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Lytzen AA, Helt TW, Christensen J, Lund TK, Kalhauge A, Rönsholt FF, Podlekavera D, Arndal E, Lebech A, Hanel B, Katzenstein TL, Berg RMG, Mortensen J. Pulmonary diffusing capacity for carbon monoxide and nitric oxide after COVID-19: A prospective cohort study (the SECURe study). Exp Physiol 2024; 109:652-661. [PMID: 38532277 PMCID: PMC11061629 DOI: 10.1113/ep091757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 02/27/2024] [Indexed: 03/28/2024]
Abstract
Many patients exhibit persistently reduced pulmonary diffusing capacity after coronavirus disease 2019 (COVID-19). In this study, dual test gas diffusing capacity for carbon monoxide and nitric oxide (DL,CO,NO) metrics and their relationship to disease severity and physical performance were examined in patients who previously had COVID-19. An initial cohort of 148 patients diagnosed with COVID-19 of all severities between March 2020 and March 2021 had a DL,CO,NO measurement performed using the single-breath method at 5.7 months follow-up. All patients with at least one abnormal DL,CO,NO metric (n = 87) were revaluated at 12.5 months follow-up. The DL,CO,NO was used to provide the pulmonary diffusing capacity for nitric oxide (DL,NO), the pulmonary diffusing capacity for carbon monoxide (DL,CO,5s), the alveolar-capillary membrane diffusing capacity and the pulmonary capillary blood volume. At both 5.7 and 12.5 months, physical performance was assessed using a 30 s sit-to-stand test and the 6 min walk test. Approximately 60% of patients exhibited a severity-dependent decline in at least one DL,CO,NO metric at 5.7 months follow-up. At 12.5 months, both DL,NO and DL,CO,5s had returned towards normal but still remained abnormal in two-thirds of the patients. Concurrently, improvements in physical performance were observed, but with no apparent relationship to any DL,CO,NO metric. The severity-dependent decline in DL,NO and DL,CO observed at 5.7 months after COVID-19 appears to be reduced consistently at 12.5 months follow-up in the majority of patients, despite marked improvements in physical performance.
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Affiliation(s)
- Anna Agnes Lytzen
- Centre for Physical Activity ResearchCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
| | - Thora Wesenberg Helt
- Department of Clinical Physiology and Nuclear MedicineCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
| | - Jan Christensen
- Department of Occupational Therapy and PhysiotherapyCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
| | - Thomas Kromann Lund
- Department of Cardiology, Section for Lung TransplantationCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
| | - Anna Kalhauge
- Department of RadiologyCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
| | | | - Daria Podlekavera
- Department of Respiratory Medicine and Infectious DiseasesCopenhagen University Hospital—Bispebjerg HospitalCopenhagenDenmark
| | - Elisabeth Arndal
- Department of OtorhinolaryngologyCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
| | - Anne‐Mette Lebech
- Department of Infectious DiseasesCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
| | - Birgitte Hanel
- Department of Clinical Physiology and Nuclear MedicineCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
| | - Terese L. Katzenstein
- Department of Infectious DiseasesCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
| | - Ronan M. G. Berg
- Centre for Physical Activity ResearchCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
- Department of Clinical Physiology and Nuclear MedicineCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
- Department of Biomedical Sciences, Faculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
- Neurovascular Research Laboratory, Faculty of Life Sciences and EducationUniversity of South WalesPontypriddUK
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear MedicineCopenhagen University Hospital—RigshospitaletCopenhagenDenmark
- Department of MedicineThe National HospitalTorshavnFaroe Islands
- Department of Clinical Medicine, Faculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
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Hartmann JP, Lassen ML, Mohammad M, Iepsen UW, Mortensen J, Hasbak P, Berg RMG. Pulmonary blood volume measured by 82Rb-PET in patients with chronic obstructive pulmonary disease: a retrospective cohort study. J Appl Physiol (1985) 2024. [PMID: 38602000 DOI: 10.1152/japplphysiol.00058.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 04/03/2024] [Indexed: 04/12/2024] Open
Abstract
In patients with chronic obstructive pulmonary disease (COPD), pulmonary vascular dysfunction and destruction are observable before the onset of detectable emphysema, but it is unknown whether this is associated with central hypovolemia. We investigated if COPD patients have reduced pulmonary blood volume (PBV) evaluated by 82Rb-positron emission tomography(PET) at rest and during adenosine-induced hyperemia. This single-center retrospective cohort study assessed 6301 82Rb-PET myocardial perfusion imaging (MPI) examinations performed over a 6-year period. We compared 77 COPD patients with 44 healthy kidney donors (controls). Cardiac output (Q̇) and mean 82Rb bolus transit time (MBTT) were used to calculate PBV. Q̇ was similar at rest (COPD: 3649 ± 120 mL vs. control: 3891 ± 160 mL, p=0.368) but lower in COPD patients compared to controls during adenosine infusion (COPD: 5432 ± 124 mL vs. control: 6185 ± 161 mL, p < 0.050). MBTT was shorter in COPD patients compared to controls at rest (COPD: 8.7 ± 0.28 seconds vs. control: 11.4 ± 0.37 seconds, p < 0.001) and during adenosine infusion (COPD: 9.2 ± 0.28 seconds vs. control: 10.2 ± 0.37 seconds, p < 0.014). PBV was lower in COPD patients, even after adjustment for body surface area, sex, and age at rest (COPD: 530 (29) mL vs. 708 (38) mL, p < 0.001) and during adenosine infusion (COPD: 826 (29) mL vs. 1044 (38) mL, p<0.001). In conclusion, patients with COPD show evidence of central hypovolemia, but it remains to be determined whether this has any diagnostic or prognostic impact.
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Affiliation(s)
- Jacob Peter Hartmann
- Department of Clinical Physiology and Nuclear Medicine, Rigshospitalet, Copenhagen Ø, Denmark
| | | | - Milan Mohammad
- Department of Clinical Physiology and Nuclear Medicine, Rigshospitalet, Denmark
| | | | - Jann Mortensen
- Department of Clinical Physiology and Nuclear Medicine, Rigshospitalet, Copenhagen, Denmark
| | - Philip Hasbak
- Department of Clinical Physiology and Nuclear Medicine, Rigshospitalet, Denmark
| | - Ronan M G Berg
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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de Nijs R, Berg RMG, Lindskov Hansen S, Mortensen J. Ventilation perfusion functional difference images in lung SPECT: A linear and symmetrical scale as an alternative to the ventilation perfusion ratio. Phys Med 2024; 119:103306. [PMID: 38335743 DOI: 10.1016/j.ejmp.2024.103306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
PURPOSE Ventilation Perfusion SPECT is important in the diagnostics of e.g. pulmonary embolism and chronic obstructive pulmonary disease. Classical and reverse mismatched defects can be identified by utilizing the ventilation-perfusion ratio. Unfortunately, this ratio is only linear in the ventilation, the scale is not symmetrical regarding classical and reversed mismatches and small perfusion values give rise to artifacts. The ventilation-perfusion (VQ) difference is developed as an alternative. METHODS For both VQ-ratio and VQ-difference a scaling factor for the perfusion is computed, so that voxels with matched ventilation and perfusion (on average) yield zero signal. The relative VQ-difference is calculated by scaling with the summed VQ-signal in each voxel. The scaled VQ-difference is calculated by scaling with the global maximum of this sum. RESULTS The relative and scaled differences have a scale from -1 (perfusion only) to + 1 (ventilation only). Image quality of relative VQ-difference and VQ-ratio images is hampered by artifacts from areas with both low perfusion and low ventilation. Ratio and differences have been investigated in ten patients and are shown for three patients (one without defects). Clinical thresholds for the difference images are derived resulting in color maps of relevant (reversed) mismatches with a (reciprocal) ratio larger than two. CONCLUSIONS The relative ventilation-perfusion difference is a methodological improvement on the ventilation-perfusion ratio, because it has a symmetrical scale and is bound on a closed domain. A better diagnostic value is expected by utilizing the scaled difference, which represents functional difference instead of relative difference.
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Affiliation(s)
- Robin de Nijs
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.
| | - Ronan M G Berg
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Center for Physical Activity Research, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Sofie Lindskov Hansen
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Department of Medicine, The National Hospital, Torshavn, Faroe Islands
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Helt TW, Johansen LS, Faurholt-Jepsen D, Larsen VA, Borgwardt L, Mortensen J, Brix Christensen V. Brain imaging in children with neonatal cholestatic liver disease: A systematic review. Acta Paediatr 2024. [PMID: 38406880 DOI: 10.1111/apa.17177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 02/08/2024] [Accepted: 02/19/2024] [Indexed: 02/27/2024]
Abstract
AIM To determine if children with neonatal cholestatic liver disease had concurrent and later findings on brain imaging studies that could be attributed and the cholestasis to contribute to the understanding of the impaired neuropsychological development. METHODS Ovid MEDLINE and EMBASE were searched on July 21, 2022, and updated on March 26, 2023. Studies with children under 18 years of age with neonatal cholestasis and a brain scan at the time of diagnosis or later in life were included. Excluded studies were non-English, non-human, reviews or conference abstracts. Data were extracted on demographics, brain imaging findings, treatment and outcome. The results were summarised by disease categories. Risk of bias was assessed using JBI critical appraisal tools. RESULTS The search yielded 12 011 reports, of which 1261 underwent full text review and 89 were eligible for inclusion. Haemorrhage was the most common finding, especially in children with bile duct obstruction, including biliary atresia. Some findings were resolved after liver transplantation. CONCLUSION Children with neonatal cholestasis had changes in brain imaging, which might play a role in impaired neuropsychological development, but longitudinal clinical research with structured assessment is needed to better qualify the aetiology of the impairment.
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Affiliation(s)
- Thora Wesenberg Helt
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital, Rigshospitalet, Denmark
| | | | - Daniel Faurholt-Jepsen
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Vibeke Andrée Larsen
- Department of Diagnostic Radiology, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - Lise Borgwardt
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital, Rigshospitalet, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Vibeke Brix Christensen
- Department of Paediatric Surgery, Copenhagen University Hospital, Rigshospitalet, Denmark
- Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Denmark
- Department of Comparative Pediatrics and Nutrition, University of Copenhagen, Copenhagen, Denmark
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Nymand SB, Hartmann JP, Hartmeyer HL, Rasmussen IE, Andersen AB, Mohammad M, Al-Atabi S, Hanel B, Iepsen UW, Mortensen J, Berg RMG. Dual Test Gas Pulmonary Diffusing Capacity Measurement During Exercise in Humans Using the Single-Breath Method. J Vis Exp 2024. [PMID: 38372367 DOI: 10.3791/65871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024] Open
Abstract
The combined single-breath measurement of the diffusing capacity of carbon monoxide (DL,CO) and nitric oxide (DL,NO) is a useful technique to measure pulmonary alveolar-capillary reserve in both healthy and patient populations. The measurement provides an estimate of the participant's ability to recruit and distend pulmonary capillaries. The method has recently been reported to exhibit a high test-retest reliability in healthy volunteers during exercise of light to moderate intensity. Of note, this technique permits up to 12 repeated maneuvers and only requires a single breath with a relatively short breath-hold time of 5 s. Representative data are provided showing the gradual changes in DL,NO and DL,CO from rest to exercise at increasing intensities of up to 60% of maximal workload. The measurement of diffusing capacity and evaluation of alveolar-capillary reserve is a useful tool to evaluate the lung's ability to respond to exercise both in the healthy population as well as in patient populations such as those with chronic lung disease.
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Affiliation(s)
- Stine B Nymand
- Centre for Physical Activity Research, Copenhagen University Hospital - Rigshospitalet
| | - Jacob Peter Hartmann
- Centre for Physical Activity Research, Copenhagen University Hospital - Rigshospitalet; Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen; Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital - Rigshospitalet
| | | | - Iben E Rasmussen
- Centre for Physical Activity Research, Copenhagen University Hospital - Rigshospitalet
| | - Amalie Bach Andersen
- Centre for Physical Activity Research, Copenhagen University Hospital - Rigshospitalet
| | - Milan Mohammad
- Centre for Physical Activity Research, Copenhagen University Hospital - Rigshospitalet
| | - Susan Al-Atabi
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital - Rigshospitalet
| | - Birgitte Hanel
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital - Rigshospitalet
| | - Ulrik Winning Iepsen
- Centre for Physical Activity Research, Copenhagen University Hospital - Rigshospitalet; Department of Anesthesiology and Intensive Care, Hvidovre Hospital
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital - Rigshospitalet; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen
| | - Ronan M G Berg
- Centre for Physical Activity Research, Copenhagen University Hospital - Rigshospitalet; Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen; Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital - Rigshospitalet; Neurovascular Research Laboratory, Faculty of Life Sciences and Education, University of South Wales;
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Lund A, Soldath P, Nodin E, Hansen HJ, Perch M, Jensen K, Hornbech K, Kalhauge A, Mortensen J, Petersen RH. Predictors of reoperation after lung volume reduction surgery. Surg Endosc 2024; 38:679-687. [PMID: 38017156 PMCID: PMC10830766 DOI: 10.1007/s00464-023-10559-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/22/2023] [Indexed: 11/30/2023]
Abstract
OBJECTIVES Lung volume reduction surgery (LVRS) has proven an effective treatment for emphysema, by decreasing hyperinflation and improving lung function, activity level and reducing dyspnoea. However, postoperative air leak is an important complication, often leading to reoperation. Our aim was to analyse reoperations after LVRS and identify potential predictors. METHODS Consecutive single-centre unilateral VATS LVRS performed from 2017 to 2022 were included. Typically, 3-5 minor resections were made using vascular magazines without buttressing. Data were obtained from an institutional database and analysed. Multivariable logistic regression was used to identify predictors of reoperation. Number and location of injuries were registered. RESULTS In total, 191 patients were included, 25 were reoperated (13%). In 21 patients, the indication for reoperation was substantial air leak, 3 patients bleeding and 1 patient empyema. Length of stay (LOS) was 21 (11-33) vs. 5 days (3-11), respectively. Only 3 injuries were in the stapler line, 13 within < 2cm and 15 injuries were in another site. Multivariable logistic regression analysis showed that decreasing DLCO increased risk of reoperation, OR 1.1 (1.03, 1.18, P = 0.005). Resections in only one lobe, compared to resections in multiple lobes, were also a risk factor OR 3.10 (1.17, 9.32, P = 0.03). Patients undergoing reoperation had significantly increased 30-day mortality, OR 5.52 (1.03, 26.69, P = 0.02). CONCLUSIONS Our incidence of reoperation after LVRS was 13% leading to prolonged LOS and increased 30-day mortality. Low DLCO and resections in a single lobe were significant predictors of reoperation. The air leak was usually not localized in the stapler line.
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Affiliation(s)
- Alberte Lund
- Department of Cardiothoracic surgery, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark.
| | - Patrick Soldath
- Department of Cardiothoracic surgery, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Erika Nodin
- Department of Cardiothoracic surgery, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Henrik Jessen Hansen
- Department of Cardiothoracic surgery, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Michael Perch
- Department of Cardiology, Section for Lung Transplantation and Respiratory Medicine, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kristine Jensen
- Department of Cardiology, Section for Lung Transplantation and Respiratory Medicine, Rigshospitalet, Copenhagen, Denmark
| | - Kåre Hornbech
- Department of Cardiothoracic surgery, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Anna Kalhauge
- Department of Diagnostic Radiology, Rigshospitalet, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - René Horsleben Petersen
- Department of Cardiothoracic surgery, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Marthin JK, Nielsen KG, Mortensen J. Quantitative 99mTc-albumin colloid nasal mucociliary clearance as an outcome in primary ciliary dyskinesia. ERJ Open Res 2023; 9:00345-2023. [PMID: 37701364 PMCID: PMC10493710 DOI: 10.1183/23120541.00345-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 06/05/2023] [Indexed: 09/14/2023] Open
Abstract
Background Primary ciliary dyskinesia (PCD) is an inherited disorder in which dyskinetic cilia cause impaired mucociliary clearance of upper and lower airways. Airway ciliary movement can be indirectly tested in vivo after administration of a radiolabelled tracer to the lower airways for assessment of pulmonary mucociliary clearance or to the nose for assessing nasal mucociliary clearance (NMC). With this study, we investigated NMC as a quantifiable study outcome parameter in patients with PCD. Material and methods This single centre proof-of-concept study on NMC velocity investigated patients with PCD across different genotypes and nasal nitric oxide (nasal NO) levels. Healthy controls were used for comparison. NMC was determined as velocity in mm·min-1 of a nasally applied 99mTc-albumin colloid tracer. Using a gamma camera, repeated dynamic series of images each lasting 30 s were acquired during a 10-minute period and digitally stored. Results NMC velocity was investigated in seven patients with PCD (aged 9-31 years) and five adult healthy controls. Mean NMC velocity in healthy controls (8.5 mm·min-1) was significantly higher compared with people with PCD (0.00 mm·min-1, p<0.0001). NMC was completely absent in all included patients with PCD across different PCD genotypes and regardless of nasal NO values. The success rate of the test was 100% in both groups. Conclusion NMC velocity discriminated highly significantly between patients with PCD and healthy controls. We suggest here a fast and feasible set up for NMC measurements that is easily applicable for any clinical trial involving PCD medication aimed for the nasal compartment, a step before or parallel to conducting clinical trials investigating whole-lung ciliary function in PCD.
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Affiliation(s)
- June K. Marthin
- Danish PCD Centre, Paediatric Pulmonary Service, ERN Accredited, Department of Paediatric and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Kim G. Nielsen
- Danish PCD Centre, Paediatric Pulmonary Service, ERN Accredited, Department of Paediatric and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Shared senior authorship
| | - Jann Mortensen
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Medicine, The National Hospital, Torshavn, The Faroe Islands
- Shared senior authorship
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Dam G, Grønbæk H, Sundlöv A, Botling J, Sundin A, Petersen RH, Welin S, Evensen ET, Sorbye H, Tabaksblat E, Arveschoug AK, Mortensen J, Kjaer A, Knigge U, Tiensuu Janson E, Langer SW. Nordic 2023 guidelines for the diagnosis and treatment of lung neuroendocrine neoplasms. Acta Oncol 2023:1-7. [PMID: 37194281 DOI: 10.1080/0284186x.2023.2212411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Lung neuroendocrine neoplasms (NEN) are a heterogeneous population of neoplasms with different pathology, clinical behavior, and prognosis compared to the more common lung cancers. The diagnostic work-up and treatment of patients with lung- NEN has undergone major recent advances and new methods are currently being introduced into the clinic. These Nordic guidelines summarize and update the Nordic Neuroendocrine Tumor Group's current view on how to diagnose and treat lung NEN-patients and are meant to be useful in the daily practice for clinicians handling these patients. This review reflects our view of the current state of the art of diagnosis and treatment of patients with lung-NEN. Small cell lung carcinoma (SCLC) is not included in these guidelines.
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Affiliation(s)
- Gitte Dam
- Department of Hepatology & Gastroenterology, ENETS Center of Excellence, Aarhus University Hospital, & Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Henning Grønbæk
- Department of Hepatology & Gastroenterology, ENETS Center of Excellence, Aarhus University Hospital, & Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Anna Sundlöv
- Division of Oncology, Department of Clinical Sciences Lund, Lund University, Sweden
| | - Johan Botling
- Department of Immunology Genetics and Pathology, ENETS Center of Excellence, Uppsala University, Uppsala, Sweden
| | - Anders Sundin
- Department of Surgical Sciences, Radiology & Molecular Imaging, ENETS Center of Excellence, Uppsala University, Uppsala, Sweden
| | - Rene Horsleben Petersen
- Department of Cardiothoracic Surgery, ENETS Center of Excellence, Copenhagen University Hospital, Rigshospitalet, Denmark
- Department of Clinical Medicine, University of Copenhagen, Denmark
| | - Staffan Welin
- Department of Medical Sciences, Endocrine Oncology Unit, ENETS Center of Excellence, Uppsala University, Uppsala, Sweden
| | - Espen-Thiis Evensen
- Department for Organ Transplantation, Oslo University Hospital, ENETS Center of Excellence, Rikshospitalet, Oslo, Norway
| | - Halfdan Sorbye
- Department of Oncology, Haukeland University Hospital, and Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Elizaveta Tabaksblat
- Department of Oncology, ENETS Center of Excellence, Aarhus University Hospital, Aarhus, Denmark
| | - Anne Kirstine Arveschoug
- Department of Nuclear Medicine & PET Center, Aarhus University Hospital, ENETS Center of Excellence, Aarhus, Denmark
| | - Jann Mortensen
- Department. of Clinical Physiology and Nuclear Medicine, ENETS Center of Excellence & Cluster for Molecular Imaging, Copenhagen University Hospital-Rigshospitalet & Department of Biomedical Sciences, University of Copenhagen, Denmark
| | - Andreas Kjaer
- Department. of Clinical Physiology and Nuclear Medicine, ENETS Center of Excellence & Cluster for Molecular Imaging, Copenhagen University Hospital-Rigshospitalet & Department of Biomedical Sciences, University of Copenhagen, Denmark
| | - Ulrich Knigge
- Departments of Gastrointestinal Surgery and Clinical Endocrinology, ENETS Center of Excellence, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - Eva Tiensuu Janson
- Department of Medical Sciences, Endocrine Oncology Unit, ENETS Center of Excellence, Uppsala University, Uppsala, Sweden
| | - Seppo W Langer
- Department of Oncology, ENETS Center of Excellence, Copenhagen University Hospital, Rigshospitalet, and Dept. of Clinical Medicine, University of Copenhagen, Denmark
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Christensen A, Wessel I, Charabi BW, Juhl K, Kiss K, Lelkaitis G, Mortensen J, Kjaer A, von Buchwald C, Tvedskov JF. Diagnostic accuracy of combined optical- and radio-guided SNB for neck staging of oral squamous cell carcinoma lesions in the anterior oral cavity. Eur Arch Otorhinolaryngol 2023; 280:3393-3403. [PMID: 37010601 DOI: 10.1007/s00405-023-07939-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/21/2023] [Indexed: 04/04/2023]
Abstract
PURPOSE The purpose was to investigate the diagnostic performance of bimodal optical and radio-guided sentinel node biopsy (SNB) for oral squamous cell carcinoma (OSCC) sub-sites in the anterior oral cavity. METHODS Prospective study of 50 consecutive patients with cN0 OSCC scheduled for SNB was injected with the tracer complex Tc99m:ICG:Nacocoll. A near-infrared camera was applied for optical SN detection. Endpoints were modality for intraoperative SN detection and false omission rate at follow-up. RESULTS In all patients, a SN could be detected. In 12/50 (24%) of cases, the SPECT/CT showed no focus in level 1, but intraoperatively a SN in level 1 was optically detected. In 22/50 cases (44%), an additional SN was identified only due to the optical imaging. At follow-up, the false omission rate was 0%. CONCLUSION Optical imaging appears to be an effective tool to allow real-time SN identification comprising level 1 unaffected by possible interference of radiation site from the injection.
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Affiliation(s)
- Anders Christensen
- Department of Otolaryngology, Head & Neck Surgery and Audiology, 6033, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark.
| | - Irene Wessel
- Department of Otolaryngology, Head & Neck Surgery and Audiology, 6033, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Birgitte Wittenborg Charabi
- Department of Otolaryngology, Head & Neck Surgery and Audiology, 6033, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Karina Juhl
- Department of Clinical Physiology and Nuclear Medicine & Cluster for Molecular Imaging & Department of Biomedical Sciences, Copenhagen University Hospital, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Katalin Kiss
- Department of Pathology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Giedrius Lelkaitis
- Department of Pathology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear Medicine & Cluster for Molecular Imaging & Department of Biomedical Sciences, Copenhagen University Hospital, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Andreas Kjaer
- Department of Clinical Physiology and Nuclear Medicine & Cluster for Molecular Imaging & Department of Biomedical Sciences, Copenhagen University Hospital, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Christian von Buchwald
- Department of Otolaryngology, Head & Neck Surgery and Audiology, 6033, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Jesper Filtenborg Tvedskov
- Department of Otolaryngology, Head & Neck Surgery and Audiology, 6033, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark
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Desbordes P, De Vos M, Maes J, de Jongh F, Sylvester K, Vogelmeier CF, Dinh-Xuan AT, Mortensen J, Janssens W, Topalovic M. Implications of the new ERS/ATS standards on the interpretation of lung function tests. Eur Respir J 2023; 61:13993003.02348-2022. [PMID: 36858442 DOI: 10.1183/13993003.02348-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 02/20/2023] [Indexed: 03/03/2023]
Affiliation(s)
| | - Maarten De Vos
- ArtiQ NV, Leuven, Belgium
- Department of Electrical Engineering (ESAT) and Department of Development & Regeneration, KU Leuven, Leuven, Belgium
| | | | | | - Karl Sylvester
- Respiratory Physiology, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
| | - Claus Franz Vogelmeier
- Department of Medicine, Pulmonary and Critical Care Medicine, University Medical Center Giessen and Marburg, Marburg, Germany
| | - Anh Tuan Dinh-Xuan
- Service de Physiologie-Explorations Fonctionnelles, Assistance Publique-Hôpitaux de Paris (APHP), Hôpital Cochin, Université Paris Cité, Paris, France
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Wim Janssens
- Respiratory Medicine, University Hospital Leuven, Chronic Diseases, Metabolism and Ageing, KU Leuven, Leuven, Belgium
- These authors contributed equally to this work
| | - Marko Topalovic
- ArtiQ NV, Leuven, Belgium
- These authors contributed equally to this work
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11
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Madsen AC, Thomsen RS, Nymand SB, Hartmann JP, Rasmussen IE, Mohammad M, Skovgaard LT, Hanel B, Jønck S, Iepsen UW, Chistensen RH, Mortensen J, Berg RMG. Pulmonary diffusing capacity to nitric oxide and carbon monoxide during exercise and in the supine position: a test-retest reliability study. Exp Physiol 2023; 108:307-317. [PMID: 36621806 PMCID: PMC10103891 DOI: 10.1113/ep090883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 12/05/2022] [Indexed: 01/10/2023]
Abstract
NEW FINDINGS What is the central question in this study? How reliable is the combined measurement of the pulmonary diffusing capacity to carbon monoxide and nitric oxide (DLCO/NO ) during exercise and in the resting supine position, respectively? What is the main finding and its importance? The DLCO/NO technique is reliable with a very low day-to-day variability both during exercise and in the resting supine position, and may thus provide a useful physiological outcome that reflects the alveolar-capillary reserve in humans. ABSTRACT DLCO/NO , the combined single-breath measurement of the diffusing capacity to carbon monoxide (DLCO ) and nitric oxide (DLNO ) measured either during exercise or in the resting supine position may be a useful physiological measure of alveolar-capillary reserve. In the present study, we investigated the between-day test-retest reliability of DLCO/NO -based metrics. Twenty healthy volunteers (10 males, 10 females; mean age 25 (SD 2) years) were randomized to repeated DLCO/NO measurements during upright rest followed by either exercise (n = 11) or resting in the supine position (n = 9). The measurements were repeated within 7 days. The smallest real difference (SRD), defined as the 95% confidence limit of the standard error of measurement (SEM), the coefficient of variance (CV), and intraclass correlation coefficients were used to assess test-retest reliability. SRD for DLNO was higher during upright rest (5.4 (95% CI: 4.1, 7.5) mmol/(min kPa)) than during exercise (2.7 (95% CI: 2.0, 3.9) mmol/(min kPa)) and in the supine position (3.0 (95% CI: 2.1, 4.8) mmol/(min kPa)). SRD for DLCOc was similar between conditions. CV values for DLNO were slightly lower than for DLCOc both during exercise (1.5 (95% CI: 1.2, 1.7) vs. 3.8 (95% CI: 3.2, 4.3)%) and in the supine position (2.2 (95% CI: 1.8, 2.5) vs. 4.8 (95% CI: 3.8, 5.4)%). DLNO increased by 12.3 (95% CI: 11.1, 13.4) and DLCOc by 3.3 (95% CI: 2.9, 3.7) mmol/(min kPa) from upright rest to exercise. The DLCO/NO technique provides reliable indices of alveolar-capillary reserve, both during exercise and in the supine position.
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Affiliation(s)
- Anna Christrup Madsen
- Centre for Physical Activity ResearchCopenhagen University Hospital – RigshospitaletCopenhagenDenmark
| | - Rie Skovly Thomsen
- Centre for Physical Activity ResearchCopenhagen University Hospital – RigshospitaletCopenhagenDenmark
| | - Stine B. Nymand
- Centre for Physical Activity ResearchCopenhagen University Hospital – RigshospitaletCopenhagenDenmark
- Department of Biomedical SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Jacob Peter Hartmann
- Centre for Physical Activity ResearchCopenhagen University Hospital – RigshospitaletCopenhagenDenmark
- Department of Biomedical SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
- Department of Clinical Physiology and Nuclear MedicineCopenhagen University Hospital – RigshospitaletCopenhagenDenmark
| | - Iben E. Rasmussen
- Centre for Physical Activity ResearchCopenhagen University Hospital – RigshospitaletCopenhagenDenmark
| | - Milan Mohammad
- Department of Biomedical SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Lene Theil Skovgaard
- Department of BiostatisticsFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Birgitte Hanel
- Department of Clinical Physiology and Nuclear MedicineCopenhagen University Hospital – RigshospitaletCopenhagenDenmark
| | - Simon Jønck
- Centre for Physical Activity ResearchCopenhagen University Hospital – RigshospitaletCopenhagenDenmark
| | - Ulrik Winning Iepsen
- Centre for Physical Activity ResearchCopenhagen University Hospital – RigshospitaletCopenhagenDenmark
- Department of Anaesthesiology and Intensive CareCopenhagen University Hospital – Bispebjerg HospitalCopenhagenDenmark
- Department of Clinical MedicineFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Regitse H. Chistensen
- Centre for Physical Activity ResearchCopenhagen University Hospital – RigshospitaletCopenhagenDenmark
- Department of CardiologyCopenhagen University Hospital – Herlev and Gentofte HospitalsCopenhagenDenmark
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear MedicineCopenhagen University Hospital – RigshospitaletCopenhagenDenmark
- Department of Clinical MedicineFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Ronan M. G. Berg
- Centre for Physical Activity ResearchCopenhagen University Hospital – RigshospitaletCopenhagenDenmark
- Department of Biomedical SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
- Department of Clinical Physiology and Nuclear MedicineCopenhagen University Hospital – RigshospitaletCopenhagenDenmark
- Neurovascular Research LaboratoryFaculty of Life Sciences and EducationUniversity of South WalesPontypriddUK
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12
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Blomberg A, Mortensen J, Weihe P, Grandjean P. Correction: Bone mass density following developmental exposures to perfluoroalkyl substances (PFAS): a longitudinal cohort study. Environ Health 2023; 22:15. [PMID: 36710357 PMCID: PMC9885619 DOI: 10.1186/s12940-023-00968-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Affiliation(s)
- Annelise Blomberg
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
- Division of Occupational and Environmental Medicine, Lund University, Scheelevägen 2, 22363, Lund, Sweden.
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear Medicine, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Medicine, The Faroese National Hospital, Torshavn, Faroe Islands
| | - Pal Weihe
- Department of Occupational Medicine and Public Health, Faroese Hospital System, Torshavn, Faroe Islands
- Center of Health Science, University of the Faroe Islands, Torshavn, Faroe Islands
| | - Philippe Grandjean
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Environmental Medicine, University of Southern Denmark, Odense, Denmark
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Lindnér C, Jensen K, Mortensen J, Kalhauge A, Jessen-Hansen H, Perch M. Severe Emphysema Treated with Bilateral Lung Sealant: A Case Series with Long-Term Follow-Up. Biomed Hub 2023; 8:46-53. [PMID: 37405232 PMCID: PMC10314992 DOI: 10.1159/000530490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 03/24/2023] [Indexed: 07/06/2023] Open
Abstract
Bronchoscopic lung volume reduction (BLVR) for emphysematous hyperinflation has evolved during the last two decades as an alternative to lung volume reduction surgery (LVRS) with lower morbidity and mortality. Emphysematous lung sealant (ELS) is a form of BLVR specifically aimed at patients with collateral ventilation (CV), shown to have favorable outcomes in lung function up to two years. This case series presents four emphysema patients treated bilaterally with ELS, with a follow-up period up to six years. Two of the patients had previously undergone LVRS and BLVR with valves. Following ELS installment, all patients showed positive changes in spirometric values, with varying durability between one and five years. Three patients reported an overall improvement in subjective symptoms after treatment as measured by the COPD Assessment Test (CAT), one of which had lasting improvement even after five years (CAT from 20 to 13). Two of the four treated patients suffered recurrent respiratory exacerbations and pneumonias requiring hospitalization. They both went on to receive lung transplantation within one and three years. This report concludes that ELS has a meaningful effect on reducing hyperinflation in emphysema with improving pulmonary function tests, and relieving symptoms of dyspnea for up to five years. Unfortunately, some patients develop complications leading to recurrent exacerbations. We were not able to show a survival benefit with ELS treatment. This article highlights the need for further research in order to predict who will benefit from this treatment and how to handle CV-positive patients.
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Affiliation(s)
- Cecilia Lindnér
- Department of Thoracic and Cardiovascular Surgery, Heart Center, Copenhagen, Denmark
| | - Kristine Jensen
- Department of Cardiology, Section for Lung Transplantation and Respiratory Medicine, Heart Center, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear Medicine, Diagnostic Center, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Anna Kalhauge
- Department of Radiology, Diagnostic Center, All at Rigshospitalet, University Hospital Copenhagen, Copenhagen, Denmark
| | - Henrik Jessen-Hansen
- Department of Thoracic and Cardiovascular Surgery, Heart Center, Copenhagen, Denmark
| | - Michael Perch
- Department of Cardiology, Section for Lung Transplantation and Respiratory Medicine, Heart Center, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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De Nijs R, Berg RMG, Hansen SL, Mortensen J. VENTILATION PERFUSION FUNCTIONAL DIFFERENCE IMAGES IN LUNG SPECT: A QUANTITATIVE IMPROVEMENT ON VENTILATION PERFUSION RATIO. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)02452-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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15
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Blomberg A, Mortensen J, Weihe P, Grandjean P. Bone mass density following developmental exposures to perfluoroalkyl substances (PFAS): a longitudinal cohort study. Environ Health 2022; 21:113. [PMID: 36402982 PMCID: PMC9675242 DOI: 10.1186/s12940-022-00929-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Environmental exposures to industrial chemicals, including perfluoroalkyl substances (PFAS), may play a role in bone development and future risk of osteoporosis. However, as prospective evidence is limited, the role of developmental PFAS exposures in bone density changes in childhood is unclear. The objective of this study was to estimate associations between serum-PFAS concentrations measured in infancy and early childhood and areal bone mineral density (aBMD) measured at age 9 years in a birth cohort of children from the Faroe Islands. METHODS We prospectively measured concentrations of five PFAS in cord serum and serum collected at 18 months, 5 years and 9 years, and conducted whole-body DXA scans at the 9-year clinical visit. Our study included 366 mother-child pairs with DXA scans and at least one PFAS measurement. We estimated covariate-adjusted associations of individual PFAS concentrations with age-, sex- and height-adjusted aBMD z-scores using multivariable regression models and applied formal mediation analysis to estimate the possible impact of by several measures of body composition. We also evaluated whether associations were modified by child sex. RESULTS We found PFAS exposures in childhood to be negatively associated with aBMD z-scores, with the strongest association seen for perfluorononanoic acid (PFNA) at age 5 years. A doubling in age-5 PFNA was associated with a 0.15 decrease in aBMD z-score (95% CI: - 0.26, - 0.039). The PFNA-aBMD association was significantly stronger in males than females, although effect modification by sex was not significant for other PFAS exposures. Results from the mediation analysis suggested that any potential associations between aBMD and 18-month PFAS concentrations may be mediated by total body fat and BMI, although most estimated total effects for PFAS exposures at age 18 months were non-significant. PFAS exposures at age 9 were not associated with age-9 aBMD z-scores. CONCLUSIONS The PFAS-aBMD associations identified in this and previous studies suggest that bone may be a target tissue for PFAS. Pediatric bone density has been demonstrated to strongly track through young adulthood and possibly beyond; therefore, these prospective results may have important public health implications.
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Affiliation(s)
- Annelise Blomberg
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
- Division of Occupational and Environmental Medicine, Lund University, Scheelevägen 2, 22363, Lund, Sweden.
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear Medicine, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Medicine, The Faroese National Hospital, Torshavn, Faroe Islands
| | - Pál Weihe
- Department of Occupational Medicine and Public Health, Faroese Hospital System, Torshavn, Faroe Islands
- Center of Health Science, University of the Faroe Islands, Torshavn, Faroe Islands
| | - Philippe Grandjean
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Environmental Medicine, University of Southern Denmark, Odense, Denmark
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Arndal E, Lebech AM, Podlekarava D, Mortensen J, Christensen J, Rönsholt FF, Lund TK, Katzenstein TL, von Buchwald C. Olfactory and Gustatory Outcomes Including Health-Related Quality of Life 3–6 and 12 Months after Severe-to-Critical COVID-19: A SECURe Prospective Cohort Study. J Clin Med 2022; 11:jcm11206025. [PMID: 36294346 PMCID: PMC9605385 DOI: 10.3390/jcm11206025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/06/2022] [Accepted: 10/07/2022] [Indexed: 11/30/2022] Open
Abstract
Background: Long-term follow-up studies of COVID-19 olfactory and gustatory disorders (OGDs) are scarce. OGD, parosmia, and dysgeusia affect health-related quality of life (HRQoL) and the ability to detect potential hazards. Methods: In this study, 29 patients reporting OGD 1 month after severe-to-critical COVID-19 were tested at 3–6 months and retested at 12 months in case of hyposmia/anosmia. We used Sniffin Sticks Threshold, Discrimination, and Identification (TDI) test, Sniffin Sticks Identification Test (SIT16), Brief Smell Identification Test (BSIT), taste strips, and HRQoL. The patients were part of the prospective SECURe cohort. Results: Overall, 28% OD (TDI), 12% GD, 24% parosmia, and 24% dysgeusia (questionnaire) at 3–6 months (n = 29) and 28% OD (TDI), 38% parosmia, and 25% dysgeusia (questionnaire) at 12 months (n = 8) were observed. OGD decreased HRQoL: For 13%, it had a negative effect on daily life and, for 17%, it affected nutrition, 17% reported decreased mood, and 87–90% felt unable to navigate everyday life using their sense of smell and taste. A comparison of SIT16 and BSIT to TDI found sensitivity/specificity values of 75%/100% and 88%/86%. Conclusions: This is the first study to examine TDI, SIT16, BSIT, taste strips, and HRQoL up to 1 year after severe-to-critical COVID-19. The patients suffering from prolonged OGD, parosmia, and dysgeusia experienced severely decreasing HRQoL. We recommend including ear–nose–throat specialists in multidisciplinary post-COVID clinics.
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Affiliation(s)
- Elisabeth Arndal
- Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, Copenhagen University Hospital, 2100 Copenhagen, Denmark
- Correspondence:
| | - Anne-Mette Lebech
- Department of Infectious Diseases, Rigshospitalet, Copenhagen University Hospital, 2100 Copenhagen, Denmark
| | - Daria Podlekarava
- Department of Infectious Diseases, Rigshospitalet, Copenhagen University Hospital, 2100 Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear Medicine, Rigshospitalet, Copenhagen University Hospital, 2100 Copenhagen, Denmark
| | - Jan Christensen
- Department of Occupational- and Physiotherapy, Rigshospitalet, Copenhagen University Hospital, 2100 Copenhagen, Denmark
| | - Frederikke F. Rönsholt
- Department of Cardiology, Rigshospitalet, Section for Lung Transplantation, Copenhagen University Hospital, 2100 Copenhagen, Denmark
| | - Thomas Kromann Lund
- Department of Cardiology, Rigshospitalet, Section for Lung Transplantation, Copenhagen University Hospital, 2100 Copenhagen, Denmark
| | - Terese L. Katzenstein
- Department of Infectious Diseases, Rigshospitalet, Copenhagen University Hospital, 2100 Copenhagen, Denmark
| | - Christian von Buchwald
- Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, Copenhagen University Hospital, 2100 Copenhagen, Denmark
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17
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Katzenstein TL, Christensen J, Lund TK, Kalhauge A, Rönsholt F, Podlekareva D, Arndal E, Berg RMG, Helt TW, Lebech AM, Mortensen J. Relation of Pulmonary Diffusing Capacity Decline to HRCT and VQ SPECT/CT Findings at Early Follow-Up after COVID-19: A Prospective Cohort Study (The SECURe Study). J Clin Med 2022; 11:jcm11195687. [PMID: 36233555 PMCID: PMC9572695 DOI: 10.3390/jcm11195687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 12/15/2022] Open
Abstract
A large proportion of patients exhibit persistently reduced pulmonary diffusion capacity after COVID-19. It is unknown whether this is due to a post-COVID restrictive lung disease and/or pulmonary vascular disease. The aim of the current study was to investigate the association between initial COVID-19 severity and haemoglobin-corrected diffusion capacity to carbon monoxide (DLco) reduction at follow-up. Furthermore, to analyse if DLco reduction could be linked to pulmonary fibrosis (PF) and/or thromboembolic disease within the first months after the illness, a total of 67 patients diagnosed with COVID-19 from March to December 2020 were included across three severity groups: 12 not admitted to hospital (Group I), 40 admitted to hospital without intensive care unit (ICU) admission (Group II), and 15 admitted to hospital with ICU admission (Group III). At first follow-up, 5 months post SARS-CoV-2 positive testing/4 months after discharge, lung function testing, including DLco, high-resolution CT chest scan (HRCT) and ventilation-perfusion (VQ) single photon emission computed tomography (SPECT)/CT were conducted. DLco was reduced in 42% of the patients; the prevalence and extent depended on the clinical severity group and was typically observed as part of a restrictive pattern with reduced total lung capacity. Reduced DLco was associated with the extent of ground-glass opacification and signs of PF on HRCT, but not with mismatched perfusion defects on VQ SPECT/CT. The severity-dependent decline in DLco observed early after COVID-19 appears to be caused by restrictive and not pulmonary vascular disease.
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Affiliation(s)
- Terese L. Katzenstein
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
- Correspondence: ; Tel.: +45-35451492
| | - Jan Christensen
- Department of Occupational and Physiotherapy, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - Thomas Kromann Lund
- Department of Cardiology, Section for Lung Transplantation, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - Anna Kalhauge
- Department of Radiology, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - Frederikke Rönsholt
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
- Department of Cardiology, Section for Lung Transplantation, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - Daria Podlekareva
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - Elisabeth Arndal
- Department of Otorhinolaryngology, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - Ronan M. G. Berg
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
- Centre for Physical Activity Research, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - Thora Wesenberg Helt
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - Anne-Mette Lebech
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
- Department of Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
- Department of Medicine, The National Hospital, 100 Torshavn, Faroe Islands
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
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18
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Schierbeck F, Mortensen J, Andersen NS, Friis LS, Kornblit B, Petersen SL, Schjødt I, Sengeløv H. Pulmonary Function is a Strong Predictor of 2-year Overall Survival and Non-relapse Mortality after Allogenic Hematopoietic Cell Transplantation. Eur J Haematol 2022; 110:50-59. [PMID: 36153797 PMCID: PMC10092052 DOI: 10.1111/ejh.13869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/14/2022] [Accepted: 09/20/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVES The purpose of the study was to assess the validity of the hematopoietic cell transplantation-specific comorbidity index (HCT-CI) and of pulmonary comorbidity prior to hematopoietic cell transplantation (HCT) in terms of predicting non-relapse mortality (NRM) and overall survival (OS). METHODS In this retrospective single-center study of 663 consecutive adult recipients of HCT, we stratified patients into groups by pulmonary comorbidity: low-risk, intermediate-risk and high-risk. The predictive value of this pulmonary comorbidity score (PCS) was compared to HCT-CI. RESULTS In univariate analysis, the HCT-CI and the PCS were associated with OS after transplantation when comparing patients in high-risk groups with patients in low-risk groups. Using the PCS, the hazard ratios (HRs) of the 2-year OS in the entire population and in the myeloablative conditioning (MAC) group were 1.98 (P<0.001) and 3.27 (P<0.001), respectively, whereas the HRs using the HCT-CI were 1.83 (P<0.001) and 2.57 (P=0.002). The 2-year NRM incidence in the three risk-groups in the entire population was significant using both indexes. In the MAC group, the 2-year NRM was significant using the PCS (P=0.003), but not using the HCT-CI (P=0.23). CONCLUSIONS Our study suggest that pulmonary function alone is a strong predictor of 2-year OS and NRM after HCT.
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Affiliation(s)
- Frederikke Schierbeck
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear Medicine, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Niels S Andersen
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Lone S Friis
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Brian Kornblit
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Søren L Petersen
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Ida Schjødt
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Henrik Sengeløv
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
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19
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Christensen A, Grønhøj C, Jensen JS, Lelkaitis G, Kiss K, Juhl K, Charabi BW, Mortensen J, Kjær A, Von Buchwald C. Expression patterns of uPAR, TF and EGFR and their potential as targets for molecular imaging in oropharyngeal squamous cell carcinoma. Oncol Rep 2022; 48:147. [PMID: 35775375 PMCID: PMC9263836 DOI: 10.3892/or.2022.8359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/05/2022] [Indexed: 11/24/2022] Open
Abstract
The clinical introduction of molecular imaging for the management of oropharyngeal squamous cell carcinoma (OPSCC) relies on the identification of relevant cancer-specific biomarkers. The application of three membrane-bound receptors, namely urokinase-type plasminogen activator receptor (uPAR), tissue factor (TF) and EGFR have been previously explored for targeted imaging and therapeutic strategies in a broad range of solid cancers. The present study aimed to investigate the expression patterns of uPAR, EGFR and TF by immunohistochemistry (IHC) to evaluate their potential for targeted imaging and prognostic value in OPSCC. In a retrospective cohort of 93 patients with primary OPSCC, who were balanced into the 45 human papillomavirus (HPV)-positive and 48 HPV-negative groups, the IHC-determined expression profiles of uPAR, TF and EGFR in large biopsy or tumor resection specimens were analyzed. Using the follow-up data, overall survival (OS) and recurrence-free survival were measured. Specifically, associations between survival outcome, biomarker expression and clinicopathological factors were examined using Cox proportional hazards model and log-rank test following Kaplan-Meier statistics. After comparing the expression pattern of biomarkers within the tumor compartment with that in the adjacent normal tissues, uPAR and TF exhibited a highly tumor-specific expression pattern, whereas EGFR showed a homogeneous expression within the tumor compartment as well as a consistent expression in the normal mucosal epithelium and salivary gland tissues. The positive expression rate of uPAR, TF and EGFR in the tumors was 98.9, 76.3 and 98.9%, respectively. No statistically significant association between biomarker expression and survival outcome could be detected. Higher uPAR expression levels had a trend towards reduced OS according to results from univariate analysis (P=0.07; hazard ratio=2.01; 95% CI=0.92-4.37). Taken together, these results suggest that uPAR, TF and EGFR may be suitable targets for molecular imaging and therapy in OPSCC. In particular, uPAR may be an attractive target owing to their high positive expression rates in tumors and a highly tumor-specific expression pattern.
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Affiliation(s)
- Anders Christensen
- Department of Otolaryngology, Head & Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, DK‑2100 Copenhagen, Denmark
| | - Christian Grønhøj
- Department of Otolaryngology, Head & Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, DK‑2100 Copenhagen, Denmark
| | - Jakob Schmidt Jensen
- Department of Otolaryngology, Head & Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, DK‑2100 Copenhagen, Denmark
| | - Giedrius Lelkaitis
- Department of Pathology, Rigshospitalet, University of Copenhagen, DK‑2100 Copenhagen, Denmark
| | - Katalin Kiss
- Department of Pathology, Rigshospitalet, University of Copenhagen, DK‑2100 Copenhagen, Denmark
| | - Karina Juhl
- Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet, University of Copenhagen, DK‑2100 Copenhagen, Denmark
| | - Birgitte Wittenborg Charabi
- Department of Otolaryngology, Head & Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, DK‑2100 Copenhagen, Denmark
| | - Jann Mortensen
- Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet, University of Copenhagen, DK‑2100 Copenhagen, Denmark
| | - Andreas Kjær
- Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet, University of Copenhagen, DK‑2100 Copenhagen, Denmark
| | - Christian Von Buchwald
- Department of Otolaryngology, Head & Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, DK‑2100 Copenhagen, Denmark
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20
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Patursson P, Møller G, Thomsen BB, Olsen E, Mortensen J, Andorsdóttir G, Mohr M, Andersen JR. Effects of Postdischarge High-Protein Oral Nutritional Supplements and Resistance Training in Malnourished Surgical Patients: A Pilot Randomized Controlled Trial. Nutrients 2022; 14:nu14132599. [PMID: 35807780 PMCID: PMC9268632 DOI: 10.3390/nu14132599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/17/2022] [Accepted: 06/19/2022] [Indexed: 02/04/2023] Open
Abstract
The presence of malnutrition is increasingly becoming a postdischarge problem in surgical patients. We aimed to investigate whether oral nutritional supplements combined with resistance training could minimize skeletal muscle atrophy in surgical patients after discharge. This randomized controlled study was conducted at the Department of Surgery, National Hospital of Faroe Islands from 2018 to 2020. A total of 45 patients aged 37−74 years participated and were allocated to one of three groups: diet (DI; n = 13), exercise and diet (EX + DI; n = 16), or control (CON; n = 16). The intervention period lasted 8 weeks. The intervention groups received individual dietary counselling and a protein-rich oral nutritional supplement twice a day containing 22 g of protein/day. Patients in the EX + DI group were assigned to resistance training sessions. Patients in the CON group received standard care. The primary outcome was change in lean body mass (LBM). Secondary outcomes were change in body weight, handgrip strength, quality of life, surgery-related side effects, energy and protein intake, length of stay and one-year mortality. To estimate within-group changes, linear mixed models including group−time interactions as fixed effects and patients as random effects were fitted. Within-group change in LBM was 233, 813 and 78 g in the DI, EX + DI and CON groups, respectively, with no significant between-group difference (p > 0.05). Pain score declined more (p = 0.04) in the EX + DI group compared with the CON group. Body weight, handgrip strength, quality of life and surgery-related side effects did not differ between groups. At the end of study, mean cumulative weight change in the DI and EX + DI groups was 0.4% and 1.6%, respectively, whereas the CON group experienced a weight loss of −0.6%. No significant difference in primary outcome between groups was noted. However, our results indicate some benefits from exercise and nutrition for malnourished surgical patients.
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Affiliation(s)
- Poula Patursson
- Department of Surgery, National Hospital of the Faroe Islands, J.C. Svabosgøta 41–49, 100 Torshavn, Faroe Islands;
- Correspondence:
| | - Grith Møller
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Denmark; (G.M.); (J.R.A.)
| | - Bjartur Bernhardson Thomsen
- Department of Occupational and Physiotherapy, National Hospital of the Faroe Islands, J.C. Svabosgøta 41–49, 100 Torshavn, Faroe Islands;
| | - Eyðfinnur Olsen
- Department of Surgery, National Hospital of the Faroe Islands, J.C. Svabosgøta 41–49, 100 Torshavn, Faroe Islands;
| | - Jann Mortensen
- Department of Clinical Physiology, Nuclear Medicine & PET, Centre of Diagnostic Investigation, Copenhagen University Hospital, Blegdamsvej 9, 2100 Copenhagen, Denmark;
| | - Guðrið Andorsdóttir
- The Genetic Biobank of the Faroes, J.C. Svabosgøta 43, 100 Torshavn, Faroe Islands;
| | - Magni Mohr
- Centre of Health Sciences, Faculty of Health, University of the Faroe Islands, Vestara Bryggja 15, 100 Torshavn, Faroe Islands;
- Department of Sports Science and Clinical Biomechanics, SDU Sport and Health Sciences Cluster (SHSC), University of Southern Denmark, Campusvej 55, 5230 Odense, Denmark
| | - Jens Rikardt Andersen
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Denmark; (G.M.); (J.R.A.)
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21
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Wang X, Mortensen J, Sengeloev H, Kjaer-Kristoffersen F, Meidahl Petersen P, Specht L. PD-0171 Lung function after total body irradiation in myeloablative allogeneic stem cell transplantation. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02776-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Lynggaard CD, Grønhøj C, Christensen R, Fischer-Nielsen A, Melchiors J, Specht L, Andersen E, Mortensen J, Oturai P, Barfod GH, Haastrup EK, Møller-Hansen M, Haack-Sørensen M, Ekblond A, Kastrup J, Jensen SB, von Buchwald C. OUP accepted manuscript. Stem Cells Transl Med 2022; 11:478-489. [PMID: 35435231 PMCID: PMC9154319 DOI: 10.1093/stcltm/szac011] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/27/2022] [Indexed: 11/14/2022] Open
Abstract
No effective therapy exists for the most common long-term side effect of radiation therapy for head and neck cancer (HNC)—xerostomia. The objective was to evaluate safety and provide proof of concept for efficacy of allogeneic adipose tissue-derived mesenchymal stem/stromal cells (AT-MSCs) injected into the major salivary glands of irradiated patients. This open-label, first-in-human, phase 1b, and single-center trial was conducted with repeated measurements days 0, 1, 5, and 30 and 4 months. Eligible patients with objective and subjective signs of radiation-induced salivary gland damage after treatment of oropharyngeal squamous cell carcinoma stages I-II (UICC 8) were enrolled. Twenty-five million cryopreserved AT-MSCs were injected into each submandibular and 50 million AT-MSCs into each parotid gland. Data were collected on adverse events, unstimulated and stimulated whole saliva (UWS and SWS) flow rates and saliva composition, patient-reported outcomes (EORTC QLQ-H&N35 and Xerostomia Questionnaire [XQ]), blood samples and salivary gland scintigraphy. Data were analyzed using repeated measures linear mixed models. Ten patients (7 men, 3 women, 59.5 years [range: 45-70]) were treated in 4 glands. No treatment-related serious adverse events occurred. During 4 months, UWS flow rate increased from 0.13 mL/minute at baseline to 0.18 mL/minute with a change of 0.06 (P = .0009) mL/minute. SWS flow rate increased from 0.66 mL/minute at baseline to 0.75 mL/minute with a change of 0.09 (P = .017) mL/minute. XQ summary score decreased by 22.6 units (P = .0004), EORTC QLQ-H&N35 dry mouth domains decreased by 26.7 (P = .0013), sticky saliva 23.3 (P = .0015), and swallowing 10.0 (P = .0016). Our trial suggests treatment of the major salivary glands with allogenic AT-MSCs is safe, warranting confirmation in larger trials.
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Affiliation(s)
- Charlotte Duch Lynggaard
- Department of Otolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Section for Biostatistics and Evidence-Based Research, The Parker Institute, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark
- Corresponding author: Charlotte Duch Lynggaard, MD, PhD Student, Department of Otolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, Copenhagen University Hospital, Inge Lehmanns Vej 8, DK-2100 Copenhagen, Denmark. Tel: +45 6178 4460;
| | - Christian Grønhøj
- Department of Otolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Robin Christensen
- Section for Biostatistics and Evidence-Based Research, The Parker Institute, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark
- Research Unit of Rheumatology, Department of Clinical Research, University of Southern Denmark, Odense University Hospital, Odense, Denmark
| | - Anne Fischer-Nielsen
- Department of Clinical Immunology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jacob Melchiors
- Department of Otolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Lena Specht
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Oncology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Elo Andersen
- Department of Oncology, Herlev Hospital, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Peter Oturai
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Eva Kannik Haastrup
- Department of Clinical Immunology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Michael Møller-Hansen
- Department of Ophthalmology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Mandana Haack-Sørensen
- Cardiology Stem Cell Centre, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Annette Ekblond
- Cardiology Stem Cell Centre, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jens Kastrup
- Cardiology Stem Cell Centre, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Siri Beier Jensen
- Department of Dentistry and Oral Health, Aarhus University, Copenhagen, Denmark
| | - Christian von Buchwald
- Department of Otolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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23
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Katzenstein TL, Jørgensen SE, Mortensen J, Helleberg M, Kalhauge A, Mogensen TH. Fulminant H1N1 and severe acute respiratory syndrome coronavirus-2 infections with a 4-year interval without an identifiable underlying cause: a case report. J Med Case Rep 2021; 15:505. [PMID: 34625101 PMCID: PMC8499611 DOI: 10.1186/s13256-021-03113-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 09/13/2021] [Indexed: 12/02/2022] Open
Abstract
Background The clinical presentation of severe acute respiratory syndrome coronavirus-2 infection is highly variable from asymptomatic infection to fulminant disease. The reasons for the variation are only starting to unravel, with risk factors including age and certain comorbidities as well as genetic defects causing immunological perturbations in the interferon pathways. Case presentation We report the case of an otherwise healthy Caucasian man, who at ages 60 and 64 years suffered from severe H1N1 influenza virus infection and severe acute respiratory syndrome coronavirus-2 infections, respectively. In both cases, there were acute kidney impairment and the need for intensive care unit admission as well as mechanical ventilation. Fortunately, after both infections there was full clinical recovery. The severity of the infections indicates an underlying impairment in the ability to control these kinds of infections. Challenge of patient peripheral blood mononuclear cells showed impaired type I and III antiviral interferon responses and reduced interferon-stimulated gene expression. However, despite investigation of patient samples by whole exome sequencing and enzyme-linked immunosorbent assay, no known disease-causing genetic variants related to interferon pathways were found, nor were interferon autoantibodies demonstrated. Thus, any underlying immunological cause of this unusual susceptibility to severe viral infections remains unresolved. Conclusion The patient experienced very similar severe clinical pictures triggered by H1N1 and severe acute respiratory syndrome coronavirus-2 infections, indicating an underlying inability to contain these infections. We were unable to show that the patient had any of the currently known types of immune incompetence but identified genetic changes possibly contributing to the severe course of both infections. Further analyses to delineate contribution factors are needed.
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Affiliation(s)
- Terese L Katzenstein
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Esther Moellers vej 6, 2100, Copenhagen, Denmark.
| | - Sofie E Jørgensen
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Marie Helleberg
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Esther Moellers vej 6, 2100, Copenhagen, Denmark
| | - Anna Kalhauge
- Department of Radiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Trine H Mogensen
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark.,Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
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24
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Risom EC, Buggeskov KB, Petersen RH, Mortensen J, Ravn HB. Influence of reduced diffusing capacity and FEV 1 on outcome after cardiac surgery. Acta Anaesthesiol Scand 2021; 65:1221-1228. [PMID: 34089538 DOI: 10.1111/aas.13935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Impaired lung function is a well-known risk factor in cardiac surgery patients and reduced forced expiratory volume in 1 second (FEV1 ) is associated with increased mortality. However, there is limited knowledge regarding the influence of impaired diffusing capacity of the lungs for carbon monoxide (DLCO) in unselected cardiac surgery patients. The aim of this study was to investigate the association of impaired DLCO and/or reduced FEV1 on post-operative mortality and morbidity in cardiac surgery patients. METHODS In a prospective cohort study, 390 patients scheduled for elective cardiac surgery underwent preoperative lung function test including spirometry and DLCO measurements. We defined reduced FEV1 as FEV1 below lower limit of normal (LLN) and impaired DLCO as DLCO <60% of predicted. RESULTS Mortality within 1 year (90-570 days) was significantly higher in patients with impaired DLCO (12% vs 3%, P = .010) and with reduced FEV1 (9% vs 3%, P = .028). Mortality was higher in patients with impaired DLCO both in the presence and absence of FEV1 < LLN. In multivariate analysis, only impaired DLCO [OR: 3.3, 95% confidence interval (CI) 1.4-7.5; P = .005] and age (OR: 1.1 per year, 95% CI 1.0-1.2; P = .001) were independent predictors of the combined outcome of mortality and prolonged intensive care unit (ICU) stay. Impaired DLCO was also associated with post-operative respiratory complications. CONCLUSION In patients undergoing elective cardiac surgery, preoperative impaired FEV1 and DLCO were associated with increased mortality and morbidity. In multivariate analysis, only DLCO and age were independent predictors of a combined outcome of mortality and prolonged ICU stay.
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Affiliation(s)
- Emilie C. Risom
- Department of Cardiothoracic Anaesthesiology Rigshospitalet, Copenhagen University Hospital Copenhagen Denmark
| | - Katrine B. Buggeskov
- Department of Cardiothoracic Anaesthesiology Rigshospitalet, Copenhagen University Hospital Copenhagen Denmark
| | - René H. Petersen
- Department of Cardiothoracic Surgery Rigshospitalet, Copenhagen University Hospital Copenhagen Denmark
| | - Jann Mortensen
- Department of Clinical Physiology Nuclear Medicine & PET, Rigshospitalet, Copenhagen University Hospital Copenhagen Denmark
| | - Hanne B. Ravn
- Department of Cardiothoracic Anaesthesiology Rigshospitalet, Copenhagen University Hospital Copenhagen Denmark
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25
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Berg RMG, Hartmann JP, Iepsen UW, Christensen RH, Ronit A, Andreasen AS, Bailey DM, Mortensen J, Moseley PL, Plovsing RR. Therapeutic benefits of proning to improve pulmonary gas exchange in severe respiratory failure: focus on fundamentals of physiology. Exp Physiol 2021; 107:759-770. [PMID: 34242438 PMCID: PMC9290689 DOI: 10.1113/ep089405] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 07/06/2021] [Indexed: 12/27/2022]
Abstract
New Findings What is the topic of this review? The use of proning for improving pulmonary gas exchange in critically ill patients. What advances does it highlight? Proning places the lung in its ‘natural’ posture, and thus optimises the ventilation‐perfusion distribution, which enables lung protective ventilation and the alleviation of potentially life‐threatening hypoxaemia in COVID‐19 and other types of critical illness with respiratory failure.
Abstract The survival benefit of proning patients with acute respiratory distress syndrome (ARDS) is well established and has recently been found to improve pulmonary gas exchange in patients with COVID‐19‐associated ARDS (CARDS). This review outlines the physiological implications of transitioning from supine to prone on alveolar ventilation‐perfusion (V˙A--Q˙) relationships during spontaneous breathing and during general anaesthesia in the healthy state, as well as during invasive mechanical ventilation in patients with ARDS and CARDS. Spontaneously breathing, awake healthy individuals maintain a small vertical (ventral‐to‐dorsal) V˙A/Q˙ ratio gradient in the supine position, which is largely neutralised in the prone position, mainly through redistribution of perfusion. In anaesthetised and mechanically ventilated healthy individuals, a vertical V˙A/Q˙ ratio gradient is present in both postures, but with better V˙A--Q˙ matching in the prone position. In ARDS and CARDS, the vertical V˙A/Q˙ ratio gradient in the supine position becomes larger, with intrapulmonary shunting in gravitationally dependent lung regions due to compression atelectasis of the dorsal lung. This is counteracted by proning, mainly through a more homogeneous distribution of ventilation combined with a largely unaffected high perfusion dorsally, and a consequent substantial improvement in arterial oxygenation. The data regarding proning as a therapy in patients with CARDS is still limited and whether the associated improvement in arterial oxygenation translates to a survival benefit remains unknown. Proning is nonetheless an attractive and lung protective manoeuvre with the potential benefit of improving life‐threatening hypoxaemia in patients with ARDS and CARDS.
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Affiliation(s)
- Ronan M G Berg
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Clinical Physiology, Nuclear Medicine & PET, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.,Centre for Physical Activity Research, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.,Neurovascular Research Laboratory, Faculty of Life Sciences and Education, University of South Wales, Pontypridd, UK
| | - Jacob Peter Hartmann
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Centre for Physical Activity Research, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.,Department of Emergency Medicine, North Zealand Hospital, Hillerød, Denmark
| | - Ulrik Winning Iepsen
- Centre for Physical Activity Research, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.,Department of Anaesthesia and Intensive Care, Copenhagen University Hospital - Hvidovre Hospital, Hvidovre, Denmark
| | | | - Andreas Ronit
- Department of Infectious Diseases, Copenhagen University Hospital - Hvidovre Hospital, Hvidovre, Denmark
| | - Anne Sofie Andreasen
- Department of Anaesthesia and Intensive Care, Copenhagen University Hospital - Herlev Hospital, Herlev, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Damian M Bailey
- Neurovascular Research Laboratory, Faculty of Life Sciences and Education, University of South Wales, Pontypridd, UK
| | - Jann Mortensen
- Department of Clinical Physiology, Nuclear Medicine & PET, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Pope L Moseley
- Novo Nordisk Foundation Centre for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ronni R Plovsing
- Department of Anaesthesia and Intensive Care, Copenhagen University Hospital - Hvidovre Hospital, Hvidovre, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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26
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Lynggaard V, Zwisler AD, Taylor RS, May O, Mortensen J, Nielsen CV. Short- and long-term effects of the patient education strategy-learning and coping-in cardiac rehabilitation: a randomized controlled trial (LC-REHAB). Health Educ Res 2021; 36:41-60. [PMID: 33755118 DOI: 10.1093/her/cyaa051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
The objectives were to assess the short- and long-term effect of the patient education strategy 'Learning and Coping' (LC) in cardiac rehabilitation (CR) on health-related quality of life, patient education impact, cardiac risk factors and lifestyle. In total, 825 patients hospitalized with ischaemic heart disease or heart failure were randomized to either LC-CR or standard CR at three Danish hospitals. Teaching approach in LC-CR was situational, inductive and reflective, with experienced patients as co-educators and supplemental interviews. Teaching approach in standard CR was structured and deductive. Outcomes were assessed immediately after CR, and after 3 months (short term), and after 3 years (long term). Between-arm differences in favour of LC-CR were SF-12 'role emotional' (3.7, 95% CI: 0.6-6.8) and MDI depression score (0.9, 0.1-1.8) immediately after CR, exercise capacity (4 W, 1-9) at 3 months and SF-12 'role physical' (4.6, 0.1-9.0) (long term). Between-arm differences in favour of controls were waist circumference (-1.7 cm, -2.3 to -1.0) immediately after CR and HeiQ domain 'Constructive attitudes and approaches' (0.11, 0.04-0.18), triglycerides (-0.12 mmol/l, -0.21 to -0.02), systolic blood pressure (-3.12 mmHg, -5.66 to -0.58) at 3 months. Adding LC strategies to CR provides inconsistent short-term results but improves 'role physical' long term.
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Affiliation(s)
- V Lynggaard
- Cardiovascular Research Unit, Department of Cardiology, Gødstrup Hospital (Formerly known as Regional Hospital West Jutland), 61 Gammel Landevej, 7400 Herning, Denmark
| | - A D Zwisler
- Danish Knowledge Centre for Rehabilitation and Palliative Care, University Hospital Odense and University of Southern Denmark, Nyborg, Denmark
| | - R S Taylor
- Danish Knowledge Centre for Rehabilitation and Palliative Care, University Hospital Odense and University of Southern Denmark, Nyborg, Denmark
- MRC/CSO Social and Public Health Sciences Unit, Robertson Centre for Biostatistics, Institute of Health and Well Being, University of Glasgow, Glasgow, UK
| | - O May
- Department of Cardiology, Gødstrup Hospital, Herning, Denmark
| | - J Mortensen
- Department of Nuclear Medicine, Gødstrup Hospital, Herning, Denmark
| | - C V Nielsen
- Department of Public Health, Section of Social Medicine and Rehabilitation, Aarhus University, Aarhus, Denmark
- DEFACTUM, Central Denmark Region, Aarhus, Denmark
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27
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Abstract
PET/computed tomography (CT) imaging increasingly is used in neuroendocrine neoplasms (NENs) for diagnosis, staging, monitoring, prognostication, and choosing treatment. Somatostatin PET analog tracers have added to the specificity by obtaining higher affinity to somatostatin receptors with 68Ga-labeled or 64Cu-labeled DOTA peptides compared with single-photon emission CT imaging isotopes. PET uptake correlates to tumor grade and is an essential part of theranostics with peptide receptor radionuclide treatment. This article focuses on the literature on head-to-head studies and meta-analyses of different combinations of peptide agonists and a few antagonists. Overall, the published data support the diagnostic capability of PET/CT imaging in NENs.
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Affiliation(s)
- Camilla Bardram Johnbeck
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, Copenhagen, Denmark; European Neuroendocrine Tumor Society Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, Copenhagen, Denmark; European Neuroendocrine Tumor Society Center of Excellence, Rigshospitalet, Copenhagen, Denmark; Medical Faculty, University of Copenhagen, Denmark.
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28
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de Nijs R, Sijtsema ND, Kruis MF, Jensen CV, Iversen M, Perch M, Mortensen J. Comparison of 81mKrypton and 99mTc-Technegas for ventilation single-photon emission computed tomography in severe chronic obstructive pulmonary disease. Nucl Med Commun 2021; 42:160-168. [PMID: 33105398 PMCID: PMC7808361 DOI: 10.1097/mnm.0000000000001314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 09/23/2020] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Ventilation and perfusion single-photon emission computed tomography combined with computed tomography (SPECT/CT) is a powerful tool to assess the state of the lungs in chronic obstructive pulmonary disease (COPD). 81mKrypton is a gaseous ventilation tracer and distributes similarly to air, but is not widely available and relatively expensive. 99mTc-Technegas is cheaper and has wider availability, but is an aerosol, which may deposit in hot spots as the severity of COPD increases. In this study, 81mKrypton and 99mTc-Technegas were compared quantitatively in patients with severe COPD. METHODS The penetration ratio, the heterogeneity index (with and without band filtering for relevant clinical sizes) and hot spot appearance were assessed in eleven patients with severe COPD that underwent simultaneous dual-isotope ventilation SPECT/CT with both 99mTc-Technegas and 81mKrypton. RESULTS Significant differences were found in the penetration ratio for the medium energy general purpose (MEGP) collimators, but not for the low energy general purpose (LEGP) collimators. The difference in the overall and the band filtered heterogeneity index was significant in most cases. All patients suffered from 99mTc-Technegas hot spots in at least one lung. Comparison of MEGP 81mKrypton and LEGP Technegas scans revealed similar results as the comparison for the MEGP collimators. CONCLUSION Caution should be taken when replacing 81mKrypton with 99mTc-Technegas as a ventilation tracer in patients with severe COPD as there are significant differences in the distribution of the tracers over the lungs. Furthermore, this patient group is prone to 99mTc-Technegas hot spots and might need additional scanning if hot spots severely hamper image interpretation.
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Affiliation(s)
- Robin de Nijs
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Nienke D. Sijtsema
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Physics and Astronomy, Faculty of Science, VU University, Amsterdam, The Netherlands
| | | | | | - Martin Iversen
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Michael Perch
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
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29
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Mohammad M, Kristensen AW, Hedsund C, Greve AM, Perch M, Mortensen J, Berg RMG. Prognostic impact of ventilation-perfusion defects and pulmonary diffusing capacity after single lung transplantation. Clin Physiol Funct Imaging 2020; 41:221-225. [PMID: 33155400 DOI: 10.1111/cpf.12676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 10/13/2020] [Accepted: 11/02/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Ventilation-perfusion (VQ) scintigraphy and lung function testing are often used to assess allograft function after single lung transplantation (SLTX). However, it is unknown whether allograft defects on VQ scintigraphy presage all-cause mortality after SLTX. OBJECTIVE To investigate whether allograft defects on VQ scintigraphy portend poorer lung function and increased mortality after SLTX. METHODS We retrospectively identified 45 consecutive patients in which a VQ scintigraphy was performed as part of the routine workup 12 weeks after SLTX. VQ scintigraphies were scored for matched and mismatched perfusion defects in the allograft. Lung function testing was performed according to established guidelines six months after SLTX. Time to all-cause mortality was the endpoint. RESULTS 19 (42%) patients had matched VQ defects. After a median follow-up of 4.1 (IQR 1.5-7.9) years since SLTX, 35 (78%) had died. Those with matched defects in the allograft had lower diffusing capacity (mean 42 [SD 14] versus mean 54 [SD 18] % of predicted, p < .05) and increased mortality (univariable HR 2.06, 95% CI: 1.05-4.06, p = .04). However, in multivariate analysis, only lower post-transplantation diffusing capacity remained associated with mortality (HR 1.08, 95% CI: 1.02-1.30 per % lower diffusing capacity of predicted, p = .003). CONCLUSION In SLTX patients, a lower diffusing capacity appeared to explain the increased mortality among those with matched VQ defects in the allograft.
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Affiliation(s)
- Milan Mohammad
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anna Warncke Kristensen
- Department of Clinical Physiology, Nuclear Medicine & PET, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Caroline Hedsund
- Department of Pulmonary Medicine, Gentofte Hospital, Hellerup, Denmark
| | - Anders M Greve
- Department of Clinical Biochemistry, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Michael Perch
- Department of Cardiology, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology, Nuclear Medicine & PET, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.,Department of Medicine, The National Hospital, Torshavn, Faroe Islands
| | - Ronan M G Berg
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Clinical Physiology, Nuclear Medicine & PET, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark.,Centre for Physical Activity Research, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark.,Faculty of Life Sciences and Education, University of South Wales, Pontypridd, UK
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30
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van Koningsbruggen-Rietschel S, Davies JC, Pressler T, Fischer R, MacGregor G, Donaldson SH, Smerud K, Meland N, Mortensen J, Fosbøl MØ, Downey DG, Myrset AH, Flaten H, Rye PD. Inhaled dry powder alginate oligosaccharide in cystic fibrosis: a randomised, double-blind, placebo-controlled, crossover phase 2b study. ERJ Open Res 2020; 6:00132-2020. [PMID: 33123558 PMCID: PMC7569163 DOI: 10.1183/23120541.00132-2020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 07/25/2020] [Indexed: 11/21/2022] Open
Abstract
Background OligoG is a low molecular-weight alginate oligosaccharide that improves the viscoelastic properties of cystic fibrosis (CF) mucus and disrupts biofilms, thereby potentiating the activity of antimicrobial agents. The efficacy of inhaled OligoG was evaluated in adult patients with CF. Methods A randomised, double-blind, placebo-controlled multicentre crossover study was used to demonstrate safety and efficacy of inhaled dry powder OligoG. Subjects were randomly allocated to receive OligoG 1050 mg per day (10 capsules three times daily) or matching placebo for 28 days, with 28-day washout periods following each treatment period. The primary end-point was absolute change in percentage predicted forced expiratory volume in 1 s (FEV1) at the end of 28-day treatment. The intention-to-treat (ITT) population (n=65) was defined as randomised to treatment with at least one administration of study medication and post-dosing evaluation. Results In this study, 90 adult subjects were screened and 65 were randomised. Statistically significant improvement in FEV1 was not observed in the ITT population. Adverse events included nasopharyngitis, cough and pulmonary exacerbation. The number and proportions of patients with adverse events and serious adverse events were similar between OligoG and placebo group. Conclusions Inhalation of OligoG-dry powder over 28 days was safe in adult CF subjects. Statistically significant improvement of FEV1 was not reached. The planned analyses did not indicate a significant treatment benefit with OligoG compared to placebo. Post hoc exploratory analyses showed subgroup results that indicate that further studies of OligoG in this patient population are justified. Inhalation of OligoG-DPI over 28 days was shown to be safe in adult CF subjects. Statistically significant improvement of FEV1 was not reached. Post hoc subgroup analyses support mechanism of action for OligoG and warrant further prospective studies.https://bit.ly/2PHq6Z0
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Affiliation(s)
| | - Jane C Davies
- Dept of Paediatric Respiratory Medicine, National Heart and Lung Institute, Imperial College London, and Royal Brompton and Harefield NHS Foundation Trust, London, UK
| | | | | | - Gordon MacGregor
- Dept of Respiratory Medicine, Queen Elizabeth University Hospital, Glasgow, UK
| | | | - Knut Smerud
- SMERUD Medical Research International AS, Oslo, Norway
| | - Nils Meland
- SMERUD Medical Research International AS, Oslo, Norway
| | - Jann Mortensen
- Copenhagen CF Centre, Rigshospitalet, Copenhagen, Denmark
| | - Marie Ø Fosbøl
- Copenhagen CF Centre, Rigshospitalet, Copenhagen, Denmark
| | - Damian G Downey
- Centre for Experimental Medicine, Queen's University, Belfast, UK
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31
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Binderup T, Knigge U, Johnbeck CB, Loft A, Berthelsen AK, Oturai P, Mortensen J, Federspiel B, Langer SW, Kjaer A. 18F-FDG PET is Superior to WHO Grading as a Prognostic Tool in Neuroendocrine Neoplasms and Useful in Guiding PRRT: A Prospective 10-Year Follow-up Study. J Nucl Med 2020; 62:808-815. [PMID: 33067340 DOI: 10.2967/jnumed.120.244798] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 09/17/2020] [Indexed: 12/12/2022] Open
Abstract
Accurate grading of patients with neuroendocrine neoplasms (NENs) is essential for risk stratification and optimal choice of therapy. Currently, grading is based on histologically assessed degree of tumor proliferation. The aim of the present study was to assess the long-term prognostic value of 18F-FDG PET imaging for risk stratification of NENs and compare it with tumor grading (World Health Organization 2010 classification). Methods: We conducted a prospective cohort study evaluating the prognostic value of 18F-FDG PET imaging and compared it with histologic grading. Enrolled were 166 patients of all grades and with histologically confirmed NENs of gastroenteropancreatic origin. The primary endpoint was overall survival (OS). Progression-free survival (PFS) was a secondary endpoint. In addition, OS in relation to peptide receptor radionuclide therapy (PRRT) was analyzed as an exploratory endpoint. The median follow-up time was 9.8 y. Results: Analysis of the whole cohort revealed that a positive 18F-FDG PET scan was associated with a shorter OS than a negative 18F-FDG PET scan (hazard ratio: 3.8; 95% CI: 2.4-5.9; P < 0.001). In G1 and G2 patients (n = 140), a positive 18F-FDG PET scan was the only identifier of high risk for death (hazard ratio: 3.6; 95% CI, 2.2-5.9; P < 0.001). In multivariate analysis, 18F-FDG PET, G3 tumor, ≥2 liver metastases, and ≥2 prior therapies were independent prognostic factors for OS, and 18F-FDG PET, G3 tumor, and ≥3 liver metastases were independent prognostic factors for PFS. For patients receiving PRRT, 18F-FDG-negative cases had a significantly longer survival than 18F-FDG-positive cases, whereas no difference was identified for tumor grading. 18F-FDG-positive patients receiving PRRT had a significantly longer median survival than patients not receiving PRRT (4.4 vs. 1.4 y, P = 0.001), whereas no difference was seen for 18F-FDG-negative patients. Conclusion: 18F-FDG PET is useful for risk stratification of all NEN grades and is superior to histologic grading. 18F-FDG PET could differentiate G1 and G2 tumors into low- and high-risk groups. In the selection of therapy and for risk stratification of NEN patients, 18F-FDG PET status should be considered.
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Affiliation(s)
- Tina Binderup
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet & University of Copenhagen, Copenhagen, Denmark.,European Neuroendocrine Tumors Society Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Ulrich Knigge
- European Neuroendocrine Tumors Society Center of Excellence, Rigshospitalet, Copenhagen, Denmark.,Department of Surgical Gastroenterology, Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Endocrinology, Rigshospitalet, Copenhagen, Denmark
| | - Camilla Bardram Johnbeck
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet & University of Copenhagen, Copenhagen, Denmark.,European Neuroendocrine Tumors Society Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Annika Loft
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet & University of Copenhagen, Copenhagen, Denmark.,European Neuroendocrine Tumors Society Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Anne Kiil Berthelsen
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet & University of Copenhagen, Copenhagen, Denmark.,European Neuroendocrine Tumors Society Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Peter Oturai
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet & University of Copenhagen, Copenhagen, Denmark.,European Neuroendocrine Tumors Society Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet & University of Copenhagen, Copenhagen, Denmark.,European Neuroendocrine Tumors Society Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Birgitte Federspiel
- European Neuroendocrine Tumors Society Center of Excellence, Rigshospitalet, Copenhagen, Denmark.,Department of Pathology, Rigshospitalet, Copenhagen, Denmark; and
| | - Seppo W Langer
- European Neuroendocrine Tumors Society Center of Excellence, Rigshospitalet, Copenhagen, Denmark.,Department of Oncology, Rigshospitalet, Copenhagen, Denmark
| | - Andreas Kjaer
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet & University of Copenhagen, Copenhagen, Denmark .,European Neuroendocrine Tumors Society Center of Excellence, Rigshospitalet, Copenhagen, Denmark
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32
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Kristensen AW, Greve AM, Dahl RH, Perch M, Mortensen J, Berg RMG. Evidence of unilateral diaphragmatic paralysis on lung scintigraphy after double lung transplantation: impact on lung function and survival. Scand J Clin Lab Invest 2020; 80:454-455. [PMID: 33000658 DOI: 10.1080/00365513.2020.1781244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Anna Warncke Kristensen
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Anders Møller Greve
- Department of Clinical Biochemistry, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Rasmus H Dahl
- Department of Neuroanaesthesiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Michael Perch
- Department of Cardiology, Section for Lung Transplantation, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Medicine, The National Hospital, Torshavn, Faroe Islands
| | - Ronan M G Berg
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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33
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Risom E, Buggeskov K, Petersen R, Mortensen J, Ravn H. The impact of reduced duffusing capacity of the lung for carbon monoxide and fev1 on outcome after cardiac surgery. J Cardiothorac Vasc Anesth 2020. [DOI: 10.1053/j.jvca.2020.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Fosbøl MØ, Kurbegovic S, Johannesen HH, Røder MA, Hansen AE, Mortensen J, Loft A, Petersen PM, Madsen J, Brasso K, Kjaer A. Urokinase-Type Plasminogen Activator Receptor (uPAR) PET/MRI of Prostate Cancer for Noninvasive Evaluation of Aggressiveness: Comparison with Gleason Score in a Prospective Phase 2 Clinical Trial. J Nucl Med 2020; 62:354-359. [PMID: 32764119 DOI: 10.2967/jnumed.120.248120] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 06/30/2020] [Indexed: 02/06/2023] Open
Abstract
The aim of this study was to evaluate the correlation between uptake of the PET ligand 68Ga-NOTA-AE105, targeting the urokinase-type plasminogen activator receptor (uPAR), and Gleason score in patients undergoing prostate biopsy. Methods: Patients with clinical suspicion of prostate cancer (PCa) or previously diagnosed with PCa were prospectively enrolled in this phase 2 trial. A combination of uPAR PET and multiparametric MRI (mpMRI) was performed, and the SUV in the primary tumor, as delineated by mpMRI, was measured by 2 independent readers. The correlation between the SUV and the Gleason score obtained by biopsy was assessed. Results: A total of 27 patients had histologically verified PCa visible on mpMRI and constituted the study population. There was a positive correlation between the SUVmax and the Gleason score (Spearman ρ = 0.55; P = 0.003). Receiver operating characteristic analysis showed an area under the curve of 0.88 (95% CI, 0.67-1.00) for discriminating a Gleason score of greater than or equal to 3 + 4 from a Gleason score of less than or equal to 3 + 3. A cutoff for the tumor SUVmax could be established with a sensitivity of 96% (79%-99%) and a specificity of 75% (30%-95%) for detecting a Gleason score of greater than or equal to 3 + 4. For discriminating a Gleason score of greater than or equal to 4 + 3 from a Gleason score of less than or equal to 3 + 4, a cutoff could be established for detecting a Gleason score of greater than or equal to 4 + 3 with a sensitivity of 93% (69%-99%) and a specificity of 62% (36%-82%). Conclusion: SUV measurements from uPAR PET in primary tumors, as delineated by mpMRI, showed a significant correlation with the Gleason score, and the tumor SUVmax was able to discriminate between low-risk Gleason score profiles and intermediate risk Gleason score profiles with a high diagnostic accuracy. Consequently, uPAR PET/MRI could be a promising method for the noninvasive evaluation of PCa and might reduce the need for repeated biopsies (e.g., in active surveillance).
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Affiliation(s)
- Marie Øbro Fosbøl
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Sorel Kurbegovic
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Helle Hjorth Johannesen
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Martin Andreas Røder
- Copenhagen Prostate Cancer Center, Department of Urology, Rigshospitalet, Copenhagen, Denmark; and
| | - Adam Espe Hansen
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Annika Loft
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | | | - Jacob Madsen
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Klaus Brasso
- Copenhagen Prostate Cancer Center, Department of Urology, Rigshospitalet, Copenhagen, Denmark; and
| | - Andreas Kjaer
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
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35
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Kristensen AW, Berg RM, Greve AM, Dahl RH, Perch M, Mortensen J. Survival in patients with scintigraphic evidence of pulmonary thromboembolism 12 weeks after double lung transplantation. J Heart Lung Transplant 2020; 39:719-721. [DOI: 10.1016/j.healun.2020.02.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/29/2020] [Accepted: 02/20/2020] [Indexed: 10/24/2022] Open
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36
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Hansen SL, de Nijs R, Mortensen J, Berg RMG. Ventilation-perfusion SPECT versus CTPA in young adult females with suspected pulmonary embolism. Eur Respir J 2020; 55:55/6/2000448. [PMID: 32527852 DOI: 10.1183/13993003.00448-2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 04/15/2020] [Indexed: 11/05/2022]
Affiliation(s)
- Sofie Lindskov Hansen
- Dept of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Robin de Nijs
- Dept of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Jann Mortensen
- Dept of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark.,Dept of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.,Dept of Medicine, The National Hospital, Torshavn, Faroe Islands
| | - Ronan M G Berg
- Dept of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark .,Dept of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Centre for Physical Activity Research, Rigshospitalet, Copenhagen, Denmark
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Loft M, Carlsen EA, Johnbeck CB, Johannesen HH, Binderup T, Pfeifer A, Mortensen J, Oturai P, Loft A, Berthelsen AK, Langer SW, Knigge U, Kjaer A. 64Cu-DOTATATE PET in Patients with Neuroendocrine Neoplasms: Prospective, Head-to-Head Comparison of Imaging at 1 Hour and 3 Hours After Injection. J Nucl Med 2020; 62:73-80. [PMID: 32444370 DOI: 10.2967/jnumed.120.244509] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 04/24/2020] [Indexed: 12/11/2022] Open
Abstract
64Cu-DOTATATE PET/CT imaging 1 h after injection is excellent for lesion detection in patients with neuroendocrine neoplasms (NENs). We hypothesized that the imaging time window can be extended up to 3 h after injection without significant differences in the number of lesions detected. Methods: From a prospective study, we compared, on a head-to-head basis, sets of 64Cu-DOTATATE PET/CT images from 35 patients with NENs scanned 1 and 3 h after injection of 200 MBq of 64Cu-DOTATATE. The number of lesions on both PET scans was counted and grouped according to organs or regions and compared with negative binomial regression. Discordant lesions (visible on only the 1-h images or only the 3-h 64Cu-DOTATATE PET images) were considered true if found on simultaneous CT or later MR, CT, or somatostatin receptor imaging. We measured lesion SUVmax, reference normal-organ or -tissue SUVmean, and tumor-to-normal-tissue ratios calculated from SUVmax and SUVmean Results: We found 822 concordant lesions (visible on both 1-h and 3-h 64Cu-DOTATATE PET) and 5 discordant lesions, of which 4 were considered true. One discordant case in 1 patient involved a discordant organ system (lymph node) detected on 3-h but not 1-h 64Cu-DOTATATE PET that did not alter the patient's disease stage (stage IV) because the patient had 11 additional concordant liver lesions. We found no significant differences between the number of lesions detected on 1-h and 3-h 64Cu-DOTATATE PET. Throughout the 1- to 3-h imaging window, the mean tumor-to-normal-tissue ratio remained high in all key organs: liver (1 h: 12.6 [95% confidence interval (CI), 10.2-14.9]; 3 h: 11.0 [95%CI, 8.7-13.4]), intestines (1 h: 24.2 [95%CI, 14.9-33.4]; 3 h: 28.2 [95%CI, 16.5-40.0]), pancreas (1 h: 42.4 [95%CI, 12.3-72.5]; 3 h: 41.1 [95%CI, 8.7-73.4]), and bone (1 h: 103.0 [95%CI, 38.6-167.4]; 3 h: 124.2 [95%CI, 57.1-191.2]). Conclusion: The imaging time window of 64Cu-DOTATATE PET/CT for patients with NENs can be expanded from 1 h to 1-3 h without significant differences in the number of lesions detected.
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Affiliation(s)
- Mathias Loft
- Department of Clinical Physiology, Nuclear Medicine, and PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Esben A Carlsen
- Department of Clinical Physiology, Nuclear Medicine, and PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Camilla B Johnbeck
- Department of Clinical Physiology, Nuclear Medicine, and PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Helle H Johannesen
- Department of Clinical Physiology, Nuclear Medicine, and PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Tina Binderup
- Department of Clinical Physiology, Nuclear Medicine, and PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Andreas Pfeifer
- Department of Clinical Physiology, Nuclear Medicine, and PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology, Nuclear Medicine, and PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Peter Oturai
- Department of Clinical Physiology, Nuclear Medicine, and PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Annika Loft
- Department of Clinical Physiology, Nuclear Medicine, and PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Anne K Berthelsen
- Department of Clinical Physiology, Nuclear Medicine, and PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Seppo W Langer
- ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark.,Department of Oncology, Rigshospitalet, Copenhagen, Denmark; and
| | - Ulrich Knigge
- ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark.,Departments of Clinical Endocrinology and Surgical Gastroenterology, Rigshospitalet, Copenhagen, Denmark
| | - Andreas Kjaer
- Department of Clinical Physiology, Nuclear Medicine, and PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark .,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
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Carlsen EA, Johnbeck CB, Binderup T, Loft M, Pfeifer A, Mortensen J, Oturai P, Loft A, Berthelsen AK, Langer SW, Knigge U, Kjaer A. 64Cu-DOTATATE PET/CT and Prediction of Overall and Progression-Free Survival in Patients with Neuroendocrine Neoplasms. J Nucl Med 2020; 61:1491-1497. [PMID: 32111685 DOI: 10.2967/jnumed.119.240143] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 02/20/2020] [Indexed: 12/11/2022] Open
Abstract
Overexpression of somatostatin receptors (SSTRs) in patients with neuroendocrine neoplasms (NENs) is used for both diagnosis and treatment. Receptor density may reflect tumor differentiation and thus be associated with prognosis. Noninvasive visualization and quantification of SSTR density is possible by SSTR imaging (SRI) using PET. Recently, we introduced 64Cu-DOTATATE for SRI, and we hypothesized that uptake of this tracer could be associated with overall survival (OS) and progression-free survival (PFS). Methods: We evaluated patients with NENs who underwent 64Cu-DOTATATE PET/CT SRI in 2 prospective studies. Tracer uptake was determined as the maximal SUV (SUVmax) for each patient. Kaplan-Meier analysis with log-rank was used to determine the predictive value of 64Cu-DOTATATE SUVmax for OS and PFS. Specificity, sensitivity, and accuracy were calculated for prediction of outcome at 24 mo after 64Cu-DOTATATE PET/CT. Results: In total, 128 patients with NENs were included and followed for a median of 73 mo (range, 1-112 mo). During follow-up, 112 experienced disease progression, and 69 died. The optimal cutoff for 64Cu-DOTATATE SUVmax was 43.3 for prediction of PFS, with a hazard ratio of 0.56 (95% confidence interval, 0.38-0.84) for patients with an SUVmax of more than 43.3. However, no significant cutoff was found for prediction of OS. In multiple Cox regression adjusted for age, sex, primary tumor site, and tumor grade, the SUVmax cutoff hazard ratio was 0.50 (range, 0.32-0.77) for PFS. The accuracy was moderate for predicting PFS (57%) at 24 mo after 64Cu-DOTATATE PET/CT. Conclusion: In this first study to report the association of 64Cu-DOTATATE PET/CT and outcome in patients with NENs, tumor SSTR density as visualized with 64Cu-DOTATATE PET/CT was prognostic for PFS but not OS. However, the accuracy of prediction of PFS at 24 mo after 64Cu-DOTATATE PET/CT SRI was moderate, limiting the value on an individual-patient basis.
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Affiliation(s)
- Esben Andreas Carlsen
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Camilla Bardram Johnbeck
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Tina Binderup
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Mathias Loft
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Andreas Pfeifer
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Peter Oturai
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Annika Loft
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Anne Kiil Berthelsen
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark.,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
| | - Seppo W Langer
- ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark.,Department of Oncology, Rigshospitalet, Copenhagen, Denmark; and
| | - Ulrich Knigge
- ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark.,Departments of Clinical Endocrinology and Surgical Gastroenterology, Rigshospitalet, Copenhagen, Denmark
| | - Andreas Kjaer
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark .,ENETS Neuroendocrine Tumor Center of Excellence, Rigshospitalet, Copenhagen, Denmark
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Lawaetz Schultz HH, Møller CH, Møller-Sørensen H, Mortensen J, Lund TK, Andersen CB, Perch M, Carlsen J, Iversen M. Variation in Time to Peak Values for Different Lung Function Parameters After Double Lung Transplantation. Transplant Proc 2020; 52:295-301. [PMID: 31911058 DOI: 10.1016/j.transproceed.2019.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 10/08/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND Establishment of baseline values for forced expiratory volume in the first second (FEV1), forced vital capacity (FVC), or total lung capacity (TLC) is required when diagnosing and phenotyping chronic lung allograft dysfunction after lung transplant. It is generally accepted that the baseline (peak) values of these parameters occur simultaneously, but this assumption has not been substantiated for TLC. METHODS All lung function measurements in all double lung transplant recipients from a single center in the period from 1992-2014 were included. Time to baseline FEV1 was assessed according to standards from the International Society for Heart and Lung Transplantation, and time to peak FVC, TLC, and diffusion capacity for carbon monoxide were evaluated. RESULTS A total of 288 double lung transplants surviving more than 3 months after transplant were included. Baseline FEV1 occurred at a median of 0.77 years post transplant and was statistically different from median times to the peak FVC (1.02 years), to peak TLC (1.37 years), and to peak diffusion capacity for carbon monoxide 1.04 years post transplant (all log-rank P < .001). At the time of baseline FEV1, FVC, and TLC were at a mean of 96% and 95% of their peak values, respectively. CONCLUSION The peak lung function is reached at different time points for different parameters post transplant with FEV1 baseline occurring first. For most patients values of FVC and TLC obtained at time for baseline FEV1 is a good estimate of peak values, but in a small percentage of patients this procedure may jeopardize phenotyping of chronic lung allograft dysfunction based solely on lung function parameters.
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Affiliation(s)
- Hans Henrik Lawaetz Schultz
- Department of Cardiology, Section of Lung Transplantation, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.
| | - Christian Holdflod Møller
- Department of Cardiothoracic Surgery, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Hasse Møller-Sørensen
- Department of Thoracic Anaesthesia, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology, Nuclear Medicine and PET, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Thomas Kromann Lund
- Department of Cardiology, Section of Lung Transplantation, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Claus B Andersen
- Department of Pathology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Michael Perch
- Department of Cardiology, Section of Lung Transplantation, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Jørn Carlsen
- Department of Cardiology, Section of Lung Transplantation, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Martin Iversen
- Department of Cardiology, Section of Lung Transplantation, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
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Fuglø-Mortensen R, Lange P, Mortensen J. [Inhalers and inhalation techniques in the treatment of asthma and chronic obstructive pulmonary disease]. Ugeskr Laeger 2019; 181:V07180510. [PMID: 31495355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A wide catalogue of inhalers is available today as described in this review, but many patients and healthcare professionals do not know how to use inhalers correctly. However, knowledge of the working principles and pros and cons of the various inhaler types may improve patient education and the correct choice of device. Which inhaler is the best suited cannot be determined without measuring the patient's inspiration flow and controlling the ability to coordinate and handle a device. Extra-fine particles from pressurised metered dose inhalers, dry powder inhalers and soft mist inhalers give new perspectives on disease control as optimal coordination, and flow pattern is less crucial.
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Risom EC, Buggeskov KB, Mogensen UB, Sundskard M, Mortensen J, Ravn HB. Preoperative pulmonary function in all comers for cardiac surgery predicts mortality†. Interact Cardiovasc Thorac Surg 2019; 29:244–251. [PMID: 30879046 DOI: 10.1093/icvts/ivz049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 02/08/2019] [Accepted: 02/13/2019] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES Although reduced lung function and chronic obstructive pulmonary disease (COPD) is associated with higher risk of death following cardiac surgery, preoperative spirometry is not performed routinely. The aim of this study was to investigate the relationship between preoperative lung function and postoperative complications in all comers for cardiac surgery irrespective of smoking or COPD history. METHODS Preoperative spirometry was performed in elective adult cardiac surgery patients. Airflow obstruction was defined as the ratio of forced expiratory volume in 1 s (FEV1)/forced vital capacity ratio below the lower limit of normal (LLN) and reduced forced ventilatory capacity defined as FEV1 <LLN. RESULTS A history of COPD was reported by 132 (19%) patients; however, only 74 (56%) had spirometry-verified airflow obstruction. Conversely, 64 (12%) of the 551 patients not reporting a history of COPD had spirometry-verified airflow obstruction. The probability of death was significantly higher in patients with airflow obstruction (8.8% vs 4.5%, P = 0.04) and in patients with a FEV1 <LLN (8.7% vs 3.7%, P = 0.007). In the multivariate analysis were age [hazard ratio (HR) 1.6, 95% confidence interval (CI) 1.0-2.5; P = 0.04], prolonged cardiopulmonary bypass time (HR 1.2, 95% CI 1.02-1.3; P = 0.03), reduced kidney function (HR 2.5, 95% CI 1.2-5.6; P = 0.02) and FEV1 <LLN (HR 2.4, 95% CI 1.1-5.2; P = 0.03) all independently associated with an increased risk of death. CONCLUSIONS Preoperative spirometry reclassified 18% of the patients. A reduced FEV1 independently doubled the risk of death. Inclusion of preoperative spirometry in routine screening of cardiac surgical patients may improve risk prediction and identify high-risk patients. CLINICAL TRIAL REGISTRATION NUMBER NCT01614951 (ClinicalTrials.gov).
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Affiliation(s)
- Emilie C Risom
- Department of Cardiothoracic Anesthesiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Katrine B Buggeskov
- Department of Cardiothoracic Anesthesiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Ulla B Mogensen
- Department of Biostatistics, University of Copenhagen, Copenhagen, Denmark
| | - Martin Sundskard
- Department of Cardiothoracic Anesthesiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jann Mortensen
- Department of Clinical Physiology, Nuclear Medicine & PET, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Hanne B Ravn
- Department of Cardiothoracic Anesthesiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
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Christensen A, Juhl K, Kiss K, Lelkaitis G, Charabi BW, Mortensen J, Kjær A, von Buchwald C. Near-infrared fluorescence imaging improves the nodal yield in neck dissection in oral cavity cancer - A randomized study. Eur J Surg Oncol 2019; 45:2151-2158. [PMID: 31307814 DOI: 10.1016/j.ejso.2019.06.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 05/20/2019] [Accepted: 06/28/2019] [Indexed: 12/09/2022] Open
Abstract
INTRODUCTION Lymph node yield (LNY) in neck dissection has been identified as a prognostic factor in oral cavity cancer. The purpose of this study was to investigate the impact of additional use of optical imaging on LNY in therapeutic ND in oral cancer. METHODS Consecutive patients with oral squamous cell carcinoma with clinical neck metastasis planned for primary tumor resection were randomized to conventional neck dissection or near-infrared fluorescence (NIRF)-guided neck dissection, respectively. In the intervention group, patients were injected with ICG-Nanocoll prior to surgery. Intraoperatively, an optical hand-held camera system was used for lymph node identification. Also, NIRF imaging of the neck specimen was performed, and optical signals were pinned with needle markings to guide the pathological examination. The endpoint of the study was LNY per neck side in levels Ib-III. RESULTS 31 patients were included with 18 neck sides in the control group and 18 neck sides in the intervention group for evaluation. During NIRF-guided ND, individual lymph nodes could be identified by a bright fluorescent signal and individual tumor-related drainage patterns could be observed in the neck. The LNY in the intervention group was significantly higher compared to the control group (p = 0.032) with a mean of 24 LN (range: 12-33 LN in levels Ib-III compared to 18 LN (range: 10-36 LN) in the control group, respectively. CONCLUSIONS NIRF-guided ND significantly improved the nodal yield compared to the control group. Intraoperative real-time optical imaging enabled direct visualization of tumor-related drainage patterns within the neck lymphatics.
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Affiliation(s)
- Anders Christensen
- Department of Otolaryngology, Head & Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK-2100, Copenhagen East, Denmark; Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK-2100, Copenhagen East, Denmark.
| | - Karina Juhl
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK-2100, Copenhagen East, Denmark.
| | - Katalin Kiss
- Department of Pathology, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK-2100, Copenhagen East, Denmark.
| | - Giedrius Lelkaitis
- Department of Pathology, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK-2100, Copenhagen East, Denmark.
| | - Birgitte Wittenborg Charabi
- Department of Otolaryngology, Head & Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK-2100, Copenhagen East, Denmark.
| | - Jann Mortensen
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK-2100, Copenhagen East, Denmark.
| | - Andreas Kjær
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK-2100, Copenhagen East, Denmark.
| | - Christian von Buchwald
- Department of Otolaryngology, Head & Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK-2100, Copenhagen East, Denmark.
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Kristiansen J, Perch M, Iversen M, Krakauer M, Mortensen J. Lobar Quantification by Ventilation/Perfusion SPECT/CT in Patients with Severe Emphysema Undergoing Lung Volume Reduction with Endobronchial Valves. Respiration 2019; 98:230-238. [DOI: 10.1159/000500407] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 04/15/2019] [Indexed: 11/19/2022] Open
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Ladegaard P, Mortensen J, Lund L. HP-08-007 A prospective randomized placebo controlled study evaluating the effect of Low-intensity Extracorporeal Shockwave Therapy (LI-ESWT) in men with erectile dysfunction following radical prostatectomy. J Sex Med 2019. [DOI: 10.1016/j.jsxm.2019.03.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
Ventilation-perfusion scintigraphy is a functional imaging biomarker that has the potential of captivating the heterogeneity of chronic obstructive pulmonary disease (COPD). It specifically images the distribution of ventilation and perfusion within the lungs, which is a critical pathophysiological component of COPD. The extent of ventilation defects and ventilation inhomogeneity, as well as the ventilation-perfusion ratio distribution thus correlate with severity of disease. Furthermore, specific scintigraphic patterns, such as the "stripe sign" may detect centrilobular emphysematous lesions with a higher sensitivity than other imaging techniques. Although ventilation-perfusion scintigraphy may conceivably detect COPD before any specific changes can be detected by spirometry or high-resolution CT, it is currently mostly used in the workup of lung volume reduction treatment, and for diagnosing various complications and comorbidities of COPD when combined with low-dose CT.
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Affiliation(s)
- Jann Mortensen
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Department of Medicine, The National Hospital, Torshavn, Faroe Islands.
| | - Ronan M G Berg
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark; Faculty of Life Sciences and Education, University of South Wales, Pontypridd, United Kingdom
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Aanaes K, Alanin MC, Nielsen KG, Møller Jørgensen M, von Buchwald C, Høiby N, Johansen HK, Johannesen HH, Mortensen J. The accessibility of topical treatment in the paranasal sinuses on operated cystic fibrosis patients assessed by scintigraphy. Rhinology 2018; 56:268-273. [DOI: 10.4193/rhin17.243] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Hopwood MJ, Carroll D, Browning TJ, Meire L, Mortensen J, Krisch S, Achterberg EP. Non-linear response of summertime marine productivity to increased meltwater discharge around Greenland. Nat Commun 2018; 9:3256. [PMID: 30108210 PMCID: PMC6092443 DOI: 10.1038/s41467-018-05488-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 07/10/2018] [Indexed: 11/08/2022] Open
Abstract
Runoff from the Greenland Ice Sheet (GrIS) is thought to enhance marine productivity by adding bioessential iron and silicic acid to coastal waters. However, experimental data suggest nitrate is the main summertime growth-limiting resource in regions affected by meltwater around Greenland. While meltwater contains low nitrate concentrations, subglacial discharge plumes from marine-terminating glaciers entrain large quantities of nitrate from deep seawater. Here, we characterize the nitrate fluxes that arise from entrainment of seawater within these plumes using a subglacial discharge plume model. The upwelled flux from 12 marine-terminating glaciers is estimated to be >1000% of the total nitrate flux from GrIS discharge. This plume upwelling effect is highly sensitive to the glacier grounding line depth. For a majority of Greenland's marine-terminating glaciers nitrate fluxes will diminish as they retreat. This decline occurs even if discharge volume increases, resulting in a negative impact on nitrate availability and thus summertime marine productivity.
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Affiliation(s)
- M J Hopwood
- Marine Biogeochemistry, GEOMAR Helmholtz Centre for Ocean Research, Kiel, 24148, Germany.
| | - D Carroll
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, 91109, USA
| | - T J Browning
- Marine Biogeochemistry, GEOMAR Helmholtz Centre for Ocean Research, Kiel, 24148, Germany
| | - L Meire
- Royal Netherlands Institute for Sea Research, and Utrecht University, Korringaweg 7, 4401 NT, Yerseke, The Netherlands
- Greenland Climate Research Centre, Greenland Institute of Natural Resources, PO BOX 570, 3900, Nuuk, Greenland
| | - J Mortensen
- Greenland Climate Research Centre, Greenland Institute of Natural Resources, PO BOX 570, 3900, Nuuk, Greenland
| | - S Krisch
- Marine Biogeochemistry, GEOMAR Helmholtz Centre for Ocean Research, Kiel, 24148, Germany
| | - E P Achterberg
- Marine Biogeochemistry, GEOMAR Helmholtz Centre for Ocean Research, Kiel, 24148, Germany
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Risom EC, Bredahl Buggeskov K, Mogensen U, Sundskard M, Mortensen J, Berg Ravn H. Preoperative pulmonary function in all comers for cardiac surgery predicts mortality. J Cardiothorac Vasc Anesth 2018. [DOI: 10.1053/j.jvca.2018.08.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Skoradal MB, Helge EW, Jørgensen NR, Mortensen J, Weihe P, Krustrup P, Mohr M. Osteogenic impact of football training in 55- to 70-year-old women and men with prediabetes. Scand J Med Sci Sports 2018; 28 Suppl 1:52-60. [DOI: 10.1111/sms.13252] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/22/2018] [Indexed: 12/24/2022]
Affiliation(s)
- May-Britt Skoradal
- Faculty of Health Sciences; Centre of Health Science; University of the Faroe Islands; Tórshavn Faroe Islands
| | - Eva Wulff Helge
- Department of Nutrition, Exercise and Sports; University of Copenhagen; Copenhagen Denmark
| | - Niklas R. Jørgensen
- Department of Clinical Biochemistry; Rigshospitalet, Copenhagen University Hospital; Glostrup Denmark
| | - Jann Mortensen
- Department of Medicine; The Faroese National Hospital; Tórshavn Faroe Islands
- Department of Clinical Physiology; Nuclear Medicine & PET; Rigshospitalet; Copenhagen University Hospital; Copenhagen Denmark
| | - Pál Weihe
- Faculty of Health Sciences; Centre of Health Science; University of the Faroe Islands; Tórshavn Faroe Islands
- Department of Occupational Medicine and Public Health; The Faroese Hospital System; Tórshavn Faroe Islands
| | - Peter Krustrup
- Department of Sports Science and Clinical Biomechanics; SDU Sport and Health Sciences Cluster (SHSC); Faculty of Health Sciences; University of Southern Denmark; Odense Denmark
- Sport and Health Sciences; University of Exeter; Exeter UK
| | - Magni Mohr
- Faculty of Health Sciences; Centre of Health Science; University of the Faroe Islands; Tórshavn Faroe Islands
- Department of Sports Science and Clinical Biomechanics; SDU Sport and Health Sciences Cluster (SHSC); Faculty of Health Sciences; University of Southern Denmark; Odense Denmark
- Center for Health and Performance; Department of Food and Nutrition, and Sport Science; University of Gothenburg; Gothenburg Sweden
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Munkholm M, Marott JL, Bjerre-Kristensen L, Madsen F, Pedersen OF, Lange P, Nordestgaard B, Mortensen J. Reference equations for pulmonary diffusing capacity of carbon monoxide and nitric oxide in adult Caucasians. Eur Respir J 2018; 52:13993003.00677-2015. [DOI: 10.1183/13993003.00677-2015] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 05/19/2018] [Indexed: 11/05/2022]
Abstract
The aim of this study was to determine reference equations for the combined measurement of diffusing capacity of the lung for carbon monoxide (CO) and nitric oxide (NO) (DLCONO). In addition, we wanted to appeal for consensus regarding methodology of the measurement including calculation of diffusing capacity of the alveolo-capillary membrane (Dm) and pulmonary capillary volume (Vc).DLCONO was measured in 282 healthy individuals aged 18–97 years using the single-breath technique and a breath-hold time of 5 s (true apnoea period). The following values were used: 1) specific conductance of nitric oxide (θNO)=4.5 mLNO·mLblood−1·min−1·mmHg−1; 2) ratio of diffusing capacity of the membrane for NO and CO (DmNO/DmCO)=1.97; and 3) 1/red cell CO conductance (1/θCO)=(1.30+0.0041·mean capillary oxygen pressure)·(14.6/Hb concentration in g·dL−1).Reference equations were established for the outcomes of DLCONO, including DLCO and DLNO and the calculated values Dm and Vc. Independent variables were age, sex, height and age squared.By providing new reference equations and by appealing for consensus regarding the methodology, we hope to provide a basis for future studies and clinical use of this novel and interesting method.
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