Key result
The anchor knot technique provided the greatest lead stability during controlled traction force measurements compared with simple knot and looping knot techniques.
Why the study?
Implantable cardiac electronic device lead dislodgment carries significant comorbidities and may be caused by inadequate anchoring at the lead suture sleeve, but the most effective knot-tying technique was unknown.
Does the anchor knot technique improve lead stability compared to simple and looping knot techniques for securing implantable cardiac electronic device leads?
Does the anchor knot technique improve lead stability compared to simple and looping knot techniques for securing implantable cardiac electronic device leads?
The anchor knot technique provides superior biomechanical stability for securing cardiac device leads compared to simple or looping knots, which may help prevent clinical lead dislodgement.
May enhance lead stability in animal models; leaves open whether it reduces clinical dislodgement.
Summary: Implantable cardiac electronic device lead dislodgment is a relatively common complication and carries significant comorbidities. A potential cause of lead dislodgement includes inadequate anchoring along the lead suture sleeve at the venous insertion site. We assessed which of the 3 commonly applied knot-tying techniques results in the most effective anchoring of a pacing lead along its suture sleeve, which could be associated with minimized lead motion postimplant. Following controlled traction force measurements, the anchor knot technique offered the greatest amount of lead stability when compared with the simple knot and the looping knot techniques.
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Rezazadeh et al. (2019) studied Implantable cardiac electronic device lead dislodgment. Anchor knot technique vs. Simple knot and looping knot techniques was evaluated on Lead stability via controlled traction force measurements. The anchor knot technique provided the greatest lead stability during controlled traction force measurements compared with simple knot and looping knot techniques.
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