What type of study is this?

This is a Cohort Study study (also classified as: Mixed-Methods).

What question did this study set out to answer?

This research aims to assess the influence of monthly CMV viral load monitoring on the incidence and outcomes of cytomegalovirus disease in kidney transplant recipients.

January 14, 2026Open Access

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P-2163. Accumulative Incidence and Outcomes of Cytomegalovirus Disease in Kidney Transplant Recipients during Pre- and Post- Protocol Revision Periods in Thammasat University Hospital

TPThitima PhairochThammasat University Hospital SRSasinuch RutjanawechThammasat University

Key Points

This research aims to assess the influence of monthly CMV viral load monitoring on the incidence and outcomes of cytomegalovirus disease in kidney transplant recipients.
Conducted a mixed-method prospective and retrospective cohort study among adult kidney transplant recipients.
Categorized patients into two groups based on CMV VL monitoring: pre-protocol revision and post-revision.
Evaluated primary and secondary outcomes related to CMV disease and allograft function.
CMV disease incidence was 10.8% in non-monitored patients vs. 4.1% in monitored patients.
Asymptomatic viremia was only found in the monitoring group (8.2%).
Median CMV viral load at onset was significantly lower with monitoring (3,867 vs. 37,401 copies/mL).
Antiviral treatment duration was shorter in the monitored group (21 vs. 63 days).
No significant differences in acute rejection or graft loss were observed.

Abstract

Abstract Background Cytomegalovirus disease (CMV) remains a leading infectious complication in kidney transplant recipients (KTRs). In resource-limited settings, antiviral prophylaxis might not always be provided and routine viral load (VL) monitoring aiming for preemptive treatment is often unavailable due to financial and infrastructural constraints. We assessed the impact of implementing monthly CMV VL monitoring in intermediate-risk KTRs on CMV-related outcomes and allograft function.Figure 1Baseline characteristics Methods We conducted a mixed-method prospective and retrospective cohort study of adult KTRs at Thammasat University Hospital from January 2012 to September 2024. Patients were categorized into two groups: pre-protocol revision (no CMV VL monitoring) and post-revision (monthly CMV VL monitoring). Primary outcome was incidence of CMV disease; secondary outcomes included incidences of CMV syndrome and viremia, graft outcomes, and antiviral treatment duration.Result Results Among 114 intermediate-risk recipients (D+/R+), 65 (57%) received no CMV VL monitoring and 49 received monthly monitoring. CMV disease occurred in 10.8% of patients without monitoring versus 4.1% with monitoring (p=0.296). Asymptomatic viremia was identified only in the monitoring group (8.2%, p=0.032), allowing for early intervention. Median CMV VL at onset was significantly lower with monitoring (3,867 vs. 37,401 copies/mL, p=0.011), and antiviral treatment duration was shorter (21 vs. 63 days, p=0.073). No significant differences were observed in acute rejection or graft loss. Conclusion Although not statistically significant, CMV VL monitoring was associated with a lower incidence and earlier detection of CMV disease, lower viral burden, and shorter antiviral treatment. This study supports the feasibility and potential benefit of protocol-based CMV monitoring in resource-limited settings to improve post-transplant outcomes. Disclosures All Authors: No reported disclosures

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P-2163. Accumulative Incidence and Outcomes of Cytomegalovirus Disease in Kidney Transplant Recipients during Pre- and Post- Protocol Revision Periods in Thammasat University Hospital

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