Brazilian Journal of Pulmonology

ISSN (on-line): 1806-3756 | ISSN (printed): 1806-3713

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Back to the future: a case series of minimally invasive repair of pectus excavatum with regular instruments

De volta para o futuro: série de casos de reparo minimamente invasivo do pectus excavatum com instrumentos comuns

Miguel Lia Tedde1,a, Silvia Yukari Togoro1,b, Robert Stephen Eisinger2,c, Erica Mie Okumura1,d, Angelo Fernandes1,e, Paulo Manuel Pêgo-Fernandes1,f, Jose Ribas Milanez de Campos1,g

J Bras Pneumol.2019;45(1):e20170373-e20170373

Abstract PDF PT PDF EN Portuguese Text

Objective: Minimally invasive repair of pectus excavatum (MIRPE) is a surgical treatment for PE. During the procedure, a specialized introducer is used to tunnel across the mediastinum for thoracoscopic insertion of a metal bar. There have been reported cases of cardiac perforation during this risky step. The large introducer can be a dangerous lever in unskilled hands. We set out to determine the safety and feasibility of using regular instruments (i.e., not relying on special devices or tools) to create the retrosternal tunnel during MIRPE. Methods: This was a preliminary study of MIRPE with regular instruments (MIRPERI), involving 28 patients with PE. We recorded basic patient demographics, chest measurements, and surgical details, as well as intraoperative and postoperative complications. Results: Patients undergoing MIRPERI had Haller index values ranging from 2.58 to 5.56. No intraoperative complications occurred. Postoperative complications included nausea/vomiting in 8 patients, pruritus in 2, and dizziness in 2, as well as atelectasis, pneumothorax with thoracic drainage, pleural effusion, and dyspnea in 1 patient each. Conclusions: In this preliminary study, the rate of complications associated with MIRPERI was comparable to that reported in the literature for MIRPE. The MIRPERI approach has the potential to improve the safety of PE repair, particularly for surgeons that do not have access to certain special instruments or have not been trained in their use.

 


Keywords: Funnel chest; Heart injuries; Thoracic wall; Intraoperative complications; Minimally invasive surgical procedures.

 


Self-expanding stent made of polyester mesh with silicon coating (Polyflex®) in the treatment of inoperable tracheal stenoses

Endoprótese auto-expansível de malha de poliéster revestida por silicone (Polyflex®) no tratamento de estenoses traqueais não-cirúrgicas

Ricardo Mingarini Terra, Helio Minamoto, Miguel Lia Tedde, José Luiz Jesus de Almeida, Fabio Biscegli Jatene

J Bras Pneumol.2007;33(3):241-247

Abstract PDF PT PDF EN Portuguese Text

Objective: To evaluate the Polyflex® stent in terms of its efficacy, ease of implantation, and complications in patients with tracheobronchial affections. Methods: This was a prospective study, in which sixteen patients with inoperable tracheal stenosis secondary to orotracheal intubation (n = 12), neoplasia (n = 3), or Wegener's granulomatosis (n = 1) were monitored. Of these patients, eleven were women, and five were men. The mean age was 42.8 years (range, 21-72 years). Patients were submitted to implantation of a total of 21 Polyflex® stents. All procedures were carried out in the operating room under general anesthesia, and the stents were implanted via suspension laryngoscopy using the stent applicator. Results: Stents were implanted and symptoms were resolved in all cases. The stents remained in place for a mean period of 7.45 months, ranging from 2 to 18 months. The complications observed in the immediate postoperative period were dysphonia (in two patients, 12.5%) and odynophagia (in two patients, 12.5%). Late complications were cough (in ten patients, 62.5%), migration (in seven patients, 43.75%), granuloma formation (in two patients, 12.5%), and pneumonia (in one patient, 6.25%). Conclusion: The Polyflex® stent is easily implanted, easily removed, well tolerated by patients and effective in resolving symptoms. However, its use is associated with a high rate of migration, especially in patients with post-orotracheal intubation stenosis.

 


Keywords: Tracheal stenosis; Intubation, intratracheal; Prostheses and implants; Stents.

 


Video-assisted thoracoscopic implantation of a diaphragmatic pacemaker in a child with tetraplegia: indications, technique, and results

Implante de marca-passo diafragmático por videotoracoscopia em criança com tetraplegia: indi-cações, técnica e resultados

Darcy Ribeiro Pinto Filho, Miguel Lia Tedde, Alexandre José Gonçalves Avino, Suzan Lúcia Brancher Brandão, Iuri Zanatta, Rafael Hahn

J Bras Pneumol.2015;41(1):90-94

Abstract PDF PT PDF EN Portuguese Text

We report the case of a child with tetraplegia after cervical trauma, who subsequently underwent diaphragmatic pacemaker implantation. We reviewed the major indications for diaphragmatic pacing and the types of devices employed. We highlight the unequivocal benefit of diaphragmatic pacing in the social and educational reintegration of individuals with tetraplegia.

 


Keywords: Spinal cord injuries; Respiration, artificial; Pacemaker, artificial; Quadriplegia.

 


Endobronchial ultrasound-guided transbronchial needle aspiration in the diagnosis and staging of mediastinal lymphadenopathy: initial experience in Brazil

Punção aspirativa guiada por ultrassom endobrônquico no diagnóstico e estadiamento de linfadenopatia mediastinal: experiência inicial no Brasil

Miguel Lia Tedde, Viviane Rossi Figueiredo, Ricardo Mingarini Terra, Hélio Minamoto, Fábio Biscegli Jatene

J Bras Pneumol.2012;38(1):33-40

Abstract PDF PT PDF EN Portuguese Text

Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a new method for the diagnosis and staging of mediastinal lymph nodes. The objective of this study was to evaluate the preliminary results obtained with EBUS-TBNA in the diagnosis of lesions and mediastinal lymph node staging. Methods: We evaluated patients with tumors or mediastinal adenopathy, diagnosed with or suspected of having lung cancer. The procedures were performed with the patients under sedation or under general anesthesia. Material was collected by EBUS-TBNA, after which it was prepared on slides, fixed in either absolute alcohol (for cytology) or formalin (for cell-block analysis). Results: We included 50 patients (30 males). The mean age was 58.3 ± 13.5 years. We performed 201 biopsies of 81 lymph nodes or mediastinal masses (mean of 2.5 punctures/biopsy). The quantity of material was considered sufficient for cytology in 37 patients (74%), 21 (57%) of whom were thus diagnosed with malignancy. Of the remaining 16 patients, 1 was diagnosed with tuberculosis, 6 entered clinical follow-up, and 9  underwent further investigation (2 diagnosed with neoplasm-false-negative results). The yield was higher when the procedure was performed for diagnostic purposes, as well as being higher in patients with lesions in multiple stations and in biopsies involving the subcarinal lymph node station. One patient had endobronchial bleeding, which was resolved with local measures. There were no deaths among the patients evaluated. Conclusions: This preliminary experience shows that EBUS-TBNA is a safe procedure. Our diagnostic yield, although lower than that reported in the literature, was consistent with the learning curve for the method.

 


Keywords: Ultrasonography, interventional; Biopsy, fine-needle; Neoplasm staging; Lung neoplasms; Bronchoscopy.

 


Endoscopic treatment of tracheobronchial tree fistulas using atrial septal defect occluders: preliminary results

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

Paulo Rogério Scordamaglio, Miguel Lia Tedde, Hélio Minamoto, Carlos Augusto Cardoso Pedra, Fábio Biscegli Jatene

J Bras Pneumol.2009;35(11):1156-1160

Abstract PDF PT PDF EN Portuguese Text

Fistulas 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.

 


Non-conventional therapies to manage refractory acute asthma attack

Uso de terapias não convencionais no manejo da crise aguda de asma refratária

Raquel Hermes Rosa Oliveira, Alexandre de Oliveira Ribeiro, Gustavo Adolpho Junqueira Amarante, Miguel Lia Tedde

J Bras Pneumol.2002;28(5):277-280

Abstract PDF PT

A patient with an acute asthma attack refractory to inhaled and intravenous b2-agonist, aminophylline and corticosteroids was submitted to mechanical ventilation and treated with non-conventional therapies: bronchoscopy with bronchoalveolar lavage using N-acetylcysteine and halothane inhalation. The ventilatory parameters improved after lavage, however, bronchospasm resolution occurred only after anesthesia which was followed by extubation and discharge from the ICU. A review of the use of these non-conventional therapeutic modalities for the management of acute asthma attack is presented.

 



Electric Ventilation: indications for and technical aspects of diaphragm pacing stimulation surgical implantation

Ventilação elétrica: indicações e aspectos técnicos do implante cirúrgico do marca-passo de estimulação diafragmática

Miguel Lia Tedde, Raymond P Onders, Manoel Jacobsen Teixeira, Silvia Gelas Lage, Gerson Ballester, Mario Wilson Iersolino Brotto, Erica Mie Okumura, Fabio Biscegli Jatene

J Bras Pneumol.2012;38(5):566-572

Abstract PDF PT PDF EN Portuguese Text

Objective: Patients with high cervical spinal cord injury are usually dependent on mechanical ventilation support, which, albeit life saving, is associated with complications and decreased life expectancy because of respiratory infections. Diaphragm pacing stimulation (DPS), sometimes referred to as electric ventilation, induces inhalation by stimulating the inspiratory muscles. Our objective was to highlight the indications for and some aspects of the surgical technique employed in the laparoscopic insertion of the DPS electrodes, as well as to describe five cases of tetraplegic patients submitted to the technique. Methods: Patient selection involved transcutaneous phrenic nerve studies in order to determine whether the phrenic nerves were preserved. The surgical approach was traditional laparoscopy, with four ports. The initial step was electrical mapping in order to locate the "motor points" (the points at which stimulation would cause maximal contraction of the diaphragm). If the diaphragm mapping was successful, four electrodes were implanted into the abdominal surface of the diaphragm, two on each side, to stimulate the branches of the phrenic nerve. Results: Of the five patients, three could breathe using DPS alone for more than 24 h, one could do so for more than 6 h, and one could not do so at all. Conclusions: Although a longer follow-up period is needed in order to reach definitive conclusions, the initial results have been promising. At this writing, most of our patients have been able to remain ventilator-free for long periods of time.

 


Keywords: Spinal cord injuries; Quadriplegia; Respiration, artificial; Pacemaker, artificial; Diaphragm.

 


 

 


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