Nope... Not kidding. I'm certain she had either LA resistance or I had chinese LA. MD entropy has had the same experience after 3 dural punctures... I actually thought of his post that day. I also consulted the board runner after the 2nd spinal. He has had the same experience.
A couple of facts:
The case was done around 9:30am. By 2:00pm she was up and walking... By 5:00 pm she had made it 350 ft.
Having seen this twice in the past 6 months, and having to put someone to sleep with a full stomach (after 2 spinals) I took it upon myself to learn from this unusual and bizarre situation- although with good anesthesia backup.
Regarding Dream Machines, question. Very reasonable question for sure. I did not think I was anywhere close to having a total spinal. After 5 minutes motors are 5/5 throughout, and there is absolutely no level. Total spinal is very unlikely to happen if you dont have any evidence of a working block after 5 minutes. Mechanical explanation? Maybe a connection with a dural sleeve and loss of intrathecal LA? Maybe... Maybe not. If she wanted to, she could have got on her feet and walked right out of the OR. I guess you just had to be there to fully appreciate the scenario.
After the 2nd spinal, she still had full motors (15 minutes later). This was the point where I decided to either:
A) go to sleep with a nasty airway or
B) try and achieve neuraxial blockade and learn a bit more regarding failed SAB.
After the third spinal, (20 minutes after the first one), she still didnt have full motor function, but she did have substantial weakness.
Pressures stayed in the 130s for about 30 minutes... and gradually climbed to almost pre-existing levels after about an hour (170s)
All in all, she received 38 mg of intrathecal bupi and 15 mls of .25% bupi to her fem. nerve. I dont think the femoral block is a big deal. Some of my partners do them all the time with spinals. I placed it mainly because I didnt want the spinal to wear off in the middle of the case. T10 was the highest level I got and it did not last long at that.
Ive posted this case so I can share my experience and others can learn from what I have seen. I know 3 spinals is sort of like Taboo. What would others have done? GA on a 210KG nasty airway after failed SAB. Could it have been done. Of course. Difficult airways is what we do. How about waiting for 30 minutes in hopes that the block would take... while the orthopod is pacing not so patiently?. Yes, I could have gone this route with or without a result (highly doubt I would have achieved surgical anesthesia)
In the end. This patient received exactly what she wanted. She did not get a GA, had great pain control and did not require any narcs for at least 24 hrs.
Did I learn from this patient? Hell yeah. I dont fancy 3 SAB, but this is an experience in my time as a provider. I will not forget it.
Fire away!