Which physical finding is commonly present in cardiac tamponade?

Which physical finding is commonly present in cardiac tamponade?

• A. Muffled heart sounds
• B. Loud holosystolic murmur at apex
• C. Pulsus paradoxus only
• D. Edema of legs

Answer: (A)

In cardiac tamponade, fluid around the heart increases pressure around the chambers, preventing the heart from filling properly during diastole. This leads to reduced preload, lower stroke volume, and hypotension. The extra fluid physically dampens the sounds of the heart, so auscultation often reveals muffled or distant heart sounds, a hallmark clue to tamponade. Pulsus paradoxus can occur because inspiration further decreases left-sided filling in this obstructive setting, but it isn’t present in every case and isn’t as consistently observed as muffled heart sounds. A loud holosystolic murmur at the apex points to mitral regurgitation, not tamponade. Leg edema reflects longer-standing venous congestion rather than the acute, rapid filling limitation seen in tamponade. So muffled heart sounds best capture the common physical finding in this scenario.

In cardiac tamponade, fluid around the heart increases pressure around the chambers, preventing the heart from filling properly during diastole. This leads to reduced preload, lower stroke volume, and hypotension. The extra fluid physically dampens the sounds of the heart, so auscultation often reveals muffled or distant heart sounds, a hallmark clue to tamponade.

Pulsus paradoxus can occur because inspiration further decreases left-sided filling in this obstructive setting, but it isn’t present in every case and isn’t as consistently observed as muffled heart sounds. A loud holosystolic murmur at the apex points to mitral regurgitation, not tamponade. Leg edema reflects longer-standing venous congestion rather than the acute, rapid filling limitation seen in tamponade. So muffled heart sounds best capture the common physical finding in this scenario.