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<p>Robot-assisted thoracic surgery is increasingly used in pediatric patients; however, its application in infants weighing less than 8&#xa0;kg remains limited. We report a case of posterior mediastinal tumor resection in a 6-month-old female infant weighing 5.46&#xa0;kg. A subcostal approach using the da Vinci Single Port system was employed to minimize instrument collision within the small thoracic cavity. A 3.5-cm subcostal incision was created, and the access port was secured without intercostal rib manipulation. The operative field was maintained using CO<sub>2</sub> insufflation at 3 mmHg. A 7.0-cm cystic tumor was successfully resected. The total operative time was 132&#xa0;min. This intercostal-sparing technique may reduce intercostal nerve injury and subsequent long-term musculoskeletal complications. Subcostal single-port robotic surgery appears to be a safe and feasible minimally invasive option for infants weighing less than 8&#xa0;kg.</p>

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Subcostal single-port robot-assisted resection of a posterior mediastinal tumor in an infant

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月8日

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  • Teruhisa Kawaguchi,
  • Fumiaki Watanabe,
  • Shinji Kaneda,
  • Daisuke Ito,
  • Kohei Matsushita,
  • Koji Kawaguchi

摘要

Robot-assisted thoracic surgery is increasingly used in pediatric patients; however, its application in infants weighing less than 8 kg remains limited. We report a case of posterior mediastinal tumor resection in a 6-month-old female infant weighing 5.46 kg. A subcostal approach using the da Vinci Single Port system was employed to minimize instrument collision within the small thoracic cavity. A 3.5-cm subcostal incision was created, and the access port was secured without intercostal rib manipulation. The operative field was maintained using CO2 insufflation at 3 mmHg. A 7.0-cm cystic tumor was successfully resected. The total operative time was 132 min. This intercostal-sparing technique may reduce intercostal nerve injury and subsequent long-term musculoskeletal complications. Subcostal single-port robotic surgery appears to be a safe and feasible minimally invasive option for infants weighing less than 8 kg.