Treatment of Seven Patients with Coarctation of the Aorta Treated Using a Mexican-made Platinum/Iridium Stent

Abundes-Velasco, Arturo; Zabal-Cerdeira, Carlos; García-Montes, José Antonio; Ríos-Ibarra, Manuel Odin De los; Gallegos, Joel Estrada; Peña, Germán Quintana

doi:10.1016/j.arcmed.2007.06.002

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…We have an extensive experience on successfully working with platinum/iridium stents manufactured by hand for coronary, aortic, and peripheral arteries [5][6][7] . As of 2014, a group from the National Institute of Cardiology (INC) associated with GSE Biomedical and the Technological Institute of Higher Studies of Monterrey (ITESM), all in Mexico, worked on the design and development of a Mexican coronary stent, using as a guide the methodology based on "quality function deployment."…”

Section: Introductionmentioning

confidence: 99%

Human Pilot Study of Bare-Metal Stent: INC-01

Abundes-Velasco¹,

Gaspar-Hernández²,

Martínez-Ríos³

et al. 2020

RIC

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Background:The cost of performing a percutaneous coronary intervention is considerably high for the patient as well as for health systems, which have promoted the development of local technology to help meet the need for these devices. Methods:The INC-01 bare-metal stent was developed at the National Institute of Cardiology in Mexico City and was first implanted on porcine models with technical success in 100% of the evaluated parameters. Presentation of Cases: We present the first three cases of patients with ischemic heart disease, to whom the INC-01 bare-metal stent was implanted. Intracoronary ultrasonography was performed post-stent implantation, showing all the characteristics of implant success during evaluation and clinical follow-up. Conclusions: Angiography and intracoronary ultrasound were carried out demonstrating that the INC-01 bare-metal stent has physical, biological, and histological characteristics similar to those found in commercial metallic stents. (REV INVEST CLIN. 2020;72(1):32-6)

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Section: Introductionmentioning

confidence: 99%

Human Pilot Study of Bare-Metal Stent: INC-01

Abundes-Velasco¹,

Gaspar-Hernández²,

Martínez-Ríos³

et al. 2020

RIC

Self Cite

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“…Noting that Pt-based cisplatin drugs have immunochemo-and radio-therapeutic effects of use in improving loco-regional and systemic tumour control (Abundes-Velasco et al 2007;Bhide et al, 2012;Guida et al, 2008), we further explore the potential of flat fibres for investigation of the high-Z photoelectron-generated local dose enhancement. In this we use nm-thick Pt-coatings to the silica fibre dosimeters.…”

Section: Introductionmentioning

confidence: 99%

High sensitivity flat SiO2 fibres for medical dosimetry

Sani

Alalawi

A.R

et al. 2014

Radiation Physics and Chemistry

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Studies of a novel undoped flat fibre fabricated for medical dosimetry. Investigation of the TL response of the undoped flat fibres, TLD-100 chips and Ge-doped fibres in megavoltage potentials. The sensitivity of the flat fibres is found to be markedly higher than that of Ge-doped fibre, being comparable to the TLD-100. a r t i c l e i n f o t r a c tWe describe investigation of a novel undoped flat fibre fabricated for medical radiation dosimetry. Using high energy X-ray beams generated at a potential of 6 MV, comparison has been made of the TL yield of silica flat fibres, TLD-100 chips and Ge-doped silica fibres. The flat fibres provide competitive TL yield to that of TLD-100 chips, being some 100 times that of the Ge-doped fibres. Pt-coated flat fibres have then been used to increase photoelectron production and hence local dose deposition, obtaining significant increase in dose sensitivity over that of undoped flat fibres. Using 250 kVp X-ray beams, the TL yield reveals a progressive linear increase in dose for Pt thicknesses from 20 nm up to 80 nm. The dose enhancement factor (DEF) of (0.01507 0.0003) nm À 1 Pt is comparable to that obtained using gold, agreeing at the 1% level with the value expected on the basis of photoelectron generation. Finally, X-ray photoelectron spectroscopy (XPS) has been employed to characterize the surface oxidation state of the fibre medium. The charge state of Si2p was found to lie on 103.86 eV of binding energy and the atomic percentage obtained from the XPS analysis is 22.41%.

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A Systematic Review and Meta-analysis on Stenting for Aortic Coarctation Management in Adults

et al. 2023

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Purpose: Endovascular treatment of aortic coarctation (CoA) constitutes a valuable alternative with low morbidity and mortality. The aim of this systematic review and meta-analysis was to assess the technical success, re-intervention, and mortality after stenting for CoA in adults. Materials and Methods: The Preferred Reporting Items for Systematic Reviews and Meta-analysis statement and PICO (patient, intervention, comparison, outcome) model were followed. An English literature data search was conducted, using PubMed, EMBASE, and CENTRAL, until December 30, 2021. Only studies reporting on stenting, for native or recurrent CoA, in adults were included. The risk of bias was assessed using the Newcastle-Ottawa Scale. A proportional meta-analysis was performed to assess the outcomes. Primary outcomes were technical success, intra-operative pressure gradient and complications, and 30-day mortality. Results: Twenty-seven articles (705 patients) were included (64.0% males, 34.0±13.6 years). Native CoA was present in 65.7%. Technical success was 97% (95% confidence interval [CI], 0.96%–0.99%; p<0.001, I2=9.49%). Six (odds ratio [OR]: 1%; 95% CI, 0.00%–0.02%; p=0.002, I2=0%) ruptures and 10 dissections (OR: 2%; 95% CI, 0.001%–0.02%; p<0.001, I2=0%) were reported. The intra-operative and 30-day mortality were 1% (95% CI, 0.00%–0.02%; p=0.003, I2=0%) and 1% (95% CI, 0.00%–0.02%; p=0.004, I2=0%), respectively. The median follow-up was 29 months. Sixty-eight re-interventions (OR: 8%; 95% CI, 0.05%–0.10%; p<0.001, I2=35.99%) were performed; 95.5% were endovascular. Seven deaths were reported (OR: 2%; 95% CI, 0.00%–0.03%; p=0.008, I2=0%). Conclusion: Stenting for CoA in adults presents high technical success and the intra-operative and 30-day mortality rates were acceptable. During the midterm follow-up, the re-intervention rate was acceptable, and mortality was low. Clinical Impact Aortic coarctation is a quite common heart defect that may be diagnosed in adult patients, as a first diagnosis in native cases or as a recurrent after previous repair. Endovascular management using plain angioplasty has been associated to a high intra-operative complication and re-intervention rate. Stenting in this analysis seems to be safe and effective as is related a high technical success rate, exceeding 95%, with a low intra-operative complication and death rate. During the mid-term follow-up, the re-interventions rate is estimated at less than 10% while most cases are managed using endovascular means. Further analyses are needed on the impact of stent type on endovascular repair outcomes.

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Treatment of Seven Patients with Coarctation of the Aorta Treated Using a Mexican-made Platinum/Iridium Stent

Cited by 3 publications

References 10 publications

Human Pilot Study of Bare-Metal Stent: INC-01

Human Pilot Study of Bare-Metal Stent: INC-01

High sensitivity flat SiO2 fibres for medical dosimetry

A Systematic Review and Meta-analysis on Stenting for Aortic Coarctation Management in Adults

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