title: Single versus multiple dose doxycycline prophylaxis in elective colorectal surgery.
abstract: One hundred and two patients undergoing elective colorectal surgery were randomized in a prospective but "non-blind" way into two groups. The first group received 0.4 g of doxycycline preoperatively and the second group 0.2 g of doxycycline preoperatively and 0.1 g of doxycycline on the first, second and third postoperative day. All doxycycline was administered by intravenous infusion. The infection rate was 10% in the "one-dose" treatment group and 10% in the "four-dose" treatment group. It is thus concluded that 0.4 g of doxycycline preoperatively results in an acceptable rate of postoperative infections, which may be explained by the satisfactory concentration of doxycycline up till three days after administration. The advantage of "one-dose" treatment compared to "four-dose" treatment from practical and economical standpoints are obvious.
mesh_terms: D002986:Clinical Trials as Topic; D003108:Colonic Diseases / Q000601:surgery*; D004305:Dose-Response Relationship, Drug; D004318:Doxycycline / Q000008:administration & dosage* / Q000627:therapeutic use; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D011292:Premedication; D011446:Prospective Studies; D011897:Random Allocation; D012002:Rectal Diseases / Q000601:surgery*; D013530:Surgical Wound Infection / Q000517:prevention & control*
chemical_list: D004318:Doxycycline