Hypothesis / aims of study
Intravesical Onabotulinum toxin A (BOTOX) is a well-established treatment for women with overactive bladders. The current standard of care is to administer under a general or local anaesthetic via a rigid or flexible cystoscope. However, a significant amount of equipment is required including a surgical stack system, onsite sterilisation facilities as well as the need for a sizeable operating space and the ability to deliver and recover from a general anaesthetic.
The LiNA OperaScope system is an all-in-one disposable scope with a built-in screen and working channel, negating the need for the paraphernalia associated with standard cystoscopes and general anaesthetics.
We, therefore, investigated the tolerability and feasibility of performing intravesical BOTOX administration under local anaesthetic using the LiNA OperaScope system in an outpatient setting.
Study design, materials and methods
50 women with overactive bladders refractory to medical treatment underwent 100 units of BOTOX administration (diluted in 10mls of Normal Saline 0.9%) under local anaesthetic (Instillagel) using the LiNA OperaScope system and a retractable BOTOX needle.
Feedback from both the surgeon and the patients were recorded. The patient's tolerability of the procedure were also recorded and compared to their previous cervical smear test experience.
Interpretation of results
The LiNA OperaScope system appears to be a safe and viable modality in administering BOTOX under local anaesthetic in women, with excellent tolerability reported by patients and ease of use reported by the surgeons.
The procedure itself appears better tolerated than a cervical smear test and acts as a good benchmark when consenting patients for this procedure.
Longer-term data is needed on the efficacy of the BOTOX administered in this manner and direct comparison is required with the current standard of care.