Initial experience in Brazil with the Helex septal occluder for percutaneous occlusion of atrial septal defects

Pedra, Carlos A. C.; Pedra, Simone Fontes; Esteves, César A.; Chamié, Francisco; Ramos, Sérgio; Pontes, Sérgio C.; Tress, João Carlos; Braga, Sérgio L. N.; Latson, Larry; Fontes, Valmir F.

doi:10.1590/s0066-782x2003001300001

Cited by 16 publications

(14 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, percutaneous device closure has been the preferred choice in the treatment of the secundum ASDs with various devices in patients with sufficient rims [1,2,5,10,11]. Despite the significant refinement in device technology, there is no ideal device that closes all of the secundum ASDs without significant complications either in early and immediate term or in the long term.…”

Section: Discussionmentioning

confidence: 99%

“…Despite the significant refinement in device technology, there is no ideal device that closes all of the secundum ASDs without significant complications either in early and immediate term or in the long term. These complications are mostly device related such as embolization or dislocation of the device, thrombus formation and cardiac erosion [2,7,12]. Thus, the studies have been going on for the refinement of the patient selection criteria and development of the new devices in optimal structure and design for avoiding from device-related complications during and after the percutaneous closure.…”

Section: Discussionmentioning

confidence: 99%

“…The criteria for inclusion into the study were as follows: (1) the secundum ASD with significant left-to-right shunt causing right ventricular (RV) volume overload, (2) patients with sufficient total septal length and sufficient rims (at least 5-mm rim in multiple views), except the aortic rim and (3) a maximum two-dimensional diameter of the defect measured by TTE \ 25 mm prior to the procedure. No patient underwent transesophageal echocardiography (TEE) for patient selection prior to catheterization.…”

Section: Patient Cohortmentioning

confidence: 99%

“…The procedure is feasible and effective, even in patients with complex ASDs [1][2][3][4]. However, the procedure is not free of complications and problems with the current devices [5].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Initial Experience with the Nit-Occlud ASD-R: Short-Term Results

et al. 2016

View full text Add to dashboard Cite

We aim to assess the safety, feasibility and efficacy of the new Nit-Occlud ASD-R (NOASD-R) device. From 2014 to 2015, transcatheter closure of atrial septal defect (ASD) using the NOASD-R was performed in 30 consecutive patients. The standard deployment technique as the left upper pulmonary vein approach was used in 25 patients. Right upper pulmonary vein approach was required in five. The median age was 6 years (range 3.5-60 years), and median weight was 21.5 kg (14-79 kg). Implantation was successful in all patients. The median size of devices was 16 mm (12.0-26.0 mm). The mean device size/2D defect diameter ratio was 1.26 ± 0.09 (1.12-1.40). The mean device size/color flow diameter ratio was 1.07 ± 0.06 (range 1.0-1.22). Releasing problem was encountered in three patients. A device-related erosion on the day after the closure was observed in one patient. No further device-related complication (erosion, embolization or dislodgement of the device) was encountered in a median follow-up period of 10 months (range 2-14 months). Complete occlusion has occurred in all at follow-up. NOASD-R is a feasible and effective device for use in the transcatheter occlusion of moderate to large secundum ASDs in selected patients. The occurrence of the erosion on the right atrial roof may be due to the high localization of the device and the larger size of the right disk.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Patient Cohortmentioning

confidence: 99%

“…The procedure is feasible and effective, even in patients with complex ASDs [1][2][3][4]. However, the procedure is not free of complications and problems with the current devices [5].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Initial Experience with the Nit-Occlud ASD-R: Short-Term Results

et al. 2016

View full text Add to dashboard Cite

show abstract

“…(13) The GORE-Helex device consists of a single nitinol wire attached to a continuous tape of polytetrafluoroethylene that forms two hybrid discs in the shape of a spiral that, when released, attach themselves to each side of the fistula. (14) Because the GORE-Helex device is more malleable than is the Oclutech Figulla device, we believed the former would be more appropriate to close the tracheoesophageal fistula for two reasons: first, because the two organs involved presented motility; and second, because we were concerned that a rigid device might widen the fistula. (14) If our initial results are corroborated by future studies, this might be a promising technique for the endoscopic treatment of fistulas in the tracheobronchial tree.…”

Section: Casementioning

confidence: 99%

Tratamento endoscópico de fístulas da árvore traqueobrônquica com dispositivos para a correção de defeitos do septo interatrial: resultados preliminares

et al. 2009

View full text Add to dashboard Cite

fistulas ranges from 0 to 28%, (1,2) and the mortality rate ranges from 16 to 72%. Non-neoplastic tracheoesophageal fistulas can be congenital, (4,5) iatrogenic (6) or related to thoracic trauma. Once such a fistula has been diagnosed, surgical closure is formally indicated. IntroductionFistulas in the tracheobronchial tree have a multifactorial etiology and present a variable incidence in the literature. The related morbidity and mortality are high. Bronchopleural fistulas usually result from surgical procedures involving pulmonary resection; the incidence of these Endoscopic treatment of tracheobronchial tree fistulas using atrial septal defect occluders: preliminary results* AbstractFistulas in the tracheobronchial tree (bronchopleural and tracheoesophageal fistulas) have a multifactorial etiology and present a variable incidence in the literature. In general, the related morbidity and mortality are high. Once such a fistula has been diagnosed, surgical closure is formally indicated. However, the clinical status of affected patients is usually unfavorable, which precludes the use of additional, extensive surgical interventions. In addition, attempts at endoscopic closure of these fistulas have seldom been successful, especially when the fistula is large in diameter. We report the cases of three patients submitted to endoscopic closure of fistulas, two of which were larger than 10 mm in diameter, by means of the insertion of atrial septal defect occluders. The procedure was minimally invasive, and the initial results were positive. The results indicate that this is a promising technique for the resolution of tracheobronchial tree fistulas.Keywords: Bronchial fistula; Tracheoesophageal fistula; Bronchoscopy; Respiratory therapy. ResumoAs fístulas da árvore traqueobrônquica, sejam elas broncopleurais ou traqueoesofágicas, apresentam etiologia multifatorial, com incidência variável na literatura. Em geral, apresentam alta morbidade e mortalidade, com indicação formal de correção cirúrgica. Entretanto, a condição clínica dos pacientes muitas vezes não permite uma reintervenção cirúrgica de grande porte. Além disso, as tentativas de fechamento endoscópico raramente têm sucesso, principalmente em fístulas de grande diâmetro. Relatamos os casos de três pacientes submetidos ao fechamento endoscópico de fístulas, sendo duas maiores que 10 mm, com a aplicação de dispositivos oclusores utilizados na cardiologia intervencionista, de forma minimamente invasiva e com resultados iniciais positivos. Esses dados sinalizam que essa pode ser uma técnica promissora na resolução de fístulas da árvore traqueobrônquica.

show abstract