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[en] Becker’s nevus is a common pigmented dermatosis, usually featured by ipsilateral pigmented patch with hypertrichosis. Becker’s nevus is often treated with various types of lasers although other regimens are available. However, clinical outcomes appear inconsistent among studies. To summarize the clinical outcomes of Becker’s nevus treated with lasers via literature review. A variety of lasers had been used alone or in combination to treat Becker’s nevus. Laser wavelengths used for Becker’s nevus ranged from 504 to 10,600 nm, while the number of treatment varied from 1 to 12 sessions. The clinical outcomes were mixed although combination of lasers with different wavelengths appeared to achieve a better efficacy. Adverse effects were usually mild to moderate erythema. While lasers are relatively safe, their efficacy for Becker’s nevus is moderate. It seems that combination therapy could improve the outcome. However, trials in larger group of patients are required to validate the efficacy of each type of lasers for Becker’s nevus.
[en] Various lasers have been used for the treatment of erythematotelangiectatic rosacea (ETR), facial erythema (FE), and facial telangiectasias (FT). The assessment of the treatments of all of these conditions with a 577-nm pro-yellow laser has not been reported yet. The aim of this work was to assess the efficacy and safety of the 577-nm pro-yellow laser in ETR, FE, and FT. Forty patients suffering from ETR, FE, and FT (25 female and 15 male) were enrolled in this study. All of the patients were treated with 577-nm pro-yellow laser (QuadroStarPRO YELLOW® Asclepion Laser Technologies, Germany) at 4-week intervals, for one to four sessions. The assessment of the treatment was made based on the digital photographs and the percentage of fading of the erythema and telangiectasias in the lesions. Significant clinical improvement (80–100%) was observed in the first or second sessions of the treatment in FE and ETR patients and in second and fourth sessions of the treatment in FT patients. The treatment was very well tolerated. No side effect was observed except for a few patients who had mild to moderate erythema fading away in 12–24 h. This case series has shown that the pro-yellow laser is a very effective, safe, and well-tolerated treatment for ETR, FE, and FT.
[en] To address the clinical evidence that may support the fact that subcutaneous administration of ozone has anti-hyperalgesic effects probably acting by modifying specific pain targets. Fifty-two patients attending the Medinat Clinic, Camerano, Ancona, Italy between October 2004 to October 2009 were eligible to participate in the study. Panoramic photos of painful and not painful areas submitted to oxygen /ozone treatment injection were analyzed to detect the intensity of erythema. The erythematic areas after ozone subcutaneous puncture showed significant (p<0.05) increment (83+/-5%) in the painful area versus 7+/-6% in the contralateral area. The surrounding erythema observed during ozone intervention should explain at least in part, its interaction with some pain mediators. This may involve algesic mediators or receptors. The analgesic mechanism induced by oxygen/ozone may involve 2 independent steps: a short-term mechanism that may correspond with the direct oxidation on biomolecules, and a long-term mechanism that may involve the activation of antioxidant pathways. Further studies are needed to support the biochemical analgesic mechanism of ozone therapy (Author).
[en] A non-blinded three armed study of the effect of Aloe vera, Essex and no lotion on erythema was performed. The erythema is an effect of radiotherapy treatment in breast cancer patients. The study required testing of objective methods for measuring the erythema. The chosen experimental methods were Near Infrared Spectroscopy, Laser Doppler Imaging and Digital Colour Photography. The experimental setup was made in such a way that in parallel with testing the effect of the lotions there was also a test of the sensitivity of the instruments. Fifty women were selected consecutively to participate in the study. They were all subjected to treatment with high-energy electrons (9-20 MeV) after mastectomy, 2 Gy/day to a total dose of 50 Gy. Measurements were performed before the start of radiotherapy and thereafter once a week during the course of treatment. Aloe vera and Essex lotion were applied twice every radiation day in selected sites. The increase in skin redness could be monitored with all techniques with a detection limit of 8 Gy for Digital Colour Photography and Near Infrared Spectroscopy and 18 Gy for Laser Doppler Imaging. In clinical practice our recommendation is to use Digital Colour Photography. No significant median differences were observed between the pairs no lotion-Essex, no lotion-Aloe vera and Essex-Aloe vera for any of the techniques tested
[en] Radio-dermatitis is one of the important side effects of ionizing radiation. It causes severe degree of morbidity and also affects the quality of life of the cancer patients. Acute radio-dermatitis usually starts at the third week of radiation therapy and progresses with time. The symptoms which range from erythema to scaling or ulceration may lead to treatment discontinuation. Dermatological studies indicate that the colour of the skin plays an important role in the incidence and exacerbation of ultraviolet induced radiation. Previous studies have shown that the Fitzpatrick scale which is a standard in dermatological studies is an important tool in the assessment of ultraviolet induced sunburn. In this study, we used this scale to categorize patients depending on the skin colour and incidence and grade of radio-dermatitis. The results indicated that the pigmentary phototype 3 and 4 had more severe degree dermatitis than phototype 5. The study will address these details. (author)
[en] The individual minimal erythema dose (MED) and the persistence of a marked erythema (8 MED) was monitored over 3 weeks (300 nm +- 10 nm) in 4 groups: White students with fair complexion compared with students of homogenous pigmentation as well as skin carcinoma patients compared with a control group of the same age, i.e., older than 50 years. The MED of the 4 groups gives no significant differences, while the skin carcinoma group shows in 80% a prolonged erythema persistence (control group only 28%). This phenomenon does not seem to correlate with the skin type and may be useful in identifying high-risk patients prone to light-induced skin cancer. (orig.)
[de]Die individuelle minimale Erythemdosis (MED) und die Persistenz eines deutlichen Erythemes (8 MED) wurde waehrend 3 Wochen (300 nm +- 10 nm) bei folgenden 4 Gruppen untersucht: Studenten mit heller Komplexion wurden verglichen mit solchen einer homogenen braunen Pigmentierung. Patienten mit Lichtcarcinomen ueber 50 Jahre alt wurden mit einer Kontrollgruppe verglichen, die keine Carcinome tragen. Die MED der 4 Gruppen zeigt keine signifikanten Unterschiede. Die Gruppe mit Lichtcarcinomen zeigt in 80% eine ueberlange Persistenz des Erythems (Kontrollgruppe nur 28%). Dieses Phaenomen ist nicht mit dem Hauttyp korreliert und koennte zur prospektiven Identifizierung von Risikopatienten fuer Lichtcarcinome Anwendung finden. (orig.)
[en] The primary goal of this study was to evaluate the MR findings of systemic lupus erythematosus (SLE) patients with neuropsychiatric symptoms. The MR images of 38 patients with SLE were evaluated based on the presence of the following abnormal lesions: the locations of the abnormal signal intensity lesions in the white matter, infarctions, a small vessel vasculopathy, leukoencephalopathy, hemorrhage, abscess, and other lesions. The MR images showed an abnormality in 22 of 38 (58%) episodes. Abnormal signal intensities were noted in the subcortical and periventricular white matter in six cases, acute territorial infarctions in five cases, multiple small acute embolic infarctions in four cases and a brain abscess in two cases. A reversible posterior leukoencephalopathy was found in one case. In addition, another patient had vasogenic edema with focal central cytotoxic edema at the pons. The entire cerebral and corpus callosum volumes were significantly smaller in four patients with SLE as compared to the volumes in healthy control subjects. SLE may induce variable MR imaging findings of the CNS. Recognition of the variable findings is helpful for easy diagnosis and prompt treatment
[en] Generalized cutaneous reactions in association with radiotherapy have in the past been grouped into erythema multiforme (EM) and erythema multiforme-like reactions, the latter being reactions that do not strictly fit the accepted clinical and/or histological criteria for EM, yet have similar findings or presentations. 23 refs., 3 figs
[en] Radiation recall phenomenon is a tissue reaction that develops throughout a previously irradiated area, precipitated by the administration of certain drugs. Radiation recall is uncommon and easily neglected by physicians; hence, this phenomenon is underreported in literature. This manuscript reports two cases of radiation recall. First, a 44-year-old man with nasopharyngeal carcinoma was treated with radiotherapy in 2010 and subsequently developed multi-site bone metastases. A few days after the docetaxel-based chemotherapy, erythema and papules manifested dermatitis, as well as swallowing pain due to pharyngeal mucositis, developed on the head and neck that strictly corresponded to the previously irradiated areas. Second, a 19-year-old man with recurrent nasal NK/T cell lymphoma initially underwent radiotherapy followed by chemotherapy after five weeks. Erythema and edema appeared only at the irradiated skin. Both cases were considered chemotherapeutic agents that incurred radiation recall reactions. Clinicians should be knowledgeable of and pay attention to such rare phenomenon