Lymphoma Worries
The 2017 version of the guideline did not include information about lymphoma, but this is the thing that most patients with Sjögren disease will worry about, Dr. Price said. “They all look it up on YouTube, they all come back and tell me that they are really worried they’ll develop it.”
The question that was therefore posed was whether there were any measurable biomarkers that could predict the development of lymphoma in adults and children. Seven predictors were found, the strongest being a low level of complement C4 alone or together with low levels of C3. Other predictors were salivary gland enlargement, lymphadenopathy, anti-Ro/La and rheumatoid factor autoantibodies, cryoglobulinemia, monoclonal gammopathy, and a high focus score.
All of these predictors put someone in a higher risk category for lymphoma. If two or fewer of those features are present, the lifetime risk is “probably below 2%,” Dr. Price said. However, if all seven are present, the lifetime risk is “approaching 100%.”
The recommendation made on the basis of these findings is that people with Sjögren disease need to be offered early further investigation if they present with any new salivary gland swelling or other symptoms that might suggest the development of lymphoma. In this regard, a labial salivary gland biopsy might provide additional prognostic information.
‘Do the Little Things Well’
“You have to do the little things well,” Dr. Price said. “Many of the patients [who] come to see me for a second opinion have not been prescribed the right eye drops, have not been given advice on dental care,” with their management taking “too much on the rheumatological treatments.”
Rheumatologists are of course not trained or expected to be experts in ophthalmology or dentistry, but “you need to look at their mouth and you do need to examine their eyes, and you do need to give them some advice,” Dr. Price advised.
Thankfully, that is where the updated guidelines should help, with a recommendation that people with Sjögren disease should use preservative-free eye drops every 2-3 hours.
“It’s vital you avoid preservatives, because preservatives flatten the corneal surface and reduce the surface area and can cause inflammation in their own right,” Dr. Price cautioned, adding that there are plenty of suitable eye drop formulations available.
In regard to helping with dry mouth symptoms, the recommendation is to use a saliva substitute for symptomatic relief. For vaginal dryness, the recommendation is to consider advising topical nonhormonal vaginal moisturizers plus estrogen creams or pessaries in peri- or postmenopausal women with significant vaginal dryness.
“Very important, however, is to maintain a neutral pH, an alkaline environment in the mouth because acid damages dental enamel,” Dr. Price said. Conversely, an acidic vaginal moisturizer is needed to treat vaginal dryness.
Dental hygiene is important. Regular brushing with a fluoride-based toothpaste is advised. The use of xylitol-containing products has been shown to reduce bacteria known to increase the risk for dental decay. Telling patients not to eat between meals is also simple but important advice.
“We do recommend that patients are assessed holistically,” Dr. Price said, noting that they should be offered access to cognitive-behavioral therapy and exercise therapies to help with the symptoms of fatigue and joint pain.