Tratamiento con electrocirugía del rinofima moderado-grave / Electrosurgery for the Treatment of Moderate or Severe Rhinophyma

El rinofima se considera el estado final de la rosácea, siendo una condición desfigurante progresiva y poco común. Existen diferentes alternativas quirúrgicas como la dermoabrasión, la criocirugía, la escisión con escalpelo, la electrocirugía y el láser CO2. Estas 2 últimas técnicas son las más efectivas en el manejo del rinofima. Se describe una serie de casos de pacientes con rinofima moderado-grave que recibieron manejo con electrocirugía de alta frecuencia en el Servicio de Dermatología del Hospital Simón Bolívar y práctica privada entre 2012 y 2016. Todos los pacientes mostraron respuesta estética satisfactoria basada en el criterio médico y la percepción del paciente. Tres pacientes presentaron cicatrices hipertróficas manejadas con infiltraciones y bandas de silicona. Dos pacientes presentaron eritema persistente. Ningún caso requirió un segundo tiempo quirúrgico, ni infección grave. La electrocirugía es una de las técnicas vigentes más coste-efectivas y de fácil realización por el dermatólogo para el tratamiento del rinofima

Rhinophyma, a rare and progressive disfiguring condition, is thought to be the final stage of rosacea. Several surgical treatments are available, including dermabrasion, cryosurgery, scalpel excision, electrosurgery, and carbon dioxide laser. The last 2 techniques are the most effective for the management of rhinophyma. We describe a series of cases of moderate or severe rhinophyma treated with high-frequency electrosurgery in the dermatology department of Hospital Simón Bolivar and in private clinics in Bogota, Colombia, between 2012 and 2016. The cosmetic result, as assessed by both the clinicians and the patients, was satisfactory in all cases. Three patients presented hypertrophic scars that were treated with steroid injections and silicone gel sheeting. Two patients presented persistent erythema. However, there were no serious infections and none of the patients required further surgery. Electrosurgery is one of the simplest and most cost-effective techniques currently available for the treatment of rhinophyma by dermatologists

An anomalous insertion fascicle of the caput laterale of the triceps brachii. Case report / Fascículo de la cabeza lateral del tríceps braquial con inserción anómala. Informe de un caso

We report a case of an undescribed anomaly of the triceps brachii muscle during routine cadaver dissections of the upper limb, at the "Nueva Granada" Military University (UMNG) and School of Medicine in Santafé de Bogotá, Colombia. This finding prompted us to review the literature in order to ascertain the prevalence and probable clinical significance of this tendinous structure, which originated distally from the caput laterale of the tricpes brachii and inserted proximally into the scapula, passing directly posterior to the neurovascular bundle containing the axillary nerve and posterior circumflex humeral artery and dividing the spatium axillare laterale (quadrilateral space) in two. A thorough review of the literature failed to disclose any previous reports of this variant and therefore, this report constitutes the first description of this anomaly (AU)

Comunicamos un caso de una anomalía no descrita del músculo tríceps braquial, hallada durante las disecciones cadavéricas rutinarias de la extremidad superior en la Universidad Militar de “Nueva Granada” (UMNG) y la Facultad de Medicina de Santafé de Bogotá, Colombia. Este hallazgo nos animó a revisar la literatura existente con el fin de averiguar la frecuencia y el significado clínico probable de esta estructura tendinosa, que se originaba distalmente de la cabeza lateral del tríceps braquial y se insertaba proximalmente en la escápula, pasando directamente posterior al paquete neurovascular que contiene el nervio axilar y la arteria circunfleja posterior, dividiendo el espacio axilar lateral (espacio cuadrilátero) en dos. Una amplia revisión de la literatura no reveló ningún informe previo de esta variante y, por eso, este trabajo constituye la primera descripción de dicha anomalía (AU)

Indole-3-Acetic Acid Control on Acidic Oat Cell Wall Peroxidases.

Incubation of oat coleoptile segments with 40 µm indoleacetic acid (IAA) induced a decrease of 35-60% in peroxidase activity at the cell wall compartment. Treatment with IAA also produced a similar decrease in the oxidation of NADH and IAA at the cell wall. Isoelectric focusing of ionic, covalent, and intercellular wall peroxidase fractions showed that acidic isoforms (pI 4.0-5.5) were reduced preferentially by IAA treatment. Marked differences were found between acidic and basic wall isoperoxidases in relation to their efficacy in the oxidation of IAA. A peroxidase fraction containing acidic isoforms oxidized IAA with a V(max)/s(0.5) value of 2.4 x 10(-2) min(-1). g fw(-1), 4.0 times higher than that obtained for basic peroxidase isoforms (0.6 x 10(-2) min(-1). g fw(-1)). In contrast, basic isoforms were more efficient than acidic isoperoxidases in the oxidation of coniferyl alcohol or ferulic acid with H(2)O(2) (5.6 and 2.1 times, respectively). The levels of diferulate and lignin in the walls of oat coleoptile segments were not altered by treatment with IAA. The decrease in cell wall peroxidase activity by IAA was related more to reduced oxidative degradation of the hormone than to covalent cell wall cross-linking.Key Words. IAA-Auxin-Wall peroxidases-Oat-Avena sativa-Diferulic acid-Ligninhttp://link.springer-ny.com/link/service/journals/00344/bibs/18n1p25.html