Occurrence of seroma after mastectomy: where is the solution?

There are a number of preoperative patient characteristics including the presence of underlying comorbidities (ie, hypertension), surgical factors (ie, the extent of mastectomy and suture flap fixation), and postoperative factors (ie, compression dressing, intensity of suction pressure, immobilization of the shoulder, and timing of shoulder movement) that were not commented on by the authors when comparing the 2 groups.2,3 These patient characteristics might have made the 2 groups dissimilar and might have influenced the results.