Out of 75 patients with bilateral patent tubes (detected by LCPT) HSSG detected 73 patients and HSG detected 71 patients.
Also, LCPT, of course a gold standard method, but we can't evaluate endometrium, endometrial cavity by LCPT, which we can do by HSSG.
DISCUSSION: Result of HSSG and HSG when compared with LCPT it was found that sensitivity and specificity of HSSG was more than HSG.
HSSG diagnosed bilateral patent tubes in 73cases, whereas by LCPT, bilateral patency was found in 75 cases.
After diagnosis of bilateral tubal block by HSSG, we should then confirm it by more invasive method like LCPT. Even unilateral water fall sign and/or presence of fluid in cul de sac confirms at least unilateral patent tube and for time being we can concentrate on other causes of infertility.
In HSG bilateral block was noted in 9 cases, whereas it was in 6 cases in LCPT. This could be probably due to cornual spasm.
But HSSG is an excellent screening method to detect tubal patency because of its high sensitivity and specificity, very close to that of LCPT (8).