PubMed · 10036910
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L Berry. Epidural payment.. https://doi.org/10.1097/00005721-199901000-00016
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OBJECTIVE: To evaluate autonomic nervous tone during general and epidural anesthesia. METHODS: Thirty-two female patients(ASA grade I-II), scheduled for elective hysterectomy, were randomized to receive epidural anesthesia (group EA, n = 16) or general anesthesia (group GA, n = 16). The changes of HRV were observed with power spectral analysis of heart rate variability (HRV-PSA) at the following time intervals: immediately pre-anesthesia (T1), 15 min after induction (T2), 1 min after incision (T3), dragging uterus (T4), after removing uterus (T5) and end of surgery (T6). RESULTS: Patients in group EA demonstrated a significant advance in LF/HF at T4 and descending in LF and HF at T5, T6 to compare with T1, LF, HF and LF/HF remained unchanged at the rest time intervals. In group GA, compared with T1, LF, HF and LF/HF dropped remarkably except for an increase in LF/HF at T6. CONCLUSION: The autonomic nervous tone is inhibited by both epidural and general anesthesia. EA reveals a shift in the sympathovagal balance toward sympathetic predominance. GA is associated with a shift toward parasympathetic predominance intraoperatively, while postoperatively appears a dramatic increase in LF/HF. Relative to EA, there is a greater effect on autonomic nervous system with GA.
UNLABELLED: Post-dural puncture headache (PDPH) is a well recognised complication of spinal and epidural anaesthesia. It can also occur after diagnostic or therapeutic lumbar puncture. Few cases have been reported in children. We reviewed the literature regarding definition, aetiology, incidence, risk factors, prevention and treatment, in order to provide some recommendations. Significant factors include age, gender, needle diameter, needle tip design, orientation of the tip during puncture, previous PDPH, history of migraine and repeated attempts to achieve puncture. There is no evidence for the use of increased fluids or bed rest to prevent PDPH. Once the diagnosis is made, conservative therapy is recommended for 48 h. Persistent PDPH can be treated in several ways; an epidural blood patch is one of the most effective methods. CONCLUSION: occurrence of post-dural puncture headache after lumbar puncture in children is rare. There are conflicting data about risk factors, prevention and treatment.