...appreciate for great illustrations...just a little confusing on...Y descending = emptYing....i am not fully understand why pericarditis ---> cause exaggerated y descending== ??? more emptying...????
Under normal conditions, changes in pressure of the cardiac chambers is directly transmitted to the overlying pericardium and changes in thoracic pressure are directly transmitted to the heart through the pericardium. In Constrictive pericarditis, though, it is as if the heart is suffocated in fibrous tissue of the pericardium. Which means changes in cardiac pressure will not be transmitted to the pericardium nor would changes in intrathoracic pressure. During inspiration, intrathoracic pressure drops so that has to be transmitted to the heart increasing venous return. The constriction by the fibrosed pericardium prevents that. So right atrial pressure remains high. At one point however, as early diastolic filling starts this suffocation is kinda relieved, leading to sudden rapid filling when it was previously restricted, this is responsible for the exaggerated y descent.
A wave is due to Atrial contraction V wave is due to Venous return on top of a closed valve as blood backs up A wave happens in diastole V wave happens in systole
You have great explanation skills, Mashallah! thank you Noor for taking time to share these free videos.
Thank you so much Majd, I’m glad you liked them💙
Great video 👍👍
Glad you liked it :)
Crystal clear concept thank you 😊
you're welcome! Glad it helped :)
masterpiece, noor.
Thank you!
Thank you so much 😊. Great explanation
You’re welcome!
Gold videos thank you
Anytime! Happy to help:)
...appreciate for great illustrations...just a little confusing on...Y descending = emptYing....i am not fully understand why pericarditis ---> cause exaggerated y descending== ??? more emptying...????
Under normal conditions, changes in pressure of the cardiac chambers is directly transmitted to the overlying pericardium and changes in thoracic pressure are directly transmitted to the heart through the pericardium. In Constrictive pericarditis, though, it is as if the heart is suffocated in fibrous tissue of the pericardium. Which means changes in cardiac pressure will not be transmitted to the pericardium nor would changes in intrathoracic pressure. During inspiration, intrathoracic pressure drops so that has to be transmitted to the heart increasing venous return. The constriction by the fibrosed pericardium prevents that. So right atrial pressure remains high. At one point however, as early diastolic filling starts this suffocation is kinda relieved, leading to sudden rapid filling when it was previously restricted, this is responsible for the exaggerated y descent.
Awsome
thank you :)
Difference between A wave and v wave?? Please make me understand
A wave is due to Atrial contraction
V wave is due to Venous return on top of a closed valve as blood backs up
A wave happens in diastole
V wave happens in systole
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