Does Velocity of Dilatation Influence the Result of Dilatation?

Zocholl, G.; Jungbluth, Achim A.; Düx, M.; Schild, Hans H.; Thelen, M.

doi:10.1097/00004424-198812000-00005

Cited by 6 publications

(5 citation statements)

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“…The aim of this study is to histologically assess the vessel wall integrity of the UA and UV after dilatation with an angioplasty balloon catheter in an umbilical cord model. As a result of the UA and UV expansion, we hypothesize to observe mechanical damage in the form of umbilical vessel splitting, similar to the splitting reported by Zocholl et al 11 when dilating femoral arteries. Quantifying the degree of damage using these splittings could give an estimation of the loss of vessel integrity that occurs at dilations above routine clinical expansions (1-2 mm).…”

Section: Introductionsupporting

confidence: 86%

“…Concentric splitting after dilation of umbilical vessels, as described in our study, has not been previously reported by other vessel expansion experiments. On the contrary, other studies had reported radial splitting post-dilation, such as Zocholl et al’s 11 classification of vascular damage in dilated femoral arteries based on the depth of radial splitting. Because umbilical vessels displayed concentric rather than radial splitting, the classification system used by Zocholl could not be applied.…”

Section: Discussionmentioning

confidence: 88%

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Postnatal dilatation of umbilical cord vessels and its impact on wall integrity: Prerequisite for the artificial placenta

et al. 2018

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Section: Introductionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 88%

Postnatal dilatation of umbilical cord vessels and its impact on wall integrity: Prerequisite for the artificial placenta

et al. 2018

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“…Many modified procedures to overcome these complications of PTCA have been proposed. So far none of these seem to decrease the restenosis rate significantly [11][12][13][14]. Many other procedures for recanalization have been proposed as well-atherectomy [15,16], laser angioplasty [17], stenting [18], and rotablator [19].…”

Section: Introductionmentioning

confidence: 99%

Rupture of the arterial wall causes deflection in pressure time course during ex vivo balloon angioplasty

Steenhuijsen¹,

Vaartjes²,

Poortermans³

et al. 1997

Cathet. Cardiovasc. Diagn.

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A relation between restenosis and arterial lesions resulting from balloon angioplasty has been suggested in literature. Nevertheless, it is unclear to what extent angioplastyinduced arterial wall lesions contribute to the occurrence of restenosis. One problem is that arterial ruptures cannot be detected during balloon inflation. This study describes a method to detect ruptures in the arterial wall, based on deflections observable in the development of the balloonpressure. We performed ex vivo angioplasty with constant strain rate on 28 human femoral artery segments, showing deflections in 21 cases. In 20 cases wall rupture was confirmed histologically. From seven cases not showing deflections, four showed intact wall at microscopy. These figures result in a selectivity of the proposed method of 87 6 7% and a predictive value of the positive test of 95 6 5%. We conclude that this method can enhance detection of arterial rupture during ex vivo angioplasty and may become important clinically. Cathet. Cardiovasc. Diagn. 42:92-101, 1997. r 1997 Wiley-Liss, Inc.

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“…Between 25 an 40% of all patients with succesful first PT(C)A suffer from restenosis within 6 months [5,6,7]. Many modified procedures to ovemme these limitations of PT(C)A are proposed, but so far none of them seems to decrease rate of restenosis significantly [4,6,7]. Several reports suggest a relationship between restenosis and lesions resulting from balloon inflation.…”

Section: Introductionmentioning

confidence: 99%

A method to detect rupture of the arterial wall during balloon angioplasty

Steenhuijsen

Vaarjes

Poortermans³

et al.

Proceedings of 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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Restenosis limits the long-term success rate of Percutaneuos Transluminal (Coronary) Angioplasty (PT(C)A) significantly. A relation between ruptures resulting from PT(C)A and restenosis has been suggested in literature. We developed a method to detect arterial lesions during the balloon inflation by m u r i n g the pressure in the balloon. We state that a sudden drop in balloon pressure indicates an arterial rupture. Our preliminary results support this hypothesis in 92% of all cases. This method can be useful when investigating the relationship between modified PT(C)A procedures and occurence of lesions.

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Does Velocity of Dilatation Influence the Result of Dilatation?

Cited by 6 publications

References 0 publications

Postnatal dilatation of umbilical cord vessels and its impact on wall integrity: Prerequisite for the artificial placenta

Postnatal dilatation of umbilical cord vessels and its impact on wall integrity: Prerequisite for the artificial placenta

Rupture of the arterial wall causes deflection in pressure time course during ex vivo balloon angioplasty

A method to detect rupture of the arterial wall during balloon angioplasty

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