Thomas E Read1,2,3, Marc Brozovich4,5, Philip F Caushaj4,6. 1. Western Pennsylvania Hospital, Clinical Campus of Temple University School of Medicine, Pittsburgh, PA, USA. thomas.read@lahey.org. 2. Department of Colon and Rectal Surgery, Lahey Hospital and Medical Center, 41 Mall Road, Burlington, MA, 01805, USA. thomas.read@lahey.org. 3. Tufts University School of Medicine, Boston, MA, USA. thomas.read@lahey.org. 4. Western Pennsylvania Hospital, Clinical Campus of Temple University School of Medicine, Pittsburgh, PA, USA. 5. University of Pittsburgh Medical Center, Pittsburgh, PA, USA. 6. Hartford Healthcare Medical Group, University of Connecticut School of Medicine, Hartford, CT, USA.
Abstract
BACKGROUND: Hypothermia has been associated with an increase in the rate of infectious complications following colectomy. We hypothesized that a substantial fraction of temperature loss in patients undergoing elective colectomy occurs prior to operation. METHODS: Temperature data were collected from 105 consecutive patients undergoing elective colectomy at a single institution. RESULTS: The study population consisted of 105 patients; 67(64%) male, median age 59 years (range 17-95 years), median body mass index 27 kg/m2 (range 15-48 kg/m2). Median preoperative temperature was 36.7 °C (range 35.2-39.2 °C), dropping to 35.7 °C (range 34.0-37.3 °C) immediately following intubation and then rising to 36.2 °C (range 34.0-38.0 °C) prior to leaving the operating room. The median first postoperative temperature was 36.3 °C (range 34.4-37.7 °C). Temperatures were significantly different from one another (p < 0.05, ANOVA), except for the last operative and first postoperative temperature. A first postoperative temperature of ≥ 36.0 °C (meeting Surgical Care Improvement criteria Inf-10) was achieved in 78 (74%) of patients. A preoperative temperature of ≥ 36.5 °C was associated with a first postoperative temperature of ≥ 36.0 °C, but operative approach (laparoscopic versus open) was not. CONCLUSIONS: Most temperature loss occurs prior to operation in patients undergoing colectomy. Patients are rewarmed during the operative procedure. The time period prior to operation should be the focus of efforts designed to ensure normothermia.
BACKGROUND:Hypothermia has been associated with an increase in the rate of infectious complications following colectomy. We hypothesized that a substantial fraction of temperature loss in patients undergoing elective colectomy occurs prior to operation. METHODS: Temperature data were collected from 105 consecutive patients undergoing elective colectomy at a single institution. RESULTS: The study population consisted of 105 patients; 67(64%) male, median age 59 years (range 17-95 years), median body mass index 27 kg/m2 (range 15-48 kg/m2). Median preoperative temperature was 36.7 °C (range 35.2-39.2 °C), dropping to 35.7 °C (range 34.0-37.3 °C) immediately following intubation and then rising to 36.2 °C (range 34.0-38.0 °C) prior to leaving the operating room. The median first postoperative temperature was 36.3 °C (range 34.4-37.7 °C). Temperatures were significantly different from one another (p < 0.05, ANOVA), except for the last operative and first postoperative temperature. A first postoperative temperature of ≥ 36.0 °C (meeting Surgical Care Improvement criteria Inf-10) was achieved in 78 (74%) of patients. A preoperative temperature of ≥ 36.5 °C was associated with a first postoperative temperature of ≥ 36.0 °C, but operative approach (laparoscopic versus open) was not. CONCLUSIONS: Most temperature loss occurs prior to operation in patients undergoing colectomy. Patients are rewarmed during the operative procedure. The time period prior to operation should be the focus of efforts designed to ensure normothermia.
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