Perfecting hysterosalpingography: Limitations to the use of disposable balloon catheter and its solution.

Objective: To revive the use of the Kahn Uterine Trigger Cannula to overcome limitations associated with technical difficulties during hysterosalpingography (HSG) using the disposable balloon HSG catheter.
Method: A case series was conducted of 17 patients who encountered technically difficult or incomplete HSG study while using a disposable HSG balloon catheter, also leading to false-positive findings. Nine patients underwent a repeat HSG using a Kahn Uterine Trigger Cannula (Group 1). Eight patients underwent diagnostic laparoscopy and tubal perfusion testing using a Kahn Uterine Trigger Cannula (Group 2). The findings for each group in comparison to their initial HSG results using the disposable balloon HSG catheter are described.
Results: All patients were noted to have patent fallopian tubes using a Kahn Uterine Trigger Cannula on repeat HSG or tubal perfusion testing during laparoscopy.
Conclusion: Providers who perform HSG studies should be familiar with the value of a Kahn Uterine Trigger Cannula when the traditional use of disposable HSG balloon catheter fails due to technical difficulty or incomplete study. The use of the Kahn Uterine Trigger Cannula in such situations can prevent inaccurate assessment and unnecessary interventions.
(© 2022 International Federation of Gynecology and Obstetrics.)