Effects of coronary artery bypass grafting surgery on retinal vascular caliber, ocular pulse amplitude and retinal thickness measurements

Abstract

CABG surgery does not affect retinal structures and pulsatile ocular blood flow in the long-term follow-up.

The effect of off-pump coronary bypass graft surgery on subfoveal choroidal thickness, ganglion cell complex, and retinal nerve fiber layer thickness

“…Although no studies on the effect of off-pump surgery on RNFL thinning in off-pump surgery, on-pump surgery’s effects on RNFL are conflicting, a study by Buyukates et al , 9 which had a similar design to ours showed significant thinning that returned to normal 1 month after surgery in all but the inferior quadrant. In a study by Pekel et al , 6 in which RNFL thickness 1 month after the coronary bypass was compared to healthy controls, they found no significant difference. Uzun et al 40 also found no significant change in RNFL thickness 1 month after an on-pump coronary artery bypass.…”

“…4,5 Hemodynamic changes and the systemic inflammatory response after on-pump surgery have been postulated to cause changes in retinal and choroidal circulation. 6,7 Purtscher-like retinopathy is a prominent example of the effect of onpump CABG-related inflammatory response on the retina. 8 Studies examining the retinal nerve fiber layer and choroidal thickness after on-pump coronary artery bypass graft surgery have shown no deleterious effects on short-term follow-up.…”

“…8 Studies examining the retinal nerve fiber layer and choroidal thickness after on-pump coronary artery bypass graft surgery have shown no deleterious effects on short-term follow-up. 6,7,9 OPCAB is believed to decrease end-organ dysfunction by protecting against the adverse effects of ECC seen in on-pump patients. 4 Neurological outcomes in patients treated with OPCAB have also been found to be superior to on-pump coronary bypass 10 ; changes in retinal nerve fiber layer (RNFL) and ganglion cell complex (GCC) have been associated with neurological diseases such as Alzheimer, multiple sclerosis, and Parkinson's disease [11][12][13] ; and the assessment of these layers after OPCAB may give us further insight into the effects of surgery on neurological sequelae as well as the optic nerve.…”

Effect of Transcatheter Aortic Valve Replacement on Retinal Layer Thickness Measured by Optical Coherence Tomography

“…The relationship between cardiovascular risk factors such as age, sex, systemic hypertension, cholesterol, history of coronary artery disease, myocardial infarction, and diabetes mellitus was assessed with RNFL, GCC, and macular thicknesses. [6][7][8] There is no article about the effects of TAVR procedure on retinal layers in the literature. The purpose of this study was to evaluate macular thickness, GCC, and RNFL layer thicknesses before and after TAVR.…”

Appropriate evaluation of ocular parameters in coronary artery bypass grafting surgery patients

“…We read with great interest the recently published article “Effects of coronary artery bypass grafting surgery on retinal vascular caliber, ocular pulse amplitude and retinal thickness measurements” by Pekel et al 1 In this study, the researchers analyzed retinal vascular caliber (RVC), ocular pulse amplitude (OPA), peripapillary retinal nerve fiber layer (RNFL) and macular thickness in coronary artery bypass grafting (CABG) surgery patients. In conclusion, the authors stated that CABG surgery did not affect retinal thickness, retinal vessels or pulsatile ocular blood flow in the long-term follow-up.…”