Prophylactic air-extraction strategy after thoracoscopic wedge resection

A No-Chest-Drain Policy After Video-assisted Thoracoscopic Surgery Wedge Resection in Selected Patients: Our 12-Year Experience

BACKGROUND

Postoperative pleural drainage omission after video-assisted thoracoscopic surgery (VATS) for wedge resections may facilitate faster recovery. This retrospective cohort study presents our 12-year experience with omitting thoracic drainage in patients who underwent a VATS wedge resection, aiming to assess its safety and efficacy.

METHODS

Records from consecutive patients who underwent a VATS wedge resection at our hospital between February 2008 and October 2020 were retrospectively reviewed and assessed for eligibility. Patient and surgical characteristics as well as postoperative data were collected and compared between patients who received a chest drain (CD) or received no chest drain (NCD) after surgery. Univariable and multivariable analyses were performed to determine whether drain placement was associated with complications (primary outcome), and major complications requiring pleural drainage or length of hospital stay (secondary outcomes).

RESULTS

Data of 348 patients were analyzed. The drainless group (n = 98) and drain group (n = 237) were significantly different in the following baseline and surgical characteristics: sex, pulmonary function, interstitial lung disease, final pathology, number of wedges, and surgical approach. No significant differences were detected in postoperative complications (NCD 8.2%, CD 14.8%; P = .10), major complications (NCD 5.1%, CD 5.1%; P > .99), or complications requiring pleural drainage (NCD 5.1%, CD 3.8%; P = .56). The drainless group did show a significantly shorter hospitalization (NCD 2 ± 2, CD 3 ± 2 days; P < .001). Multivariable analyses revealed that drain placement was not significantly correlated with postoperative complications. In contrast, prolonged hospitalization was significantly influenced by drain placement.

CONCLUSIONS

Our findings suggest that a no-chest-drain policy after VATS wedge resections can safely fast-track rehabilitation for selected patients.

Chest tube-free video-assisted thoracoscopic surgery secured by quantitative air leak monitoring: a case series

Background

Although chest tube-omitted video-assisted thoracoscopic surgery (VATS) has been proven to be safe and efficacious, its universal application is precluded by a varying morbidity rate due to a lack of standardization. Since digital chest drainage has already shown improved accuracy and consistency in the management of postoperative air leak, we incorporated it in the strategy of intraoperative chest tube withdrawal, aiming to achieve better results.

Methods

We collected the clinical data of 114 consecutive patients who underwent elective uniportal VATS pulmonary wedge resection at the Shanghai Pulmonary Hospital from May 2021 to February 2022. Their chest tubes were withdrawn intraoperatively after an air-tightness test facilitated by digital drainage: the end flow rate had to be kept ≤30 mL/min for >15 s at the setting of -8 cmH₂O suctioning. The recordings and patterns of the air suctioning process were documented and analyzed as potential standards of chest tube withdrawal.

Results

The mean age of the patients was 49.7±11.7 years. The mean size of the nodules was 1.0±0.2 cm. The location of the nodules encompassed all lobes, and 90 (78.9%) patients received preoperative localization. The postoperative morbidity and mortality rates were 7.0% and 0%, respectively. Six patients had clinically overt pneumothorax and two patients had postoperative bleeding that required intervention. All of the patients recovered on conservative treatment except for one case of pneumothorax that required additional tube thoracostomy. The median length of postoperative stay was 2 days; and the median time of suctioning, peak flow rate, and end flow rate were 126 s, 210 mL/min, and 0 mL/min, respectively. The median numeric rating scale for pain was 1 on postoperative day (POD) 1 and 0 on the day of discharge.

Conclusions

Chest tube-free VATS assisted by digital drainage is feasible with minimal morbidity. Its strength of quantitative air leak monitoring produces important measurements for the prediction of postoperative pneumothorax and future standardization of the procedure.

A novel drainage strategy using chest tube plus pleural catheter in uniportal upper lobectomy: A randomized controlled trial

BACKGROUND

In this study we explored whether one pleural catheter plus single chest tube drainage could achieve a noninferior drainage effect when compared with the traditional two chest tubes in uniportal video-assisted thoracoscopic surgery (VATS) for an upper pulmonary lobectomy.

METHODS

Patients that underwent an upper pulmonary lobectomy from January to November 2020 were enrolled in this single-center, randomized, open-label, noninferiority trial. Prior to closure, patients were randomized to an intervention group who received an improved drainage strategy involving one pleural catheter with one chest tube (24 Fr), while traditional double chest tube drainage was applied for the control group.

RESULTS

A total of 390 patients entered the study, although 190 were excluded for changing nonuniportal surgical approaches or opting for nonlobectomy resections. Finally, 200 patients were randomized (100 in the intervention group and 100 in the control group). The baseline demographic and clinical characteristics were comparable between the groups. The incidence of pneumothorax in the intervention and control groups was similar on postoperative Day 1 (noninferiority, 10% vs. 13%, p = 0.658). In addition, there were no significant differences in secondary outcomes such as incidence of pneumothorax by Day 30, postoperative chest tube/pleural catheter removal time, amount of drainage on Day 1, total amount of drainage after operation, or postoperative hospitalization. A significantly lower pain score was observed in the intervention group (3.33 ± 0.68 vs. 3.68 ± 0.94, p = 0.003).

CONCLUSIONS

The new strategy is noninferior to double chest tube drainage after an upper pulmonary lobectomy offers superior pain control, and is recommended for an upper lobectomy by uniportal VATS.

Comparison of perioperative outcomes with or without routine chest tube drainage after video-assisted thoracoscopic pulmonary resection: A systematic review and meta-analysis

Background

In recent years, an increasing number of thoracic surgeons have attempted to apply no routine chest tube drainage (NT) strategy after thoracoscopic lung resection. However, the safety and feasibility of not routinely placing a chest tube after lung resection remain controversial. This study aimed to investigate the effect of NT strategy after thoracoscopic pulmonary resection on perioperative outcomes.

Methods

A comprehensive literature search of PubMed, Embase, and the Cochrane Library databases until 3 January 2022 was performed to identify the studies that implemented NT strategy after thoracoscopic pulmonary resection. Perioperative outcomes were extracted by 2 reviewers independently and then synthesized using a random-effects model. Risk ratio (RR) and standardized mean difference (SMD) with 95% confidence interval (CI) served as the summary statistics for meta-analysis. Subgroup analysis and sensitivity analysis were subsequently performed.

Results

A total of 12 studies with 1,381 patients were included. The meta-analysis indicated that patients in the NT group had a significantly reduced postoperative length of stay (LOS) (SMD = -0.91; 95% CI: -1.20 to -0.61; P &lt; 0.001) and pain score on postoperative day (POD) 1 (SMD = -0.95; 95% CI: -1.54 to -0.36; P = 0.002), POD 2 (SMD = -0.37; 95% CI: -0.63 to -0.11; P = 0.005), and POD 3 (SMD = -0.39; 95% CI: -0.71 to -0.06; P = 0.02). Further subgroup analysis showed that the difference of postoperative LOS became statistically insignificant in the lobectomy or segmentectomy subgroup (SMD = -0.30; 95% CI: -0.91 to 0.32; P = 0.34). Although the risk of pneumothorax was significantly higher in the NT group (RR = 1.75; 95% CI: 1.14–2.68; P = 0.01), the reintervention rates were comparable between groups (RR = 1.04; 95% CI: 0.48–2.25; P = 0.92). No significant difference was found in pleural effusion, subcutaneous emphysema, operation time, pain score on POD 7, and wound healing satisfactory (all P &gt; 0.05). The sensitivity analysis suggested that the results of the meta-analysis were stabilized.

Conclusions

This meta-analysis suggested that NT strategy is safe and feasible for selected patients scheduled for video-assisted thoracoscopic pulmonary resection.

Systematic Review Registration

https://inplasy.com/inplasy-2022-4-0026, identifier INPLASY202240026.

Risk of Pneumothorax Requiring Pleural Drainage after Drainless VATS Pulmonary Wedge Resection: A Systematic Review and Meta-Analysis

OBJECTIVE

Omitting pleural drainage after video-assisted thoracic surgery (VATS) for pulmonary wedge resections has been shown to be a safe approach to enhance recovery. However, major concerns remain regarding the risk of postoperative pneumothoraces requiring surgical interventions. Therefore, our objective was to provide conclusive evidence whether chest tube omission after VATS wedge resection is safe and does not increase the risk of pneumothoraces requiring pleural drainage.

METHODS

Five scientific databases were searched. Studies comparing patients with (CT group) and without chest tube drainage (NCT group) after VATS wedge resection were evaluated. Outcomes included radiographically diagnosed pneumothoraces and pneumothoraces requiring pleural drainage, postoperative complications, hospitalization, and pain scores.

RESULTS

Overall, 9 studies (3 randomized controlled trials) were included (N = 928). Meta-analysis showed significantly more radiographically diagnosed pneumothoraces in the NCT group (risk ratio [RR] = 2.58, 95% confidence interval [CI]: 1.56 to 4.29, P < 0.001; I² = 0%). However, no significant differences were found in postoperative pneumothoraces requiring pleural drainage (RR = 1.72, 95% CI: 0.63 to 4.74, P = 0.29; I² = 0%) or complications (RR = 0.77, 95% CI: 0.39 to 1.52, P = 0.46; I² = 0%). Furthermore, the NCT group showed significantly shorter hospitalization (mean difference = -1.26, 95% CI: -1.56 to -0.95, P < 0.001) with high heterogeneity (I² = 58%, P = 0.02), and lower pain scores on postoperative day 1 (standard mean difference [SMD] = -0.98, 95% CI: -1.71 to -0.25, P = 0.009; I² = 92%) and postoperative day 2 (SMD = -1.28, 95% CI: -2.55 to -0.01, P = 0.05; I² = 96%) compared with the CT group.

CONCLUSIONS

VATS wedge resection without routine chest tube placement is suggested as a safe and less invasive approach in selected patients that does not increase the risk of a pneumothorax requiring pleural drainage.

Randomized controlled trial of an alternative drainage strategy vs routine chest tube insertion for postoperative pain after thoracoscopic wedge resection

Background

Thoracoscopic surgery has greatly alleviated the postoperative pain of patients, but postsurgical acute and chronic pain still exists and needs to be addressed. Indwelling drainage tubes are one of the leading causes of postoperative pain after thoracic surgery. Therefore, the aim of this study was to explore the effects of alternative drainage on acute and chronic pain after video-assisted thoracoscopic surgery (VATS).

Methods

Ninety-two patients undergoing lung wedge resection were selected and randomly assigned to the conventional chest tube (CT) group and the 7-Fr central venous catheter (VC) group. Next, the numeric rating scale (NRS) and pain DETECT questionnaire were applied to evaluate the level and characteristics of postoperative pain.

Results

NRS scores of the VC group during hospitalization were significantly lower than those of the CT group 6 h after surgery, at postoperative day 1, at postoperative day 2, and at the moment of drainage tube removal. Moreover, the number of postoperative salvage analgesics (such as nonsteroidal anti-inflammatory drugs [(NSAIDs]) and postoperative hospitalization days were notably reduced in the VC group compared with the CT group. However, no significant difference was observed in terms of NRS pain scores between the two groups of patients during the follow-up for chronic pain at 3 months and 6 months.

Conclusion

In conclusion, a drainage strategy using a 7-Fr central VC can effectively relieve perioperative pain in selected patients undergoing VATS wedge resection, and this may promote the rapid recovery of such patients after surgery.

Trial registration

ClinicalTrials.gov, NCT03230019. Registered July 23, 2017.

Safety and feasibility study of uniportal video-assisted thoracoscopic pulmonary wedge resection without postoperative chest tube drainage: a retrospective propensity score-matched study

OBJECTIVES

The aim of this study was to assess the impact of postoperative chest tube drainage (CTD) on safety and postoperative recovery by comparing patients with pulmonary nodule undergoing uniportal video-assisted thoracoscopic pulmonary wedge resection with and without postoperative CTD.

METHODS

We retrospectively analysed the data of patients who underwent video-assisted thoracoscopic pulmonary wedge resection for pulmonary nodule at our hospital between 2018 and 2022. In cases where a 12-Fr chest tube was used following the procedure, the tube was not usually removed until the day after surgery. Therefore, the eligible patients were categorized into the drainage tube or the no-drainage tube group according to the use of postoperative CTD. Propensity score matching at a ratio of 1:1 was performed using clinicopathologic and demographic variables. The highest postoperative pain score, postoperative complication rate, postoperative length of stay and hospitalization costs were compared between the 2 groups.

RESULTS

A total of 275 eligible patients, including 150 and 125 patients in the drainage tube and no-drainage tube groups, respectively, were included in the study. After propensity score matching, there were 102 patients in each group. The postoperative complication rate during hospitalization and at 1 week and 1 month after discharge were not significantly different between the 2 groups (P > 0.05 for all). The highest postoperative pain score was significantly lower in the no-drainage tube group than in the drainage tube group [2.02 (standard deviation: 0.81) days vs 2.31 (standard deviation: 0.76) days, P = 0.008]. The postoperative length of stay was significantly shorter in the no-drainage tube group than in the drainage tube group {3.00 [interquartile ranges (IQRs): 2.00-4.00] days vs 2.00 (IQRs: 1.00-3.00) days, P < 0.001}. Similarly, the total hospitalization costs were significantly lower in the no-drainage tube group than in the drainage tube group [33283.74 (IQRs: 27098.61-46718.56) yuan vs 26598.67 (IQRs: 22965.14-29933.67) yuan, P < 0.001].

CONCLUSIONS

Omission of postoperative CTD was safe and feasible in patients with pulmonary nodule undergoing wedge resection. The no-postoperative-drainage policy can substantially shorten the length of hospital stay and reduce the postoperative pain and hospitalization costs without increasing the risk of postoperative complications.

Drainless Thoracoscopic Lobectomy for Lung Cancer

OBJECTIVES: Drainless video-assisted thoracoscopic (VATS) wedge resection has been demonstrated as feasible in treating various lung diseases. However, it remains unknown whether this surgical technique can be effectively applied to lobectomy. In the current study, we evaluated the perioperative outcome of drainless, minimally invasive lobectomy in patients with lung cancer. METHODS: A total of 26 lung cancer patients who received surgery-performed pulmonary lobectomy were enrolled. The perioperative outcomes were analyzed based on a propensity score matching a comparison with those who had chest drainage. RESULTS: No major surgical morbidity and mortality was noted during the perioperative period. The mean of postoperative hospital stay was 5.08 ± 2.48 days. There was no significant difference in postoperative hospital stay between the two groups of patients. However, the presence of significant postoperative pain (VAS score > 30) on the first day after surgery was less in the drainless group (34.6% vs. 3.8%; p = 0.005). CONCLUSIONS: Our results demonstrated that drainless, minimally invasive lobectomy for selected lung cancer patients is feasible. Further evaluation of its impact on short- and long-term surgical outcomes is required in the future.

Watershed analysis of the target pulmonary artery for real-time localization of non-palpable pulmonary nodules

Background

Some pulmonary nodules are not suitable for computed tomography-guided percutaneous localization. This study aimed to investigate the feasibility and safety of real-time localization for these non-palpable pulmonary nodules using watershed analysis of the target pulmonary artery during thoracoscopic wedge resection.

Methods

Watershed analysis is a novel technique that can be used to create a specific area on the lung surface for nodule localization. This analysis is performed by temporarily blocking the target pulmonary artery and using indocyanine green fluorescence during surgery. In our study, the surgery was simulated and evaluated preoperatively using a high-precision three-dimensional reconstruction model obtained by multidetector spiral computed tomography. The lung was observed using an infrared thoracoscopy system after an intravenous injection of indocyanine green (2.5 mg/mL), and the white-to-blue transitional zone was marked using electrocautery, after which a wedge resection was performed.

Results

A total of 25 out of 26 patients underwent successful wedge resection. The mean tumor size and depth based on computed tomography scans were 13.2±6.4 and 12.2±7.8 mm, respectively. The mean operation duration was 142.6±52.8 min. The mean bleeding volume during surgery was 12.9±9.7 mL. The mean drainage tube indwelling time was 35.6±20.0 h, and the median length of postoperative stay was 3 days (range, 2-6 days).

Conclusions

Our experience showed that the watershed analysis of the target pulmonary artery for nodule localization was safe and feasible. It may become an effective and attractive alternative method for localizing non-palpable pulmonary nodules in selected patients undergoing thoracoscopic wedge resection.

Tubeless uniportal thoracoscopic wedge resection with modified air leak test and chest tube drainage

Background

To investigate whether tubeless uniportal thoracoscopic wedge resection with modified air leak test and chest tube drainage has better short-term outcomes than non-intubated approach with chest tube drainage.

Methods

Data were collected retrospectively from January 2017 and December 2019. Tubeless group included 55 patients with pulmonary nodules underwent tubeless uniportal thoracoscopic wedge resection, 211 patients underwent non-intubated uniportal thoracoscopic wedge resection with chest tube drainage were included in drainage group. Peri-operative outcomes between two groups were compared.

Results

After 1:1 matching, 110 patients remained for analysis, baseline demographic and clinical variables were comparable between the two groups. Mean incision size was 3 cm in both group. Mean operative time was 59.3 min in tubeless group and 52.8 min in drainage group. The detectable mean lowest SpO₂ and mean peak EtCO₂ during operation was acceptable in both groups. Conversion to intubated ventilation or thoracotomy was not required. No patient failed the air leak test and did not undergo a tubeless procedure. Mean postoperative hospital stay was 1.5 days in tubeless group and 2.5 days in drainage group. Residual pneumothorax or subcutaneous emphysema was not frequent and mild in tubeless group. Side effects were rare and mild, including cough and hemoptysis. No re-intervention or readmission occurred. The postoperative VAS score was significantly lower in tubeless group.

Conclusions

Tubeless uniportal thoracoscopic wedge resection with modified air leak test and chest tube drainage is feasible and safe for selected patients with peripheral pulmonary nodules, it might reduce post-operation pain and lead to faster recovery.