On 23.8.24, I commenced an investigation into the death of Mrs Gemma Louise Poterajko The investigation concluded at the end of the inquest on the 27th June 2025 The conclusion of the inquest was a narrative as follows: Gemma died from a rare, unexpected, but recognised complication of a pacemaker lead extraction. She died from multi organ failure caused by catastrophic haemorrhage from two venous tears in the left innominate vein and left subclavian vein, sustained during the lead extraction. No identified issues of care have, on balance, caused or made a more than minimal, negligible or trivial contribution to her death.

Gemma died on 22.8.24 at the City Hospital in Nottingham following a pacemaker Lead Extraction procedure. During the advancement of the Tightrail cutting sheath used to cut through fibrous scar tissue surrounding the lead, to aid lead extraction, the cutting blades likely caused two tears in the wall of the left subclavian and left innominate veins. These tears occurred at sometime between 14.35 and Gemma’s collapse with low blood pressure at 14.48 hours on that day. Whilst the exact mechanism of venous tearing is unclear, and is a very unusual occurrence, the vein walls were likely to be additionally vulnerable because of the stuck fibrous tissue around the pacemaker lead also being stuck to the vein inner wall. No evidence of careless or incorrect technique has been established to have led to these tears. Bleeding from these tears was catastrophic, likely the most significant bleed being from the higher tear in the subclavian vein, where the Tightrail sheath was found protruding from the vein at 16.55 hours. The first venous tear was found at 16.11.hours. Managing events from 14.48 onwards was challenging for the team of senior clinicians present, as there was a need to search for and potentially deal with, a more common bleeding site, that is from the Right Atrium or from a Superior Vena Cava tear, before a higher venous tear was considered. Rendering all appropriate resuscitative measures, including cardiopulmonary bypass was necessary before further bleeding sites were searched for, as Gemma had such a profound circulatory collapse with a cardiac arrest at 15.00 hours requiring ongoing cardiac compressions and full and continuing advanced life support. The extent of bleeding from the venous tears was likely unsurvivable once it had occurred, although it was entirely appropriate to continue all measures to try and save Gemma’s life up until sadly the situation was futile with evidence of established multi organ failure later that evening.

Gemma died from a rare, unexpected, but recognised complication of a pacemaker lead extraction. She died from multi organ failure caused by catastrophic haemorrhage from two venous tears in the left innominate vein and left subclavian vein, sustained during the lead extraction. No identified issues of care have, on balance, caused or made a more than minimal, negligible or trivial contribution to her death.