The Effects of Different End Tidal CO2 Values on Hemodynamics and Surgery in Endoscopic Endonasal Transsphenoidal Pituitary Surgery
Öz
Objective : We aimed to examine the effect of different intervals of end tidal CO2 ( etCO2 ) values on hemodynamics and surgery in endoscopic endonasal transsphenoidal pituitary surgery.
Material and Methods: Two groups were evaluated retrospectively according to the maximum etCO2 values at the time of sellar resection. Group 1: 21 patients, etCO 2 =25-37 mmHg and Group 2: 21 patients, etCO 2=38-50 mmHg. The demographic characteristics, mean arterial pressure (MAP), heart rate (HR), etCO2 , pCO2 at the time of anesthesia induction, sellar excision moment and pre-extubation periods , total amount of bleeding, ease of surgery (good-moderate-bad) obtained from computer records, anesthesia receipts and surgical reports.
Results: There was no difference between the two groups in terms of demographic data, complications or bleeding. A relationship was found between arterial pCO2 at the time of sellar excision. Surgical satisfaction was evaluated as "good" in 9 patients in Group 1 and 12 patients in Group 2.
Conclusion: High etCO 2 values (38-50 mmHg) facilitated surgical excision of the mass and did not affect hemodynamics. Surgery has increased satisfaction. Keeping EtCO2 slightly higher than normal may be a good choice in these cases. Well-designed prospective studies are needed.
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