Non-intubated versus intubated video-assisted thoracoscopic lobectomy for lung cancer patients.

INTRODUCTION: Video-assisted thoracoscopic surgery (VATS) lobectomy has been shown to be a standard treatment for lung cancer patient due to less pain, post-operative complication and faster recovery. In recent years, Non-intubated video-assisted thoracoscopic surgery (NIVATS) is become an alternative approach for various types of thoracic surgery with a benefit on fewer complication from mechanical ventilation. Out study is aimed to study outcome compare between NIVATS lobectomy and to general anesthetic video assisted thoracoscopic surgery (GAVATS) lobectomy. METHODS: This is a retrospective cohort study conduct in Vajira hospital, Navamindradhiraj University, Bangkok, Thailand between January 2019 to September 2022.152 lung cancer patients underwent lobectomy. However, lung cancer patients whom needed to convert to GAVATS, open thoracotomy or emergency surgery were excluded from this study. In this study, we compare lung patients whom underwent NIVATS lobectomy and those whom underwent GAVATS lobectomy. These two groups are compared in term of pre-, intra- and post-operative outcomes. The inverse-probability weighting propensity score is used to identify the treatment effects of NIVATS. RESULTS: In total, there are 132 cases patients including in this analysis. There are 54 and 78 patients in the NIVATS and GAVATS respectively. Intra-operative outcome, induction and operative time are lower in the NIVATS lobectomy group (25 vs 30 min, p < 0.001 and 90 vs 120 min, p = 0.003). There is no difference regarding number of node resection, station of lymph node dissection, arrhythmia, postoperative complications, and pain visual analogue score (VAS) in both groups. Postoperative outcome, length of hospital stay is shorter in NIVATS lobectomy group (4 vs 5 days, p < 0.001). There is no patient which needed to convert from NIVATS to GAVATS. The treatment-effect analyzed by using inverse-probability weighting propensity score has shown benefits of NIVATS in terms of shorter hospital stays (coefficient -2.31, 95%CI -3.65 to -0.97, p = 0.001), and shorter chest tube duration (coefficient -1.59, 95%CI -2.93 to -0.26, p = 0.019). CONCLUSION: NIVATS lobectomy could be an alternative approach for lung cancer patients with benefits of lesser in hospital stays and duration of chest tube.

Pseudotyped zoonotic thogotoviruses exhibit broad entry range in mammalian cells.

Viruses in the thogotovirus genus of the family Orthomyxoviridae are much less well-understood than influenza viruses despite documented zoonotic transmission and association with human disease. This study therefore developed a cell-cell fusion assay and three pseudotyping tools and used them to assess envelope function and cell tropism. Envelope glycoproteins of Dhori (DHOV), Thogoto (THOV), Bourbon, and Sinu viruses were all revealed to exhibit pH-dependent triggering of membrane fusion. Lentivirus vectors were robustly pseudotyped with these glycoproteins while influenza virus vectors showed pseudotyping compatibility, albeit at lower efficiencies. Replication-competent vesicular stomatitis virus expressing DHOV or THOV glycoproteins were also successfully generated. These pseudotyped viruses mediated entry into a wide range of mammalian cell lines, including human primary cells. The promiscuousness of these viruses suggests the use of a relatively ubiquitous receptor and their entry into numerous mammalian cells emphasize their high potential as veterinary and zoonotic diseases.

Efficacy of the Enhanced Recovery After Surgery program for thoracic surgery in a developing country.

Purpose: Enhanced Recovery After Surgery (ERAS) is a strategy used to improve perioperative outcomes and reduce complications. However, data on the efficacy of ERAS in thoracic surgery in developing countries are limited. The current study aimed to validate the benefits of ERAS among patients at a single institution. Methods: This was a retrospective study of patients who underwent pulmonary resection at Vajira Hospital, Bangkok, Thailand, between 2016 and 2020. To compare outcomes, patients were divided into the pre-ERAS group (2016-2018) and the post-ERAS group (2019-2020) using propensity score matching (1:2) with the year 2019 as the cutoff for introducing ERAS protocols at our institution. Results: In total, 321 patients were included in the analysis (pre-ERAS group, n = 74; post-ERAS group, n = 247). After propensity score matching, 56 and 112 patients were classified under the pre- and post-ERAS groups, respectively. The post-ERAS group had significantly lower pain scores than the pre-ERAS group on postoperative days 1, 2, and 3, and a lower volume of intraoperative blood loss. In the multivariable analysis, the post-ERAS group had a shorter chest tube duration (mean difference = -1.62 days, 95% confidence interval = -2.65 to -0.31) and length of hospital stay (mean difference = -2.40 days, 95% confidence interval = -4.45 to -0.65) than the pre-ERAS group. Conclusion: The use of ERAS guidelines in pulmonary resection is beneficial. Although no significant differences were observed in postoperative complication rate, intensive care unit stay, and additional cost burden between the two groups, patients in the post-ERAS group had a shorter postoperative chest tube duration, shorter hospital stays, shorter operative time, lower postoperative pain score, and lower volume of intraoperative blood loss.

Case report: video-assisted thoracoscopic repair of right main bronchus transection after blunt chest injury.

Background: Traumatic tracheobronchial injury is a rare manifestation after blunt chest injury. The current standard treatment has wide spectrum from conservative treatment to open thoracotomy with repair airway regarding to severity of the disease. However, to the best of our knowledge, no one has reported airway repair in trauma using video-assisted thoracoscopic surgery (VATS) before. Hence, we describe the successful management and repair of a transected right main bronchus using VATS. Case Description: A 43-year-old male patient presented with chest tightness after a traumatic blunt chest injury; a chest computed tomography revealed multiple rib fractures and suspected right main bronchus injury with large pneumomediastinum and subcutaneous emphysema. Although the current standard treatment is to perform open thoracotomy with tracheal repair, we performed VATS repair of right main bronchus in purpose to reduce the stress from tissue trauma and minimally invasive fashion. Emergency surgery was scheduled for injury repair, and the transected right main stem bronchus and mediastinum hematoma were intraoperatively identified. The right main bronchus was repaired using polypropylene 4-0 interrupted sutures under uniportal VATS and covered with pericardial fat pad tissue. After the surgery, the patient had no air leak from chest tube drainage and recovered well. The patient was performed diagnostic bronchoscopy to confirm the patent airway at day 3 then discharged 7 days after surgery and was doing well at a 1-month follow-up. Conclusions: VATS repair is safe and feasible as an alternative approach to conventional thoracotomy approach in the treatment of traumatic tracheobronchial injury.

Perioperative outcomes of non-intubated versus intubated video-assisted thoracoscopic surgery in different thoracic procedures: a propensity score-matched analysis.

BACKGROUND: Non-intubated video-assisted thoracoscopic surgery (NIVATS) is increasingly performed in different types of thoracic procedures. Based on the anesthetic perspective, the outcomes of this method are limited. General anesthesia with intubation and controlled ventilation for video-assisted thoracoscopic surgery (IVATS) is a standard technique. The current study aimed to compare the pulmonary gas exchange between NIVATS and IVATS, with a focus on desaturation event. METHODS: This was a retrospective study conducted at Vajira Hospital. Data were collected from the hospital medical record database between January 9, 2019, and May 15, 2020. A propensity score-matched analysis was used to adjust the confounders by indications and contraindication between NIVATS and IVATS. The perioperative outcomes of VATS and NIVATS were compared by the regression analysis method. RESULTS: In total, 180 patients were included in the analysis. There were 98 and 82 patients in the NIVATS and IVATS groups, respectively. After a propensity score matching, the number of patients with similar characteristics decreased to 52 per group. None of the patients in both groups experienced desaturation. The lowest oxygen saturation of the NIVATS and IVATS groups did not significantly differ (96.5% vs. 99%, respectively; p = 0.185). The NIVATS group had a significantly higher ETCO2 peak than the IVATS group (43 vs. 36 mmHg, respectively; p < 0.001). According to the regression analysis, the NIVATS group had a significantly shorter anesthetic induction time (Mean difference (MD) = -5.135 min (95% CI = (- 8.878)- (-1.391)) and lower volume of blood loss (MD = -75.565 ml (95%CI = (- 131.08)-(- 20.65) but a higher intraoperative ETCO2 than the IVATS group (MD = 4.561 mmHg (95%CI = 1.852-7.269). Four patients in the NIVATS group required conversion to intubation due to difficulties encountered when using the surgical technique (7.7%, p = 0.041). Seven patients in the IVATS group, but none in the NIVATS group, presented with sore throat (13.5% vs. 0%, respectively; p = 0.006). Moreover, none of the patients in both groups experienced postoperative pneumonia, underwent reoperation, or died. CONCLUSIONS: The anesthetic and surgical outcomes of NIVATS were comparable to those of IVATS.

Concomitant umbilical endometriosis with catamenial pneumothorax: a case report.

Catamenial pneumothorax is an extremely rare conditions that affects women and is one of a group of diseases called extra-pelvic endometriosis. Moreover, when concomitant of extra-pelvic endometriosis occurs in the same patient is rarer to be found. A 35-year-old female presented with a 3-month history of bleeding from the umbilicus during her menstrual cycles. Right pneumothorax was incidentally detected on her abdominal X-ray already taken in primary care, and chest and abdominal computed tomography showed a 2.5-cm enhancing mass below umbilicus. As a result, the patient was diagnosed as concomitant Catamenial pneumothorax with umbilical endometriosis. Thus, she underwent video-assisted thoracoscopic surgery (VATS), diaphragmatic resection and repair using a polypropylene mesh and umbilical mass excision. Pathological analysis of the collected specimens revealed both umbilical and diaphragmatic endometriosis. Hence, she was treated with a gonadotropin-releasing hormone agonist to prevent disease recurrence. During a 6-month follow-up, she displayed no sign of umbilical bleeding or pneumothorax. This case report demonstrates the concurrent manifestation of catamenial pneumothorax and umbilical endometriosis as part of extra-pelvic endometriosis and does support the retrograde menstruation theory as the etiology of extra-pelvic endometriosis.

Effectiveness of fibrin sealant after pulmonary resection: a propensity score matching analysis.

Introduction: Alveolar air leak is a common and troublesome complication after pulmonary resection because it can lead to longer hospital stay and chest tube drainage time. Aim: As fibrin sealants are useful in the management of alveolar air leaks, we evaluated their benefit in patients undergoing pulmonary resection. Material and methods: This retrospective study included patients who underwent pulmonary resection in our hospital between 2016 and 2021. We grouped patients on the basis of whether fibrin sealant was used during surgery and compared outcomes between those with (fibrin sealant group) and without (control group) sealant use after propensity score matching (1 : 1). Results: During the study period, 375 patients underwent pulmonary resection; of these, fibrin sealant was applied at the staple line in 107 patients (fibrin sealant group), whereas sealant was not used in 268 patients (control group). After propensity score matching (1 : 1), there were 95 patients in both groups. There were no differences between the two groups in duration of chest tube drainage (3 days vs. 3 days; p = 0.753) or length of hospital stay (5 days vs. 4 days; p = 0.499). However, the sealant group showed higher cost of hospitalization (USD 4,360 vs. 3,614; p < 0.001). Multivariate analysis for identifying risk factors of persistent air leak revealed that male sex and chronic obstructive pulmonary disease were associated. Conclusions: Our results indicate that application of fibrin sealant was not effective in reducing length of hospital stay, duration of chest drains or air leakage.

Impact of acute care surgery model in aspects of patients with upper gastrointestinal hemorrhage: result from a single tertiary care center in Thailand.

BACKGROUND: Even though an acute care surgery (ACS) model has been implemented worldwide, there are still relatively few studies on its efficacy in developing countries, which often have limited capacity and resources. To evaluate ACS efficacy in a developin country, we compared mortality rates and intervention timeliness at a tertiary care center in Thailand among patients with an upper gastrointestinal hemorrhage (UGIH). METHODS: This retrospective study compared two 24-month periods between pre-ACS and post-ACS implementations from July 1, 2014, to June 30, 2018. Medical records from consecutive patients with UGIH in the surgical department of Chonburi Hospital, Thailand, were reviewed. The primary outcome was UGIH mortality rate differences between pre-ACS and post-ACS implementations. Differences in complications rate, length of hospital stay (LOS), time to esophagogastroduodenoscopy (EGD) and proportion of patients undergoing esophagogastroduodenoscopy (%EGD) in the same admission were also analyzed using unpaired t-test and Fisher's exact test. Baseline characteristic differences between the pre-ACS and post-ACS periods were controlled for in multiple linear and logistic regression models. RESULTS: A total of 421 patients were included (162 pre-ACS and 259 post-ACS). Results showed a mortality rate of 24% in post-ACS compared with 41% in pre-ACS period (p<0.001). Overall complications (38% vs 27%), LOS (6.4 days vs 5.6 days) and time to EGD (44 hours vs 25 hours) were also significantly reduced, whereas %EGD increased (70% vs 89%). After adjusting for covariates, patients in the post-ACS period had lower risk of death (OR 0.54, p=0.040), lower risk of developing respiratory complications (OR 0.52, p=0.036), higher chance of receiving EGD in the same admission (OR 2.94, p<0.001) and shortened time to EGD for 19 hours (p<0.001). DISCUSSION: Our results provide evidence that ACS can be implemented to improve patient outcomes at medical centers in developing countries with limited resources. LEVEL OF EVIDENCE: Therapeutic/care management, level IV.

Nonintubated Video-Assisted Thoracoscopic Surgery Using Local Anesthesia for Catamenial Pneumothorax.

This report describes a case of successful catamenial pneumothorax repair using local anesthesia and sedation. A female patient presented with spontaneous pneumothorax with a persistent air leak. Preoperative computed tomography did not reveal any abnormality. Surgery was planned for exploration. In the intraoperative field, a pore was incidentally found in the diaphragm. Therefore, an apical lung wedge procedure was performed; the pore was resected at the diaphragm and covered with polypropylene mesh. The operation was performed using anesthesia with intravenous agents and an oxygen mask with a reservoir bag without endotracheal intubation. The patient was discharged 4 days postoperatively and was doing well at 1-month follow-up.