Pitiriasis rosada en el embarazo: reporte de caso / Pityriasis rosea in pregnancy: case report

RESUMEN A pesar de que la Pitiriasis Rosada se considera una condición cutánea benigna, en el marco del embarazo, hay estudios que relacionan la aparición de esta patología con complicaciones asociadas en el feto. Metodología: Se realiza un reporte de caso, prospectivo, a una mujer de 36 años chilena que presentó esta patología durante la semana 12 de gestación. El objetivo fue describir, la evolución y control y contrastar su evolución con la evidencia científica actual sobre esta temática. Resultados: Paciente presenta placas eritematodescamativas concordantes con diagnóstico de pitiriasis rosada (superficie afectada menos al 50% de su cuerpo), sin presentar enantema, ni síntomas sistémicos. Tuvo un recién nacido sano a las 38 semanas de gestación, sin presentar ningún efecto adverso de los que relaciona la literatura analizada. Conclusiones: Distintos estudios han estudiado los posibles efectos adversos en el feto en madres que han presentado Pitiriasis Rosada en el embarazo, sin embargo, en este reporte de caso no se presentaron complicaciones asociadas. Faltan estudios realizados en mayor cantidad de pacientes.

ABSTRACT Although Pityriasis Rosea is considered a benign cutaneous condition, in the context of pregnancy, there are studies that relate the appearance of this pathology with associated complications in the fetus. Methodology: A prospective case report was made to a 36-year-old Chilean woman who presented this pathology during the twelve weeks of pregnancy. The objective was to describe, the evolution and control and to contrast its evolution with the current scientific evidence on this subject. Results: Patient presents concordant erythematous-desquamative plaques with diagnosis of Pityriasis Rosea (surface affected less than 50% of his body), without presenting enanthem, nor systemic symptoms. Had a healthy newborn at 38 weeks of gestation, without presenting any adverse effect related to the analyzed literature. Conclusions: Different studies have studied the possible adverse effects on the fetus in mothers who have presented pityriasis rosea in pregnancy, however in this case report there were no associated complications. Missing studies in a greater number of patients.

Exantemas de la infancia / Childhood exanthems

En los últimos años han surgido algunos avances en el entendimiento de ciertos exantemas virales clásicos de la infancia, así como se ha relacionado algunos virus conocidos con exantemas atípicos y se han descrito nuevos exantemas probablemente vira les. Estos cuadros clínicos son parte de la consulta diaria y por ello requieren una revisión frecuente de los mismos.

Recent studies have introduced some progress in understanding of certain classic viral exanthems durig infancy: some well known viruses have been related with atypical exanthems, new exanthems, probably related with virus, have been described. These clinical pictures are quite common in daily practice and need to be frequently reviewed.

[Efficacy of Erythromycin in treatment of pityriasis rosea [A double-blind, placebo-controlled clinical trial]]

Pityriasis rosea is an acute inflammatory dermatosis with an unknown cause. Although it is a self limited disorder and has no chronic side effects [nevertheless it will take between 3-6 weeks] but it may continue for two months. In order to shorten pityriasis rosea course and remove itching and skin lesions, it is advisable to cure the disease with an appropriate drug. Based on the above, the present study was performed to investigate efficacy of Erythromycin in comparison with placebo and improve this disease period. A randomized double blind clinical trail was carried out on typical pityriasis rosea patients who had referred to 5th Azar clinic Gorgan-Iran during December 2004-May 2005. 46 patients were selected and randomly divided into two groups [23 patients in each one]. Since it was a double blind study, treatment for two weeks was prescribed then the cure rate was measured during second, fourth and sixth week. In case group, Erythromycin 1gr/day was prescribed and continued for two weeks. In the other group only placebo was prescribed. Pearson chi-square analysis with 2- sided p value was applied to compare the distribution of pityriasis rosea between patients by using Sspss-11.5 software Regard to the kind of study and qualitative attribute; we used comparison between ratios in order to analyze them. Meaningful level for these tests was alpha =0.05. Results: Even though we gained good results in case group during second, fourth and sixth week after treatment, but there was no significant difference between these two groups at alpha =0.05. This investigation shows that Erythromycin has little effect on pityriasis rosea period. Therefore we suggest complementary study with larger samples in future