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[Blood flow parameters in ocular vessels of patients with glaucoma].
Klin Oczna. 1999; 101(6):445-9.KO

Abstract

PURPOSE

To determine Doppler flow parameters in ocular vessels of glaucomatous patients.

MATERIAL AND METHODS

38 glaucomatous patients, aged 64 +/- 16, and 57 healthy volunteers were examined with 7.5 MHz linear-array probe. Consistently identified arterial structures included ophthalmic artery, central retinal artery and short posterior ciliary arteries. The peak systolic, end-diastolic and mean velocities were measured from Doppler spectra. Resistance and pulsatility indices were also determined.

RESULTS

End-diastolic and mean velocities in central retinal artery of glaucomatous eyes were: 1.5 +/- 1.9 cm/s, 4.0 +/- 2.0 cm/s, whereas in healthy eyes they were significantly higher: 3.5 +/- 1.0 cm/s, 5.4 +/- 1.5 cm/s, respectively. These velocities in short posterior ciliary arteries in glaucomatous patients were significantly lower: 2.4 +/- 2.3 cm/s, 5.6 +/- 2.2 cm/s, comparing to healthy subjects: 4.8 +/- 1.7 cm/s, 7.3 +/- 2.2 cm/s. Resistance and pulsatility indices in central retinal artery and short posterior ciliary arteries were significantly higher in the group of patients: RI = 0.85 +/- 0.18, PI = 2.11 +/- 0.92--in central retinal artery and RI = 0.81 +/- 0.18, PI = 1.96 +/- 0.91--in short posterior ciliary arteries, comparing to healthy subjects: RI = 0.61 +/- 0.08, PI = 1.20 +/- 0.17--in central retinal artery, RI = 0.61 +/- 0.09, PI = 1.13 +/- 0.18--in short posterior ciliary arteries. Impedance indices were increasing progressively with intraocular pressure elevation. There were no significant differences of Doppler blood flow parameters in ophthalmic artery between patients and control group.

CONCLUSIONS

Blood flow velocities in central retinal and short posterior ciliary arteries are lower, and resistance and pulsatility indices are higher in glaucomatous eyes in comparison to healthy subjects, whereas in ophthalmic artery doppler parameters are similar in both groups.

Authors+Show Affiliations

Zakladu Radiologii AM w Białymstoku.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

pol

PubMed ID

10786053

Citation

Ustymowicz, A, et al. "[Blood Flow Parameters in Ocular Vessels of Patients With Glaucoma]." Klinika Oczna, vol. 101, no. 6, 1999, pp. 445-9.
Ustymowicz A, Krejza J, Tarasów E, et al. [Blood flow parameters in ocular vessels of patients with glaucoma]. Klin Oczna. 1999;101(6):445-9.
Ustymowicz, A., Krejza, J., Tarasów, E., Mariak, Z., Zalewska, R., Proniewska-Skretek, E., & Stankiewicz, A. (1999). [Blood flow parameters in ocular vessels of patients with glaucoma]. Klinika Oczna, 101(6), 445-9.
Ustymowicz A, et al. [Blood Flow Parameters in Ocular Vessels of Patients With Glaucoma]. Klin Oczna. 1999;101(6):445-9. PubMed PMID: 10786053.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Blood flow parameters in ocular vessels of patients with glaucoma]. AU - Ustymowicz,A, AU - Krejza,J, AU - Tarasów,E, AU - Mariak,Z, AU - Zalewska,R, AU - Proniewska-Skretek,E, AU - Stankiewicz,A, PY - 2000/4/29/pubmed PY - 2000/7/6/medline PY - 2000/4/29/entrez SP - 445 EP - 9 JF - Klinika oczna JO - Klin Oczna VL - 101 IS - 6 N2 - PURPOSE: To determine Doppler flow parameters in ocular vessels of glaucomatous patients. MATERIAL AND METHODS: 38 glaucomatous patients, aged 64 +/- 16, and 57 healthy volunteers were examined with 7.5 MHz linear-array probe. Consistently identified arterial structures included ophthalmic artery, central retinal artery and short posterior ciliary arteries. The peak systolic, end-diastolic and mean velocities were measured from Doppler spectra. Resistance and pulsatility indices were also determined. RESULTS: End-diastolic and mean velocities in central retinal artery of glaucomatous eyes were: 1.5 +/- 1.9 cm/s, 4.0 +/- 2.0 cm/s, whereas in healthy eyes they were significantly higher: 3.5 +/- 1.0 cm/s, 5.4 +/- 1.5 cm/s, respectively. These velocities in short posterior ciliary arteries in glaucomatous patients were significantly lower: 2.4 +/- 2.3 cm/s, 5.6 +/- 2.2 cm/s, comparing to healthy subjects: 4.8 +/- 1.7 cm/s, 7.3 +/- 2.2 cm/s. Resistance and pulsatility indices in central retinal artery and short posterior ciliary arteries were significantly higher in the group of patients: RI = 0.85 +/- 0.18, PI = 2.11 +/- 0.92--in central retinal artery and RI = 0.81 +/- 0.18, PI = 1.96 +/- 0.91--in short posterior ciliary arteries, comparing to healthy subjects: RI = 0.61 +/- 0.08, PI = 1.20 +/- 0.17--in central retinal artery, RI = 0.61 +/- 0.09, PI = 1.13 +/- 0.18--in short posterior ciliary arteries. Impedance indices were increasing progressively with intraocular pressure elevation. There were no significant differences of Doppler blood flow parameters in ophthalmic artery between patients and control group. CONCLUSIONS: Blood flow velocities in central retinal and short posterior ciliary arteries are lower, and resistance and pulsatility indices are higher in glaucomatous eyes in comparison to healthy subjects, whereas in ophthalmic artery doppler parameters are similar in both groups. SN - 0023-2157 UR - https://www.unboundmedicine.com/medline/citation/10786053/[Blood_flow_parameters_in_ocular_vessels_of_patients_with_glaucoma]_ L2 - http://www.diseaseinfosearch.org/result/3065 DB - PRIME DP - Unbound Medicine ER -