article · HEALTH SCIENCES AND DISEASE
Partial nephrectomy is the favoured surgical treatment for localised renal tumours because it preserves kidney tissue while matching the cancer control achieved by complete kidney removal. However, loss of kidney function following surgery remains a significant concern, especially in patients with low baseline function. In this study, kidney filtration rates were tracked across a twelve-month postoperative period using mixed-effects statistical modelling to examine trends and assess influencing factors. The results showed a non-linear trajectory of kidney function, starting with an immediate postoperative reduction due to tissue loss and blood flow restriction, followed by partial recovery over the initial months and eventual stabilisation by one year. Both higher preoperative filtration rates and shorter surgical ischaemia durations were significant predictors of better long-term kidney function preservation.
Partial kidney removal helps preserve vital organ function, but post-surgical kidney damage remains a risk. Demonstrating that functional recovery stabilises by twelve months, and that keeping surgical ischaemia times short protects organ performance, gives clinicians actionable evidence. This helps healthcare teams refine surgical methods, tailor patient follow-up schedules, and better counsel individuals with limited pre-existing renal reserves.
The abstract describes observational clinical research rather than a direct commercial product. The findings could potentially inform the development of clinical decision-support algorithms or surgical risk-stratification tools used by urologists to manage ischaemia times and post-surgical monitoring. However, any translation into software applications or standard clinical protocols remains at an early research stage.
AI-generated from the published abstract. Always read the original work before citing.
ABSTRACTIntroduction. Partial nephrectomy (PN) is the preferred surgical approach for localized renal masses due to its nephron-sparing advantage and comparable oncologic outcomes to radical nephrectomy. However, postoperative decline in estimated glomerular filtration rate (eGFR) remains a clinically significant concern, particularly in patients with limited baseline renal reserve. Understanding the longitudinal pattern of renal functional change after PN is essential for optimizing perioperative strategies and patient counseling. The objective was to characterize the trajectory of renal function during the first 12 months following partial nephrectomy and to identify factors associated with postoperative eGFR decline. Method. This study employed a longitudinal design with repeated eGFR measurements obtained preoperatively and at scheduled postoperative intervals up to 12 months. Renal function was assessed using standard eGFR equations. A mixed-effects modeling approach was applied to evaluate temporal trends and account for within-patient variability. Covariates including baseline eGFR, ischemia duration, tumor complexity, and demographic characteristics were analyzed as potential predictors of functional outcomes. Results. Renal function demonstrated an immediate postoperative decline consistent with ischemic and parenchymal loss effects, followed by partial recovery within the early postoperative months and subsequent stabilization by 12 months. Baseline renal function and ischemia duration were significant predictors of long-term eGFR preservation. Patients with higher preoperative eGFR and shorter ischemia times exhibited more favorable recovery trajectories. Conclusion. Renal function after partial nephrectomy follows a nonlinear recovery pattern characterized by early decline, partial compensation, and stabilization. Longitudinal modeling provides a more comprehensive understanding of postoperative renal adaptation and may inform surgical planning and follow-up strategies.RÉSUMÉ Introduction. La néphrectomie partielle (NP) est la chirurgie de référence pour les masses rénales localisées en raison de la préservation néphronique qu'elle offre et de ses résultats oncologiques comparables à la néphrectomie totale, bien que le déclin postopératoire du débit de filtration glomérulaire estimé (DFGe) reste préoccupant chez les patients à faible réserve rénale, rendant essentielle la caractérisation de la trajectoire fonctionnelle à long terme. Méthode. Cette étude longitudinale avec mesures répétées du DFGe jusqu'à 12 mois postopératoires a utilisé un modèle à effets mixtes pour évaluer les tendances temporelles et la variabilité intra-individuelle, tout en analysant l'impact du DFGe initial, de la durée d'ischémie, de la complexité tumorale et des données démographiques. Résultats. La fonction rénale a montré un déclin postopératoire immédiat lié aux effets de l'ischémie et de la perte parenchymateuse, suivi d'une récupération partielle dans les premiers mois postopératoires puis d'une stabilisation à 12 mois. La fonction rénale initiale et la durée d'ischémie étaient des facteurs prédictifs significatifs de la préservation du DFGe à long terme. Les patients présentant un DFGe préopératoire plus élevé et des temps d'ischémie plus courts ont affiché des trajectoires de récupération plus favorables. Conclusion. La récupération rénale après NP suit un profil non linéaire (déclin initial, compensation partielle et stabilisation), dont la modélisation longitudinale permet d'optimiser la planification chirurgicale et la stratégie de suivi.
This page summarises published work. The authoritative version sits with the publisher.
DOI: 10.67260/hsd.v27i9.7857
Is something wrong with this record? Report it or request removal.
Discussion
Have you built on this work, tried to replicate it, or seen it applied in practice? Share what you know. Verified researchers and MARATTO™ domain experts can open a discussion, and any member can reply. Contributions are reviewed before they appear.
No discussion yet. Open the first thread.
New to MARATTO™? Create a free account.
