Morphometric analysis of the right gastroepiploic artery and the internal mammary artery

Malhotra, Rajneesh; Bedi, Harinder Singh; Bazaz, Surinder; Jain, Sudhir; Trehan, Naresh

doi:10.1016/0003-4975(95)00935-3

Cited by 13 publications

(7 citation statements)

References 11 publications

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“…Our morphometric data revealed a significantly increased IMR, ITI and %LN in the six RA samples compared to the ITA samples suggesting a higher grade of intimal hyperplasia in the RA. These findings are in agreement with other studies showing a higher extent of intimal hyperplasia and atherosclerotic plaque formation in the RA compared to the ITA [13,17] 0.05 ± 0.1 for the ITA in 25 patients [18] which is comparable to our results. Thus, our samples of the RA showed a significantly increased degree of intimal hyperplasia compared to the ITA and these results correspond well with previously reported data.…”

Section: Morphometric Analysissupporting

confidence: 96%

Identification of an up-regulated anti-apoptotic network in the internal thoracic artery

Krane

Dummler

Dreßen

et al. 2011

International Journal of Cardiology

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Section: Morphometric Analysissupporting

confidence: 96%

Identification of an up-regulated anti-apoptotic network in the internal thoracic artery

Krane

Dummler

Dreßen

et al. 2011

International Journal of Cardiology

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“…Previous investigators have suggested that the intima-to-media ratio is the most sensitive method available for grading atherosclerosis. [17][18][19][20] In this study, 3 methods were used to evaluate the degree of intimal thickening and atherosclerosis: (1) percentage of luminal narrowing, (2) intimal thickness index (ITI), and (3) intima-to-media ratio (IMR) ( Figure 2). [17][18][19][20] The severity indices were calculated from the most severely diseased section of the specimens using the…”

Section: Morphometric Analysismentioning

confidence: 99%

“…The ITI and the IMR are alternative methods of comparing intimal disease in different vascular beds. 19,20 Of these 2, the ITI is more accurate because it uses areas of intima and media rather than width. However, when comparing the RA and the ITA, an assumption is made that any thickening of the media (the denominator in both ITI and IMR), as for example in hypertension, occurs to the same degree in both vascular beds.…”

Section: Morphometric Analysismentioning

confidence: 99%

Comparative Histopathology of Radial Artery Versus Internal Thoracic Artery and Risk Factors for Development of Intimal Hyperplasia and Atherosclerosis

Ruengsakulrach

Sinclair²,

Komeda³

et al. 1999

Circulation

142

146

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Background-In this study, we examined the comparative histopathology, morphometry, and risk factors for the development of intimal hyperplasia and atherosclerosis in the radial artery (RA) and the internal thoracic artery (ITA). Methods and Results-Paired specimens of RAs and ITAs, obtained from 150 patients who underwent CABG, were evaluated with histopathology; 110 pairs of arteries were suitable for morphometric analysis. The severity of disease was evaluated on the basis of percentage of luminal narrowing, intimal thickness index, and intima-to-media ratio. Risk factors were determined with stepwise linear regression. Intimal hyperplasia was seen in 141 RAs (94%) and 103 ITAs (69%) (PϽ0.001). Atherosclerosis was seen in 5% of RAs and 0.7% of ITAs (Pϭ0.04). Medial calcification was found only in RAs (20 of 150, 13.3%) (PϽ0.001). Morphometric analysis showed that compared with ITAs, RAs had a significantly higher intimal area, medial area, percentage of luminal narrowing, intimal thickness index, and intima-to-media ratio (all PϽ0.001) Factors found to be significant (PϽ0.05) predictors of the 3 severity indices of intimal hyperplasia, including atherosclerosis, in RAs were peripheral vascular disease, smoking, age, and diabetes. Risk factors for intimal hyperplasia in ITAs were age and smoking. Conclusions-The RA is more likely to have atherosclerosis, intimal hyperplasia, and medial calcification than the ITA. Morphometric analysis indices showed marked differences between the RA and the ITA. Care should be taken when selecting the RA as a conduit in CABG, particularly in patients who are elderly, diabetic, smoke, or have peripheral vascular disease. (Circulation. 1999;100[suppl II]:II-139-II-144.

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“…On histological examination, the RGEA has a muscular media and a propensity for atherosclerosis. In contrast, the ITA has multiple elastic lamellae in an elastomuscular media 10 …”

Section: Methodsmentioning

confidence: 96%

“…In contrast, the ITA has multiple elastic lamellae in an elastomuscular media. 10 Van Son et al harvested the RGEA from 28 individuals randomly. The length of RGEA (from its origin at the gastroduodenal artery to the terminal anastomosis with the LGEA) varied from 17-24 cm (19 ± 2 cm).…”

Section: Introductionmentioning

confidence: 99%

The Right Gastroepiploic Artery in Coronary Artery Bypass Grafting

Sasaki

2008

Journal of Cardiac Surgery

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The right gastroepiploic artery (RGEA) has been used as a conduit in coronary artery bypass grafting. Although some reports presenting good results justify its use in clinical settings, there is still much concern about using the RGEA in bypass surgery. The RGEA demonstrates different behaviors from the internal thoracic artery (ITA) in bypass surgery due to its histological characteristics and anatomical difference, which might contribute to the long-term outcome. Now that left ITA (LITA) to left anterior descending artery (LAD) is the gold standard, other grafts are expected to cover the rest of the coronary arteries. It should be elucidated how we can use other grafts and what we can expect from them. RGEA, as an arterial graft, can be used as an in situ graft or a free graft. The RGEA is mainly used to graft to the right coronary artery (RCA) because of its anatomical position, and its patency is not inferior to that of the saphenous vein (SVG). The RGEA can cover the lateral walls when its length is long enough or by making a composite graft with other grafts. However, when used to graft to the LAD, its mid-term patency is not favorable.

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Morphometric analysis of the right gastroepiploic artery and the internal mammary artery

Cited by 13 publications

References 11 publications

Identification of an up-regulated anti-apoptotic network in the internal thoracic artery

Identification of an up-regulated anti-apoptotic network in the internal thoracic artery

Comparative Histopathology of Radial Artery Versus Internal Thoracic Artery and Risk Factors for Development of Intimal Hyperplasia and Atherosclerosis

The Right Gastroepiploic Artery in Coronary Artery Bypass Grafting

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