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1.
Int J Mol Sci ; 25(9)2024 Apr 26.
Artigo em Inglês | MEDLINE | ID: mdl-38731927

RESUMO

Bordetella hinzii (B. hinzii), a Gram-negative bacillus commonly associated with respiratory infections in animals, has garnered attention for its sporadic cases in humans, particularly in immunocompromised individuals. Despite its opportunistic nature, there remains limited understanding regarding its pathogenicity, diagnostic challenges, and optimal treatment strategies, especially in the context of immunosuppression. Herein, we present the first documented case of acute bronchitis caused by B. hinzii in an immunocompromised patient following double-lung transplantation. The patient, a former smoker with sarcoidosis stage IV, underwent transplant surgery and subsequently developed a febrile episode, leading to the identification of B. hinzii in broncho-alveolar lavage samples. Antimicrobial susceptibility testing revealed resistance to multiple antibiotics, necessitating tailored treatment adjustments. Our case underscores the importance of heightened awareness among clinicians regarding B. hinzii infections and the imperative for further research to elucidate its epidemiology and optimal management strategies, particularly in immunocompromised populations.


Assuntos
Infecções por Bordetella , Bordetella , Hospedeiro Imunocomprometido , Transplante de Pulmão , Transplante de Pulmão/efeitos adversos , Humanos , Bordetella/isolamento & purificação , Infecções por Bordetella/microbiologia , Infecções por Bordetella/diagnóstico , Masculino , Pessoa de Meia-Idade , Antibacterianos/uso terapêutico , Antibacterianos/farmacologia , Transplantados
2.
Respirology ; 29(1): 71-79, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37789612

RESUMO

BACKGROUND: Antifibrotic agents (AFAs) are now standard-of-care for idiopathic pulmonary fibrosis (IPF). Concerns have arisen about the safety of these drugs in patients undergoing lung transplantation (LTx). METHODS: We performed a multi-centre, nationwide, retrospective, observational study of French IPF patients undergoing LTx between 2011 and 2018 to determine whether maintaining AFAs in the peri-operative period leads to increased bronchial anastomoses issues, delay in skin healing and haemorrhagic complications. We compared the incidence of post-operative complications and the survival of patients according to AFA exposure. RESULTS: Among 205 patients who underwent LTx for IPF during the study period, 58 (28%) had received AFAs within 4 weeks before LTx (AFA group): pirfenidone in 37 (18.0%) and nintedanib in 21 (10.2%). The median duration of AFA treatment before LTx was 13.8 (5.6-24) months. The AFA and control groups did not significantly differ in airway, bleeding or skin healing complications (p = 0.91, p = 0.12 and p = 0.70, respectively). Primary graft dysfunction was less frequent in the AFA than control group (26% vs. 43%, p = 0.02), and the 90-day mortality was lower (7% vs. 18%, p = 0.046). CONCLUSIONS: AFA therapy did not increase airway, bleeding or wound post-operative complications after LTx and could be associated with reduced rates of primary graft dysfunction and 90-day mortality.


Assuntos
Fibrose Pulmonar Idiopática , Transplante de Pulmão , Disfunção Primária do Enxerto , Humanos , Antifibróticos , Estudos Retrospectivos , Disfunção Primária do Enxerto/tratamento farmacológico , Disfunção Primária do Enxerto/etiologia , Fibrose Pulmonar Idiopática/tratamento farmacológico , Fibrose Pulmonar Idiopática/cirurgia , Transplante de Pulmão/efeitos adversos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Piridonas/efeitos adversos , Resultado do Tratamento
3.
Ann Cardiothorac Surg ; 11(2): 143-150, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35433355

RESUMO

Background: Targeted medical therapy and balloon pulmonary angioplasty (BPA) entered the field of chronic thromboembolic pulmonary hypertension (CTEPH) treatment in the early 2010's. Multimodal therapy is emerging as the new gold standard for CTEPH management. Whether this change of paradigm impacted early outcomes of pulmonary endarterectomy (PEA) remains unknown. Our aim is to report our surgical experience in the era of CTEPH multimodal management. Methods: Patients who underwent PEA between 2016 and 2020 were included in the study. Early outcomes were described and compared between three groups of patients: PEA alone, PEA after targeted medical therapy induction and PEA after BPA. Results: A total of 418 patients, 225 males and 193 females, with a mean age of 59±14 years were included in the study. 336 patients underwent PEA alone, 69 after medical targeted therapy induction and 13 after unilateral BPA. Baseline preoperative pulmonary vascular resistance [4.99 (IQR, 1.71-8.48), 6.21 (IQR, 4.37-8.1), 5.03 (IQR, 4.44-7.19) wood units (WU), P=0.230, respectively] and PEA effectiveness [% decrease mean pulmonary artery pressure (mPAP), 24 (IQR, 7-42), 25 (IQR, 7-35), 23 (IQR, 3-29), P=0.580] did not differ between groups. Compared to PEA alone and PEA+BPA, the medical therapy induction group represented the most challenging group with higher baseline mPAP (45±10 vs. 42±11 and 43±11 mmHg, P=0.047), longer circulatory arrest time (30.1±15 vs. 26.6±10 and 19.6±6 min, P=0.005), higher post-PEA extracorporeal membrane oxygenation use (20.6% vs. 8.7 and 9.1%, P=0.004), higher duration on mechanical ventilation [4 (IQR, 1-12) vs. 1 (IQR, 0.5-5) and 2 (IQR, 1-3) days, P=0.005], higher complication rate (85.5% vs. 74.6% and 76.9%, P=0.052) and higher 90-day mortality (13% vs. 3.9% and 0%, P=0.002). Compared to PEA and PEA+ medical therapy induction groups, patients in the BPA induction group were older [72 (IQR, 62-76) vs. 60 (IQR, 48-69) and 62 (IQR, 52-72) years, P=0.005], and underwent shorter cardiopulmonary bypass (191.9±47.9 vs. 222±107.2 and 236.8±46.4 min, P<0.001), aortic cross clamping (54.8±21 vs. 82.7±31.4 and 80.1±32.9 min, P=0.002) and circulatory arrest time (19.6±6.2 vs. 26.6±10.8 and 30.1±15.1 min, P=0.008). Conclusions: Multimodal therapy approach to CTEPH patients did not affect effectiveness of PEA. Medical therapy and BPA could act in synergy with surgery to treat more challenging patients.

4.
Expert Rev Respir Med ; 15(3): 373-384, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33107356

RESUMO

INTRODUCTION: Lung cancer is a frequent pathology for which the best curative treatment is pulmonary resection. Pulmonary arterial hypertension is a rare disease but pulmonary hypertension associated with parenchymal disease or left heart disease is frequently observed in these patients. The diagnosis of pulmonary hypertension before lung resection makes the perioperative management of these patients more difficult and sometimes leads to rejecting patients for surgery. AREAS COVERED: We performed a review of literature on PubMed on Pulmonary hypertension associated lung resection, preoperative assessment of lung resection and perioperative management of PH patients, including guidelines and clinical trials.In this review, we summarize the current state of knowledge regarding the pre and perioperative management of patients with suspected or confirmed PH who can benefit from surgical treatment of lung cancer. EXPERT OPINION: Management of PH patients before lung resection should include a very careful workup including at least right heart catheterization with evaluation of the targeted PH treatment in an expert center and evaluation of other comorbidities. Perioperative management must be carried out in a specialized center.


Assuntos
Hipertensão Pulmonar , Neoplasias Pulmonares , Procedimentos Cirúrgicos Torácicos , Cateterismo Cardíaco , Humanos , Hipertensão Pulmonar/diagnóstico , Hipertensão Pulmonar/etiologia , Hipertensão Pulmonar/terapia , Neoplasias Pulmonares/complicações , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/cirurgia
5.
Lancet Rheumatol ; 2(7): e393-e400, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32835245

RESUMO

BACKGROUND: Coronaviruses can induce the production of interleukin (IL)-1ß, IL-6, tumour necrosis factor, and other cytokines implicated in autoinflammatory disorders. It has been postulated that anakinra, a recombinant IL-1 receptor antagonist, might help to neutralise the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-related hyperinflammatory state, which is considered to be one cause of acute respiratory distress among patients with COVID-19. We aimed to assess the off-label use of anakinra in patients who were admitted to hospital for severe forms of COVID-19 with symptoms indicative of worsening respiratory function. METHODS: The Ana-COVID study included a prospective cohort from Groupe Hospitalier Paris Saint-Joseph (Paris, France) and a historical control cohort retrospectively selected from the Groupe Hospitalier Paris Saint-Joseph COVID cohort, which began on March 18, 2020. Patients were included in the prospective cohort if they were aged 18 years or older and admitted to Groupe Hospitalier Paris Saint-Joseph with severe COVID-19-related bilateral pneumonia on chest x-ray or lung CT scan. The other inclusion criteria were either laboratory-confirmed SARS-CoV-2 or typical lung infiltrates on a lung CT scan, and either an oxygen saturation of 93% or less under oxygen 6 L/min or more, or aggravation (saturation ≤93% under oxygen 3 L/min) with a loss of 3% of oxygen saturation in ambient air over the previous 24 h. The historical control group of patients had the same inclusion criteria. Patients in the anakinra group were treated with subcutaneous anakinra (100 mg twice a day for 72 h, then 100 mg daily for 7 days) as well as the standard treatments at the institution at the time. Patients in the historical group received standard treatments and supportive care. The main outcome was a composite of either admission to the intensive care unit (ICU) for invasive mechanical ventilation or death. The main analysis was done on an intention-to-treat basis (including all patients in the anakinra group who received at least one injection of anakinra). FINDINGS: From March 24 to April 6, 2020, 52 consecutive patients were included in the anakinra group and 44 historical patients were identified in the Groupe Hospitalier Paris Saint-Joseph COVID cohort study. Admission to the ICU for invasive mechanical ventilation or death occurred in 13 (25%) patients in the anakinra group and 32 (73%) patients in the historical group (hazard ratio [HR] 0·22 [95% CI 0·11-0·41; p<0·0001). The treatment effect of anakinra remained significant in the multivariate analysis (HR 0·22 [95% CI 0·10-0·49]; p=0·0002). An increase in liver aminotransferases occurred in seven (13%) patients in the anakinra group and four (9%) patients in the historical group. INTERPRETATION: Anakinra reduced both need for invasive mechanical ventilation in the ICU and mortality among patients with severe forms of COVID-19, without serious side-effects. Confirmation of efficacy will require controlled trials. FUNDING: Groupe Hospitalier Paris Saint-Joseph.

6.
Presse Med ; 49(2): 104026, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32437844

RESUMO

Idiopathic pulmonary fibrosis (IPF) is characterized by relentlessly progressive lung function impairment that is consistently fatal in the absence of lung transplantation, as no curative pharmacological treatment exists. The pace of progression varies across patients, and acute life-threatening exacerbations occur unpredictably, causing further sharp drops in lung function. Recently introduced antifibrotic agents slow the pace of disease progression and may improve survival but fail to stop the fibrotic process. Moreover, the magnitude and kinetics of the response to these drugs cannot be predicted in the individual patient. These characteristics require that lung transplantation be considered early in the course of the disease. However, given the shortage of donor lungs, lung transplantation must be carefully targeted to those patients most likely to benefit. Current guidelines for lung transplantation listing may need reappraisal in the light of recent treatment advances. Patients with IPF often have multiple comorbidities such as coronary heart disease, frailty, and gastro-oesophageal reflux disease (GERD). Consequently, extensive screening for and effective treatment of concomitant conditions is crucial to appropriate candidate selection and outcome optimisation. A multidisciplinary approach is mandatory. Pulmonologists with expertise in IPF must work closely with lung transplant teams. Careful consideration must be given to preoperative optimisation, surgical technique, and pulmonary rehabilitation to produce the best post-transplantation outcomes.


Assuntos
Fibrose Pulmonar Idiopática/cirurgia , Transplante de Pulmão , Fatores Etários , Anti-Inflamatórios não Esteroides/uso terapêutico , Doenças Cardiovasculares/complicações , Comorbidade , Progressão da Doença , Fragilidade/complicações , Refluxo Gastroesofágico/complicações , Humanos , Hipertensão Pulmonar/complicações , Pneumonias Intersticiais Idiopáticas/complicações , Indóis/uso terapêutico , Neoplasias Pulmonares/complicações , Prognóstico , Piridonas/uso terapêutico , Encurtamento do Telômero
7.
Histopathology ; 74(7): 988-996, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30636056

RESUMO

AIMS: Antibody-mediated rejection (AMR) is an emerging and challenging issue in transplantation. Endothelial deposition of C4d and microvascular inflammation (MI) are reliable markers of AMR in renal and cardiac transplantation, but remain controversial in the lung. Our aim was to assess C4d immunohistochemistry and histological patterns for the diagnosis of lung AMR. METHODS AND RESULTS: We reviewed 158 transbronchial biopsies (TBBs) (n = 85 clinically indicated, and n = 73 surveillance TBBs) from 48 recipients, blinded to clinical and serological data. C4d was scored as 0, 1+ (<10%), 2+ (10-50%) or 3+ (>50%). TBBs were reassessed for MI and acute lung injury (ALI). Donor-specific antibodies (DSAs), acute clinical graft dysfunction and chronic lung allograft graft dysfunction (CLAD) were recorded. C4d3+, C4d2+, C4d1+ and C4d0 occurred respectively in four (2.5%), six (3.8%), 28 (17.7%) and 120 (75.9%) TBBs. MI and ALI were rare but more frequent in C4d1-3+ TBBs than in the absence of C4d. C4d2+ was frequently observed with concomitant infection. Among the surveillance TBBs, only two (2.7%) showed MI. Neither ALI nor C4d3+ was diagnosed on surveillance TBBs. No significant association was found between histopathological findings and DSAs. All four patients with C4d3+ could retrospectively be diagnosed with AMR and developed CLAD. CONCLUSION: Although rare, diffuse C4d deposition appears to be a strong indication of acute clinical AMR in lung transplant patients, whereas intermediate C4d2+ requires more investigations. In stable patients, histopathology and C4d may lack the sensitivity to diagnose subclinical AMR. This emphasises the need for a multidisciplinary evaluation of each suspected AMR case, and the need for complementary diagnostic tools.


Assuntos
Anticorpos/imunologia , Complemento C4b/metabolismo , Rejeição de Enxerto/etiologia , Transplante de Pulmão , Fragmentos de Peptídeos/metabolismo , Adulto , Biópsia , Feminino , Rejeição de Enxerto/diagnóstico , Rejeição de Enxerto/imunologia , Humanos , Imuno-Histoquímica , Pulmão/imunologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
9.
PLoS One ; 8(10): e75740, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24098396

RESUMO

Breathing is maintained and controlled by a network of automatic neurons in the brainstem that generate respiratory rhythm and receive regulatory inputs. Breathing complexity therefore arises from respiratory central pattern generators modulated by peripheral and supra-spinal inputs. Very little is known on the brainstem neural substrates underlying breathing complexity in humans. We used both experimental and theoretical approaches to decipher these mechanisms in healthy humans and patients with chronic obstructive pulmonary disease (COPD). COPD is the most frequent chronic lung disease in the general population mainly due to tobacco smoke. In patients, airflow obstruction associated with hyperinflation and respiratory muscles weakness are key factors contributing to load-capacity imbalance and hence increased respiratory drive. Unexpectedly, we found that the patients breathed with a higher level of complexity during inspiration and expiration than controls. Using functional magnetic resonance imaging (fMRI), we scanned the brain of the participants to analyze the activity of two small regions involved in respiratory rhythmogenesis, the rostral ventro-lateral (VL) medulla (pre-Bötzinger complex) and the caudal VL pons (parafacial group). fMRI revealed in controls higher activity of the VL medulla suggesting active inspiration, while in patients higher activity of the VL pons suggesting active expiration. COPD patients reactivate the parafacial to sustain ventilation. These findings may be involved in the onset of respiratory failure when the neural network becomes overwhelmed by respiratory overload We show that central neural activity correlates with airflow complexity in healthy subjects and COPD patients, at rest and during inspiratory loading. We finally used a theoretical approach of respiratory rhythmogenesis that reproduces the kernel activity of neurons involved in the automatic breathing. The model reveals how a chaotic activity in neurons can contribute to chaos in airflow and reproduces key experimental fMRI findings.


Assuntos
Encéfalo/fisiologia , Encéfalo/fisiopatologia , Respiração , Encéfalo/patologia , Estudos de Casos e Controles , Humanos , Modelos Lineares , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Neurônios/citologia , Neurônios/patologia , Dinâmica não Linear , Doença Pulmonar Obstrutiva Crônica/patologia , Doença Pulmonar Obstrutiva Crônica/fisiopatologia
10.
Ann Thorac Surg ; 92(5): 1891-3, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22051290

RESUMO

Bronchovascular fistula is a rare complication after lung transplantation, which usually has a fatal outcome. We describe the case of successful surgical treatment of bronchovascular fistula of the left upper pulmonary vein and the left main bronchus.


Assuntos
Fístula Brônquica/cirurgia , Transplante de Pulmão/efeitos adversos , Veias Pulmonares , Fístula Vascular/cirurgia , Idoso , Fístula Brônquica/etiologia , Humanos , Masculino , Indução de Remissão , Fístula Vascular/etiologia
11.
Eur J Cardiothorac Surg ; 40(6): 1419-24, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21497510

RESUMO

OBJECTIVE: This study aimed to describe and to analyze early severe digestive complications (ESDC) after lung transplantation (LT) in our center. METHODS: A retrospective study included 351 patients, who underwent LT without cardiopulmonary bypass (CPB) at our center between March 1988 and December 2009. There were 86 double LTs and 265 single LTs. ESDCs were defined as complications (1) occurring during the first 30 days after transplantation or during initial hospitalization if longer; (2) involving the gastrointestinal tract; and (3) jeopardizing survival or requiring invasive therapeutic procedure. Patients' characteristics, associated risk factors, and influence of ESDC on early outcome have been analyzed. RESULTS: During the first 30 days after LT or initial hospitalization if longer, 26 ESDCs occurred in 26 patients (rate 7.4%, sex ratio M/F 66%, mean age 56 ± 6 years). This included 10 acute cholecystitis (38%), four angiocholitis (15%), three perforated gastroduodenal ulcers (11%), three digestive perforations (11%), two intestinal occlusions (8%), two mesenteric ischemia (8%), and two acute pancreatitis (8%). ESDC occurred after a mean postoperative follow-up of 14 days (5-46), required emergency surgical treatment in 20 cases (77%), significantly prolonged the mean duration of hospitalization (96 days with ESDC vs 55 days without ESDC, p < 0.0001), and was responsible for death in five cases (19%). Surgical treatment included cholecystectomy (n = 11), bowel resection (n = 3), ulcer surgery (n = 2), subtotal colectomy (n = 2), Hartmann procedure (n = 1), and open coelioscopy (n = 1). Age and bilateral LT were found to be significant risk factors for ESDC in both uni- and multivariate analyses. CONCLUSION: ESDC occurred in 7.4% of patients after LT without CPB, and was responsible for longer in-hospital stay. Relevant risk factors included older age and bilateral LT, interfering with current debate regarding recipients' selection and procedure's choice.


Assuntos
Doenças do Sistema Digestório/etiologia , Transplante de Pulmão/efeitos adversos , Adulto , Colangite/etiologia , Colecistite Aguda/etiologia , Doenças do Sistema Digestório/terapia , Métodos Epidemiológicos , Feminino , Humanos , Transplante de Pulmão/métodos , Masculino , Pessoa de Meia-Idade , Úlcera Péptica/etiologia , Período Pós-Operatório , Prognóstico , Resultado do Tratamento
12.
Ann Intern Med ; 151(11): 767-74, 2009 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-19949142

RESUMO

BACKGROUND: Patients with end-stage idiopathic pulmonary fibrosis (IPF) are increasingly having bilateral rather than single-lung transplantation. OBJECTIVE: To compare survival after single and bilateral lung transplantation in patients with IPF. DESIGN: Analysis of data from the United Network of Organ Sharing registry. SETTING: Transplantation centers in the United States. PATIENTS: 3327 patients with IPF who had single (2146 patients [64.5%]) or bilateral (1181 patients [35.5%]) lung transplantation between 1987 and 2009. MEASUREMENTS: Survival times and causes of death after lung transplantation. Selection bias was accounted for by multivariate risk adjustment, propensity score risk adjustment, and propensity-based matching. RESULTS: Median survival time was longer after bilateral lung transplantation than single-lung transplantation (5.2 years [CI, 4.3 to 6.7 years] vs. 3.8 years [CI, 3.6 to 4.1 years]; P < 0.001). However, survival times for the 2 procedures did not differ after adjustment for baseline differences, with adjusted hazard ratios (HRs) for mortality with bilateral transplantation ranging from 0.89 (95% CI, 0.79 to 1.02) to 0.96 (CI, 0.77 to 1.20) in different analyses. Bilateral lung transplantation seemed to result in harm within the first year (HR, 1.18 [CI, 0.98 to 1.42]) but survival benefit thereafter (HR, 0.72 [CI, 0.59 to 0.87]). Primary graft failure was a more common cause of death among patients who had bilateral rather than single-lung transplantation (3.7% vs. 1.9%; P = 0.002). Cancer was a more common cause of death among patients who had single rather than bilateral lung transplantation (unadjusted HR for death among single vs. bilateral transplant recipients, 3.60 [CI, 2.16 to 6.05]; P <0.001). LIMITATION: Causes of death were ascertained without an adjudication committee and must be interpreted cautiously. CONCLUSION: Survival did not differ between patients who had single and bilateral lung transplantation. Single-lung transplantation confers short-term survival benefit but long-term harm, whereas bilateral transplantation confers short-term harm but long-term survival benefit. PRIMARY FUNDING SOURCE: None.


Assuntos
Fibrose Pulmonar Idiopática/cirurgia , Transplante de Pulmão/mortalidade , Transplante de Pulmão/métodos , Causas de Morte , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Pontuação de Propensão , Risco Ajustado , Estados Unidos/epidemiologia
14.
Transplantation ; 86(4): 515-20, 2008 Aug 27.
Artigo em Inglês | MEDLINE | ID: mdl-18724219

RESUMO

BACKGROUND: Lymphangioleiomyomatosis (LAM) is a rare disease, leading in some cases to end-stage respiratory failure. Lung transplantation (LT) represents a therapeutic option in advanced pulmonary LAM. METHODS: We conducted a retrospective multicenter study of 44 patients who underwent LT for LAM at 9 centers in France between 1988 and 2006. RESULTS: All patients were women with a mean age of 41+/-10 years at LT. There were 34 single-lung transplants and 11 bilateral transplants (one retransplantation). Prior clinical events related to LAM were present in 75% of the patients and previous thoracic surgical procedures were noted in 86.6% of cases. At the latest preoperative evaluation, 30 patients had an obstructive pattern (mean forced expiratory volume in 1 second: 26%+/-14% of predicted) and 15 had a combined restrictive and obstructive pattern, with a mean KCO=27%+/-8.8% of predicted, PaO2=52.8+/-10.4 and PaCO2=42.6+/-9.8 mm Hg. Intraoperative cardiopulmonary bypass was required in 13 cases. The length of mechanical ventilation was 7.5+/-12.8 days. The median duration of follow-up was 37 months. The 1, 2, 5, and 10 years survival rates were 79.6%, 74.4%, 64.7%, and 52.4%, respectively. Extensive pleural adhesions were found in 21 patients leading to severe intraoperative hemorrhage. Postoperative LAM-related complications were pneumothorax in the native lung in five patients, chylothorax in six, bronchial dehiscence or stenosis in seven. There were two cases of recurrence of LAM. CONCLUSION: Despite a high morbidity mainly caused by previous surgical interventions and disease-related complications, LT is a satisfactory therapeutic option for end-stage respiratory failure in LAM.


Assuntos
Neoplasias Pulmonares/cirurgia , Transplante de Pulmão/estatística & dados numéricos , Linfangioleiomiomatose/cirurgia , Adulto , Biópsia , Feminino , França , Lateralidade Funcional , Teste de Histocompatibilidade , Humanos , Complicações Intraoperatórias/epidemiologia , Linfangioleiomiomatose/fisiopatologia , Pessoa de Meia-Idade , Consumo de Oxigênio , Testes de Função Respiratória , Estudos Retrospectivos , Fumar/epidemiologia , Inquéritos e Questionários , Falha de Tratamento , Resultado do Tratamento
15.
Chest ; 131(5): 1435-41, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17400661

RESUMO

BACKGROUND: There is no recognized medical treatment for chronic pulmonary aspergillosis (CPA) apart from surgery in patients with simple aspergilloma. To evaluate the efficacy of voriconazole in this setting, we conducted a retrospective multicenter study over a 3-year period. METHODS: For inclusion in the study, patients had to have received voriconazole for treatment of confirmed or probable CPA with a follow-up of at least 6 months. Clinical, radiologic, and mycologic data were collected at baseline, every 2 to 3 months, and at the end of treatment or at the date point. RESULTS: Twenty-four patients were included in the study, among which 9 patients presented with chronic cavitary pulmonary aspergillosis and 15 presented with chronic necrotizing pulmonary aspergillosis (CNPA). Voriconazole was given as a first-line treatment to 13 patients. The median duration of treatment and follow-up were 6.5 and 10 months, respectively. Three patients had to stop treatment with voriconazole because of toxicity. Symptoms and imagery findings were improved in 16 of 24 patients and 17 of 24 patients, respectively, at the end of follow-up. Mycology, which was positive at baseline in 21 of 23 patients, was negative in 18 of 19 patients at the end of follow-up; serologic test results were also negative in 6 of 19 evaluable patients, all of whom had CNPA. Improved radioclinical findings and mycologic eradication were observed at the end of follow-up in 11 of 19 patients (58%). Patients in whom the disease was controlled had a significantly longer median duration of treatment than patients in whom it was uncontrolled (9 vs 6 months, respectively; p = 0.04). CONCLUSION: Voriconazole provides effective treatment of CPA with an acceptable level of toxicity.


Assuntos
Antifúngicos/uso terapêutico , Aspergilose Broncopulmonar Alérgica/tratamento farmacológico , Imunocompetência , Pirimidinas/uso terapêutico , Triazóis/uso terapêutico , Adulto , Idoso , Antifúngicos/efeitos adversos , Aspergilose Broncopulmonar Alérgica/imunologia , Doença Crônica , Estudos de Coortes , Relação Dose-Resposta a Droga , Feminino , Seguimentos , Humanos , Pulmão/imunologia , Pulmão/microbiologia , Masculino , Pessoa de Meia-Idade , Pirimidinas/efeitos adversos , Estudos Retrospectivos , Triazóis/efeitos adversos , Voriconazol
16.
Transplantation ; 81(12): 1628-32, 2006 Jun 27.
Artigo em Inglês | MEDLINE | ID: mdl-16794526

RESUMO

BACKGROUND: Thrombotic microangiopathy may develop after solid organ transplantation, but it is usually not associated with severe deficiency in von Willebrand factor-cleaving metalloprotease (ADAMTS 13) activity. METHODS: We present the cases of two lung transplant recipients who experienced a thrombotic microangiopathy associated with an acquired severe (<5%) deficiency in ADAMTS 13 activity. RESULTS: A major feature of both cases was the occurrence of a diffuse alveolar hemorrhage. CONCLUSION: Our two cases of lung transplant patients, with thrombotic microangiopathy related to an acquired ADAMTS 13 deficiency recipients, confirm that this mechanism may also be involved in the pathogenesis of thrombotic microangiopathy developing after solid organ transplantation. Therefore, we consider that ADAMTS 13 activity should be assessed on a systematic basis in this setting.


Assuntos
Proteínas ADAM/deficiência , Transplante de Pulmão , Trombose/patologia , Proteínas ADAM/genética , Proteínas ADAM/metabolismo , Proteína ADAMTS13 , Adulto , Biópsia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
17.
Transplantation ; 81(5): 746-50, 2006 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-16534477

RESUMO

BACKGROUND: Lung transplantation (LT) may represent a therapeutic option in case of advanced pulmonary Langerhans' cell histiocytosis (PLCH). Little is known however about the characteristics of the patients considered for LT or its results. METHODS: We conducted a retrospective multicenter study by questionnaire on 39 patients who underwent LT for end-stage PLCH at seven centers in France. RESULTS: Of the 39 patients, 15 received single lung transplantation, 15 double lung transplantation and 9 heart-lung transplantation. At evaluation, extrapulmonary involvement was present in 31% of the patients, pulmonary hypertension (PAPm>25 mm Hg) was observed in 92% of cases and was moderate-to-severe (PAPm> or =35 mm Hg) in 72.5%. The survival was 76.9% at 1 year, 63.6% at 2 years, 57.2% at 5 years, and 53.7% at 10 years. Recurrence of the disease occurred in eight cases (20.5%) with no impact on the survival rate. The sole risk factor for recurrence of the disease was the presence of preoperative extrapulmonary involvement. CONCLUSION: Severe pulmonary hypertension is a common feature in patients with end-stage PLCH. Given the good postransplant survival rate and despite a recurrence rate of the disease of approximately 20% after LT, we conclude that LT is a therapeutic option in this setting.


Assuntos
Histiocitose de Células de Langerhans/diagnóstico , Histiocitose de Células de Langerhans/cirurgia , Hipertensão Pulmonar/diagnóstico , Pneumopatias/diagnóstico , Pneumopatias/cirurgia , Transplante de Pulmão , Adolescente , Adulto , Feminino , Transplante de Coração-Pulmão/mortalidade , Histiocitose de Células de Langerhans/mortalidade , Humanos , Hipertensão Pulmonar/mortalidade , Hipertensão Pulmonar/cirurgia , Pneumopatias/mortalidade , Transplante de Pulmão/mortalidade , Masculino , Pessoa de Meia-Idade , Recidiva , Estudos Retrospectivos , Resultado do Tratamento
18.
Artigo em Inglês | MEDLINE | ID: mdl-18046897

RESUMO

Lung volume reduction surgery (LVRS) has been shown to improve lung function and exercise tolerance in patients with severe emphysema. Some predictors of poor outcome have been described but the role of alpha1-antitrypsin (alpha1-AT) deficiency is still not well known. The aim of this study was to analyze the results of unilateral LVRS in our center according to the alpha1-AT status. The results of LVRS in 17 deficient patients and 35 nondeficient patients were analyzed at 3-6 months and 1 year after surgery. Compared with baseline, a significant improvement of FEV1, partial pressure in arterial blood (PaO2), dyspnea score and walking distance was observed in the two groups at 3-6 months after surgery and the studied parameters remained significantly improved at 1 year in the nondeficient group. By contrast, PaO2 and walking distance returned towards baseline in the deficient group at 1 year whereas improvement of FEV1 and dyspnea score was persistent. Mean values of FEV, at baseline, 3-6 months, and 1 year were 22 +/- 6%, 29 +/- 11%, and 26 +/- 9% and 28 +/- 12%, 38 +/- 17%, and 40 +/- 17% predicted in the deficient group and in the non-deficient group, respectively. In conclusion, the functional benefit is short-lasting in alpha1-AT deficient patients after unilateral LVRS.


Assuntos
Enfisema/complicações , Enfisema/cirurgia , Pneumonectomia/métodos , Deficiência de alfa 1-Antitripsina/complicações , Deficiência de alfa 1-Antitripsina/cirurgia , Enfisema/fisiopatologia , Volume Expiratório Forçado , Humanos , Pessoa de Meia-Idade , Testes de Função Respiratória , Deficiência de alfa 1-Antitripsina/fisiopatologia
20.
Rev Pneumol Clin ; 61(3): 232-8, 2005 Jun.
Artigo em Francês | MEDLINE | ID: mdl-16142197

RESUMO

Lung transplantation has been developed over the last fifteen years as a therapeutic option for different forms of advanced-stage lung disease. Idiopathic pulmonary fibrosis is a good indication. For these patients, single lung transplantation is usually preferred, bilateral lung transplantation to a lesser extent. Survival is similar for these two types of transplantation. The post-transplantation survival in patients with pulmonary fibrosis is about 65-70% at one year and 40% at five years. This rate is lower than observed for COPD or cystic fibrosis. If there are no complications, the patient can recover nearly normal lifestyle. Among the different complications, reimplantation edema, infection, rejection, and bronchial complications predominate. Chronic rejection, also called obliterative bronchiolitis syndrome, is a later complication which can be observed in about half of the patients. Improvement in graft survival depends greatly in improvement in prevention and management of complications. Despite such complications, graft survival in fibrosis patients is greater than spontaneous survival on the waiting list; idiopathic fibrosis is associated with the highest mortality on the waiting list. Patients should be referred early for the pre-transplantation work-up because individual prognosis is very difficult to predict.


Assuntos
Transplante de Pulmão , Fibrose Pulmonar/cirurgia , Sobrevivência de Enxerto , Humanos , Fibrose Pulmonar/mortalidade , Taxa de Sobrevida , Listas de Espera
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