Adrenaline Solution Irrigation and Bleeding During Sinus Surgery

The Effect of Intranasal Irrigation With Adrenaline Solution on Intraoperative Visualization and Bleeding During Functional Endoscopic Sinus Surgery

Intranasal irrigation with normal saline is routinely used in sinus surgery to clean the tip of the nasal endoscope and clear the surgical field from blood. The purpose of this study is to evaluate the difference in the surgical visualization, surgeon satisfaction and total blood loss when intraoperative irrigation was performed with a solution of normal saline with adrenaline as compared to irrigation with normal saline alone in FESS.

Functional Endoscopic Sinus Surgery (FESS) is a common, effective and minimally invasive surgical procedure indicated mainly to treat medically resistant chronic rhinosinusitis with or without nasal polyposis. The surgery is often performed under general anesthesia and proceeds in anatomically based surgical landmarks steps to facilitate drainage and ventilation of the paranasal sinuses. As any other endoscopic and laparoscopic procedures the operation requires dry surgical field to ensure accurate identification and visualization of structures and smooth surgical dissection progression. Intranasal bleeding during FESS will increase time of surgery and perioperative complications. Also it could affect healing process, increase adhesion formation and lengthening recovery period . Different methods and maneuvers have been described in the literature to reduce intra-operative bleeding during sinus surgery. These include: elevation of the patient's head, the use of bipolar cautery and powered instruments; premedication with beta blockers; a controlled hypotensive anesthesia technique; total intravenous anesthesia, topical hemostatic biomaterials and local application of vasoconstrictors. Adrenaline is one of the most commonly used topical vasoconstrective agent. Because systemic absorption of infiltrated adrenaline can give rise to a sudden increase in blood levels of catecholamine compared to topical instillation and thus various life-threatening complications, such as : cardiac arrhythmia, cardiac arrest, cardiomyopathy, pulmonary edema, and central retinal artery occlusion; many surgeons prefer to use instillation of adrenaline over infiltration in FESS

Patients will randomize into two groups based on computer generating numbers. Group 1 will have the usual method of irrigation with normal saline during surgery whereas group 2 have irrigation with 1:100 000 adrenaline in normal saline. The solution will be prepared by the senior resident through adding one ampule of 0.1 percent adrenaline in one liter bag of normal saline, which made the adrenaline concentration in the solution 1:100 000. The investigators who collected the data will be blinded to the content of both preparations. Irrigation with either solution will be used during the procedure through a 20 mL syringe attached to an olive tip long curved suction.

Adrenaline saline irrigation will be prepared by adding one ampule of 0.1 percent adrenaline in one liter bag of normal saline, which made the adrenaline concentration in the solution 1:100 000

The surgical field is flushed with 20 cc of Adrenaline saline irrigation. This is in contrast to the standard of care, normal saline irrigation.

The Boezaart intra-operative surgical field scale will be used to grade the level of bleeding during surgery. This 0 to 5-point scale will be used to outline the amount of suction required to rid the area of blood disrupting vision. A score of 0 is given for an area with no bleeding, 1 for slight bleeding with no suction required, 2 for slight bleeding requiring suction, 3 for moderate bleeding which improves for several seconds once suction has occurred, 4 for moderate bleeding which restarts directly after suctioning and 5 for severe bleeding which occurs faster then can be removed

The volume of blood loss will be measured every 30 minutes from the start of surgery for the duration of 2 hours

Inclusion Criteria: Patients with American Society of Anesthesiologist (ASA) classification <2 Patients with chronic with or without nasal polyposis refractory to medical treatment Exclusion Criteria: Patients with a history of of bleeding diathesis Patients with severe ischemic heart disease , pulmonary and renal disease Patients with tumours or vascular anomalies Patients with cystic fibrosis, allergic fungal sinusitis and granulomatous disorders Patients who are unable to speak, read and write English

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