Background Hysteroscopic surgery has been widely used in clinical practice for more than 30 years due to its advantages of less trauma, less bleeding, and direct vision. The aim of this study was to compare hysteroscopic morcellation versus conventional resectoscopy for removal of endometrial lesions. Material/Methods For the database search, we used the keywords “morcellator,” “morcellators,” “morcellate,” “morcellation,” and “morcellated” combined with “hysteroscopy,” “uteroscope,” and “transcervical”. The last search was conducted on February 1, 2022. Randomized controlled trials (RCTs) were included in the meta-analysis. Results According to our retrieval scheme and the inclusion and exclusion criteria, we found 6 studies including 565 patients. For enumeration data, we calculated the effect size as relative risk (RR) and 95% confidence interval (95% CI), while for quantitative data we used the weighted mean difference (WMD) and 95% confidence interval (95% CI). There was no significant difference between success rate of hysteroscopic morcellation and conventional resectoscopy (relative risk and 95% confidence interval 1.05(0.97,1.13); P =0.232). Procedure time was also shorter with hysteroscopic morcellation, the procedure time of the hysteroscopic morcellation group was 3.43 min shorter compared with the conventional resectoscopy group, and the operating time in the hysteroscopic morcellation group was 2.81 min shorter. In terms of fluid deficit, there was no statistically significant difference in fluid loss between the 2 groups ( P =0.209). Conclusions Hysteroscopic morcellation is associated with a shorter procedure time and operative time among patients with endometrial lesions compared with resectoscopy.

Ba­(Y1–x–y Er x Yb y )­F5/polyacrylonitrile (BYF-EY/PAN) composite fibers have been prepared by adopting the electrospinning technology, and fusiform-polycrystalline-implanted fibers can be fused with a thermal response function and excellent flexibility. Upconversion emission displays quadratic and cubical dependence of the photoluminescence intensity on the pumping power, confirming two-photon- and three-photon-induced processes, respectively. Among them, the intense green emission ascribed to 2H11/2/4S3/2 → 4I15/2 transitions is appointed as the main indicator of noncontact temperature sensing, and the faintish blue-violet emission originated from 4G11/2/2H9/2 → 4I15/2 transitions can be served as an auxiliary monitoring channel to calibrate deviation, thereby improving operational accuracy. At a relatively moderate working temperature (363 K), the absolute sensitivity and relative sensitivity of composite fibers reach as high as 0.455 and 0.832% K–1 for main sensing and 0.391 and 2.176% K–1 for auxiliary sensing, respectively. The developed BYF-EY/PAN fiber with outstanding dual-feedbacked temperature sensing is promising to act as flexible sensing elements in fabrics and biomedical devices.