Expandable prosthesis for sutureless anastomosis in thoracic aorta prosthetic substitution

Nazari, Stefano; Luzzana, F; Banfı, Carlo; Mourad, Z; Salvi, S; Gaspari, A; Nazari-Coerezza, Francesca

doi:10.1016/s1010-7940(96)80404-0

Cited by 15 publications

(10 citation statements)

References 8 publications

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“…(fig 7) are related both to the elastic retraction of the vessel when is clamped, already outlined in the Payr report (Payr, 1900), and to the floppy consistency of the vascular wall that requires a further significant gap to be left between the clamped internal aortic wall and the external ring diameter to allow the ring to be easily slipped into the vascular stump without friction. Accordingly a ringed prosthesis with a diameter significantly smaller than appropriate must be used to keep the cross-clamping time shorter than that attainable with manual suturing (Nazari, 1996a). Thus when the aorta is reperfused, the resulting discrepancy between perfused vascular stump and intraluminal ring diameter generates conditions greatly favouring coupling instability ( fig.…”

Section: Intraluminal Ringed Prosthesismentioning

confidence: 99%

“…The device underwent many modifications and refinements, finally resulting in three main models (Type I, II and III) applying the same working mechanism, but with different shape to fit with all aorta segments as well as special conditions of use. Extensive "ex vivo" and "in vivo" animal experiments (Nazari et al 1994(Nazari et al , 1996a(Nazari et al , 1996d(Nazari et al , 1997(Nazari et al , 2006Rossella et al 2008) were carried out and few clinical cases were also successfully treated with this device (Nazari et al1999;Aluffi et al, 2002, Buniva et al 2002.…”

Section: New Expandable Devices For Easier Safer and More Efficient mentioning

confidence: 99%

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New Approaches for Treatment and Prevention of Aortic Aneurysms

Nazari¹

2012

Front Lines of Thoracic Surgery

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Section: Intraluminal Ringed Prosthesismentioning

confidence: 99%

Section: New Expandable Devices For Easier Safer and More Efficient mentioning

confidence: 99%

New Approaches for Treatment and Prevention of Aortic Aneurysms

Nazari¹

2012

Front Lines of Thoracic Surgery

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“…Facts mechanically implicit in the method (fig 7) are related both to the elastic retraction of the vessel when is clamped, already outlined in the Payr report (Payr, 1900), and to the floppy consistency of the vascular wall that requires a further significant gap to be left between the clamped internal aortic wall and the external ring diameter to allow the ring to be easily slipped into the vascular stump without friction. Accordingly a ringed prosthesis with a diameter significantly smaller than appropriate must be used to keep the cross-clamping time shorter than that attainable with manual suturing (Nazari, 1996a). Thus when the aorta is reperfused, the resulting discrepancy between perfused vascular stump and intraluminal ring diameter generates conditions greatly favouring coupling instability (fig.…”

Section: Intraluminal Ringed Prosthesismentioning

confidence: 99%

Front Lines of Thoracic Surgery

Nazari¹

2012

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focused in particular on: nutritional status evaluation, one lung anesthesia (new endobronchial tube), lung transplant (funded by Italian Ministry of Health: bronchial art. revascularization, extracorporeal lung preservation, vascular stapler for pulmonary artery anastomosis), lung cancer surgery (SVCava and Pancoast t. resections, bronchoplastic procedures), and aortic surgery (endovascular "net" prosthesis, expandable anastomotic devices). He had stages at the Division of Organ Transplantation Univ. of Cincinnati (1973),

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“…facilitate the aortic insertion. 69 However, these techniques are not readily applicable to a minimally invasive approach.…”

Section: Multiple-mentioning

confidence: 99%

Minimally Invasive Vascular Surgery and the Evolution of Vascular Anastomosis Techniques

Elkouri¹,

Gloviczki²,

Chbat³

2002

Perspectives in Vascular Surgery and Endovascular Therapy

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The evolution of vascular surgery toward minimally invasive approaches appears to be inevitable. Thus, innovative and reliable minimally invasive anastomosis techniques are needed to facilitate minimally invasive vascular surgery. Current endovascular anastomosis techniques are limited by their reliance on suitable arteries for access and attachment. Their dependency on the fate of the arterial attachment sites is greater than for the conventionally sutured anastomosis. These limitations will be difficult to over come. Videoscopic anastomosis techniques may offer both the advantages of endovascular surgery in terms of rapid postoperative recovery and reliability of open-sutured anastomosis. With improved training and instrumentation, such as robots, semiautomatic or automatic anastomotic devices, the video scopic approaches will likely become technically easier. The chief disadvan tage of current open-sutured anastomoses is the invasive exposure required, elevated morbidity and mortality, and associated prolonged hospital stay and convalescence period. Development of automatic or semiautomatic anastomosis techniques could decrease the invasiveness of these operations. Further research will help understand the interaction of the artificial agents with the arterial wall and will define what constitutes a perfect and durable anastomosis. This, in turn, will allow for the ideal anastomosis technique to become reality, and for widespread application of minimally invasive approaches in vascular surgery.

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Expandable prosthesis for sutureless anastomosis in thoracic aorta prosthetic substitution

Cited by 15 publications

References 8 publications

New Approaches for Treatment and Prevention of Aortic Aneurysms

New Approaches for Treatment and Prevention of Aortic Aneurysms

Front Lines of Thoracic Surgery

Minimally Invasive Vascular Surgery and the Evolution of Vascular Anastomosis Techniques

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