| Investigation of Hemodynamic Changes in the Ophthalmic Artery using Color Doppler Imaging after Strabismus Surgery. |
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Nam Ho Lee, Su Na Lee |
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Department of Ophthalmology, Chungnam National University College of Medicine, Daejeon, Korea. irismd@cnuh.co.kr |
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| Abstract |
PURPOSE
We investigated hemodynamic changes in the ophthalmic artery (OA) using color Doppler imaging (CDI) after two horizontal rectus muscles surgery. METHODS: Eyes of the surgical group (n=18) underwent surgery on two horizontal rectus muscles, and the control group was the contralateral eyes. CDI of the OA was performed before operation and on postoperative days (POD) 1, 7 and 30. Peak systolic (Vmax), end diastolic (Vmin), and mean (Vmean) blood flow velocities were measured, and resistivity index (RI) and pulsatility index (PI) were calculated. RESULTS: Vmax, Vmin and Vmean were significantly higher, and RI and PI were significantly lower in the surgical group than in the control group on POD 1 (p< 0.05). In the surgical group, Vmax, Vmin and Vmean were significantly higher, and RI and PI were significantly lower, on POD 1 than those mesured on other days (p< 0.05). CONCLUSIONS: We showed that surgery on the two horizontal rectus muscles increased OA blood flow during the early postoperative period. |
| Key Words:
Anterior ciliary artery;Color Doppler imaging;Hemodynamic change;Ophthalmic artery;Strabismus |
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