Important CV Equations Flashcards Preview

AS - N932 Advanced Pathology > Important CV Equations > Flashcards

Flashcards in Important CV Equations Deck (12)
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1

Flow

Q = Δ P / R
MAP/SVR

2

CO

HR x SV

3

BP

CO x SVR
HR x SV x SVR

4

Afterload

wall tension / thickness

(LVP x chamber radius) / cardiomyocyte wall thickness

5

CorrPP

ADBP - LVEDP

6

Coronary Blood Flow

CorrPP / coronary artery resistance

7

What impacts demand?

Preload
Afterload
Contractility
Heart rate

8

Cardiac Workload α

Cardiac output
LVP
Preload (volume)
Frank-Starling

9

What factors impact LVEDP?

L ventricle end diastolic pressure
- LV volume
- LV compliance
- External pressure

10

What factors impact LVP?

= LVSP
Systolic ejection α afterload
1. ADBP
2. Chamber radius
3. Outflow tract diameter
4. Wall thickness (inversely proportional)

*Impacts coronary artery demand*

11

What factors impact ADBP?

1. SVR
2. Volume (SV/CO)
3. Peripheral run-off

12

O2 Supply

CaO2 x CO = O2 delivery