The goal of blood glucose monitoring is to discover what is happening and then use this information to make decisions about food, insulin, activity etc. Lantus can be used to help provide a smoother basal insulin effect and a somewhat more predictable effect than other insulins (NPH, lente, ultralente etc). So, if you are achieving your preprandial and postprandial goals in a satisfactory manner without excessive hypoglycemia, then there is no reason to change your current system. We routinely use Lantus at diagnosis with our patients, even young children, with great results, but there is also no single absolute best insulin program. Everything must be individualized. If you have stopped the Lantus and your blood glucose levels are looking fine, then continue to do what is working. If you do not get adequate overnight insulin effect or if the insulin effect is too strong in the middle of the night, but does not last through to the next morning, then bedtime Lantus would likely help. Most of our patients need more than a single dose of Lantus, usually some at bedtime and a smaller amount in the morning. Some, just the opposite. Some also do better with morning or lunchtime NPH and bedtime Lantus, though. Meals and snacks are usually covered with boluses of Humalog or NovoLog. This is a lot of work but also provides more flexibility for food and activity changes, works nicely with carbohydrate counting and comes very close to the goals achieved using insulin pumps without wearing an actual pump.
SB