Donato, Anthony

ObjectivePsoriatic arthritis (PsA) and ankylosing spondylitis (AS) are chronic inflammatory diseases associated with a higher risk of cardiometabolic comorbidities compared to the general population. Individual studies examining mortality in these patients have produced conflicting results. The present study was undertaken to perform a systematic review and meta‐analysis to analyze the all‐cause and cause‐specific mortality in PsA and AS from the available literature.MethodsA comprehensive database search was performed for studies reporting all‐cause or cause‐specific mortality in patients with PsA and AS compared with the general population. Pooled relative risks (RRs) were calculated using a random‐effects model.ResultsWe included 19 studies (11 of PsA, 7 of AS, 1 of both). In PsA studies, there was no increased mortality compared to the general population (RR 1.12 [95% confidence interval (95% CI) 0.96–1.30]; n = 10 studies). We found a higher all‐cause mortality in female (RR 1.19 [95% CI 1.04–1.36]) but not in male (RR 1.02 [95% CI 0.66–1.59]) PsA patients. Cardiovascular‐, respiratory‐, and infection‐specific mortality risks were significantly higher for PsA patients (RR 1.21 [95% CI 1.06–1.38], RR 3.37 [95% CI 1.30–8.72], and RR 2.43 [95% CI 1.01–5.84], respectively), but not cancer‐related mortality (RR 1.01 [95% CI 0.91–1.11]). In AS, we found a higher risk of death from all causes (RR 1.64 [95% CI 1.49–1.80]; n = 6 studies) and cardiovascular causes (RR 1.35 [95% CI 1.01–1.81]; n = 3 studies) compared to the general population. All‐cause mortality was high in both male (RR 1.56 [95% CI 1.43–1.71]) and female (RR 1.85 [95% CI 1.56–2.18]) AS patients. The included AS studies did not report mortality data for non‐cardiovascular causes.ConclusionThis systematic review and meta‐analysis showed a significantly increased risk of overall mortality in AS but not PsA. Cardiovascular‐specific mortality was higher for both PsA and AS, which emphasizes the importance of early screening and management of cardiovascular risk factors.

Acquired angioedema due to C1 inhibitor deficiency (C1INH-AAE) is a rare and potentially fatal syndrome of bradykinin-mediated angioedema characterized by episodes of angioedema without urticaria. It typically manifests with nonpitting edema of the skin and edema in the gastrointestinal (GI) tract mucosa or upper airway. Edema of the upper airway and tongue may lead to life-threatening asphyxiation. C1INH-AAE is typically under-diagnosed because of its rarity and its propensity to mimic more common abdominal conditions and allergic reactions. In this article, we present the case of a 62-year-old male with a history of recently diagnosed chronic lymphocytic leukemia (CLL) who presented to our hospital with recurrent abdominal pain, initially suspected to haveClostridium difficilecolitis and diverticulitis. He received a final diagnosis of acquired angioedema due to C1 esterase inhibitor deficiency due to concomitant symptoms of lip swelling, cutaneous nonpitting edema of his lower extremities, and complement level deficiencies. He received acute treatment with C1 esterase replacement and icatibant and was maintained on C1 esterase infusions. He also underwent chemotherapy for his underlying CLL and did not experience further recurrence of his angioedema.

Necrotizing fasciitis is a fulminant soft tissue infection characterized by rapid progression and high mortality. Rituximab is a generally well-tolerated immunosuppresive medication used for B-cell malignancies and some rheumatological disorders. We report a case of a 69-year-old male with chronic lymphocytic leukemia who suffered necrotizing fasciitis of his left lower extremity secondary to Clostridium septicum 7 weeks after treatment with rituximab. Despite immediate intravenous antimicrobial therapy and emergent fasciotomy with extensive debridement, his hospital course was complicated by septic shock and he required an above-the-knee amputation. Physicians need to be aware of the possibility of necrotizing fasciitis in patients presenting with skin infections after rituximab therapy.

Pulmonary toxoplasmosis is a serious pulmonary condition caused by the protozoan Toxoplasma gondii. It typically affects immunocompromised patients presenting acutely with cough, fever, myalgias, arthralgias and lymphadenopathy, and chronically with persistent cough and dyspnoea. Because of its protean features, it can mimic many more common lung conditions in the immunocompromised patient, including atypical pneumonia, Pneumocystis pneumonia and interstitial lung disease. In this article, we present the case of a 55-year-old woman who presented to our hospital with persistent dyspnoea and cough, initially suspected to have an arthritis-related interstitial lung disease. She received a final diagnosis of pulmonary toxoplasmosis after lung biopsy demonstrated Toxoplasma cysts, later confirmed by serology. Treatment with trimethoprim–sulfamethoxazole resulted in significant improvement of her respiratory symptoms after 3 months.