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View Full Version : new to the group: Cody (14 1/2 y/o lab mix)



kat.steele
09-06-2014, 01:29 PM
Hi all,
I am new to the group, but not to having a dog with Cushing's. I have a specific question which I will get to after I introduce Cody.

Cody is 14 1/2, neutered female, lab mix, 38 pounds. She was diagnosed with hypothyroid and pituitary dependent Cushing's almost 3 years ago. After a rocky first year, with difficulty getting control of symptoms and several bouts of pancreatitis, she finally stabilized, except for a couple more mild bouts of pancreatitis in the past 2 years. She has been stable until recently on Trilostane 40 mg per day, Soloxine 0.4 mg per day, and Proin and DES for incontinence management (which preceded the Cushings diagnosis). She is also on a low fat Rx diet to manage the pancreatitis.

The past couple of months she has started anew with Cushings symptoms: PU/PD with increased incontinence, constant panting, increased muscle wasting and weakness in her back legs, pot belly, and a 3 lb. weight loss despite increased appetite. She has diarrhea on and off, though her stool exam is normal. Her last two ACTH stim numbers have been consistently elevated: July: 6.5 / 10.7 and August: 7.5 / 10.5. Her ALT enzyme is elevated at 186.

A repeat abdominal ultrasound on Sept. 3 showed an increase in liver enlargement and severely increased enlargement of both adrenals since the first ultrasound almost 3 years ago. Diagnosis remains pituitary dependent Cushings. Treatment recommendation is to increase Trilostane to 50 mg [30 mg am & 20 mg pm] per day, which was started 3 days ago (no effect noticed yet, but it's very early).

My question: Does anyone have experience with a resurgence of Cushing's symptoms after some time, and if so, what treatment was helpful and what was the cause?? Cody is really uncomfortable but at her age I don't want to do harm by too much intervention. A dilemma I know so many of you have faced.

Thanks!

Kathy Steele

labblab
09-06-2014, 03:49 PM
Hello Kathy, and welcome to you and Cody!

To cut to the chase, yes, it is common for trilostane doses to require alteration over the course of time, both upward and downward based on each dog's individual response to the drug. So I would say you are actually lucky if Cody remained consistently stabilized on an unchanged dose over a three year time period. Also, as far as the ultrasound results, it is a known effect of trilostane that the adrenals will enlarge over time when treated with the drug.

Based on the most recent ACTH tests, there is a good chance that the majority of Cody's rebounding symptoms will resolve again once her cortisol level has dropped back into a therapeutic range. A couple of her current problems may have other sources, however. For instance, weight loss and diarrhea are not typical of high cortisol. However, my own Cushpup exhibited both those problems before we got his cortisol under control, so that just shows that not every dog follows an identical pattern of symptom progression.

Good luck on the increased dose, and hopefully you will soon be seeing positive results.

Marianne

kat.steele
09-07-2014, 02:14 PM
THank you Marianne,
Good to hear that others have a similar issue of needing to change the dose. Last night was the first in a while where Cody did not wake up to drink and pee. That in itself is already an improvement.
Kathy