Are paravertebral nerve blocks an answer to pain after iliac crest bone marrow biopsy?

While bone marrow biopsy and aspiration (BMBA) is recognized to be painful, current analgesic options are insufficient with widely variable efficacy. Local anesthesia does not reduce pain associated with bone marrow aspiration, and while opioids are often used to reduce suction-associated pain, many patients still report severe pain during the procedure [1]. The efficacy of premedication with oral narcotics and benzodiazepines is inconsistent, and some studies have found it to have no advantage over local anesthesia alone [2].
Source: Journal of Clinical Anesthesia - Category: Anesthesiology Authors: Tags: Correspondence Source Type: research