title: Relationship between the timing of preoperative medical visits and day-of-surgery glucose in poorly controlled diabetes.
abstract: BACKGROUND
  This study evaluated referral patterns for preoperative evaluations of patients with poorly controlled diabetes mellitus (DM) and determined whether intervals between evaluations and surgery day were associated with preoperative glucose levels.
  In this retrospective analysis of DM patients with a hemoglobin A1clevel greater than 8.0%, of the 163 patients who underwent preoperative medical evaluation, only 45% were evaluated by endocrinology. Patients who had surgery earlier than 10 days after the preoperative medical evaluation had preoperative glucose levels 18% higher than those of patients who waited more than 10 days. Preoperative outpatient contact with endocrinology was not associated with preoperative glucose level (p = 0.90).
  
  
  CONCLUSIONS
  For poorly controlled DM, more than 10 days are needed to achieve preoperative glycemic control.
authors.affiliation: Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ 85259, USA; Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ 85259, USA.
authors.forename: Salma I
authors.initials: SI
authors.lastname: Patel
authors.affiliation: Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ 85259, USA; Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ 85259, USA.
authors.forename: Bithika M
authors.initials: BM
authors.lastname: Thompson
authors.affiliation: Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ 85259, USA; Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ 85259, USA.
authors.forename: Ryan Y
authors.initials: RY
authors.lastname: McLemore
authors.affiliation: Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ 85259, USA; Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ 85259, USA.
authors.forename: M'hamed
authors.initials: M
authors.lastname: Temkit
authors.affiliation: Mayo Clinic Hospital, 5777 E Mayo Blvd, Phoenix, AZ 85054, USA; Mayo Clinic Hospital, 5777 E Mayo Blvd, Phoenix, AZ 85054, USA.
authors.forename: Richard T
authors.initials: RT
authors.lastname: Schlinkert
authors.affiliation: Mayo Clinic Hospital, 5777 E Mayo Blvd, Phoenix, AZ 85054, USA; Mayo Clinic Hospital, 5777 E Mayo Blvd, Phoenix, AZ 85054, USA.
authors.forename: Heidi A
authors.initials: HA
authors.lastname: Apsey
authors.affiliation: Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ 85259, USA; Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ 85259, USA.
authors.forename: Curtiss B
authors.initials: CB
authors.lastname: Cook
keywords: anesthesia; diabetes mellitus; hyperglycemia; perioperative; surgery