[Comparative analysis of video-assisted thoracic surgery versus open resection for early-stage thymoma]. / Análisis comparativo del abordaje para el tratamiento del timoma estadio i-ii: VATS versus abordaje convencional.

BACKGROUND: Video-assisted thoracic surgery (VATS) has significantly developed over the last decade. However, a VATS approach for thymoma remains controversial. The aim of this study was to evaluate the feasibility of VATS thymectomy for the treatment of early-stage thymoma and to compare the outcomes with open resection. METHODS: A comparative study of 59 patients who underwent surgical resection for early stage thymoma (VATS: 44 and open resection: 15) between 1993 and 2011 was performed. Data of patient characteristics, morbidity, mortality, length of hospital stay, the relationship between miasthenia gravis-thymoma, recurrence, and survival were collected for statistical analysis. RESULTS: Thymomas were classified according to Masaoka staging system: 38 in stage I (VATS group: 29 and open group: 9) and 21 in stage II (VATS group: 15 and open group: 6). The mean tumor size in the open group was 7.6cm (13-4cm) and in the VATS group 6.9cm (12-2.5cm). The average length of stay was shorter in the VATS group than in the open group (P<.001). No significant differences were found in the estimated recurrence-free and overall 5-year survival rates (96% vs. 100%) between the 2 groups. CONCLUSIONS: VATS thymectomy for early-stage thymoma is technically feasible and is associated with a shorter hospital stay. The 5-year oncologic outcomes were similar in the open and VATS groups.

Sympathetic chain clipping for hyperhidrosis is not a reversible procedure.

BACKGROUND: Many techniques have been used to treat palmar hyperhidrosis. Compensatory sweating is a difficult adverse effect. Clipping has been proposed because of its supposed reversibility when clips are removed at a later date. The primary aims of this article are to investigate the neuronal lesion of the sympathetic chain caused by clipping and to study the possibility of regeneration after removal of the clips. METHODS: We performed an experimental study at the Minimally Invasive Surgery Centre Jesus Uson in Caceres (Spain). We used a swine model, performing clipping, unclipping, and extirpation of different segments of sympathetic chain with clips and after clip removal, following a chronogram of 10, 20, and 30 days. Pathologic studies of specimens and statistics were done at the University of Seville. RESULTS: Ten days after clipping, all sympathetic chains displayed evident Wallerian degeneration. Twenty days after clipping, Wallerian degeneration of myelinated fibers was more widespread and also more striking. Thirty days after clipping, a very marked macrophagic reaction was visible, with multiple signs of phagocytosis of myelin debris. By 30 days post operation and 20 days after clip removal, a few residual myelin and amyelinated fibers were visible. These findings suggest that axon regeneration is not possible. CONCLUSIONS: There are Wallerian degeneration and axon loss 10 days after clipping. The almost total absence of myelinated and amyelinated fibers following clip removal suggests that there was no nerve regeneration, and that therefore clipping cannot be considered a reversible technique.

[Pericardial window by videothorascopy]. / Ventana pericárdica por videotoracoscopia.

INTRODUCTION: Pericardial effusion is a clinical condition requiring multidisciplinary management. There are several surgical techniques for its diagnosis and treatment. In the present study we report our experience in performing a pericardial window (PW) by videothorascopy. MATERIAL AND METHODS: We performed surgery on 56 patients (20 females and 36 males), with a mean age of 56±1.22 years, and diagnosed with moderate to severe chronic pericardial effusion. The side chosen for the approach depended on whether there was an associated pleural effusion or lung lesion, and if not the left side was chosen. RESULTS: The mean duration of the surgery was 37.6±16 minutes. The definitive diagnoses were malignant processes in 23% of cases, including bronchogenic carcinoma and breast cancer. The intra-operative mortality was 0%. CONCLUSIONS: Videothorascopic pericardial window is an effective and safe technique for the diagnosis and treatment of chronic pericardial effusion, and which enables it to be drained and perform a pleuro-pulmonary and/or mediastinal biopsy during the same surgical act.

[Resection of 8 mediastinal bronchogenic cysts by video-assisted thoracoscopy]. / Quiste broncogénico de mediastino. Resección videotoracoscópica en 8 casos.

Mediastinal bronchogenic cysts are an uncommon entity and surgical experience of their removal by video-assisted thoracoscopy is limited. We present our patient outcomes and surgical technique in the treatment of bronchogenic cysts by video-assisted thoracoscopy. The study included 8 patients (4 females and 4 males between the ages of 4 and 52 years), 7 of whom presented clinical symptoms. The mean widest diameter of the cyst was 7.6 cm. In 5 patients the cyst was in the middle mediastinum and in 3, the posterior mediastinum. The intervention was performed using 3 or 4 entry points. Initial puncture of the cyst and removal of its contents greatly facilitated cyst manipulation and subsequent dissection of the cyst sac from the structures to which it was attached. In all 8 cases resection by video-assisted thoracoscopy was carried out with no intraoperative complications. The mean postoperative hospital stay was 3.3 days. During follow-up, which ranged from 4 months to 10 years, no patients presented late-onset or recurrent complications.

[Resection of pulmonary metastases in 148 patients: analysis of prognostic factors]. / Cirugía de metástasis pulmonares en 148 pacientes. Análisis de sus factores pronósticos.

OBJECTIVE: To evaluate the prognostic factors for survival in a series of patients who underwent surgery for pulmonary metastases from primary tumors in distinct organs. PATIENTS AND METHODS: This was a retrospective study of 148 patients operated between May 2001 and May 2007. Multivariate analysis was used to evaluate overall survival. Patients scheduled for tumorectomy were included provided their primary tumor was controlled and they had no extrathoracic recurrence and adequate cardiorespiratory function. The influence of the following prognostic factors was analyzed: number and diameter of the metastases, lymph node infiltration, complete resection, and, above all, histological type. A significance level of 95% was used. RESULTS: A total of 90 men (60.81%) and 58 women (39.19%) were operated. The mean (SD) age was 56.5 (9.7) years. The actuarial survival at 6 years was 30.3% (n=45) and the median survival was 34 months. The factors that affected survival were the number of metastases (P< .05), diameter of the lesions (P< .05), lymph node infiltration (P< .05), complete resection (P< .05), and, above all, histological type (P< .05). Tumorectomy was the most commonly performed operation. CONCLUSIONS: These results suggest that, in the absence of other therapeutic options and contraindications, we should operate on patients in whom the primary tumor is controlled and in whom complete resection can be performed. Even if factors associated with poor prognosis are present, the outcomes are always better than when surgery is not performed, particularly in view of the relatively low morbidity and mortality associated with this type of surgery.

Resultados de la Neumonectomía en el Cáncer de Pulmón no Microcítico: Estudio Unicéntrico de Morbi-Mortalidad / Results of Pneumonectomy in Non-Small Cell Lung Cancer: Single Center Study of Morbi-Mortality

Resumen abreviado: Estudio de la morbi-mortalidad de la neumonectomía por Cáncer de pulmón en nuestro centro durante 2012-2017. La morbilidad <90días y mortalidad <90días global fue 38,4% y 17%. La morbilidad y mortalidad son mayores en lado derecho. Durante último trienio disminuyó la morbi-mortalidad y el número de neumonectomías por año (5,3%).Introducción: Presentamos este trabajo para analizar la morbi-mortalidad de la neumonectomía en nuestro centro, así como los factores que influyen en la misma, mostrando nuestros resultados en el tiempo en dos períodos: 2012-2014 y 2015-2017.Material y métodos: Se trata de un estudio analítico y observacional retrospectivo de todas las neumonectomías por Cáncer de pulmón no células pequeñas (CPNCP) intervenidas durante 2012-2017. Se ha analizado la morbi-mortalidad de toda la muestra según lateralidad, FEV1, estadio, edad y sistema de sutura. También se ha estudiado la morbi-mortalidad durante: 2012-2014 y 2015-2017. El análisis estadístico se realizó con el software SPSS versión 26.Resultados: Se realizaron 65 neumonectomías (izquierdas: 39 y derechas: 26) en pacientes con el diagnóstico de CPNCP. La morbilidad <90días fue del 38,4% (25/65). El porcentaje de complicaciones en el lado derecho y en los pacientes con FEV1 <80% fue 46%, en estadio avanzado 50%, pacientes >75años 77% y neumonectomías con sistema de sutura TA-roticulator 50%. La mortalidad <90días global fue un 17% (11/65). La mortalidad de las neumonectomías en los pacientes con FEV1 <80% fue 18%, el lado derecho 30,7%, en estadio avanzado 22,2%, pacientes >75años 22% y neumonectomías con sistema de sutura TA-roticulator 28%. El análisis por períodos reveló una morbilidad (27,5%) y mortalidad (6,8%) más baja en último trienio y menor número de neumonectomías por año (5,3%). (AU)

Resumen abreviado: Study of the morbidity and mortality of pneumonectomy for lung cancer in our center during 2012-2017. Overall morbidity <90 days and mortality <90 days were 38.4% and 17%. Morbidity and mortality are higher on the right side. During the last triennium, morbidity and mortality and the number of pneumonectomies per year decreased (5.3%).Introduction: We present this work to analyze the morbidity and mortality of pneumonectomy in our center, as well as the factors that influence it, showing our results over time in two periods: 2012-2014 and 2015-2017.Material and methods: This is a retrospective analytical and observational study of all pneumonectomies for non-small cell lung cancer (NSCLC) operated during 2012-2017. The morbi-mortality of the entire sample was analyzed according to laterality, FEV1, stage, age and suture system. Morbi-mortality has also been studied during: 2012-2014 and 2015-2017. Statistical analysis was performed with SPSS version 26 software.Results: 65 pneumonectomies were performed (left: 39 and right: 26) in patients diagnosed with NSCLC. Morbidity <90 days was 38.4% (25/65). The percentage of complications on the right side and in patients with FEV1 <80% was 46%, in advanced stage 50%, patients >75 years old 77% and pneumonectomies with TA-roticulator suture system 50%. Overall <90-day mortality was 17% (11/65). Mortality of pneumonectomies in patients with FEV1 <80% was 18%, right side 30.7%, advanced stage 22.2%, patients >75 years old 22%, and pneumonectomies with TA-roticulator suture system 28%. The analysis by periods revealed a lower morbidity (27.5%) and mortality (6.8%) in the last triennium and a lower number of pneumonectomies per year (5.3%). (AU)

Diagnosis and Treatment of Hemoptysis. / Diagnóstico y tratamiento de la hemoptisis.

Hemoptysis is the expectoration of blood from the tracheobronchial tree. It is commonly caused by bronchiectasis, chronic bronchitis, and lung cancer. The expectorated blood usually originates from the bronchial arteries. When hemoptysis is suspected, it must be confirmed and classified according to severity, and the origin and cause of the bleeding determined. Lateral and AP chest X-ray is the first study, although a normal chest X-ray does not rule out the possibility of malignancy or other underlying pathology. Multidetector computed tomography (MDCT) must be performed in all patients with frank hemoptysis, hemoptoic sputum, suspicion of bronchiectasis or risk factors for lung cancer, and in those with signs of pathology on chest X-ray. MDCT angiography has replaced arteriography in identifying the arteries that are the source of bleeding. MDCT angiography is a non-invasive imaging technique that can pinpoint the presence, origin, number and course of the systemic thoracic (bronchial and non-bronchial) and pulmonary arterial sources of bleeding. Endovascular embolization is the safest and most effective method of managing bleeding in massive or recurrent hemoptysis. Embolization is indicated in all patients with life-threatening or recurrent hemoptysis in whom MDCT angiography shows artery disease. Flexible bronchoscopy plays a pivotal role in the diagnosis of hemoptysis in patients with hemoptoic sputum or frank hemoptysis. The procedure can be performed rapidly at the bedside (intensive care unit); it can be used for immediate control of bleeding, and is also effective in locating the source of the hemorrhage. Flexible bronchoscopy is the first-line procedure of choice in hemodynamically unstable patients with life-threatening hemoptysis, in whom control of bleeding is of vital importance. In these cases, surgery is associated with an extremely high mortality rate, and is currently only indicated when bleeding is secondary to surgery and its source can be accurately and reliably located.

Peripheral arterial embolism arising from pulmonary adenocarcinoma.

Bronchogenic carcinoma is a rare source of peripheral arterial embolism. We present the case of a 28-year-old female nonsmoker with an adenocarcinoma of the left main bronchus involving the pulmonary veins. While the patient was hospitalized awaiting operation, she presented embolization in her legs; embolectomy and fasciotomy were necessary to treat compartment syndrome. Echocardiography disclosed floating tumoral masses in the left atrium. Seven days later, an operation was performed with cardiopulmonary bypass to remove the tumor masses from the atrial lumen; pulmonary veins were sutured from within the atrium, and pneumonectomy was performed. Fulminant infection of the lower limbs developed that led to gangrene and multiple organ failure, and the patient died 8 days after the operation.

Usefulness of videothoracoscopic intrapericardial examination of pulmonary vessels to identify resectable clinical T4 lung cancer.

BACKGROUND: Discrepancies in predicting resectability by imaging techniques (computed tomography and magnetic resonance imaging) compared with actual intraoperative findings have persuaded us to perform systematic exploratory videothoracoscopy (EVT) as the first step in the surgical evaluation of patients with lung cancer. Resectability of centrally located primary tumors with intrapericardial extension (clinical T4), however, can be established only by direct examination of the pericardial sac contents. Therefore, in these instances, videopericardioscopy (VPC) has been added to our protocol. METHODS: From April 1993 to December 2000, members of our department used EVT to assess 620 patients with lung cancer. Of them, 27 patients, 25 men and 2 women, were seen with pericardial tumor extension. The mean age of the group was 62 years (range, 41 to 77 years). To be properly evaluated, these patients underwent VPC. We used three and, occasionally, four incisions to perform EVT. The same incisions were used to enter the pericardial cavity during VPC. RESULTS: In 15 of the 27 patients, hilar and vascular invasion was correctly predicted by imaging techniques. The other 12, however, were correctly staged only during EVT. The tumor was deemed unresectable by VPC in 6 patients (5 with invasion at the origin of the pulmonary artery and 1 with involvement of the left inferior pulmonary vein and left atrium), and exploratory thoracotomy was obviated. There was no morbidity or mortality in these 6 patients, and their mean length of hospital stay was 48 hours. The remaining 21 patients underwent thoracotomy and intrapericardial lung resection. Six of them had been considered to have unresectable disease on the basis of computed tomographic findings or magnetic resonance imaging studies. An average of 22 minutes (range, 16 to 33 minutes) was added to the operation when VPC was used. CONCLUSIONS: This study suggests that EVT is superior to imaging techniques (computed tomography or magnetic resonance imaging) in detecting tumor extension into the pericardium. In addition, short of an exploratory thoracotomy, VPC seems to be the most definitive study to establish resectability of centrally located tumors with pericardial invasion. Unnecessary exploratory thoracotomies can thus be avoided.

Experience and development of the video-assisted thoracic surgery lobectomy technique: comparative study with conventional surgery in stage I non-small cell lung cancer.

BACKGROUND: Surgical treatment of stage I non-small cell lung cancer (NSCLC) can be performed either by thoracotomy or by employing video-assisted thoracic surgery (VATS). The aim of this study was to compare long and short-term results of conventional surgery (CS) vs. VATS lobectomy in the treatment of stage I NSCLC. MATERIALS AND METHODS: We performed a retrospective, analytical study of patients undergoing surgery for stage I NSCLC during the period January 1993 to December 2005. The variables analyzed were overall survival, recurrence, distant metastasis, morbidity, mortality and hospital stay. During this period, 256 anatomic lung resections were performed: 141 by CS and 115 by VATS. RESULTS: There were statistically significant differences in: (i)mean hospital stay in patients with no complications (VATS group: 4.3 days vs. CS group: 8.7 days, P=.0001); (ii)mean hospital stay in patients with complications (VATS: 7.2 days vs. CS: 13.7 days, P=.0001), and (iii)morbidity (VATS: 15.6% vs. CS: 36.52%, P=.0001). No statistically significant differences were found in: (i)mortality (VATS: 2.17% vs. CS: 1.7%, P=.88); (ii)5-year overall survival (VATS: 68.1% vs. CS: 63.8%), and (iii) local recurrence and distant metastasis (P=.82). CONCLUSIONS: VATS lobectomy is a safe and effective approach, with a shorter hospital stay and lower morbidity than CS; no statistically significant differences were observed in survival in patients undergoing surgery for stage I NSCLC.

Herida traqueal por arma blanca con orificio de entrada y salida / Tracheal stab wound with entrance and exit orífices

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Posterolateral thoracotomy without muscle division: a new approach to complex procedures.

Today, there is a strong increase in video-assisted thoracic surgery; however, there are still some diseases and interventions that need a wide pleural cavity exposure (i.e. sulcus tumours and extended resections). These complex procedures are usually performed via a standard posterolateral thoracotomy, which is a good approach but has significant disadvantage due to pain and difficulty coughing. We propose a new thoracotomy that avoids a dorsal muscle division but has the same intrathoracic exposure as a posterolateral thoracotomy.

Comparative study of talc poudrage versus pleural abrasion for the treatment of primary spontaneous pneumothorax.

Primary spontaneous pneumothorax is a pathology mainly affecting healthy young patients. Clinical guidelines do not specify the type of pleurodesis that should be conducted, due to the lack of comparative studies on the different techniques. The aim of this study was to compare talc poudrage and pleural abrasion in the treatment of spontaneous pneumothorax. A retrospective comparative study was performed, including 787 patients with primary spontaneous pneumothorax. The 787 patients were classified into two groups: Group A (pleural abrasion) n = 399 and Group B (talc pleurodesis) n = 388. The variables studied were recurrence, surgical time, morbidity and in-hospital length of stay. Statistical analysis was done by an unpaired t-test and Fisher's exact test (SSPS 18.0). Statistically significant differences were observed in the variables: surgical time (A: 46 ± 12.3; B: 37 ± 11.8 min; P < 0.001); length of stay (A: 4.7 ± 2.5; B: 4.3 ± 1.8 days; P = 0.01); apical air camera (A: 25; B: 4; P < 0.001); pleural effusion (A: 6; B: 0; P = 0.05). Talc poudrage shows shorter surgical times and length of stay, and lower re-intervention rates. Morbidity is lower in patients with talc poudrage. Statistically significant differences were not observed in recurrence, persistent air leaks, atelectasis and haemothorax.

First rib resection using videothorascopy for the treatment of thoracic outlet syndrome.

OBJECTIVE: Thoracic outlet syndrome is a condition caused by compression of the subclavian artery, subclavian vein and/or the brachial plexus. Scalene muscle section and first rib removal is the most effective treatment. The objective of this article is to demonstrate first rib resection using videothoracoscopy. TECHNIQUE: We describe first rib removal by videothoracoscopy using three 12 mm entrance ports (although one is widened to 3 cm to introduce periosteotomy cutters and rib shears). We have performed this operation on three cases of thoracic outlet syndrome with very good results. CONCLUSIONS: Removal of the first rib by videothoracoscopy is a viable and very aesthetic technique with a low morbidity. It is a very good option for the majority of patients affected by this syndrome, particularly in obese patients or those with Pager-Schroetter syndrome.

[Incisions and routes of surgical access]. / Incisiones y vías de abordaje quirúrgicas.

The correct choice of the incision to the chest is essential for surgical success and a favorable postoperative course. The route of access to the thorax must be adapted both to the disease and to the thoracic surgeon's experience, striking a balance between aggressiveness and the safety of the technique. This article describes the characteristics of surgical incisions, including classical thoracotomy, sternotomy and its variants, thoracoscopy and minimally-invasive surgery. The distinct techniques used to explore mediastinal lymphatic areas, including video-assisted mediastinal lymphadenectomy and transcervical extended mediastinal lymphadenectomy, are also described.

Diagnóstico y tratamiento de la hemoptisis / Diagnosis and Treatment of Hemoptysis

La hemoptisis es la expectoración de sangre proveniente del árbol traqueobronquial. Las enfermedades que más frecuentemente la originan son las bronquiectasias, la bronquitis crónica y el carcinoma broncogénico. Las arterias bronquiales son el origen de la mayoría de las hemoptisis. Ante un paciente con sospecha de hemoptisis se debe confirmar su existencia, establecer su gravedad, localizar el origen y determinar su causa. La radiografía de tórax posteroanterior y lateral es la primera prueba de imagen que debe realizarse, aunque la existencia de una radiografía de tórax normal no excluye la posibilidad de malignidad u otra patología de base. Debe realizarse TC multidetector (TCMD) de tórax en todos los pacientes con hemoptisis franca, en los que presentan esputo hemoptoico y sospecha de bronquiectasias o factores de riesgo de carcinoma broncogénico, y en los que tienen radiografía de tórax patológica. La angio-TCMD ha sustituido a la arteriografía como método diagnóstico de las arterias que son fuente de sangrado en las hemoptisis. La angio-TCMD es una técnica de imagen no invasiva que identifica correctamente la presencia, el origen, el número y el trayecto de las arterias sistémicas torácicas, bronquiales y no bronquiales, y de las arterias pulmonares que pueden ser fuente del sangrado. El tratamiento más seguro y eficaz para detener el sangrado en la mayoría de los casos de hemoptisis masiva o recurrente es la embolización endovascular. La embolización está indicada en todos los pacientes con hemoptisis amenazante o recurrente en los que se detectan arterias patológicas en la angio-TCMD. La broncoscopia flexible juega un papel primordial en el diagnóstico de la hemoptisis, tanto de la expectoración hemoptoica como de la hemoptisis franca. Puede ser realizada rápidamente en la cama del paciente (UCI) y, además de su utilidad en el control inmediato de la hemorragia, tiene una alta rentabilidad en la localización del sangrado. La broncoscopia flexible es el procedimiento inicial de elección en pacientes con hemoptisis amenazante e inestabilidad hemodinámica, donde el control de la hemorragia es vital. La cirugía en estos casos tiene una tasa de mortalidad muy alta, por lo que la indicación actual de cirugía en la hemoptisis amenazante está reservada para aquellas situaciones en las que la causa de la misma sea tributaria de tratamiento quirúrgico y haya una localización concreta y fiable del origen de la hemorragia

Hemoptysis is the expectoration of blood from the tracheobronchial tree. It is commonly caused by bronchiectasis, chronic bronchitis, and lung cancer. The expectorated blood usually originates from the bronchial arteries. When hemoptysis is suspected, it must be confirmed and classified according to severity, and the origin and cause of the bleeding determined. Lateral and AP chest X-ray is the first study, although a normal chest X-ray does not rule out the possibility of malignancy or other underlying pathology. Multidetector computed tomography (MDCT) must be performed in all patients with frank hemoptysis, hemoptoic sputum, suspicion of bronchiectasis or risk factors for lung cancer, and in those with signs of pathology on chest X-ray. MDCT angiography has replaced arteriography in identifying the arteries that are the source of bleeding. MDCT angiography is a non-invasive imaging technique that can pinpoint the presence, origin, number and course of the systemic thoracic (bronchial and non-bronchial) and pulmonary arterial sources of bleeding. Endovascular embolization is the safest and most effective method of managing bleeding in massive or recurrent hemoptysis. Embolization is indicated in all patients with life-threatening or recurrent hemoptysis in whom MDCT angiography shows artery disease. Flexible bronchoscopy plays a pivotal role in the diagnosis of hemoptysis in patients with hemoptoic sputum or frank hemoptysis. The procedure can be performed rapidly at the bedside (intensive care unit); it can be used for immediate control of bleeding, and is also effective in locating the source of the hemorrhage. Flexible bronchoscopy is the first-line procedure of choice in hemodynamically unstable patients with life-threatening hemoptysis, in whom control of bleeding is of vital importance. In these cases, surgery is associated with an extremely high mortality rate, and is currently only indicated when bleeding is secondary to surgery and its source can be accurately and reliably located