[Relapse of lupus nephritis in temporal association with anti SARS-CoV-2 vaccination].

During the past two years we have witness a tremendous worldwide health crisis imposed by the coronavirus disease (COVID-19). This situation led to the urgent development and implementation of vaccines in an attempt to decrease not only the SARS-CoV-2 transmissibility but also the severe forms of COVID-19. Although these vaccines were approved based on an adequate benefit-risk ratio, at the moment of their implementation in 2021 we did not have sub-studies in special populations; patients with systemic lupus erythematosus (SLE) among them.

Hypertension and kidney disease progression.

Hypertension is a common finding in patients with chronic kidney disease (CKD) and it is associated with kidney disease progression. Hypertensive nephropathy is a diagnosis, mostly based on clinical suspicion and defines many cases of CKD of unknown etiology. The risk of progression of hypertension-attributed nephropathy seems to have a genetic background as has been demonstrated in African-American patients with gene risk variants.

Juxtaglomerular cell tumour as a curable cause of hypertension: case presentation.

Arterial hypertension is a highly prevalent disease and its secondary causes must always be kept in mind because the treatment and prognosis differ between these and essential hypertension. Here we present the first reported case in Argentina of a 21-year-old patient with arterial hypertension and hypokalaemia due to a renin-secreting juxtaglomerular cell tumour, which was diagnosed after seven years of development.