Shrunken Pore Syndrome Is Frequently Occurring in Severe COVID-19

A selective decrease in the renal filtration of larger molecules is attributed to the shrinkage of glomerular pores, a condition termed Shrunken Pore Syndrome (SPS). SPS is associated with poor long-term prognosis. We studied SPS as a risk marker in a cohort of patients with COVID-19 treated in an i...

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Main Authors: Anders O. Larsson, Michael Hultström, Robert Frithiof, Miklos Lipcsey, Mats B. Eriksson
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/23/24/15687
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author Anders O. Larsson
Michael Hultström
Robert Frithiof
Miklos Lipcsey
Mats B. Eriksson
author_facet Anders O. Larsson
Michael Hultström
Robert Frithiof
Miklos Lipcsey
Mats B. Eriksson
author_sort Anders O. Larsson
collection DOAJ
description A selective decrease in the renal filtration of larger molecules is attributed to the shrinkage of glomerular pores, a condition termed Shrunken Pore Syndrome (SPS). SPS is associated with poor long-term prognosis. We studied SPS as a risk marker in a cohort of patients with COVID-19 treated in an intensive care unit. SPS was defined as a ratio < 0.7 when the estimated glomerular filtration rate (eGFR), determined by cystatin C, calculated by the Cystatin C Caucasian-Asian-Pediatric-Adult equation (CAPA), was divided by the eGFR determined by creatinine, calculated by the revised Lund–Malmö creatinine equation (LMR). Clinical data were prospectively collected. In total, SPS was present in 86 (24%) of 352 patients with COVID-19 on ICU admission. Patients with SPS had a higher BMI, Simplified Physiology Score (SAPS3), and had diabetes and/or hypertension more frequently than patients without SPS. Ninety-nine patients in the total cohort were women, 50 of whom had SPS. In dexamethasone-naïve patients, C-reactive protein (CRP ), TNF-alpha, and interleukin-6 did not differ between SPS and non-SPS patients. Demographic factors (gender, BMI) and illness severity (SAPS3) were independent predictors of SPS. Age and dexamethasone treatment did not affect the frequency of SPS after adjustments for age, sex, BMI, and acute severity. SPS is frequent in severely ill COVID-19 patients. Female gender was associated with a higher proportion of SPS. Demographic factors and illness severity were independent predictors of SPS.
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spelling doaj.art-249c97d42ccb44589da4289911516a982023-11-24T15:26:03ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-12-0123241568710.3390/ijms232415687Shrunken Pore Syndrome Is Frequently Occurring in Severe COVID-19Anders O. Larsson0Michael Hultström1Robert Frithiof2Miklos Lipcsey3Mats B. Eriksson4Department of Medical Sciences, Section of Clinical Chemistry, Uppsala University, 751 85 Uppsala, SwedenDepartment of Surgical Sciences, Anaesthesiology and Intensive Care Medicine, Uppsala University, 751 85 Uppsala, SwedenDepartment of Surgical Sciences, Anaesthesiology and Intensive Care Medicine, Uppsala University, 751 85 Uppsala, SwedenDepartment of Surgical Sciences, Anaesthesiology and Intensive Care Medicine, Uppsala University, 751 85 Uppsala, SwedenDepartment of Surgical Sciences, Anaesthesiology and Intensive Care Medicine, Uppsala University, 751 85 Uppsala, SwedenA selective decrease in the renal filtration of larger molecules is attributed to the shrinkage of glomerular pores, a condition termed Shrunken Pore Syndrome (SPS). SPS is associated with poor long-term prognosis. We studied SPS as a risk marker in a cohort of patients with COVID-19 treated in an intensive care unit. SPS was defined as a ratio < 0.7 when the estimated glomerular filtration rate (eGFR), determined by cystatin C, calculated by the Cystatin C Caucasian-Asian-Pediatric-Adult equation (CAPA), was divided by the eGFR determined by creatinine, calculated by the revised Lund–Malmö creatinine equation (LMR). Clinical data were prospectively collected. In total, SPS was present in 86 (24%) of 352 patients with COVID-19 on ICU admission. Patients with SPS had a higher BMI, Simplified Physiology Score (SAPS3), and had diabetes and/or hypertension more frequently than patients without SPS. Ninety-nine patients in the total cohort were women, 50 of whom had SPS. In dexamethasone-naïve patients, C-reactive protein (CRP ), TNF-alpha, and interleukin-6 did not differ between SPS and non-SPS patients. Demographic factors (gender, BMI) and illness severity (SAPS3) were independent predictors of SPS. Age and dexamethasone treatment did not affect the frequency of SPS after adjustments for age, sex, BMI, and acute severity. SPS is frequent in severely ill COVID-19 patients. Female gender was associated with a higher proportion of SPS. Demographic factors and illness severity were independent predictors of SPS.https://www.mdpi.com/1422-0067/23/24/15687biomarkercorticosteroidsCOVID-19 creatininecystatin CeGFRgender
spellingShingle Anders O. Larsson
Michael Hultström
Robert Frithiof
Miklos Lipcsey
Mats B. Eriksson
Shrunken Pore Syndrome Is Frequently Occurring in Severe COVID-19
International Journal of Molecular Sciences
biomarker
corticosteroids
COVID-19 creatinine
cystatin C
eGFR
gender
title Shrunken Pore Syndrome Is Frequently Occurring in Severe COVID-19
title_full Shrunken Pore Syndrome Is Frequently Occurring in Severe COVID-19
title_fullStr Shrunken Pore Syndrome Is Frequently Occurring in Severe COVID-19
title_full_unstemmed Shrunken Pore Syndrome Is Frequently Occurring in Severe COVID-19
title_short Shrunken Pore Syndrome Is Frequently Occurring in Severe COVID-19
title_sort shrunken pore syndrome is frequently occurring in severe covid 19
topic biomarker
corticosteroids
COVID-19 creatinine
cystatin C
eGFR
gender
url https://www.mdpi.com/1422-0067/23/24/15687
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