• Andrzej Drozdowski, Andrzej Sieśkiewicz, and Andrzej Siemiatkowski.
• Klinika Anestezjologii i Intensywnej Terapii, Uniwersytet Medyczny w Białymstoku. optymista678@wp.pl
• Anestezjol Intens Ter. 2011 Jan 1; 43 (1): 45-50.

AbstractFunctional endoscopic sinus surgery (FESS) is a surgical procedure, during which all necessary manipulations are performed while using a fibreoptic camera. The endoscope is inserted together with the surgical instruments, through the nasal cavity. During the surgery, bleeding has to be minimized, since even a small amount of blood may completely obstruct vision via the endoscope. Various approaches have been used to secure a dry operating field; among them are: topical vasoconstrictors, Fowler's position, alpha-and beta-adrenergic blockade, and preoperative steroids. All these methods are far from being effective and are associated with significant side effects. The recently approved approach to this problem is to combine total intravenous anaesthesia using propofol and remifentanil, together with esmolol. With the heart rate reduced to 60 bpm, excellent operative conditions can be achieved with moderate hypotension (MAP 65 mm Hg-8.7 kPa). Altered microcirculation and a low cardiac output are the principal underlying mechanisms in these cases.

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