Thrombotic thrombocytopenic purpura due to anti-ADAMTS13 antibodies in multiple myeloma.

CONTEXT: Thrombotic thrombocytopenic purpura (TTP) is a particularly serious form of thrombotic microangiopathy (TMA) due to the risk of multiple organ dysfunction. Several etiological factors such as infection, auto-immune disease, certain medications and cancers have been associated with TTP. CLINICAL CASES: A 74-year-old hypertensive woman with a history of thromboembolic disease was hospitalized for acute kidney injury (AKI) associated with pneumonia. Initial investigations were suggestive of Pneumocystis jirovecii infection and myeloma cast nephropathy. Several days later, the patient presented features of TTP. Von Willebrand factor-cleaving protease activity was less than 5% with a high level of IgG antibody directed against ADAMTS13. Treatment consisted of monthly 4-day cycles of dexamethasone and melphalan in combination with plasmapheresis and resulted in a favorable outcome. Three years after ceasing treatment, the patient presented no signs of hemolysis, but required chronic hemodialysis. CONCLUSION: The association of TMA, especially TTP, and multiple myeloma is exceptional. The authors report such a case that induced irreversible renal damage, but with stable clinical and laboratory parameters with a follow-up of 4 years.

[A study on malignant arterial hypertension: about 168 cases at the unit of nephrology-internal medecine of the University Hospital Center, Treichville, Abidjan]. / Hypertension artérielle maligne en milieu néphrologique à Abidjan: à propos de 168 cas colligés au Service de Néphrologie-Médecine Interne du Centre Hospitalier Universitaire de Treichville.

INTRODUCTION: malignant arterial hypertension (MAH) is a nosologic disorder which has not been described in Nephrology. The purpose of this study was to describe the profile of patients with MAH in the Division of Nephrology and to identify prognostic factors. METHODS: we conducted a retrospective, descriptive and analytical study from January 2013 to December 2018 in the Unit of Nephrology of the University Hospital Center in Treichville. The diagnosis of MAH was retained in patients with diastolic blood pressure (DBP) ≥ 130 mmHg, Keith Wegener grade III/IV hypertensive retinopathy, one or multiple visceral, cardiac and/or brain and/or renal diseases. RESULTS: we collected data from 168 patients. The average age of patients was 41.10 ± 14.86 years, with male predominance (sex ratio 1.54). Cardiovascular risk factors were AH (79.20%), alcohol (32.10%), tobacco (19.60%), chronic kidney disease (15.30%) and diabetes (11.30%). They were admitted with dyspnea (39.29%), hypertensive crisis (26.16%), consciousness disorders (10.12%). Clinical examination showed anemia (82.10%), lower limb edema (63.10%), acute pulmonary edema (37.50%). Arterial hypertension resulted in renal failure (95,9%), left ventricular hypertrophy (92.81%), stroke (16,67%), and cardiac and renal involvement (85%). Renal failure was chronic in 78% of cases. The causes of MAH were essential AH (56,8%), chronic glomerulonephritis (29.8%), and diabetes (6%). Outcome was favorable in 66,7% of cases and overall mortality rate was 25.6%. In multivariate analysis uremia ≥ 2g/l [OR=5,07; 95%CI = 2,39-10.75; p = 0.0001], hperkalaemia [OR = 3.50; 95% CI = 1.70 - 7.19; p = 0.001], hyponatremia [OR = 2.90; 95% CI= 1.40 - 6.03; p = 0.004], haemoglobin level < 12g/dl [OR=5,91; 95% CI=1,34-26,00; p=0,019] and end-stage renal disease [OR = 6.06; 95% CI = 2.04 - 18.18; p = 0.001] were factors associated with the occurrence of death. CONCLUSION: MAH is a consequence of poorly treated or untreated AH. It mainly affects young adults with multivisceral complications. In our Hospital, these were dominated by end-stage chronic renal disease. Hence the importance of early diagnosis and adequate management in patients with AH.

[Outcome of acute renal failure in subjects with HIV living in Abidjan, Ivory Coast over the period 1st January 2014 to 31st December 2017]. / Profil évolutif de l'insuffisance rénale aiguë chez les personnes vivant avec le VIH à Abidjan, Côte d'Ivoire du 1er janvier 2014 au 31 décembre 2017.

In Ivory Coast, the prevalence of human immunodeficiency virus (HIV) infection is high. Any organ can be affected, in particular the kidney. Some studies conducted in Ivory Coast highlighted that opportunistic infections are a poor prognostic factors for acute renal failure (ARF). The purpose of this study was to investigate the other possible factors associated with ARF outcome among subjects with HIV infection. We conducted a retrospective analytical study, at the University Hospital Center of Yopougon over the period January 2014-December 2017. All patients over the age of 18 years with HIV infection associated with ARF were enrolled. The study included 73 patients, reflecting a rate of 24%. The average age of patients was 39.32 ± 10.50 years, ranging from 18 to 65 years. Sex ratio of 1.6 favoured women. Obesity (p=0.047; OR=8.72; CI (95%)=1.07-39.21) and CD4 count < 200/mm3 (p=0.000; OR=58.50; IC (95%)=10.31-55.12) were associated with poor prognosis of ARF. In Ivory Coast, the hospital prevalence of ARF in patients with HIV is high. Unfavorable outcome included death or chronicity. In addition to deep immunosuppression already known as a poor prognostic factor, this study showed that obesity is associated with unfavorable outcome of ARF in subjects with HIV.

Mortality in the elderly with acute kidney injury in an internal medicine department in Abidjan, Cote D'Ivoire.

Acute kidney injury (AKI) in the elderly is characterized by high mortality. The objective of this study is to identify the causes of death in the elderly with AKI. This is a prospective cohort study with a descriptive purpose which was carried out during the period from January 2009 to December 2014 in the Department of Nephrology-Internal Medicine of Treichville University Hospital. The diagnosis of AKI was made on the basis of serum creatinine (SCr) values determined during hospitalization, according to KDIGO classification. Our study involved 107 elderly aged 65 and older with AKI. The hospital mortality rate was 46.7% (50/107). The average age of deceased patients was 71.8 ± 7 years with extremes of 65 and 90 years. We observed a male predominance with a sex ratio (41/9) of 4.55. AKI on admission was in Stage 1 in 16% of cases, in Stage 2 in 24%, and in Stage 3 in 60% cases. SCr was normal in 8%, the AKI was in Stage 1 in 34% (P = 0.09), Stage 2 in 18% (P = 0.001), and Stage 3 in 40% (P = 0.0001). AKI in deceased patients was organic in 36% of cases, obstructive in 30%, and functional in 6%. The etiologies of AKI were infections (46%), cancer (18%), benign tumors of the urinary tract (12%), malignant hypertension (6%), decompensated heart disease (6%), and drugs (6%). The main causes of death were sepsis (28%), cardiovascular disease (22%), severe renal failure (20%), pelvic cancers (16%), and liver failure (12%). All patients with cancer (P = 0.001) or HIV infected (P = 0.009) died. Sixty-eight percent of deaths occurred the 1st week. Death was earlier by sepsis and cardiovascular disease than by cancer. Mortality is high in the elderly. The main causes of death were sepsis, cardiovascular disease, renal failure, pelvic cancer, and liver failure.

Prevalence and risk factors of chronic kidney disease in Cote D'Ivoire: An analytic study conducted in the department of internal medicine.

Chronic kidney disease (CKD) has become a public health problem because of its increasing prevalence. The objective of this study was to describe the current profile of CKD in our working conditions. This is a descriptive retrospective study of patients admitted for CKD during the period from January 2010 to December 2014 in the Internal Medicine Department of the university hospital of Treichville in Abidjan. CKD was defined by a glomerular filtration rate below 60 mL/min lasting for at least three months. We collected 252 cases of CKD out of 3573 patients recorded during the study period, yielding a prevalence of 7%. The mean age was 39.6 ± 14 years (15-83 years). We observed a male predominance (sex ratio 1.2:1). Of the CKD patients studied, 67.1% were hypertensive, 7.9% were diabetic, and 8.7% were positive for human immunodeficiency (HIV) virus. The CKD was Stage 3 in 2.4%, Stage 4 in 3.2%, and Stage 5 in 94.4% of the patients. The etiology of CKD was hypertension in 59.9% of cases, followed by chronic glomerulonephritis (25%), HIV infection (9.1%), and diabetes (4.8%). On bivariate analysis, hypertension was the cause of CKD in 48.8% of patients under 35 years, 66.4% in patients between 35 and 64 years, and 85.4% in patients ≥65 years (P = 0.001). Chronic glomerulonephritis was the cause of CKD in 40.2% of patients under 35 years, in 14.3% between 35 and 64 years, and in 4.8% of patients ≥65 years (P = 0.0001). CKD is a common cause of hospitalization in our department. Patients generally consulted at the late stage of the disease. Risk factors are mainly hypertension, HIV infection, and diabetes.

[Characteristics of chronic renal failure in black adult patients hospitalized in the Internal Medicine department of Treichville University Hospital]. / Particularités de l'insuffisance rénale chronique chez des patients adultes noirs hospitalisés dans le service de médecine interne du CHU de Treichville.

OBJECTIVE: To describe the epidemiological, clinical, biological aspects, treatment and outcome of chronic renal failure. METHODS: A retrospective study was conducted on medical data of 301 inpatients with chronic renal failure from January 1, 2004 to December 31, 2008 in the internal medicine department of Treichville university hospital. RESULTS: The hospital prevalence of chronic renal failure was 7.5%. The average patient age was 44±10 years [range : 16-86 years] and sex ratio was 1.3. The main medical histories were self-medication (38.5%) and hypertension (33.5%). In 82.4% cases, it was the end-stage renal disease. Biological abnormalities were important. The causes were dominated by nephroangiosclerosis noted in 25.3%, followed by HIV-associated nephropathy in 17% and chronic interstitial nephritis in 10.3%. Treatment consisted of transfusion in 71% and dialysis in 16%. Lethality was 54%. CONCLUSION: The chronic renal failure is a fairly common cause of hospitalization in our department. His prognosis is terrible. The main causes are nephroangiosclerosis and HIV-associated nephropathy. Accent should be placed on preventive measures of hypertension and AIDS.