Heart failure left ventricular systolic dysfunction" and "systolic heart failure". HFrEFe is associated with an ejection fraction of less than 40%. 2) Heart failure with preserved ejection fraction (HFpEF). Synonyms no longer recommended include "diastolic heart failure" and "heart failure with normal ejection fraction". HFpEF occurs when the left ventricle contracts normally during systole, but the ventricle is stiff and does not relax normally during diastole, which impairs filling. Heart failure symptoms are traditionally and somewhat arbitrarily divided into "left" and "right" sided, recognizing that the left and right ventricles of the heart supply different portions of the circulation. However, heart failure
I Belong to You/How Many Ways I Belong to You/How Many Ways "I Belong to You"/"How Many Ways", alternatively "How Many Ways"/"I Belong to You" in the vinyl edition, is the fifth and final single from American R&B singer Toni Braxton's self-titled debut album, "Toni Braxton" (1993). The single was released in the United States in 1994 with both songs as double-sided songs. "I Belong to You" was written by Vassal Benford and Ronald Spearman and produced by Benford. While there was no music video for "I Belong to You", the song garnered Braxton a nomination for Best Female R&B Vocal Performance at the 1996 Grammy