Cardiogenic shock in pediatric patients Flashcards Preview

Year 2 Cardiovascular > Cardiogenic shock in pediatric patients > Flashcards

Flashcards in Cardiogenic shock in pediatric patients Deck (19):
1

definition: CO

SV x HR

2

definition: cardiogenic shock

heart fails as a pump to provide adequate circulation to meet the metabolic needs of the body

3

equation: BP

CO plus systemic vascular resistance (SVR)

4

is CO mroe strongly influenced by HR or SV? why?

HR

children do not have as much ventricular muscle mass

5

what is the response to decreased CO in children?

VT

6

what does it mean when kids have VT?

cardiogenic shock

7

SV is dependent upon which three factors?

preload
contractility
afterload

8

what are the effects on preload, afterload, and contractility in cardiogenic shock?

increased preload
increased afterload
DECREASED contractility

9

what are the effects on preload, afterload, and contractility in hypovolemic shock?

decreased preload
increased afterload
normal contractility

10

what are the general (and specific) causes of cardiogenic shock?

acquired - rheumatic fever, cardiomyopathies
non-cardiac - pneumothorax, hyperkalemia, hypocalcemia
congenital heart disease - large ventricular septal defects

11

what is the child's principal means of maintaining CO?

tachycardia

12

what studies / tests are done to assess and diagnose cardiogenic shock? which is most specific?

ECG
chest radiography
ECHOCARDIOGRAPHY (most specific)

13

what lab tests are done to assess and diagnose cardiogenic shock? which is most crucial?

glucose (most crucial)
electrolytes
calcium
blood gases
cardiac enzymes
viral titers

14

what is the goal of treating cardiogenic shock?

improve oxygen delivery to all organs

15

neonates with ductal-dependent lesions in cardiogenic shock should be treated with what agent? why?

PGE1

maintain patent ductus arteriosus

16

when should you use PGE1?

neonates with ductal-dependent lesions in cardiogenic shock to maintain patent ductus arteriosus

17

what agents can be considered early to prevent volume overload in cardiogenic shock?

inotropic agents - DA, dobutamine, EPI

18

which agents increase SV by reducing afterload?

milrinone
nitroprusside
inhaled NO

19

which agents should be avoided in cardiogenic shock because of their potent vasoconstrictive effects, worsening afterload?

phenylephrine and NE