Videothoracoscopic surgical approach for spontaneous pneumothorax: review of the pertinent literature

Postoperative pain in treatment of spontaneous pneumothorax with limited two-port thoracoscopy

Objectives: To investigate effects of the limited two-port video assisted thoracic surgery on treatment of spontaneous pneumothorax.

Methods: A retrospective analysis of 96 patients with spontaneous pneumothorax who underwent video assisted thoracic surgery was conducted in the present study, in which 23 cases underwent the limited two-port video assisted thoracic surgery while 73 cases treated with the standard three-port video assisted thoracic surgery or the standard two-port video assisted thoracic surgery. The mean operation time, mean intraoperative blood loss and average postoperative hospital stay, average postoperative chest tube duration and postoperative pain rating were analyzed.

Results: There was no statistical difference existed in the mean operation time, mean intraoperative blood loss, average postoperative hospital stay, average postoperative chest tube duration between the two groups (P>0.05). However, the postoperative pain in the limited two-port video assisted thoracic surgery group was significantly lower than that of the traditional video assisted thoracic surgery group.

Conclusion: Compared with that of the standard three-port video assisted thoracic surgery or the standard two- port video assisted thoracic surgery, there is better cosmetic effect, and lower grade postoperative pain in the limited two-port video assisted thoracic surgery.

Can preoperative imaging studies accurately predict the occurrence of bullae or blebs? Correlation between preoperative radiological and intraoperative findings

BACKGROUND

Radiological findings of patients with primary spontaneous pneumothorax (PSP) undergoing surgery have not been well analyzed. The aim of this study was to evaluate the accuracy of imaging studies for predicting the presence of emphysema-like changes (ELCs) detectable during surgery.

METHODS

Ninety-three PSP patients who underwent surgery from September 2005 to October 2009 were included in the study. We analyzed preoperative chest radiographic and computed tomographic (CT) findings, and compared the findings with intraoperative detection of ELCs. Chest radiographic findings were analyzed by classifying the PSP size into three categories: small, moderate, and complete.

RESULTS

Seventy-six of the 93 patients (82%) had ELCs detected during surgery. The size of the PSP on a radiograph was significantly correlated with the presence of ELCs (p=0.0121). Preoperative CT revealed 64 of the 76 ELCs (sensitivity, 84%; specificity, 100%; accuracy, 87%). Twenty-nine patients without ELCs detected by preoperative CT were analyzed separately. In this group, a larger PSP size also increased the likelihood of ELCs being present (p=0.0049). Seven patients (8%) experienced a recurrence after surgery. No factor could significantly predict recurrence.

CONCLUSIONS

Chest CT analysis alone was associated with a false-negative rate of about 15% for ELCs. Combining the analysis of chest radiographic and CT findings could improve sensitivity.

Spontaneous Pneumothorax Recurrence and Surgery

Spontaneous pneumothorax that occurs in patients with no underlying lung disease is termed primary spontaneous pneumothorax (PSP). Recurrence of pneumothorax is usually seen without surgical procedures at any time. The aim of this study was to determine the recurrence time and rate of PSP after the first episode. A total of 82 PSP patients who had been treated in a thoracic surgery clinic between March 2011 and August 2012 were studied retrospectively. Video-assisted thoracoscopic surgery (VATS) was performed in 14 of 82 patients because of prolonged air leakage. These patients were excluded from the study to determine the recurrence period of PSP in our cases. Simple endotracheal intubation with low-volume high-frequency ventilation and three-port VATS technique were applied. Bullae or blebs were excised using an endoscopic linear stapler. Apical pleurectomy was performed in all of the patients. There were no cases in which VATS was converted to open thoracotomy. Recurrence of PSP was seen in 18 (26.47 %) of 68 patients. We found 26.47 % recurrence at the first 7 months, of which 94.4 % occurred at the first 6 months. About 77.77 % of these recurrences occurred at 3 months after discharge from hospital. Recurrence after the first episode of PSP is a common problem within the first 6 months. The thoracic surgeon should give knowledge about it to all patients. With the greater use of VATS for thoracic pathologies, it could be performed for the first period of pneumothorax in the future.

Thoracoscopic simultaneous bilateral bullectomy through apicoposterior transmediastinal access for bilateral spontaneous pneumothorax: a challenging approach

BACKGROUND

Video-assisted thoracoscopic surgery (VATS) through transmediastinal access (TMA) for contralateral thoracic cavity is an operative alternative for bilateral pulmonary lesions. Recently, we introduced a novel method of apicoposterior TMA to perform simultaneous VATS bilateral bullectomy (BB) for bilateral spontaneous pneumothorax (BPTX). We retrospectively analyzed ten patients on whom this procedure was performed and evaluated the effectiveness of this approach.

METHODS

From April 2006 to May 2010, ten patients underwent simultaneous BB through this approach. Mean postoperative follow-up was 33.2 months. All patients were young males (age range = 15-20 years) and eight patients had BPTX that developed simultaneously. Apical blebs or bullae were carefully identified using multidirectional high-resonance computed tomography (HRCT). VATS right bullectomy was done first. The left thorax was reached by going through the apicoposterior mediastinum between the esophagus and vertebral bodies, and then left procedure was performed through this access.

RESULTS

All ten patients successfully underwent VATS BB through TMA without intraoperative complications. One patient developed prolonged air leakage for 6 days on the right side. During the follow-up period, two patients developed left PTX recurrence; one was treated with a chest tube at 13 months, and another underwent a left VATS reoperation at 20 months postoperatively because of new bulla formation around the previous stapling line.

CONCLUSIONS

A VATS apicoposterior transmediastinal approach is relatively safe and technically reliable for highly selective BPTX patients who have localized blebs or bullae on the left apical lung. Pleural reinforcement procedures may also be required for the prevention of postoperative recurrence.

[Treatment specifics for spontaneous pneumothorax in flight personnel]

Spontaneous pneumothorax is one cause of aeronautical unfitness in flight personnel, because of the risk of recurrence in flight, making it an issue of flight safety. Specific treatment is required for fighter pilots, pilots flying single-pilot and pilots in professional training: surgical synthesis via video-thoracoscopy is obligatory from the first episode. Considering the exposure to an accumulation of aeronautical factors that are likely to encourage pneumothorax recurrence in flight, it is apical pleurectomy together with abrasion of the remaining pleura and resection of bullae/blebs that is required for fighter pilots to allow them to recover aeronautical fitness unrestrictedly. For all other categories of flight personnel, treatment is no different from that of the common patient. Knowledge of these treatment specifics is essential, to avoid unnecessary systematic surgical indication for all flight personnel, or jeopardise professional fitness in some of them due to inappropriate treatment.