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Kumar N, Hussain N, Kumar J, Essandoh MK, Bhatt AM, Awad H, Perez WJ, Whitson BA, Ganapathi AM, Mokadam NA, Gorelik L, Turner K, Iyer MH. Evaluating the Impact of Pulmonary Artery Obstruction After Lung Transplant Surgery: A Systematic Review and Meta-analysis. Transplantation 2021; 105:711-722. [PMID: 33760790 DOI: 10.1097/tp.0000000000003407] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Pulmonary artery obstruction is an uncommon but significant complication after lung transplantation. Although numerous reports have documented its occurrence, the hemodynamic parameters associated with its presentation and diagnostic considerations remain ill-defined. This systematic review summarizes evidence in the literature surrounding pulmonary artery obstruction after lung transplantation surgery. METHODS Databases were searched for all articles and abstracts reporting on pulmonary artery obstruction. Data collected included the number of patients studied, patient characteristics, incidences of pulmonary artery obstruction, and timing and imaging modality used for diagnosis. RESULTS Thirty-four full-text citations were included in this review. The point prevalence of pulmonary artery obstruction was 3.66%. The peak pulmonary artery velocity associated with obstruction was found to be 2.60 ± 0.58 m/s. The diameter of the obstructed pulmonary artery predictive of poor outcomes was noted to be 0.78 ± 0.40 cm. The majority of diagnoses were made in the late postoperative period using pulmonary angiogram and transesophageal echocardiography. Overall, 76% of patients (47 of 62) required emergent procedural reintervention, and 23% of patients (14 of 62) diagnosed with pulmonary artery obstruction died during their hospital stay. CONCLUSIONS This systematic review underscores the importance of identifying pulmonary artery obstruction immediately after lung transplant surgery. The clinical implications of these results warrant the development of identification and management strategies for early detection of irregularities in pulmonary artery anastomosis in lung transplant patients.
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Affiliation(s)
- Nicolas Kumar
- Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH
| | - Nasir Hussain
- Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH
| | - Julia Kumar
- Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH
| | - Michael K Essandoh
- Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH
| | - Amar M Bhatt
- Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH
| | - Hamdy Awad
- Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH
| | - William J Perez
- Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH
| | - Bryan A Whitson
- Division of Cardiac Surgery, Department of Surgery, Wexner Medical Center, The Ohio State University, Columbus, OH
| | - Asvin M Ganapathi
- Division of Cardiac Surgery, Department of Surgery, Wexner Medical Center, The Ohio State University, Columbus, OH
| | - Nahush A Mokadam
- Division of Cardiac Surgery, Department of Surgery, Wexner Medical Center, The Ohio State University, Columbus, OH
| | - Leonid Gorelik
- Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH
| | - Katja Turner
- Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH
| | - Manoj H Iyer
- Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH
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Wareham NE, Nielsen SD, Sørensen SS, Fischer BM. FDG PET/CT for Detection of Infectious Complications Following Solid Organ Transplantation. Semin Nucl Med 2021; 51:321-334. [PMID: 33397588 DOI: 10.1053/j.semnuclmed.2020.12.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Infectious complications after solid organ transplantation (SOT) are often more severe and remain a diagnostic challenge due to vague and atypical clinical presentations. Diagnostic performance of conventional diagnostic tools is frequently inadequate which may lead to delayed diagnosis with the risk of poorer outcomes. This literature review aimed to investigate the current evidence on the use of 18F-fluoro-deoxy-glucose (FDG) Positron Emission Tomography (PET)/computer tomography (CT) in infectious complications after SOT. Based on search in PubMed, Medline, and Cochrane databases, 13 articles and 46 case reports were included. For inclusion, articles were to include data on patients with infectious complications after SOT, and where FDG PET/CT was part of the work-up. Final searches were conducted on 02 September 2020. Overall, in the absence of initial diagnostic clues, FDG PET/CT should be considered as the imaging technique of choice as it may guide further investigations and eventually reveal the diagnosis in most of the patients. However, the available literature of the role of FDG PET/CT in SOT recipients with infectious complications is scarce and well-designed prospective studies including control groups are warranted to establish the role of FDG PET/C/ in SOT recipients. The main drawback of FDG PET/CT is the lack of ability to differentiate between cancer and infectious diseases which are both highly prevalent in this patient group. Accordingly, the main reasons for "false" results of FDG PET/CT is the misdiagnosis of cancer in benign inflammatory or infectious processes, information which nonetheless can be useful.
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Affiliation(s)
- Neval E Wareham
- Department of Infectious Diseases, University Hospital of Copenhagen, Rigshospitalet, Copenhagen, Denmark.
| | - Susanne Dam Nielsen
- Department of Infectious Diseases, University Hospital of Copenhagen, Rigshospitalet, Copenhagen, Denmark
| | - Søren Schwartz Sørensen
- Department of Nephrology, University Hospital of Copenhagen, Rigshospitalet, Copenhagen, Denmark
| | - Barbara Malene Fischer
- The PET Centre, Guy's & St Thomas Hospital, School of Biomedical Engineering and Imaging Sciences, Kings College London, St Thomas' Hospital, London
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