Tags

Type your tag names separated by a space and hit enter

[Color duplex of retrobulbar arteries in normal pressure and open angle glaucoma].
Klin Monbl Augenheilkd. 1998 Jun; 212(6):444-8.KM

Abstract

BACKGROUND

Various authors report that the glaucomatous loss of function is due to a chronic anterior ischemic optic neuropathy, being caused by a disturbed relationship between intraocular pressure and perfusion pressure in the posterior short ciliary arteries, which possibly leads to increased resistance in the ciliary vascular system. The authors attempt to test this hypothesis by measuring the vascular resistance (Resistance Index) in the ciliary vessel system by means of color Doppler sonography.

PATIENTS AND METHODS

35 eyes of 35 patients, suffering from open angle glaucoma (OAG), with a mean age of 65.3 years, were examined as well as 35 eyes of 35 patients with normal tension glaucoma (NTG), whose mean age was 65.8 years. Both glaucoma groups were compared to an age- and sex-matched control group of healthy volunteers. The color-Doppler measurements were performed with an Acuson 128 XP/10, which allows imaging of all retrobulbar arteries, the ophthalmic artery, the central retinal artery and the short posterior ciliary arteries, and also guarantees the precise calculation of blood flow velocity and resistive index (RI). The RI was statistically evaluated.

RESULTS

The resistance index of all retrobulbar arteries showed a statistically significant increase (p < 0.05) according to Wilcoxon's test in the OAG group as well as the NTG group.

CONCLUSIONS

Increased vascular resistance was found in all retrobulbar arteries in OAG and in NTG. These findings point out the pathognomonic importance of perfusion disturbance in glaucoma.

Authors+Show Affiliations

Universitätsklinik für Augenheilkunde Wien.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

ger

PubMed ID

9715464

Citation

Vécsei, P V., et al. "[Color Duplex of Retrobulbar Arteries in Normal Pressure and Open Angle Glaucoma]." Klinische Monatsblatter Fur Augenheilkunde, vol. 212, no. 6, 1998, pp. 444-8.
Vécsei PV, Hommer A, Reitner A, et al. [Color duplex of retrobulbar arteries in normal pressure and open angle glaucoma]. Klin Monbl Augenheilkd. 1998;212(6):444-8.
Vécsei, P. V., Hommer, A., Reitner, A., Kircher, K., Egger, S., Schneider, B., & Bettelheim, H. C. (1998). [Color duplex of retrobulbar arteries in normal pressure and open angle glaucoma]. Klinische Monatsblatter Fur Augenheilkunde, 212(6), 444-8.
Vécsei PV, et al. [Color Duplex of Retrobulbar Arteries in Normal Pressure and Open Angle Glaucoma]. Klin Monbl Augenheilkd. 1998;212(6):444-8. PubMed PMID: 9715464.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Color duplex of retrobulbar arteries in normal pressure and open angle glaucoma]. AU - Vécsei,P V, AU - Hommer,A, AU - Reitner,A, AU - Kircher,K, AU - Egger,S, AU - Schneider,B, AU - Bettelheim,H C, PY - 1998/8/26/pubmed PY - 1998/8/26/medline PY - 1998/8/26/entrez SP - 444 EP - 8 JF - Klinische Monatsblatter fur Augenheilkunde JO - Klin Monbl Augenheilkd VL - 212 IS - 6 N2 - BACKGROUND: Various authors report that the glaucomatous loss of function is due to a chronic anterior ischemic optic neuropathy, being caused by a disturbed relationship between intraocular pressure and perfusion pressure in the posterior short ciliary arteries, which possibly leads to increased resistance in the ciliary vascular system. The authors attempt to test this hypothesis by measuring the vascular resistance (Resistance Index) in the ciliary vessel system by means of color Doppler sonography. PATIENTS AND METHODS: 35 eyes of 35 patients, suffering from open angle glaucoma (OAG), with a mean age of 65.3 years, were examined as well as 35 eyes of 35 patients with normal tension glaucoma (NTG), whose mean age was 65.8 years. Both glaucoma groups were compared to an age- and sex-matched control group of healthy volunteers. The color-Doppler measurements were performed with an Acuson 128 XP/10, which allows imaging of all retrobulbar arteries, the ophthalmic artery, the central retinal artery and the short posterior ciliary arteries, and also guarantees the precise calculation of blood flow velocity and resistive index (RI). The RI was statistically evaluated. RESULTS: The resistance index of all retrobulbar arteries showed a statistically significant increase (p < 0.05) according to Wilcoxon's test in the OAG group as well as the NTG group. CONCLUSIONS: Increased vascular resistance was found in all retrobulbar arteries in OAG and in NTG. These findings point out the pathognomonic importance of perfusion disturbance in glaucoma. SN - 0023-2165 UR - https://www.unboundmedicine.com/medline/citation/9715464/[Color_duplex_of_retrobulbar_arteries_in_normal_pressure_and_open_angle_glaucoma]_ L2 - http://www.diseaseinfosearch.org/result/3065 DB - PRIME DP - Unbound Medicine ER -