Can Blockchain technologies help tackle the opioid epidemic: A Narrative Review.

Objective: To introduce the basic concepts of blockchain technologies in tackling the opioid epidemic.

Design: A narrative review.

Setting/background: The opioid epidemic is taking a big toll in terms of lives and livelihood in America.

Priapism following a lumbar sympathetic nerve block.

Objective: To understand an unusual complication of a common procedure.

Design: This article chronicles the side effect of a lumbar sympathetic nerve block (LSNB).

Setting: Loyola University Medical Center Outpatient Chronic Pain Clinic.

A prospective evaluation of iodinated contrast flow patterns with fluoroscopically guided lumbar epidural steroid injections: the lateral parasagittal interlaminar epidural approach versus the transforaminal epidural approach.

Background: Lumbar midline interlaminar and transforaminal (TF) epidural steroid injections are treatments for low back pain with radiculopathy secondary to degenerative disk disease. Since pain generators are located anteriorly in the epidural space, ventral epidural spread is the logical target for placement of antiinflammatory medications. In this randomized, prospective, observational study, we compared contrast flow patterns in the epidural space using the parasagittal interlaminar (PIL) and transforaminal approaches with continual fluoroscopic guidance.