A pilot study of novel ultrahigh-frequency dorsal root ganglia stimulation for chronic lower limb pain: Focusing on safety and feasibility.

Objectives: This single-arm, open-label, single-center observational pilot study assessed the safety and efficacy of ultrahigh-frequency dorsal root ganglia (UHF-DRG) stimulation in patients with chronic leg pain with or without low back pain. Such high-frequency electrostimulation had not been conducted in the human central nervous system previously.

Materials And Methods: The primary objective was to evaluate the safety of UHF-DRG stimulation (2 Hz pulses with 50 msec pulse-width and 500 kHz intrapulse sine waves, 5-min duration per stimulation) by identifying incident adverse events (AE) and severe adverse events (SAE) during the trial.

Outcomes after Stroke in Patients with Previous Pressure Ulcer: A Nationwide Matched Retrospective Cohort Study.

Background: Factors associated with poststroke adverse events were not completely understood. The purpose of this study was to investigate whether stroke patients with previous pressure ulcers had more adverse events after stroke.

Methods: Using the claims data from Taiwan's National Health Insurance Research Database, we conducted a retrospective cohort study matched by propensity score.

Successful extracorporeal resuscitation after perioperative anaphylactic shock during living donor liver transplantation.

A 46-year-old man was admitted for emergent donor hepatectomy. His circulatory condition became unstable 75 minutes after induction and then deteriorated to ventricular fibrillation due to latex-induced anaphylaxis. Following 35 minutes of futile conventional resuscitation without spontaneous cardiac rhythm, extracorporeal resuscitation was initiated and electric cardiac activity returned 10 minutes later.

Survival analysis of postoperative nausea and vomiting in patients receiving patient-controlled epidural analgesia.

Background: Postoperative nausea and vomiting as well as postoperative pain are two major concerns when patients undergo surgery and receive anesthetics. Various models and predictive methods have been developed to investigate the risk factors of postoperative nausea and vomiting, and different types of preventive managements have subsequently been developed. However, there continues to be a wide variation in the previously reported incidence rates of postoperative nausea and vomiting.