title: Improving patient flow and timeliness in the diagnosis and management of breast abnormalities: the impact of a rapid diagnostic unit.
abstract: BACKGROUND
  Efforts to streamline the diagnosis and treatment of breast abnormalities are necessary to limit patient anxiety and expedite care. In the present study, we examined the effect of a rapid diagnostic unit (rdu) on wait times to clinical investigations and definitive treatment.
  
  
  METHODS
  A retrospective before-after series, each considering a 1-year period, examined consecutive patients with suspicious breast lesions before and after initiation of the rdu. Patient consultations, clinical investigations, and lesion characteristics were captured from time of patient referral to initiation of definitive treatment. Outcomes included time (days) to clinical investigations, to delivery of diagnosis, and to management. Groups were compared using the Fisher exact test or Student t-test.
  
  
  RESULTS
  The non-rdu group included 287 patients with 164 invasive breast carcinomas. The rdu group included 260 patients with 154 invasive carcinomas. The rdu patients had more single visits for biopsy (92% rdu vs. 78% non-rdu, p < 0.0001). The rdu group also had a significantly shorter wait time from initial consultation to delivery of diagnosis (mean: 2.1 days vs. 16.7 days, p = 0.0001) and a greater chance of receiving neoadjuvant chemotherapy (37% vs. 24%, p = 0.0106). Overall time from referral to management remained statistically unchanged (mean: 53 days with the rdu vs. 50 days without the rdu, p = 0.3806).
  
  
  CONCLUSIONS
  Introduction of a rdu appears to reduce wait times to definitive diagnosis, but not to treatment initiation, suggesting that obstacles to care delivery can occur at several points along the diagnostic trajectory. Multipronged efforts to reduce system-related delays to definitive treatment are needed.
authors.affiliation: University of Toronto, Department of Surgical Oncology, Toronto, ON;
authors.forename: J M
authors.initials: JM
authors.lastname: Racz
authors.affiliation: Division of Surgical Oncology, Odette Cancer Centre and Sunnybrook Health Sciences Centre, Toronto, ON;; Department of Surgery, University of Toronto, Toronto, ON.
authors.forename: C M B
authors.initials: CM
authors.lastname: Holloway
authors.affiliation: University of Toronto, Department of Surgical Oncology, Toronto, ON;
authors.forename: W
authors.initials: W
authors.lastname: Huang
authors.affiliation: Division of Surgical Oncology, Odette Cancer Centre and Sunnybrook Health Sciences Centre, Toronto, ON;; Department of Surgery, University of Toronto, Toronto, ON.
authors.forename: N J Look
authors.initials: NJ
authors.lastname: Hong
keywords: Breast cancer; diagnosis; efficiencies; wait times