Prurigo crónico nodular: Estudio retrospectivo de 74 casos / Chronic Nodular Prurigo: A Retrospective Study of 74 Cases

Antecedentes y objetivo El prurigo crónico nodular (PCN) es una enfermedad recientemente definida, de etiología heterogénea e infradiagnosticado en la actualidad. Está asociado a múltiples comorbilidades y los avances en su patogenia han abierto puertas a un mejor manejo y tratamiento. Presentamos una serie de pacientes con PCN con el objetivo de aportar nuestra experiencia en el manejo de esta entidad. Material y métodos Se realizó un estudio observacional, retrospectivo y unicéntrico que incluye pacientes con PCN atendidos en el Servicio de Dermatología de un hospital terciario entre 2009 y 2021. Se recogieron variables sociodemográficas y clínicas. Resultados Se incluyó 74 pacientes, mayoritariamente mujeres (63,5%), con una media de 57 años. La asociación del PCN con otras enfermedades cutáneas fue del 39,2%, sobre todo dermatitis atópica (62%). El 54,1% de los pacientes presentaron comorbilidad endocrina y el 44,4% comorbilidad cardiovascular. La asociación con enfermedad psiquiátrica fue del 36,5%. La biopsia cutánea fue útil para confirmar la sospecha clínica en el 70% de los casos. El valor medio de la IgE fue superior a la normalidad (516 UI/mL), independientemente de la existencia de predisposición atópica. Se utilizó una media de tres tratamientos para el PCN por paciente. El metotrexato, los antihistamínicos y los corticoides tópicos y orales fueron los más empleados, estando el primero entre los más eficaces. Conclusione El PCN es una enfermedad compleja asociada a un gran número de comorbilidades, que requiere una aproximación multidisciplinar con el dermatólogo como eje central. El manejo terapéutico clásico es probablemente inadecuado (AU)

Background and objective Chronic nodular prurigo (CNPG) is a recently defined and currently underdiagnosed disease with a variety of causes. It is associated with multiple comorbidities, and its management and treatment have improved with a better understanding of its pathogenesis. The aim of this study was to describe our experience with a series of patients with CNPG. Material and methods Single-center, observational, retrospective study of the sociodemographic and clinical characteristics of patients with CNPG seen at the dermatology department of a tertiary care hospital between 2009 and 2021. Results We included 74 patients, mostly women (63.5%), with a mean age of 57 years. Overall, 39.2% of patients had a concomitant skin condition, mainly atopic dermatitis (62%). Other comorbidities included endocrine disorders (54.1%), cardiovascular disease (44.4%), and psychiatric disorders (36.5%). Skin biopsy helped confirm the clinical diagnosis in 70% of cases. The mean immunoglobulin E level was higher than normal (516 IU/mL), regardless of atopic predisposition. On average, patients received 3 treatments, the most common choices being methotrexate, antihistamines, and topical and oral corticosteroids. Methotrexate was among the most effective options. Conclusions CNPG is a complex disease associated with multiple comorbidities. It requires a multidisciplinary approach, with the dermatologist at the center. Classical treatment approaches are probably insufficient (AU)

[Translated article] Chronic Nodular Prurigo: A Retrospective Study of 74 Cases / Prurigo crónico nodular: estudio retrospectivo de 74 casos

Background and objective Chronic nodular prurigo (CNPG) is a recently defined and currently underdiagnosed disease with a variety of causes. It is associated with multiple comorbidities, and its management and treatment have improved with a better understanding of its pathogenesis. The aim of this study was to describe our experience with a series of patients with CNPG. Material and methods Single-center, observational, retrospective study of the sociodemographic and clinical characteristics of patients with CNPG seen at the dermatology department of a tertiary care hospital between 2009 and 2021. Results We included 74 patients, mostly women (63.5%), with a mean age of 57 years. Overall, 39.2% of patients had a concomitant skin condition, mainly atopic dermatitis (62%). Other comorbidities included endocrine disorders (54.1%), cardiovascular disease (44.4%), and psychiatric disorders (36.5%). Skin biopsy helped confirm the clinical diagnosis in 70% of cases. The mean immunoglobulin E level was higher than normal (516 IU/mL), regardless of atopic predisposition. On average, patients received 3 treatments, the most common choices being methotrexate, antihistamines, and topical and oral corticosteroids. Methotrexate was among the most effective options. Conclusions CNPG is a complex disease associated with multiple comorbidities. It requires a multidisciplinary approach, with the dermatologist at the center. Classical treatment approaches are probably insufficient (AU)

Antecedentes y objetivo El prurigo crónico nodular (PCN) es una enfermedad recientemente definida, de etiología heterogénea e infradiagnosticado en la actualidad. Está asociado a múltiples comorbilidades y los avances en su patogenia han abierto puertas a un mejor manejo y tratamiento. Presentamos una serie de pacientes con PCN con el objetivo de aportar nuestra experiencia en el manejo de esta entidad. Material y métodos Se realizó un estudio observacional, retrospectivo y unicéntrico que incluye pacientes con PCN atendidos en el Servicio de Dermatología de un hospital terciario entre 2009 y 2021. Se recogieron variables sociodemográficas y clínicas. Resultados Se incluyó 74 pacientes, mayoritariamente mujeres (63,5%), con una media de 57 años. La asociación del PCN con otras enfermedades cutáneas fue del 39,2%, sobre todo dermatitis atópica (62%). El 54,1% de los pacientes presentaron comorbilidad endocrina y el 44,4% comorbilidad cardiovascular. La asociación con enfermedad psiquiátrica fue del 36,5%. La biopsia cutánea fue útil para confirmar la sospecha clínica en el 70% de los casos. El valor medio de la IgE fue superior a la normalidad (516 UI/mL), independientemente de la existencia de predisposición atópica. Se utilizó una media de tres tratamientos para el PCN por paciente. El metotrexato, los antihistamínicos y los corticoides tópicos y orales fueron los más empleados, estando el primero entre los más eficaces. Conclusiones El PCN es una enfermedad compleja asociada a un gran número de comorbilidades, que requiere una aproximación multidisciplinar con el dermatólogo como eje central. El manejo terapéutico clásico es probablemente inadecuado (AU)

Chronic Nodular Prurigo: A Retrospective Study of 74 Cases. / Prurigo crónico nodular: Estudio retrospectivo de 74 casos.

BACKGROUND AND OBJECTIVE: Chronic nodular prurigo (CNPG) is a recently defined and currently underdiagnosed disease with a variety of causes. It is associated with multiple comorbidities, and its management and treatment have improved with a better understanding of its pathogenesis. The aim of this study was to describe our experience with a series of patients with CNPG. MATERIAL AND METHODS: Single-center, observational, retrospective study of the sociodemographic and clinical characteristics of patients with CNPG seen at the dermatology department of a tertiary care hospital between 2009 and 2021. RESULTS: We included 74 patients, mostly women (63.5%), with a mean age of 57 years. Overall, 39.2% of patients had a concomitant skin condition, mainly atopic dermatitis (62%). Other comorbidities included endocrine disorders (54.1%), cardiovascular disease (44.4%), and psychiatric disorders (36.5%). Skin biopsy helped confirm the clinical diagnosis in 70% of cases. The mean immunoglobulin E level was higher than normal (516 IU/mL), regardless of atopic predisposition. On average, patients received 3 treatments, the most common choices being methotrexate, antihistamines, and topical and oral corticosteroids. Methotrexate was among the most effective options. CONCLUSIONS: CNPG is a complex disease associated with multiple comorbidities. It requires a multidisciplinary approach, with the dermatologist at the center. Classical treatment approaches are probably insufficient.

Prurigo crónico: actualización / Update on Chronic Prurigo

El prurigo crónico es una entidad con una apariencia clínica común pero que puede ser secundaria a un gran número de patologías. Históricamente ha sido una enfermedad no bien definida y con escasas terapias disponibles, por lo que su manejo es muy complejo. Clínicamente se caracteriza por lesiones escoriadas e hiperqueratósicas en el contexto de un paciente con prurito crónico. Ante la sospecha de un prurigo crónico, es fundamental realizar un buen diagnóstico diferencial e identificar todas sus posibles causas. En los últimos años se han producido importantes avances con la aparición de nuevos criterios diagnósticos y con el desarrollo de nuevos fármacos. Un mayor conocimiento de esta patología redundará en el beneficio de unos pacientes que hasta el momento carecen de un tratamiento claramente efectivo (AU)

Chronic prurigo is itself a common condition, but it can also occur secondary to a large number of diseases. Management is challenging as historically chronic prurigo has been poorly defined and very few treatments are available. Clinically, it presents as excoriated, hyperkeratotic lesions. When chronic prurigo is suspected, a comprehensive differential diagnosis is essential. New diagnostic criteria have appeared in recent years and new drugs have been developed. Although no truly effective treatment is yet available, patients will benefit from a greater understanding of this condition (AU)

[Translated article] Update on Chronic Prurigo / Prurigo crónico: actualización

Chronic prurigo is itself a common condition, but it can also occur secondary to a large number of diseases. Management is challenging as historically chronic prurigo has been poorly defined and very few treatments are available. Clinically, it presents as excoriated, hyperkeratotic lesions. When chronic prurigo is suspected, a comprehensive differential diagnosis is essential. New diagnostic criteria have appeared in recent years and new drugs have been developed. Although no truly effective treatment is yet available, patients will benefit from a greater understanding of this condition (AU)

El prurigo crónico es una entidad con una apariencia clínica común pero que puede ser secundaria a un gran número de patologías. Históricamente ha sido una enfermedad no bien definida y con escasas terapias disponibles, por lo que su manejo es muy complejo. Clínicamente se caracteriza por lesiones escoriadas e hiperqueratósicas en el contexto de un paciente con prurito crónico. Ante la sospecha de un prurigo crónico, es fundamental realizar un buen diagnóstico diferencial e identificar todas sus posibles causas. En los últimos años se han producido importantes avances con la aparición de nuevos criterios diagnósticos y con el desarrollo de nuevos fármacos. Un mayor conocimiento de esta patología redundará en el beneficio de unos pacientes que hasta el momento carecen de un tratamiento claramente efectivo (AU)

Update on Chronic Prurigo. / Prurigo crónico: actualización.

Chronic prurigo is itself a common condition, but it can also occur secondary to a large number of diseases. Management is challenging as historically chronic prurigo has been poorly defined and very few treatments are available. Clinically, it presents as excoriated, hyperkeratotic lesions. When chronic prurigo is suspected, a comprehensive differential diagnosis is essential. New diagnostic criteria have appeared in recent years and new drugs have been developed. Although no truly effective treatment is yet available, patients will benefit from a greater understanding of this condition.

Are the chilblain-like lesions observed during the COVID-19 pandemic due to severe acute respiratory syndrome coronavirus 2? Systematic review and meta-analysis.

The expansion of the COVID-19 pandemic has been accompanied by numerous reports of chilblain-like lesions (CLL) in different countries; however, the pathogenesis of these lesions is still unclear. This systematic review and meta-analysis aimed to assess the prevalence of COVID-19 (diagnosed using PCR and/or serology) in patients with CLL. We undertook a literature search in PubMed, Embase, and Scopus (to 15 March 2021), including studies that reported on the number of patients with CLL with positive PCR and/or serology for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) or with a clinical suspicion of COVID-19. Regardless of data heterogeneity, a random-effects model was used to pool prevalence estimates. The meta-analysis included 63 original studies, involving 2919 cases of CLL. A subgroup of these patients underwent diagnostic tests for COVID-19 (PCR: n = 1154, 39.5%; serology: n = 943, 32.3%). The pooled prevalence of COVID-19 in the overall sample and in the subgroup who were tested for COVID-19 was, respectively: (i) positive PCR: 2.6% [95% confidence interval (CI) 1.9% to 3.4%] and 5.5% (95% CI, 3.7-7.7%); (ii) positive serology for SARS-CoV-2: 7.2% (95% CI, 4.7-10.2%) and 11.8% (95% CI, 7.9-16.3%); and (iii) positive PCR and/or serology, 15.2% (95% CI, 10.4-20.7%) and 7.5% (95% CI, 5.1-10.3%). Altogether, a small proportion of diagnostic tests for SARS-CoV-2, both PCR and serologies, show positive results in patients with CLL.

Calcifilaxis: factores de riesgo y hallazgos histológicos en una serie de casos de un hospital terciario / Calciphylaxis: Risk Factors and Histologic Findings in a Case Series From a Tertiary Care Referral Hospital

En los últimos años se han producido importantes avances en el conocimiento de la calcifilaxis, al haberse identificado nuevos factores de riesgo para su desarrollo, y hallazgos histológicos que podrían ser de ayuda al diagnóstico. Nuestro propósito al realizar este estudio ha sido revisar retrospectivamente los casos de calcifilaxis atendidos en nuestro hospital en los últimos 13 años, con especial atención a los aspectos más novedosos de esta patología. Se incluyó un total de 16 pacientes, 62,5% mujeres, con edad media de 67,9 años. Entre los factores asociados destacaron, aparte de la enfermedad renal avanzada (75%), los tratamientos relacionados con el metabolismo fosfocálcico (75%) y la anticoagulación (62,5%), en su mayoría con fármacos antagonistas de la vitamina K. En el estudio histológico se hallaron alteraciones en las fibras elásticas solo en un 25% de las biopsias. Once de los pacientes han fallecido, siendo la sepsis la primera causa de muerte (AU)

Recent years have seen important advances in our understanding of calciphylaxis, especially regarding newly identified risk factors and histologic findings that may aid diagnosis. This retrospective study of cases of calciphylaxis treated in our hospital in the last 13 years focuses on newly revealed aspects of this disease. We describe 16 patients (62.5% women; mean age, 67.9 years). In addition to advanced kidney disease (in 75% of our patients), other factors associated with the presence of calciphylaxis were a history of treatments related to phosphorus and calcium metabolism (75%) and anticoagulation (62.5%), usually with vitamin-K antagonists. Histology showed alterations in elastic fibers in only 25% of the biopsy specimens. Eleven of the patients died: sepsis was most often the cause (AU)

Calciphylaxis: Risk Factors and Histologic Findings in a Case Series From a Tertiary Care Referral Hospital. / Calcifilaxis: factores de riesgo y hallazgos histológicos en una serie de casos de un hospital terciario.

Recent years have seen important advances in our understanding of calciphylaxis, especially regarding newly identified risk factors and histologic findings that may aid diagnosis. This retrospective study of cases of calciphylaxis treated in our hospital in the last 13 years focuses on newly revealed aspects of this disease. We describe 16 patients (62.5% women; mean age, 67.9 years). In addition to advanced kidney disease (in 75% of our patients), other factors associated with the presence of calciphylaxis were a history of treatments related to phosphorus and calcium metabolism (75%) and anticoagulation (62.5%), usually with vitamin-K antagonists. Histology showed alterations in elastic fibers in only 25% of the biopsy specimens. Eleven of the patients died: sepsis was most often the cause.

Fístula mamilar como una posible manifestación de una hidradenitis supurativa / Mammillary Fistula as a Possible Manifestation of Hidradenitis Suppurativa

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