Aliağaoğlu Cihangir, Turan Hakan, Erden Ismail, Albayrak Hülya, Ozhan Hakan, Başar Cengiz, Gürlevik Zehra, Alçelik Ayşegül
Department of Dermatology, Duzce University Medical Faculty, Duzce, Turkey.
Ann Dermatol. 2012 Nov;24(4):426-9. doi: 10.5021/ad.2012.24.4.426. Epub 2012 Nov 8.
In-stent restenosis (ISR) is the major limitation of percutaneous coronary stenting procedure. The elements like nickel, chromate and molybdenum are known to cause contact allergy. Hypersensitivity reaction, against these metal ions, may be one of the reasons of ISR. Cobalt chromium coronary stents, which are increasingly being used in percutaneous coronary interventions, have more nickel amount than the stainless steel stents.
We aimed to investigate the association between nickel hypersensitivity reaction and ISR in patients treated with cobalt chromium coronary stents.
Epicutaneous patch tests for nickel were applied to 31 patients who had undergone elective cobalt chromium coronary stent implantation and had ISR in control angiogram. Thirty patients, without ISR, were included as the control group. Patch test results and other clinical variables were compared.
There was no statistically significant difference of the mean age, sex, body mass index, rate of hypercholesterolemia, diabetes, hypertension and smoking between the patients with and without ISR. All other lesion characteristics were similar in the 2 groups. According to the patch test results, 7 patients had nickel contact allergy. All of these patients were in the ISR group, which was statistically significant (p<0.006).
Patients treated with cobalt chromium coronary stents and had ISR were found to have significantly more nickel allergy than the control group. Nickel allergy may play role in restenosis pathophysiology.
支架内再狭窄(ISR)是经皮冠状动脉支架置入术的主要局限性。已知镍、铬酸盐和钼等元素会引起接触性过敏。针对这些金属离子的超敏反应可能是ISR的原因之一。在经皮冠状动脉介入治疗中越来越多地使用的钴铬冠状动脉支架比不锈钢支架含有更多的镍。
我们旨在研究接受钴铬冠状动脉支架治疗的患者中镍超敏反应与ISR之间的关联。
对31例行择期钴铬冠状动脉支架置入术且在对照血管造影中存在ISR的患者进行镍的表皮斑贴试验。30例无ISR的患者作为对照组。比较斑贴试验结果和其他临床变量。
有ISR和无ISR的患者在平均年龄、性别、体重指数、高胆固醇血症、糖尿病、高血压和吸烟率方面无统计学显著差异。两组的所有其他病变特征相似。根据斑贴试验结果,7例患者有镍接触性过敏。所有这些患者均在ISR组,具有统计学显著性(p<0.006)。
发现接受钴铬冠状动脉支架治疗且发生ISR的患者比对照组有明显更多的镍过敏。镍过敏可能在再狭窄病理生理学中起作用。