Around 20% to 25% of individuals with rapidly declining FEV1/FVC trajectories experienced wheezing and usual ...

Two distinct groups were identified, those with normal maximum voluntary ventilation (MVV) (> 80% predicted) and those with low MVV. Both inspiratory and expiratory flow rates (FVC, FEV1 ...

PRISm was defined as FEV1/FVC ≥ 0.7 with FEV1% < 80% of the predicted value ... high >3.5), and BMI based on WHO classifications (low-normal, overweight, obese). Education level was categorized as ...

rather than relying solely on the FEV1/FVC ratio. For instance, patients who smoke with symptoms but normal spirometry (phenotype B) or those with abnormal spirometry but no symptoms (phenotype C) ...

Spirometry was performed at baseline and at follow-up, with incident COPD defined using a lower limit of normal criterion for postbronchodilator FEV1/FVC. Only participants without COPD and without ...

PRISm was defined as forced expiratory volume in 1 second (FEV 1) of less than 80% predicted and an FEV 1 /forced vital capacity (FVC) ratio of at least 0.7 on spirometry ... PRISm was associated with ...

1 The George Institute for Global Health, UNSW, Sydney, Australia 2 The George Institute for Global Health, Imperial College London, London, UK 3 Harefield Respiratory Research Group, Guy’s and St ...

Preserved ratio impaired spirometry (PRISm) is associated with an increased risk of all-cause, cardiovascular, and respiratory mortality.

The nearly decade-long study showed that higher hemoglobin levels in men were associated with better lung function, including significant improvements in forced vital capacity (FVC), forced expiratory ...

Therefore, for the question of whether NPPV should be initiated, polygraphy does not provide useful additional information if the FVC is already <75% as predicted. However, in patients with more or ...