Impact of sarcopenia in infants with liver transplantation for biliary atresia
Masahiro Takeda1, Seisuke Sakamoto1, Hajime Uchida1
1Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan.
Insights
Sarcopenia, a condition of muscle loss, is linked to poorer outcomes in infants undergoing liver transplantation (LT) for biliary atresia (BA). This finding suggests sarcopenia can predict post-LT complications and survival in pediatric patients.
Area of Science:
- Pediatric Hepatology
- Transplantation Surgery
- Clinical Nutrition
Background:
- Sarcopenia is a known predictor of outcomes in adult liver transplant (LT) recipients.
- Limited research exists on sarcopenia's impact on pediatric LT outcomes.
- Biliary atresia (BA) is a common indication for LT in infants.
Purpose of the Study:
- To investigate the clinical influence of sarcopenia on post-LT outcomes in infants with BA.
- To establish a definition for sarcopenia in infants using computed tomography (CT) measurements.
Main Methods:
- Defined sarcopenia in infants based on the cross-sectional area of the psoas major muscle (tPMA) compared to healthy controls (n=93).
- Assessed clinical characteristics and LT outcomes in 89 infants with BA, categorizing them into sarcopenia (n=21) and non-sarcopenia (n=68) groups.
- Utilized computed tomography (CT) for tPMA measurements.
Main Results:
- The sarcopenia group experienced significantly longer operation times and greater blood loss during LT.
- Higher incidences of portal vein stenosis (23.8% vs 4.4%) and post-operative bloodstream infections (28.6% vs 10.3%) were observed in the sarcopenia group.
- While hospital stay duration was similar, 1-year patient and graft survival rates tended to be lower in the sarcopenia group (90.5% vs 98.5% and 85.7% vs 97.1%, respectively).
Conclusions:
- Sarcopenia in infants with BA is associated with increased operative complications and potentially reduced patient and graft survival after LT.
- Sarcopenia may serve as a valuable predictive marker for post-operative outcomes in pediatric liver transplantation.
- Further research is warranted to explore interventions to mitigate sarcopenia's impact in this population.
Abstract:
While sarcopenia is an important predictor of LT outcomes in adults, few studies have examined the association of sarcopenia with LT outcomes in pediatric patients. We investigated the clinical influence of sarcopenia on the post-transplant outcomes in infants with BA. To define sarcopenia in infants, the cross-sectional area of the tPMA in 93 healthy control infants was measured by computed tomography. Sarcopenia was defined as a tPMA lower than two standard deviations below the mean of healthy control infants. Eighty-nine infants with BA with a median age at LT of 7.6 months old were enrolled. The clinical characteristics and outcomes of LT were verified in the sarcopenia group (n = 21) and non-sarcopenia group (n = 68). The sarcopenia group had a significantly longer operation time and greater blood loss during LT than the non-sarcopenia group (P = .03 and 0.02). The incidence of portal vein stenosis and post-operative bloodstream infection was also significantly higher in the sarcopenia group than in the non-sarcopenia group (23.8% vs 4.4%, P = .02 and 28.6% vs 10.3%, P = .04, respectively). The total length of hospital stay did not differ significantly. The 1-year patient and graft survival rates tended to be lower in the sarcopenia group than in the non-sarcopenia group (90.5% vs 98.5%, P = .07 and 85.7% vs 97.1%, P = .05, respectively). Sarcopenia in infants with BA may be associated with the patient survival and serve as an effective marker for post-operative outcomes of LT.
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