Outcomes of Non-intubated Versus Intubated Thoracoscopic Surgery for Primary Spontaneous Pneumothorax

BACKGROUND

This study aimed to compare the outcomes of non-intubated video-assisted thoracic surgery (N-VATS) and intubated video-assisted thoracic surgery (I-VATS) for primary spontaneous pneumothorax (PSP).

MATERIALS AND METHODS

We retrospectively analyzed 120 consecutive patients who underwent VATS for PSP. The patients were divided into N-VATS and I-VATS groups. Demographics, clinical characteristics, postoperative results, pain scores, follow-up results, and management were evaluated and compared between the groups. Local anesthesia and deep sedation (ketamine 2 mg/kg IV and propofol 2 mg/kg IV slow infusion) were administered under spontaneous ventilation in the N-VATS group.

RESULTS

The groups did not differ significantly in terms of age, sex, American Society of Anesthesiology score, pneumothorax side, or smoking history ( P >0.05). The mean operation time, anesthesia time, oral intake opening time, and mobilization time were significantly shorter in the N-VATS group (26.04±4.61 vs. 48.26±7.82 min, 42.14±6.40 vs. 98.16±12.4 min, 2.1±0.4 vs. 8.4±1.2 h, and 4.2±0.9 vs. 2.6±1.4 between N-VATS and I-VATS, respectively; P <0.05). The surgical outcomes did not differ in terms of minor complications (12%-13%) and recurrence rates (5.1%-6.4%) during a mean follow-up period of 88.4±10.2 mo. No cases of conversion to open surgery or mortality were observed. General anesthesia and intubation were not required for any patient in the N-VATS group.

CONCLUSIONS

Our results revealed no differences in minor complications or recurrence rates between groups. However, the N-VATS group had significantly shorter operation, anesthesia, oral intake opening, and mobilization times. The most important advantage of N-VATS for PSP is its fast recovery while avoiding the risks of general anesthesia and intubation. Further prospective studies with larger sample sizes are warranted.

Nonintubated versus intubated thoracoscopic bullectomy for primary spontaneous pneumothorax: A multicenter propensity-matched analysis

BACKGROUND

We aimed at comparing in a multicenter propensity-matched analysis, results of nonintubated versus intubated video-assisted thoracic surgery (VATS) bullectomy/blebectomy for primary spontaneous pneumothorax (PSP).

METHODS

Eleven Institutions participated in the study. A total of 208 patients underwent VATS bullectomy by intubated (IVATS) (N = 138) or nonintubated (NIVATS) (N = 70) anesthesia during 60 months. After propensity matching, 70 pairs of patients were compared. Anesthesia in NIVATS included intercostal (N = 61), paravertebral (N = 5) or thoracic epidural (N = 4) block and sedation with (N = 24) or without (N = 46) laryngeal mask under spontaneous ventilation. In the IVATS group, all patients underwent double-lumen-intubation and mechanical ventilation. Primary outcomes were morbidity and recurrence rates.

RESULTS

There was no difference in age (26.7 ± 8 vs 27.4 ± 9 years), body mass index (19.7 ± 2.6 vs 20.6 ± 2.5), and American Society of Anesthesiology score (2 vs 2). Main results show no difference both in morbidity (11.4% vs 12.8%; p = 0.79) and recurrence free rates (92.3% vs 91.4%; p = 0.49) between NIVATS and IVATS, respectively, whereas a difference favoring the NIVATS group was found in anesthesia time (p < 0.0001) and operative time (p < 0.0001), drainage time (p = 0.001), and hospital stay (p < 0.0001). There was no conversion to thoracotomy and no hospital mortality. One patient in the NIVATS group needed reoperation due to chest wall bleeding.

CONCLUSION

Results of this multicenter propensity-matched study have shown no intergroup difference in morbidity and recurrence rates whereas shorter operation room time and hospital stay favored the NIVATS group, suggesting a potential increase in the role of NIVATS in surgical management of PSP. Further prospective studies are warranted.

New options for pneumothorax management

Introduction: Pneumothorax is defined as the presence of air in the pleural space. Spontaneous pneumothorax, occurring without antecedent traumatic or iatrogenic cause, is classified as primary or secondary. There are substantial inconsistencies in international guidelines for the treatment of pneumothorax. Moreover, many geographical variations exist in daily clinical practice.Areas covered: In this article, we focus on novel treatment modalities for this significant health problem in young adults.Expert opinion: In part, these discrepancies have been caused by the lack of high-quality trials or evidence. Currently, the pathophysiological mechanisms underlying pneumothorax are better understood and have implications for clinical management. Studies have demonstrated that the judicious use of pleurodesis can decrease its rate of recurrence, both in surgical and nonsurgical patients.