Fig. 1

Flowchart indicating the status of cats with congestive heart failure (CHF) at initiation of torasemide prescription (n = 21). Among these cats, 10 cats (48%) presented with a first CHF episode requiring a first oral loop diuretic prescription and 11 (52%) had experienced at least one previous CHF episode requiring treatment adjustment owing to CHF deterioration despite furosemide prescription. Torasemide was prescribed, either alone or with an additional daily prescription of furosemide 12 h after torasemide intake (n = 4 at initiation of torasemide prescription, with 4 additional cats during the study period). IRIS stage evolution and death (number and causes of deaths) from Day 0 to the end of follow-up are also described for each feline group