Journal List > J Korean Ophthalmol Soc > v.56(8) > 1010051

Han, >Nam, and Kim: Results of Carotid Doppler and Lipid Profiles in Patients with Ocular Ischemic Disease

Abstract

Purpose

To analyze the findings of carotid Doppler and lipid profiles in patients with ischemic ocular disease and as well as the risk and correlation between cardiovascular and ischemic ocular diseases.

Methods

We analyzed the intima-media thickness (IMT) and existence of vascular stenosis using carotid Doppler and blood lip-id profiles of the study patients diagnosed with anterior ischemic optic neuropathy (AION group, n = 45), central retinal vein oc-clusion (CRVO group, n = 34), central retinal artery occlusion (CRAO group, n = 23), or ocular ischemic syndrome (OIS group, n = 27). The study patients who visited Chonbuk National University Hospital from January, 2010 to June, 2013 were compared with healthy control (control group, n = 107).

Results

The average age of the study patients was 60.0 ± 14.1 years and 56.1 ± 9.1 years for the controls. Ipsilateral common carotid artery-IMT was thicker in the OIS and CRAO groups than the control group ( p < 0.01 and <0.01, respectively). The num-ber of patients with carotid stenosis was highest in the OIS group (n = 17, 62.9%) followed by the CRAO group (n = 5, 21.7%), CRVO group (n = 2, 5.9%), and AION group (n = 1, 2.2%). No significant stenosis was found in the control group. Total blood cholesterol was not significantly different between the study patients and controls. Low-density lipoprotein cholesterol was high-er in every patient group than the control group ( p < 0.01, <0.01, <0.05 and <0.01, respectively).

Conclusions

The ischemic ocular disease likely precedes carotid artery disease and dyslipidemia. Therefore, general examina-tions such as carotid Doppler, lipid profile and risk factor evaluations are needed in patients with ischemic ocular disease.

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Figure 1.
Carotid Doppler findings according to group of patients. CCA = common carotid artery; IMT = intima-media thickness; AION = anterior ischemic optic neuropathy; CRVO = central retinal vein occlusions; CRAO = central retinal artery occlusions; OIS = ocular ischemic syndrome.
jkos-56-1215f1.tif
Table 1.
Constitution of ocular ischemic diseases (n = 129)
Diseases No. of patients (n) Constituent ratio (%)
AION 45 34
CRVO 34 26
CRAO 23 17
OIS 27 20

AION = anterior ischemic optic neuropathy; CRVO = central reti-nal vein occlusion; CRAO = central retinal artery occlusion; OIS = ocular ischemic syndrome.

Table 2.
Demographic features and baseline characteristics of patients
  AION (n = 45) CRVO (n = 34) CRAO (n = 23) OIS (n = 27) Control (n = 107) p-value
Age (years) 57.6 ± 12.2 57.5 ± 14.6 58.6 ± 16.2 61.5 ± 10.1 56.1 ± 9.1 0.264
Gender (M:F) 23:22 21:13 16:7 14:13 77:30 0.08
Diabetes mellitus (%) 16 (36%) 12 (35%) 8 (35%) 10 (37%) 16 (15%) 0.12
Hypertension (%) 24 (53%) 20 (59%) 14 (61%) 18 (67%) 35 (33%) 0.02
BMI 24.5 ± 3.8 24.4 ± 3.7 25.0 ± 2.9 25.3 ± 3.6 24.0 ± 3.3 0.406

Values are presented as mean ± SD unless otherwise indicated. Analyzed by analysis of variance (ANOVA) with bonferroni correction. AION = anterior ischemic optic neuropathy; CRVO = central retinal vein occlusions; CRAO = central retinal artery occlusions; OIS = ocu-lar ischemic syndrome; BMI = body mass index.

p-value < 0.05 (vs Control).

Table 3.
Carotid Doppler findings according to group of patients
AION (n = 45) CRVO (n = 34) CRAO (n = 23) OIS (n = 27) Control (n = 107)
Ipsilateral CCA-IMT (mm) 0.90 ± 0.31 0.87 ± 0.20 1.14 ± 0.46 1.37 ± 0.32 0.88 ± 0.33
CCA-IMT ≥1.1 mm (%) 6 (13.3) 4 (11.8) 9 (39.1) 21 (77.8) 13 (12.1)
Stenosis ≥50% (%) 1 (2.2) 2 (5.9) 5 (21.7) 17 (62.9) 0

Values are presented as mean ± SD unless otherwise indicated. Analyzed by analysis of variance (ANOVA) with bonferroni correction. AION = anterior ischemic optic neuropathy; CRVO = central retinal vein occlusions; CRAO = central retinal artery occlusions; OIS = ocu-lar ischemic syndrome; CCA = common carotid artery; IMT = intima-media thickness.

p-value < 0.05 (vs Control).

Table 4.
Characteristics of objects subdivided with carotid doppler results
  CCA-IMT <1.1 mm CCA-IMT ≥1.1 mm p-value
No. of patients (%) 182 (77.4) 54 (22.6)
Age (years) 55.6 ± 11.7 63.1 ± 9.3 <0.01
Sex (M:F) 113:69 37:17 0.294
Diabetus mellitus (%) 48 (26.5%) 14 (26.4%) 0.73
Hypertension (%) 84 (46.4%) 27 (50.9%) 0.98
BMI 24.4 ± 3.6 24.3 ± 2.9 0.56
Total cholesterol (mg/dL) 182.2 ± 33 189.9 ± 41.5 0.15
LDL cholesterol (mg/dL) 105.1 ± 36.4 123.5 ± 36.6 <0.01

Values are presented as mean ± SD unless otherwise indicated. Analyzed by Inderpendent t-test. CCA = common carotid artery; IMT = intima-media thickness; BMI = body mass index; LDL = low-density lipoprotein.

Table 5.
Laboratory findings according to group of patients
  AION (n = 45) CRVO (n = 34) CRAO (n = 23) OIS (n = 27) Control (n = 107) p-value
Total cholesterol (mg/dL) 193.8 ± 35.8 181.6 ± 39.6 173.8 ± 34.2 193.4 ± 38.4 180.3 ± 31.7 0.65
LDL (mg/dL) 119.1 ± 29.9* 122.5 ± 38.7* 118.7 ± 30.3* 127.3 ± 33.1* 94.4 ± 36.5 <0.01
Total cholesterol ≥200 mg/dL (%) LDL-cholesterol ≥130 mg/dL (%) 15 (33.3) 11 (24.4)* 6 (17.7)14 (41.2)* 3 (13)3 (13) 12 (44.4) 9 (33.3) 28 (26.2)4 (4.1) 0.064 <0.01

Values are presented as mean ± SD unless otherwise indicated. Analyzed by analysis of variance (ANOVA) with bonferroni correction. AION = anterior ischemic optic neuropathy; CRVO = central retinal vein occlusions; CRAO = central retinal artery occlusions; OIS = ocular ischemic syndrome; LDL = low-density lipoprotein.

p-value < 0.05 (vs. Control).

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