Table I. Different monitoring island harvesting methods.

	Monitor flap based on external component of the main paddle	Monitor flap based on septocutaneous branch of the radial artery	Monitor flap based on venous flow of cephalic vein
Author	Urken et al.	Cho et al.	Pellini et al.
	Byun et al.	Iwasawa et al.
	Furuta et al.
Difficulty in harvesting	+	+++	+
Skin monitor paddle mobility	+	+++	+++
False positive	0%	36%	0%