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A patient with stenosed mitral valve has mean pressure drop of 12 mm-Hg across the mitral valve_ Heart rate is 60 bpm Lefi ventricular end-diastolic volume an...

Question

A patient with stenosed mitral valve has mean pressure drop of 12 mm-Hg across the mitral valve_ Heart rate is 60 bpm Lefi ventricular end-diastolic volume and lefl ventricular end- systolic volume are 144 and 61 mL, respectively. Determine cardiac output of the patient, (b) the effective valve orilice area 0f the mitral valve by using the Gorlin Equation. (c) the severily of mitral stenosis (i.e , is it mild, moderate_ and severe?) . Current AHAIACC guideline for the management of patie

A patient with stenosed mitral valve has mean pressure drop of 12 mm-Hg across the mitral valve_ Heart rate is 60 bpm Lefi ventricular end-diastolic volume and lefl ventricular end- systolic volume are 144 and 61 mL, respectively. Determine cardiac output of the patient, (b) the effective valve orilice area 0f the mitral valve by using the Gorlin Equation. (c) the severily of mitral stenosis (i.e , is it mild, moderate_ and severe?) . Current AHAIACC guideline for the management of patients with valvular heart disease consider mitral stenosis mild when the mitral valve effective orilice area is >1.5 cm? moderate when the effective orilice area is between [.0 and [.5 cm" , and severe the effective orilice area is < ].0 cm? Aoia Laalrl Rani 3inmn Mira vat? stanss & 8oojio" an vamnzi R ght ventricle



Answers

Cardiology The aortic pressure-diameter relation in a particular patient who underwent cardiac catheterization can be modeled by the polynomial$D
(p)=0.000002 p^{3}-0.0008 p^{2}+0.1141 p+16.683$ $55 \leq p \leq 130$
where $D(p)$ is the aortic diameter (in millimeters) and $p$ is the aortic pressure (in $\mathrm{mm}$ Hg). Determine where this function is increasing and where it is decreasing within the interval given
above, Source: Circulation.

In this question. It is about the blood flow in from the heart to the into the aorta. Okay, so, um, the doctor measures of 6000 hertz frequency shift our when he uses 2.5 megahertz off ultrasound so we can use that to find a speed off the blood flow in order. So, in part, A, we'll be using All right, Delta Air. If it goes two f times we owe, I ve Okay. So, uh oh, yes. Ah, don't call s pounds be divide by two f. So the daughter FB 6000 me and then the frequency is 2.5 megahertz, and then the speed is 1540 Okay, so complete this, and then you get the speed of blood flow to be 1.8 m per second. Okay. Okay. So this is the answer for part A and part B. We need to calculate a pressure difference in the blood pressure. The difference in blood pressure between the inside the hearts and the order. Okay, So to do this are using the Bernoulli's equation easy. The new lease equation. Okay, so we have key one good plus half. Roll me one square equals two p two plus have a role be to square. Okay, so we are given that, uh, everyone is equal to zero. So one is the heart and two is the aura. Okay, so we want is equal to zero, and then we want to find the pressure difference. Um, so p one minus p two is equal to have grow B two square. Okay, so this is equal to have times 1060 times, 1.8 square. What? So you calculate this, you get the pressure difference to be, um 1810 Hi, Scott. Well, so this is the pressure difference between the heart and the aura. Okay, And that's all for this question.

You got certain poisonous. That pressure more than die. Both. You feel Stevie Green too, While you won't try it. This 25 sign reading 60 by D with Bielski is a brochure. Isn't there a pitched G And the time the measurements. But so this party he has designed for BD it, I off key. Amy, don't be asleep. Ojul. Yeah, was getting this one fight this being it fired, son, once it's t by in you, there's a little you don't Okay, once it's state by when she advised feed it off bs to invite. Do you buy like it and should sleep make you drew by? Do I look by one said Steve by. It was going to be one body 18 months. Yeah, well, we have to find. Then you're off heartbeats the minute. So here are given. Each Harvick gives one by 18 minutes, which implies number of heartbeats from little B 80 beats both married. And this function can be the person to That's a sign. Go. And for option C, we have to graft function. Whose breast? Oh, you've daisy Winter long. One time this treaty snubbing lines. It stood by de as is a vertical shift off 115 year and the amplitude is 25. Dreams this room plus 25 +115 plus really five 2115 minus really five, then one completely. Here you still one by a D and there is no friendship. That is a lot of sunken shift. If one option ding overcorrect issue is Steven, I was reading off 1 2080 your former greediness and I'll save me Dick. We take the reading, for example, today the leading 1. 40 90. This can get a present it in a graph you're in this graph the gulf covered by green shape. It's going to be 1 28 to just consider lives normally. And here the blue 100 persons 1 40 by 19 which is always. Will the goal off a function feel steep? Therefore, the normal reading seems to be nova, then took even reading 1 40 90 which implies it wasn't lights one so d 90


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