Changes of local skin temperature of patients with congenital arteriovenous malformations and its clinical significance / 第二军医大学学报

ABSTRACT

Objective: To investigate the changes of local skin temperature in congenital arteriovenous malformations (CAVM) patients before and after treatment, and to assess the relationship between the changes of skin temperature and the outcomes of surgical treatment. Methods: From Sept. 2002 to Apr. 2006, skin temperatures around the lesions were measured in 22 CAVM patients with WMY-01 digital thermometer before and after surgical treatments, and the opposite side or adjacent skins were taken as controls. Furthermore, changes of flow signals and blood flow velocities in the lesions were measured by color Doppler ultrasonography pre- and post-operatively. Results: Skin temperatures of local lesions decreased from (35.58 ±0.68)°C pre-operatively to (34.76±0.63)°C post-operatively(P<0.01); however, the post-operative skin temperature of the lesions was still higher than that of normal skin(34.23±0.83)°C (P<0.05). Post-operatively, color Doppler flow image showed 100% occlusion of blood flow in 1 patient, more than 66.7% occlusion in 14 patients, more than 33.3% but less than 66.7% occlusion in 6 patients, and no occlusion in 1 patient; there was significant difference between those pre- and post-operation(P<0.01). The average blood flow velocity decreased from (80.86±6.97) cm/s pre-operatively to (50.72±5.85) cm/s post-operatively (P<0.01). Conclusion: A significant reduction of surface temperature in CAVMS lesions can be achieved by surgical treatment, and the temperature decrease of the lesion may be used as an indicator for the evaluation of treatment outcomes.