“…The combination of clip application with injection therapy or heater probe seems more successful, but results are also variable [2 ± 7] and seem unreliable for he− mostasis when the bleeding vessel is larger than 2.0 mm in diameter [8,9]. The need for of precise clip placement at the bleeding spot, which is of− ten hidden by blood, the lack of reliable and in− stantaneous closure of the vessel in certain cir− cumstances [10], and the reported re−bleeding rate make clip application a less desirable option and have already resulted in new prototype tool developments and testing for this indication [11,12]. Avoidance of re−bleeding is most important in NOTES, as the bleeding site cannot easily be re− visited once the transluminal access has been closed.…”