More experienced physician: endotracheal intubation with video fiberscope Assoc. Dr. The group in which Ersin Köksal performed endotracheal intubation using a video fiberscope( Karl Storz GmbH &Co. KG, Tuttlingen, Germany) consisted of 15 patients.Endotracheal intubation was performed by two practitioners using two different devices. Intubation times, number of attempts, failed attempts, postoperative complications and hemodynamic responses were recorded.

More experienced physician: Endotracheal intubation with DCI video laryngoscopeThe group in which Assoc. Dr. Ersin Köksal performed endotracheal intubation using a DCI video laryngoscope(Storz DCI Video Laryngoscope (Karl Storz GmbH &Co. KG, Tuttlingen, Germany) consisted of 15 patients.Endotracheal intubation was performed by two practitioners using two different devices. Intubation times, number of attempts, failed attempts, postoperative complications and hemodynamic responses were recorded.

Endotracheal intubation with video fiberscope: The group in which DrHalil Cebeci applied endotracheal intubation using a video fiberscope( Karl Storz GmbH &Co. KG, Tuttlingen, Germany) consisted of 15 patients. Endotracheal intubation was performed by two practitioners using two different devices. Intubation times, number of attempts, failed attempts, postoperative complications and hemodynamic responses were recorded.

One of the classical alternatives to laryngoscopy in difficult endotracheal intubation is video laryngoscopyvideo fiberscope( Karl Storz GmbH &Co. KG, Tuttlingen, Germany). Reaching the image from the patient with pre- and from the cervical point of view, or from the cervical point of view, to be completed with a good view from a large screen to be completed with an image before and within intubation. It also facilitates learning in education.

The moment when the endotracheal intubation tube was passed between the vocal cords following the vocal cord image obtained with the device was recorded in seconds. In endotracheal intubation performed with a video fiberscope, the end of the fiberscope with a camera passing through the vocal cords, and in endotracheal intubation performed with a DCI video laryngoscope, the intubation tube passing between the vocal cords was counted as successful intubation time.

The procedure will be considered unsuccessful if intubation is unsuccessful in three attempts, if the intubation process exceeds three minutes, or if the peripheral oxygen saturation (SpO2) is <90% during this period. If this situation was encountered, it was planned to ventilate the patient with an anesthesia mask until the oxygen saturation approached 100% and to use alternative airway devices.

The time from the moment the device entered between the patient's anterior incisors until the vocal cords were seen was recorded in seconds.

Hemodynamic parameters; heart rate (/min), systolic blood pressure (mmHg), diastolic blood pressure (mmHg), mean arterial pressure (mmHg), and SpO2 were recorded before induction (baseline), during intubation, at 1st, 2nd and 5th minutes after intubation

Oximetry is a convenient and painless alternative to needlesticks, is simple to use, and provides immediate data. These advantages make oximetry an invaluable tool for determination the client's need for oxygen therapy and assessing effectiveness of therapy. The oximeter registers arterial oxygen saturation (SaO2). An SaO2 greater than 95% is considered normal, whereas values lower than 93% usually indicate the need for oxygen therapy and further assessment.