Vaping causes an acute BMI-dependent change in pulmonary blood flow.

Comparison between a high BMI vaping group (BMI >25 kg/m 2 , N = 6) and low/normal BMI vaping group (BMI ≤25 kg/m 2 , N = 8) showed that, on average, those with a low/normal BMI had an increase in perfusion after vaping (mean change in Q = +0.1 mL/min/mL or + 10%), while those with a higher BMI had on average a reduction in blood flow (mean change in Q = −0.15 mL/min/mL or − 2%), although this did not reach statistical significance ( p = 0.089, Figure 4 ). 3.3.5.

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