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Rivista di Chirurgia Cardiaca, Vascolare e Toracica

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The Journal of Cardiovascular Surgery 2010 Aprile;51(2):193-202

lingua: Inglese

The use of the cryoplasty technique in the treatment of infrapopliteal lesions for Critical Limb Ischemia patients in a routine hospital setting: one-year outcome of the Cryoplasty CLIMB Registry

Bosiers M. 1, Deloose K. 1, Vermassen F. 2, Schroë H. 3, Lauwers G. 3, Lansinck W. 3, Peeters P. 4

1 Department of Vascular Surgery, AZ St-Blasius Dendermonde, Belgium;
2 Department of Vascular Surgery, University Hospital Ghent, Ghent, Belgium;
3 Department of Cardiovascular Surgery, ZOL, Genk Belgium;
4 Department of Cardiovascular & Thoracic Surgery Imelda Hospital, Bonheiden, Belgium


AIM: It was the objective of the Cryoplasty CLIMB to evaluate the effectiveness of the PolarCath device in a standard clinical practice in the treatment of infrapopliteal lesions in critical limb ischemia patients.
METHODS: Between May 2007 and July 2008, 100 patients (72 years, 67%male) with CLI were enrolled in the trial for the treatment of 100 infrapopliteal stenoses or occlusions. The mean lesion length and diameter stenosis were 54.9±55.8 mm and 91.3±8.3%. Primary endpoint was defined as 12-month primary patency based on duplex. Secondary endopoints were immediate succes and 12-month limb salvage and survival rate.
RESULTS: Multiple cryoplasty cycles were performed in 56 cases (2.1 inflations per patient) and in 4 the use of a different size balloon was required. The immediate technical success rate was 95.0% and the stent rate was 17.0%. The 12 month primary patency, limb salvage and survival rates were 55.9±7.4%, 93.8±2.5% and 81.8±3.9%, respectively. Stratification for lesion length did not show significant outcome differences for lesions ≤50.0 mm and those >50.0 mm neither for primary patency (P=0.94), nor for limb salvage (P=0.32).
CONCLUSION: The cryoplasty technique is effective for the treatment of infrapopliteal lesions in CLI patients. The results seem to be within the range of those of conventional PTA. Especially for shorter lesion (<50.0 mm), the wide-spread use of cryoplasty is not recommended. For lesions with a minimal length of 50.0 mm, the results are encouraging.

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