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Role of Chest Imaging in Viral Lung Diseases. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18126434. [PMID: 34198575 PMCID: PMC8296238 DOI: 10.3390/ijerph18126434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/11/2021] [Accepted: 06/12/2021] [Indexed: 12/24/2022]
Abstract
The infection caused by novel beta-coronavirus (SARS-CoV-2) was officially declared a pandemic by the World Health Organization in March 2020. However, in the last 20 years, this has not been the only viral infection to cause respiratory tract infections leading to hundreds of thousands of deaths worldwide, referring in particular to severe acute respiratory syndrome (SARS), influenza H1N1 and Middle East respiratory syndrome (MERS). Although in this pandemic period SARS-CoV-2 infection should be the first diagnosis to exclude, many other viruses can cause pulmonary manifestations and have to be recognized. Through the description of the main radiological patterns, radiologists can suggest the diagnosis of viral pneumonia, also combining information from clinical and laboratory data.
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Ground-glass opacity (GGO): a review of the differential diagnosis in the era of COVID-19. Jpn J Radiol 2021; 39:721-732. [PMID: 33900542 PMCID: PMC8071755 DOI: 10.1007/s11604-021-01120-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 04/07/2021] [Indexed: 02/06/2023]
Abstract
Thoracic imaging is fundamental in the diagnostic route of Coronavirus disease 2019 (COVID-19) especially in patients admitted to hospitals. In particular, chest computed tomography (CT) has a key role in identifying the typical features of the infection. Ground-glass opacities (GGO) are one of the main CT findings, but their presence is not specific for this viral pneumonia. In fact, GGO is a radiological sign of different pathologies with both acute and subacute/chronic clinical manifestations. In the evaluation of a subject with focal or diffuse GGO, the radiologist has to know the patient’s medical history to obtain a valid diagnostic hypothesis. The authors describe the various CT appearance of GGO, related to the onset of symptoms, focusing also on the ancillary signs that can help radiologist to obtain a correct and prompt diagnosis.
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El Majzoub I, Cheaito RA, Cheaito MA, Bazarbachi A, Sweidan K, Sarieddine A, Al Chami F, Tamim H, El Cheikh J. Clinical characteristics and outcomes of bone marrow transplantation patients presenting to the ED of a tertiary care center. Am J Emerg Med 2020; 46:295-302. [PMID: 33046319 DOI: 10.1016/j.ajem.2020.07.085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/29/2020] [Accepted: 07/29/2020] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Bone marrow transplantation is a breakthrough in the world of hematology and oncology. In our region, there is scarce literature studying emergency department visits among BMT patients, as well as their predictors of mortality. OBJECTIVES This study aimed to assess the frequency, reasons, clinical characteristics and outcomes of patients presenting to the ED after a BMT, and to study the predictors of mortality in those patients. This study also compares those variables among the different types of BMT. METHODS This was a retrospective cohort study conducted on all adult patients who have completed a successful BMT and visited the ED. RESULTS Our study included 115 BMT patients, of whom 17.4% died. Those who died had a higher median number of ED visits than those who did not die. Around 36.5% presented with fever/chills with 29.6% diagnosed with pneumonia on discharge. We found that the odds of mortality were significantly higher among those who presented with dyspnea (p < .0005) and AMS (p = .023), among septic patients (p = .001), those who have undergone allogeneic BMT (p = .037), and those who were admitted to the ICU (p = .002). Moreover, the odds of mortality were significantly higher among hypotensive (p ≤0005) and tachycardic patients (p = .015). CONCLUSION In our study, we have shown that BMT patients visit the ED very frequently and have high risk of in-hospital mortality. Moreover, our study showed a significant association between mortality and patients with dyspnea, AMS, sepsis, allogeneic BMT type, ICU admission, hypotension and tachycardia.
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Affiliation(s)
- Imad El Majzoub
- Department of Emergency Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
| | - Rola A Cheaito
- Department of Emergency Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
| | - Mohamad Ali Cheaito
- Department of Emergency Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
| | - Ali Bazarbachi
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
| | - Kinda Sweidan
- Department of Emergency Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
| | - Aseel Sarieddine
- Department of Emergency Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
| | - Farouk Al Chami
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
| | - Hani Tamim
- Department of Internal Medicine, Clinical Research Institute, American University of Beirut Medical Center, Beirut, Lebanon.
| | - Jean El Cheikh
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
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Wieruszewski PM, Herasevich S, Gajic O, Yadav H. Respiratory failure in the hematopoietic stem cell transplant recipient. World J Crit Care Med 2018; 7:62-72. [PMID: 30370228 PMCID: PMC6201323 DOI: 10.5492/wjccm.v7.i5.62] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/04/2018] [Accepted: 10/10/2018] [Indexed: 02/06/2023] Open
Abstract
The number of patients receiving hematopoietic stem cell transplantation (HSCT) is rapidly rising worldwide. Despite substantial improvements in peri-transplant care, pulmonary complications resulting in respiratory failure remain a major contributor to morbidity and mortality in the post-transplant period, and represent a major barrier to the overall success of HSCT. Infectious complications include pneumonia due to bacteria, viruses, and fungi, and most commonly occur during neutropenia in the early post-transplant period. Non-infectious complications include idiopathic pneumonia syndrome, peri-engraftment respiratory distress syndrome, diffuse alveolar hemorrhage, pulmonary veno-occlusive disease, delayed pulmonary toxicity syndrome, cryptogenic organizing pneumonia, bronchiolitis obliterans syndrome, and post-transplant lymphoproliferative disorder. These complications have distinct clinical features and risk factors, occur at differing times following transplant, and contribute to morbidity and mortality.
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Affiliation(s)
- Patrick M Wieruszewski
- Department of Pharmacy, Mayo Clinic, Rochester, MN 55905, United States
- Multidisciplinary Epidemiology and Translational Research in Intensive Care Group, Mayo Clinic, Rochester, MN 55905, United States
| | - Svetlana Herasevich
- Multidisciplinary Epidemiology and Translational Research in Intensive Care Group, Mayo Clinic, Rochester, MN 55905, United States
- Department of Anesthesiology, Mayo Clinic, Rochester, MN 55905, United States
| | - Ognjen Gajic
- Multidisciplinary Epidemiology and Translational Research in Intensive Care Group, Mayo Clinic, Rochester, MN 55905, United States
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN 55905, United States
| | - Hemang Yadav
- Multidisciplinary Epidemiology and Translational Research in Intensive Care Group, Mayo Clinic, Rochester, MN 55905, United States
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN 55905, United States
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Wohlfarth P, Turki AT, Steinmann J, Fiedler M, Steckel NK, Beelen DW, Liebregts T. Microbiologic Diagnostic Workup of Acute Respiratory Failure with Pulmonary Infiltrates after Allogeneic Hematopoietic Stem Cell Transplantation: Findings in the Era of Molecular- and Biomarker-Based Assays. Biol Blood Marrow Transplant 2018; 24:1707-1714. [PMID: 29550627 PMCID: PMC7110883 DOI: 10.1016/j.bbmt.2018.03.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Accepted: 03/06/2018] [Indexed: 12/12/2022]
Abstract
Allogeneic hematopoietic stem cell transplantation (HSCT) recipients frequently develop acute respiratory failure (ARF) with pulmonary infiltrates. Molecular- and biomarker-based assays enhance pathogen detection, but data on their yield in this population are scarce. This was a retrospective single-center study of 156 consecutive HSCT recipients admitted to the intensive care unit (ICU) between May 2013 and July 2017. Findings from a microbiologic diagnostic workup using currently available methods on bronchoalveolar lavage (BAL) and blood samples from 66 patients (age, 58 years [range, 45 to 64]; HSCT to ICU, 176 days [range, 85 to 407]) with ARF and pulmonary infiltrates were analyzed. In 47 patients (71%) a causative pathogen was identified (fungal, n = 28; viral, n = 26; bacterial, n = 18). Polymicrobial findings involving several pathogen groups occurred in 20 patients (30%). Culture (12/16, 75%), galactomannan (13/15, 87%), and Aspergillus-PCR (8/9, 89%) from BAL but not serum galactomannan (6/14, 43%) helped to diagnose invasive aspergillosis (n = 16, 24%). Aspergillus-PCR detected azole resistance in 2 cases. Mucorales was found in 7 patients (11%; BAL culture, n = 6; Mucorales-PCR, n = 1). Patients with identified pathogens had higher Simplified Acute Physiology Score II scores (P = .049) and inferior ICU survival (6% versus 37%, P < .01), which largely related to the presence of an invasive fungal infection. Eight patients (12%) had 1 or more viruses with uncertain lung pathogenicity as the sole microbiologic finding. A diagnostic microbiologic workup incorporating molecular- and biomarker-based assays identified pathogens in most HSCT recipients with ARF and pulmonary infiltrates admitted to the ICU. Implications of polymicrobial infection and pathogen patterns in these patients warrant further investigation.
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Affiliation(s)
- Philipp Wohlfarth
- Department of Bone Marrow Transplantation, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, Essen, Germany; Division of Blood and Marrow Transplantation, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Amin T Turki
- Department of Bone Marrow Transplantation, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, Essen, Germany
| | - Joerg Steinmann
- Institute of Medical Microbiology, University of Duisburg-Essen, University Hospital Essen, Essen, Germany; Institute of Clinical Hygiene, Medical Microbiology and Infectiology, Paracelsus Medical University, Nuremberg, Germany
| | - Melanie Fiedler
- Institute of Virology, University of Duisburg-Essen, Essen, Germany
| | - Nina K Steckel
- Department of Bone Marrow Transplantation, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, Essen, Germany
| | - Dietrich W Beelen
- Department of Bone Marrow Transplantation, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, Essen, Germany
| | - Tobias Liebregts
- Department of Bone Marrow Transplantation, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, Essen, Germany.
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Choi YH, Jeong HJ, An HY, Kim YS, Lee EJ, Lee B, Kang HJ, Shin HY, Park JD. Early predictors of mortality in children with pulmonary complications after haematopoietic stem cell transplantation. Pediatr Transplant 2017; 21:e13062. [PMID: 29027353 PMCID: PMC7167723 DOI: 10.1111/petr.13062] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/17/2017] [Indexed: 12/21/2022]
Abstract
PC are a main cause of death following HSCT in children. We aimed to evaluate early predictors of mortality in paediatric recipients with PCs. A retrospective observational study of 35 patients with 49 episodes of PI on chest radiography (of 124 patients) who had undergone HSCT at a tertiary university hospital between January 2011 and December 2012 was performed. During follow-up (median 26.1 months), 15 episodes led to death (30.6%). An aetiologic diagnosis was made by non-invasive tests in 24 episodes (49.0%) and by adding bronchoalveolar lavage and/or lung biopsy in 7 episodes with diagnostic yield (77.8%, P = .001). Thus, a specific diagnosis was obtained in 63.3% of the episodes. Aetiology identification and treatment modification after diagnosis did not decrease mortality (P = .057, P = .481). However, the number of organ dysfunctions at the beginning of PI was higher in the mortality group, compared to the survivor group (1.7 ± 1.2 vs 0.32 ± 0.59; P = .001). Hepatic dysfunction (OR, 11.145; 95% CI, 1.23 to 101.29; P = .032) and neutropaenia (OR, 10.558; 95% CI, 1.07 to 104.65; P = .044) were independently associated with risk of mortality. Therefore, hepatic dysfunction and neutropaenia are independent early predictors of mortality in HSCT recipients with PCs.
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Affiliation(s)
- Yu Hyeon Choi
- Department of PediatricsSeoul National University HospitalSeoul National University College of MedicineSeoulKorea
| | - Hyung Joo Jeong
- Department of PediatricsSeoul National University HospitalSeoul National University College of MedicineSeoulKorea
| | - Hong Yul An
- Department of PediatricsSeoul National University HospitalSeoul National University College of MedicineSeoulKorea
| | - You Sun Kim
- Department of PediatricsSeoul National University HospitalSeoul National University College of MedicineSeoulKorea
| | - Eui Jun Lee
- Department of PediatricsSeoul National University HospitalSeoul National University College of MedicineSeoulKorea
| | - Bongjin Lee
- Department of PediatricsSeoul National University HospitalSeoul National University College of MedicineSeoulKorea
| | - Hyoung Jin Kang
- Department of PediatricsCancer Research InstituteSeoul National University College of MedicineSeoulKorea
| | - Hee Young Shin
- Department of PediatricsCancer Research InstituteSeoul National University College of MedicineSeoulKorea
| | - June Dong Park
- Department of PediatricsSeoul National University HospitalSeoul National University College of MedicineSeoulKorea
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Radnay ZB, Udvardy M, Papp M, Hársfalvi J, Rejto L, Pál I, Illés Á, Kiss A. Evaluation of Mannose-Binding Lectin is a Useful Approach to Predict the Risk of Infectious Complications Following Autologous Hematopoietic Stem Cell Transplantation. Transplant Proc 2017; 48:3397-3405. [PMID: 27931588 DOI: 10.1016/j.transproceed.2016.08.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 07/27/2016] [Accepted: 08/22/2016] [Indexed: 01/03/2023]
Abstract
Hematopoietic stem cell transplantation (HSCT) associated immunocompromised state carries high risk of infectious complications. Mannose-binding lectin (MBL) is an acute phase protein involved in innate immune response. Serum MBL level is genetically determined and quite stable. According to literature, significant association was shown between low MBL concentrations and serious infections. The association between serum MBL level and frequency and severity of infections was studied in 186 patients following autologous HSCT. Double-monoclonal antibody sandwich enzyme-linked immunosorbent assay was used to determine MBL antigen level in sera. MBL levels were measured around 100 days following transplantation, in a period without active infection. Twenty-one patients (11%) were MBL deficient. The median time of first infection and number of infections during the first year post-transplantation were not significantly different between patients with MBL deficiency and those without MBL deficiency. The occurrence and number of infections after HSCT correlated with the MBL/C-reactive protein ratio. The number of severe infections was not higher among those with MBL deficiency. The occurrence of infections after the pre-engraftment period during the first year post-transplantation was significantly different in patient groups separated by MBL cut-off level. The MBL/C-reactive protein ratio might be a useful marker of infectious complications. MBL measurement may be helpful in antibiotic treatment. In case of MBL deficiency, earlier and more intensive treatment may be indicated.
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Affiliation(s)
- Z B Radnay
- Department of Hematology, Institute for Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
| | - M Udvardy
- Department of Hematology, Institute for Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - M Papp
- Department of Gastroenterology, Institute for Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - J Hársfalvi
- Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary; Clinical Research Center, Faculty of Medicine, University of Debrecen, Hungary
| | - L Rejto
- Department of Hematology, Institute for Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - I Pál
- Department of Hematology, Institute for Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Á Illés
- Department of Hematology, Institute for Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - A Kiss
- Department of Hematology, Institute for Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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Dwivedi A, Kumar RR, Sharma A, Pannu SK. Role of HRCT Chest in Post Stem Cell Transplant Recipients Suspected of Pulmonary Complications. J Clin Diagn Res 2017; 10:TC18-TC23. [PMID: 28050475 DOI: 10.7860/jcdr/2016/24387.8885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Accepted: 10/19/2016] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Stem cell transplantation is today's procedure of choice for management of various hematopoietic malignant and severe immunogenic disorders. High Resolution Computed Tomography (HRCT) is a common technique for the diagnosis of pulmonary complications in stem cell transplant recipients. There are a large number of complications which can complicate the post-transplant period. AIM To study the role of HRCT chest in stem cell transplant patients developing pulmonary complications, detect any evidence of infection, detect clinical signs of lung infections, Graft versus Host Disease (GvHD) or other regimen related toxicities outlined earlier, detect any evidence of GvHD and correlate these clinical signs with radiological changes in the lungs. MATERIALS AND METHODS The study was a prospective study of 52 participants with indication of stem cell transplantation. The study included recipients of HSCT transplant and the exclusion criteria was patients who failed for engraftment and having an associated history of pulmonary embolism. Patients were screened for pre-transplant chemotherapy, clinical examination, laboratory investigations including blood and biochemical examinations, imaging by ultrasound, chest radiography, baseline HRCT and a follow-up for post-transplant infections and complications with 16 slice Siemens CT scan. Statistical analysis was done using Pearson's chi-squared test. RESULTS Four patients among the total 56 were excluded due to non-engraftment. The most common associated findings in decreasing order are (these patients died): consolidation, pancytopenia and gastrointestinal tract symptoms with VOD (Veno-Occlusive Disease). These findings were seen on HRCT as consolidation, cavities, ground glass opacities, fibrotic changes, bronchiectatic changes and tree in bud appearance. CONCLUSION The study highlights the significant positive findings on the HRCT which were missed on routine chest radiograph and can be used for early diagnoses. Thus, HRCT helped in decreasing the mortality. The abnormal vitals and TLC counts showed a significant relation between the numbers of death in the study.
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Affiliation(s)
- Abhishek Dwivedi
- Graded Specialist, Radiology, Department of Radiodiagnosis, Army Hospital (Research and Referral) , New Delhi, India
| | - R Ravi Kumar
- Professor and Head of Department, Department of Diagnostic and Interventional Radiology, Armed Forces Medical College , Pune, Maharashtra India
| | - Ajay Sharma
- Professor and Head of Department, Department of Haematology and Stem Cell Transplant, Army Hospital (Research and Referral) , New Delhi, India
| | - S K Pannu
- Graded Specialist Radiology, Department of Radiodiagnosis, Army Hospital (Research and Referral) , New Delhi, India
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Fee-Mulhearn A, Nana-Sinkam P. Acute Pulmonary Manifestations of Hematologic Malignancies. Respir Med 2017. [DOI: 10.1007/978-3-319-41912-1_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Sodhi KS, Khandelwal N, Saxena AK, Bhatia A, Bansal D, Trehan A, Singh M, Agarwal R. Rapid lung MRI - paradigm shift in evaluation of febrile neutropenia in children with leukemia: a pilot study. Leuk Lymphoma 2016; 57:70-5. [PMID: 25907426 DOI: 10.3109/10428194.2015.1041389] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Immunocompromised children with hematological malignancies are at increased risk of developing potentially fatal pulmonary infections. Early detection and prompt treatment is critical to combat morbidity and mortality in these children. Twenty-six children with leukemia (age range: 5-13years) presenting with fever and neutropenia were included in this prospective study, which was approved by the institutional ethics committee. All patients underwent HRCT and MRI of the chest on the same day. The findings of HRCT and MRI were compared, with HRCT as the standard of reference. There was perfect agreement between MRI and CT examinations findings by kappa test (κ = 1). No significant difference was observed between the two modalities by the McNemar test (p > 0.05). Rapid lung MRI is technically feasible; has a high correlation, sensitivity and specificity to CT scan; and can emerge as the first line modality for the detection of pulmonary nodules in children with leukemia and persistent febrile neutropenia.
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Affiliation(s)
- Kushaljit Singh Sodhi
- a Department of Radio Diagnosis and Imaging , Post Graduate Institute of Medical Education and Research , Chandigarh , India
| | - Niranjan Khandelwal
- a Department of Radio Diagnosis and Imaging , Post Graduate Institute of Medical Education and Research , Chandigarh , India
| | - Akshay Kumar Saxena
- a Department of Radio Diagnosis and Imaging , Post Graduate Institute of Medical Education and Research , Chandigarh , India
| | - Anmol Bhatia
- a Department of Radio Diagnosis and Imaging , Post Graduate Institute of Medical Education and Research , Chandigarh , India
| | - Deepak Bansal
- b Department of Paediatrics , Post Graduate Institute of Medical Education and Research , Chandigarh , India
| | - Amita Trehan
- b Department of Paediatrics , Post Graduate Institute of Medical Education and Research , Chandigarh , India
| | - Meenu Singh
- b Department of Paediatrics , Post Graduate Institute of Medical Education and Research , Chandigarh , India
| | - Ritesh Agarwal
- c Department of Pulmonary Medicine , Post Graduate Institute of Medical Education and Research , Chandigarh , India
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Diab M, ZazaDitYafawi J, Soubani AO. Major Pulmonary Complications After Hematopoietic Stem Cell Transplant. EXP CLIN TRANSPLANT 2016; 14:259-70. [PMID: 27040986 DOI: 10.6002/ect.2015.0275] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Both autologous and allogeneic hematopoietic stem cell transplants are important therapeutic options for several benign and malignant disorders. Pulmonary complications, although they have become less frequent, remain a significant cause of morbidity and mortality after hematopoietic stem cell transplant. These complications range from bacterial, fungal, and viral pulmonary infections to noninfectious conditions such as diffuse alveolar hemorrhage and idiopathic pneumonia syndrome. Bronchiolitis obliterans syndrome is the primary chronic pulmonary complication, and treatment of this condition remains challenging. This report highlights the advances in the diagnosis and management of the major pulmonary complications after hematopoietic stem cell transplant. It also underscores the need for prospective and multicenter research to have a better understanding of the mechanisms behind these complications and to obtain more effective diagnostic tool and therapeutic options.
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Affiliation(s)
- Maria Diab
- From the Wayne State University School of Medicine, Detroit, Michigan, USA
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12
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Parsons CS, Helm EJ. Pneumonia and acute respiratory distress syndrome. IMAGING 2016. [DOI: 10.1183/2312508x.10003315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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13
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Pandey T, Thomas S, Heller MT. Current Indications, Techniques, and Imaging Findings of Stem Cell Treatment and Bone Marrow Transplant. Radiol Clin North Am 2016; 54:375-96. [PMID: 26896230 DOI: 10.1016/j.rcl.2015.09.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The role of stem cell therapy in the treatment of hematologic and nonhematologic conditions is ever increasing. A thorough knowledge of the applications of stem cells and transplant physiology is essential for understanding the imaging manifestations. Stem cell imaging includes molecular imaging, and diagnostic and interventional radiology. It is possible to make a diagnosis of various complications and diseases associated with stem cell transplant. This article presents a simplified overview of stem cell applications and techniques with focus on hematopoietic stem cell transplant imaging.
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Affiliation(s)
- Tarun Pandey
- Department of Radiology, University of Arkansas for Medical Sciences, Slot #556 West Markham Street, Little Rock, AR 72205, USA.
| | - Stephen Thomas
- Department of Radiology, University of Chicago, 5841 South Maryland Avenue, MC 2026, Chicago, IL 60611, USA
| | - Matthew T Heller
- Radiology Residency Program, Division of Abdominal Imaging, University of Pittsburgh Medical Center, 200 Lothrop Street, Suite 201 East, Wing PUH, Pittsburgh, PA 15213, USA
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14
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Sodhi KS, Khandelwal N, Saxena AK, Singh M, Agarwal R, Bhatia A, Lee EY. Rapid lung MRI in children with pulmonary infections: Time to change our diagnostic algorithms. J Magn Reson Imaging 2015; 43:1196-206. [DOI: 10.1002/jmri.25082] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 10/06/2015] [Indexed: 12/24/2022] Open
Affiliation(s)
- Kushaljit Singh Sodhi
- Department of Radio Diagnosis and Imaging; Post Graduate Institute of Medical Education and Research; Sector-12 Chandigarh India
| | - Niranjan Khandelwal
- Department of Radio Diagnosis and Imaging; Post Graduate Institute of Medical Education and Research; Sector-12 Chandigarh India
| | - Akshay Kumar Saxena
- Department of Radio Diagnosis and Imaging; Post Graduate Institute of Medical Education and Research; Sector-12 Chandigarh India
| | - Meenu Singh
- Department of Paediatrics; Post Graduate Institute of Medical Education and Research; Sector-12 Chandigarh India
| | - Ritesh Agarwal
- Department of Pulmonary Medicine; Post Graduate Institute of Medical Education and Research; Sector-12 Chandigarh India
| | - Anmol Bhatia
- Department of Radio Diagnosis and Imaging; Post Graduate Institute of Medical Education and Research; Sector-12 Chandigarh India
| | - Edward Y. Lee
- Departments of Radiology and Medicine; Pulmonary Division, Boston Children's Hospital and Harvard Medical School; Boston Massachusetts USA
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15
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ZazaDitYafawi J, Soubani AO. Pulmonary Complications After Hematopoietic Stem Cell Transplantation. CLINICAL PULMONARY MEDICINE 2015; 22:230-238. [DOI: 10.1097/cpm.0000000000000115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
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16
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Küpeli E, Ulubay G, Bayram Akkurt S, Öner Eyüboğlu F, Sezgin A. Invasive Pulmonary Aspergillosis in Heart Transplant Recipients. EXP CLIN TRANSPLANT 2015; 13 Suppl 1:352-5. [DOI: 10.6002/ect.mesot2014.p204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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17
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Choi MH, Jung JI, Chung WD, Kim YJ, Lee SE, Han DH, Ahn MI, Park SH. Acute pulmonary complications in patients with hematologic malignancies. Radiographics 2015; 34:1755-68. [PMID: 25310429 DOI: 10.1148/rg.346130107] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Various acute pulmonary complications may occur in patients with hematologic malignancies because they are in an immunocompromised state due to systemic disease or to chemotherapy or hematopoietic stem cell transplantation. Pulmonary complications may arise from other treatment regimens, as well, or from direct pulmonary involvement in the malignant disease process. The differential diagnosis of pulmonary opacities in patients with hematologic malignancies is broad and includes both infectious and noninfectious causes. Pulmonary hemorrhage, edema, leukostasis, and pneumonia are well-known and common acute pulmonary complications. Less common complications are now encountered with increasing frequency because of the increasing complexity of therapeutic regimens for hematologic malignancies, which may include various drugs that are in clinical trials or were recently released to market. These once uncommon acute pulmonary complications include retinoic acid syndrome, tyrosine kinase inhibitor-induced pulmonary complications, engraftment syndrome, and hemophagocytic lymphohistiocytosis. It is often difficult to differentiate between these entities. However, the clinical setting and radiologic imaging findings may provide clues for interpreting imaging findings of abnormal pulmonary opacity in patients with a hematologic malignancy. Pulmonary hemorrhage is characterized by a sudden onset of symptoms and rapid progression of pulmonary imaging abnormalities and usually occurs in patients with impaired coagulation or a predisposition to bleed. Pulmonary edema should be considered when typical findings of hydrostatic pulmonary edema are seen. Pulmonary leukostasis develops in patients with hyperleukocytosis and leads to symptoms such as a cough, fever, and dyspnea. Various types of pneumonia may develop, depending on the degree and duration of immunosuppression in the patient. Retinoic acid syndrome, tyrosine kinase inhibitor-induced pulmonary complications, and engraftment syndrome occur after specific treatments, so a detailed medical history including recent or current treatments may be helpful for diagnosis. Accurate differentiation of these entities allows their appropriate management, with resultant decreases in morbidity and mortality.
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Affiliation(s)
- Moon Hyung Choi
- From the Department of Radiology, Seoul St. Mary's Hospital (M.H.C., J.I.J., W.D.C., D.H.H., M.I.A., S.H.P.), and Catholic Hematopoietic Stem Cell Transplantation Center (Y.J.K., S.E.L.), College of Medicine, Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137-701, Korea
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British Society for Medical Mycology best practice recommendations for the diagnosis of serious fungal diseases. THE LANCET. INFECTIOUS DISEASES 2015; 15:461-74. [PMID: 25771341 DOI: 10.1016/s1473-3099(15)70006-x] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Invasive fungal diseases are an important cause of morbidity and mortality in a wide range of patients, and early diagnosis and management are a challenge. We therefore did a review of the scientific literature to generate a series of key recommendations for the appropriate use of microbiological, histological, and radiological diagnostic methods for diagnosis of invasive fungal diseases. The recommendations emphasise the role of microscopy in rapid diagnosis and identification of clinically significant isolates to species level, and the need for susceptibility testing of all Aspergillus spp, if treatment is to be given. In this Review, we provide information to improve understanding of the importance of antigen detection for cryptococcal disease and invasive aspergillosis, the use of molecular (PCR) diagnostics for aspergillosis, and the crucial role of antibody detection for chronic and allergic aspergillosis. Furthermore, we consider the importance of histopathology reporting with a panel of special stains, and emphasise the need for urgent (<48 hours) and optimised imaging for patients with suspected invasive fungal infection. All 43 recommendations are auditable and should be used to ensure best diagnostic practice and improved outcomes for patients.
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Kloth C, Forler S, Gatidis S, Beck R, Spira D, Nikolaou K, Horger M. Comparison of chest-CT findings of Influenza virus-associated pneumonia in immunocompetent vs. immunocompromised patients. Eur J Radiol 2015; 84:1177-83. [PMID: 25796425 DOI: 10.1016/j.ejrad.2015.02.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 02/10/2015] [Accepted: 02/11/2015] [Indexed: 01/24/2023]
Abstract
PURPOSE To retrospectively compare CT-patterns of pulmonary infiltration caused by different Influenza virus types and subtypes in immunocompetent and immunocompromised patients for possible discrimination. MATERIALS AND METHODS Retrospective database search at our institution yielded 237 patients who were tested positive for Influenza virus type A or type B by bronchoalveolar lavage between January 2009 and April 2014. Fifty-six of these patients (female 26; male 30; median age 55.8 y, range 17-86 y; SD ± 14.4 y) underwent chest-HRCT due to a more severe clinical course of pulmonary infection. We registered all CT-findings compatible with pulmonary infection classifying them as airway predominant (tree-in-bud, centrilobular nodules, bronchial wall thickening ± peribronchial ground-glass opacity and consolidation) vs. interstitial-parenchymal predominant (bilateral, symmetrical GGO, consolidation, crazy paving and/or interlobular septal thickening). Twenty-six patients (46.4%) had follow-up CT-studies (0.78 mean, SD ± 5.8 scans). RESULTS Thirty-six patients were immunocompromised (group I) whereas 20 patients were immunocompetent (group II). An airway-centric pattern of infection was found in 15 patients (group I) and 14 patients (group II) whereas an interstitial-parenchymal predominant pattern was found in 14 patients (group I) and 2 patients (group II). Eleven patients had a mixed pattern with no clear assignment to one group. At FU, 12 patients from group I and 3 from group II showed transitional infiltration patterns: in 10 patients from interstitial-parenchymal into airway predominant pattern and in five patients from airway predominant into interstitial-parenchymal. No significant differences in the pattern of pulmonary infection were found between different types and subtypes of Influenza viruses. CONCLUSION Patterns of pulmonary infiltration caused by Influenza viruses do not significantly differ between immunocompetent and immunocompromised patients or between different types and subtypes of Influenza virus. One possible explanation for this could be the temporarily interchangeable character of pulmonary infiltration in this infection.
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Affiliation(s)
- C Kloth
- Department of Diagnostic and Interventional Radiology, Eberhard-Karls-University, Hoppe-Seyler-Str. 3, 72076 Tübingen, Germany.
| | - S Forler
- Department of Diagnostic and Interventional Radiology, Eberhard-Karls-University, Hoppe-Seyler-Str. 3, 72076 Tübingen, Germany
| | - S Gatidis
- Department of Diagnostic and Interventional Radiology, Eberhard-Karls-University, Hoppe-Seyler-Str. 3, 72076 Tübingen, Germany
| | - R Beck
- Institute of Medical Virology and Epidemiology of Viral Diseases, Eberhard-Karls-University, Elfriede-Aulhorn-Straße 6, 72076 Tübingen, Germany
| | - D Spira
- Department of Diagnostic and Interventional Radiology, Eberhard-Karls-University, Hoppe-Seyler-Str. 3, 72076 Tübingen, Germany
| | - K Nikolaou
- Department of Diagnostic and Interventional Radiology, Eberhard-Karls-University, Hoppe-Seyler-Str. 3, 72076 Tübingen, Germany
| | - M Horger
- Department of Diagnostic and Interventional Radiology, Eberhard-Karls-University, Hoppe-Seyler-Str. 3, 72076 Tübingen, Germany
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Abstract
Neutrophils play critical roles in innate immunity and host defense. However, excessive neutrophil accumulation or hyper-responsiveness of neutrophils can be detrimental to the host system. Thus, the response of neutrophils to inflammatory stimuli needs to be tightly controlled. Many cellular processes in neutrophils are mediated by localized formation of an inositol phospholipid, phosphatidylinositol (3,4,5)-trisphosphate (PtdIns(3,4,5)P3), at the plasma membrane. The PtdIns(3,4,5)P3 signaling pathway is negatively regulated by lipid phosphatases and inositol phosphates, which consequently play a critical role in controlling neutrophil function and would be expected to act as ideal therapeutic targets for enhancing or suppressing innate immune responses. Here, we comprehensively review current understanding about the action of lipid phosphatases and inositol phosphates in the control of neutrophil function in infection and inflammation.
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Affiliation(s)
- Hongbo R Luo
- Department of Pathology, Harvard Medical School, Boston, MA, USA Department of Lab Medicine, Children's Hospital Boston, Dana-Farber/Harvard Cancer Center, Boston, MA, USA
| | - Subhanjan Mondal
- Department of Pathology, Harvard Medical School, Boston, MA, USA Department of Lab Medicine, Children's Hospital Boston, Dana-Farber/Harvard Cancer Center, Boston, MA, USA Promega Corporation, Madison, WI, USA
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Atalla A, Garnica M, Maiolino A, Nucci M. Risk factors for invasive mold diseases in allogeneic hematopoietic cell transplant recipients. Transpl Infect Dis 2015; 17:7-13. [DOI: 10.1111/tid.12328] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 09/15/2014] [Accepted: 09/28/2014] [Indexed: 01/23/2023]
Affiliation(s)
- A. Atalla
- Department of Internal Medicine; University Hospital; Universidade Federal de Juiz de Fora; Juiz de Fora Brazil
| | - M. Garnica
- Department of Internal Medicine; University Hospital; Universidade Federal do Rio de Janeiro; Rio de Janeiro Brazil
| | - A. Maiolino
- Department of Internal Medicine; University Hospital; Universidade Federal do Rio de Janeiro; Rio de Janeiro Brazil
| | - M. Nucci
- Department of Internal Medicine; University Hospital; Universidade Federal do Rio de Janeiro; Rio de Janeiro Brazil
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Pandey T, Maximin S, Bhargava P. Imaging of complications from hematopoietic stem cell transplant. Indian J Radiol Imaging 2014; 24:327-38. [PMID: 25489126 PMCID: PMC4247502 DOI: 10.4103/0971-3026.143895] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Stem cell transplant has been the focus of clinical research for a long time given its potential to treat several incurable diseases like hematological malignancies, diabetes mellitus, and neuro-degenerative disorders like Parkinson disease. Hematopoietic stem cell transplantation (HSCT) is the oldest and most widely used technique of stem cell transplant. HSCT has not only been used to treat hematological disorders including hematological malignancies, but has also been found useful in treamtent of genetic, immunological, and solid tumors like neuroblastoma, lymphoma, and germ cell tumors. In spite of the rapid advances in stem cell technology, success rate with this technique has not been universal and many complications have also been seen with this form of therapy. The key to a successful HSCT therapy lies in early diagnosis and effective management of complications associated with this treatment. Our article aims to review the role of imaging in diagnosis and management of stem cell transplant complications associated with HSCT.
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Affiliation(s)
- Tarun Pandey
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Suresh Maximin
- Department of Radiology, University of Washington and VA Puget Sound Health Care System, Seattle, Washington, USA
| | - Puneet Bhargava
- Department of Radiology, University of Washington and VA Puget Sound Health Care System, Seattle, Washington, USA
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Arnaout K, Patel N, Jain M, El-Amm J, Amro F, Tabbara IA. Complications of allogeneic hematopoietic stem cell transplantation. Cancer Invest 2014; 32:349-62. [PMID: 24902046 DOI: 10.3109/07357907.2014.919301] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Infection, graft-versus-host disease (GVHD), and to a lesser extent sinusoidal obstructive syndrome (SOS) represent the major causes of morbidity and mortality in patients undergoing allogeneic hematopoietic stem cell transplantation (AHSCT). During the last decade, progress in prevention and treatment of these complications led to improvement in the outcome of these patients. Despite the fact that nonmyeloablative regimens have been increasingly used in elderly patients and in patients with co-morbidities, the nonrelapse related mortality remains a challenge and long-term follow-up is required. The objective of this manuscript is to provide an updated concise review of the complications of AHSCT and of the available treatment interventions.
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Affiliation(s)
- Karim Arnaout
- Department of Medicine, Division of Hematology and Oncology, George Washington University Medical Center, Washington, USA
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24
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Ono A, Okada F, Takata S, Hiramatsu K, Ando Y, Nakayama T, Maeda T, Mori H. A comparative study of thin-section CT findings between seasonal influenza virus pneumonia and Streptococcus pneumoniae pneumonia. Br J Radiol 2014; 87:20140051. [PMID: 24834476 DOI: 10.1259/bjr.20140051] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVE To compare the pulmonary thin-section CT findings in patients with seasonal influenza virus pneumonia with Streptococcus pneumoniae pneumonia. METHODS The study group included 30 patients (20 males and 10 females; age range, 20-91 years; mean age, 55.9 years) with seasonal influenza virus pneumonia and 71 patients (47 males and 24 females; age range, 27-92 years; mean age, 67.5 years) with S. pneumoniae pneumonia. RESULTS The proportion of community-acquired infection was significantly higher in patients with influenza virus pneumonia than with S. pneumoniae pneumonia (p = 0.001). CT findings of ground-glass attenuation (GGA) (p = 0.012) and crazy-paving appearance (p = 0.03) were significantly more frequent in patients with influenza virus pneumonia than with S. pneumoniae pneumonia. Conversely, consolidation (p < 0.001), mucoid impaction (p < 0.001), centrilobular nodules (p = 0.04) and pleural effusion (p = 0.003) were significantly more frequent in patients with S. pneumoniae pneumonia than in those with influenza virus pneumonia. CONCLUSION Pulmonary thin-section CT findings, such as consolidation and mucoid impaction may be useful in distinguishing between seasonal influenza virus pneumonia and S. pneumoniae pneumonia. ADVANCES IN KNOWLEDGE (1) Distinguishing seasonal influenza virus pneumonia with S. pneumoniae pneumonia is important. (2) The CT findings of GGA and crazy-paving appearance were more frequently found in patients with influenza virus pneumonia than in patients with S. pneumoniae pneumonia, whereas consolidation, mucoid impaction, centrilobular nodules and pleural effusion were more frequently found in patients with S. pneumoniae pneumonia.
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Affiliation(s)
- A Ono
- Department of Radiology, Oita University Faculty of Medicine, Oita, Japan
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Katagiri A, Ando T, Kon T, Yamada M, Iida N, Takasaki Y. Cavitary lung lesion in a patient with systemic lupus erythematosus: an unusual manifestation of cytomegalovirus pneumonitis. Mod Rheumatol 2014. [DOI: 10.3109/s10165-008-0039-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Sharma SK, Kumar S, Singh AK, Seth T, Mishra P, Sharma S, Mahapatra M. Diffuse alveolar hemorrhage following allogeneic peripheral blood stem cell transplantation: a case report and a short review. Indian J Hematol Blood Transfus 2012; 30:41-4. [PMID: 24554821 DOI: 10.1007/s12288-012-0184-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Accepted: 08/02/2012] [Indexed: 11/26/2022] Open
Abstract
Pulmonary complications are one of the most common causes of morbidity and mortality in patients undergoing peripheral blood stem cell transplantation. Both infective and non-infective etiologies can involve the lungs during this period and differentiating them clinically is a challenging task and management differs in each case. We present here a case of acute myeloid leukemia, in whom following allogeneic peripheral blood stem cell transplantation, diffuse alveolar hemorrhage developed.
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Affiliation(s)
- Sanjeev Kumar Sharma
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| | - Suman Kumar
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| | - Avinash Kumar Singh
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| | - Tulika Seth
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| | - Pravas Mishra
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| | - Sanjay Sharma
- Department of Radiology, All India Institute of Medical Sciences, New Delhi, India
| | - Manoranjan Mahapatra
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
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Walker RC, Brown TL, Jones-Jackson LB, De Blanche L, Bartel T. Imaging of Multiple Myeloma and Related Plasma Cell Dyscrasias. J Nucl Med 2012; 53:1091-101. [DOI: 10.2967/jnumed.111.098830] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Xie LX, Liu SY, Chen YS, Liu K, Xue F. An animal experiment about early pulmonary candidiasis in immunosuppressive rabbits: thin-section CT images dynamically observed and proved by histopathological results. Acta Radiol 2011; 52:743-9. [PMID: 21508200 DOI: 10.1258/ar.2011.100455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND Early detection and treatment of pulmonary fungal infection in immunocompromised patients has a profound impact on mortality. However, information available about the thin-section computed tomography (CT) findings of Candida pneumonia has largely been limited to isolated cases seen in reviews of various infections and to other acute lung diseases seen in immunocompromised patients. PURPOSE To dynamically observe and evaluate CT findings in immunosuppressed animals with histopathologically confirmed pulmonary candidiasis at the acute stage. MATERIAL AND METHODS Twenty-four New Zealand rabbits were randomly divided into an experimental group (n = 21) and a control group (n = 3). Pulmonary candidiasis was established by C. albicans inoculation via a transtracheal route in immunosuppressed rabbits in the experimental group, and an equivalent amount of normal saline was injected via the same way in the control group. Chest CT scan was performed before and on alternative days after inoculation/injection. Microbiological and pathological results were obtained by autopsy. RESULTS In the experiment group, pulmonary candidiasis was successfully established in 13 rabbits as confirmed by microbiology and pathology. Areas of air-space consolidation were present in 10 (10/13) rabbits, with lobular distribution in six and lobar or segmental distribution in four, pathologically presenting as bronchopneumonia or hemorrhagic lung infarcts. Areas of ground-glass opacity (GGO) were identified in five (5/13) rabbits, three of which were associated with other abnormalities, presenting as bronchopneumonia or interstitial pneumonitis. Multiple nodules were seen in three (3/13) rabbits. They were clustered around bronchovascular bundles in two rabbits, and subpleural in the remaining one, pathologically presenting as hemorrhagic granulomas. Other less common CT findings included thickening of bronchovascular bundles (n = 3), linear opacity (n = 1), and pneumothorax (n = 1). No abnormality was detected by CT scan and pathological examination in the three rabbits of the control group. CONCLUSION Peripheral multiple areas of lobular consolidation and/or GGO representing bronchopneumonia were the most common thin-section CT findings of pulmonary candidiasis at the early stage.
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Affiliation(s)
- Li-xuan Xie
- Department of Diagnostic Imaging, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Shi-yuan Liu
- Department of Diagnostic Imaging, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - You-san Chen
- Department of Diagnostic Imaging, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Kai Liu
- Department of Diagnostic Imaging, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Feng Xue
- Department of Diagnostic Imaging, Changzheng Hospital, Second Military Medical University, Shanghai, China
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Abstract
Infectious complications are a serious cause of morbidity and mortality following hematopoietic stem cell transplantation (HSCT), and the lung is a particular target organ post-transplant. Our laboratory has used a murine bone marrow transplant model to study alterations in immunity that occur as a result of transplantation. Our studies focus on immune responses that occur following immune cell reconstitution in the absence of immunosuppressive drug therapy or graft-versus-host disease. We have found that impaired clearance of both bacterial and viral pulmonary infections is related to specific alterations in immune cell function and cytokine production. Our data offer insight into mechanisms that contribute to opportunistic infections in HSCT recipients.
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Affiliation(s)
- Stephanie M. Coomes
- Graduate Program in Immunology, University of Michigan, Ann Arbor, MI 48109-2200, USA
| | - Leah L. N. Hubbard
- Graduate Program in Immunology, University of Michigan, Ann Arbor, MI 48109-2200, USA
| | - Bethany B. Moore
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan, 4053 BSRB, 109 Zina Pitcher Pl., Ann Arbor, MI 48109-2200, USA
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI 48109-2200, USA
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Pretreatment with phosphatase and tensin homolog deleted on chromosome 10 (PTEN) inhibitor SF1670 augments the efficacy of granulocyte transfusion in a clinically relevant mouse model. Blood 2011; 117:6702-13. [PMID: 21521784 DOI: 10.1182/blood-2010-09-309864] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The clinical outcome of granulocyte transfusion therapy is often hampered by short ex vivo shelf life, inefficiency of recruitment to sites of inflammation, and poor pathogen-killing capability of transplanted neutrophils. Here, using a recently developed mouse granulocyte transfusion model, we revealed that the efficacy of granulocyte transfusion can be significantly increased by elevating intracellular phosphatidylinositol (3,4,5)-trisphosphate signaling with a specific phosphatase and tensin homolog deleted on chromosome 10 (PTEN) inhibitor SF1670. Neutrophils treated with SF1670 were much sensitive to chemoattractant stimulation. Neutrophil functions, such as phagocytosis, oxidative burst, polarization, and chemotaxis, were augmented after SF1670 treatment. The recruitment of SF1670-pretreated transfused neutrophils to the inflamed peritoneal cavity and lungs was significantly elevated. In addition, transfusion with SF1670-treated neutrophils led to augmented bacteria-killing capability (decreased bacterial burden) in neutropenic recipient mice in both peritonitis and bacterial pneumonia. Consequently, this alleviated the severity of and decreased the mortality of neutropenia-related pneumonia. Together, these observations demonstrate that the innate immune responses can be enhanced and the severity of neutropenia-related infection can be alleviated by augmenting phosphatidylinositol (3,4,5)-trisphosphate in transfused neutrophils with PTEN inhibitor SF1670, providing a therapeutic strategy for improving the efficacy of granulocyte transfusion.
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Fujita J, Bandoh S, Yamaguchi M, Higa F, Tateyama M. Chest CT findings of influenza virus-associated pneumonia in 12 adult patients. Influenza Other Respir Viruses 2009; 1:183-7. [PMID: 19453425 PMCID: PMC4941884 DOI: 10.1111/j.1750-2659.2008.00034.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Objective In this study, we describe the chest computed tomography findings of influenza virus‐associated pneumonia in adult patients. Methods Our retrospective study included 12 adult patients who had proven influenza virus ‐ associated pneumonia. Results Out of 12 patients, six were diagnosed as having pure influenza virus pneumonia, five as having bronchopneumonia caused by bacteria associated with influenza A infection, and one as having a cryptogenic organizing pneumonia associated with influenza A infection. Conclusion Radiographic findings of influenza virus pneumonia in adult patients consist of ground‐glass attenuation. Localized patchy consolidations were observed in cases of bronchopneumonia.
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Affiliation(s)
- Jiro Fujita
- Department of Medicine and Therapeutics, Control and Prevention of Infectious Diseases (First Department of Internal Medicine), Faculty of Medicine, University of the Ryukyus, 207 Uehara, Nishihara-cho, Okinawa, Japan.
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Coelho LODM, Gasparetto TD, Escuissato DL. Bacterial pneumonia following bone marrow transplantation: HRCT findings. J Bras Pneumol 2009; 35:431-5. [DOI: 10.1590/s1806-37132009000500007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2008] [Accepted: 11/10/2008] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE: To describe HRCT findings in patients with bacterial pneumonia following bone marrow transplantation (BMT). METHODS: This was a retrospective study involving 30 patients diagnosed with bacterial pneumonia in whom HRCT of the chest was performed within 24 h after the onset of symptoms and the diagnosis was confirmed, based on a positive culture of sputum or bronchial aspirate, together with a positive pleural fluid or blood culture, within one week after symptom onset. There were 20 male patients and 10 female patients. The median age was 21 years (range, 1-41 years). The BMT had been performed for the treatment of the following: chronic myeloid leukemia, in 14 cases; severe aplastic anemia, in 6; acute myeloid leukemia, in 4; Fanconi's anemia, in 3; and acute lymphocytic leukemia, in 3. Two radiologists analyzed the HRCT scans and reached their final decisions by consensus. RESULTS: The most common HRCT findings were air-space consolidation (in 60%), small centrilobular nodules (in 50%), ground-glass opacities (in 40%), bronchial wall thickening (in 20%), large nodules (in 20%), pleural lesions (in 16.7%) and tree-in-bud opacities (in 10%). The pulmonary lesions were distributed in the central and peripheral areas in 15 patients, whereas they were exclusively peripheral in 11. Lesions were located in the lower and middle lobes of the lung in 22 and 20 patients, respectively. CONCLUSIONS: The most common HRCT findings in our patient sample were air-space consolidation, small centrilobular nodules and ground-glass opacities, most often in the central and peripheral regions of the middle and lower lung zones.
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Targeted deletion of tumor suppressor PTEN augments neutrophil function and enhances host defense in neutropenia-associated pneumonia. Blood 2009; 113:4930-41. [PMID: 19286998 DOI: 10.1182/blood-2008-06-161414] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Neutropenia and related infections are the most important dose-limiting toxicities in anticancer chemotherapy and radiotherapy. In this study, we explored a new strategy for augmenting host defense in neutropenia-related pneumonia. Phosphatidylinositol-3,4,5-trisphosphate (PtdIns(3,4,5)P(3)) signaling in neutrophils was elevated by depleting PTEN, a phosphatidylinositol 3'-phosphatase that hydrolyzes PtdIns(3,4,5)P(3). In myeloid-specific PTEN knockout mice, significantly more neutrophils were recruited to the inflamed lungs during neutropenia-associated pneumonia. Using an adoptive transfer technique, we demonstrated that this enhancement could be caused directly by PTEN depletion in neutrophils. In addition, disruption of PTEN increased the recruitment of macrophages and elevated proinflammatory cytokines/chemokine levels in the inflamed lungs, which could also be responsible for the enhanced neutrophil recruitment. Depleting PTEN also significantly delayed apoptosis and enhanced the bacteria-killing capability of the recruited neutrophils. Finally, we provide direct evidence that enhancement of neutrophil function by elevating PtdIns(3,4,5)P(3) signaling can alleviate pneumonia-associated lung damage and decrease pneumonia-elicited mortality. Collectively, these results not only provide insight into the mechanism of action of PTEN and PtdIns(3,4,5)P(3) signaling pathway in modulating neutrophil function during lung infection and inflammation, but they also establish PTEN and related pathways as potential therapeutic targets for treating neutropenia-associated pneumonia.
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Azuma N, Hashimoto N, Yasumitsu A, Fukuoka K, Yokoyama K, Sawada H, Nishioka A, Sekiguchi M, Kitano M, Kuroiwa T, Matsui K, Sano H. CMV infection presenting as a cavitary lung lesion in a patient with systemic lupus erythematosus receiving immunosuppressive therapy. Intern Med 2009; 48:2145-9. [PMID: 20009410 DOI: 10.2169/internalmedicine.48.2495] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We report a case of cytomegalovirus (CMV) pneumonitis that presented as a cavitary lung lesion in a patient with systemic lupus erythematosus receiving immunosuppressive treatment. The lesion was confirmed by positive polymerase chain reaction (PCR) for CMV in bronchoalveolar lavage fluid (BALF) and CMV antigenemia. PCR for CMV in BALF was demonstrated to be useful for the diagnosis of CMV pneumonitis on the basis of high sensitivity and specificity. After initiating ganciclovir, the lesion gradually regressed. A cavitary lung lesion associated with CMV is extremely rare. This presentation suggests that the differential diagnosis of cavitary lung lesion in immunocompromised individuals should include CMV.
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Affiliation(s)
- Naoto Azuma
- Division of Rheumatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya.
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EBV post transplantation lymphoproliferative disease-associated pneumomediastinum in a pediatric patient with long-lasting low loads of plasma EBV-DNA positivity. Bone Marrow Transplant 2008; 42:565-6. [PMID: 18660842 DOI: 10.1038/bmt.2008.214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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37
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Katagiri A, Ando T, Kon T, Yamada M, Iida N, Takasaki Y. Cavitary lung lesion in a patient with systemic lupus erythematosus: an unusual manifestation of cytomegalovirus pneumonitis. Mod Rheumatol 2008; 18:285-9. [DOI: 10.1007/s10165-008-0039-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2007] [Accepted: 12/03/2007] [Indexed: 10/22/2022]
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Gasparetto TD, Escuissato DL, Marchiori E. Pulmonary infections following bone marrow transplantation: High-resolution CT findings in 35 paediatric patients. Eur J Radiol 2008; 66:117-21. [PMID: 17624710 DOI: 10.1016/j.ejrad.2007.05.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2007] [Revised: 05/24/2007] [Accepted: 05/24/2007] [Indexed: 01/15/2023]
Abstract
PURPOSE The purpose of this study was to assess the high-resolution CT findings of paediatric patients who had pulmonary infections following bone marrow transplantation (BMT), and to evaluate the differential diagnosis through high-resolution CT of the various pathogens responsible for pulmonary infections after BMT. PATIENTS AND METHODS The study included 35 consecutive patients who had documented pulmonary infection, high-resolution CT of the chest performed within 24h of the beginning of symptoms, and proven diagnosis within 1 week of the onset of symptoms. The pulmonary infections were due to viruses (n=16), bacteria (n=9), fungi (n=9), and protozoa (n=1). Two radiologists analyzed the CT scans and reached final decisions regarding the findings by consensus. RESULTS Four patients with confirmed pneumonia had normal high-resolution CT scans. Regarding the viral infections, the most frequent features were areas of ground-glass attenuation (43.7%) and small centrilobular nodules (31.2%). Airspace consolidation (88.9%), small centrilobular nodules (22.2%) and ground-glass attenuation (22.2%) were the most frequent findings in patients with bacterial pneumonia following BMT. Large nodules were seen in 66.7% of the patients with fungal pneumonia, and in only one case of virus infection. The "halo sign" (n=5) was seen only in patients with fungal pneumonia. CONCLUSION In conclusion, the main causes of pulmonary infection in paediatric patients following BMT share similar high-resolution CT findings. Large nodules and "halo sign" are more common in patients with fungal infections.
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Pawson H, Jayaweera A, Wigmore T. Intensive care management of patients following haematopoietic stem cell transplantation. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.cacc.2008.01.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kanne JP, Godwin JD, Franquet T, Escuissato DL, Müller NL. Viral pneumonia after hematopoietic stem cell transplantation: high-resolution CT findings. J Thorac Imaging 2007; 22:292-9. [PMID: 17721347 DOI: 10.1097/rti.0b013e31805467f4] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Hematopoietic stem cell transplantation (HSCT) is the treatment of choice for many hematologic malignancies and nonmalignant disorders of bone marrow function. Pulmonary infections from bacterial, fungal, and viral organisms are a major cause of morbidity and mortality in patients after HSCT. The radiographic and high-resolution computed tomography (HRCT) findings of the different lower respiratory tract viral infections are quite similar. Findings of viral pneumonia on HRCT include small poorly defined centrilobular nodules and patchy, often bilateral, areas of peribronchial ground-glass opacity and consolidation. Air trapping may be present because of associated bronchiolitis. Interlobular septal thickening, bronchial wall thickening, and tree-in-bud opacities may also be present. Advanced viral pneumonia with diffuse alveolar damage is characterized by patchy or confluent consolidation and ground-glass opacities. Although nonspecific, in the correct clinical setting, these HRCT findings can help suggest the diagnosis of viral pneumonia in recipients of HSCT.
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Affiliation(s)
- Jeffrey P Kanne
- Department of Radiology, Vancouver General Hospital, Vancouver BC, Canada.
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42
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Armenian SH, Hoffman JA, Butturini AM, Kapoor N, Mascarenhas L. Invasive diagnostic procedures for pulmonary infiltrates in pediatric hematopoietic stem cell transplant recipients. Pediatr Transplant 2007; 11:736-42. [PMID: 17910650 DOI: 10.1111/j.1399-3046.2007.00733.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
To evaluate the role of BAL, CTB, and OLB in the management of pulmonary infiltrates in pediatric HSCT recipients, we conducted a retrospective review of clinical records of pediatric HSCT recipients. Data were analyzed using Chi-square for dichotomous and anova for continuous variables. Logistic regression was used to adjust confounding variables for diagnostic yield. Forty patients underwent 44 separate procedures. Infections were the prevailing cause of infiltrates with a positive diagnostic yield (96%). CTB and OLB were performed more often in patients with focal infiltrates compared with BAL (100%, 71% vs. 22%; p < 0.01). Adverse events were not significantly different across the three procedures. OLB more often yielded information that led to change in medical management (71% vs. 0%, 34%; p < 0.05) compared with CTB and BAL. Patients who had a positive diagnostic yield had no apparent survival advantage when compared with those in whom a procedure yielded no information. Logistic regression demonstrated that focal infiltrate was the only independently predictive variable for identifying a cause of pulmonary infiltrate. In conclusion, all three invasive diagnostic procedures were safe. Having a focal infiltrate was independently and significantly associated with having a positive diagnostic yield.
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Affiliation(s)
- Saro H Armenian
- Division of Hematology/Oncology, Childrens Hospital Los Angeles, Los Angeles, CA, USA
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43
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Mihu CN, King E, Yossepovitch O, Taur Y, Jakubowski A, Pamer E, Papanicolaou GA. Risk factors and attributable mortality of late aspergillosis after T-cell depleted hematopoietic stem cell transplantation. Transpl Infect Dis 2007; 10:162-7. [PMID: 17662036 DOI: 10.1111/j.1399-3062.2007.00272.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM Invasive aspergillosis occurs in 5-15% of allogeneic hematopoietic stem cell transplant (HSCT) recipients. Through the 1990s there has been an increase in the incidence of late aspergillosis (LA). We report on the incidence, risk factors, and attributable mortality of LA in a cohort of 398 adult and pediatric patients at Memorial Sloan-Kettering Cancer Center from January 1999 through December 2003. METHODS LA was defined as occurring > 40 days post HSCT. LA cases were identified by prospective surveillance and examination of a computerized database. Probable or definite aspergillosis was defined by standard EORTC/MSG criteria. Mortality was attributed to LA if it caused or significantly contributed to death. RESULTS The overall incidence of LA in our cohort was 4.1%. Median time from stem cell infusion to diagnosis of LA was 164 days (range 68-677) after HSCT. The incidence of LA among unmodified, T-cell depleted, or reduced intensity HSCT was 2.2%, 4%, and 6.8%, respectively (P not significant). Risk factors for LA were grade II-IV acute graft-versus-host disease (GVHD) (P=0.002), chronic GVHD (P=0.01), secondary neutropenia (P=0.02), and reduced intensity conditioning containing alemtuzumab (P=0.01). LA was the immediate cause of death in 1 of 10 (10%) T-cell depleted, 2 of 2 (100%) unmodified, and 1 of 4 (25%) of reduced-intensity HSCT. CONCLUSIONS LA developed a median 164 days post HSCT. All-cause 30-day mortality of LA was 56.3%. The majority of LA cases died of concurrent infections and not from invasive aspergillosis.
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Affiliation(s)
- C N Mihu
- Service of Infectious Disease, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, New York, USA
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Pellón Dabén R, Marco de Lucas E, Martín Cuesta L, Piedra Velasco T, Arnaiz García J, Landeras R, López Duarte M, Bermúdez A. Imaging findings of pulmonary infection caused by Scedosporium prolificans in a deep immunocompromised patient’. Emerg Radiol 2007; 15:47-9. [PMID: 17624561 DOI: 10.1007/s10140-007-0634-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2007] [Accepted: 05/19/2007] [Indexed: 10/23/2022]
Abstract
Scedosporium prolificans is an emerging fungus that causes rapid progressive and disseminated infections in immunodepressed patients. We present a case of a 34-year-old woman with chronic myelogenous leukemia who received a bone marrow transplantation and suffered a sudden respiratory failure in +67 day. Chest radiographies showed growing bilateral patchy condensations. Computed Tomography depicted bilateral nodular condensation of alveolar space. S. prolificans was detected from sputum, but the patient died 72 h later. Imaging findings of lung scedosporiosis are nonspecific, but CT may provide a prompter diagnosis and allow to add newer antifungal treatments. This report presents the first imaging report of lung scedosporiosis.
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Affiliation(s)
- Raúl Pellón Dabén
- Department of Radiology, Hospital Universitario Marqués de Valdecilla, Avenida Valdecilla s/n, 39008 Santander, Cantabria, Spain.
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Grosu I, Ghekiere O, Layios N, Hantson P, Cosnard G. Toxoplasma encephalitis after autologous stem cell transplantation. Leuk Lymphoma 2007; 48:201-3. [PMID: 17325870 DOI: 10.1080/10428190601011564] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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46
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Franquet T, Rodriguez S, Martino R, Giménez A, Salinas T, Hidalgo A. Thin-Section CT Findings in Hematopoietic Stem Cell Transplantation Recipients with Respiratory Virus Pneumonia. AJR Am J Roentgenol 2006; 187:1085-90. [PMID: 16985161 DOI: 10.2214/ajr.05.0439] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The purpose of this study was to use serial thin-section CT scans to assess the incidence of respiratory viral infection and lung abnormalities in a large patient population at high risk of pulmonary complications. MATERIALS AND METHODS The study population consisted of 26 recipients of hematopoietic stem cell transplants who had proven respiratory viral pneumonia. In all cases, thin-section CT scans were obtained before fiberoptic bronchoscopy and bronchoalveolar lavage. The study included only patients in whom bronchoalveolar lavage fluid showed no evidence of organisms other than respiratory viruses. The CT scans were assessed for the presence, extent, and anatomic distribution of ground-glass attenuation, air-space consolidation, nodules, centrilobular branching structures (tree-in-bud), thickening of the bronchovascular bundles, and pleural effusion. RESULTS Areas of ground-glass attenuation were identified in 24 (92%) of 26 patients and were the only finding in eight patients. Multiple nodules, seen in 17 (65%) of 26 patients, measured 3-10 mm in diameter or were larger than 10 mm. The nodules had a centrilobular or random distribution. A tree-in-bud appearance was seen in six of the patients with centrilobular nodules. This pattern had a bilateral distribution and involved mainly the lower lung zones. CT revealed thickening of the bronchovascular bundles in 16 (61%) of the patients. Thickening was bilateral in 14 and unilateral in two patients. Bronchial wall thickening involved the lower lobes in six patients and had a patchy random distribution in the remaining nine patients. Air-space consolidation was present in nine (35%) of the cases. It had a lobular or subsegmental distribution in eight of the patients and a segmental distribution in one patient. Areas of consolidation were randomly distributed throughout the lungs in all cases. Less common findings included bilateral pleural effusion and bronchial dilatation. CONCLUSION Respiratory viral infection is common among adult recipients of hematopoietic stem cell transplants, occurring over a wide time span after transplantation. The presence of respiratory viral infection must be considered in any patient with new respiratory symptoms, fever, or findings at CT such as extensive or patchy areas of ground-glass opacities or a mixture of patterns, most commonly ground-glass attenuation, thickening of the bronchial walls, and multiple small nodules.
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Affiliation(s)
- Tomas Franquet
- Department of Radiology, Hospital de Sant Pau, Universitat Autónoma de Barcelona, Avda Sant Antoni Ma Claret 167, 08025 Barcelona, Spain
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Abstract
BACKGROUND The pneumonia severity index (PSI) accounts for many comorbidities, but not immunosuppression. OBJECTIVES To document the utility of the PSI to predict mortality in immunocompromised patients (IP) with community-acquired pneumonia (CAP). METHODS Charts of 284 patients with immunosuppression and CAP were reviewed, and these patients were compared with a contemporary sample of non-IP with CAP. The ability of the PSI to predict mortality was assessed by using multiple logistic regression. Discrimination of the PSI was studied by using the concordance index. RESULTS Thirty-nine of 284 IP died. Mortality varied according to the etiology of the immunosuppression. Patients with HIV, solid organ transplantation or treatment with immunosuppressive drugs (n=118) had a low in-hospital mortality (4.3%) and were classified as low risk. IP with hematological malignancies, chemotherapy, chest radiation or marrow transplantation (n=166) had a high mortality (20%) and were classified as high risk. Compared with non-IP, low-risk IP had similar PSI-controlled mortality (OR=0.9, P=0.80), whereas high-risk IP had significantly greater mortality (OR=2.8, P<0.0001). The concordance index revealed similar discrimination for the PSI in low-risk IP (0.77) and in non-IP (0.7), but inferior discrimination in high-risk patients (0.6). CONCLUSIONS Patients with CAP and immunosuppression can be divided into low-risk and high-risk groups. The low-risk IP have mortality similar to non-IP and can be risk stratified by using the PSI.
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Affiliation(s)
| | | | - Charles KN Chan
- Correspondence: Dr Charles KN Chan, Toronto General Hospital, Room 9N945, 585 University Avenue, Toronto, Ontario M5G 2C4. Telephone 416-340-3235, fax 416-971-6427, e-mail
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Lim DH, Lee J, Lee HG, Park BB, Peck KR, Oh WS, Ji SH, Lee SH, Park JO, Kim K, Kim WS, Jung CW, Park YS, Im YH, Kang WK, Park K. Pulmonary complications after hematopoietic stem cell transplantation. J Korean Med Sci 2006; 21:406-11. [PMID: 16778380 PMCID: PMC2729942 DOI: 10.3346/jkms.2006.21.3.406] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Despite advanced effective prophylaxes, pulmonary complications still occur in a high proportion of all hematopoietic stem cell recipients, accounting for considerable morbidity and mortality. The aim of our study was to describe the causes, incidences and mortality rates secondary to pulmonary complications and risk factors of such complications following hematopoietic stem cell transplantation (HSCT). We reviewed the medical records of 287 patients who underwent either autologous or allogeneic HSCT for hematologic disorders from February 1996 to October 2003 at Samsung Medical Center (134 autografts, 153 allografts). The timing of pulmonary complications was divided into pre-engraftment, early and late period. The spectrum of pulmonary complications included infectious and non-infectious conditions. 73 of the 287 patients (25.4%) developed pulmonary complications. Among these patients, 40 (54.8%) and 29 (39.7%) had infectious and non-infectious conditions, respectively. The overall mortality rate from pulmonary complications was 28.8%. Allogeneic transplant, grade II-IV acute graft-versus-host disease (GVHD) and extensive chronic GVHD were the risk factors with statistical significance for pulmonary complications after HSCT. The mortality rates from pulmonary complications following HSCT were high, especially those of viral and fungal pneumonia, diffuse alveolar hemorrhage and idiopathic pneumonia syndrome.
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Affiliation(s)
- Do Hyoung Lim
- Division of Hematology/Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jeeyun Lee
- Division of Hematology/Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hong Ghi Lee
- Division of Hematology-Oncology, Department of Internal Medicine, Konkuk University Hospital, Seoul, Korea
| | - Byeong-Bae Park
- Division of Hematology/Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyong Ran Peck
- Division of Infectious Disease, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Won Sup Oh
- Division of Infectious Disease, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sang Hoon Ji
- Division of Hematology/Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Se-Hoon Lee
- Division of Hematology/Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Joon Oh Park
- Division of Hematology/Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kihyun Kim
- Division of Hematology/Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Won Seog Kim
- Division of Hematology/Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Chul Won Jung
- Division of Hematology/Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Young Suk Park
- Division of Hematology/Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Young-Hyuck Im
- Division of Hematology/Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Won Ki Kang
- Division of Hematology/Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Keunchil Park
- Division of Hematology/Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Abstract
Pulmonary infections are among the most common causes of morbidity and mortality worldwide, and contribute substantially to annual medical expenditures in the United States. Despite the availability of antimicrobial agents, pneumonia constitutes the sixth most common cause of death and the number one cause of death from infection. Pneumonia can be particularly life-threatening in the elderly, in individuals who have pre-existing heart and lung conditions, in patients who have suppressed or weakened immunity, and in pregnant women. This article discusses some of the important causes of acute lung infections in normal and immunocompromised hosts. Because there often is considerable overlap, infections are categorized by the host immune status that is most likely to be associated with a particular pathogen.
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Affiliation(s)
| | | | - Charles S. White
- Department of Diagnostic Radiology, University of Maryland School of Medicine, Baltimore, MD, USA
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50
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Rossini F, Terruzzi E, Cammarota S, Morini F, Fumagalli M, Verga L, Elli E, Verga M, Miccolis I, Parma M, Pogliani EM. Cytomegalovirus infection after autologous stem cell transplantation: incidence and outcome in a group of patients undergoing a surveillance program. Transpl Infect Dis 2006; 7:122-5. [PMID: 16390400 DOI: 10.1111/j.1399-3062.2005.000111.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This study was performed to evaluate the incidence, risk factors, and outcome of cytomegalovirus (CMV) infection in autologous stem cell transplantation (ASCT), with the aim of performing preemptive therapy in patients with antigenemia. Starting from 2001, 171 consecutive ASCTs were performed in 136 patients; 102 of these patients were seropositive for CMV at the onset of hematological disease. In all these patients, a CMV pp65 antigenemia assay was determined weekly, starting from the day when the absolute neutrophil count went above 500/microL, and until day 60 after ASCT; subsequently, antigenemia was determined only when a CMV infection was suspected. Among the 136 transplanted patients, 40 (29.4%) presented a positive antigenemia; all of them were seropositive for CMV before ASCT; and no cases of primary infection were seen. The incidence of CMV infection in the seropositive population was 40/102 (39.3%); 6 patients (5 with multiple myeloma and 1 with non-Hodgkin's lymphoma) who received 2 ASCTs developed CMV infections after both transplantations, so that positive antigenemia developed after 46/171 (26.9%) transplantations. First positive antigenemia presented a median of 32 days (range 7-57) after stem cell reinfusion. The median antigenemia level at the first appearance was 2/200,000 (range 1-1000). No significant prognostic factors could be shown. Enteritis was present in 5 patients; 2 of them also had fever, and 1 of them also had thrombocytopenia. In 5 patients fever without any other clinical signs or symptoms was present; 30 patients were asymptomatic. Fourteen patients were treated with anti-CMV drugs. CMV reactivation was successfully treated in all patients, and no patient died from CMV disease.
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Affiliation(s)
- F Rossini
- Hematology Unit, S. Gerardo Hospital, University of Milan, Bicocca, Monza, Italy.
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