Prevalencia de Esófago de Barrett en pacientes con y sin síntomas de Reflujo Gastroesofágico / Incidence of Barrett´s esophagus in subjects with and without symptoms of gastroesophageal reflux

Background: Barrett´s esophagus (BE) is a disease in which the stratified squamous epithelium of the distal esophagus suffers a change to columnar epithelium. This change is known as intestinal metaplasia. This pathology is related with gastroesophageal reflux disease (GERD), however, lately its presence has been observed in patients without gastroesophageal reflux symptoms, reason why there is an interest in developing some screening method for BE. Objectives: Main purpose for the study was to know de incidence of BE in patients in patients with and without symptoms of GERD from the gastroenterology outpatient service of San Juan de Dios General Hospital. Methods: A retrospective descriptive study to determine the prevalence of BE in patients that underwent an esophageal biopsy during an endoscopy with and without symptoms for GERD. Results: A review of medical records was sampled with a total of 70 patients. Seven (7) were excluded due to a previous diagnosis of esophageal adenocarcinoma. Patients were classified according to their referred symptomatology in previous consultations, in a control group (patients with symptoms of GER, n=32) with a prevalence of 18.75% and an experimental group (patients without symptoms of GER; n=31) with a prevalence of 9.67%. Discussion: The incidence found of near 10% of EB is a statistic significant percentage indicating the need for a screening for Barrett´s esophagus in subjects with no symptoms of GERD with a 95% of reliability

La enfermedad por reflujo gastroesofágico (ERGE) es uno de los desórdenes gastrointestinales con mayor prevalencia. Es la enfermedad gastrointestinal más diagnosticada en Estados Unidos (1) por su alta relación con la obesidad. Existen diferentes factores de riesgo que predisponen a desarrollar la enfermedad, entre ellos: consumo de alimentos que disminuyan la presión del esfínter esofágico inferior, alcoholismo, tabaquismo, hernia hiatal, hipersecreción de ácido gástrico, obesidad y embarazo. El reflujo gastroesofágico (RGE) es el movimiento retrógrado del contenido gástrico hacia el esófago a través del esfínter esofágico inferior, el cual puede ser fisiológico o patológico cuando ya existen síntomas o cambios histopatológicos en el epitelio del esófago. El reflujo gastroesofágico predispone a los pacientes a desarrollar complicaciones: esofagitis, esófago de Barrett, adenocarcinoma de esófago. Las personas pueden presentar diferentes síntomas como: pirosis, regurgitación, saciedad temprana, laringitis, eructos, tos nocturna, erosiones dentales, entre otros. La presencia de estos síntomas orienta al médico para realizar el diagnóstico de ERGE. Aproximadamente un 60% de los adultos en Estados Unidos muestran síntomas ocasionalmente; de este porcentaje, un 7% presentan síntomas todos los días y un 20% mensualmente (2).

Caracterización del tejido columnar del cérvix mediante espectroscopia de impedancia eléctrica y modelado computacional / Characterization of cervical columnar tissue through electrical impedance spectroscopy and computer modeling

RESUMEN Introducción: En este artículo se presenta la utilización de la espectroscopia de impedancia eléctrica (EIE) en la caracterización del tejido columnar cervical y como herramienta de apoyo a las técnicas diagnósticas del cáncer de cuello uterino. Métodos: Se realizó un estudio de validez diagnóstica a 30 pacientes no menopáusicas que presentaron ectopia cervical durante la colposcopia. Se obtuvieron 129 espectros de impedancia eléctrica de tejido columnar, que fueron diferenciados en cuatro zonas o puntos de toma de medidas, semejantes a las zonas horarias 12, 3, 6, y 9 de un reloj análogo. Los datos experimentales obtenidos fueron ajustados al modelo de Cole-Cole, que describe la fisiología y estructura del tejido mediante parámetros eléctricos de resistividad R y S, frecuencia característica Fc y capacitancia de membrana Cm. Resultados: La comparación entre tejidos columnares sanos y con lesión en cada uno de los puntos de medida se realizó mediante pruebas no paramétricas U de Mann-Whitney, que mostraron diferencias estadísticamente significativas (p <0,05) para las medianas de R y S, con un nivel de confianza del 95%. Los valores promedio de R y S para tejido columnar sano fueron 2,0 Ω-m y 11,36 Ω-m, con desviación estándar 0,41 y 0,51 respectivamente; mientras que para los tejidos con lesiones el valor promedio R y S fueron de 4,21 Ω-m y 7,03 Ω-m, con desviación estándar 0,40 para ambas medidas. Conclusión: Se encontró que la resistividad del líquido extracelular R y la resistividad de la matriz intracelular S son las que mejor discriminan entre epitelios columnares sanos y aquellos afectados por lesiones.

ABSTRACT Introduction: Thi s pape r shows the implementation of Electrical Impedance Spectroscopy (EIS) in the characterization of the cervical columnar tissue and as a supporting tool to the diagnostic techniques of cervical cáncer Methods: A diagnostic validity study was performed on 30 non-menopausal patients who presented cervical ectopy during colposcopy. A total of 129 electric impedance spectra of columnar tissue was obtained, which were differentiated into four measurement zones or points similar to time zones 12, 3, 6, and 9 of an analog clock. The experimental data obtained were adjusted to the Cole-Cole model which describes the physiology and structure of the tissue through electrical resistivity parameters R and S, characteristic frequency Fc and membrane capacitance Mc. Results: The comparison between healthy and damaged columnar tissue at each of the measurement points was performed using non-parametric Mann-Whitney U tests which showed statistically significant differences (p <0.05) for the R and S medians with a 95% confidence level. The average values of R and S for healthy columnar tissue were 2.0 Ω-m and 11.36 Ω-m, with 0.41 and 0.51 standard deviation respectively, whereas for a damaged tissue the average value of R and S were 4.21 Ω-m and 7.03 Ω-m, with 0.40 standard deviation for both measurements. Conclusions: It was found that the resistivity of the extracellular liquid R, and the resistivity of the intracellular matrix S, are the parameters that better discriminate between healthy columnar epithelia and those affected by lesions.

Clinical Evaluation of Recombinant Human Interferon Alpha-2 b Combined with LEEP in the Treatment of Cervical Ectopic Columnar Epithelium with Chronic Cervicitis / 中国药师

Objective:To investigate the clinical efficacy of recombinant human interferon alpha -2b combined with Loop electro-sugical excision procedure( LEEP)in the treatment of cervical ectopic columnar epithelium with chronic cervicitis. Methods:The med-ical records of 68 cases of cervical ectopic columnar epithelium with chronic cervicitis in our hospital from April 2012 to April 2014 treated with LEEP were analyzed retrospectively. The control group(30 cases)was treated with LEEP combined with 5-day postopera-tive oral administration of antibiotics to prevent infection,and the treatment group(38 cases)was given recombinant human interferon alpha -2b through vagina additionally,every other day for 20 days every month after menstrua. After 6 courses of treatment,the clinical efficacy,vaginal bleeding time,vaginal discharge duration,wound healing time and HPV persistent infection were compared between the two groups. Results:The cure rate of the control group was 66. 67%,while that of the treatment group was 92. 11%,and the difference was significant(P<0. 05). Totally 19 cases in the control group were with wound healing(accounted for 63. 33%),while that in the treatment group was 32 cases(accounted for 84. 21%),the difference was significant(P<0. 05). And the vaginal bleeding time,vaginal discharge duration,and wound healing time of the treatment group were all significantly shorter than those of the control group(P<0. 05). After the treatment,the HPV persistent infection rate in the control group was 16. 67%,while that in the treatment group was 0%,and the difference was statistically significant(P<0. 05). The two groups during the treatment process had no obvious adverse reactions,indicating high drug safety. Conclusion:Recombinant human interferon alpha-2b combined with LEEP in the treat-ment of cervical ectopic columnar epithelium is safe and effective,which can effectively shorten the wound healing time,vaginal bleed-ing time and vaginal discharge duration,and is worthy of promotion in clinics.

A Case of Salivary Duct Cyst in Oral Mucosa / 대한피부과학회지

No abstract available.

Intratesticular Simple cyst lined by ciliated columnar epithelium: A Case Report / 영남의대학술지

An intratesticular simple cyst is a rare lesion. The pathogenesis of such lesions is uncertain. Clinically, an intratesticular simple cyst may be difficult to differentiate from a cystic neoplasm. However, preoperative diagnosis is possible using ultrasonography (US). Testis-sparing surgery with simple enucleation of the cyst has a favorable outcome. We report an intratesticular simple cyst in a 48-year-old male who had a non-tender cystic mass in the right testis for 2 years. The diagnosis was made by preoperative US. The patient underwent a testis-sparing surgery. After simple excision of the cyst, histological examination revealed a simple cyst lined by ciliated cuboidal and columnar epithelium.

Three Cases of Parameatal Urethral Cyst / 대한피부과학회지

We herein report three cases of pararneatal urethral cyst, which developed on the male urethral meatus. These cysts occurred since birth or childhood, and did not interfere with urinary of sexual function. Histologically, these cysts were lined by pseudostratified columnar epithelium with variable thickness. No recurrence was evident after simple excision.