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Biochemical predictors for differentiating intraperitoneal and extraperitoneal bladder perforation
A O Ciftci1, F C Tanyel, M E Senocak
1Department of Pediatric Surgery, Hacettepe University Medical Faculty, Ankara, Turkey.
Insights
Serum biochemistry can differentiate traumatic intraperitoneal bladder perforation (IBP) from extraperitoneal bladder perforation (EBP) in children. IBP patients show higher creatinine and potassium, and lower sodium levels, aiding diagnosis when findings are unclear.
Area of Science:
- Pediatric Surgery
- Trauma Management
- Clinical Biochemistry
Background:
- Traumatic bladder perforation requires accurate differentiation between intraperitoneal (IBP) and extraperitoneal (EBP) types.
- Distinguishing IBP from EBP can be challenging with subtle clinical and radiological findings.
Purpose of the Study:
- To investigate if serum biochemistry alterations can differentiate between traumatic intraperitoneal bladder perforation (IBP) and extraperitoneal bladder perforation (EBP) in children.
- To identify specific biochemical markers indicative of IBP versus EBP.
Main Methods:
- Retrospective analysis of 32 children with traumatic bladder perforation.
- Patients categorized into IBP and EBP groups, further subdivided by presentation time (early <24h, late >24h).
- Comparison of demographic, hemodynamic, and serum biochemical parameters (urea, creatinine, sodium, potassium, chloride).
Main Results:
- No significant differences in age, sex, injury mechanism, or hemodynamics between IBP and EBP groups.
- EBP group showed normal biochemical parameters.
- IBP group exhibited significantly higher creatinine and potassium, and lower sodium levels, irrespective of presentation time.
- Elevated serum urea was noted in late-presenting IBP patients.
Conclusions:
- Serum creatinine, potassium, and sodium levels can differentiate IBP from EBP in pediatric trauma patients.
- Elevated urea suggests late presentation of IBP.
- Biochemical analysis offers a valuable tool for diagnosing traumatic bladder perforation types when other findings are equivocal.
Purpose:
A retrospective clinical study was performed to find out whether serum biochemistry alterations may serve to differentiate the traumatic bladder perforation to be either intraperitoneal or extraperitoneal.
Methods:
Thirty-two children treated for traumatic bladder perforation between 1970 and 1997, inclusive, formed the study group. Patients were divided into two groups: intraperitoneal bladder perforation (IBP) and extraperitoneal bladder perforation (EBP) groups. The groups were compared with regard to age, sex, mechanism of injury, and hemodynamic parameters (blood pressure, hematocrit) at presentation (each group was further subdivided into two subgroups according to the duration between trauma and presentation as early (duration <24 hours) and late (duration >24 hours) presentation groups). The subgroups were compared with each other with respect to serum concentrations of urea, creatinine, sodium, potassium, and chloride.
Results:
There were 21 boys and 11 girls with a mean age of 8.7+/-4.9 years. Mechanisms of injury were motor vehicle accidents (75%), falls (19%), and gunshot wounds (6%). There was no significant difference between the IBP and EBP groups with regard to age, sex, mechanism of injury and hemodynamic parameters at presentation. The biochemical parameters were found to be within normal range in the EBP group, whereas significantly higher levels of creatinine, potassium, and lower level of sodium were noted in IBP group regardless of presentation time. Significantly higher level of serum urea was recorded in a late presentation group of IBP patients.
Conclusions:
The authors emphasize that patients presenting with IBP are more likely to present with significantly higher levels of creatinine, potassium, and lower level of sodium compared with the patients with EBP regardless of presentation time. Increased level of serum urea concentration is a characteristic of IBP patients with late presentation. Biochemical alterations can be used to differentiate traumatic IBP and EBP in children with subtle physical examination and radiological findings.