Objective To evaluate the evidence-based prevention and treatment of post-dural puncture headache (PDPH) for parturient women. Methods We searched The Cochrane Library (Issue 3, 2006), Medline (Jan. 1980 to Oct. 2006) and CBM-disc (Jan. 1980 to Oct. 2006) to identify current best evidence on the prevention and treatment of PDPH for parturient women. The quality of available evidence was critically appraised.Results We identified 2 Cochrane systematic reviews, 2 meta-analyses and 9 randomized controlled trials. Evidence indicated that posture, fluid, and pharmacological managements had no significant effect on PDPH except epidural blood patch. The selection of appropriate spinal needle and the technique of needle insertion may reduce the incidence of PDPH, whereas the effect of intrathecal saline infusion and catheter insertion need further clinical validation. Conclusions Epidural blood patch has definite therapeutic effect on PDPH. Appropriate spinal needle and insertion technique may effectively prevent PDPH for parturient women.
Objective To search evidence of angiotensin-converting-enzyme inhibitors for microalbumin-uria in type 2 diabetes for guiding clinical practice. Methods We searched MEDLINE （ 1970 -Jun. 2005 ） to identify randomized controlled trials （RCT）of the effect on angiotensin-converting-enzyme inhibitors to prevent microalbuminuria in type 2 diabetes. Results One RCT （n =1 204）was identified. The result showed that angiotensin-converting-enzyme inhibitors were significantly more effective in prevention of microalbuminuria than other medicines in type 2 diabetes. However, angiotensin-converting-enzyme inhibitors may increase the risk of cardiac mortality. We explained the evidence to patients and they were satisfied with our explanation. Conclusions Angiotensin-converting-enzyme inhibitors can decrease the incidence of microalbuminuria in patients with type 2 diabetes and hypertension.