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[Capnomediastinum after total extraperitoneal hernioplasty].

Nora Helene Wytrykowski Christensen¹, Lars Lohne Eftang², Marte Leland-Try³

¹Gastroenterologisk kirurgi, Akershus universitetssykehus, og, Institutt for klinisk medisin, Universitetet i Oslo.

Tidsskrift for Den Norske Laegeforening : Tidsskrift for Praktisk Medicin, Ny Raekke

|June 6, 2025

Summary

Capnomediastinum, a rare complication of laparoscopic total extraperitoneal repair, occurred in a patient who recovered with conservative management. This highlights potential risks of CO2 insufflation during hernia surgery.

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Area of Science:

Minimally Invasive Surgery
Surgical Complications
Gastroenterology

Background:

Laparoscopic total extraperitoneal (TEP) hernioplasty is a common outpatient procedure for groin hernias.
Capnomediastinum is a rare but potential complication of TEP repair.
CO2 insufflation during TEP can lead to gas migration and adverse symptoms.

Purpose of the Study:

To report a case of capnomediastinum following laparoscopic TEP repair.
To discuss the diagnosis and conservative management of this rare complication.

Main Methods:

A case report of a healthy male undergoing laparoscopic TEP for inguinal hernia.
Clinical presentation, diagnostic imaging (CT scan), and conservative treatment are detailed.
Patient outcome and recovery are documented.

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Main Results:

The patient developed syncope, tachypnea, fever, and leukocytosis post-operatively.
CT scan confirmed subcutaneous emphysema and gas in the mediastinum and abdominal spaces, diagnosing capnomediastinum.
Conservative management with oxygen and observation led to full recovery.

Conclusions:

Capnomediastinum is a rare complication of laparoscopic TEP repair.
Conservative management can be effective for capnomediastinum.
Awareness of this complication is important for surgeons performing TEP.