There are multiple definitions:

1. penetrating keratoplasty(English)

   • AK
   • Ophthalmology, Surgery
   • https://doi.org…3350(99)00210-2

2. plakophilin(English)

   • AV, ARVC, BAG3, CMR, CRT, CV, DCM, DES, DSC, DSG, DSP, FLNC, GDMT, HCM, HFrEF, ICD, JUP, LGE, LMNA, LVEF, NDLVC, NSVT, NYHA, OMT, PES, PLN, RBM20, RCM, RV, SCD, SCN5A, TMEM43, TNNT2, TPM2, VT
   • Cardiology
   • https://doi.org….1002/ejhf.3076

3. percutaneous kyphoplasty(English)

   • NRS, ODI, OVCF, PVP
   • Orthopedics, Spine (or spinal cord)
   • https://doi.org…-1892.202305035
   • http://pubmed.n…h.gov/24063170/