| Reference (year) |
Type of study |
Study location |
Period of follow-up |
N * |
Tipe of surgery ** |
age |
Sex*** |
Type of medication |
Type of administration |
Individual |
Doses |
Time of medical therapy |
Conclusion |
|
Vasconcelos RS et. al 2010
25
|
Case Series |
Brazil |
From 7 to 22 months |
n=29 |
RYGB |
>18 years |
F |
Calcium e Vitamin D |
(tablets and diet) |
people |
600mg Diet +200mg tablet of Ca and 500 IU Vitamin D (per day) |
From 7 to 22 months |
There were no significant differences between the average bone mass density and prevalence of vertebral fractures in both groups. |
|
Flores L. et. al 2010
10
|
Prospective cohort study |
Espain |
1 year |
n=222 |
RYGBL |
18-65 Years |
F e M |
Calcium and Vitamin D |
(tablets) |
people |
1,200 mg Ca and 800 IU Vitamin D (per day) |
4,8 e 12 months |
The parathyroid hormone leads cortical bone destruction and improving serum Ca. 80% of patients have vitamin D deficiency but not bone fractures. |
|
Williams SE. et al 2008
27
|
Case study |
United States |
2 years |
N=1 |
RYGB |
56 years |
F |
Cálcium vitamin D |
(tablets) |
person |
500mg Ca and 400 IU (per day) |
2 years |
After 2 years the patient showed no fracture or risk to bone fracture level. |
|
Avgerinos DV. et al 2007
2
|
A prospective cohort study |
United States |
2 years |
N=444 (M=91 F=353) |
RYGB |
21-64 years |
M e F |
Cálciume vitamin D |
(tablets) |
people |
1,200 mg Ca and 800IU VitaminaD |
1.8 years |
Total calcium decreases in body related mobilization of bone. Supplementation with vitamin D prevent the decrease in bone calcium. |
|
Riedt CS et. al 2006
19
|
A prospective cohort study |
Unites States |
6 months |
N=21 |
RYGB and RYGBL (5:open field and 16 laparoscopy) |
29-62 years |
F |
Cálcium Vitamin D |
(tablets, diet and injected) |
people |
Diet, 1,000 mg of Ca and 400 IU Vitamin D |
6 months |
Low Ca absorption after surgery, being considered markers of bone resorption (60 to 200%). There was a higher bone resorption than bone formation |
