RANDOMIZED EXPERIMENTAL STUDY OF TOPICAL VASODILATORS IN MICROSURGERY WITH COST ANALYSIS

• Published in: Acta ortopedica brasileira Vol. 32; no. 3; p. e276513
• Main Authors: Rusig, Renato Polese, Alves, Debora Yumi Yoshimura Orlandin, Nascimento, Amanda de Oliveira Silva, Dos Santos, Gustavo Bispo, Mattar, Jr, Rames, Iamaguchi, Raquel Bernardelli
• Format: Journal Article
• Language: English
• Published: Brazil ATHA EDITORA 01-01-2024; Sociedade Brasileira de Ortopedia e Traumatologia
• Subjects: Animal Models; Complications; Experimental Study; Microsurgery; Original /Wrist and Hand; ORTHOPEDICS; Vasodilator Agents; Microsurgery; Vasodilator Agents; Experimental Study; Complications; Animal Models; Eficácia; Microcirurgia; Complicações; Custo e Análises de Custo; Dilatação
• ISSN: 1413-7852; 1809-4406; 1809-4406
• DOI: 10.1590/1413-785220243203e276513

Throughout microsurgical anastomosis, many surgeons use topical vasodilators in order to reduce pathological vasospasm. It was carried out an experimental study comparing the effectiveness of topical use of Nitroglycerin, Papaverine, Magnesium sulfate over a control group in the femoral artery and vein of rats, in reducing prolonged vasospasm.
Randomized comparative experimental study in 15 rats, divided into four groups. The external diameter of the vases soaked in the randomized solution was measured. For statistical analysis, it was calculated the percentual increase in the external diameter of the vessels.
A statistically significant increase in arterial dilation was observed after 10 minutes of topical application of 10% magnesium sulfate compared to the control group, with
. No other drug showed a vasodilator effect superior to the control group. Magnesium sulfate at 10% is still not used in microsurgery and costs 15 times less than papaverine, the standard drug for topical vasodilation in clinical cases at our service.
Magnesium sulfate had better vasodilating effects over the control group after 10 minutes of arterial microanastomosis. None of the tested drugs have presented superior vasodilating effects over each other nor the control group after venous microanastomosis.