Safest Anesthetic Technique for Hip Fractures in Elderly-Juniper Publishers
Juniper Publishers-Journal of Anesthesia
Background
There is high incidence of perioperative complications in hip surgeries after femoral neck fractures in older age group.
Objective
In this review, we try to detect the safest anesthetic technique for those patients.
Introduction
Hip fracture is a worldwide problem affecting 1.6million and will affect 2.6 annually by 2025 [1].Hip
 fractures are associated with high risk of morbidity and mortality, 
approximately 1-6% of patients will die during their hospital stay [2-4], 4-10% will die with in 30 days of their admission [5], and 18%- 28% of the patients die with in one year of their fractures [6] this is mainly due to pulmonary and cardiovascular complications [7].
 Postoperative delirium is a frequent complication in elderly patients 
with hip fractures and the incidence is varying between 16% and 62% [8].
 Patients with femoral neck fracture can experience delirium three times
 more than patients undergoing non orthopedic surgery [9].
 Postoperative delirium is associated with high morbidity and mortality 
and prolonged hospitalization with subsequent increased suffering and 
cost [10].
 There are many risk factors associated with postoperative morbidity and
 mortality in such age group of patients. Adequate preoperative 
treatment of respiratory problems (COPD, asthma) and prevention of 
postoperative cardiovascular complications (hypotension, hypertension, 
arrhythmia, ischemia, heart failure) may be the most important factor in
 reducing postoperative mortality after hip fracture surgery [11].
 Cardiovascular, respiratory and neurological complications are well 
correlated to age, preoperative bedridden state, neurological 
comorbidities, preoperative delirium, and frequent intraoperative 
hypotension.
Anesthesia type
The influence of anesthesia type on mortality and 
morbidity in hip fracture surgery is certainly a controversial issue in 
the literature. Regional anesthesia has significantly reduced incidences
 of deep venous thrombosis, surgical site infection, pulmonary 
complications, and amount of blood loss. General anesthesia has a lower 
incidence of hypotension and cerebrovascular accidents [12].
 A retrospective cohort study based on a nation wide sample of hospital 
admissions found that, there was no significant difference in risk of 
mortality with type of anesthesia in patients undergoing hip fracture 
surgery [13].
 Regarding thirty days mortality another study found that, spinal 
anesthesia was associated with significantly lower incidence of thirty 
days complications than general anesthesia in hip fracture surgery [14]. Liu et al. [15]
 found that there was no significant difference in post-operative 
mortality and complications between general anesthesia and peripheral 
nerve blocks in these cases [15]. Jin et al. [16]
 found that there was no significant difference between peripheral nerve
 blocks and epidural anesthesia in hip fracture surgery regarding 
postoperative mortality and complications [16].
 Continuous spinal anesthesia and ultrasound guided combined psoas 
compartment-sciatic nerve block (PCSNB) produced satisfactory quality of
 anesthesia in elderly high risk patients of hip replacement surgery but
 hemodynamic changes were fewer in us guided PCSNB [17].
Conclusion
A variety of appropriate anesthetic techniques can be
 used according to the patient individual condition regarding patient 
choice, comorbidities, psychological make up, anesthetist previous 
experience, surgical procedure, hospital facilities including funds 
available and postoperative care.
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