| FESS | functional endoscopic sinus surgery |
|---|---|
| HCSS | hypersensitive carotid sinus syndrome |
| ICSO | intermittent coronary sinus occlusion |
| IST | inappropriate sinus tachycardia; insulin sensitivity test; insulin shock therapy; International Soci... |
| LCS | cerebrospinal fluid [Lat. liquor cerebrospinalis]; left coronary sinus; life care service; low const... |