Dual test gas pulmonary diffusing capacity in patients with idiopathic scoliosis 40 years after diagnosis
Abstract There is limited knowledge on diffusing capacity in scoliosis patients. It remains to be determined if impaired pulmonary diffusing capacity is mostly influenced by reduced alveolar–capillary membrane diffusing capacity (DM, CO), reduced pulmonary capillary blood volume (VC) or both. This s...
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| Format: | Article |
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Wiley
2025-04-01
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| Series: | Experimental Physiology |
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| Online Access: | https://doi.org/10.1113/EP092251 |
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| author | Rie S. Thomsen Milan Mohammad Lærke C. Ragborg Casper Dragsted Søren Ohrt‐Nissen Martin Gehrchen Benny Dahl Ronan M. G. Berg Jann Mortensen |
| author_facet | Rie S. Thomsen Milan Mohammad Lærke C. Ragborg Casper Dragsted Søren Ohrt‐Nissen Martin Gehrchen Benny Dahl Ronan M. G. Berg Jann Mortensen |
| author_sort | Rie S. Thomsen |
| collection | DOAJ |
| description | Abstract There is limited knowledge on diffusing capacity in scoliosis patients. It remains to be determined if impaired pulmonary diffusing capacity is mostly influenced by reduced alveolar–capillary membrane diffusing capacity (DM, CO), reduced pulmonary capillary blood volume (VC) or both. This study aims to report findings from dual test gas pulmonary diffusing capacity for carbon monoxide and nitric oxide (DL, CO, NO) with quantification of pulmonary diffusing capacity for carbon monoxide corrected for haemoglobin with a five s breath‐hold (DL, COc, 5s) and nitric oxide with a five s breath‐hold (DL, NO, 5s), DM, CO and VC. The study included 57 patients with idiopathic scoliosis seen at our department from 1972 to 1983, all of whom underwent radiological assessment and measurement of DL, CO, NO during examination 40 years after diagnosis. One‐way ANOVA was performed for between‐group differences and Pearson's correlation coefficient was used to assess correlations between DL, CO, NO metrics and Cobb angle. No significant between‐group differences based on disease severity were detected. Thirty‐nine percent of the patients were presented with either reduced DL, COc, 5s or reduced DL, NO, 5s represented as Z‐scores below −1.65. No significant correlations between Cobb angle and Z‐scores for DL, COc, 5s, DL, NO, 5s, DM, CO and VC according to height measurements were found. When using arm span instead, a weak negative correlation between DL, COc, 5s and Cobb angle (r = −0.29; P = 0.04) was detected. In conclusion, approximately 39% of patients with idiopathic scoliosis had either reduced DL, COc, 5s or reduced DL, NO, 5s 40 years after diagnosis with varying contributions from VC or DM, CO. |
| format | Article |
| id | doaj-art-b928a5e936c7441fb68f0d69a99dee2b |
| institution | DOAJ |
| issn | 0958-0670 1469-445X |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Experimental Physiology |
| spelling | doaj-art-b928a5e936c7441fb68f0d69a99dee2b2025-08-20T03:06:17ZengWileyExperimental Physiology0958-06701469-445X2025-04-01110461062210.1113/EP092251Dual test gas pulmonary diffusing capacity in patients with idiopathic scoliosis 40 years after diagnosisRie S. Thomsen0Milan Mohammad1Lærke C. Ragborg2Casper Dragsted3Søren Ohrt‐Nissen4Martin Gehrchen5Benny Dahl6Ronan M. G. Berg7Jann Mortensen8Centre for Physical Activity Research Copenhagen University Hospital – Rigshospitalet Copenhagen DenmarkCentre for Physical Activity Research Copenhagen University Hospital – Rigshospitalet Copenhagen DenmarkSpine Unit, Department of Orthopaedic Surgery Copenhagen University Hospital – Rigshospitalet Copenhagen DenmarkSpine Unit, Department of Orthopaedic Surgery Copenhagen University Hospital – Rigshospitalet Copenhagen DenmarkSpine Unit, Department of Orthopaedic Surgery Copenhagen University Hospital – Rigshospitalet Copenhagen DenmarkSpine Unit, Department of Orthopaedic Surgery Copenhagen University Hospital – Rigshospitalet Copenhagen DenmarkSpine Unit, Department of Orthopaedic Surgery Copenhagen University Hospital – Rigshospitalet Copenhagen DenmarkCentre for Physical Activity Research Copenhagen University Hospital – Rigshospitalet Copenhagen DenmarkDepartment of Clinical Medicine, Faculty of Health and Medical Sciences University of Copenhagen Copenhagen DenmarkAbstract There is limited knowledge on diffusing capacity in scoliosis patients. It remains to be determined if impaired pulmonary diffusing capacity is mostly influenced by reduced alveolar–capillary membrane diffusing capacity (DM, CO), reduced pulmonary capillary blood volume (VC) or both. This study aims to report findings from dual test gas pulmonary diffusing capacity for carbon monoxide and nitric oxide (DL, CO, NO) with quantification of pulmonary diffusing capacity for carbon monoxide corrected for haemoglobin with a five s breath‐hold (DL, COc, 5s) and nitric oxide with a five s breath‐hold (DL, NO, 5s), DM, CO and VC. The study included 57 patients with idiopathic scoliosis seen at our department from 1972 to 1983, all of whom underwent radiological assessment and measurement of DL, CO, NO during examination 40 years after diagnosis. One‐way ANOVA was performed for between‐group differences and Pearson's correlation coefficient was used to assess correlations between DL, CO, NO metrics and Cobb angle. No significant between‐group differences based on disease severity were detected. Thirty‐nine percent of the patients were presented with either reduced DL, COc, 5s or reduced DL, NO, 5s represented as Z‐scores below −1.65. No significant correlations between Cobb angle and Z‐scores for DL, COc, 5s, DL, NO, 5s, DM, CO and VC according to height measurements were found. When using arm span instead, a weak negative correlation between DL, COc, 5s and Cobb angle (r = −0.29; P = 0.04) was detected. In conclusion, approximately 39% of patients with idiopathic scoliosis had either reduced DL, COc, 5s or reduced DL, NO, 5s 40 years after diagnosis with varying contributions from VC or DM, CO.https://doi.org/10.1113/EP092251alveolar–capillary membrane diffusing capacityCobb anglelung functionpulmonary capillary blood volumespine surgery |
| spellingShingle | Rie S. Thomsen Milan Mohammad Lærke C. Ragborg Casper Dragsted Søren Ohrt‐Nissen Martin Gehrchen Benny Dahl Ronan M. G. Berg Jann Mortensen Dual test gas pulmonary diffusing capacity in patients with idiopathic scoliosis 40 years after diagnosis Experimental Physiology alveolar–capillary membrane diffusing capacity Cobb angle lung function pulmonary capillary blood volume spine surgery |
| title | Dual test gas pulmonary diffusing capacity in patients with idiopathic scoliosis 40 years after diagnosis |
| title_full | Dual test gas pulmonary diffusing capacity in patients with idiopathic scoliosis 40 years after diagnosis |
| title_fullStr | Dual test gas pulmonary diffusing capacity in patients with idiopathic scoliosis 40 years after diagnosis |
| title_full_unstemmed | Dual test gas pulmonary diffusing capacity in patients with idiopathic scoliosis 40 years after diagnosis |
| title_short | Dual test gas pulmonary diffusing capacity in patients with idiopathic scoliosis 40 years after diagnosis |
| title_sort | dual test gas pulmonary diffusing capacity in patients with idiopathic scoliosis 40 years after diagnosis |
| topic | alveolar–capillary membrane diffusing capacity Cobb angle lung function pulmonary capillary blood volume spine surgery |
| url | https://doi.org/10.1113/EP092251 |
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