Bougie Size- Infamous Pen Photo-Question ???
http://en.wikipedia.org/wiki/French_catheter_scale
So basically, "French" is a unit of measure equal to the diameter of a tube in millimeters x 3
e.g.: a 30 French catheter or bougie has a diameter of 10 mm, 36 is 12 mm, etc.
So the diameter of a 32 compared to a 40 should be 25% greater...
But the cross-sectional area defines the restriction, and that's defined as radius squared x pi.
Plugging the same numbers in, a 40 French bougie has 56.25% greater cross-sectional area than a 32 French.
(yes I'm a math nerd...)
What any of this may or may not have to do with the amount of actual restriction an individual person feels remains a mystery to me...
http://en.wikipedia.org/wiki/French_catheter_scale
So basically, "French" is a unit of measure equal to the diameter of a tube in millimeters x 3
e.g.: a 30 French catheter or bougie has a diameter of 10 mm, 36 is 12 mm, etc.
So the diameter of a 32 compared to a 40 should be 25% greater...
But the cross-sectional area defines the restriction, and that's defined as radius squared x pi.
Plugging the same numbers in, a 40 French bougie has 56.25% greater cross-sectional area than a 32 French.
(yes I'm a math nerd...)
What any of this may or may not have to do with the amount of actual restriction an individual person feels remains a mystery to me...
OK math nerd....(your words)
There is another factor......which is variable and hard to calculate..... the larger the sleeve...the more stretchy tissue is retained and can eventually stretch exponentially.
frisco
SW 338lbs. GW 175lbs. Goal in 11 months. CW 148lbs. WL 190lbs.
" To eat is a necessity, but to eat intelligently is an art "
VSG Maintenance Group Forum
http://www.obesityhelp.com/group/VSGM/discussion/
CAFE FRISCO at LapSF.com
Dr. Paul Cirangle
on 3/31/12 1:56 pm
What causes the pyloric valve to close? To me it feels that my pyloric valve never closes but that the food i have eaten just gets crowded in the small stomach.
What causes the pyloric valve to relax?
Is there anything i can do to enhance restriction?
At how many months is the new stomach considered mature where it reaches its maximum capacity?
This subject is very interesting.
- Donna
55 y.o. 5'4" HW: 180's CW: 127 Doctor's GW: 130 My GW: 117
~ working on reaching goal again after regain
Here is a re-post of a re-post.......
Post Date: 3/5/12 3:44 am
The Pyloric Valve.....the most not talked about function that will answer a lot of questions.
If you understand the Pyloric Valve function......things will be a lot easier and explain why we need to do certain things.......
Post Date: 10/5/11 5:58 pm
First, I’m not a doctor nor have I ever played one on TV.
This is a level one explanation.....there is more to it....but if you understand this....it will make some sense.
This may be old news to some..... But I’ve noticed a lot of people who have had VSG do not have any idea how the Pyloric Valve works.
This is my understanding how the Pyloric Valve works.
The Pyloric Valve function and how it pertains to your VSG.
The function of your Pyloric valve is the single most not talked about important part of understanding how and when you should eat and drink.
The Pyloric Valve is just that....It is a valve that is located at the bottom of your stomach/sleeve. This valve is in between your sleeve and the small intestine. The basic definition of a valve is an apparatus that opens and closes.
When open this valve it is about the diameter of a dime. When closed it’s opening is closed down to the diameter of the head of a ballpoint pen.
Dense proteins and harder to digest foods will cause the Pyloric valve to close to hold the food in your stomach for pre-digestion...... stomach acids breaking down this “RoughÂ" food.
That’s why we are told to eat dense proteins first.....To close the Pyloric Valve so food stays in your stomach/sleeve longer so we have a sense of satisfaction.
It takes about 30-60 minutes for the food to clear the Pyloric Valve...... Than it’s OK to drink.
That is also where the term slider food comes into play. A slider food does not close the Pyloric Valve and as the term is intended.....food slides right past an open Pyloric Valve.
So now the other half of the Pyloric Valve function..... You eat a dense protein like chicken that causes your Pyloric Valve to close. Say for example your sleeve has a 4oz. capacity.....and you eat 4oz. of chicken.....your sleeve is full and holding all 4 oz. of chicken for pre-digestion because your Pyloric Valve is closed.
So now try and drink something....where is it gonna go? Up.....Up until it hits another valve of sorts..... the Esophageal Sphincter (valve) and above that is a flapper valve. The function of these two valves is to hold food, bile and stomach acids in your stomach and not backing up into your air way. This is a very high pressure system. Thats why when you eat to much or drink after eating a hard to digest food and your Pyloric is closed.....It hurts cause you pressurized your intake track. Vomiting would be a natural pressure release.
So you can see how learning and understanding how the Pyloric Valve works is important as it pertains to eating and drinking with a Gastric Sleeve.
So that was kinda like VSG and the Pyloric Valve 101
As you get further a long you will want to use the Pyloric Valve in other ways to keep food in your sleeve longer to stay satisfied longer.
A sleeve empties faster than a stock un altered full size stomach so sometimes it’s beneficial for you to learn what foods stay in your sleeve longer to extend satisfaction.
Dense proteins are #1 in closing the Pyloric Valve. Chicken, steak, pork, fish.....in that order seems to be the way it goes for me.
Other foods that are hard to digest and help close the Pyloric Valve are foods like:
- Broccoli Stalk
- Asparagus
- Celery
- Cucumber with Skin
- Radish
- Cabbage (I’m testing this right now)
- Bell Pepper
So I hope you understand my 5 cent tour of the Pyloric Valve and how it effects the way we eat with a VSG and how important it is to work the Pyloric Valve to your benefit.
frisco
SW 338lbs. GW 175lbs. Goal in 11 months. CW 148lbs. WL 190lbs.
" To eat is a necessity, but to eat intelligently is an art "
VSG Maintenance Group Forum
http://www.obesityhelp.com/group/VSGM/discussion/
CAFE FRISCO at LapSF.com
Dr. Paul Cirangle
on 3/31/12 2:27 pm - dubai, United Arab Emirates
anyway i guess ill just have to let it go and pray he will do the right thing for me but i sure need the resriction to last.
But here's the kicker, in the last 3 weeks I have noticed that my restriction is getting tighter. I am down to about 2-3oz dense protein and an ounce of veg.
I am finding this as shocking as anyone and have not pinpointed why. I do know I have upped my exercise and also lost my job so am at home and moving not sitting at a desk all day.
Oh I have a 40f bougie. Here is a sample of what I eat now
B: protein shake
L: 8 mini club crackers with cheese and 5 beef little smokies
D: 2.5ounce burger patty with cheese, 1/4 cup salad ****burg, cucumber & tomato) and a little ranch dressing and some sauce for burger
Sometimes a snack during the day of a string cheese
Water, water, water...and on some days a couple sips of flat diet soda in the morning about 1/4 cup at very very most
Carrie HW: 334/Preop Appt W: 328/SW: 313/CW: 2
preop: -21lbs, month 1: -28lbs, month 2: -16lbs, month 3: -18lbs, month 4: -11lbs,
month 5: -11lbs, month 6: -7lbs, ...all the way down. NOTE: after slacking I got back on track in Nov (month 12) and have lost 16lbs so far!
on 3/31/12 4:21 pm - dubai, United Arab Emirates
its known that the capacity of the sleeve stays the same as 6 - 8 months post op.
so if this is true if i try to not stretch it in this period of time, will it still stretch after that ???
do you know what i mean? am i making any sense?
say that if i try to eat around 1.5 oz of protein in the first 9 months , rather than 3 - 4 oz , will my sleeve stay unstretched or can it still stretch years later .
and if it can stretch years later how come ppl post that they reached maximum sleeve capacity at 6 or 8 months post op.???
