Complications Associated With Intraoperative Hypothermia.
Condition: Hypothermia; Hemorrhage, Postpartum; Infection Surgical Wound; Transfusion-dependent Anemia
MeSH terms: Surgical Wound Infection; Postpartum Hemorrhage; Hemorrhage; Hypothermia; Surgical Wound
Study type: Observational

Summary: 
      Maintaining intraoperative normothermia and temperature measurement is a marker of quality of
      care. We know that intraoperative hypothermia is associated with an increased risk of
      cardiovascular events, infection of the surgical wound, a longer hospital stay, discomfort,
      hemorrhage and transfusion demand.

      Goals:

      To know the incidence of perioperative hypothermia in routine clinical practice in different
      surgical settings in a national reference university hospital.

      To establish if hypothermia is a risk factor for developing postoperative complications,
      focusing mainly on bleeding and infection of the surgical wound, in subjects aged between
      18-65 years who come to the La Paz University Hospital for a surgical intervention in the
      Obstetrics / Plastic and Maxillofacial Surgery Services.

      Hospital-based cohort study. A two-year follow-up of patients between 18 and 65 years will be
      carried out. Those patients with haemostasis disorders and infections in the preoperative
      period will be excluded.

      Using a questionnaire on sociodemographic variables, the baseline conditions of the patients
      will be evaluated for inclusion in the study. Subsequently, the temperature will be measured
      at the beginning and at the end of the surgery, as well as during admission to the Post
      Anesthesia Care Unit, where the temperature normalization time will be noted in the event of
      hypothermia. In retrospect, those variables corresponding to the late postoperative period
      will be evaluated and the telephone interview will be conducted to assess the quality of care
      received. All the data will be reflected in the collection booklet that we present in the
      annex.

      Patient demographics, case characteristics, and temperature records were summarized using
      descriptive statistics.

      Microsoft Excel (Professional Plus 2010, version 14); it was used for data management and
      processing, with Stata (version 14; StataCorp LP, College Station, TX) for graphical
      representations and statistical tests. A multivariate analysis of potential confounding
      factors will be performed.

      These results will serve to know the incidence of hypothermia according to the usual practice
      in a Spanish tertiary hospital and to establish recommendations in the management of
      intraoperative hypothermia and its prevention.
    


Intervention name(s): Hipotermia/Normotermia
Intervention type(s): Other
Intervention description(s): The temperature will be measured at the beginning and at the end of the surgery, as well as during admission to the Post-Anesthesia Care Unit, where the temperature normalization time will be noted in the event of hypothermia. In retrospect, those variables corresponding to the late postoperative period will be evaluated and the telephone interview will be conducted to assess the quality of care received. All the data will be reflected in the collection booklet that we present in the annex.
Observational model: Cohort
Time perspective: Prospective
Sampling method: Probability Sample
Study population: 
        Patients between 18 and 65 years old undergoing different types of surgeries (caesarean
        section / plastic and reparative / maxillofacial surgery) belonging to the Hospital
        Universitario la Paz will be monitored.