Nerve block reduces the incidence of 3-year postoperative mortality: a retrospective cohort study

Area of Science:

• Anesthesiology
• Geriatric Medicine
• Surgical Outcomes

Background:

• Hip replacement surgery is common in elderly patients.
• Postoperative mortality remains a concern in this demographic.
• Anesthetic techniques may influence long-term survival.

Purpose of the Study:

• To evaluate the impact of preoperative nerve blocks on 3-year postoperative mortality in hip replacement patients.
• To compare outcomes between patients receiving nerve blocks and those who did not.
• To identify factors influencing mortality after hip surgery.

Main Methods:

• Retrospective cohort study of 743 hip replacement patients (≥65 years, ASA I-IV).
• Patients were categorized into preoperative nerve block (N group) and no nerve block (NN group) cohorts.
• Propensity score matching and statistical analyses were used to assess mortality at 3 years post-surgery.

Main Results:

• After propensity score matching, 205 patients were analyzed.
• Preoperative nerve block was associated with a reduction in 3-year postoperative mortality.
• Nerve block demonstrated a protective effect on long-term survival.

Conclusions:

• Preoperative nerve block is linked to decreased 3-year mortality following hip replacement.
• Combining nerve blocks with general or neuraxial anesthesia is a promising strategy for improving patient outcomes.
• Further promotion of nerve block techniques in hip replacement surgery is warranted.