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Testicular Vascularization after Pediatric Inguinal Hernia Repair: A Systematic Review and Meta-Analysis
Roxanne Eurlings1,2, Rianne E M Killaars1,2, Ruben G J Visschers2,3
1Research Institute of Nutrition and Translational Research in Metabolism (NUTRIM), Faculty of Health, Medicine and Life Sciences (FHM), Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, The Netherlands.
Insights
Pediatric inguinal hernia repair (IHR) can temporarily impair testicular blood flow, especially with open surgery. Laparoscopic IHR may be preferable in children due to preserved vascularization.
Area of Science:
- Pediatric Surgery
- Vascular Biology
- Surgical Outcomes
Background:
- Testicular vascular impairment after pediatric inguinal hernia repair (IHR) is not well understood.
- Spermatic cord manipulation during IHR may compromise testicular blood flow, potentially causing atrophy.
- Current knowledge on testicular vascular changes post-pediatric IHR requires systematic review.
Purpose of the Study:
- To review existing literature on testicular vascular impairment following pediatric inguinal hernia repair.
- To analyze the impact of different surgical approaches on testicular vascularization in children.
Main Methods:
- Systematic literature search across major databases (PubMed/Medline, Embase, Cochrane, Web of Science).
- Assessment of methodological quality using validated tools.
- Data extraction and pooled data analysis (meta-analysis) for eligible studies.
Main Results:
- Ten studies were included; six were eligible for meta-analysis.
- Open IHR showed a significant short-term decrease in testicular vascularization (1 day-1 week).
- Laparoscopic IHR did not demonstrate this short-term vascular impairment; vascular resistance normalized by long-term follow-up (1-6 months).
Conclusions:
- A transient, short-term reduction in testicular vascularity occurs after open pediatric IHR.
- Laparoscopic IHR may be clinically advantageous in children due to better preservation of testicular vascularization.
- Further comparative and long-term studies are needed to assess the impact on fertility and sperm quality.
Background:
The effect of pediatric inguinal hernia repair (IHR) on testicular vascularization remains unclear. Manipulating the spermatic cord during surgery may reduce blood flow due to edema and vasoconstriction. This can lead to testicular atrophy. The study aims to review current knowledge of testicular vascular impairment following IHR in children.
Methods:
A systematic literature search was conducted in PubMed/Medline, Embase, Cochrane Library, and Web of Science. Methodological quality was assessed using validated tools. Data were extracted, and a pooled data analysis was performed.
Results:
Ten studies were included in the systematic review. Six of these studies were eligible for meta-analysis. This revealed a significant decrease in testicular vascularization during the short-term follow-up (1 day-1 week) after IHR using the open surgical approach. This decrease was not present after laparoscopic intervention. There was no more increased resistance in the vessels at long-term follow-up (1 month-6 months), suggesting that the impaired vascularity is only temporary.
Conclusions:
There seems to be a short-term transient vascular impairment of the testis after open IHR in children. This might be of clinical relevance to prefer the laparoscopic approach for IHR in children, even though the open approach is the gold standard, in contrast to adult IHR. The impact on testicular function and sperm quality later in life remains unclear. Comparative studies of both techniques are needed to determine if there is a significant difference in testicular vascularity. Long-term studies are necessary to assess the impact of transiently reduced vascularity on sperm quality and fertility later in life.
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