number of cleaning events because of other causes, and costs. No predictors of fogging events were found.
CONCLUSION: The use of heated sterile water leads to significantly less fogging events than the use of ResoClear® impregnation wipes, resulting in an improved continuity of the surgery without differences in operating time and costs.
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