Publications by authors named "Joao Carlos Das-Neves-Pereira"

Background: In Low-Middle Income Countries (LMICs), resource optimization and infrastructure availability are recurrently in debate. In order to assist the development and implementation of guidelines, LMICs often exemplify from High-Income Countries protocols. At the final, it will be: content adaption is often needed.

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Ki-67 has shown promise as a prognostic factor in pulmonary carcinoids. In this study, we sought to validate the importance of Ki-67 and study the relationships between Ki-67 and other stromal biomarkers of vascular density. We examined Ki-67, CD34, and D2-40 in tumor tissues from 128 patients with surgically excised typical carcinoid of the lung.

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Aims: Some authors have hypothesized that left ventricular chamber dilatation in ischaemic and idiopathic cardiomyopathies results in spherical transformation. Aiming to characterize how this transformation occurs, a study was performed by comparing normal and dilated specimens regarding sphericity and proportionality in left heart chambers. It is important to provide data for the development of therapeutic strategies in these diseases.

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Purpose: The aim of this study was to compare the functional exercise capacity and the lung function among patients undergoing early rehabilitation with those submitted to the conventional care after pectus excavatum repair using the Nuss procedure.

Method: Patients were randomly allocated to the early rehabilitation group (ERG) who started rehabilitation after surgery and the group of the conventional care (CG) received routine care of the institution. They were evaluated before surgery (preoperative) and in hospital discharge day (postoperative).

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"The First Minimally Invasive Thoracic Surgery Uniportal Course" in Mexico was held from July 13 to 15 in Mexico City, at the National Institute of Respiratory Diseases (INER). Thoracic surgeons from around Mexico assisted the course. The special guests were the Spanish doctor Diego González-Rivas and the Brasilian doctor Joao Carlos das Neves-Pereira.

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Article Synopsis
  • The study investigates how nutritional status affects surgical outcomes in patients undergoing pneumonectomy for lung cancer.
  • The research evaluates patients based on their nutritional markers (albumin and transthyretin levels) and finds that malnutrition significantly predicts complications and mortality post-surgery.
  • The results indicate that malnutrition, along with factors like smoking status and the extent of resection, should be considered in preoperative assessments to improve patient outcomes.
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The goal of this study was to evaluate if the immunohistochemical expression of alpha-3 neuronal nicotinic acetylcholine receptor subunit in sympathetic ganglia remains stable after brain death, determining the possible use of sympathetic thoracic ganglia from subjects after brain death as study group. The third left sympathetic ganglion was resected from patients divided in two groups: BD-organ donors after brain death and CON-patients submitted to sympathectomy for hyperhidrosis (control group). Immunohistochemical staining for alpha-3 neuronal nicotinic acetylcholine receptor subunit was performed; strong and weak expression areas were quantified in both groups.

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Objectives: Lung cancer invading beyond the interlobar pleura, classified as T2a in the new TNM, is a rare entity with a poor outcome. Our purpose was a better understanding of the mechanisms of this particular behaviour and its prognostic value.

Methods: Patients who underwent surgery between 1984 and 2007 were reviewed.

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Objectives: To compare bar displacement and complication rates in three retrospective series of patients operated on by the same surgical team.

Method: A retrospective medical chart analysis of the three patient series was performed. In the first series, the original, unmodified Nuss technique was performed.

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The main objective of this study was to determine if there are variations in the level of improvement of the palmar and plantar hyperhidrotic symptoms, as well as the incidence and intensity of the sudomotor reflex, throughout the seasons of the year, after thoracic sympathectomy for hyperhidrosis. The study also looks for the real impact of these variables in the long-term satisfaction. A cohort of 75 patients was followed through distinct seasons.

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Video-assisted lobectomy procedures include a broad spectrum of operative techniques that range from complete thoracoscopic surgery to minithoracotomy with a thoracoscope serving only as a light source. We describe a modified method for thoracoscopic approach for lobectomy with thoracic muscle sparing based on a combined complete port-accessed technique with a subcostal incision. We have successfully used this technique for lobectomies in stage I lung tumors.

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Regional recurrence of breast cancer may involve the surgical site of mastectomy, axillary lymph nodes and the internal mammary lymphatic chain. Treatment of regional recurrent mammary cancer rarely requires thoracic surgery intervention, except in some selected cases of recurrence in the chest wall. Concerning lymphatic recurrence in breast cancer, the therapeutic choice rarely includes surgical lymph node excision.

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Pectus excavatum is a congenital deformity that can require surgical treatment. Since Nuss proposed a correction technique, several modifications have been proposed in order to achieve more safety and efficiency in the placement and removal of both bars. Our objective is to describe the technique of placing and removing the bars by proposing three technical modifications: two in bar placement and one in the bar removal.

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Objectives: We developed a prosthesis for open pleurostomy cases where pulmonary decortication is not indicated, or where post-pneumonectomy space infection occurs. The open pleural window procedure not only creates a large hole in the chest wall that is shocking to patients, also results in a permanent deformation of the thorax. prosthesis for open pleurostomy is a self-retained silicone tube that requires the removal of 3 cm of one rib for insertion, and acts as a mature conventional open pleural window.

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Objective: Fast-track rehabilitation is a group of simple measures that reduces morbidity, postoperative complication and accelerates postoperative rehabilitation reducing hospital stay. It can be applied to lung cancer lobectomy. Fast-track rehabilitation cornerstones are: minimally invasive surgical techniques using video-assisted and muscle sparring incisions, normovolemia, normothermia, good oxygenation, euglicemia, no unnecessary antibiotics, epidural patient-controlled analgesia, systemic opiods-free analgesia, early ambulation and oral feeding.

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Congenital sternal cleft is a rare disease, and primary repair in the neonatal period is its best management. In 1998 we presented three surgical techniques for sternal cleft correction, but since 1999 we have elected one of them as our procedure of choice. Our latest results are now presented.

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Our objective is to compare surgical safety and efficacy between robotic and human camera control in video-assisted thoracic sympathectomy. A randomized-controlled-trial was performed. Surgical operation was VATS sympathectomy for hyperhidrosis.

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Objective: Bronchial typical carcinoid tumors are low-grade malignancies. However, metastases are diagnosed in some patients. Predicting the individual risk of these metastases to determine patients eligible for a radical lymphadenectomy and patients to be followed-up because of distant metastasis risk is relevant.

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A 64-year-old non-smoking woman with a left upper lobe mass underwent a wedge resection by video-thoracoscopic approach. Intraoperative frozen section examination was unable to rule out a neoplastic disease and a lobectomy was performed. Microscopic analysis showed a typical pulmonary sequestration pattern including arteries with elastic layers in a systemic fashion.

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We present the case of a 60-year-old female patient who had been in menopause for 14 years and presented a pulmonary nodule on chest X-ray diagnosed in the postoperative follow-up evaluation of breast cancer. The patient had a history of mastectomy and ipsilateral axillary lymphadenectomy for invasive ductal breast carcinoma, as well as of hormone therapy, chemotherapy, and adjuvant radiotherapy. After thoracoscopic nodulectomy, the frozen section analysis revealed a pulmonary hamartoma.

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Bronchopulmonary typical carcinoid tumors (BTCT) are neuroendocrine neoplasms with histologic low grade characteristics considered benign. However, despite reassuring histologic classification, some of them demonstrate an aggressive nature and metastatic behavior. During a not yet concluded study aiming at establishing criteria to predict this metastatic behavior, three uncommon cases were observed.

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Bronchopulmonary carcinoid tumors have been associated with a variety of endocrine disorders including Cushing's syndrome (CS), which is caused by ectopic adrenocorticotrophic hormone (ACTH) secretion. We report two cases of CS secondary to bronchopulmonary carcinoid tumors. The first patient, a 29-year-old woman, presented hypokalemia, high serum ACTH level and high free-urinary cortisol, raising suspicion of an ectopic ACTH syndrome.

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Background: Sleeve lobectomy (SL) seems to have better results than pneumonectomy. Some authors propose to extend its indications. The aim of this study was to compare postoperative results, locoregional recurrence, and survival after sleeve lobectomy and pneumonectomy in focusing on right upper lobe cancer.

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As the biologic behavior in lung tumors with neuroendocrine differentiation is highly dependent on cell death (apoptosis) and extracellular matrix invasion, Bcl2 and extracellular matrix density have been targeted as potentially useful tumor markers. In this study, we sought to validate the importance of Bcl2 and ECM density and to study the relationships of Bcl2 and ECM density with clinical factors and other tumor or stromal markers. We examined Bcl2 and several other markers in tumor tissues from 55 patients with surgically excised pulmonary typical carcinoid.

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