Endoscopy mitigation strategy with telemedicine and low-cost device use for COVID-19 prevention: A fourth-level Colombian center experience.

Background And Study Aims: The COVID-19 outbreak has reorganized surgical team conditions regarding endoscopy. The number of interventions has been reduced, the number of healthcare professionals must be limited, and both the patients and physicians are more protected than ever.

Patients And Methods: In the highest peak of contagion in Colombia, endoscopy, colonoscopy, and esophagogastroduodenoscopy were performed using a low-cost disposable device.

Update in alar base reduction in rhinoplasty.

Purpose Of Review: The purpose of this article is to further explore the techniques available for alar base reduction by a recent review in this topic, focusing in the current advances in the field, in a clear and readable format.

Recent Findings: Among the numerous techniques available, the management of cases with wide nasal base and alar flaring remains limited to three options: cinching sutures to pull in the alae together; or to use alar base excisions that remove tissue from the alar lobule to decrease flare and from inside the nostril to decrease width; and flap advancement.

Summary: Surgical modification of the nasal base is not a routine part of rhinoplasty and should be performed in a conservative manner to prevent complications like nasal stenosis.

Clinical evaluation for chin augmentation: literature review and algorithm proposal.

Introduction: The esthetic balance of the face results from harmonic and symmetrical facial proportions. The literature describes several methods for lower-third facial analysis, but lacks a simple and practical method.

Objective: To review the methods of analysis of the ideal projections of the chin based on soft tissues, showing the advantages and disadvantages of each.

Innovations in minimally invasive facial treatments.

Patients are seeking healthier lives, and at the same time their concern about having a beautiful face and maintaining a youthful appearance over time has increased. Traditionally, surgeries based on tissue resection and resurfacing were the focus in facial rejuvenation. Over the last decade, minimally invasive procedures have expanded exponentially because of the variety of cosmetic products available on the market and because patients are looking for a better appearance with nonincision methods.

Targeting neural stem cells with titanium dioxide nanoparticles coupled to specific monoclonal antibodies.

Aiming to characterize the use of biomaterials in cancer therapy, we took advantage of the n-type semiconductor properties, which upon irradiation excite their electrons into the conduction band to induce photoelectrochemical reactions generating oxygen reactive species (ROS). Indeed, photoactivated TiO(2) nanoparticles have been shown to kill in vitro either bacteria or tumor cells in culture following UV irradiation, as a consequence of the ROS levels generated; the killing was highly effective although devoid of specificity. In this report, we have directed the TiO(2) nanoparticles to particular targets by coupling them to the monoclonal antibody (mAb) Nilo1, recognizing a surface antigen in neural stem cells within a cell culture, to explore the possibility of making this process specific.

Titanium oxide as substrate for neural cell growth.

Titanium oxide has antiinflammatory activity and tunable electrochemical behavior that make it an attractive material for the fabrication of implantable devices. The most stable composition is TiO2 and occurs mainly in three polymorphs, namely, anatase, rutile, and brookite, which differ in its crystallochemical properties. Here, we report the preparation of rutile surfaces that permit good adherence and axonal growth of cultured rat cerebral cortex neurons.