1. Does steep Trendelenburg positioning effect the ocular hemodynamics and intraocular pressure in patients undergoing robotic cystectomy and robotic prostatectomy?
- Author
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M.E. Arslan, Yelda Yildiz, Muhammet Fuat Özcan, Serdar Bayraktar, Sinan Tan, Serkan Altinova, Canan Gurdal, Kemal Ener, Ziya Akbulut, Mevlana Derya Balbay, and Ayse Nur Ozcan
- Subjects
Male ,medicine.medical_specialty ,Central retinal artery ,Intraocular pressure ,Supine position ,Retinal Vein ,Central retinal vein ,Time Factors ,genetic structures ,Retinal Artery ,Urology ,medicine.medical_treatment ,Trendelenburg position ,Cystectomy ,Patient Positioning ,Head-Down Tilt ,03 medical and health sciences ,0302 clinical medicine ,Robotic Surgical Procedures ,030202 anesthesiology ,medicine.artery ,Medicine ,Humans ,Intraocular Pressure ,Aged ,Prostatectomy ,business.industry ,Middle Aged ,eye diseases ,Surgery ,medicine.anatomical_structure ,Nephrology ,030220 oncology & carcinogenesis ,Anesthesia ,Vascular Resistance ,business - Abstract
To examine the effect of steep Trendelenburg position (ST) on intraocular pressure (IOP), resistive index of the central retinal artery, and venous impedance index of the central retinal vein during robotic prostatectomy and cystectomy. A total of fifty-three male patients were included into the study (prostatectomy: 43, cystectomy: 10). During robotic surgery, the effect of the ST on IOP, resistive index of the central retinal artery (CRA-RI), and venous impedance index of the central retinal vein (CRV-VI) was prospectively examined. The measurement times of IOP are as follows: T1: before anesthesia while supine and awake; T2: anesthetized and supine; T3: anesthetized and ST; T4: anesthetized, ST, and intraperitoneal insufflation; T5: anesthetized in ST at the end of the procedure with CO2; T6: anesthetized in ST after desufflation; and T7: anesthetized supine before awakening. There was no difference between the IOP values of the right and left eyes in both groups. The highest IOP values were reached at T4 and T5. CRA-RI values were different, while CRV-VI values were similar at T1 and T4. Despite staying in the ST for a long time provided that the ophthalmologic examination was normal, ocular complication risk is low in robotic prostatectomy and cystectomy.
- Published
- 2016