SIRS/Sepsis ppt-josh Flashcards
WHO IS THE ONLY WHITE PERSON MIKE LIKES
Hippocrates
(prob b/c he’s dead)
Sepsis is the 2nd leading cause of death in the non-coronary ICU pt’s, dispite inproved care, mortality remains b/t __-__%
30-50%
what is the systemic inflammatory response to a wide variety of severe clinical insults
SIRS
SIRS:
is manifested by TWO or MORE of the following conditions!! what are those 4 conditions???
- Temp >38 C or < 36 C
- HR > 90 bpm
- RR > 20 bpm (or PaCO2 < 32)
- WBC- >12,000 or < 4,000 (or >10% bands)
basically is i walk to the mailbox i get SIRS
WHat is a systemic inflammatory response to an insult to a host, in association w/ infection.
Sepsis:
Sepsis:
what are the clinical manifestations for Sepsis:
same as for SIRS
Sepsis vs SIRS
is they manifest themselves the same how do you differentiate them?
Sepsis:- includes 2 or more of the mentioned conditions but 2ndary to a documented infection
Sepsis:
severe sepsis is associated w/ what 2 things?
Organ dysfunction
or hypotension
Severe Sepsis:
S/s
- Hypoperfusion and perfusion abnormalities may include
- Lactic acidosis
- oliguria
- AMS
Sepsis:
What are examples of potent stimulus for activation of an inflammatory response (4)
- trauma
- Surgery
- Organ dysfuntion
- Infection w/ microorganisms or viruses
Sepsis:
SO what is the patho for this?
Endogenous sensing mechanisms initiate a response NOT specifically for the reconition of infection BUT rather in response to biochemicals that suggest imminent threat to host
Sepsis:
what are some of the biochemical markers
- Cytolines
- TNF-a
- IL-1-6-8
- PAF
- Prostaglandins
- Leukotrienes
- Neutrophil
- Complement system
- Vascular endothelial cells
- Clotting and kinin cascades
- Thromboxane
- prostacyclin
- prostaglandin
Sepsis:
what is the effect that the biomarkers couse in the body
- Vasodilation
- Incrreased Capillary Permeability
- Cellular activation
- Coagulopathy
Sepsis/SIRS: Anesthesia management
what is the central treatment to sucessful treatment of a pt w/ severe sepsis
Srugical removal of impurity
early antimicrobial therapy
Sepsis/SIRS: Anesthesia management
in High-risk surgical or trauma pt’s w/ sepsis, early ________ optimization before the development of organ failure reduced mortality by 23%
hemodynamic
SvO2:
what is it?
saturated venous oxygen
SvO2:
has an _____ relationship to oxygen utilization in fully saturated blood!
Inverse
(lower SvO2: is the more O2 used)
SvO2:
has a _____ relationship to CO and Hemoglobin
Direct
(one goes up the other goes up as well)
SvO2:
w/ constant O2 consumption, mixed venous O2 saturation demonstrates the balance b/t what?
Oxygen delivery and oxygen demand
SvO2:
SvO2 is the result of O2 consumption @ the ____ level!
Tissue
SvO2:
it is the result os O2 consumption at the tissue level. this is measured as the _________
Oxygen Extraction Ration ( O2ER)
SvO2:
What is the Normal O2ER value
24-28%
SvO2:
what is the Calculation for the O2ER?
O2ER = SaO2 - SvO2 / SaO2
- SaO2 - Arterial O2 sat
- SvO2 - mixed venous O2 sat
SvO2:
does a normal SvO2 alone show the status of specific organ perfusion
Nope