Regional Versus General Anesthesia for Hip Fracture and Postoperative Oxygenation

Condition(s) studied

Study summary

With this study, the investigators intend to measure oxygen saturation before and after hip surgery in the context of proximal femur fracture, comparing two types of anesthesia (general or spinal). The investigators also intend to study the effects of the two anesthetic techniques on sleep apnea, delirium, respiratory complications, and length of hospital stay.

This is an observational study, in which oxygen is measured at the fingertip with a sensor and a bracelet, without any intervention, inconvenience, or discomfort for the participant. Data will be collected on: respiratory complications, sleep apnea, delirium, length of hospital stay, and survival.

Data will be collected in the operating room and wards of Santa Maria Hospital, Lisbon, Portugal over a period of approximately 24 hours after the participant's operation. Information about participant's health and co-morbidities will be recorded.

There will be no implication for the participants' clinical care, since the study measurements will not be sent to the health professionals in charge. The operation, recovery, and treatments will not be influenced at any time by participation in the study.

Eligibility

Primary outcome measure(s)

• Oxygenation index (SpO2/FiO2 ratio) — first postoperative day
  Oxygenation index (SpO2/FiO2 ratio) measured as the difference between oxygenation index on admission to the operating room and the mean SpO2 during the next 24 postoperative hours, compared between groups. Peripheral oxygen saturation measured continuously during the first postoperative day with the Konica Minolta PULSOX-DS5® device.

Trial sites (1)

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