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1.
Breathe (Sheff) ; 20(1): 230186, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38595938

RESUMO

Pneumonia is a clinical syndrome characterised by fever, cough and alveolar infiltration of purulent fluid, caused by infection with a microbial pathogen. It can be caused by infections with bacteria, viruses or fungi, but a causative organism is identified in less than half of cases. The most common type of pneumonia is community-acquired pneumonia, which is caused by infections acquired outside the hospital. Current guidelines for pneumonia diagnosis require imaging to confirm the clinical suspicion of pneumonia. Thus, imaging plays an important role in both the diagnosis and management of pneumonia, with each modality having specific advantages and limitations. Chest radiographs are commonly used but have limitations in terms of sensitivity and specificity. Lung ultrasound shows high sensitivity and specificity. Computed tomography scans offer higher diagnostic accuracy but involve higher radiation doses. Radiological patterns, including lobar, lobular and interstitial pneumonia, provide valuable insights into causative pathogens and treatment decisions. Understanding these radiological patterns is crucial for accurate diagnosis. In this review, we will summarise the most important aspects pertaining to the role of imaging in pneumonia and will highlight the imaging characteristics of the most common causative organisms.

2.
Turk Thorac J ; 20(1): 1-5, 2019 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-30664419

RESUMO

OBJECTIVES: Obesity is a risk factor defined in recent years for asthma. It is associated not only with asthma but also with many cardiovascular diseases. Visceral obesity is a more significant risk factor than general obesity in cardiovascular diseases. Although the association of visceral obesity with cardiovascular diseases is well known, the relationship in patients with asthma is not fully understood. The aim of the present study was to investigate whether there is a relationship between asthma and visceral fat by using epicardial fat thickness (EFT) measurement. MATERIALS AND METHODS: A total of 401 subjects (229 patients with persistent asthma and 172 controls) were enrolled in the study. In our study, EFT was measured, recorded by echocardiography, and was evaluated whether there was a statistical significant difference between the two groups. RESULTS: The mean EFT was 5.84±0.79 mm in the patient group and 5.71±0.93 mm in the control group. There was no statistically significant difference between the groups (p=0.145). Similarly, when we compared control and asthma severity subgroups, we did not find statistically significant differences (control group mean 5.71±0.93 mm, mild group mean 5.86±0.81 mm, moderate group mean 5.8±0.84 mm, and severe group mean 5.83±0.67 mm, p=0.505). CONCLUSION: In the present study, we observed that the EFT did not increase in patients with asthma compared with the normal population. Based on our results, we suggest that visceral obesity may not be a significant risk factor for asthma.

3.
Ann Thorac Med ; 12(4): 272-277, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29118860

RESUMO

STUDY OBJECTIVES: Obstructive sleep apnea (OSA) is common in adult populations. Accumulating data indicate that it is independently associated with a variety of cardiovascular diseases and has prognostic importance in affected cases. In this study, we aimed to evaluate coronary flow reserve (CFR) in patients with OSA and controls. METHODS: Sixty-one patients undergoing an overnight polysomnography were enrolled in this study. Patients with an apnea-hypopnea index (AHI) >5 were accepted as OSA group (n = 45) and those with an AHI <5 were taken as controls (n = 16). Using Doppler echocardiography at baseline and following dipyridamole infusion, coronary peak flow velocities were obtained. CFR was calculated as the ratio of peak diastolic flow to baseline diastolic flow. A CFR value <2 was accepted as impaired coronary microvascular function. RESULTS: The mean age was 50.8 ± 10.8 years, of which 16 (26.2%) were female. Both groups had similar features with regard to demographic and clinical variables. The mean value of CFR was significantly lower in patients with OSA compared to those controls (2.24 ± 0.46 vs. 2.74 ± 0.62, respectively, P = 0.001). An abnormal CFR value was observed in 12 (26.7%) patients with OSA and in 1 (6.3%) participant in control group. CONCLUSIONS: The findings of this study indicate that CFR, an indicator of coronary microvascular function, is significantly impaired in patients with OSA. Coronary microvascular function, an early sign of atherosclerosis, can be evaluated noninvasively in these patients might be used as a predictor of cardiovascular risk.

4.
Ren Fail ; 37(2): 203-8, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25387208

RESUMO

Diagnosis of latent Mycobacterium tuberculosis infection (LTBI) by the tuberculin skin test (TST) is hampered due to anergy and impaired sensitivity in chronic renal failure (CRF) patients. We aimed to compare the diagnostic performance of the TST with that of interferon-gamma immunospot (T-SPOT.TB®) assay in diagnosing LTBI in CRF and immunocompetent (IC) patients. A total of 74 CRF and 75 IC patients prospectively underwent the TST and T-SPOT.TB. Latent M. tuberculosis infection estimated by TST and T-SPOT.TB was detected in 69% and 43 of CRF; 52 and 35% of IC patients, respectively. The sensitivity and specificity of the T-SPOT.TB were 73 and 74% in IC, whereas 50 and 55% in CRF patients. In conclusion, the prevalence of LTBI was noteworthy in both IC and CRF patients. T-SPOT.TB was less sensitive and specific than the IC group in CRF patients. Both T-SPOT.TB and TST were not associated with the TB exposure.


Assuntos
Imunocompetência/imunologia , Hospedeiro Imunocomprometido/imunologia , Interferon gama/farmacologia , Falência Renal Crônica , Tuberculose Latente , Adulto , Antivirais/farmacologia , ELISPOT/métodos , Feminino , Humanos , Falência Renal Crônica/complicações , Falência Renal Crônica/imunologia , Tuberculose Latente/complicações , Tuberculose Latente/diagnóstico , Tuberculose Latente/imunologia , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Teste Tuberculínico/métodos
5.
Am J Respir Crit Care Med ; 190(10): 1168-76, 2014 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-25303140

RESUMO

RATIONALE: In the absence of active tuberculosis, a positive tuberculin skin test (TST) or interferon-γ release assay (IGRA) result defines latent infection with Mycobacterium tuberculosis, although test results may vary depending on immunodeficiency. OBJECTIVES: This study compared the performance of TST and IGRAs in five different groups of immunocompromised patients, and evaluated their ability to identify those at risk for development of tuberculosis. METHODS: Immunocompromised patients with HIV infection, chronic renal failure, rheumatoid arthritis, solid-organ or stem-cell transplantation, and healthy control subjects were evaluated head-to-head by the TST, QuantiFERON-TB-Gold in-tube test (ELISA), and T-SPOT.TB test (enzyme-linked immunospot) at 17 centers in 11 European countries. Development of tuberculosis was assessed during follow-up. MEASUREMENTS AND MAIN RESULTS: Frequencies of positive test results varied from 8.7 to 15.9% in HIV infection (n = 768), 25.3 to 30.6% in chronic renal failure (n = 270), 25.0% to 37.2% in rheumatoid arthritis (n = 199), 9.0 to 20.0% in solid-organ transplant recipients (n = 197), 0% to 5.8% in stem-cell transplant recipients (n = 103), and 11.2 to 15.2% in immunocompetent control subjects (n = 211). Eleven patients (10 with HIV infection and one solid-organ transplant recipient) developed tuberculosis during a median follow-up of 1.8 (interquartile range, 0.2-3.0) years. Six of the 11 patients had a negative or indeterminate test result in all three tests at the time of screening. Tuberculosis incidence was generally low, but higher in HIV-infected individuals with a positive TST (3.25 cases per 100 person-years) than with a positive ELISA (1.31 cases per 100 person-years) or enzyme-linked immunospot result (1.78 cases per 100 person-years). No cases of tuberculosis occurred in patients who received preventive chemotherapy. CONCLUSIONS: Among immunocompromised patients evaluated in this study, progression toward tuberculosis was highest in HIV-infected individuals and was poorly predicted by TST or IGRAs. Clinical trial registered with www.clinicaltrials.gov (NCT 00707317).


Assuntos
Hospedeiro Imunocomprometido , Testes de Liberação de Interferon-gama , Tuberculose Latente/diagnóstico , Teste Tuberculínico , Adulto , Idoso , Artrite Reumatoide/imunologia , Estudos de Coortes , Estudos Transversais , Feminino , Infecções por HIV/imunologia , Humanos , Falência Renal Crônica/imunologia , Masculino , Pessoa de Meia-Idade , Transplante de Órgãos , Medição de Risco , Transplante de Células-Tronco
6.
Mol Biol Rep ; 40(10): 5625-33, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24057178

RESUMO

Different biochemical pathways and cellular mechanisms play role in the pathogenesis of pulmonary hypertension (PH) in chronic obstructive pulmonary disease (COPD). Alveolar hypoxia is not the only determinant of vascular remodeling, genetic factors are thought to have additive effects. We aimed to investigate the effects of endothelial nitric oxide synthase (eNOS A/B), angiotensin converting enzyme (ACE I/D) and serotonin transporter (5-HTT L/S) gene polymorphisms on development and severity of PH in COPD patients. 50 COPD patients without PH (group 1); 30 COPD patients with PH confirmed with echocardiography (group 2) and 49 healthy subjects (group 3) as control group were included to the study. eNOS A/B, ACE I/D and 5-HTT L/S gene polymorphisms and allele frequencies of COPD patients with and without PH and healthy subjects were determined. Functional parameters and echocardiographic measurements were recorded. Patients with PH were also assessed in two subgroups according to the severity of pulmonary arterial pressure (PAP). Significant differences among three groups in the distribution of 5-HTT genotype and allele frequency were present (respectively p = 0.002; p = 0.021). In group 2, LL and LS genotype rate was 93.3 % with a frequency of 71.2 % L allele and 28.3 % of S allele. 5-HTT LL genotype was present in 88.9 % of patients with PAP ≥50 mmHg significantly (p = 0.012). Other genotype distributions were not significantly different between two subgroups. The results of this study can suggest that COPD patients with L allele of 5-HTT may have higher risk for the development of PH and patients with LL genotype of 5-HTT may present higher PAP. We also demonstrated that eNOS and ACE gene polymorphisms were not associated with the development and severity of PH in our study population. Further studies with larger numbers of patients are needed to explore these relationships.


Assuntos
Predisposição Genética para Doença , Hipertensão Pulmonar/genética , Óxido Nítrico Sintase Tipo III/genética , Peptidil Dipeptidase A/genética , Polimorfismo Genético , Doença Pulmonar Obstrutiva Crônica/genética , Proteínas da Membrana Plasmática de Transporte de Serotonina/genética , Gasometria , Proteína C-Reativa/metabolismo , Estudos de Casos e Controles , Demografia , Eletrocardiografia , Frequência do Gene/genética , Estudos de Associação Genética , Humanos , Hipertensão Pulmonar/complicações , Hipertensão Pulmonar/enzimologia , Hipertensão Pulmonar/fisiopatologia , Mutação INDEL/genética , Doença Pulmonar Obstrutiva Crônica/complicações , Doença Pulmonar Obstrutiva Crônica/enzimologia , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Índice de Gravidade de Doença , Fumar/efeitos adversos
7.
J Bronchology Interv Pulmonol ; 19(2): 115-20, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23207353

RESUMO

BACKGROUND: Conventional transbronchial needle aspiration (C-TBNA) has been proven to be a safe, minimally invasive, and cost-effective technique in establishing the diagnosis of mediastinal pathologies. We studied the success of C-TBNA in our community practice, in patients with mediastinal lymphadenopathies. MATERIALS AND METHODS: The technique of C-TBNA was learned solely from the literature, videos, and by practicing on inanimate models during "hands-on" courses. Conventional TBNA with 21- and/or 19-gauge Smooth Shot Needles was performed on consecutive patients with undiagnosed mediastinal lymphadenopathy. RESULTS: Fifty-four patients (38 men), mean age 56.9±11.8 years, underwent C-TBNA. Thirty-three patients had nodes >20 mm. The final diagnoses were malignancy, 29; sarcoidosis, 9; reactive lymph nodes, 15; and tuberculosis, 1. The final diagnosis was established by C-TBNA in 27. The exclusive diagnostic yield of TBNA was 42.5% (n: 23). Nodal size had an impact on outcome (P=0.002), whereas location did not (P=0.82). C-TBNA was positive in 22/34 when malignancy was suspected (yield 64.7%) and positive in 5/20 when benign diagnoses were also included in the differential (yield 25%) (P=0.005). The sensitivity, specificity, positive predicted value, negative predicted value, and diagnostic accuracy were 79.4%, 100%, 100%, 73%, and 81.5%, respectively. CONCLUSIONS: C-TBNA can be successfully learned without formal training and can be easily applied in the community practice.


Assuntos
Broncoscopia/métodos , Doenças Linfáticas/patologia , Doenças do Mediastino/patologia , Adulto , Idoso , Biópsia por Agulha Fina/métodos , Biópsia por Agulha Fina/normas , Broncoscopia/normas , Feminino , Humanos , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/secundário , Doenças Linfáticas/etiologia , Masculino , Doenças do Mediastino/etiologia , Pessoa de Meia-Idade , Sarcoidose Pulmonar/patologia , Sensibilidade e Especificidade , Tuberculose Pulmonar/patologia
8.
Ann Thorac Med ; 6(3): 131-6, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21760844

RESUMO

BACKGROUND: Bronchiectasis continues to be one of the major causes of morbidity and mortality in developing countries, with a probably underestimated higher prevalence than in developed countries. OBJECTIVE: To assess the clinical profile of adult patients with bronchiectasis. METHODS: We retrospectively reviewed the clinical, radiologic, and physiologic findings of 304 patients with bronchiectasis confirmed by high-resolution computed tomography. RESULTS: Mean age of participants (45.7% males, 54.3% females) was 56 ± 25 years and 65.8% of them were lifetime non-smokers. Most common identified causes of bronchiectasis were childhood disease (22.7%), tuberculosis (15.5%), and pneumonia (11.5%). The predominant symptoms were productive cough (83.6%), dyspnea (72%), and hemoptysis (21.1%). The most common findings on chest examination were crackles (71.1%) and rhonchi (28.3%). Types of bronchiectasis were cylindrical in 47%, varicose in 9.9%, cystic in 45.1%, and multiple types in 24.3%. Involvement was multilobar in 75.3% and bilateral in 62.5%. Of 274 patients, 20.8% displayed normal pulmonary function test results, whereas 47.4%, 8% and 23.7% showed obstructive, restrictive, and mixed pattern, respectively. Patients with cystic disease had a higher frequency of hemoptysis (42%) and a greater degree of functional impairment, compared to other types. CONCLUSION: In patients with bronchiectasis from southern Turkey, generally presenting with recurrent productive cough, hemoptysis, dyspnea, and persistent bibasilar rales, the etiology remains mainly idiopathic. Post-infectious bronchial destruction is one of the major identified underlying pathological processes. The clinical picture and the deterioration of the pulmonary function test might be more severe in patients with cystic type bronchiectasis.

9.
Clin Appl Thromb Hemost ; 17(6): E87-94, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21078611

RESUMO

Venous thromboembolism (VTE) is a universal health hazard. Inherited and acquired risk factors increase the risk of VTE. We evaluated the relationship between factor V (G1691A, A1090G, and A1299G), prothrombin (PT G20210A), methylenetetrahydrofolate reductase (MTHFR C677T) mutations, plasminogen activator inhibitor 1 (PAI-1 -675) polymorphism, and VTE in Turkish population. In all, 80 patients with VTE and 104 controls were included. Heterozygous factor V Leiden (FVL) mutation was significantly higher among patients (P = .04) with allele frequency of 6.3% (P = .01). Heterozygous PT G20210A mutation was also significantly higher among patients (P = .001) with allele frequency of 6.9% (P = .003). MTHFR 677TT genotype was significantly higher in patients (P = .009) with allele frequency of 23.8% (P = .005). No significant difference was found in FV A1090G and FV A1299G mutation rate as well as PAI-1 genotypes and their allele frequencies (P > .05). Thus, frequencies of FV G1691A, PT G20210A, and MTHFR C677T mutations are higher in patients with VTE. FV A1090G, FV A1299G mutations, and PAI-1 gene polymorphisms may not be a risk factor for VTE in Turkish population.


Assuntos
Mutação , Embolia Pulmonar/genética , Trombose Venosa/genética , Adolescente , Adulto , Estudos de Casos e Controles , Fator V/genética , Predisposição Genética para Doença , Genótipo , Humanos , Masculino , Metilenotetra-Hidrofolato Redutase (NADPH2)/genética , Pessoa de Meia-Idade , Inibidor 1 de Ativador de Plasminogênio/genética , Polimorfismo de Nucleotídeo Único , Estudos Prospectivos , Protrombina/genética , Turquia , Adulto Jovem
10.
Jpn J Infect Dis ; 63(6): 433-6, 2010 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21099095

RESUMO

The diagnosis of active and latent tuberculosis infection (LTBI) remains a challenge, especially in light of the fact that the tuberculin skin test (TST), which has been used to diagnose LTBI for over a century, has many well-known drawbacks. This study aimed to compare the diagnostic performance of the T-cell-based interferon-gamma releasing assay (IGRA) T-SPOT.TB with the TST for the diagnosis of LTBI in an intermediate tuberculosis (TB)-burden country with high BCG coverage. For this purpose, a total of 91 participants, including culture-confirmed TB patients, healthy contacts known to have been exposed to Mycobacterium tuberculosis, and healthy volunteers, selected from a BCG-vaccinated population were recruited. The sensitivities of the T-SPOT.TB and TST were 79.3 and 25.8%, and the specificities were 75.9 and 56.7%, respectively. The negative- and positive-predictive values for T-SPOT.TB and TST were 78.6 and 76.7% and 42.5 and 38.1%, respectively. The diagnostic performance of the TST in LTBI diagnosis is therefore severely diminished in BCG-vaccinated populations, with the sensitivity and specificity of the T-SPOT.TB assay being markedly higher. IGRAs have been reported to have higher diagnostic sensitivity and specificity in low TB-incidence settings than those seen here. Further larger scale studies in high and intermediate TB-incidence settings are therefore warranted.


Assuntos
Interferon gama/biossíntese , Tuberculose Latente/diagnóstico , Linfócitos T/imunologia , Tuberculose Pulmonar/epidemiologia , Adulto , Vacina BCG/administração & dosagem , Vacina BCG/imunologia , Meios de Cultura , Humanos , Imunoensaio/métodos , Incidência , Tuberculose Latente/microbiologia , Pessoa de Meia-Idade , Mycobacterium tuberculosis/imunologia , Mycobacterium tuberculosis/isolamento & purificação , Valor Preditivo dos Testes , Sensibilidade e Especificidade , Teste Tuberculínico , Tuberculose Pulmonar/diagnóstico , Tuberculose Pulmonar/microbiologia , Tuberculose Pulmonar/prevenção & controle , Turquia/epidemiologia , Adulto Jovem
11.
J Bronchology Interv Pulmonol ; 17(4): 356-8, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23168963

RESUMO

Mycobacterium fortuitum is a rapidly growing environmental mycobacteria, frequently isolated from water, dust, and soil, which commonly causes infection in the presence of underlying disease or immunosuppression. Skin, soft tissue, and bones are important sites of M. fortuitum, but it may colonize in the respiratory tract as well. We report the case of an otherwise healthy man who presented with signs and symptoms of community-acquired pneumonia. He was diagnosed as having primary infection with M. fortuitum and treated with multidrug antibacterial therapy. Our case confirms that M. fortuitum poses a threat not only to patients with immune defects but also to immunocompetent hosts. Flexible bronchoscopy or a transthoracic needle aspiration may be required to confirm the diagnosis.

12.
Lung ; 187(3): 195-200, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19301068

RESUMO

STUDY OBJECTIVES: Pulmonary involvement is a major cause of morbidity and mortality in patients with sickle cell disease (SCD). Although a high prevalence of airway hyperresponsiveness (AHR) has been reported, there are no studies demonstrating the relationship between AHR and acute chest syndrome (ACS) in adults with SCD. We investigated AHR prevalence, lung function abnormalities, and the relationships of these variables with ACS in SCD patients. METHOD: Thirty-one adult patients without asthmatic symptoms were compared with 31 matched controls. Expiratory flow rates, lung volumes, carbon monoxide diffusion capacity (DLCO), and methacholine provocation test (MPT) results were assessed. RESULTS: Forced vital capacity (FVC), forced expiratory volume in one second, forced expiratory flow rate at 25% to 75% of FVC (FEF(25%-75%)), peak expiratory flow rate, total lung capacity, and DLCO values were significantly lower in the patient group than in the controls. No significant difference in pulmonary function test results was found between patients with and without a history of ACS. Fifteen patients with SCD (48%) and only 5 controls (16%) had AHR (p = 0.007). A significant correlation was found between the number of ACS episodes and MPT positivity (r = 0.379, p = 0.035). The FEF(25%-75%) values were significantly lower in patients with positive MPT results than in patients with negative MPT results (p = 0.027). CONCLUSION: The prevalence of AHR was high in adult patients with SCD. A significant correlation was found between AHR and recurrent ACS episodes. Anti-inflammatory controller agents can be used routinely to decrease pulmonary morbidity associated with SCD, even in the absence of asthmatic symptoms.


Assuntos
Anemia Falciforme/complicações , Hiper-Reatividade Brônquica/etiologia , Pulmão/fisiopatologia , Adolescente , Adulto , Anemia Falciforme/epidemiologia , Anemia Falciforme/fisiopatologia , Hiper-Reatividade Brônquica/epidemiologia , Hiper-Reatividade Brônquica/fisiopatologia , Estudos de Casos e Controles , Feminino , Fluxo Expiratório Forçado , Volume Expiratório Forçado , Humanos , Medidas de Volume Pulmonar , Masculino , Prevalência , Capacidade de Difusão Pulmonar , Capacidade Vital , Adulto Jovem
13.
Saudi J Kidney Dis Transpl ; 20(2): 254-9, 2009 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19237814

RESUMO

Tuberculosis (TB) remains a common problem in patients with chronic renal failure. In intensive care units, misdiagnosis or delayed diagnosis of TB is common. Therefore, a description of characteristics of active TB in patients with renal failure followed in intensive care units is important to reduce mortality and transmission of the disease. This study was performed to describe the characteristics of patients with renal failure admitted to the intensive care units and having active TB and evaluate predictive factors for in hospital mortality. The hospital records of 24 patients (11 women, 13 men) having ESRD and TB between 2001-2006 were reviewed. Clinical, radiological, and laboratory data on admission were recorded. Possible parameters contributing to in-hospital mortality were obtained from the medical records. In-hospital mortality rate was 66.6%. Factors associated with mortality were decreased partial pressure of oxygen and malnutrition. Fever was reported in 8 patients and hemoptysis was reported in 3 patients. Eight patients had consolidation on chest radiograph, while 4 had normal findings Seventeen patients had pulmonary involvement, and 11 had extra pulmonary involvement. The mortality rate in TB patients followed in intensive care units is high, with 3 factors contributing to in-hospital mortality. Clinicians should consider active TB in renal failure patients being followed in the intensive care unit, even when results of a chest radiograph are normal especially in patients with unexplained poor general health or respiratory failure.


Assuntos
Unidades de Terapia Intensiva , Falência Renal Crônica/complicações , Tuberculose Pulmonar/complicações , Transmissão de Doença Infecciosa/estatística & dados numéricos , Feminino , Seguimentos , Mortalidade Hospitalar/tendências , Humanos , Falência Renal Crônica/diagnóstico , Falência Renal Crônica/mortalidade , Transplante de Rim , Masculino , Pessoa de Meia-Idade , Prognóstico , Diálise Renal , Estudos Retrospectivos , Fatores de Risco , Tuberculose Pulmonar/diagnóstico , Tuberculose Pulmonar/mortalidade , Turquia/epidemiologia
14.
Exp Clin Transplant ; 6(4): 264-70, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19338487

RESUMO

OBJECTIVES: Pulmonary complications after liver transplant significantly affect mortality and morbidity; however, their relation has not been clearly established. We sought to determine pulmonary complications during the early and late term after liver transplant and identify risk factors for mortality. MATERIALS AND METHODS: At our institution, 130 liver transplant patients (mean age, 40.1 -/+ 14.6 years; 71.1% male) were retrospectively evaluated, and 114 adult orthotopic liver transplant patients were included. Cause of liver disease, pulmonary function test results, arterial blood gas analyses, surgery duration, length of stay in the intensive care unit and the hospital, pulmonary complications, and mortality causes were noted. RESULTS: Pulmonary complications were detected in 48 patients (42.1%), pneumonia in 24 patients (21.1%), and pleural effusion in 21 patients (18.4%). Development of pulmonary complications was found to be significantly related to survival (P = .001). Fifty-two patients (45.6%) were smokers, a significant predictor of pulmonary complications (P = .03). There was no relation between pulmonary function test results and orthodeoxia and pulmonary complications and mortality. Early and late survival rates were significantly lower in patients in whom a microorganism was isolated on deep tracheal aspirate culture, while early survival was significantly reduced in the presence of a pleural effusion (P < .005). CONCLUSIONS: Pulmonary complications after liver transplant are common. Care must be taken to determine preoperative risk factors, and patients should be observed closely for development of respiratory complications after liver transplant.


Assuntos
Transplante de Fígado/efeitos adversos , Transplante de Fígado/mortalidade , Pneumopatias/etiologia , Pneumopatias/mortalidade , Adulto , Causas de Morte , Feminino , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Derrame Pleural/etiologia , Derrame Pleural/mortalidade , Pneumonia/etiologia , Pneumonia/mortalidade , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Fumar/efeitos adversos , Fatores de Tempo
15.
Heart Lung ; 36(2): 148-53, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17362796

RESUMO

We report a 32-year-old man with herpes simplex virus encephalitis who developed massive pulmonary thromboembolism with mobile right atrial thrombi during treatment for this condition. It was not safe to use thrombolytic therapy because of the high risk of cerebral bleeding associated with encephalitis. The patient was initially treated at another center, but his condition deteriorated during nadroparin therapy and he was referred to our hospital. Nadroparin was discontinued, and a continuous infusion of unfractionated heparin was administered through a central venous catheter. The patient's general status improved over the next 24 hours, and all thrombi in the right atrium disappeared. There was immediate lysis of the thrombi after the continuous infusion of unfractionated heparin was initiated. We suggest that central-line infusion of this agent is preferable to peripheral infusion in such cases. Further research on the potential thrombolytic effect of heparin is needed.


Assuntos
Encefalite por Herpes Simples/complicações , Cardiopatias/complicações , Embolia Pulmonar/complicações , Trombose/complicações , Adulto , Anticoagulantes/uso terapêutico , Ecocardiografia Doppler , Encefalite por Herpes Simples/virologia , Fibrinolíticos/uso terapêutico , Átrios do Coração/patologia , Cardiopatias/tratamento farmacológico , Heparina/uso terapêutico , Herpesvirus Humano 1 , Herpesvirus Humano 2 , Humanos , Infusões Intravenosas , Masculino , Embolia Pulmonar/tratamento farmacológico , Trombose/tratamento farmacológico , Tomografia Computadorizada por Raios X
16.
Respiration ; 74(6): 703-5, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17237613

RESUMO

We describe an unusual case of a patient with eosinophilic pleural effusion (EPE) associated with long-term propylthiouracil (PTU) administration. A 43-year-old woman was admitted to our hospital after complaining of chest pain. She had had Graves' disease, which had been treated with PTU for 11 years. Right-sided pleural effusion was detected and the result of thoracentesis confirmed an EPE. The patient's detailed medical evaluation failed to reveal any other cause of EPE. PTU was terminated since it was thought to be the cause. Despite withdrawal of the medication, however, the pleural effusion persisted for 6 weeks, and steroid therapy was planned for 15 days in decreasing dosages. During the control visit 10 days after the initiation of steroid therapy, no pleural effusion was observed, and the steroid was discontinued. Rechallenge with PTU produced recurrent pleural effusion. Therapy with PTU was again terminated, and treatment with methimazole and a brief course of low-dose corticosteroids were begun. Chest radiography revealed disappearance of the effusion within 10 days and it did not recur during a 1-year follow-up. To our knowledge, there is only 1 other case in the English-language literature describing EPE caused by PTU. Our report is of particular importance because it describes the development of that disorder in the 11th year of PTU treatment. It also shows that steroid therapy can be effective in treating drug-induced EPE.


Assuntos
Antitireóideos/efeitos adversos , Eosinofilia/induzido quimicamente , Derrame Pleural/induzido quimicamente , Propiltiouracila/efeitos adversos , Corticosteroides/uso terapêutico , Adulto , Eosinofilia/diagnóstico , Eosinofilia/tratamento farmacológico , Feminino , Doença de Graves/tratamento farmacológico , Humanos , Derrame Pleural/diagnóstico , Derrame Pleural/tratamento farmacológico , Resultado do Tratamento
17.
Turk J Pediatr ; 48(1): 85-8, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16562794

RESUMO

Fire-eater's pneumonia is a distinct type of chemical pneumonitis that results from aspiration of different types of hydrocarbons. This article describes a case of fire-eater's pneumonia due to accidental aspiration of liquid paraffin. The adolescent patient became febrile the day after the accident. The diagnosis of fire-eater's pneumonia was delayed because aspiration history was not divulged by the patient from the beginning. The most prominent chest X-ray finding was multiple pneumatoceles. He responded well to antibiotics and corticosteroids. Two months after the accident, the lesions had almost completely resolved and only minor scarring was evident. Diagnosis of fire-eater's pneumonia can be difficult, especially if key aspects of related history are not divulged by the patient. Corticosteroid therapy was thought to be beneficial in the rapid recovery of the present case together with broad spectrum antibiotics.


Assuntos
Lesão Pulmonar , Parafina/efeitos adversos , Pneumonia/etiologia , Comportamento Autodestrutivo/complicações , Adolescente , Humanos , Inalação , Masculino , Parafina/administração & dosagem
18.
Am J Clin Oncol ; 28(4): 429-30, 2005 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-16062090

RESUMO

Malignant pleural effusions are rare in multiple myeloma (MM). We report a case of MM with left myelomatous pleural effusion, which reflects aggressive disease.


Assuntos
Mieloma Múltiplo/complicações , Mieloma Múltiplo/diagnóstico , Derrame Pleural Maligno/etiologia , Idoso , Humanos , Masculino , Pleura/diagnóstico por imagem , Derrame Pleural Maligno/diagnóstico por imagem , Radiografia , Costelas/diagnóstico por imagem , Trombocitopenia/etiologia
19.
Ren Fail ; 26(3): 273-8, 2004 May.
Artigo em Inglês | MEDLINE | ID: mdl-15354977

RESUMO

Twenty patients with end-stage renal failure who were on maintenance hemodialysis (HD) underwent pulmonary function testing (PFT) before and shortly after an HD session. On pre-HD PFT, the mean values of all parameters except residual volume (RV) were in the normal range. Mean RV was high (152.9%), and mean diffusing capacity of the lung for carbon monoxide (DLCO) was high-normal (110.4%). The pre-HD static inspiratory (PImax) and expiratory pressures (PEmax) were much lower than normal (67.4% and 36.3%, respectively). After the HD session, repeat PFT revealed a small increase in expiratory flow rates, and a significant drop in PImax. There was a strong correlation between PImax and PEmax (r=0.567, p<0.01) at the pre- and post-HD stages, indicating that common mechanism(s) are responsible for impairment of both inspiratory and expiratory muscle strength. The well-preserved DLCO was thought to be due to the use of biocompatible dialyzer membranes. Chronic vascular congestion might be the other explanation of high DLCO.


Assuntos
Pulmão/fisiologia , Diálise Renal , Mecânica Respiratória/fisiologia , Uremia/terapia , Adulto , Materiais Biocompatíveis , Feminino , Humanos , Masculino , Membranas Artificiais , Testes de Função Respiratória , Fatores de Tempo , Uremia/fisiopatologia
20.
Tuberk Toraks ; 51(2): 177-82, 2003.
Artigo em Turco | MEDLINE | ID: mdl-15143425

RESUMO

To discuss diagnosis, risk factors, clinical and radiologic manifestations of invasive pulmonary aspergillosis (IPA) that is accepted as an important mortality factor in organ transplant recipients. We retrospectively evaluated seven IPA cases who were diagnosed among 207 patients that had undergone organ transplantation surgery in our center between 1998-2001. Of seven patients, four was renal and three was liver recipients. Diagnosis was made histopathologically (three post-mortem, one transbronchial lung biopsy) in four patients while culture positivity (sputum and tracheal aspiration material) with clinical and radiological evaluation was the diagnostic criteria for three patients. The most common respiratory symptoms were fever, productive cough and dyspnea. The most common fiberoptic bronchoscopic findings were mucosal fragility, hemorrhage. In one patient plaque formation was found. One liver recipients had been on hemodialysis because of renal insufficiency (serum creatine was 2.6 mg/dL). All liver and kidney recipients had allograft failure. One liver and two kidney recipients had neutropenia, two liver and one kidney recipients had thrombocytopenia. Six patients had received amphotericin-B and/or itraconazole therapy. Four of the five exitus were receiving antifungal treatment. Three of them were lost in a short time while only one non-survivor had received itraconazole for three weeks. The most frequent CT findings were patchy infiltrations and nodule formation with or without cavitation. Five patients were lost in two months (mortality, 71.4 %), two survivors are under follow up. These findings showed, IPA should be thought in the differential diagnosis of pulmonary infections after organ transplantation.


Assuntos
Aspergilose/diagnóstico , Pneumopatias Fúngicas/diagnóstico , Transplante de Órgãos , Adulto , Aspergilose/diagnóstico por imagem , Diagnóstico Diferencial , Feminino , Humanos , Pneumopatias Fúngicas/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Radiografia
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