Impact of Sarcopenia on Mortality in Patients Undergoing TAVI: A Follow-Up Study

Figures

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  Figure 1. LOESS plot of the relationship between normal-density muscle area and mortality. The x-axis represents the normal-density muscle area, while the y-axis shows the proportion of deceased patients. Blue dots represent individual patient observations, while the red line indicates the LOESS-smoothed trend, illustrating the overall pattern of association without assuming a predefined functional form. As shown in the figure, the relationship between normal-density muscle and mortality indicates that death is more likely when the normal-density muscle area is less than 10 cm2/m2, plateaus between 10 and 20 cm2/m2, and is highly unlikely when it exceeds 20 cm2/m2.

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  Figure 2. Kaplan–Meier survival curve by subgroup (A—Blue: No Sarcopenia; B—Red: Sarcopenia) adjusted for age, sex, BMI, respiratory disease, diabetes mellitus, atrial fibrillation, and need for a pacemaker.

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  Figure 3. Correlation matrix of body composition parameters at T12 and L3 measured by CT. Values represent the Spearman’s rank correlation coefficient, rho (ρ) between body composition measured at T12 and L3; both CT scans were performed on the same date. * indicates p-value < 0.05, and ** indicates p-value < 0.001. Significant negative correlations are shown in orange and significant positive correlations in blue. Color intensity increases with the magnitude of correlation. White-colored cells indicate a nonsignificant correlation. T12 and L3 preceding the composition parameter indicate whether it is at the level of the T12 or L3 vertebra. HDMA, high-density muscle area; IMFA, intermuscular fat area; LDMA, low-density muscle area; NMDA, normal-density muscle area; TMA, total muscle area; VFA, visceral fat area; VHDMA, very high-density muscle area; VLDMA, very low-density muscle area.