Abstract:

BACKGROUND: Now, anesthesia methods commonly used in the elderly include equal-density, high-density and low-density spinal-epidural anesthesia. The best anesthesia regimen can be chosen based on comparison of different proportion of spinal-epidural anesthesia.
OBJECTIVE: To analyze and compare the drug regimen, onset time of anesthesia, anesthesia duration, Bormage motor blocking score among different proportion of spinal-epidural anesthesia.
METHODS: A computer based search was performed to retrieve articles about spinal-epidural anesthesia for hip replacement published from 2000-01 to 2011-05 using the keywords of “hip replacement, combined spinal-epidural anesthesia” in Chinese and English. Repetitive articles or Meta analysis were excluded. Finally, 15 articles were included in the result analysis.
RESULTS AND CONCLUSION: These proportions of the liquid can meet the requirements of total hip replacement. The Bromagc scores of the high-density and equal-density spinal-epidural anesthesia were higher than that of the low-density anesthesia. The onset time of 3 g/L ropivacaine regimen could be faster. Duration of high-density and equal-density anesthesia was longer than that of low-density anesthesia. Equal-density, high-density and low-density spinal-epidural anesthesias are all safe and reliable in elderly hip replacement.