Do sirolimus-eluting stents suppress neointimal formation irrespective of metallic allergy?
SES prevent restenosis irrespective of metallic allergy. The classic relationship between metallic allergy and in-stent restenosis, seen with bare metal stents, does not appear to arise with DES, possibly because of the immunosuppressive effect of sirolimus.
The common practice of FNA performed by clinicians produces sub-optimal results in head and neck masses. A combined approach of ultrasound-guided fine-needle aspiration of head and neck masses, with immediate assessment of the material by a pathologist, is more accurate than with specimens obtained in other ways. If the results of FNA are to be incorporated into clinical decision making, the samples are best obtained using the USGCC model.