Flashcards in Splanchnic Viscera- Exam 1 Deck (84)
What is viscera?
Pertaining to the internal organs located within the ventral body cavity
Where is the thoracic cavity?
Above the diphragm
What cavities are contained within the thoracic cavity?
Left pleural cavity
Right pleural cavity
Mediastinal cavity (includes pericardial)
What are the two cavities within the abdominopelvic cavity?
stomach, liver, spleen, GI Pancreas, kidneys
Last part of the large intestines and reproductive organs
What do body cavities do?
Body cavities protect organs and allow space for organ movement like inflation of lungs or contraction of heart
Refer to the vasculature within the abdominopelvic cavity priot to the iliac bifurcation of renal vessels
What is not considered part of the splanchnic system due to positioning function?
Direct aortic and IVC drainage
What are the limitations of research?
Small sample size
Difficulty in monitoring abdominal viscera and correlating to outcomes
Controlling for other variables
Updated Research: Incidence of GI Complication
Updated Research: LOS
19.3 vs 8.8
Updated Research: Inpatient Mortality
12.0% vs 2.5%
Risk Factors for Mortality of CPB and Splanchnic Circulation
Age > 65
Stores and breaks down ingested food via acids and enzymes (chyme); release into the small intestine controlled by pyloric sphincter
pulpy acidic fluid that passes from the stomach to the small intestine, consisting of gastric juices and partly digested food
What percent of nutrient absorption occurs in the small intestine?
How long is the small intestine?
First 10'' serves as "mixing bowl" for chyme and digestive enzymes from liver and pancreas
Approx 8'', primary site of chemical digestion and nutrient absorption
Approx 12' last section before large intestine. Large [ ] of lymphoid nodules to protect SI from bacteria in LI
How long is the large intestine?
What happens in the large intestine?
Small amount of nutrient absorption, primarily vitamins from bacterial byproducts, fluid, and bicarb reabsorption; compaction and storage of chyme into fecal matter
CPB and GI Effects
CPB results in an increase in intestinal blood flow due to decrease in R
Increase in BF independent of T, pH, or pCO2. *Autoregulation
Most studies show slight decrease in pH, but did not correlate to negative outcome
Intestinal BF during CPB seems to be independent of MAP and dependent on Q
Extensive use of what during CPB exacerbates the risk of inadequate mesenteric perfusion?
What's the incidence of GI complications in cardiac surgery?
What's the level of mortality in the GI instances in cardiac surgery?
Risk = probability x severity
Production of digestive enzymes and buffers (NaHCO3) to neutralize acidic chyme