Masui. The Japanese journal of anesthesiology
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Review
[Anesthetic management of patients with dilated cardiomyopathy undergoing non-cardiac surgery].
There is little information on the perioperative management of patients with dilated cardiomyopathy (DCM) undergoing non-cardiac surgery. The presence of a history or signs of heart failure and un-diagnosed DCM preoperatively, may be associated with an increased risk during non-cardiac surgery. In these patients, preoperative assessment of LV function, including echocardiography, and assessment of an individual's capacity to perform a spectrum of common daily tasks may be recommended to quantify the severity of systolic function. ⋯ To prevent perioperative low output syndrome, inotropic support, using catecholamines or phosphodiesterase inhibitors with or without vasodilators should be performed under careful monitoring. It is desirable to use a pulmonary-artery catheter during moderate to high risk surgery, because the optimum level of left ventricular pre-load is very narrow in these patients. Every effort must be made to detect postoperative heart failure by careful monitoring, including PAC, and physical examination.
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Peripartum cardiomyopathy (PPCM) is a rare life-threatening cardiomyopathy of unknown cause that occurs in the peripartum period in previously healthy women, and is becoming the leading cause of maternal death in U. S. ⋯ Anesthesiologists are supposed to be involved in the deliveries of those parturients with PPCM by providing labor analgesia, anesthesia for cesarean section and for heart transplantation. For cesarean section, either regional anesthesia or general anesthesia can be chosen, but low dose combined spinal-epidural analgesia has been reported to be a reliable choice.
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A 63-year-old man with von Recklinghausen disease was transported to the emergency department for swelling and pain of his right neck. Chest X-ray and computed tomography scan showed displacement of the trachea to the left by a tumor mass. Urgent airway management was required and fiberoptic intubation in awake condition was planned. ⋯ Suddenly, his consciousness level and Sp(O2) went down, therefore surgical airway was required. Due to pre-scanning, emergency cricothyroid membrane puncture could be performed immediately without any complications. We recommend ultrasound pre-scanning for cricothyroid membrane puncture in a patient with suspected tracheal displacement.
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Arrhythmogenic right ventricular cardiomyopathy is a genetic cardiomyopathy characterized by replacement of right ventricular myocardium by fibrofatty infiltrates, leading to significant ventricular arrhythmias with sudden death and right ventricular dysfunction. Elective operations should be postponed, until the arrhythmias and myocardial function are well tolerated. There has been no guideline on the anesthetic management of this serious, despite rare, disease and there are a few reports of the patients undergoing operation under either general or regional anesthesia. ⋯ It is essential to apply alpha-adrenergic agonists instead of beta-agonists for intraoperative hemodynamic support. The arrhythmias should be managed with beta-blockers or amiodarone. Adequate control of postoperative analgesia and nausea/vomiting is also important to suppress sympathetic activities.
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Comparative Study
[Safety of axillary and subclavian vein cannulation using real-time ultrasound guidance].
The safety of real-time ultrasound-guided subclavian and axillary vein cannulation as opposed to ultrasound-guided internal jugular vein cannulation has not received much attention. We retrospectively compared the safety and value of real-time ultrasound-guided cannulation in the subclavian and axillary veins with those of the landmark method. ⋯ Real-time ultrasound-guided subclavian and axillary vein cannulation is associated with a low incidence of complications similar to that of the internal jugular vein when competent individuals with appropriate training apply the technique.