isobaric bupivacaineultra-low dose bupivacaineischemic cardiomyopathypulmonary hypertensionvalvular heart diseaseperiprosthetic femoral shaft fracture
…l catheter at L3-L4. An initial intrathecal injection of 1.5 mg isobaric bupivacaine with 5 mcg fentanyl was administered, followed by two further b…