Overview
compare the systemic haemodynamic response to fractional spinal anaesthesia versus conventional spinal anaesthesia , in a group of elderly and comorbid patients with hip fracture.
Description
Spinal anaesthesia affects sympathetic chain activity, leading to a reduction in vasomotor tone.It was found that the incidence of hypotension following single-shot spinal anaesthesia, has previously been described as being 28-69%. As a matter of fact, autonomic nervous system function plays a key role in the development of haemodynamic instability and intraoperative hypotension . Haemodynamic stability should be considered as a primary intraoperative target, since several findings suggest avoiding systemic pressure drops . It was found that hypotension is primarily related to the overall dose injected ; however, several other variables, including the volume, the type of the anaesthetics injected, different adjuvant agents, and pre- and intraoperative factors, may impact the haemodynamic effect of the SA.
Eligibility
Inclusion Criteria:
- Patients with hip fractures.
- Patients age >60 years old.
- ASA ≤ 3.
Exclusion Criteria:
- Patients on anticoagulant medication.
- Planned for general anaesthesia .
- Patients had atrial fibrillation.