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Dear Editor, we have read with interest the case reported by Rotolo et al. (published in February 2023 as Early Access) concerning the surgical management of tracheoesophageal fistula (TEF) in a COVID-19 patient treated with prolonged mechanical ventilation for severe respiratory failure.
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Introduction: Severe COVID-19 is a life-threatening condition characterized by complications such as interstitial pneumonia, hypoxic respiratory failure, and acute respiratory distress syndrome (ARDS). Non-pharmacological intervention with mechanical ventilation plays a key role in treating COVID-19-related ARDS but is influenced by a high risk of failure in more severe patients. Dexmedetomidine is a new generation highly selective α2-adrenergic receptor (α2-AR) agonist that provides sedative effects with preservation of respiratory function. The aim of this study is to assess how dexmedetomidine influences gas exchange during non-invasive ventilation (NIV) and high-flow nasal cannula (HFNC) in moderate to severe ARDS caused by COVID-19 in a non-intensive care setting. Methods: This is a single center retrospective cohort study. We included patients who showed moderate to severe respiratory distress. All included subjects had indication to NIV and were suitable for a non-intensive setting of care. A total of 170 patients were included, divided in a control group (n = 71) and a treatment group (DEX group, n = 99). Results: A total of 170 patients were hospitalized for moderate to severe ARDS and COVID-19. The median age was 71 years, 29% females. The median Charlson comorbidity index (CCI) was 2.5. Obesity affected 21% of the study population. The median pO2/FiO2 was 82 mmHg before treatment. After treatment, the increase of pO2/FiO2 ratio was clinically and statistically significant in the DEX group compared to the controls (125 mmHg [97-152] versus 94 mmHg [75-122]; ***p < 0.0001). A significative reduction of NIV duration was observed in DEX group (10 [7-16] days vs. 13 [10-17] days; *p < 0.02). Twenty four patients required IMV in control group (n = 71) and 16 patients in DEX group (n = 99) with a reduction of endotracheal intubation of 62% (OR 0.38; **p < 0.008). A higher incidence of sinus bradycardia was observed in the DEX group. Conclusion: Dexmedetomidine provides a "calm and arousal" status which allows spontaneous ventilation in awake patients treated with NIV and HFNC. The adjunctive therapy with dexmedetomidine is associated with a higher pO2/FiO2, lower duration of NIV, and a lower risk of NIV failure. A higher incidence of sinus bradycardia needs to be considered.
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BACKGROUND: Bronchiectasis is the consequence of chronic bronchial inflammation, inappropriate mucus clearance, bacterial colonization, and recurrent or chronic infection. High flow therapy (HFT) is a type of non-invasive respiratory therapy, usually delivered through a nasal cannula interface (HFNC). It delivers heated and humidified air with a stable fraction of inspired oxygen and a wide range of possible flow rates. AIM OF THE STUDY: Determine the effectiveness of HFNC as add-on therapy in adult primary and secondary bronchiectasis with frequent acute exacerbations (AEs) and/or hospitalizations. METHODS: This is a single-center crossover study on long-term home therapy with HFNC in adult bronchiectasis. Pharmacological therapy included pulse therapy with mucolytics and bronchodilators. After one year, all patients were switched to additional HFNC. The temperature range was 31-37 °C. The flow range was 35-60 L/m. FiO2 was 0.21. RESULTS: Seventy-eight patients completed the follow-up; 54% were females; the median age was 70 years (IQR 60-76). The etiology of bronchiectasis was mainly post-infective (51%), COPD related (26%), and congenital (11%). AEs at baseline were 2.81 (±2.15). A significant reduction in AEs was observed after 24 months with a mean of 0.45 (±0.66) (f-ratio value 79.703. p-value < 0.00001). No significant difference was observed after HFNC therapy on FEV1 (2.39 ± 0.87 vs. 2.55 ± 0.82; f-ratio 0.79. p-value 0.45) and FVC (2.73 ± 0.88 vs. 2.84 ± 0.90; f-ratio 0.411. p-value 0.66). A significant reduction in mMRC score was observed after HFNC therapy (2.40 ± 0.81 vs. 0.97 ± 0.97 at 2 months vs. 0.60 ± 0.78 at 24 months; f-ratio value 95.512. p-value < 0.00001). CONCLUSIONS: HFNC is a well-tolerated add-on therapy for adult bronchiectasis. Dyspnea improved after 2 months and further after 2 years. The exacerbation rate decreased during the 2 years follow-up. No significant difference was observed in lung function.
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Persistent alveolar air leak (PAAL) after major lung resection remains a common complication in thoracic surgery. The aim of this study was to identify a subset of patients with high risk of developing PAAL after pulmonary lobectomy. Another objective was to evaluate the influence of PAAL on postoperative complications and length of hospital stay. A retrospective analysis on 895 patients undergoing pulmonary lobectomy from January 2014 to December 2019 was performed. PAAL was defined as air leak lasting more than 5 days after lung surgery. Univariate analyses and logistic regressions were performed to identify the predictors of PAAL. A backward selection algorithm was used to identify the optimal set of predictors. The incidence of PAAL was 8.2% (74/895). Male gender (p=0.017), BMI (p<0.001), transient ischemic attack (p=0.031), FEV1 (p=0.018), lobectomy combined with adjacent subsegmentectomy (p=0.018), partial and extended pleural adhesions (p=0.033 and p=0.038, respectively) were identified as independent risk factors for PAAL through logistic regression. A weak positive correlation was found between video-assisted thoracic surgery (VATS) and PAAL following pulmonary lobectomy (p=0.100). PAAL was found to be associated with higher risk of postoperative morbidity (p=0.002) and with longer hospital stay (p<0.001). Both preoperative and intraoperative risk factors may be responsible for PAAL after pulmonary lobectomy. VATS does not appear to prevent this postoperative complication. An alveolar air leak lasting beyond 5 days after pulmonary lobectomy is associated with worse postoperative outcomes.
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We present a case of surgical management of a tracheoesophageal fistula (TEF) following prolonged intubation. After transverse tracheal division and retraction of the distal stump, direct closure of the esophageal defect and repair of the membranous tracheal defect using a synthetic bioabsorbable patch were performed, followed by interposition of muscle flap between the suture lines and tracheal reconstruction. Large TEFs, without tracheal stenosis or circumferential airway defect, associated with marked peritracheal inflammation, may be treated with this alternative tracheoplastic technique in patients deemed not suitable for tracheal resection and anastomosis.
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Procedimentos de Cirurgia Plástica , Fístula Traqueoesofágica , Humanos , Fístula Traqueoesofágica/diagnóstico por imagem , Fístula Traqueoesofágica/etiologia , Fístula Traqueoesofágica/cirurgia , Resultado do Tratamento , Traqueia/diagnóstico por imagem , Traqueia/cirurgia , Procedimentos de Cirurgia Plástica/efeitos adversosRESUMO
Anatomical variations of pulmonary venous drainage have been widely described in the literature in order to perform safe thoracic surgical procedures. We report a case of anomalous vein from the superior segment of the right lower lobe running in the posterior mediastinum and draining into the superior pulmonary vein. As the patient showed a usual right inferior pulmonary vein, formed by the union of the superior segment right lower lobe vein (V6) and the common basal vein joining the left atrium, the uncommon segmental pulmonary vein described was named: additional V6. It was identified preoperatively and recognized intraoperatively during thoracoscopic right lower lobectomy and lymph node dissection performed for lung cancer treatment. Diagnostic imaging and careful surgical dissection are helpful tools to avoid intraoperative bleeding and other complications during thoracic surgical procedures due to unrecognized vascular anomalies.
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Cardiopatias Congênitas , Neoplasias Pulmonares , Veias Pulmonares , Humanos , Veias Pulmonares/diagnóstico por imagem , Veias Pulmonares/cirurgia , Pulmão/cirurgia , Brônquios , Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias Pulmonares/cirurgia , DrenagemRESUMO
High-flow nasal cannula (HFNC) therapy is an oxygen delivery method particularly used in patients affected by hypoxemic respiratory failure. In comparison with the conventional "low flow" oxygen delivery systems, it showed several important clinical benefits. The possibility to nebulize drugs via HFNC represents a desirable medical practice because it allows the administration of inhaled drugs, mostly bronchodilators, without the interruption or modification of the concomitant oxygen therapy. HFNC, by itself has shown to exert a small but significant bronchodilator effect and improves muco-ciliary clearance; thus, the nebulization of bronchodilators through the HFNC circuit may potentially increase their pharmacological activity. Several technical issues have been observed which include the type of the nebulizer that should be used, its position within the HFNC circuit, and the optimal gas flow rates to ensure an efficient drug delivery to the lungs both in "quiet" and "distressed" breathing patterns. The aim of this review has been to summarize the scientific evidence coming from "in vitro" studies and to discuss the results of "in vivo" studies performed in adult subjects, mainly affected by obstructive lung diseases. Most studies seem to indicate the vibrating mesh nebulizer as the most efficient type of nebulizer and suggest to place it preferentially upstream from the humidifier chamber. In a quite breathing patterns, the inhaled dose seems to increase with lower flow rates while in a "distressed" breathing pattern, the aerosol delivery is higher when gas flow was set below the patient's inspiratory flow, with a plateau effect seen when the gas flow reaches approximately 50% of the inspiratory flow. Although several studies have demonstrated that the percentage of the loaded dose nebulized via HFNC reaching the lungs is small, the bronchodilator effect of albuterol seems not to be impaired when compared to the conventional inhaled delivery methods. This is probably attributed to its pharmacological activity. Prospective and well-designed studies in different cohort of patients are needed to standardize and demonstrate the efficacy of the procedure.
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Malignant pleural effusion represents a prognostic negative factor on survival conferring stage IV disease. The median of survival is 5 months and a 5-year survival of about 3%. We describe the therapeutic success obtained from different strategies in anaplastic lymphoma kinase (ALK) inhibitors in 2 young women showing malignant pleural effusion secondary to advanced ALK-rearranged lung adenocarcinoma. This report shows that for patients with EGFR mutations in advanced lung adenocarcinoma-associated malignant pleural effusion, complete response to EGFR TKI inhibitor can be observed mostly if pleural effusion and primary lung adenocarcinoma show the same EGFR mutation status.
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Patients with neuromuscular diseases, during their illness are more susceptible to respiratory infections due to predisposing factors. Ineffective cough and the presence of atelectasis and hypoventilation, dysphagia and drooling can represent risk factors for the development of respiratory infection and fatal respiratory failure. Infections of respiratory tract with acute respiratory failure are the most common reason for hospitalizations, and pneumonia is among the leading causes of morbidity and mortality worldwide. The setting in which pneumonia is acquired heavily influences diagnostic and therapeutic choices. We will focus on aetiopathogenesis, diagnosis and treatment of pneumonia in these subjects, particularly considering the disease severity, rates of antibiotic resistance and the possible complications. In this case consultations with specialized physicians are strongly recommended.
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Doenças Neuromusculares , Pneumonia , Insuficiência Respiratória , Infecções Respiratórias , Hospitalização , Humanos , Doenças Neuromusculares/complicações , Doenças Neuromusculares/diagnóstico , Doenças Neuromusculares/terapia , Pneumonia/complicações , Pneumonia/diagnóstico , Pneumonia/terapia , Insuficiência Respiratória/diagnóstico , Insuficiência Respiratória/etiologia , Insuficiência Respiratória/terapiaRESUMO
Intermittent abdominal pressure ventilation is a positive pressure ventilation technique that works with abdominal compressions. It has been known since 1938; however, for many years, it was out of production. In recent years, a new device has been produced that has captured the attention to this old respiratory support technique. We considered eight patients with respiratory failure secondary to a neuromuscular disease (congenital myopathy, Duchenne dystrophy, and amyotrophic lateral sclerosis) intolerant to daytime noninvasive ventilation (NIV). IAPV was proposed as an alternative to NIV. We performed baseline and post-IAPV respiratory function assessment. All patients, two years later, are still using intermittent abdominal ventilation. Intermittent positive abdominal mechanical ventilation can be a valid alternative to noninvasive mechanical ventilation with a nasal or face mask. It improves gas exchange, symptoms, and quality of life, decreases the incidence of pneumonia, and can avert the need for intubation and tracheotomy.
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Ventilação com Pressão Positiva Intermitente , Doenças Neuromusculares/complicações , Ventilação não Invasiva , Insuficiência Respiratória/terapia , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Doenças Neuromusculares/diagnóstico , Respiração com Pressão Positiva , Qualidade de Vida , Insuficiência Respiratória/etiologia , Resultado do TratamentoRESUMO
OBJECTIVE: The aim of our study was to assess the effect of a short-term treatment with low-moderate corticosteroid (CS) doses by both a quantitative and qualitative assessment of chest HRCT of COVID-19 pneumonia. METHODS: CORTICOVID is a single-center, cross-sectional, retrospective study involving severe/critical COVID-19 patients with mild/moderate ARDS. Lung total severity score was obtained according to Chung and colleagues. Moreover, the relative percentages of lung total severity score by ground glass opacities, consolidations, crazy paving, and linear bands were computed. Chest HRCT scores, P/F ratio, and laboratory parameters were evaluated before (pre-CS) and 7-10 days after (post-CS) methylprednisolone of 0.5-0.8 mg/kg/day. FINDINGS: A total of 34 severe/critical COVID-19 patients were included in the study, of which 17 received Standard of Care (SoC) and 17 CS therapy in add-on. CS treatment disclosed a significant decrease in HRCT total severity score [median = 6 (IQR: 5-7.5) versus 10 (IQR: 9-13) in SoC, p < 0.001], as well in single consolidations [median = 0.33 (IQR: 0-0.92) versus 6.73 (IQR: 2.49-8.03) in SoC, p < 0.001] and crazy paving scores [mean = 0.19 (SD = 0.53) versus 1.79 (SD = 2.71) in SoC, p = 0.010], along with a significant increase in linear bands [mean = 2.56 (SD = 1.65) versus 0.97 (SD = 1.30) in SoC, p = 0.006]. GGO score instead did not significantly differ at the end of treatment between the two groups. Most post-CS GGO, however, derived from previous consolidations and crazy paving [median = 1.5 (0.35-3.81) versus 2 (1.25-3.8) pre-CS; p = 0.579], while pre-CS GGO significantly decreased after methylprednisolone therapy [median = 0.66 (0.05-1.33) versus 1.5 (0.35-3.81) pre-CS; p = 0.004]. CS therapy further determined a significant improvement in P/F levels [median P/F = 310 (IQR: 235.5-370) versus 136 (IQR: 98.5-211.75) in SoC; p < 0.001], and a significant increase in white blood cells, lymphocytes, and neutrophils absolute values. CONCLUSION: The improvement of all chest HRCT findings further supports the role of CS adjunctive therapy in severe/critical COVID-19 pneumonia.
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COVID-19/complicações , Glucocorticoides/administração & dosagem , Metilprednisolona/administração & dosagem , Pneumonia Viral/tratamento farmacológico , Tomografia Computadorizada por Raios X , COVID-19/diagnóstico por imagem , Estudos de Casos e Controles , Estudos Transversais , Feminino , Humanos , Pulmão/diagnóstico por imagem , Pulmão/virologia , Masculino , Pessoa de Meia-Idade , Pneumonia Viral/diagnóstico por imagem , Pneumonia Viral/virologia , Síndrome do Desconforto Respiratório/diagnóstico por imagem , Síndrome do Desconforto Respiratório/tratamento farmacológico , Síndrome do Desconforto Respiratório/virologia , Estudos Retrospectivos , Índice de Gravidade de Doença , Resultado do Tratamento , Tratamento Farmacológico da COVID-19RESUMO
We describe the case of a 56-year-old-man with limb-girdle muscular dystrophy affected by acute hypercapnic failure secondary to pneumonia treated with high flow nasal cannula, intermittent abdominal ventilation, and negative pressure ventilation. The patient did not tolerate noninvasive positive pressure ventilation and refused invasive ventilation and tracheostomy. We successfully experienced a novel approach combining high flow nasal cannula with cycles of intermittent abdominal pressure ventilation and negative pressure ventilation.
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Distrofia Muscular do Cíngulo dos Membros , Ventilação não Invasiva , Insuficiência Respiratória , Cânula , Humanos , Pessoa de Meia-Idade , Distrofia Muscular do Cíngulo dos Membros/complicações , Distrofia Muscular do Cíngulo dos Membros/terapia , Insuficiência Respiratória/etiologia , Insuficiência Respiratória/terapiaRESUMO
INTRODUCTION: In COVID-19 associated hypoxemic acute respiratory failure (ARF) without mandatory indication for urgent endotracheal intubation, a trial of CPAP may be considered. We aimed to evaluate HACOR (heart rate, acidosis, consciousness, oxygenation, respiratory rate) score performance in these patients as predictor of CPAP failure. METHODS: Prospective observational multicentric study (three centers in different countries), including adult patients with SARS-CoV-2 pneumonia admitted to a respiratory intermediate care unit, presenting PaO2/FiO2 < 300 and PaCO2 < 45 mmHg, who received CPAP. One hour after starting CPAP, HACOR was calculated. RESULTS: We enrolled 128 patients, mean age 61,7 years. Mean HACOR at 1 h after starting CPAP was 3,27 ± 3,84 and mean PaO2/FiO2 was 203,30 ± 92,21 mmHg; 35 patients (27,3 %) presented CPAP failure: 29 underwent oro-tracheal intubation and 6 died due to COVID-19 (all having a do-not-intubate order). HACOR accuracy for predicting CPAP failure was 82,03 %, while PaO2/FiO2 accuracy was 81,25 %. CONCLUSION: Although HACOR score had a good diagnostic performance in predicting CPAP failure in COVID-19-related ARF, PaO2/FiO2 has also shown to be a good predictor of failure.
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COVID-19/complicações , COVID-19/terapia , Pressão Positiva Contínua nas Vias Aéreas , Insuficiência Respiratória/terapia , Insuficiência Respiratória/virologia , Acidose , Idoso , Gasometria , COVID-19/fisiopatologia , Estado de Consciência , Feminino , Frequência Cardíaca , Humanos , Intubação Intratraqueal , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Prospectivos , Curva ROC , Insuficiência Respiratória/diagnóstico , Taxa Respiratória , Falha de TratamentoRESUMO
INTRODUCTION: Alpha-1 antitrypsin deficiency (AATD) is a genetic condition associated with several respiratory diseases in patients with severe protein deficiency. AATD is often late diagnosed or underdiagnosed. Diagnosis frequently occurs in patients with chronic obstructive pulmonary disease and emphysema characterized by frequent exacerbations and over ten years' duration. The purpose of this study was to evaluate the incidence of alpha-1 antitrypsin deficiency in patients with the chronic pulmonary disease after a thorough screening in the city of Naples in southern Italy. MATERIALS AND METHODS: Two hundred patients suffering from respiratory pathology (chronic obstructive pulmonary disease (COPD), emphysema, asthma, or bronchiectasis) were examined and evaluated in our outpatients' clinic and tested for serum levels of AAT. Patients who had a respiratory disease suspected of AATD and/or serum AAT < 120 mg/dL underwent genetic testing. Genetic screening was performed on samples from 141 patients. RESULTS: A total of 36 patients had an intermediate deficiency of AAT levels. Among them, 8 were PI*MZ, 6 were PI*MS and 22 had rare pathological mutations. Five patients had a severe AATD, all were composite heterozygous with S or Z allele, while the other allele had a rare pathological mutation. CONCLUSIONS: The incidence of genetic defects as AATD in the population of patients affected by chronic respiratory disorders is always a matter of discussion because of the frequent interaction between genes and environmental causes. In our series, numerous rare variants and compound heterozygosity have been described. No homozygous patients have been described. The present is one of few studies available on the incidence of rare variants in the geographic area of the city of Naples. So, our results could be considered interesting not only to know the incidence of AATD and its related rare mutations but also to support early diagnosis and treatments for patients with chronic pulmonary disease and frequent exacerbation and to fight the association with environmental causes of pulmonary damages as smoking.
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Mechanical ventilation in recent years has benefited from the development of new techniques and interfaces. These developments allowed clinicians to offer increasingly personalised therapies with the combination of different complementary techniques for treating respiratory insufficiency in patients with neuromuscular diseases. The mouthpiece ventilation, intermittent abdominal pressure ventilator and the negative pressure ventilation can offer many patients alternative therapy options when ventilation is required for many hours a day. In this non-systematic review, we will highlight the use of alternative methods to non-invasive mechanical ventilation at positive pressure in neuromuscular patients, to ensure the optimal interface for each patient.
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Doenças Neuromusculares/terapia , Ventilação não Invasiva/métodos , Humanos , Ventilação não Invasiva/instrumentaçãoRESUMO
Perivascular fibrosis is technically one of the most challenging issue to manage during thoracoscopic lobectomy and it is associated with increased risk of hemorrhagic injury. Here we report a case of thoracoscopic right lower lobectomy performed with individual dissection of segmental arteries due to dense adventitial fibrosis around the right lower lobe pulmonary artery. This approach may be considered as an alternative to the so-called "en masse" lobectomy and a way to avoid conversion to thoracotomy.
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Neoplasias Pulmonares , Cirurgia Torácica Vídeoassistida , Fibrose , Humanos , Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias Pulmonares/cirurgia , Pneumonectomia , ToracotomiaRESUMO
PURPOSE: The knowledge of variations in the branching patterns of pulmonary artery may have important clinical implications in the field of thoracic surgery. METHODS: At the Department of Thoracic Surgery of Monaldi Hospital in Naples, between January 2017 and December 2019, 569 anatomic pulmonary resections via video-assisted thoracic surgery, including lobectomy and segmentectomy, were performed. RESULTS: Among the 569 thoracoscopic pulmonary resections, 24 variations in the branching patterns of pulmonary artery were identified and documented. Anatomic variations on the left were more frequent than on the right. CONCLUSION: This paper, providing a summary of vascular anomalies identified during major lung resections, could help surgeons avoid intraoperative complications, especially during minimally invasive procedures where the visual field is more restricted than open surgery.
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Variação Anatômica , Complicações Intraoperatórias/prevenção & controle , Pneumonectomia/efeitos adversos , Artéria Pulmonar/anormalidades , Cirurgia Torácica Vídeoassistida/efeitos adversos , Humanos , Complicações Intraoperatórias/etiologia , Pulmão/irrigação sanguínea , Pulmão/cirurgia , Pneumonectomia/métodos , Artéria Pulmonar/lesões , Estudos Retrospectivos , Cirurgia Torácica Vídeoassistida/métodosRESUMO
BACKGROUND: Postoperative bronchopleural fistula represents a challenging issue for thoracic surgeons. The treatment options reported include bronchoscopic or surgical procedures but the method yielding the best results remains unclear. METHODS: In our thoracic surgery department, between January 2011 and June 2020, 11 patients treated conservatively for early bronchopleural fistula after lobectomy or bilobectomy were reviewed. The fistula size ranged between 2 and 3 mm and complete suture dehiscence. RESULTS: In all 11 patients favorable conditions such as clinical stability, complete expansion of the remaining lung, and resolution of the pleural infection allowed a successful conservative treatment with chest tube drainage. CONCLUSION: In selected cases, conservative management of early bronchopleural fistula after lobectomy or bilobectomy may be an alternative therapeutic option to bronchoscopic or surgical procedures, regardless of the fistula size.
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Fístula Brônquica/terapia , Tratamento Conservador , Neoplasias Pulmonares/cirurgia , Excisão de Linfonodo/efeitos adversos , Doenças Pleurais/terapia , Pneumonectomia/efeitos adversos , Fístula do Sistema Respiratório/terapia , Idoso , Fístula Brônquica/etiologia , Tubos Torácicos , Tratamento Conservador/efeitos adversos , Tratamento Conservador/instrumentação , Drenagem/instrumentação , Humanos , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Doenças Pleurais/etiologia , Fístula do Sistema Respiratório/etiologia , Irrigação Terapêutica , Resultado do TratamentoRESUMO
The coronavirus disease 2019 (COVID-19) is a recent pandemic that affected more than 5 million people worldwide. Chest high resolution computed tomography (HRCT) is an essential tool in diagnosis and management of the disease. Pulmonary parenchymal opacity is a typical sign of the disease, but not the only one. Pneumothorax, pneumomediastinum, bronchiectasis and cysts are probably underrated complications of COVID-19 that can worsen prognosis, in terms of prolonged hospitalization and need of oxygen therapy. In our single center case series, we outline four different manifestations of pneumothorax, pneumomediastinum and cysts in hospitalized patients with COVID-19 pneumonia.