Journal of clinical anesthesia
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The manipulation of an airway is always a critical moment in the anesthetic management of patients with pheochromocytoma due to the high incidence of undesirable hemodynamic events in relation with the stimulus represented by the laryngoscopy. A known difficult airway in which it is necessary to carry out an orotracheal intubation while preserving spontaneous ventilation subjects the patient to a stressful situation. The objective is to obtain an acceptable level of comfort and sedation avoiding respiratory depression (Anesthesiol Clin 2015;33:233-40). In this case, we describe the management of a known difficult airway in a patient with a pheochromocytoma and a personal history of arterial hypertension and chronic obstructive pulmonary disease who underwent orotracheal intubation with spontaneous ventilation with Airtraq and with dexmedetomidine as the only sedative agent.
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The GlideScope (GVL; Saturn Biomedical Systems, Burnaby, British Columbia, Canada) is a rigid indirect video laryngoscope device that facilitates exposure of the larynx for placement of the endotracheal tube. This blade also reduces the requirement for anterior displacement of the tongue. A unique feature is the acutely angled blade which provides an improved glottic view. ⋯ Use of the GlideScope requires less lifting force (approximately 0.5-1.5 kg) than direct laryngoscopy to achieve visualization of the glottis, so less traction is applied to soft tissue. However, meticulous care must be taken even by experienced operators to ensure correct use to decrease the incidence of oropharyngeal injuries, especially in patients with difficult airways. Increased vigilance makes the GlideScope an invaluable tool despite its potential complications.
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Two of the most feared complications for patients undergoing thyroid surgery are pain and postoperative nausea and vomiting. Thyroidectomy is considered high risk for postoperative nausea and vomiting, and recent studies have looked at adjuncts to treat pain, limit narcotic use, "fast-track" the surgical process, and enhance recovery without compromising the patient's safety. One such perioperative medication of interest is dexmedetomidine (Dex), a centrally acting α-2 agonist that has been associated with reducing pain and postoperative opioid consumption. Our aim was to examine the effectiveness of Dex as an adjunctive intraoperative medication to reduce postoperative narcotic requirements in patients undergoing outpatient thyroid surgery. ⋯ Our data suggest that intraoperative use of Dex reduced narcotic administration in the postoperative period among study population patients undergoing thyroidectomy.
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Case Reports
Lack of electrical interference between spinal cord stimulators and other implanted electrical pulse devices.
Spinal cord stimulators (SCSs) have been used for decades to treat chronic pain. SCSs are often used to treat patients with chronic back pain caused by failed back surgery syndrome, patients with complex regional pain syndrome, or individuals who are not candidates for surgery. SCSs are a relative contraindication in patients with another electrical pulse device. ⋯ The second case was a nonsurgical candidate with a pacemaker who received an SCS to help with lower back pain due to an occupational injury. The third case was a patient with complex regional pain syndrome and a bladder stimulator with a previous SCS who received a revision to help manage the pain. In all these patients, pain scores significantly improved after the trial.
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The purpose of this case report is to educate fellow anesthesiologists of a complicated differential diagnosis for sudden cardiovascular collapse after spinal anesthesia. We report a case where anaphylaxis occurred while under spinal anesthesia and resulted in difficult resuscitation. A 58-year-old woman undergoing bilateral knee replacements under spinal anesthesia experienced sudden seizure and cardiovascular collapse from acute anaphylactic shock while administering a cephalosporin. ⋯ Anaphylactic shock under spinal anesthesia is an acute and life-threatening complication, worsened by the spinal-induced sympathectomy, and aggressive resuscitation is warranted. Despite the presence of overlapping symptoms of differential diagnoses, rapid identification of the cause of cardiovascular collapse is crucial given that resuscitation treatment modalities may conflict. Timing of antibiotic administration should be adjusted for spinal anesthesia cases to allow time to detect possible anaphylaxis.