Research Article
Percutaneous Closure of PFO in Patients with Reduced Oxygen Saturation at Rest and during Exercise: Short- and Long-Term Results
Table 4
Pre- and postprocedural parameters.
| | | Before PFO closure | After PFO closure | value |
| | SaO2 standing (%) | 90.2 ± 6.3 | 94.0 [92.0–97.0] | 0.014 | | Unknown | n = 3 | n = 5 | | PaO2 (mmHg) | 64.9 ± 14.4 | 77.8 ± 16.4 | 0.080 | | Unknown | n = 6 | n = 6 | | PaCO2 (mmHg) | 33.7 [28.5–38.2] | 36.8 ± 6.3 | 0.686 | | Unknown | n = 6 | n = 11 | | SaO2 standing after 6MWT (%) | 82.8 [77.0–87.8] | 92.7 ± 4.0 | 0.109 | | Unknown | n = 12 | n = 13 | | FEV1 (% of predicted) | 92.0 ± 40.9 | 95.6 ± 55.6 | 0.271 | | Unknown | n = 7 | n = 9 | | FVC (% of predicted) | 101.8 [75.8–127.2] | 104.4 ± 44.6 | 0.237 | | Unknown | n = 7 | n = 9 | | Tiffeneau-Pinelli index (FEV1/FVC) (%) | 77.6 ± 21.9 | 81.7 ± 29.5 | 0.866 | | Unknown | n = 6 | n = 9 | | PEF (% of predicted) | 100.9 ± 30.7 | 97.7 ± 32.5 | 0.173 | | Unknown | n = 8 | n = 10 | | DLCO (% of predicted) | 67.0 ± 14.4 | 64.6 ± 23.1 | 0.893 | | Unknown | n = 8 | n = 10 |
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Normally distributed values are mean ± SD; nonnormally distributed values are mean [Q1–Q3]. SaO2 = oxygen saturation; PaO2 = partial pressure of oxygen; PaCO2 = partial pressure of carbon dioxide; 6MWT = six-minute walk test; FEV1 = forced expiratory volume in 1 second; FVC = forced vital capacity; PEF = peak expiratory flow; DLCO = diffusing capacity for carbon monoxide.
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