Oh Mr. Ludwig, you left us with Mrs. Cross as a sub! Well she's pretty funny and easy going, but that was not the highlight of my 2nd hour on Friday. It was actually the movie dealing with heart reduction! I never really watch the videos I listen to them and get the information I need to know, but this one actually got me hooked! It was somewhere between a scary movie and a sci-fi film. My first initial thought was that this was going to be a boring movie, but once I started seeing Batista and the other doctors cut into these people it kinda thrilled me! The gorey sight of it all was a bit overwhelming, but once getting passed that and looking into the real science of it all, it's actually pretty dang interesting. I couldn't believe that Batista was performing these heart surgeries at random. But overall I guess it wasn't that big of a deal considering that in Brazil the laws of Medical Care are not as strict as the United States, but the thought of it is still scary none the less. I was actually really surprised that doctors in the U.S. adopted this style to experiment with. Although when the movie came to an end, there was one other doctor not including Batista that had performed this heart reduction procedure and out of 50 people operated on 3 resulted in death and 12 had no change. However the plus side to that was that 35 of the other patients did get better and showed great results!
Overview of a Heart Reduction
Objectives:
The efficiency of heart reduction surgery is very obsolete. The outcomes can be negative or positive depending on the improvements of the ejection fraction, decreased filling pressure, and the overall size of the heart. If these situations do not function or for fill what was thought to be done the ultimate result is heart failure. The impact on the cardiac mechanics of this type of operation is seemingly unknown.
Methods:
In most heart reduction procedures the left ventricle is divided into two functional compartments. This stimulates excisions in part of the wall. Multiple increments of mass reduction are made to the end-systolic elastance, ejection fraction, stroke volume, end-diastolic pressure and volume, and diastolic stiffness. These changes are what is hoped to better the heart, and avoid heart failure. However the heart can only take so much at a time and this procedure has to be quickly and accurately.
Results:
Changes in systolic function can be accompanied by changes in diastolic function. Although this seems to be a great outcome consequently, overall pump function can falter and be depressed. The geometric rearrangement associated with this operation leads to a reduction in wall stress for a given level of pressure. Which leads to an increase in the efficiency with which wall stress is transduced into intraventricular pressure.
Conclusion:
Overall the pump function in the heart is depressed in the short run after most initial heart reduction surgeries. However, heart reduction my also have beneficial long term implications as well. Also the change in width of ventricles during heart reduction surgery is what implies most changes and are observable through pharmacologic therapy.
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Monday, February 28, 2011
Friday, February 11, 2011
Monday, January 24, 2011
Tuesday, December 14, 2010
Chewing Lab!!!! NUM NUM NUM!!!!
Hypothesis:
Logan and I hypothesized that when we both consumed or ate the same foods our mV per second maybe different not by much but still noticeably different. We assumed this because our height and bodies are total opposites. So with that we figured that my rate of this chewing lab would be greater then hers. More mass would equal higher rate of chewing compared to the other.Materials:
-Logger Pro
-Electrode -Tabs
-Different Foods
Experiment:
In our experiment we first placed the electrode tabs on the upper and lower parts of one of our jaws and also one tab on the inside of our wrist. We hood the clips to the tabs that read into the computer program and then began testing our experiment. We began by simply recording the resting period with clenching of the jaw. From there we moved on testing different kinds of foods for about 30 to 45 seconds. Each food had a different rate and amount of time it took to chew thus proving that our jaw works harder with some foods and easier with others.
Results:
So after all the recording and chewing we had our results. And we seen that to a point we did prove our hypothesis right as for the fact that every food that Logan and I ate her rate was lower then my own. So therefor proving our hypothesis correct that overall some people chew harder or faster then others.
Wednesday, November 10, 2010
Tuesday, November 2, 2010
Bones, Bones, Bones!!!
In non-displaced fractures the bone ends after the fracture occurs still retain their normal position in the way they originated from.
Example:
However in displaced fractures the bone ends tend to be out of their normal position or alignment.
Example:
One of the most common fractures is a compound (open) fracture, where the break is clearly visible as it penetrates through the skin.
Example:
In a simple fracture (closed) the break is still apparent, but it does not penetrate through the skin
Example:
Complete fractures are when the bone is broken all the way through the bone
Example:
Incomplete fractures do not go all the way through the bone, almost as if it splinters the bone
Example:
Linear fractures are breaks that are parrallel to the longer axis of the bone
Example:
Whereas a transverse fracture breaks perpendicular to the bone's long axis
Example:
Example:
Example:
Example:
Example:
Example:
Example:
Example:
Whereas a transverse fracture breaks perpendicular to the bone's long axis
Example:
Monday, November 1, 2010
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