Management of post lobectomy subcutaneous emphysema; a case report with literature review

Risk factors for extensive subcutaneous emphysema after pulmonary resection by video-assisted thoracoscopic surgery: a case-control study

Introduction

Extensive subcutaneous emphysema may lead to a significantly prolonged hospital stay, cosmetic problems, and even death without timely treatment. However, the risk factors for it have been poorly studied.

Aim

To clarify the prevalence and risk factors of extensive subcutaneous emphysema after pulmonary resection by video-assisted thoracoscopic surgery.

Material and methods

This is a retrospective matched case-control study. A sample of 86 cases and 258 matched controls was recruited from among 4339 patients admitted to the thoracic surgery department from October 2018 to October 2020 in a tertiary teaching hospital in China. Cases were patients who were diagnosed with extensive subcutaneous emphysema after pulmonary resection through video-assisted thoracoscopic surgery. Controls were matched in a ratio of 3 : 1 to the cases based on age and sex.

Results

In this study, the incidence rate of extensive subcutaneous emphysema was 2.05%, and approximately 75.58% of the cases occurred within 1 to 4 days postoperatively. In univariate analysis, patients with extensive subcutaneous emphysema were also likely to have a significant lower body mass index, worse pulmonary function, greater intraoperative blood loss, longer time of operation, history of lung surgery, wider scope of surgery, and more extensive pleural adhesion. The results of multivariate logistic regression showed that segmentectomy (OR = 3.130, 95% CI: 1.055-9.283, p = 0.040), lobectomy (OR = 4.487, 95% CI: 1.704-11.812, p = 0.002), and extensive pleural adhesion (OR = 4.514, 95% CI: 1.763-11.556, p = 0.002) were independent risk factors.

Conclusions

Segmentectomy, lobectomy, and extensive pleural adhesions were identified as independent risk factors for extensive subcutaneous emphysema after video-assisted thoracoscopic surgery.

A study of subcutaneous emphysema, factors contributing to its development, resolution and management with different modalities

Subcutaneous emphysema (SE) is defined as an escape of air in subcutaneous tissue. It is one of the most common complications after intercostal chest tube drainage. SE is usually benign, requiring no specific treatment, but extensive SE can be uncomfortable and alarming for the patient. It can rarely lead to airway compromise, respiratory failure, and death. Factors leading to its development, following chest tube insertion and methods of management, have not been extensively studied and published. This was an analytical study done over 2 years on indoor patients who developed SE. These cases were managed using four different modalities and were analyzed for various factors contributing to the development, severity, and resolution of SE. The results of this study highlight that the cases of hydropneumothorax and secondary pneumothorax were significantly more predisposed to the development of severe SE (following intercostal chest tube insertion) and large air leaks as compared to others. A larger air leak develops higher grades of SE. The average time for resolution of SE was similar among the different modalities of management compared in the study.

Efficacy of multi-groove silicone drains in single-port video-assisted thoracoscopic lung cancer surgery and their effect on C-reactive protein: a single-center experience

Background

The purpose of this study was to systematically evaluate the effectiveness and safety of a multi-groove silicone drain in single-port video-assisted thoracoscopic lung cancer surgery and its effect on postoperative serum C-reactive protein (CRP) levels.

Methods

We retrospectively analyzed 122 surgical cases who underwent standard lobectomy and lymph node dissection for primary lung cancer between May 2020 and December 2020. A total of 62 patients received 19-F multi-groove silicone drains (experimental group) and 60 patients received 24-F conventional chest drains (control group). According to the different thoracic drainage approaches, the clinical efficacy in the perioperative period, postoperative complications, and postoperative serum CRP levels were compared between the 2 groups.

Results

In this study, thoracic drainage volume, the average visual analog scale (VAS) pain scores in incisions, the rate of primary healing at the site of incisions, and the pulmonary infection rate in the multi-groove silicone drain group were significantly lower than those in the conventional chest drain group (P<0.05), but there was no significant difference in the average hospital stay time, arrhythmia rates, and chest tube removal time between the 2 groups. At postoperative day 1, the levels of serum CRP in the 2 groups were further increased (P>0.05), and the comparison between the 2 groups showed that the levels of serum CRP in the multi-groove silicone drain group at 72 h after the operation were significantly lower than those in the conventional drain group (P<0.05).

Conclusions

Our results showed that a multi-groove silicone drain is feasible and relatively safe in single-port video-assisted thoracoscopic lung cancer surgery for most patients. However we should take cautious in those patients with higher susceptibility of postoperative active bleeding. In patients undergoing lung cancer surgery in the clinical treatment process, the use of a multi-groove silicone drain can improve the quality of life of patients. Due to a small number of included studies and unclear bias, the above results should be verified by high-quality, large-sample randomized controlled studies.

Keywords

Video-assisted thoracoscopic lung cancer surgery; multi-groove silicone drains; conventional chest drains