Indefinite Isotretinoin Treatment (Roaccutane/Isosupra)?

Hello, Would anybody consider leaving a patient on Roaccutane / Isosupra beyond the normal cumulative dose period? i.e. indefinitely? My dermatologist has suggested in some cases an alternative model can be used whereby a low-dose is taken for a prolonged period of time, with regular blood work done to monitor for any abnormalities. Although my acne is mild, it's very stubborn and psychologically debilitating... I'm interested in the opinions of other dermatologists on this model. Thanks!