Russia’s use of sustained artillery fires on entrenched Ukrainian troops in places like Bakhmut and Soledar is taking a toll that is being counted in the thousands. It appears that for every single Russian casualty there are 10 Ukrainians killed or wounded. Take a look at this letter notifying prospective patients who had planned elective surgery in Kiev to stay home (at link):
Scheduled hospital admissions have been halted in Kiev since 2 December on the orders of the Kiev administration. The reason is the huge number of wounded coming from Bakhmut.
According to an eyewitness, a journalist for the major Italian newspaper Corriere della Sera, more than 100 seriously wounded Ukrainian soldiers are being admitted to one hospital evacuation point alone.