Maintaining a patient’s body temperature within physiological limits during surgery is not only a matter of comfort—it is a vital clinical and economic factor that influences recovery, complications, and hospital costs. Perioperative hypothermia, defined as a core temperature below 36°C during or after surgery, remains one of the most common and underestimated issues in modern operating rooms. While the immediate effects may seem mild—shivering, discomfort, or delayed awakening—the hidden costs and long-term complications are far more significant than they appear at first glance.
Impaired Wound Healing and Surgical Site Infections
One of the primary long-term consequences of perioperative hypothermia is impaired wound healing. Hypothermia leads to peripheral vasoconstriction and reduced oxygen delivery to tissues, which delays collagen synthesis and slows the repair process. Numerous studies have shown that patients who experience even mild hypothermia during surgery have a higher incidence of surgical site infections. These infections extend hospital stays, require antibiotic therapy, and sometimes necessitate reoperations. The economic burden of such complications is substantial, with postoperative infections being among the most expensive preventable conditions in healthcare.
Hemostasis Disruption and Transfusion Requirements
Another key area affected by hypothermia is hemostasis. Low body temperature disrupts platelet function and slows the enzymatic reactions involved in the coagulation cascade. This can result in increased intraoperative blood loss and a higher need for transfusions. Blood transfusions, in turn, carry their own risks—such as immunosuppression, longer ICU stays, and transfusion-related complications. In many cases, these secondary effects extend beyond the immediate surgical episode, increasing the likelihood of readmission and long-term morbidity.
Effects on Drug Metabolism and Recovery
Perioperative hypothermia also affects pharmacokinetics and anesthetic metabolism. A cooler body temperature reduces hepatic and renal clearance, leading to prolonged drug effects and delayed recovery from anesthesia. This not only lengthens time in the recovery room but can also affect postoperative respiratory and cardiovascular stability. Over time, repeated or prolonged exposure to such stressors may contribute to chronic fatigue, slower cognitive recovery, and reduced quality of life in vulnerable patients, especially the elderly and those with comorbidities.
Financial Impact on Healthcare Institutions
From an institutional perspective, the financial implications of hypothermia are measurable and avoidable. Extended hospitalization, increased use of antibiotics, transfusions, and readmissions represent direct costs. Indirectly, hospitals face higher resource utilization, lower operating room turnover, and decreased patient satisfaction—factors that can influence hospital reputation and reimbursement models. Many of these outcomes could be mitigated through simple interventions such as prewarming, intraoperative warming systems, and continuous temperature monitoring.
The Case for Normothermia as Core Patient Care
Ultimately, the hidden costs of perioperative hypothermia extend beyond the immediate surgical event. They impact long-term recovery, patient safety, and hospital economics. Maintaining normothermia should therefore be recognized not just as a best practice but as a core component of patient-centered care. The investment in proper temperature management devices and training pays for itself many times over—by reducing complications, shortening recovery times, and improving outcomes that matter to both patients and healthcare systems.
