Spinal AnesthesiaDoes Spinal Anesthesia for Prolapse Surgery With Lead to Urinary Retention?

Inclusion Criteria:

1. Women over the age of 40
2. Women scheduled for pelvic organ prolapse surgery as well as concomitant incontinence sling surgery
3. Post-void residual <150 cc prior to surgery
4. Surgery length of at least 1 hour
5. BMI <40
6. ASA class 1-2

Exclusion Criteria:

1. Contraindications to surgery
2. Contraindications to outpatient surgery, and requiring inpatient stay for medical comorbidities. The decision for a required inpatient stay will be decided prior to surgery based on the recommendations of the patient's primary care physician or specialist, such as cardiology or pulmonology.
3. BMI >40
4. ASA class 3 or 4 that would be a contraindiction to both spinal or general anesthesia
5. Evidence of voiding dysfunction or urinary retention on pre-operative urodynamics, including PVR >150, or dyssynergic sphincter dyssynergia
6. Neurological diseases that can interfere with spinal anesthesia
7. Anticoagulation therapy within a week of surgery
8. History of back surgery that would prevent successful spinal anesthesia
9. History of back deformity, such as scoliosis that would prevent successful spinal anesthesia