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1.
J Nucl Cardiol ; 36: 101835, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38403045

RESUMO

Detecting cardiac sarcoidosis; a potentially life-threatening condition is challenging and requires a multimodality imaging approach using echocardiography, PET/CT and CMR. Although 18F-FDG is the recommended PET tracer for evaluating cardiac sarcoidosis, it is limited by physiological cardiac FDG uptake and requires stringent patient preparation/ dietary modifications before imaging. We hereby present a case of cardiac sarcoidosis demonstrating myocardial FAPI uptake on cardiac PET, highlighting the potential role of 68Ga-FAPI PET in the evaluation of cardiac sarcoidosis.


Assuntos
Cardiomiopatias , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Sarcoidose , Humanos , Sarcoidose/diagnóstico por imagem , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada/métodos , Cardiomiopatias/diagnóstico por imagem , Radioisótopos de Gálio , Compostos Radiofarmacêuticos , Pessoa de Meia-Idade , Masculino , Feminino , Quinolinas
2.
Nephrology (Carlton) ; 2024 Mar 21.
Artigo em Inglês | MEDLINE | ID: mdl-38511256

RESUMO

There is evidence to suggest that M-type phospholipase A2 (PLA2R) antibodies activate the mannose-binding lectin (MBL) cascade, resulting in glomerular damage and proteinuria in patients with primary membranous nephropathy (PMN). Furthermore, there are few reports indicating that aberrant MBL activation is associated with endothelial dysfunction and accelerated atherosclerosis. While PMN is a common cause of adult nephrotic syndrome, and patients are at increased risk of cardiovascular disease (CVD), there is a lack of research that explores the factors that contribute to this condition. This study aims to determine the MBL levels in PMN and their relation to the clinical activity and endothelial dysfunction in PMN. The MBL levels of 22 biopsy-confirmed PMN patients were assessed at baseline and after 6 months of immunosuppressive therapy. In order to evaluate endothelial dysfunction in PMN patients, flow-mediated vasodilation (FMD) was measured at baseline and after treatment. A total of 22 healthy controls were included in this study to measure MBL levels and FMD. A significant difference was observed between MBL levels in PMN patients and healthy controls (p < .01). MBL levels decreased significantly after immunosuppressive therapy (p = .04). The baseline MBL levels and FMD levels exhibited a strong correlation (Spearman correlation coefficient [ρ] = 0.51: p = .01). In conclusion, the study signals the activation of the MBL cascade and its association with endothelial dysfunction in PMN patients.

3.
Rheumatology (Oxford) ; 62(2): 815-823, 2023 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-35394488

RESUMO

OBJECTIVE: Precise evaluation of coronary artery abnormalities (CAAs) in Kawasaki disease (KD) is essential. The aim of this study is to determine role of CT coronary angiography (CTCA) for detection of CAAs in distal segments of coronary arteries in patients with KD. METHODS: CTCA findings of KD patients with distal coronary artery involvement were compared with those on transthoracic echocardiography (TTE) during the period 2013-21. RESULTS: Among 176 patients with KD who underwent CTCA (128-Slice Dual Source scanner), 23 (13.06%) had distal CAAs (right coronary-15/23; left anterior descending-14/23; left circumflex-4/23 patients). CTCA identified 60 aneurysms-37 proximal (36 fusiform; 1 saccular) and 23 distal (17 fusiform; 6 saccular); 11 patients with proximal aneurysms had distal contiguous extension; 9 patients showed non-contiguous aneurysms in both proximal and distal segments; 4 patients showed distal segment aneurysms in absence of proximal involvement of same coronary artery; 4 patients had isolated distal CAAs. On TTE, only 40 aneurysms could be identified. Further, distal CAAs could not be identified on TTE. CTCA also identified complications (thrombosis, mural calcification and stenosis) that were missed on TTE. CONCLUSIONS: CAAs can, at times, occur in distal segments in isolation and also in association with, or extension of, proximal CAAs. CTCA demonstrates CAAs in distal segments of coronary arteries, including branches, in a significant number of children with KD-these cannot be detected on TTE. CTCA may therefore be considered as a complimentary imaging modality in children with KD who have CAAs on TTE.


Assuntos
Doença da Artéria Coronariana , Síndrome de Linfonodos Mucocutâneos , Humanos , Criança , Angiografia Coronária/efeitos adversos , Angiografia Coronária/métodos , Vasos Coronários/diagnóstico por imagem , Síndrome de Linfonodos Mucocutâneos/complicações , Síndrome de Linfonodos Mucocutâneos/diagnóstico por imagem , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/etiologia , Angiografia por Tomografia Computadorizada/métodos
4.
J Nucl Cardiol ; 29(2): 558-568, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-32720061

RESUMO

BACKGROUND: 18F-NaF PET/CT identifies high-risk plaques due to active calcification in coronary arteries with potential to characterize plaques in ST-elevation myocardial infarction (MI) and chronic stable angina (CSA) patients. METHODS: Twenty-four MI and 17 CSA patients were evaluated with 18F-NaF PET/CTCA for SUVmax and TBR values of culprit and non-culprit plaques in both groups (inter-group and intra-group comparison), and pre- and post-interventional MI plaques sub-analysis. RESULTS: Culprit plaques in MI patients had significantly higher SUVmax (1.6; IQR 0.6 vs 1.3; IQR 0.3, P = 0.03) and TBR (1.4; IQR 0.6 vs 1.1; IQR 0.4, P = 0.006) than culprit plaques of CSA. Pre-interventional culprit plaques of MI group (n = 11) revealed higher SUVmax (P = 0.007) and TBR (P = 0.008) values than culprit CSA plaques. Culprit plaques showed significantly higher SUVmax (P = 0.006) and TBR (P = 0.0003) than non-culprit plaques in MI group, but without significant difference between culprit and non-culprit plaques in CSA group. With median TBR cutoff value of 1.4 in MI culprit plaques, 6/7 plaques (85.7%) among the event prone non-culprit lesions had TBR values > 1.4 in CSA group. CONCLUSION: The study shows higher SUVmax and TBR values in MI culprit plaques and comparable TBR values for event prone plaques of CSA group in identifying high-risk plaques.


Assuntos
Síndrome Coronariana Aguda , Angina Estável , Doença da Artéria Coronariana , Infarto do Miocárdio , Placa Aterosclerótica , Infarto do Miocárdio com Supradesnível do Segmento ST , Angina Estável/diagnóstico por imagem , Doença da Artéria Coronariana/diagnóstico por imagem , Vasos Coronários , Fluoretos , Radioisótopos de Flúor , Humanos , Infarto do Miocárdio/diagnóstico por imagem , Placa Aterosclerótica/diagnóstico por imagem , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Fluoreto de Sódio
5.
Rheumatol Int ; 42(1): 115-120, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34661711

RESUMO

Arterial involvement, although rare, accounts for significant mortality and morbidity in patients of Behçet's disease (BD). There is paucity of data on arterial BD. The objective of this 5-year retrospective cohort study was to examine the clinical presentation, pattern of arterial involvement, and treatment outcome in Indian arterial BD patients. Data on demography, clinical presentation, radiology, instituted therapy, vascular interventions and treatment outcomes were recorded and analyzed. Ten (16.9%) out of 59 patients with BD had arterial involvement in 13 vascular territories [mean age 30 (8) years, 9 (90%) males]. Pulmonary artery was most commonly involved (46%), followed by abdominal aorta (15%), femoral artery (15%), descending thoracic aorta (8%), common iliac (8%), and dorsalis pedis artery (8%). Two patients had multi-territory involvement. The median interval between disease onset and development of arterial aneurysms was 3 years (3 months-12 years). Concomitant deep vein thrombosis was seen in 60% cases. Prednisolone and cyclophosphamide were the most common immunosuppressive therapy used; one patient who relapsed on cyclophosphamide responded to infliximab. Five surgical or endovascular interventions were performed. Four patients (40%) died due to aneurysm rupture-all had a delayed diagnosis, and three had pulmonary artery involvement, with death due to massive hemoptysis. Based on the present study, we concluded that arterial involvement in BD is seen predominantly in males and has a high mortality. Early detection and aggressive treatment with immunosuppression and surgical or endovascular interventions are essential for good outcomes.


Assuntos
Aneurisma/patologia , Síndrome de Behçet/terapia , Adulto , Aneurisma/diagnóstico por imagem , Aneurisma/etiologia , Síndrome de Behçet/complicações , Colchicina/uso terapêutico , Feminino , Hemoptise/etiologia , Humanos , Índia , Masculino , Estudos Retrospectivos , Moduladores de Tubulina/uso terapêutico
7.
J Card Surg ; 37(2): 455-457, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34751994

RESUMO

BACKGROUND: Absent pulmonary valve (PV) is a rare and severe variant seen in only 3% to 6% of patients with tetralogy of Fallot (TOF). Fetuses with this combined condition who survive through birth typically need intervention in infancy or early childhood because of respiratory distress, heart failure, or failure to thrive. DISCUSSION: Here, we describe the case of a 37 year old gentleman who presented with a diagnosis of TOF with absent PV, hugely dilated right and left pulmonary arteries and an aneurysmal right ventricular outflow. CONCLUSION: TOF with absent PV surviving into adulthood is a rarity. An aneurysmal right ventricular outflow tract in an unrepaired case of TOF has not been described before. Massively dilated left and right pulmonary arteries as in this case can cause significant and even life-threatening airway compromise, thus necessitating early surgical repair.


Assuntos
Atresia Pulmonar , Valva Pulmonar , Tetralogia de Fallot , Adulto , Pré-Escolar , Humanos , Masculino , Artéria Pulmonar , Valva Pulmonar/diagnóstico por imagem , Valva Pulmonar/cirurgia , Tetralogia de Fallot/diagnóstico por imagem , Tetralogia de Fallot/cirurgia
9.
Mycopathologia ; 187(1): 31-37, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34936060

RESUMO

Literature on COVID-19-associated pulmonary mucormycosis (CAPM) is sparse. Pulmonary artery pseudoaneurysm (PAP) is an uncommon complication of pulmonary mucormycosis (PM), and rarely reported in CAPM. Herein, we report five cases of CAPM with PAP managed at our center and perform a systematic review of the literature. We diagnosed PM in those with clinico-radiological suspicion and confirmed it by microbiology or histopathology. We encountered five cases of CAPM with PAP (size ranged from 1 × 0.8 cm to ~ 4.9 × 4.8 cm). All subjects had diabetes and were aged 55-62 years (75% men). In two cases, COVID-19 and mucormycosis were diagnosed simultaneously, while in three others, COVID-19 preceded PM. One subject who underwent surgery survived, while all others died (80% mortality). From our systematic review, we identified one additional case of CAPM with PAP in a transplant recipient. CAPM with PAP is rare with high mortality. Early diagnosis and multimodality management are imperative to improve outcomes.


Assuntos
Falso Aneurisma , COVID-19 , Mucormicose , Falso Aneurisma/diagnóstico , Falso Aneurisma/etiologia , Feminino , Humanos , Masculino , Mucormicose/complicações , Mucormicose/diagnóstico , Artéria Pulmonar/diagnóstico por imagem , SARS-CoV-2
10.
Pol J Radiol ; 87: e296-e303, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35774215

RESUMO

Purpose: Objective of this study was to compare high-pitch prospective electrocardiogram (ECG)-gated computed tomography (CT) pulmonary angiography (HP-PECG-gated CTPA) with standard-pitch non-ECG-gated CT pulmonary angiography (SP-NECG-gated CTPA) on 128-slice dual-source CT (DSCT) for the detection of subsegmental pulmonary embolism (SSPE) in patients suspected of acute pulmonary embolism (APE) with radiation and contrastoptimized protocols. Cardiac-related motion artefacts, lung image quality, and quantitative parameter (pulmonary arterial enhancement, radiation exposure, and contrast) volumes were also compared. Material and methods: This prospective study enrolled 87 patients clinically suspected of APE and randomly distributed to either group by software. Two radiologists blinded to each other interpreted the images for assessment of SSPE, image quality, and quantitative parameters. Results: SSPE was diagnosed in 15/44 (34.09%) patients in HP-PECG-gated CTPA, in comparison to 8/43 (18.60%) patients in SP-NECG-gated CTPA. Cardiac motion-related artefacts (blurring of bronchovascular structures and double-line artefacts) were statistically significantly less, with p-value < 0.05. Lung image quality was also better, with p-value < 0.001. Effective radiation dose and contrast volume in HP-PECG-gated CTPA were (2.54 ± 0.80 mSv, 45.05 ± 6 ml) versus SP-NECG-gated CTPA (3.17 ± 1.20 mSv, 74.19 ± 7.63 ml) with p-values of 0.007 and 0.001, respectively. Conclusions: Radiation and contrast volume-optimized HP-PECG-gated CTPA provides reduced cardiac motion related artefacts of pulmonary arteries, which allows enhanced detection of SSPE. It also provides better image quality of lung and parenchyma with lower radiation exposure and less contrast volume.

11.
Rheumatol Int ; 41(9): 1651-1655, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33904958

RESUMO

The 1990 American College of Rheumatology (ACR) criteria for the classification of polyarteritis nodosa (PAN) have many pitfalls and performed poorly when used for diagnostic purposes. Recently, a provisional seven-item diagnostic criteria for PAN was proposed. To validate the provisional seven-item diagnostic criteria for PAN in a cohort of PAN patients from a tertiary care centre in India. Clinical details of patients diagnosed as PAN as per the European Medicines Agency algorithm between 2005 and 2020 were collected retrospectively. Age and sex-matched anti-neutrophil cytoplasmic antibody (ANCA) associated vasculitis (AAV) patients were included in the non-PAN group. Patients with a deficiency of adenosine deaminase 2 (DADA2) were included as a separate group. The sensitivity, specificity, positive and negative predictive values (PPV and NPV) for ACR criteria, the Ministry of Health, Labour and Welfare (MHLW) in Japan diagnostic criteria and the seven-item diagnostic criteria were calculated. Thirty-seven PAN, 14 DADA2 and 37 AAV patients were included in the analysis. The sensitivity, specificity, PPV and NPV of the seven-item criteria were 83.7%, 96.8%, 97.3% and 81.1% respectively. For the ACR criteria, sensitivity was 82.9% and specificity was 79.5%. The sensitivity, specificity for MHLW criteria were 77.3% and 90% respectively. The sensitivity and specificity of seven-item criteria for DADA2 patients were 58.8% and 88.2% respectively. There was very poor agreement between the ACR criteria and the seven-item and MHLW criteria and fair agreement between seven-item and MHLW criteria (κ = 0.279). The provisional seven-item criteria for PAN performed well with high specificity and PPV.


Assuntos
Poliarterite Nodosa/diagnóstico , Adolescente , Adulto , Anticorpos Anticitoplasma de Neutrófilos/sangue , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Poliarterite Nodosa/classificação , Estudos Retrospectivos , Sensibilidade e Especificidade , Adulto Jovem
12.
Cardiol Young ; 31(6): 998-1002, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33504398

RESUMO

OBJECTIVE: To evaluate whether Kawasaki disease predisposes to premature atherosclerosis and to assess status of coronary artery abnormalities at least 10 years after diagnosis. MATERIAL AND METHODS: A prospective study was carried out on 21 patients who were diagnosed with Kawasaki disease at least 10 years back and are on regular follow-up. The study was conducted on 128 Slice Dual Source computed tomography scanner with electrocardiography-triggered radiation optimised protocols for assessment of coronary artery abnormalities and calcifications. RESULTS: Study cohort had 21 subjects - 15 males and 6 females (age range: 11-23 years; mean: 15.76 + 3.72 years). Mean age at time of diagnosis was 3.21 + 2.48 years. Mean time interval from diagnosis of Kawasaki disease to computed tomography coronary angiography was 12.59 + 2.89 years. Four children had evidence of coronary artery abnormalities on transthoracic echocardiography at time of diagnosis. Of these, two had persistent abnormalities on computed tomography coronary angiography. One subject (4.76%) had coronary calcification that was localised to abnormal coronary artery segment. Four coronary artery abnormalities (one saccular; three fusiform aneurysms) were noted in two subjects. CONCLUSION: Prevalence of coronary artery calcification is low and, if present, is localised to abnormal segments. This calcification is likely dystrophic rather than atherosclerotic. It appears that coronary artery abnormalities can persist for several years after acute episode of Kawasaki disease. Periodic follow-up by computed tomography coronary angiography is now a feasible non-invasive imaging modality for long term surveillance of patients with Kawasaki disease who had coronary artery abnormalities at time of diagnosis.


Assuntos
Síndrome de Linfonodos Mucocutâneos , Adolescente , Adulto , Criança , Angiografia Coronária , Vasos Coronários/diagnóstico por imagem , Feminino , Humanos , Masculino , Síndrome de Linfonodos Mucocutâneos/complicações , Síndrome de Linfonodos Mucocutâneos/diagnóstico por imagem , Síndrome de Linfonodos Mucocutâneos/epidemiologia , Estudos Prospectivos , Tomografia Computadorizada por Raios X , Adulto Jovem
13.
J Clin Rheumatol ; 27(4): 143-149, 2021 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-31895109

RESUMO

OBJECTIVE: The aim of this study was to assess endothelial dysfunction in acute and convalescent phases of Kawasaki disease (KD) using automated edge detection software. METHODS: This was a case-control study to assess the flow-mediated dilatation (FMD) of brachial artery (BA) in patients with KD during acute phase and at least 3 months after diagnosis. A 10-MHz multifrequency linear array probe attached to a high-resolution ultrasound machine (PHILIPS Medical System-IU22) was used to acquire the images. Automated edge detection software was used to assess BA diameter. RESULTS: A total of 16 children with KD and 16 healthy children were enrolled in the study. Mean ± SD maximum BA diameter was found to be significantly low during the acute stage of KD (2.56 ± 0.36 mm) as compared with the convalescence phase (2.93 mm ± 0.31) and in healthy controls (2.95 mm ± 0.56). The mean ± SD percentage change in the FMD was found to be significantly low in the acute phase of KD (12.32 ± 6.2) as compared with the convalescence phase of KD (17.99 ± 8.13) and healthy controls (26.88 ± 12.76). The mean ± SD percentage change in the FMD was also found to be significantly low in the convalescence phase of KD as compared with healthy controls. CONCLUSIONS: The FMD of the BA is significantly reduced in patients during the acute and convalescence phase of KD as compared with normal healthy children. The endothelial dysfunction was present even in patients who had no obvious coronary artery abnormalities during the acute stage.


Assuntos
Síndrome de Linfonodos Mucocutâneos , Estudos de Casos e Controles , Criança , Endotélio Vascular , Humanos , Índia , Síndrome de Linfonodos Mucocutâneos/diagnóstico , Software
14.
Ann Hematol ; 99(9): 2019-2026, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32676731

RESUMO

Hyperbilirubinemia and pigment gallstones are frequent complications in transfusion-dependent ß-thalassemia (TDßT) patients. Bilirubin production and clearance are determined by genetic as well as environmental variables like ineffective erythropoiesis, hemolysis, infection-induced hepatic injury, and drug- or iron-related toxicities. We studied the frequency of the Gilbert syndrome (GS), a common hereditary cause of hyperbilirubinemia in 102 TDßT patients aged 13-43 years (median 26 years). Total and unconjugated hyperbilirubinemia were frequent (81.4% and 84.3% patients respectively). Twenty (19.6%) patients showed total bilirubin > 3.0 mg/dL; 53 (51.9%) had an elevation of either alanine or aspartate aminotransferase, or alkaline phosphatase liver enzymes. Nineteen (18.6% of the 92 tested) were positive for hepatitis B or C, or HIV. The mean total and unconjugated bilirubin levels and AST, ALT, and ALP levels in patients positive for hepatitis B or C were not significantly different from negative cases. Eighteen patients (17.7%) had GS: homozygous (TA)7/7 UGT1A1 promoter motif (the *28/*28 genotype), 48 (47.1%) were heterozygous (TA)6/7. Total + unconjugated bilirubin rose significantly with the (TA)7 allele dose. Fourteen (13.7%) patients had gallstones. There was no significant difference in total/unconjugated bilirubin in patients with/without gallstones and no significant differences in frequencies of gallstones within the three UGT1A1 genotypes. This largest study in Indian TDßT patients suggests that GS should be excluded in TDßT cases where jaundice remains unexplained after treatable causes like infections, chelator toxicity, or transfusion-related hemolysis are excluded. GS was not associated with gallstones, possibly due to a lower incidence of cholelithiasis overall, a younger age cohort, or other environmental factors.


Assuntos
Povo Asiático , Colelitíase/epidemiologia , Doença de Gilbert/epidemiologia , Glucuronosiltransferase , Hiperbilirrubinemia/epidemiologia , Talassemia beta/epidemiologia , Adolescente , Adulto , Povo Asiático/genética , Transfusão de Sangue/tendências , Colelitíase/genética , Feminino , Doença de Gilbert/genética , Glucuronosiltransferase/genética , Humanos , Hiperbilirrubinemia/genética , Índia/epidemiologia , Masculino , Estudos Prospectivos , Adulto Jovem , Talassemia beta/genética , Talassemia beta/terapia
15.
Minim Invasive Ther Allied Technol ; 29(3): 170-176, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31012767

RESUMO

Aim: To evaluate the feasibility and outcome of percutaneous glue embolisation as primary treatment for pseudoaneurysms in selective patients.Material and methods: A review of the pseudoaneurysm cases managed with percutaneous glue at our institute was analyzed in this study. A total of 21 patients over a period of last one year who were treated for pseudoaneurysm at varied sites primarily with percutaneous n-butyl cynoacrylate were retrospectively evaluated. Site of pseudoaneurysm was Pulmonary (seven cases), renal (four cases), pelvic (4four cases) and miscellaneous abdomen (six cases). Combined ultrasound and fluoroscopy approach was used in 17 cases, CT guidance in three cases and combined ultrasound and CT guidance in one case. Patients were evaluated for therapeutic response (radiological and clinical) and procedure related complications.Results: Complete occlusion of the pseudoaneurysm was seen in all patients. Two patients showed mild pneumothorax and one patient showed reflux into the intercostal artery. All the patients showed symptomatic improvement and discharged in stable condition.Conclusions: Percutaneous glue embolisation of the pseudoaneurysms as a primary treatment is feasible and can be safely carried out in select group of patients with good therapeutic response and minimal complications.


Assuntos
Adesivos/uso terapêutico , Falso Aneurisma/cirurgia , Cianoacrilatos/uso terapêutico , Embolização Terapêutica/métodos , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Abdome/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Rim/cirurgia , Pulmão/cirurgia , Masculino , Pessoa de Meia-Idade , Diafragma da Pelve/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
16.
Pol J Radiol ; 85: e328-e339, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32685069

RESUMO

PURPOSE: To describe non-bronchial causes of haemoptysis on imaging and the role of interventional radiology in their management from cases of haemoptysis archived from our database at a tertiary care, federally funded institution. MATERIAL AND METHODS: Retrospective analysis of cases that presented with haemoptysis in our institution from 2008 to 2013 was done, and details of cases in which the bleeding was from a non-bronchial source were archived and details of imaging and treatment were recorded. RESULTS: Retrospective analysis of patients presenting with haemoptysis yielded 24 (n = 24) patients having haemoptysis from non-bronchial sources. Causes of haemoptysis were: Rasmussen aneurysms (n = 12/24), costocervical trunk pseudoaneurysm (n = 1/24), left internal mammillary artery pseudoaneurysm (n = 1/24), left ventricular aneurysms (n = 3/24), pulmonary arteriovenous malformations (AVMs) (n = 5/24), and proximal interruption of pulmonary artery (n = 2/24). Imaging and interventional radiology management are described in detail. CONCLUSIONS: Haemoptysis can be from non-bronchial sources, which may be either from systemic or pulmonary arteries or cardio-pulmonary fistulas. Bronchial computed tomography angiography (CTBA), if feasible, must always be considered before bronchial artery embolisation because it precisely identifies the source of haemorrhage and vascular anatomy that helps the interventional radiologist in pre-procedural planning. This circumvents chances of re-bleed if standard bronchial artery embolisation is done without CTBA.

17.
Radiographics ; 39(1): 62-77, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30526331

RESUMO

Encapsulating peritoneal sclerosis (EPS) is a rare but serious condition that results in (a) encapsulation of bowel within a thickened fibrocollagenous peritoneal membrane and (b) recurrent episodes of bowel obstruction. Although described by various names in the literature, the preferred term is encapsulating peritoneal sclerosis because it best describes the morphologic and histologic changes in this disorder. The etiology of EPS is multifactorial, with a wide variety of implicated predisposing factors that disrupt the normal physiologic function of the peritoneal membrane-prime among these factors being long-term peritoneal dialysis and bacterial peritoneal infections, especially tuberculosis. The clinical features of EPS are usually nonspecific, and knowledge of the radiologic features is necessary to make a specific diagnosis. The findings on radiographs are usually normal. Images from small-bowel follow-through studies show the bowel loops conglomerated in a concertina-like fashion with a serpentine arrangement in a fixed U-shaped configuration. US demonstrates a "cauliflower" appearance of bowel with a narrow base, as well as a "trilaminar" appearance depicted especially with use of high-resolution US probes. CT is the imaging modality of choice and allows identification of the thickened contrast material-enhanced abnormal peritoneal membrane and the encapsulated clumped bowel loops. In addition, CT can potentially help identify the cause of EPS (omental granuloma in tuberculosis), as well as the complications of EPS (bowel obstruction). Conservative medical treatment and surgical therapy early in the course of EPS have been used for management of the condition. The purpose of this article is to review the nomenclature and etiopathogenesis of EPS, describe the multimodality imaging appearances of EPS, including differentiating its features from those of other conditions mimicking EPS, and give an overview of management options. Online DICOM image stacks are available for this article. ©RSNA, 2018.


Assuntos
Intestinos/diagnóstico por imagem , Fibrose Peritoneal/diagnóstico por imagem , Peritônio/diagnóstico por imagem , Radiografia , Radioisótopos de Bário , Diagnóstico Diferencial , Humanos , Obstrução Intestinal/diagnóstico por imagem , Obstrução Intestinal/etiologia , Imageamento por Ressonância Magnética , Diálise Peritoneal/efeitos adversos , Fibrose Peritoneal/etiologia , Fibrose Peritoneal/terapia , Peritônio/patologia , Prognóstico , Tomografia Computadorizada por Raios X
19.
J Am Soc Nephrol ; 28(10): 3100-3108, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28667080

RESUMO

Vitamin D deficiency associates with mortality in patients with CKD, and vitamin D supplementation might mitigate cardiovascular disease risk in CKD. In this randomized, double-blind, placebo-controlled trial, we investigated the effect of cholecalciferol supplementation on vascular function in 120 patients of either sex, aged 18-70 years, with nondiabetic CKD stage 3-4 and vitamin D deficiency (serum 25-hydroxyvitamin D ≤20 ng/ml). We randomized patients using a 1:1 ratio to receive either two directly observed oral doses of cholecalciferol (300,000 IU) or matching placebo at baseline and 8 weeks. The primary outcome was change in endothelium-dependent brachial artery flow-mediated dilation at 16 weeks. Secondary outcome measures included changes in pulse wave velocity and circulating biomarkers. Cholecalciferol supplementation significantly increased endothelium-dependent brachial artery flow-mediated dilation at 16 weeks, whereas placebo did not (between-group difference in mean change: 5.49%; 95% confidence interval, 4.34% to 6.64%; P<0.001). Intervention also led to significant favorable changes in pulse wave velocity and circulating IL-6 levels. Thus, in nondiabetic patients with stage 3-4 CKD and vitamin D deficiency, vitamin D supplementation may improve vascular function. This study is registered with the Clinical Trials Registry of India (no.: CTRI/2013/05/003648).


Assuntos
Doenças Cardiovasculares/prevenção & controle , Insuficiência Renal Crônica/complicações , Vasodilatação/efeitos dos fármacos , Vitamina D/uso terapêutico , Vitaminas/uso terapêutico , Adulto , Biomarcadores/sangue , Proteína C-Reativa/metabolismo , Doenças Cardiovasculares/sangue , Doenças Cardiovasculares/complicações , Suplementos Nutricionais , Endotélio Vascular/efeitos dos fármacos , Feminino , Humanos , Interleucina-6/sangue , Masculino , Pessoa de Meia-Idade , Análise de Onda de Pulso , Insuficiência Renal Crônica/sangue , Rigidez Vascular/efeitos dos fármacos , Vitamina D/farmacologia , Vitaminas/farmacologia
20.
Neurol India ; 66(4): 1067-1074, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30038096

RESUMO

BACKGROUND: Pseudoaneurysms (PSAs) of the internal carotid artery (ICA) are uncommon lesions. Various surgical and endovascular options are available for the management of these lesions. We describe our experience in using a spectrum of endovascular management strategies for ICA-PSA and present their outcome. AIMS: To evaluate the role and efficacy of endovascular intervention in the management of ICA PSA. MATERIALS AND METHODS: The clinical and angiographic data of 20 ICA PSAs from January 2008 till July 2016 were reviewed retrospectively. A meticulous evaluation of all the patients regarding their clinical symptoms, imaging findings (Ultrasound Doppler/CTA/MRI) and the endovascular techniques was performed. Clinical and imaging follow up for at least 1 year was also assessed. RESULTS: There were 15 (75%) male and 5 (25%) female patients, with their age ranging from 11 months to 60 years. Eleven patients (55%) were of the paediatric age group. PSAs were seen in the cervical ICA in 12 patients (60%) and in the intracranial ICA in 8 patients (40%). The most common causes of PS formation were iatrogenic (n = 8), followed by trauma (n = 7), and infection (n = 5). Parent artery occlusion was performed in 10 patients (50%), stenting in 7 patients (35%), and PSA coiling in 3 patients (15%). Immediate and complete obliteration of the PSAs was achieved in all cases without any major procedural complication. Recurrence was diagnosed at 2 years, in one patient who had undergone parent artery occlusion. This was successfully retreated. None of our patients had immediate or delayed major neurological deficits. CONCLUSIONS: Endovascular treatment provides a safe and minimally invasive management option in patients with ICA PSA. It helps in the prevention of rupture of the PS and also its thromboembolic complications.


Assuntos
Lesões das Artérias Carótidas/cirurgia , Procedimentos Endovasculares/métodos , Adolescente , Adulto , Artéria Carótida Interna/patologia , Artéria Carótida Interna/cirurgia , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
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