Retrospective Study of the Analgesic Effect of Sacroiliac Joint Radiofrequency Denervation.

Background: Interventional radiofrequency (RF) ablation techniques are indicated when an adequate effect is not obtained with conservative measures.

Objectives: The primary objective of this study was to evaluate pain relief after RF denervation of the sacroiliac joint. The secondary objective was to evaluate pain intensity and relief duration.

Randomized clinical study on the analgesic effect of local infiltration versus spinal block for hemorrhoidectomy.

Background And Objectives:: Postoperative analgesia and early recovery are important for hospital discharge. The primary objective of this study was to compare the analgesic effectiveness of perianal infiltration and subarachnoid anesthesia for hemorrhoidectomy. The secondary objective was to compare time to discharge, adverse effects and complications.

[The prevalence of nosocomial infection in Intensive Care Units in the State of Rio Grande do Sul].

Background And Objectives: To determine the prevalence of intensive care unit (ICU)-acquired infections and the risk factors for these infections, identify the predominant infecting organisms, and evaluate the relationship between ICU-acquired infection and mortality.

Methods: A 1-day point prevalence study. Sixteen ICU of the State of Rio Grande do Sul-Brazil, excluding coronary care and pediatric units.