RÉSUMÉ
Objective To investigate the effect of mammary ductoscope in treatment of lactational masti-tis induced by galactostasis ( nonbacterial mastitis ) .Methods This study included 200 patients with galactosta-sis-induced lactational mastitis in Department of Breast Surgery , Puyang Maternal and Child Health Care Hospital of Henan Province, from Jul.2010 to Jun.2014.The affected lactiferous ducts were unblocked and flushed un-der mammary ductoscope.The treatment outcomes were analyzed .Results Of all patients, 85%(170/200)were cured after being treated once, 7.5%(15/200)were cured after being treated twice, 2.0%(4/200)were cured af-ter being treated three times, and 5.5%(11/200)were converted to other therapies;97.0%(194/200)continued lactation after treatment .Conclusions The mammary ductoscope is effective in identifying the blockade of lactifer-ous ducts and draining the lactiferous ducts with galactostasis .It provides an effective diagnostic and therapeutic means for patients with galactostasis-induced lactational mastitis and can increase the accuracy of etiological diagno -sis and the cure rate.In addition, the space-occupying lesions in lactiferous ducts can be identified and located in time with the mammary ductoscope , thus reducing the length of operation .