Intraoperative changes in intraocular temperature during vitrectomy procedures with irrigating solutions differing in temperature
Journal Title: Офтальмологический журнал - Year 2019, Vol 0, Issue 1
Abstract
Background: Intraoperative intraocular media and irrigation fluid temperature monitoring is not performed during vitreoretinal surgery in current clinical practice. Purpose: To investigate intraoperative changes in intraocular temperature at the major steps of vitreoretinal surgery with irrigating solutions differing in temperature. Materials and Methods: Thirty-nine patients (39 eyes) were under observation before, during and after vitrectomy. Group 1 (20 patients; 20 eyes) and Group 2 (19 patients; 19 eyes) differed with respect to the baseline temperature (24.2 ± 0.52 °С, or 10.3 ± 1.1 °С, respectively) of the irrigating fluid. Room air temperature, irrigating fluid temperature, patient’s body temperature, blood pressure, heart rate and blood oxygen saturation, vitreous temperature, and duration of every step of the vitreoretinal procedure were recorded in all cases. Results: Vitrectomy with 24°C or 10°C irrigating solutions resulted in a substantial decrease in temperature in vitreous compartments to the level of moderate or deep hypothermia, respectively. In addition, immediately after vitrectomy, the lowest temperatures were found in the anterior vitreous, and were 30.1 ± 0.45 °С for the 24°C group and 24.37±0.52 °С for the 10°C group. Moreover, after additional surgical manipulations, in the presence of discontinued irrigation, the temperatures in the vitreous compartments were found to gradually increase. Conclusion: Vitreoretinal surgery is performed under conditions of induced uncontrolled local hypothermia, which requires intraoperative monitoring of intraocular temperature and irrigating solution temperature. During a vitroretinal procedure lasting up to 30 minutes, the intraocular contents may be safely cooled to the level of deep hypothermia.
Authors and Affiliations
L. I. Anatychuk, N. V. Pasyechnikova, R. Nazaretian, M. Umanets, R. R. Kobylianskyi, O. Zadorozhnyy
Keywords
Related Articles
- EP ID EP492196
- DOI 10.31288/oftalmolzh201913338
- Views 101
- Downloads 0
Efficacy of 577-nm retinal pigment epithelium laser photocoagulation in age-related maculopathy patients with various extents of morphological and functional loss
Background: There is no unanimously adopted approach to titrating laser settings in subthreshold retinal laser photocoagulation (LPC) without ophthalmoscopically visible fundus changes. The efficacy of this approach to t...
The 70th Anniversary of Functional Diagnostics Department of Filatov Institute of Eye Diseases and Tissue Therapy of NAMS of Ukraine
On the 30th of October 2018, Department of Functional Diagnostics of the Eye at SI “Filatov Institute of Eye Diseases and Tissue Therapy of NAMS of Ukraine” celebrated the 70th Anniversary.
Value of static automated perimetry in assessing visual impairments in patients with pituitary adenoma with suprasellar extension
Background: Pituitary adenoma (PA) is a neoplasm that develops from anterior pituitary cells and accounts for 20-25% of all intracranial extracerebral tumors. In a functioning PA, a specific clinical syndrome develops, a...
Neuroophthalmological symptoms of pituitary adenomas with supraparasellar extension
Background: Pituitary adenomas (PA) are benign neoplasms that arise from adenohypophysis; they are most common skull base tumors, and account for 12% to15% of all intracranial tumors. In PA with supraparasellar extension...
The effect of high intraocular pressure on enzymatic antioxidant system of uveal tissues in rabbits with experimental allergic uveitis
Background. Determining the influential mechanisms of high intraocular pressure on the development and course of non-infectious anterior uveitis is a relevant but understudied issue which requires a detailed study. Of pa...