Publications by authors named "Soren Schwartz Sorensen"

Background: Solid organ transplant (SOT) recipients are at risk of severe COVID-19. Vaccination is an important preventive measure but may have side effects, including decreased leukocyte counts. We aimed to describe the prevalence and relative incidence of decreased leukocyte counts and changes in leukocyte counts before and after SARS-CoV-2 mRNA vaccination and SARS-CoV-2 infection in SOT recipients.

View Article and Find Full Text PDF

Background: We aimed to examine the epidemiology and outcomes of AdV disease in SOTr and assess the utility of AdV surveillance in SOTr <13 years.

Methods: SOTr transplanted at Rigshospitalet, 2010-2021, were included. The center had a screening program for SOTr <13 years with monthly plasma AdV tests the first 6 months following transplantation.

View Article and Find Full Text PDF

Background: Kidney transplantation is the ultimate treatment for end-stage kidney disease. Function of the kidney graft is not only dependent on medical factors but also on a complication-free surgical procedure. In the event of major surgical complications, the kidney graft is potentially lost and the patient will return to the waiting list which may be long.

View Article and Find Full Text PDF

Purpose: The Management of Post-transplant Infections in Collaborating Hospitals (MATCH) programme, initiated in 2011 and still ongoing, was created to 1) optimise the implementation of existing preventive strategies against viral infections in solid organ transplant (SOT) recipients and allogenic haematopoietic stem-cell transplant (HSCT) recipients and 2) advance research in the field of transplantation by collecting data from a multitude of sources.

Participants: All SOT and HSCT recipients at Copenhagen University Hospital, Rigshospitalet, are followed in MATCH. By February 2021, a total of 1192 HSCT recipients and 2039 SOT recipients have been included.

View Article and Find Full Text PDF

Introduction: Anti-Thymocyte Globulin (ATG) is a cornerstone in immune suppression for solid organ transplantation. The treatment is a delicate balance between complications arising from over-immunosuppression such as infections and cancer versus rejection stemming from under-immunosuppression. CD3 T-lymphocyte measurements are frequently employed for treatment monitoring.

View Article and Find Full Text PDF

As solid organ transplant (SOT) recipients remain at risk of severe outcomes after SARS-CoV-2 infections, vaccination continues to be an important preventive measure. In SOT recipients previously vaccinated with at least three doses of BNT162b2, we investigated humoral responses to BNT162b2 booster doses. Anti-SARS-CoV-2 receptor binding domain (RBD) immunoglobulin G (IgG) was measured using an in-house ELISA.

View Article and Find Full Text PDF
Article Synopsis
  • * A systematic approach was used, which included assessing the quality of studies, resulting in 11 out of 315 articles being analyzed, revealing variable immunity levels: tetanus (55%-86%), diphtheria (23%-75%), and pertussis (46%-82%).
  • * While SOT recipients generally have some immunity at the time of transplantation, this decreases over time, and vaccination responses can be variable; thus, personalized vaccination strategies are recommended for better protection.
View Article and Find Full Text PDF

An increasing number of sensitized patients awaiting transplantation face limited options, leading to fatalities during dialysis and higher costs. The absence of established evidence highlights the need for collaborative consensus. Donor-specific antibodies (DSA)-triggered antibody-mediated rejection (AMR) significantly contributes to kidney graft failure, especially in sensitized patients.

View Article and Find Full Text PDF

This study investigates the incidence and clearance of cervical and anal high-risk human papillomavirus (hrHPV) infection in kidney transplant recipients (KTRs) compared to immunocompetent controls. During 2016-2017, we enrolled 125 female KTRs and 125 female controls. Liquid-based cervical and anal cytology samples collected at enrollment and follow-up were tested for human papillomavirus (HPV) DNA using the CLART HPV2 test.

View Article and Find Full Text PDF
Article Synopsis
  • Primary glomerular disease (PGD) is a leading factor in end-stage kidney disease (ESKD), prompting the need for kidney replacement therapy (KRT), with the study analyzing trends in KRT incidence and patient outcomes across Europe from 2000 to 2019.
  • The study included data from nearly 70,000 patients, revealing an average incidence of 16.6 per million, with significant variations across countries, and identifying immunoglobulin A nephropathy (IgAN) and focal segmental glomerulosclerosis (FSGS) as the most common types.
  • Findings showed that while overall incidence declined initially, it stabilized after 2013, and patient survival rates varied among PGD subgroups,
View Article and Find Full Text PDF

Reliable methods to assess immune function after solid organ transplantation (SOT) are needed to guide dosing of immunosuppression. We hypothesized that toll-like receptor ligand-induced cytokine concentrations would decrease post-transplantation due to the use of immunosuppressive medication. Furthermore, we hypothesized that induced cytokine concentrations pre-transplantation would be higher in recipients with episodes of acute rejection post-transplantation due to underlying immunological dispositions.

View Article and Find Full Text PDF
Article Synopsis
  • Kidney transplant recipients face significantly higher risks of cardiovascular events and kidney failure compared to age- and sex-matched controls, based on a study using Danish administrative databases from 2005-2018.
  • In the first year post-transplant, 2.6% of recipients experienced cardiovascular issues, which increased to 8.3% by year five, while overall mortality rates were 2.2% and 10.3%.
  • The findings highlight the need for improved cardiovascular preventive strategies for kidney transplant recipients to enhance their long-term health outcomes.
View Article and Find Full Text PDF

Background: Kidney transplant recipients receive maintenance immunosuppressive therapy to avoid allograft rejection resulting in increased risk of infections and infection-related morbidity and mortality. Approximately 98% of adults are infected with varicella zoster virus, which upon reactivation causes herpes zoster. The incidence of herpes zoster is higher in kidney transplant recipients than in immunocompetent individuals, and kidney transplant recipients are at increased risk of severe herpes zoster-associated disease.

View Article and Find Full Text PDF

Introduction: Herpes virus infections are a major concern after solid organ transplantation and linked to the immune function of the recipient. We aimed to determine the incidence of positive herpes virus (cytomegalovirus (CMV), Epstein-Barr virus (EBV), herpes simplex virus type 1/2 (HSV-1/2), and varicella zoster virus (VZV)) PCR tests during the first year post-transplantation and assess whether a model including immune function pre-transplantation and three months post-transplantation could predict a subsequent positive herpes virus PCR.

Methods: All participants were preemptively screened for CMV, and EBV IgG-negative participants were screened for EBV during the first year post-transplantation.

View Article and Find Full Text PDF

Since the first kidney transplant was conducted in Denmark in 1964, almost 10,000 transplants have been performed. Graft survival has improved over the past two decades despite the increase in age and comorbidities in both donors and recipients, but organ shortage remains a challenge. The focus of this review is to describe the challenges in kidney transplant and highlight the progress achieved in solving these challenges.

View Article and Find Full Text PDF

Influenza is a common respiratory tract infection in solid organ transplant (SOT) recipients. We aimed to investigate the incidence, risk factors, and complications of influenza in a large cohort of kidney and liver transplant recipients over 10 consecutive seasons. We conducted a retrospective study, including 378 liver and 683 kidney transplant recipients who were transplanted from January 1, 2010, to October 1, 2019.

View Article and Find Full Text PDF

Introduction: We investigated humoral and T-cell responses within 12 months after first BNT162b2 vaccine in solid organ transplant (SOT) recipients and controls who had received at least three vaccine doses. Furthermore, we compared the immune response in participants with and without previous SARS-CoV-2 infection.

Methods: We included adult liver, lung, and kidney transplant recipients, and controls were selected from a parallel cohort of healthcare workers.

View Article and Find Full Text PDF

Background: Kidney transplant recipients (KTRs) have increased risk of human papillomavirus (HPV)-related cancers, including cervical and anal cancer. In this cross-sectional clinical study, we investigated the prevalence of cervical high-risk HPV (hrHPV) and low-risk (lrHPV), risk factors for cervical hrHPV infection, and the prevalence of cervical and anal hrHPV co-infection in KTRs and immunocompetent controls.

Methods: During 2016-2017, we recruited 125 female KTRs and 125 female immunocompetent controls from one dermatology department (KTRs and controls) and five nephrology departments (KTRs) in Denmark.

View Article and Find Full Text PDF

Long-term allograft survival remains a challenge in kidney transplantation. In this study, we aimed to identify biomarkers for potentially modifiable pathways involved in the outcome of kidney transplantation. We tested the hypothesis that a pre-existing systemic environment with endothelial cell activation in the recipient is associated with the outcome after kidney transplantation.

View Article and Find Full Text PDF
Article Synopsis
  • In 2009, a program called STAMP was started to help people with hard-to-match kidneys get transplants.
  • They analyzed the patients' tissues to find compatible donors and gave priority to those whose donors had matching antigens.
  • From 2009 to 2020, 278 patients were successfully transplanted, and while their 10-year survival rate was slightly lower than the general group, the program proved to be safe and adaptable for matching kidneys.
View Article and Find Full Text PDF

Background: Pneumococcal prime-boost vaccination is recommended for solid organ transplant recipients and candidates. The long-term durability of the antibody (AB) response is unknown. The same applies to a dose-dependent immune response.

View Article and Find Full Text PDF

Monitoring specific underlying causes of death in solid organ transplant (SOT) recipients is important in order to identify emerging trends and health challenges. This retrospective cohort study includes all SOT recipients transplanted at Rigshospitalet between January 1st, 2010 and December 31st, 2019. The underlying cause of death was determined using the newly developed Classification of Death Causes after Transplantation (CLASS) method.

View Article and Find Full Text PDF

Post-transplant lymphoproliferative disease (PTLD) is a well-recognized complication after transplant. This study aimed to develop and validate a risk score to predict PTLD among solid organ transplant (SOT) recipients. Poisson regression identified predictors of PTLD with the best fitting model selected for the risk score.

View Article and Find Full Text PDF

Coronavirus disease 2019 (COVID-19) caused by SARS-CoV-2 has been associated with a high risk of adverse outcomes in solid organ transplant (SOT) recipients in the pre-vaccination era. In this retrospective cohort study, we examined the incidence and severity of COVID-19 in kidney and liver transplant recipients in Denmark in the post-vaccination era, from December 27, 2020, to December 27, 2021. We included 1428 SOT recipients with 143 cases of first-positive SARS-CoV-2 PCR test.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionladuollqmrp0jger0tcesd8dtln5jmtb): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once