A prospective study comparing three-port video-assisted thoracoscopy with the single-incision laparoscopic surgery (SILS) port and instruments for the video thoracoscopic approach: a pilot study.

BACKGROUND: Single-incision laparoscopic surgery (SILS) has proved its advantages in several procedures, mainly a shorter hospital stay, improved aesthetic results, and less postoperative pain. The authors have used this approach for several thoracic surgical procedures. METHODS: This prospective study compared 20 cases between standard three-port video-assisted thoracic surgery (VATS) and the single-incision approach using a standard abdominal SILS system. In both groups, postsurgical analgesia was provided with 15 ml of bupivacaine 0.5% at 3 h intervals via a paravertebral catheter. The hospital length of stay and chest drain duration (in hours) were recorded as well as postoperative pain using an analogic visual pain scale (AVPS). A telephone survey was conducted for all the outpatients. The Mann-Whitney U test was used for statistical analysis. RESULTS: This study of 20 procedures included 11 lung biopsies, 6 pneumothorax procedures, 2 mediastinic cystectomies, and 1 catamenial pneumothorax procedure. No statistically significant difference was reported in hospital length of stay or chest drain duration between the two groups. However, postoperative pain at 24 h was significantly less in the SILS group (AVPS, 4.40) than in the VATS group (AVPS, 6.20) (p = 0.035). The SILS group reported two minor surgical wound complications and one catamenial pneumothorax recurrence that did not require drainage. The VATS group reported one case of skin rash with no identifiable cause. CONCLUSIONS: The use of the SILS port in thoracic surgery results in less postoperative pain. This is related to the port's protective effect over the periostium and the intercostal nerve, relieving them of direct contact with surgical instruments. However, the findings showed a higher incidence of surgical wound complications with the SILS port, which can be attributed to increased pressure on the skin and soft tissues surrounding the port and to the fact that this same incision was used for chest drain placement, thus increasing the risk for complications.

[Locating pulmonary nodules with a computed axial tomography-guided harpoon prior to videothoracoscopic resection. Experience with 52 cases]. / Localización de nódulos pulmonares con arpón guiado por tomografía axial computarizada previa a la resección videotoracoscópica. Experiencia en 52 casos.

OBJECTIVE: Videothoracoscopic (VTC) resection of peripheral pulmonary nodules (PN) occasionally requires performing a mini-thoracotomy to locate them using palpation. The aim of this study is to evaluate the usefulness of inserting a CT-guided harpoon as a method for locating PN prior to surgery. MATERIAL AND METHODS: A study was conducted on a total of 52 patients who were scheduled for locating 55 PN prior to surgery by inserting a CT-guided harpoon, from November 2004 to January 2011. RESULTS: Of the 52 patients, of whom 35 had a history of cancer, 31 were male and 21 were female, with ages between 28 and 84 years (mean: 62.2 years) with a PN <20mm (mean: 9.57mm). A total of 55 harpoons were inserted (3 patients had 2 simultaneous harpoons). Using the VTC it was observed that 52 harpoons were correctly anchored to the PN. There were no complications. In the group of 35 patients with an oncology history, the nodules were malignant in 26 cases (74.3%), and there were 17 (70.6%) with malignant PN in those with no oncology history. The hospital stay varied between 4 and 72h, with 19 patients (36.5%) included in a one-day surgery program. CONCLUSIONS: The preoperative identification of peripheral pulmonary nodules enables them to be removed directly with VTC. The insertion of a CT-guided harpoon in the PN is a safe and effective procedure that can be performed in a one-day surgery program.

[The benefits of digital air leak assessment after pulmonary resection: prospective and comparative study]. / Beneficios del uso de dispositivos digitales para medir la fuga aérea después de una resección pulmonar: estudio prospectivo y comparativo.

INTRODUCTION: Persistent air leaks represent the most common pulmonary complication after elective lung resection. Since there are insufficient data in the literature regarding variability in the withdrawal of postoperative pleural drainages, we have designed a prospective, consecutive and comparative study to evaluate if the use of digital devices (Thopaz and DigiVent) to measure postoperative air leak compared to a Pleur-Evac varies on deciding when to withdraw chest tubes after lung resection. METHODS: A prospective, consecutive and comparative trial was conducted in 75 patients who underwent elective pulmonary resection for non small cell lung cancer. This study compared two digitals devices with the current analogue version in 75 patients. The digital and analogue groups had 26, 24, and 25 patients, respectively. RESULTS: Clinical population data were not statistically different between the groups. The withdrawal of the chest tube was Thopaz, 2.4 days; Digivent, 3.3 days and PleurEvac, 4.5 days. Patients and nurses were subjectively more comfortable with digital devices. Surgeons obtained more objective information with digital devices. The safety mechanism of the Thopaz was also subjectively better, and one patient was discharged home without complications after one week. CONCLUSIONS: The digital and continuous measurement of air leak instead of the currently used static analogue systems reduced the chest tube withdrawal and hospital stay by more accurately and reproducibly measuring air leak. Intrapleural pressure curves from the Digivent may also help predict the optimal chest tube setting for each patient. The Thopaz alarm mechanism is very useful to prevent deficiencies in the mechanism and do not required wall suction.

Outpatient thoracic surgery.

In summary, from the different alternatives to conventional hospitalization developed in the last decades, outpatient surgery has been the one with the greatest growth. However, only few studies have been reported on thoracic surgery and there is still great potential for an increase in outpatient thoracic surgery. The aim of this article has been to evaluate the clinical aspects, results, and economical impact of an outpatient thoracic surgery program (OTSP). Video-assisted mediastinoscopy, lung biopsy, and bilateral thoracic sympathectomy can be accomplished safely in a significant percentage of cases as ambulatory patients. The impact of the economical benefit of outpatient thoracic surgical program over the conventional hospitalization depends on the previous department's policy on hospital stay. Further experience is needed to increase the substitution index and expand the OTSP to other procedures.

[The benefits of digital chest drainage in pleural decortication in thoracic empyema. Prospective, randomized, control trial]. / Beneficios del drenaje torácico digital en pleurodecorticación por empiema. Estudio prospectivo, comparativo aleatorizado.

BACKGROUND: Prolonged air leak after pleural decortication is one of the most frequent complications. OBJECTIVE: The aim of this study is to compare the effects of prolonged air leak between the digital chest drainage (DCD) system and the classic drainage system in patients with empyema class IIB or III (American Thoracic Society classification) in pleural decortication patients. MATERIAL AND METHODS: A total of 37 patients were enrolled in a prospective randomized control trial over one year, consisting of 2blinded groups, comparing prolonged air leak as a main outcome, the number of days until removal of chest drain, length of hospital stay and complications as secondary outcomes. RESULTS: The percentage of prolonged air leak was 11% in the DCD group and 5% in the classic group (P=0.581); the mean number of days of air leak was 2.5±1.8 and 2.4±2.2, respectively (P=0.966). The mean number of days until chest tube removal was 4.5±1.8 and 5.1±2.5 (P=0.41), the length of hospital stay was 7.8±3.7 and 8.9±4.0 (P=0.441) and the complication percentages were 4 (22%) and 7 (36%), respectively (P=0.227). DISCUSSION: In this study, no significant difference was observed when the DCD was compared with the classic system. This was the first randomized clinical trial for this indication; thus, future complementing studies are warranted.

Right main bronchial fracture resolution by digital thoracic drainage system.

Tracheobronchial stenosis is common in the thoracic surgery service, and iatrogenic injury of the airway after manipulation is not infrequent. When a digital thoracic drainage system came onto the market, many advantages were evident. A 24-year-old woman with critical right main bronchial stenosis underwent airway dilation that was complicated by a tear with a massive air leak, resulting in a total right pneumothorax. We employed a pleural drain connected to a digital thoracic drainage system. The drain was removed 2 days after successful resolution of the air leak.

Thoracoscopic Excision of Migrated Kirschner Wire to Right Pulmonary Hilum.

Kirschner wires are often used for the stabilization of complex fractures. Wire migration is a rare but still recognized complication of its use. A 56-year-old man suffered a clavicle fracture at age 26 that was stabilized with one Kirschner wire, and for 30 years he was asymptomatic. Recently, he presented with cough and right thoracic pain. Chest radiographs revealed migration of the Kirschner wire, and thoracoscopic visualization revealed that the Kirschner wire had penetrated the middle lobe parenchyma and was in close contact with the right auricle. This case study reports the successful thoracoscopic treatment of a rare complication of Kirschner wire migration.

A randomized prospective study of analgesic quality after thoracotomy: paravertebral block with bolus versus continuous infusion with an elastomeric pump.

OBJECTIVES: Paravertebral block (PVB) with infusion of local anaesthetic (LA) through a paravertebral catheter is an effective alternative to epidural analgesia in the management of post-thoracotomy pain. PVB can be done in two ways: either through administration of a bolus dose of the LA or continuous infusion via an infusion pump; currently, there is no consensus on which route is best. Our objective was to compare the efficacy of the PVB for post-thoracotomy pain control using bolus doses versus a continuous infusion pump. METHODS: We performed a prospective randomized study of 80 patients submitted to thoracotomy. Patients were divided into two independent groups (anterior thoracotomy--ANT--and posterolateral thoracotomy-POST). At the conclusion of the surgery, a catheter was inserted under direct vision in the thoracic paravertebral space at the level of the incision. In each group, patients were randomized to receive levobupivacaine 0.5% every 6 h ('Bolus' group) or levobupivacaine 0.25% in continuous infusion at 5 ml/h through an elastomeric pump ('Continuous infusion' group). Patients in both groups received the same dosage of LA: 300 mg/day. Metamizole (every 6 h) was administered as an adjunct. Subcutaneous meperidine was employed as a rescue medication. Pain scores were measured using the visual analogue scale (VAS) at 1, 6, 24, 48 and 72 h after surgery. RESULTS: Thirteen (16.2%) patients required meperidine for rescue (8 in continuous infusion and 5 in the bolus group). Mean VAS scores were the following: all the cases (n = 80): 5.0 ± 1.6, ANT (n = 36): 4.4 ± 1.8, POST (n = 44): 5.4 ± 1.6, Bolus (n = 40): 4.7 ± 1.7, Continuous infusion (n = 40): 5.2 ± 1.8, ANT with bolus (n = 18): 4.1 ± 1.7, ANT with continuous infusion (n = 18): 4.7 ± 1.8, POST with bolus (n = 22): 5.2 ± 1.5, POST with continuous infusion (n = 22): 5.6 ± 1.6. CONCLUSIONS: Post-thoracotomy pain control using a combination of PVB and a non-steroidal anti-inflammatory drug is a safe and effective approach. Patients submitted to ANT experienced less pain than those with POST 4.4 vs 5.4 (P = 0.02). Since no statistical differences were observed, it was not possible to confirm differences between the LA administered in a bolus versus continuous infusion.

Simultaneous bilateral posterior thoracotomy with the patient in the prone position for resection of bilateral posterior lung metastases.

Lung metastases limited to posterior segments can be removed through a posterior thoracotomy with the patient in the prone position. When these metastases are bilateral, a simultaneous approach can be performed. We present three cases of bilateral lung metastases of colorectal carcinoma removed through a simultaneous bilateral posterior thoracotomy with the patient in the prone position.

Bilateral thoracoscopic sympathetic block by clipping.

Main cause of dissatisfaction after videothoracoscopic (VATS) sympathectomy in the treatment of hyperhidrosis (HH) and facial blushing (FB) is compensatory sweating (CS). Sympathetic nerve (SN) clipping obtains the same results as sympathectomy in terms of efficacy and safety and levels of CS are similar or lesser than with the standard procedure, with the advantage that if necessary - massive intolerable CS-, this technique theoretically allows to revert the sympathetic block by removing the clips. The surgical procedure is performed through two incisions of 10 mm at the mid axillary and anterior axillary lines (third and fifth intercostal spaces). Through two ports a 30° camera and a diathermy hook are introduced into the pleural cavity. After the identification of the SN, parietal pleura is opened and the chain is isolated. Under video assistance the SN is clipped at the correspondent level with a right-angled endoscopic clip applier. This surgical procedure is illustrated and an overview of the literature is presented.

[Pericardial window by videothoracoscope in the treatment of pericardial effusion and tamponade]. / Ventana pericárdica por videotoracoscopia en el tratamiento de derrame y/o taponamiento pericárdico.

INTRODUCTION: Malignancies are the most common causes of pericardial effusion (PE) or tamponade (PT). Lung and breast carcinoma are the most frequent. The treatment of PE consists in the performance of drainage and/or pericardial window (PW) usually subxiphoid. In the present study we describe our experience with the PW by videothoracoscopic (VATS) approach, a procedure scarcely referred to in the literature. OBJECTIVE: To evaluate the efficacy of the PW by videothoracoscopic (VATS) approach in the treatment of PE and/or PT. PATIENTS AND METHOD: Retrospective study of 12 patients with PE submitted to PW by VATS in a period of 10 years, since February 1994 to October 2004. The surgical procedure employed was VATS, under general anesthesia, selective intubation and lateral decubitus. We systematically performed a PW anterior to phrenic nerve and studied pleural and pericardial fluids. Talc pleurodesis was added if neoplastic pleural effusion was objectived by a previous needle thoracocentesis and cytological analysis of pleural fluid. A single chest drain (24 F) was inserted after surgery, and removed when daily debit was under 100 ml. RESULTS: 12 patients were operated on, 4 men and 8 women, mean age of 58.6 years (range, 32-78). There was no surgical mortality. There were 8 cases of PT. The causes of PE were: breast carcinoma in 8 cases, lung carcinoma in 3 cases and infectious origin in one case. Mean duration of surgical procedure was 30 minutes. All the patients had concomitant pleural effusion. Surgical approach was by the left side in all the cases. Talc pleurodesis was added in 8 cases of the 12 that had pleural effusion, in the 8 cases cytological analysis had shown paraneoplastic origin. Chest drain was removed after a mean period of 3.5 days. There was no mortality associated with the procedure. Mean stay was 3.8 days. Mean survival was 12 months for breast cancer patients and 4 months for lung cancer. CONCLUSIONS: PW by VATS is a suitable procedure for the management of massive PE or PT. In our experience this procedure showed no mortality and minimal morbidity, providing symptomatic improvement (in PE and pleural efusión) in all the patients. This approach also makes possible the study of pleural cavity, the obtaining of parietal pleura samples and, if necessary, the performance of talc pleurodesis.

[Results of videothorascopic sympathectomy in the treatment of facial redness and hyperhidrosis in 41 patients]. / Resultados de la simpaticotomía videotoracoscópica en el tratamiento del rubor y la hiperhidrosis facial en 41 pacientes.

OBJECTIVE: To evaluate the results and complications of thoracic sympathectomy in the treatment of patients with uncontrollable blushing and facial hyperhidrosis. PATIENTS AND METHOD: Between May 2000 and August 2006 we performed 82 VATS sympathectomies on 41 patients with the diagnosis of uncontrollable blushing and/or facial hyperhidrosis. Two of them had been previously operated on without good results. The technique employed was bilateral VATS sympathectomy varying the levels depending on the presence of palmar and/or axillary hyperhidrosis and the anatomical limitations. The results were evaluated one week after the procedure and 3-6 months later in 41 patients; and also one year later in 34 patients. RESULTS: Twenty-two men and 19 women, with mean age of 33.7 years (range, 18-56). In 17 patients (41.5%) main symptom was facial hyperhidrosis and in 24 (58.5%) uncontrollable blushing. All the patients were discharged before 24 hours after surgery, 14 of them in an ambulatory surgery program. There was improvement of the symptoms in all the cases of facial hyperhidrosis 17/17 (100%). In the blushing group the procedure was effective in 20/24 cases (83.3%). Results were good with the second surgery. Compensatory sweating was observed in 16/41 patients (39%), and was severe in 6 (14.6%). CONCLUSIONS: Sympathectomy is a safe and effective procedure in the management of facial hyperhidrosis and uncontrollable blushing. Compensatory sweating remains as the main secondary effect.