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Abstract
Purpose
Recently, Ligasure vessel sealing system (LVSS) is being introduced in thyroid operations. In this study, we compare the clinical outcomes of LVSS using thyroidectomy with those of conventional thyroidectomy.
Methods
From Nov 2006 to Oct 2008, 400 patients managed with total thyroidectomy were investigated. Half of them (the conventional group) were operated on with conventional methods, whereas another half (the LVSS group) were operated on using LVSS. Operation time, amount of drainage, duration of drainage, hospital stay, and complications (numbness, hoarseness, hematoma) of the two groups were compared.
Results
The mean operation time of the LVSS group was 87.53±27.49 (min), and that of the conventional group was 120.48±39.51 (min). Therefore, operation times of the LVSS group was significantly shorter than that of the conventional group (P<0.001). But, there was no significant difference in the amount of drainage, duration of drainage, duration of hospital stay, and the incidences of complications.
Figures and Tables
Fig. 1
Transparency of the seal formed by LVSS. We sealed the middle thyroidal vein. (A) taken before sealing and (B) after sealing. The sealed portion of the vessel became transparent.
Fig. 2
Slide view of the vessel sealed by LVSS. Tissues that undergo necrotic degeneration have more affinity to the eosin than normal tissues. The strongly stained tissues were seen on the sealed vessel. (A) H&E stain, ×40, (B) H&E stain, ×100, (C) H&E stain, ×200.
Table 1
Patient demographics
The each variable was compared as the mean value. *Independent samples T-test; †Chi-square test; ‡ASA = American society of anesthesiologists; §Mann Whitney U test; ∥R = right lobe; ¶L = left lobe; **B = both lobe; ††NNG = nontoxic nodular goiter; ‡‡PC = papillary carcinoma; §§FC = follicular carcinoma; ∥∥MC = medullary carcinoma; ¶¶Tg = thyroglobulin; ***N = 169; †††N = 179.
References
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