Related Experiment Video
Updated: Jul 15, 2026

05:12
Transoral Endoscopic Thyroidectomy Vestibular Approach for Thyroid Lobectomy
Published on: May 12, 2023
Dissection and hemostasis with hydroxilated polyvinyl acetal tampons in open thyroid surgery
Gianlorenzo Dionigi1, Luigi Boni, Francesca Rovera
1Department of Surgical Sciences, University of Insubria, Viale Borri 57, 21100 Varese, Italy. gianlorenzo.dionigi@uninsubria.it
Annals of Surgical Innovation and Research
|April 7, 2007
Summary
Hydroxylated polyvinyl acetal (HPA) tampons effectively manage minor bleeding and aid tissue dissection in thyroid surgery. These foam tampons absorb fluids and provide compression, improving surgical site visibility and reducing blood loss.
Area of Science:
- Surgical Innovation
- Minimally Invasive Surgery
- Biomaterials
Background:
- Thyroidectomy aims for nerve/parathyroid preservation, hemostasis, and cosmesis.
- Advancements include mini-invasive techniques, regional anesthesia, and new hemostasis devices.
- Minor bleeding is a significant complication, necessitating effective vessel ligation.
Purpose of the Study:
- To evaluate the efficacy of hydroxylated polyvinyl acetal (HPA) tampons.
- To assess their utility in controlling minor bleeding and facilitating tissue dissection during thyroid procedures.
Main Methods:
- HPA tampons, made of synthetic open-cell foam, were tested.
- Their fluid absorption capacity is up to 25 times their initial weight.
- Efficacy was assessed in various thyroidectomy procedures.
Main Results:
- HPA tampons efficiently absorb minor, diffuse bleeding through combined fluid absorption and compression.
- The porous structure allows suction device use through the tampon.
- Their consistency enabled use as tissue dissecting instruments.
Conclusions:
- HPA tampons are highly effective for minor bleeding control in thyroid surgery.
- They aid in fluid removal and tissue dissection.
- This contributes to improved surgical site management and outcomes.