Acta Medica Mediterranea, 2014, 30: 1267 A LIFE-THREATENING COMPLICATION IN CONNECTIVE TISSUE DISEASES: TWO CASE REPORTS MARGIOTTA DOMENICO PAOLO EMANUELE, ZARDI ENRICO MARIA, ALEMANNO PAMELA, MARIGLIANO BENEDETTA, PIPITA MARIA ELENA, AFELTRA ANTONELLA Integrated Research Center, Clinical Medicine and Rheumatology Dep., Campus Bio-Medico University of Rome, Italy ABSTRACT Here we discuss diagnosis and management of DAH in two patients affected by systemic lupus erythematosus and granulomatosis with Polyangiitis. Multiple infections complicated the clinical course of DAH in both patients. A combination of therapies including antibiotics, anti-viral and antifungal treatment caused a good response and greatly contributed to the safe and full recovery of DAH in both cases. Key words: Diffuse Alveolar Haemorrhage, Granulomatosis Poliangiitis, Systemic Lupus Erythematosus. Received May 18, 2014; Accepted September 02, 2014 Introduction Diffuse alveolar haemorrhage (DAH), caused by the disruption of the alveolar-capillary basement membrane with severe bleeding into the alveolar spaces is an uncommon life-threatening complication that may affect patients with connective tissue diseases(1). In this report, we discuss the background of the abrupt onset of DAH in two patients affected by two different connective tissue diseases [systemic lupus erythematosus (SLE) and granulomatosis with Polyangiitis (Wegener’s)], in which, diagnostic clinical course, treatment and management were very critical. Case 1 A 23-year-old girl was transferred to our department from another Hospital, for fever resistant to antibiotics, anemia, dyspnea and suspected flare of Systemic Lupus Erythematosus (SLE). She was diagnosed with SLE at just 15 years of age and treated with NSAIDs, high doses steroids and hydroxychloroquine. On admission to our Department, she was apyretic, eupnoic (sO2 99%) and tachycardic (HR 110 bpm) with diffuse joint pain. The pulmonary examination showed absence of breath sounds at both bases whereas, abdomen and heart were normal; the chest radiography showed lifting hemi-diaphragms. Blood examination confirmed the presence of anemia (haemoglobin 6.8 g/dL). Blood cultures, pharyngeal secretions, urine, sputum, vaginal fluid, serology for bacterial or viral infections (hepatitis viruses, HIV, adenovirus, VDRL, parvovirus B19, citomegalovirus, salmonella, brucella, toxoplasma) were all negative. Echocardiography, abdominal and transvaginal sonography were normal. Blood transfusion, antibiotic and antifungal therapy was administered (teicoplanin 400 mg/day and fluconazole 400 mg/day), whereas methylprednisolone dosage was reduced to a 1 mg/kg/die. 48 hours after admission, she developed hyperpyrexia (≥ 40°C), associated 1268 with desaturation (sO2 77%), tachypnea, abdominal breathing, tachycardia (HR 150 bpm) with atrial fibrillation and altered state of consciousness. The haemogasanalysis showed signs of acute respiratory failure with a high lactate value(2). After treatment with high flux oxygen, the patient underwent an emergency chest CT that showed diffuse areas of “ground glass” parenchymal consolidation, with air bronchogram in both lower lobes, bilateral hilar enlargement, mild pleural and pericardial effusion and axillary lymphadenopathy (figure 1). The bronchoalveolar lavage, showing a rising quote of red blood cells, was compatible with DAH. Figure 1: Chest CT showing bilateral diffuse areas of “ground glass” parenchymal consolidation. Microbiological cultures on BAL showed herpes simplex virus type 1 and aspergillus fumigatus. Then, the patient was shifted to the intensive care unit to be intubated and mechanically ventilated; temporary tracheostomy was also performed. The patient received blood transfusions due to anemia (7 g/dL) and was treated with acyclovir (250 mg i.v. 3 times a day and then orally 200 mg 4 times a day) for 15 days, voriconazole (4 mg/kg i.v. 2 times a day and then orally 300mg/day) for two months and high doses of steroid (methylprednisolone 1g/day i.v. for three days then reduced to 1 mg/kg/day i.v.). Intravenous immunoglobulin (0.4 g/Kg/die for 5 days) was also started. After one week, she had a significant improvement of clinical conditions and she was extubated. Inflammatory indices were reduced and chest radiography was normal. She was shifted back to our department where antifungal therapy (voriconazol) was continued at the same dosage (300 mg/day, orally) whereas the steroid (methylprednisolone) was progressively reduced. She was discharged after 1 month with oral prednisone 25 mg (later reduced at 15 mg) and hydroxychloroquine 200 mg/day. After six months of follow up, the patient is in good clinical conditions and she is now taking Margiotta Domenico Paolo Emanuele, Zardi Enrico Maria et Al oral prednisone 7.5 mg/day and hydroxychloroquine 200 mg/day. She did not present flare of SLE anymore. Case 2 The medical history of a 74-year-old man started in 2010 with headache, fever and migrants arthralgias, lasting several months and responsive to therapy with NSAIDs and acetaminophen. In 2013, due to the new onset of fever, fatigue, bilateral episcleritis, migrants arthralgias, he was admitted to our Department. After admission, a severe worsening of renal function (creatinine of 4.6 mg/dL) proteinuria (1426 mg/24h) and the presence of urinary erythrocyte cylinders was observed, together with dyspnea, elevation of inflammatory markers (ESR 120 mm/h, C reactive protein 150 mg/dL) and positive low titer of ANA (1:80) and cANCA (1:20). Renal biopsy was performed which showed diffuse proliferative extracapillary glomerulitis framework, compatible with granulomatosis with Polyangiitis (Wegener’s). The patient received therapy with steroid bolus for three days (methylprednisolone 1g daily and then 1 mg/kg/day i.v.), but during the treatment presented hemoptysis, progressive worsening of dyspnea and acute respiratory failure. A CT chest showed multiple confluent areas of increased parenchymal density and diffuse pulmonary ground-glass in the parenchyma of both lungs, consistent with DAH (figure 2). Figure 2: Chest CT showing diffuse areas of bilateral “ground glass” parenchymal consolidation. The bronchoalveolar lavage showed the presence of a rising quote of red blood cells and a high titer positivity for CMV. Due to very critical condition renal insufficiency (creatinine of 4.8 mg/dL) hypoxia (desaturation 75% in course of Non Invasive Ventilation), anemia (haemoglobin 5.4 g/dL), the patient was shifted to the Intensive Care Unit, where he was subjected to blood transfusions A life-threatening complication in connective tissue diseases. Two case reports and to prolonged invasive mechanical ventilation for 20 days. Antiviral therapy with acyclovir (500 mg i.v. 3 times a day and then orally 400 mg 4 times a day) was started for a month. After extubation, because of persistence of a worsened renal function and oliguric state, the patient was hydrated and underwent 5 cycles of hemodyalisis (CVVHD). After haemodynamic stabilization, and improvement of renal function, nine cycles of therapeutic plasmapheresis were also performed to reduce the amount of immunocomplexes and, soon, the clinical condition ameliorated. The patient was discharged in good general conditions with oral steroid therapy (prednisone 30 mg/day) and cyclophosphamide (100 mg/day). His total duration of hospital stay was two months. One month after discharge the patient presented acute polyneuropathy with left palpebral ptosis and legs paresis. 1269 BAL. Interestingly, Aspergillus Fumigatus was also found in case 1. High rates of viral and fungal infections are reported during DAH [5]. The coexistence of opportunistic infections during DAH is often associated with(9) and complicates the clinical course leading to a delayed diagnosis. Moreover, opportunistic infections are like to worsen the prognosis, making it difficult to establish adequate therapeutic strategies. Intravenous immunoglobulins, antiviral and antifungal treatment may favour a good clinical response. Plasma exchange treatment and hemodyalisis may be also useful where indicated(10, 11). To date, plasma exchange is recommended as an adjunctive treatment for patients with severe renal and/or alveolar haemorrhage, although, definitive evidence supporting the use of plasmapheresis in DAH associated with AAV is lacking. Discussion Conclusion Here we expose diagnostic, therapeutic strategy and management of the DAH on two patients with different connective tissue diseases. In the case 1 a young woman with a flare of SLE developed DAH. DAH complicating SLE is a severe, rare event that affects only from 1 to 5.4% of these patients(3), predominantly young women with a median age of 29 years(4), with a mortality ranging from from 23% to 92%(3) and an overall survival amounted in only 53%, despite the increased usage of cyclophosphamide and plasmapheresis(5). A high prevalence of infection is associated to DAH in SLE patients(6). However, a 100% survival is also reported in patients receiving antibiotics at the onset of symptoms(7). In the case 2 an old man with a rapidly evolving granulomatosis with polyangiitis (Wegener’s), after developing acute kidney injury, a sudden DAH arose. Likewise case 1, also case 2 required mechanical ventilation. DAH associated with ANCA associated vasculitis (AAV) increases the relative risk of death by 8.6 times making these autoantibodies one of the strongest predictors of early mortality(8). Several topics of particular interest are present in these cases. Both cases DAH developed as sudden complication of flare of autoimmune disease. In both cases, viral infection by herpesviridae (HSV1 in case 1 and CMV in case 2) was present in Several complications, from mild to severe, may affect patients with connective tissue diseases(12-17). The DAH is one of more severe of these, since it may be a fatal event that we may better counter provided that the diagnosis is rapidly made and an aggressive combined treatment is instituted. Despite the major therapeutic advances in DAH, morbidity and mortality remain high and disease relapses occur frequently, although the reported mortality varies among the different studies due to the heterogeneity of the disease, patients and different treatments. In accordance with others(7) we believe that the precocious use of anti-infective therapy, concomitant with immunomodulants in case 1 and plasma exchange in case 2 have given a real contribute to the resolution of the disease; the great benefit that both patients had from mechanical ventilation is also to be emphasized. 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Abbreviatons: anti-double strained DNA antibodies (anti-dsDNA), anti-nuclear antibodies (ANA), Systemic Lupus Erythematosus (SLE), computed tomography (CT), continuous veno-venous hemodialysis (CVVHD), C-Reactive protein (CRP), erythrosedimentation rate (ESR), Haematocrit (Hct), Haemoglobin (Hb), heart rate (HR), Mean Corpuscular Volume (MCV), Non steroidal anti-inflammatory drugs (NSAIDs), oxyhemoglobin saturation (sO2), platelets (PLTs), red blood cells (RBC), white blood cells (WBC), liter (L) milliliter (mL), microliter (µl), kilogram (Kg), gram (g), milligrams (mg), nanograms (ng), millimeter (mm), hour (h), oxygen saturation (sO2), hearth rate (HR), intra-vein (i.v.) _________ Correspoding author ZARDI ENRICO MARIA Integrated Research Center, Clinical Medicine and Rheumatology Dep., Campus Bio-Medico University of Rome, via Alvaro del Portillo 21, 00128, Rome (Italy)
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