Rheumatology
Clinical discussions on autoimmune diseases, biologic therapies, vasculitis, and musculoskeletal conditions.
Recent Discussions
How would you approach management of retroperitoneal fibrosis causing ureteral compression that has already caused irreversible loss of kidney function?
I agree with my colleagues and will add some additional thoughts. While I agree that tissue diagnosis is helpful whenever it can be obtained (both to differentiate IgG4-related vs idiopathic RPF and to exclude other causes such as lymphoma, sarcoma, and Erdheim-Chester Disease), it is often the case...
What is your approach to nephrology referral for patients with lupus nephritis?
The answer to this question "depends" on many factors.I had the luxury of learning under some lupus nephritis greats in the 1990s (John "Jack" Klippel, H Austin, and J Balow... the high-dose NIH CYC regimen guys). Therefore, I am fortunate to feel confident in my abilities to care for LN better than...
Is it still significant to denote the etiology of ILD in a patient with PPF?
Yes, absolutely! Infact, the most effective treatment in patients without IPF (PPF) is treatment of the cause. So if there is underlying autoimmune disease or exposure, primary treatment should be directed against that trigger and this has potential to stop progression and even improve lung function...
Would you biopsy calcified lung nodules and or lymphadenopathy that have shown stability over a 2-year period, in a bid to rule out sarcoidosis?
No. Certainly not without a comprehensive occupational and other exposure history. Follow "the rules" for the assessment of any sarcoidosis suspect. Do a physical exam to look for extrapulmonary signs of sarcoidosis. Order an eye exam to assess for ocular sarcoidosis. Obtain baseline MTB testing and...
How soon after a fracture would it be safe to start anti-resorptive therapy?
This is an important question. There is no definitive answer, and there have been no clinical or preclinical studies that demonstrate delayed healing in the presence of bisphosphonates. Personally, I favor waiting a few weeks before we start. That also gives us time to do a proper metabolic workup. ...
Do you perform genetic testing when patients have persistent hypogammaglobulinemia after rituximab therapy?
I would not routinely perform genetic testing. Multicenter studies (Labrosse et al., PMID 33862010; and Otttaviano et al., PMID 35892275) show that genetic testing returns a low yield, <5%. Several authors suggest that the risk of persistent hypogammaglobulinemia due to PID is increased if there is ...
When do you consider tapering tocilizumab in patients with GCA in remission?
This is a timely question and recent data sheds some light on this important topic. The risk of GCA relapse is approximately 50% (Mainbourg et al., PMID 30951256) in all comers. The GIACTA trial (Stone et al., PMID 28745999) utilized a one-year course of TCZ. A recent publication of the extension ph...
How long after stopping prednisone do ESR and CRP become clinically reliable for reassessing disease activity?
As with most issues related to corticosteroids, the dose and duration of use matter. When steroids have been tapered slowly after a lengthy period of use, e.g., patients with PMR, it may take weeks (at the least) until we get a true reading of their ESR and CRP values. For shorter tapers, such as fo...
Do you reduce the dose of hydroxychloroquine in patients with skin graying if they are not particularly bothered by this side effect?
1. I would check a trough whole blood HCQ level. Nathalie Costedoat-Chalumeau and her colleagues found higher levels in patients who developed skin pigmentation (Jallouli et al., PMID 23824340), but actual levels were not reported. Petri et al also showed that levels above 1200 ng/mL were associated...
Would you stop methotrexate or leflunomide if MCV increases after starting the medication with no other parameters of anemia or leukopenia?
I would take this as a sign that the patient is taking their medication. Pretty common and definitely wouldn’t withhold RA tx for this.