The aim of this study is to evaluate the changes of venous flow, volume, and resistance in upper (basilic v.) and lower (popliteal v.) extremities of the elderly healthy patients compared with elderly hypertensive patients who undergoing spinal anesthesia for transurethral prostatectomy.
Inclusion Criteria:
Exclusion Criteria:
jenyhongg@yuhs.ac
hkkil@yuhs.ac