Patient selection: primary hypospadias correction surgery
Outcome: complications within 1 year (wound dehiscence, wound infection, meatal retraction, urinary tract infection, urethrocutaneous fistula, meatal or urethral stenosis, prepuce fistula, prepuce dehiscence, phimosis
Parameters:
(1) location of hypospadias (anterior vs middle)
(2) surgical technique
(3) chordectomy performed
(4) surgeon's experience in years
|
Parameter
|
Finding
|
Points
|
|
location
|
middle
|
0.56
|
|
|
anterior
|
0
|
|
surgical technique
|
no urethroplasty
|
-0.78
|
|
|
MAGPI
|
-1.38
|
|
|
meatoplasty and (meatal or urethral advancement)
|
-1.38
|
|
|
other
|
0
|
|
chordectomy
|
not performed
|
0
|
|
|
performed
|
0.80
|
|
surgeon experience
|
|
0.39 * (years)
|
where:
• MAGPI is meatal advancement with glansplasty incorporated.
• The no urethroplasty surgical group had (prepuce reconstruction or reconstruction) and/or (correction of penile curvature).
• Usually complications decrease with a surgeon's experience. Could the cases being performed be more complex?
value of X =
= SUM(points for all of the parameters) - 1.65
probability of complications =
= 1 / (1 + EXP((-1) * X))
Performance:
• The area under the ROC curve is 0.70 (after bias correction).
