ÖzetAmaç: Seboreik dermatit, herpes zoster ve pitriyazis rozean›n ortak özellikleri hava ›s›s›n›n düflük oldu¤u dönemlerde görülme s›kl›klar›n›n artmas›d›r. Biz çal›flmam›zda seboreik dermatit, herpes zoster ve pitriyazis rozea'n›n y›l içinde aylar ve mevsimler ile olan iliflkilerini saptamay› amaçlad›k. Gereç ve Yöntem: Aral›k 2006 -Aral›k 2009 tarihleri aras›nda dermatoloji poliklini¤imize baflvuran 20397 hasta ve seboreik dermatit, herpes zoster ve pitriyazis rozea tan›s› alm›fl olan 1801 hasta otomasyon dosya sisteminden retrospektif olarak analiz edildi. Hastalar demografik verilere ve tan›lara göre grupland›r›ld›. Bulgular: Hastal›klar ile s›k görüldü¤ü mevsimler aras›nda istatistiksel olarak anlaml› iliflki tespit edildi (p<0,001). Seboreik dermatit %32,5 oran›nda sonbahar mevsiminde, herpes zoster %29,8 oran›nda sonbahar mevsiminde, pitriyazis rozea %31,0 oran›nda k›fl mevsiminde, tüm dermatolojik hastal›klar %29,1 oran›nda k›fl mevsiminde tespit edildi. Hastal›klar ile s›k görüldü¤ü aylar aras›nda istatistiksel olarak anlaml› iliflki tespit edildi (p<0,001). Seboreik dermatit %12,3 oran›nda kas›m ay›nda, herpes zoster %11,5 oran›nda eylül ay›nda, pitriyazis rozea %10,7 oran›nda ocak ay›nda, tüm dermatolojik hastal›klar %8,21 oran›nda flubat ay›nda tespit edildi. Sonuç: Çal›flma sonuçlar›m›z literatür bilgileri ile paralellik göstermektedir. Seboreik dermatit, herpes zoster, pitriyazis rozea ve tüm dermatolojik hastal›klar›n görülmesi aç›s›ndan sonbahar ve k›fl aylar› en yüksek oranda tespit edilmifltir. Ortam ›s›s›n›n düfl-mesi hücresel immun direncin deprese olmas›na neden olmakta, bunun da hastal›klara yatk›n bireylerde hastal›klar›n ortaya ç›k-mas›na ya da nüksüne neden oldu¤unu düflünüyoruz. (Türkderm 2010; 44: 65-8) Anahtar Kelimeler: Seboreik dermatit, herpes zoster, pitriyazis rozea, mevsim, k›fl, sonbahar
SummaryBackground and Design: The common characteristic of seborrheic dermatitis, herpes zoster and pityriasis rosea is the increase in their incidence in the low weather temperature periods. The aim of this study was to determine the relationships of seborrheic dermatitis, herpes zoster and pityriasis rosea with the months and sessions during the year. Material and Method: Twenty thousends three hundreds ninety seven patients referred to our dermatology policlinic between December 2006 and December 2009 with 1801 patients being diagnosed as seborrheic dermatitis, herpes zoster or pityriasis rosea were retrospectively analysed from the automation record system. The patients were grouped according to demographic data and diagnosis. Results: A statistically significant relationship was found between the diseases and the seasons in which they were frequently seen (p<0.001). It was found that 32.5% of seborrheic dermatitis was seen in autumn season, 29.8% of herpes zoster was seen in autumn season, 31.0% of pityriasis rosea was seen in winter season, and 29.1% of all dermatological diseases was seen in winter season. A statistically significant relationship was found between the diseases and the ...