Does ketamine restore lost synapses? It may, but that doesn't explain its rapid clinical effects

Would this be useful then in stroke considering this?

In each minute, 14 billion synapses die. What is your doctor doing to replace or repair the synapses? ANYTHING AT ALL? I'm betting your doctor is doing nothing and not even telling you how many synapses you lost. I lost
4.041260 trillion synapses

Does ketamine restore lost synapses? It may, but that doesn't explain its rapid clinical effects