Subdural Hematoma as a Consequence of Labor Epidural Analgesia

Headache that will not go away...Third ED visit is the charm?

Subdural hematoma is an uncommon complication of epidural analgesia or diagnostic lumbar puncture. Headache is a common complaint for patients with either a subdural hematoma or a post-dural puncture headache. Because post-dural puncture headaches are commonly seen in the Emergency Department, the potential to miss more serious pathology arises. We present the case of a young female who suffered bilateral subdural hematomas following epidural analgesia during childbirth. She presented twice to the Emergency Department and was treated for a post-dural puncture headache before computed tomography imaging revealed the diagnosis on the third Emergency Department encounter. This case highlights the importance of exploring all potential diagnoses when a patient presents with a headache after either epidural analgesia or a diagnostic lumbar puncture, especially if the patient returns after unsuccessful treatment for a presumptive post-dural puncture headache.

A narrative review of the literature relevant to obstetric anesthesiologists: the 2023 Gerard W. Ostheimer lecture

This narrative review of the 2023 Gerard W. Ostheimer lecture presented at the Society for Obstetric Anesthesia and Perinatology 2023 annual meeting summarizes 2022 literature relevant to obstetric anesthesiologists.

ANTENATAL STUDIES

Neonatal morbidity is reduced with antenatal maternal buprenorphine compared with methadone for treatment of opioid use disorder. Antenatal pregnancy allergy testing is safe and feasible.

ANALGESIA AND ANESTHESIA STUDIES

Intrathecal (IT) 3% chloroprocaine for cervical cerclage results in faster sensory block resolution and discharge readiness compared with bupivacaine. The ED90 of 3% chloroprocaine (with IT fentanyl 10 µg) is 49.5 mg. Dural puncture epidural technique does not improve the quality of labor analgesia in obese parturients compared with epidural analgesia. Low- (>0.08 to ≤0.1%) and ultra-low (<0.08%) concentrations of bupivacaine for epidural analgesia maintenance result in similar maternal and neonatal outcomes. Lower doses of first line uterotonic agents are non-inferior to higher doses (oxytocin 0.5 IU vs. 5 IU and carbetocin 20 vs. 100 µg) in patients at low risk for postpartum hemorrhage. Supplemental analgesia or conversion to general anesthesia is necessary in approximately 15% of elective cesarean deliveries. Intravenous dexamethasone improves analgesia outcomes, however optimal dosing and timing remain unclear; it may induce neonatal hypoglycemia in the setting of gestational diabetes.

POSTPARTUM STUDIES

A core outcome set may help evaluate enhanced recovery protocol implementation. History of migraine and accidental dural puncture (ADP) above the L3 level are associated with epidural blood patch (EBP) failure and ADP at or below L3 and >48 h interval between ADP and EBP are associated with success.

Neuraxial and Perineural Bleeding after Neuraxial Techniques: An Overview of the Last Year

Spinal hematoma following neuraxial or perineural techniques is a rare but severe complication that can potentially lead to catastrophic consequences. The aim of this review is to analyze all reported cases of neuraxial or perineural bleeding after performance of a locoregional technique since the last guidelines update in 2018. We included articles indexed by MEDLINE, Scopus, and Google Scholar. We analyzed the patient's age, surgical procedure, pre-operative anticoagulant and antiplatelet therapy, type of anesthetic procedure, vertebra level of the procedure, diameter and point type of the needle, hematoma type (spinal, subdural, epidural), signs and symptoms, time to imaging, and time to treatment and outcome. During our bibliographic research, we identified 5637 unique articles that were eligible according to our protocol criteria, identifying 18 separate cases of neuraxial bleeding. Although clinicians are usually aware of antiplatelet and anticoagulant perioperative management, a careful post-procedural observation and a detailed patient education are also imperative for the early detection of the symptoms of spinal cord ischemia.