How is maternal epideral different then the ones for back pain? Also can u explain a caudal block? Like my pain doc says the meds also go up hill. How's that posable? Thanks for the video.😊😊😊
For back pain you usually don´t get an epidural, but an infiltration with local anesthetic around the small articular faces of the spine - so a different location. As for meds (I guess you´re referring to local anesthetics) going "up hill": in spinal anesthesia this would depend on the density of the injected fluid relative to the spinal fluid (think of it as like a cork coming to the surface of the water every time you push it down - or the other way around, a lead weight always dropping to the bottom). As for epidurals and periarticular injections spreading "uphill" along the spine: the injected fluid will spread between the bones of the spinal cord and the sheet of tissue surrounding the spinal cord in the case of an epidural or between sheets of connective/muscular tissue - think of this like pushing jam between two sheets of dough with a syringe - it will spread out between those even if you incline the sheets of dough upwards. Sorry for the bad analogy... As for caudal anesthesia: I will leave this up to Lahiru and his colleagues (I´m sure he´ll eventually cover it sometimes in the future).
How is maternal epideral different then the ones for back pain? Also can u explain a caudal block? Like my pain doc says the meds also go up hill. How's that posable? Thanks for the video.😊😊😊
For back pain you usually don´t get an epidural, but an infiltration with local anesthetic around the small articular faces of the spine - so a different location.
As for meds (I guess you´re referring to local anesthetics) going "up hill": in spinal anesthesia this would depend on the density of the injected fluid relative to the spinal fluid (think of it as like a cork coming to the surface of the water every time you push it down - or the other way around, a lead weight always dropping to the bottom).
As for epidurals and periarticular injections spreading "uphill" along the spine: the injected fluid will spread between the bones of the spinal cord and the sheet of tissue surrounding the spinal cord in the case of an epidural or between sheets of connective/muscular tissue - think of this like pushing jam between two sheets of dough with a syringe - it will spread out between those even if you incline the sheets of dough upwards. Sorry for the bad analogy...
As for caudal anesthesia: I will leave this up to Lahiru and his colleagues (I´m sure he´ll eventually cover it sometimes in the future).