[Ways to decrease blood loss during total hip joint endoprosthesis]

Total replacement (endoprosthesis) of the hip joint was carried out in 93 patients aged 18-60 years. Sixteen operations were performed under prolonged epidural blockade, 66 under neuroleptanalgesia, and 16 under ataralgesia. A deficiency of circulating blood volume was detected in all patients before surgery. The lowest mean arterial pressure was recorded in the prolonged epidural block group, while in the neuroleptanalgesia and ataralgesia groups the mean arterial pressure was virtually the same. Isovolemic hemodilution in patients with preoperative deficit of circulating blood volume decreased blood loss during long traumatic operations. Prolonged epidural blockade in combination with isovolemic hemodilution and spontaneous respiration led to a notable (70%) decrease of the true blood loss in comparison with the traditional neuroleptanalgesia.