Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Case Reports
Intraoperative TEE for the management of pulmonary tumour embolism during chondroblastic osteosarcoma resection.
Chondroblastic osteosarcoma requiring surgical intervention is associated with a high risk of pulmonary tumour embolism. Rapid intraoperative diagnosis with transesophageal echocardiography (TEE) allowed changing the management plan and treatment of a life-threatening pathology. ⋯ This case report illustrates the important role TEE can play in the early diagnosis and subsequent surgical treatment of noncardiac emergencies. Intraoperative TEE can have a significant impact on the decision making process in life threatening emergencies.
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Case Reports
Acute upper airway angioedema secondary to acquired C1 esterase inhibitor deficiency: a case report.
Adverse reactions to local anesthetics are widely reported. We report a case of acute upper airway angioedema presumed to be due to the local anesthetic articaine, which was subsequently diagnosed as acquired C1 esterase inhibitor deficiency. ⋯ We report a case of acute upper airway angioedema secondary to C1 esterase inhibitor deficiency requiring emergency airway management. Anesthesiologists should consider C1 esterase inhibitor deficiency in the differential diagnosis of patients with airway edema and be familiar with the acute and prophylactic treatment of patients with this diagnosis.
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Volatile anesthetics can protect the heart against reperfusion injury. When sevoflurane is given for the first 15 min of reperfusion, a concentration corresponding to one minimum alveolar concentration (MAC) provides a maximum protective effect. The present study addresses the question of how long sevoflurane has to be administered to achieve the best cardioprotection. ⋯ Administration of 1 MAC sevoflurane for the first two minutes of reperfusion effectively protects the heart against reperfusion injury in rats in vivo. A longer administration time had lesser cardioprotective effects in this experimental model.
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Comparative Study
Postoperative pain and analgesic responses are similar in male and female Sprague-Dawley rats.
Controversy exists concerning the influence of gender on pain sensitivity and response to analgesics both in animal and human studies. The present study compares postoperative pain scores in male and female rats and how they respond to analgesic interventions. ⋯ The results of this study demonstrate that in Sprague-Dawley rats there are no gender differences in postoperative pain perception or the response to analgesics, indicating that this strain of rats can be used without introducing gender bias in studies of postoperative pain.