Ultrasound visibility of regional anesthesia catheters: an in vitro study.

Background: Ultrasound subjective visibility of in-plane needles is correlated with the intensity difference between the needle surface and the background. Regional anesthesia catheters are difficult to visualize by an ultrasound. In the present study, we investigated the ultrasound visibility of the catheters.

New anthranilic acid derivative, EAntS-GS, attenuates Freund's complete adjuvant-induced acute pain in rats.

Background: Acute and chronic pain commonly accompany various clinical conditions such as contusion, fracture, osteoarthritis, peripheral neuropathy, and postherpetic neuralgia. Recent studies have found that antioxidative drugs can have analgesic effects. The present study tested the hypothesis that a new anthranilic acid derivative, EAntS-GS, exerts antinociceptive effects on inflammatory pain in a rat model.

The antinociceptive effects of estradiol on adjuvant-induced hyperalgesia in rats involve activation of adrenergic and serotonergic systems.

Purpose: Estradiol is a female hormone required for maintaining pregnancy and developing follicles in the ovary. Estradiol has been shown to perform a variety of physiological activities, including pain reduction. In this study, we tested the hypothesis that estradiol exerts antinociceptive effects in a rat model of inflammatory hyperalgesia.

Trial spinal cord stimulator reimplantation following lead breakage after third birth.

Background: Many studies have reported lead migration and breakage as complications of epidural spinal cord stimulation. In cases where rapid changes in physique such as those caused by pregnancy are expected, it is unclear whether extra consideration regarding possible adjustments and care to avoid complications such as lead breakage are required.

Objective: This article presents a case in which spinal cord stimulation was used to manage these complications in a woman during the perinatal period.

Mechanisms of analgesic action of pulsed radiofrequency on adjuvant-induced pain in the rat: roles of descending adrenergic and serotonergic systems.

Pulsed radiofrequency (PRF) has been reported to be effective in the treatment of several types of pain. The mechanism of action, however, is not well known. In a recent study, the antinociceptive effects of acute thermal pain were shown to be mediated via descending pain inhibitory pathways.

Olprinone decreases elevated concentrations of cytokine-induced neutrophil chemoattractant-1 in septic rats.

Purpose: The diaphragm is one of the organs directly affected by abdominal sepsis. Evidence suggests that sepsis induces diaphragmatic fatigability and that activated neutrophils play a crucial role in the development of diaphragmatic fatigability. In the present study, we investigated whether olprinone, a phosphodiesterase inhibitor, influenced the kinetics of cytokine-induced neutrophil chemoattractant-1 (CINC-1) in the diaphragm under abdominal septic conditions.

[Resistance to vecuronium bromide induced muscle relaxation in a patient with chronic renal failure and secondary hyperparathyroidism].

We report resistance to vecuronium bromide (Vb) induced muscle relaxation for general anesthesia in a patient with chronic renal failure (CRF) and secondary hyperparathyroidism (HPT). An 81-year-old man (body weight : 52 kg) diagnosed with bladder carcinoma was scheduled for a total cystectomy. In the operating room, standard monitors were applied except for a nerve stimulator.

Anesthetic management of laparoscopic adjustable gastric banding in Japanese patients with morbid obesity.

Laparoscopic adjustable gastric banding (LAGB) is a common type of bariatric surgery worldwide, though not so in Japan. Here we report the anesthetic management of LAGB in ten Japanese patients with morbid obesity. General anesthesia was induced with propofol, fentanyl, and vecuronium bromide and maintained with sevoflurane in oxygen and air (or nitrous oxide in some cases).