A modified Tessari method for producing more foam.

Jie Xu,Yi-Fei Wang,Shao-Hua Liu,An-Wei Chen,Tao Wang

doi:10.1186/s40064-016-1769-5

Abstract

This study aimed to develop a modified Tessari method for producing more sclerosing foam in treatment of extensive venous malformations. Sclerosing foam was produced by using Tessari method and the modified Tessari method. The procedure of the later was as follows: prepared foam in a sclerosant–air ratio of 1:4; connected three disposable 10 ml syringes to two medical three-way taps; drawn 4 ml of liquid sclerosant into one syringe and 16 ml averagely of air into the other two; then moved the plungers of all syringes back and forth for 20 times to produce sclerosing foam. The volume and foam half time (FHT) of foam produced by the two methods were compared. The average volume of sclerosing foam produced by Tessari method and the modified Tessari method were 9.8 and 19.7 ml, and assessed to have statistical difference. The FHT of foam produced by the two methods were 120 and 150 s, and assessed to have statistical difference. In conclusion, the modified Tessari method could produce more fresh and stable sclerosing foam.

Highlights

During the treatment of venous malformations (VMs) using foam sclerotherapy, one of the most popular methods to produce foam was the Tessari method which used pumping cycles of liquid and air in-and-out of a double syringe system (Nastasa et al 2015; Wolmann 2010; Tessari 2001, 2005)
The average volume of sclerosing foam produced by Tessari method and the modified Tessari method were 9.8 and 19.7 ml, and assessed to have statistical difference
The foam half time (FHT) of foam produced by Tessari method and the modified Tessari method were 120 and 150 s, and assessed to have statistical difference (Table 1)

Summary

Introduction

During the treatment of venous malformations (VMs) using foam sclerotherapy, one of the most popular methods to produce foam was the Tessari method which used pumping cycles of liquid and air in-and-out of a double syringe system (Nastasa et al 2015; Wolmann 2010; Tessari 2001, 2005). Tessari method was originally used in the treatment of varicose veins, in most cases of which 10 ml of fresh sclerosing foam might be sufficient (Tessari et al 2001). This volume might be insufficient in treating some VMs, especially when the region of lesion was extensive. Sufficient fresh sclerosing foam was needed for the treatment of extensive VMs. There were several ways to get more fresh sclerosing foam, for example, producing foam once more, using bigger syringes or more operators and devices to produce simultaneously.

Objectives

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Discussion

Conclusion