Although previous case series have suggested that SGB offers an effective intervention for PTSD, this study did not demonstrate any appreciable difference between SGB and sham treatment on psychological or pain outcomes. Future studies should examine if differences in treatment methods or patient population could allow individuals with PTSD to benefit from SGB, but current evidence does not support widespread or indiscriminant clinical use of the procedure for PTSD.

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The prevalence of post-traumatic stress disorder (PTSD) has reached epidemic proportions among U.S. veterans, many of whom also have concurrent alcohol use disorder. This case report describes improvements in PTSD symptom severity and memory dysfunction in a combat-exposed veteran with persistent PTSD and alcohol use disorder following two treatments of stellate ganglion block (SGB). PTSD severity was measured using the PTSD Checklist, Military Version. Memory function was evaluated using the Rey Auditory Verbal Learning Test. One month after the first SGB, a 43.6% reduction in PTSD severity was observed along with increases in immediate memory (50%), recent memory (28%), and recognition memory (25%). Following a second SGB, PTSD severity decreased by 57.7% and memory function substantially improved, with pronounced changes in immediate memory (50%), recent memory (58%), and recognition memory (36%). One year after SGB treatments, the patient has stopped drinking alcohol, continues to have sustained relief from PTSD, has improved memory function, and has become gainfully employed. Future studies that employ robust epidemiologic methodologies are needed to generate confirmatory evidence that would substantiate SGB's clinical utility as an adjunctive treatment option for PTSD.

We present the cases of two patients who suffered severe lower extremity injuries and subsequently developed phantom limb pain (PLP) that was refractory to high dose opioids and adjunctive pain medications. Both patients were receiving large doses of oral methadone, IV hydromorphone via a patient-controlled analgesia delivery system, and adjunctive medications including tricyclic antidepressants, nonsteroidal anti-inflammatory medications, and anti-epileptics. Despite these treatments, the patients had severe PLP. Upon induction of the oral N-methyl-D-aspartate receptor antagonist memantine, both patients had a profound reduction in their PLP without any apparent side effects from the medication.