Multiple Kidney Infarctions Due to COVID-19 Infection in a Patient with Repeatedly Negative RT-PCR Tests-A Case

Ante Mayer1, Maja Mizdrak1,2, Ivan Mizdrak3

  • 1Department of Nephrology and Hemodialysis, University Hospital Centre of Split, Split, Croatia.

Insights

This case report highlights COVID-19 can cause kidney infarction without typical symptoms. Early diagnosis requires integrated clinical and laboratory approaches, especially with negative PCR tests.

Area of Science:

  • Nephrology
  • Infectious Diseases
  • Cardiovascular Medicine

Background:

  • Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, causing COVID-19, has led to widespread health concerns.
  • While respiratory symptoms are common, COVID-19 is increasingly linked to arterial thrombosis and thromboembolic events.
  • Renal artery embolism is a rare but serious complication, often presenting with nonspecific symptoms, making diagnosis challenging.

Observation:

  • A previously healthy 63-year-old male presented with multiple right kidney infarctions.
  • The patient exhibited no typical respiratory or other overt clinical manifestations of COVID-19.
  • Initial reverse transcription-polymerase chain reaction (RT-PCR) tests for SARS-CoV-2 were negative.

Findings:

  • Diagnosis of COVID-19 was confirmed through serological screening, despite negative RT-PCR results.
  • The patient's kidney infarctions were directly attributed to COVID-19 infection.
  • This case underscores the potential for atypical presentations of COVID-19.

Implications:

  • Highlights the necessity of considering COVID-19 in patients with unexplained arterial thrombosis, even without respiratory symptoms.
  • Emphasizes the importance of integrating clinical, laboratory, microbiological, and radiological data for accurate diagnosis of unusual COVID-19 presentations.
  • Suggests serological screening may be crucial for diagnosing COVID-19 in cases with false-negative RT-PCR results and atypical manifestations.

Related Concept Videos

Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute Kidney Injury IV: Diagnostic Studies and Prevention

Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
42
Acute Kidney Injury I: Introduction01:22

Acute Kidney Injury I: Introduction

Introduction:Acute Kidney Injury (AKI) describes a swift decrease in kidney function occurring over hours to days, characterized by the kidneys' failure to remove waste products from the bloodstream. This leads to dangerous complications like metabolic acidosis, fluid overload, and electrolyte imbalances, such as hyperkalemia, which can cause life-threatening arrhythmias. AKI is common in both hospital and outpatient settings, often triggered by dehydration, sepsis, or exposure to nephrotoxic...
39
Acute Pyelonephritis II: Diagnostic Studies and Management01:28

Acute Pyelonephritis II: Diagnostic Studies and Management

Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
22
Myocarditis II: Clinical Features and Diagnostic Tests01:27

Myocarditis II: Clinical Features and Diagnostic Tests

Myocarditis is an inflammation of the heart muscle. The symptoms vary widely, encompassing asymptomatic presentations to severe, acute manifestations.Clinical PresentationAsymptomatic cases: In some instances, myocarditis may be asymptomatic, with the infection resolving without intervention. These cases often go undetected unless discovered incidentally through diagnostic imaging or tests conducted for other reasons.General Early Symptoms: Early symptoms of myocarditis are non-specific and can...
13
Acute Kidney Injury III: Clinical Manifestations01:29

Acute Kidney Injury III: Clinical Manifestations

Acute Kidney Injury (AKI) progresses through distinct clinical phases: the oliguric, diuretic, and recovery phases, each marked by unique manifestations and challenges.Oliguric Phase:The oliguric phase is the initial stage of AKI, typically lasting 10 to 14 days. This phase is marked by a significant reduction in urine output, usually less than 400 mL per day, indicating decreased kidney function. Fluid retention is a prominent feature, leading to symptoms such as edema, hypertension, and...
46
Acute Kidney Injury II: Pathophysiology01:29

Acute Kidney Injury II: Pathophysiology

Acute kidney injury (AKI) causes are categorized into three primary categories based on the location of the injury: prerenal, intrarenal (or intrinsic), and postrenal causes. This classification guides clinical management and illustrates how different pathways can impair kidney function.Etiology and Pathophysiology of Acute Kidney Injury1. Prerenal causesEtiology: Prerenal Acute Kidney Injury, the most common type, occurs when reduced blood flow to the kidneys decreases filtration capacity...
37