medical decision support medical decision support
Sign In

Factors of Vasher et al Impacting the Calcium Levels Following Outpatient Parathyroidectomy for Primary Hyperparathyroidism

Description

Vasher et al reported a number of factors impacting the serum calcium following outpatient parathyroidectomy for primary hyperparathyroidism. Recognition of these factors can help to guide postoperative calcium replacement. The authors are from the Norman Parathyroid Center in Tampa, Florida.


 

Parameters:

(1) preoperative serum calcium concentration

(2) bone density

(3) body weight

(4) number of parathyroid glands removed

(5) number of remaining parathyroid glands manipulated during surgery

Parameter

Finding

Points

preoperative serum calcium

<= 12 mg/dL

0

 

12.01 to 13.00 mg/dL

1

 

13.01 to 13.50 mg/dL

2

 

> 13.50 mg/dL

3

bone density

not severe osteoporosis

0

 

severe osteoporosis (T score < -3)

1

body weight

not morbidly obese

0

 

morbidly obese

1

number of parathyroid glands removed

1

0

 

2 or more

1

number of the remaining parathyroid glands manipulated

not all

0

 

all

1

 

total number of factors =

= SUM(points for all 5 parameters)

 

Interpretation:

• minimum number of factors: 0

• maximum number of factors: 7

• The greater the number of factors the greater the dose of replacement calcium required postoperatively.

• The authors estimated that each factor increased the replacement dose of calcium citrate required by 315 mg per day.

 


To read more or access our algorithms and calculators, please log in or register.

Specialty