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Copyright of Revista Foco (Interdisciplinary Studies Journal) is the property of Revista Foco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction: Thulium laser enucleation was introduced in 2010. In contrast to other transurethral techniques, it is characterized by mechanical dissection of the adenoma with low energy use. Objective: To compares various existing thulium laser enucleation techniques, including a new technique, in terms of efficacy, safety, efficiency, and short-term outcomes for treating benign prostatic hyperplasia. Method: A comparative study was conducted involving 48 patients, aged 51 to 91, with obstructive benign prostatic hyperplasia. A total of 48 surgeries were performed, comparing traditional techniques (trilobar, Mushroom, Tangerina), photovaporization and a new three-point technique between May 2018 and June 2019. Results: Different thulium laser enucleation techniques showed varying rates of post-surgical complications. The trilobar technique exhibited the highest complication rate (33%). Statistical analysis did not reveal significant differences in bleeding between the trilobar and three-point techniques, indicating similarities in this aspect. Conclusions: The selection of a transurethral approach for benign prostatic hyperplasia will depend on the patient's comorbidity, the surgeon's experience, and the availability of enucleation instruments. A modification of the enucleation technique is proposed, based on anatomical knowledge and variations in energy type. [ABSTRACT FROM AUTHOR]

Introduction: When performing a surgical intervention, the cutting instrument used is especially important, since it is associated with intraoperative and postoperative signs and symptoms and to the time of tissue repair. In response to this, new instruments have been proposed over time, particularly laser technology has been undergoing rapid and significant advancement and is currently used for countless dental treatments. Laser has been attributed different advantages in periodontal cosmetic surgery: from facilitating the hemostasis process, to stimulating the tissue repair process. However, it is pertinent to carry out studies that prove, at histological level, the changes in the oral mucosa and obtain information that allows us to know how it influences the tissue repair process. Objective: To describe the histological findings associated with the Er, Cr: YSGG (2780 nm) laser cut in gum samples obtained by gingivectomy. Case presentation: Female patient, 21 years old, systemically healthy. She attended the consultation for presenting aesthetic dissatisfaction when smiling. She was diagnosed with exposure of keratinized gum band greater than 4 mm. As part of the treatment plan, Er, Cr: YSGG (Waterlase®, BIOLASE®, 2780 nm) laser gingivectomy was indicated. The procedure was performed only under topical anesthesia. Histological samples of gingival tissue were taken for histological analysis. Conclusions: The Er, Cr: YSGG (2780 nm) laser preserved the morphology of the fibroblasts after the cut. There was no evidence of carbonization or deepening of the thermal injury in the tissue. In this case, this instrument was a very useful tool for the performance of the treatment. It had important advantages, such as the absence of postoperative pain, good hemostasis, and almost complete epithelial repair in just four days.

The authors report a case of a 68-yearold woman who developed hypotony and a narrow anterior chamber after an Ex-Press shunt implant. After resolution, tube was obstructed by iris hanging to the end of the shunt, which was liberated using Nd:YAG laser. We discuss our results compared with others shown in the literature. [ABSTRACT FROM AUTHOR]