Irene Capelli1, Francesca Iacovella1, Laura Ghedini2, Valeria Aiello1, Angelodaniele Napoletano1, Lorenzo Marconi3, Pierluigi Viale3, Marco Masina2, Gaetano LA Manna4. 1. Nephrology, Dialysis and Kidney Transplantation Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy. 2. Geriatric Ward, Bentivoglio Hospital, Local Health Trust of Bologna, Bologna, Italy. 3. Department of Medical and Surgical Disciplines (DIMEC), Infectious Diseases, S. Orsola Hospital, University of Bologna, Bologna, Italy. 4. Nephrology, Dialysis and Kidney Transplantation Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy; gaetano.lamanna@unibo.it.
Abstract
BACKGROUND: Patients with autosomal dominant polycystic kidney disease (ADPKD) may require specific therapy with vasopressin receptor antagonists to slow the progression of renal disease. Because of its mechanism of action, the most common side effects are polyuria, nocturia, and polydipsia. Elevations of liver enzyme levels can also occur during treatment with Tolvaptan. Temporary drug withdrawal may be indicated if the patient is unable to hydrate adequately or if there are concomitant causes of dehydration, including major infectious events. During the Coronavirus Disease 2019 (COVID-19) pandemic, this should be considered in the management of patients on Tolvaptan therapy. CASE REPORT: We present the clinical case of a 51-year-old male with severe acute respiratory syndrome Coronavirus-2 (SARS-CoV-2) infection and ADPKD receiving Tolvaptan therapy with particular reference to the medical management of the patient during the infectious event. The patient was instructed to discontinue promptly Tolvaptan as soon as symptoms appeared. He was treated with forced hydration and symptomatic therapy. Nevertheless, a transient elevation of liver enzyme levels was detected. The timely discontinuation of Tolvaptan therapy avoided the risk of potential hepatotoxicity in a condition of known susceptibility. CONCLUSION: Tolvaptan therapy of patients with ADPKD is safe even during SARS-CoV-2 infection. There is need for appropriate and prompt patient counseling to avoid potentially adverse side effects.
BACKGROUND: Patients with autosomal dominant polycystic kidney disease (ADPKD) may require specific therapy with vasopressin receptor antagonists to slow the progression of renal disease. Because of its mechanism of action, the most common side effects are polyuria, nocturia, and polydipsia. Elevations of liver enzyme levels can also occur during treatment with Tolvaptan. Temporary drug withdrawal may be indicated if the patient is unable to hydrate adequately or if there are concomitant causes of dehydration, including major infectious events. During the Coronavirus Disease 2019 (COVID-19) pandemic, this should be considered in the management of patients on Tolvaptan therapy. CASE REPORT: We present the clinical case of a 51-year-old male with severe acute respiratory syndrome Coronavirus-2 (SARS-CoV-2) infection and ADPKD receiving Tolvaptan therapy with particular reference to the medical management of the patient during the infectious event. The patient was instructed to discontinue promptly Tolvaptan as soon as symptoms appeared. He was treated with forced hydration and symptomatic therapy. Nevertheless, a transient elevation of liver enzyme levels was detected. The timely discontinuation of Tolvaptan therapy avoided the risk of potential hepatotoxicity in a condition of known susceptibility. CONCLUSION: Tolvaptan therapy of patients with ADPKD is safe even during SARS-CoV-2 infection. There is need for appropriate and prompt patient counseling to avoid potentially adverse side effects.
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