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The pleural lining of the thorax regulates local immunity, inflammation and repair. A variety of conditions, both benign and malignant, including pleural mesothelioma, can affect this tissue. A lack of knowledge concerning the mesothelial and stromal cells comprising the pleura has hampered the development of targeted therapies. Here, we present the first comprehensive single-cell transcriptomic atlas of the human parietal pleura and demonstrate its utility in elucidating pleural biology. We confirm the presence of known universal fibroblasts and describe novel, potentially pleural-specific, fibroblast subtypes. We also present transcriptomic characterisation of multiple in vitro models of benign and malignant mesothelial cells, and characterise these through comparison with in vivo transcriptomic data. While bulk pleural transcriptomes have been reported previously, this is the first study to provide resolution at the single-cell level. We expect our pleural cell atlas will prove invaluable to those studying pleural biology and disease. It has already enabled us to shed light on the transdifferentiation of mesothelial cells, allowing us to develop a simple method for prolonging mesothelial cell differentiation in vitro.
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Mesotelioma Maligno , Mesotelioma , Neoplasias Pleurales , Humanos , Pleura/patología , Mesotelioma/genética , Mesotelioma/patología , Mesotelioma Maligno/patología , Neoplasias Pleurales/genética , Neoplasias Pleurales/patología , Perfilación de la Expresión GénicaRESUMEN
BACKGROUND: Enhanced recovery pathways are associated with improved postoperative outcomes. However, as enhanced recovery pathways have become more complex and varied, compliance has reduced. The 'DrEaMing' bundle re-prioritises early postoperative delivery of drinking, eating, and mobilising. We investigated relationships between DrEaMing compliance, postoperative hospital length of stay (LOS), and complications in a prospective multicentre major surgical cohort. METHODS: We interrogated the UK Perioperative Quality Improvement Programme dataset. Analyses were conducted in four stages. In an exploratory cohort, we identified independent predictors of DrEaMing. We quantified the association between delivery of DrEaMing (and its component variables) and prolonged LOS in a homogenous colorectal subgroup and assessed generalisability in multispecialty patients. Finally, LOS and complications were compared across hospitals, stratified by DrEaMing compliance. RESULTS: The exploratory cohort comprised 22 218 records, the colorectal subgroup 7230, and the multispecialty subgroup 5713. DrEaMing compliance was 59% (13 112 patients), 60% (4341 patients), and 60% (3421), respectively, but varied substantially between hospitals. Delivery of DrEaMing predicted reduced odds of prolonged LOS in colorectal (odds ratio 0.51 [0.43-0.59], P<0.001) and multispecialty cohorts (odds ratio 0.47 [0.41-0.53], P<0.001). At the hospital level, complications were not the primary determinant of LOS after colorectal surgery, but consistent delivery of DrEaMing was associated with significantly shorter LOS. CONCLUSIONS: Delivery of bundled and unbundled DrEaMing was associated with substantial reductions in postoperative LOS, independent of the effects of confounder variables. Consistency of process delivery, and not complications, predicted shorter hospital-level length of stay. DrEaMing may be adopted by perioperative health systems as a quality metric to support improved patient outcomes and reduced hospital length of stay.
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Neoplasias Colorrectales , Complicaciones Posoperatorias , Estudios de Cohortes , Neoplasias Colorrectales/cirugía , Humanos , Tiempo de Internación , Complicaciones Posoperatorias/epidemiología , Estudios ProspectivosRESUMEN
Spontaneous diaphragm rupture is a rare but potentially life-threatening condition, requiring urgent surgical intervention. Here we present two patients who developed spontaneous right hemidiaphragm rupture with abdominal visceral herniation into the thoracic cavity several days following bilateral lung transplantation, as an unusual complication. Both patients' surgeries were performed through bilateral anterior thoracotomies and were uneventful. There may be an association with this complication and patients suffering with emphysema, typically receiving donor lungs smaller than their native lungs, and with significant pretransplant exposure to steroids, factors that when combined may contribute to an increased risk of spontaneous diaphragmatic rupture in the absence of a significant precipitant. If a similar clinical picture is seen, teams managing lung transplant recipients should be aware of this potential complication and recognize the need for urgent intervention.
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Trasplante de Pulmón , Enfermedades Musculares , Enfisema Pulmonar , Diafragma , Humanos , Trasplante de Pulmón/efectos adversos , RoturaRESUMEN
OBJECTIVE: To assess the feasibility and effectiveness of an opioid-free anesthesia (OFA) technique in lung cancer resection surgery versus standard opioid-based techniques. DESIGN: Retrospective, propensity-matched, case-control study. SETTING: A single, specialty cardiothoracic center between January 2018 and July 2019. PARTICIPANTS: Adult patients undergoing lung cancer resection surgery. INTERVENTIONS: A cohort of 83 patients undergoing an OFA technique (OFA group) for lung cancer resection surgery was matched with 83 patients who underwent similar surgery with a standard anesthesia technique (STD group). Outcome measures compared between the 2 groups included postoperative pain scores at 0, 1, and 24 hours; 24-hour postoperative morphine patient-controlled analgesia consumption; recovery room and hospital lengths of stay; and 30-day all-cause mortality. MEASUREMENT AND MAIN RESULTS: No difference was found in median pain scores (interquartile range [IQR]) at 0 hours: STD 0 (0-1), OFA 0 (0-1); pâ¯=â¯0.48. Median pain scores (IQR) at 1 hour were statistically significantly greater in the STD group compared with the OFA group: STD 1 (0-1), OFA 0 (0-1); pâ¯=â¯0.03. There was no difference in median pain scores (IQR) at 24 hours: STD 0 (0-1), OFA 0 (0-1); pâ¯=â¯0.49. Mean postoperative 24-hour patient-controlled analgesia morphine consumption (standard deviation) was similar between groups: STD 21.1 (±18.8) mg, OFA 16.2 (±18.1) mg; pâ¯=â¯0.16. There was no difference in mean time spent in the postoperative recovery (standard deviation) area between the 2 groups: STD 116 (±49) minutes, OFA 108 (±34) minutes; pâ¯=â¯0.27. Median hospital length of stay (IQR) was longer in the STD group compared with the OFA group: STD 4 (2-6) days, OFA 3 (2-4) days; pâ¯=â¯0.002. CONCLUSIONS: This case-control study demonstrated that an OFA technique in lung cancer resection surgery offers a feasible and safe approach, resulting in similar postoperative pain scores and morphine consumption compared with standard opioid-containing techniques.
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Anestesia , Neoplasias Pulmonares , Adulto , Analgésicos Opioides , Estudios de Casos y Controles , Humanos , Neoplasias Pulmonares/cirugía , Dolor Postoperatorio/tratamiento farmacológico , Dolor Postoperatorio/prevención & control , Estudios RetrospectivosRESUMEN
BACKGROUND: Non small cell lung cancer (NSCLC) diagnosis and treatment is a highly complex process, requiring managerial skills merged with clinical knowledge and experience. Integrated care pathways (ICPs) might be a good strategy to overview and improve patient's management. The aim of this study was to review the ICPs of NSCLC patients in a University Hospital and to identify areas of quality improvement. MATERIALS AND METHODS: The electronic medical records of 169 NSCLC patients visited at the University Hospital were retrospectively reviewed. Quality of care (QoC) has been measured trough fifteen indicators, selected according main international Guidelines and approved by the multi-disciplinary team for thoracic malignancies. Results have been compared with those of a similar retrospective study conducted at the same hospital in 2008. RESULTS: A total of 146 patients were considered eligible. Eight of fifteen indicators were not in line with the benchmarks. We compared the results obtained in the two separate periods. Moreover, we process some proposal to be discussed with the general management of the hospital, aimed to redesign NSCLC care pathways. CONCLUSIONS: ICPs confirm to be feasible and to be an effective tool in real life. The periodic measurement of QoC indicators is necessary to ensure clinical governance of patients pathways.
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Carcinoma de Pulmón de Células no Pequeñas/terapia , Vías Clínicas/organización & administración , Hospitales Universitarios/organización & administración , Neoplasias Pulmonares/terapia , Mejoramiento de la Calidad/organización & administración , Adulto , Anciano , Anciano de 80 o más Años , Vías Clínicas/normas , Registros Electrónicos de Salud , Medicina Basada en la Evidencia , Femenino , Hospitales Universitarios/normas , Humanos , Masculino , Persona de Mediana Edad , Mejoramiento de la Calidad/normas , Calidad de la Atención de Salud , Estudios Retrospectivos , Factores de Tiempo , Tiempo de TratamientoRESUMEN
Cardiac stem cells (CSC) from explanted decompensated hearts (E-CSC) are, with respect to those obtained from healthy donors (D-CSC), senescent and functionally impaired. We aimed to identify alterations in signaling pathways that are associated with CSC senescence. Additionally, we investigated if pharmacological modulation of altered pathways can reduce CSC senescence in vitro and enhance their reparative ability in vivo. Measurement of secreted factors showed that E-CSC release larger amounts of proinflammatory cytokine IL1ß compared with D-CSC. Using blocking antibodies, we verified that IL1ß hampers the paracrine protective action of E-CSC on cardiomyocyte viability. IL1ß acts intracranially inducing IKKß signaling, a mechanism that via nuclear factor-κB upregulates the expression of IL1ß itself. Moreover, E-CSC show reduced levels of AMP protein kinase (AMPK) activating phosphorylation. This latter event, together with enhanced IKKß signaling, increases TORC1 activity, thereby impairing the autophagic flux and inhibiting the phosphorylation of Akt and cAMP response element-binding protein. The combined use of rapamycin and resveratrol enhanced AMPK, thereby restoring downstream signaling and reducing IL1ß secretion. These molecular corrections reduced E-CSC senescence, re-establishing their protective activity on cardiomyocytes. Moreover ex vivo treatment with rapamycin and resveratrol improved E-CSC capacity to induce cardiac repair upon injection in the mouse infarcted heart, leading to reduced cardiomyocyte senescence and apoptosis and increased abundance of endogenous c-Kit(+) CSC in the peri-infarct area. Molecular rejuvenation of patient-derived CSC by short pharmacologic conditioning boosts their in vivo reparative abilities. This approach might prove useful for refinement of CSC-based therapies.
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Infarto del Miocardio/terapia , Miocitos Cardíacos/trasplante , Trasplante de Células Madre/métodos , Animales , Senescencia Celular/efectos de los fármacos , Senescencia Celular/fisiología , Modelos Animales de Enfermedad , Femenino , Humanos , Ratones , Ratones SCID , Miocardio/citología , Miocitos Cardíacos/citología , Miocitos Cardíacos/efectos de los fármacos , Miocitos Cardíacos/metabolismo , Resveratrol , Transducción de Señal , Sirolimus/farmacología , Estilbenos/farmacologíaRESUMEN
OBJECTIVES: The adoption of robot-assisted thoracic surgery (RATS) has helped to overcome some of the challenges associated with surgeons performing conventional video-assisted thoracic surgery. The Versius Surgical System (CMR Surgical, Cambridge, UK) has been developed iteratively in line with surgical team feedback to improve the surgeon's experience and patient outcomes. The goal of this study was to assess the use of the device in RATS in a preclinical setting and to fulfil Idea, Development, Exploration, Assessment, Long-Term Follow Up-Devices stage 1 (Idea). METHODS: Four cadaveric sessions were conducted between November 2018 and December 2020, during which device performance in a range of thoracic operations was assessed. Procedures were categorized as either completed or not completed, and surgeons evaluated the device's ability to successfully complete necessary surgical steps. Port and bedside unit positions were recorded. RESULTS: In total, 22/24 (91.7%) thoracic procedures were successfully completed, including 17/18 lobectomies, 2/3 thymectomies and 3/3 diaphragm plications, in 9 cadaver specimens. One thymectomy could not be completed due to cadaver anatomy and 1 lobectomy was not completed due a console system fault. Port and bedside unit configurations were successfully validated for all procedures, and lead surgeons deemed the device to be well-suited for thoracic surgery. CONCLUSIONS: This preclinical study demonstrated the successful use of the device in RATS in cadaveric models and supports progression to small-scale clinical studies, as part of Idea, Development, Exploration, Assessment, Long-Term Follow Up-Devices stage 2a (Development).
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Robótica , Cirugía Torácica , Cadáver , Humanos , Neumonectomía/métodos , Cirugía Torácica Asistida por Video/métodosRESUMEN
INTRODUCTION: Major surgery accounts for a substantial proportion of health service activity, due not only to the primary procedure, but the longer-term health implications of poor short-term outcome. Data from small studies or from outside the UK indicate that rates of complications and failure to rescue vary between hospitals, as does compliance with best practice processes. Within the UK, there is currently no system for monitoring postoperative complications (other than short-term mortality) in major non-cardiac surgery. Further, there is variation between national audit programmes, in the emphasis placed on quality assurance versus quality improvement, and therefore the principles of measurement and reporting which are used to design such programmes. METHODS AND ANALYSIS: The PQIP patient study is a multi-centre prospective cohort study which recruits patients undergoing major surgery. Patient provide informed consent and contribute baseline and outcome data from their perspective using a suite of patient-reported outcome tools. Research and clinical staff complete data on patient risk factors and outcomes in-hospital, including two measures of complications. Longer-term outcome data are collected through patient feedback and linkage to national administrative datasets (mortality and readmissions). As well as providing a uniquely granular dataset for research, PQIP provides feedback to participating sites on their compliance with evidence-based processes and their patients' outcomes, with the aim of supporting local quality improvement. ETHICS AND DISSEMINATION: Ethical approval has been granted by the Health Research Authority in the UK. Dissemination of interim findings (non-inferential) will form a part of the improvement methodology and will be provided to participating centres at regular intervals, including near-real time feedback of key process measures. Inferential analyses will be published in the peer-reviewed literature, supported by a comprehensive multi-modal communications strategy including to patients, policy makers and academic audiences as well as clinicians.
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At the outset of the pandemic, SARS-CoV-2 was thought to present simply as persistent cough and fever. However, with time, the medical community noted a myriad of associated symptoms well-described in the literature. Medical complications were particularly common in elderly populations and many early publications described pneumonia, organ failure, acute respiratory distress syndrome, hypercoagulability/microthrombosis and superimposed bacterial/viral infections. There is, however, a lack of literature describing surgical complications of COVID-19 and as such little knowledge regarding safe surgical interventions. This case describes the presentation/management of a patient who developed COVID-19-associated necrotising pneumonia. Video-assisted thoracoscopy lobectomy was performed following CT demonstration of necrotising pneumonia. Pathological evaluation of the surgical resection specimen demonstrated the microarchitecture of a severely diseased COVID-19 lung-fibrosis. This case demonstrates the safe management of a necrotic lung using a minimal access approach in the context of COVID-19 infection.
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COVID-19 , Neumonía , Anciano , Humanos , Necrosis , Pandemias , SARS-CoV-2RESUMEN
Surgical approaches to major pulmonary resections have evolved from thoracotomy to multiportal video-assisted thoracoscopy (VATS) and subsequently uniportal VATS. The efficacy of this progress has been validated in a multitude of publications demonstrating reductions in complications, patient perception of pain, and postoperative length of stay. More recent advances include subxiphoid extrathoracic access and nonintubated, opioid-free anesthesia. Early publications have demonstrated promising results with respect to safety, technical feasibility, and enhanced recovery. However, there remains a paucity of literature relating to hybrid approaches comprising both subxiphoid and nonintubated, opioid-free anesthesia in the context of pneumonectomy. The current report is the case of a patient undergoing pneumonectomy. Both subxiphoid and nonintubated, opioid-free techniques were utilized. The authors describe preoperative workup, surgical and anesthesia-related caveats, and postoperative recovery. In conclusion, this approach is technically feasible, safe, and may be associated with enhanced recovery.
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Neoplasias Pulmonares , Cirugía Torácica , Analgésicos Opioides , Humanos , Neoplasias Pulmonares/cirugía , Neumonectomía , Cirugía Torácica Asistida por VideoRESUMEN
Hereditary multiple exostoses is a rare autosomal dominant condition resulting in the development of multiple osteochondromas. We present the case of a 25-year-old woman with hereditary multiple exostoses who was referred for thoracic surgery assessment due to severe right-sided chest pain. Computed tomographic scan allowed preoperative planning for resection of the lesion. Under general anesthesia, right video-assisted thoracoscopic surgery was performed through a cosmetic retromammary incision. Complete removal of the tumor resolved symptoms, and she was discharged 2 days later. We show that video-assisted thoracoscopic surgery with a cosmetically placed muscle-sparing incision allowed accurate resection with faster recovery.
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Neoplasias Óseas/cirugía , Exostosis Múltiple Hereditaria/cirugía , Lesiones Precancerosas/cirugía , Neoplasias Torácicas/cirugía , Adulto , Neoplasias Óseas/diagnóstico , Neoplasias Óseas/genética , Dolor en el Pecho/etiología , Aberraciones Cromosómicas , Exostosis Múltiple Hereditaria/diagnóstico , Exostosis Múltiple Hereditaria/genética , Femenino , Genes Dominantes , Humanos , Procedimientos Quirúrgicos Mínimamente Invasivos , Lesiones Precancerosas/diagnóstico , Lesiones Precancerosas/genética , Neoplasias Torácicas/diagnóstico , Neoplasias Torácicas/genética , Cirugía Torácica Asistida por Video , Tomografía Computarizada por Rayos XRESUMEN
This is a report of a 31-year-old male refugee, who was admitted to Intensive Therapy Unit after being found in severe chest pain after escaping extreme torture from his home country. He was found to have four nails in his thorax. These were removed using a subxiphoid video-assisted thorascopic surgery (VATS) technique. This technique allowed excellent visualization of the right, left and anterior mediastinal part of the chest and therefore preventing damage or injury to surrounding structures. This was particularly useful in a complex case such as this. By avoiding an intercoastal incision and intercostal manipulation, our patient had limited pain post-procedure facilitating an earlier aggressive mobilization program with potential benefit in terms of improved lung expansion, reduction of atelectasis and lung infections. With the right training, the technical challenges of using the technique should be overcome and thus the benefits of subxiphoid VATS will be offered to a larger portion of thoracic surgical patients.
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BACKGROUND: Uniportal video-assisted thoracoscopic surgery (VATS) although considered less invasive than the multi-port techniques, is still an intercostal approach, resulting in intercostal nerve injury. Recently, some surgeons have tried to address this problem by attempting a subxiphoid approach. The aim of our study was to assess and compare results between intercostal and subxiphoid uniportal VATS lobectomy in terms of postoperative pain and quality of life (QoL). METHODS: Patients from January 2014 to January 2018 undergoing subxiphoid and intercostal VATS lobectomy were prospectively assessed for pain and QoL at 1, 3, and 6 months following discharge. Postoperative pain was measured using a numeric rating scale (NRS) and QoL was assessed with the EuroQoL 5-dimension questionnaire (EQ5D). RESULTS: Eight hundred and thirty-three patients undergoing lobectomy were included: 373 in the intercostal VATS group and 459 in the subxiphoid group. The proportion of patients with moderate or worse clinical pain was significantly lower at 1 and 3 months after subxiphoid VATS (P<0.01) compared with intercostal VATS. QoL was significantly higher following subxiphoid VATS at these same time points (P<0.001). CONCLUSIONS: Uniportal subxiphoid VATS is a safe and feasible minimally invasive approach for undertaking pulmonary lobectomy that may result in reduced postoperative pain compared to conventional VATS. There may also be earlier return of QoL. A randomized controlled trial examining this further would provide further insight into our observations.
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A best evidence topic in cardiothoracic surgery was written according to a structured protocol. The question addressed was: Do patients undergoing pulmonary lobectomy using the non-intubated anaesthetic technique have superior clinical outcomes? Altogether, 324 papers were found using the reported search, of which 5 represented the best evidence to answer the clinical question. The authors, journal, date and country of publication, patient group studied, study type, relevant outcomes and results of these papers are tabulated. The non-intubated anaesthetic technique can be safely used in patients undergoing video-assisted thoracic surgery lobectomy. Low conversion rates to intubation are reported, and conversion has been safely managed with no associated morbidity or mortality reported. The technique has not been shown to impact on the incidence of postoperative complications. However, studies consistently demonstrate improved postoperative outcomes in terms of recovery from anaesthesia permitting earlier oral intake and mobilization which is associated with a reduced length of hospital stay.
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Anestesia , Intubación Intratraqueal , Neumonectomía , Complicaciones Posoperatorias/epidemiología , Cirugía Torácica Asistida por Video , Humanos , Incidencia , Tiempo de Internación , Neoplasias Pulmonares/cirugíaRESUMEN
We present the case of a 50-year-old woman with severe emphysema, who underwent subxiphoid uniportal video-assisted lung volume reduction surgery. Standard techniques include staged unilateral video-assisted thoracoscopic surgery and historically sternotomy and thoracotomy. Concerns that the subxiphoid incision may have impacted on the abdominal component of ventilation was considered; however, this was not the case, and pain control was excellent. The patient was discharged home after 3 days with no chest drain. Lung function and performance status have improved considerably.
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Pulmón/cirugía , Neumonectomía/métodos , Enfisema Pulmonar/cirugía , Cirugía Torácica Asistida por Video/métodos , Femenino , Humanos , Persona de Mediana Edad , Apófisis XifoidesRESUMEN
The subxiphoid approach to video-assisted thoracic surgery (VATS) has been introduced as an alternative to intercostal VATS. There is some evidence that avoiding intercostal incision and instrumentation leads to reduced pain and facilitates early mobilisation and enhanced recovery. Access of the pleural cavities and anterior mediastinal space through a subxiphoid incision presents some challenges, particularly when accessing posterior pulmonary lesions. With increasing experience, a large range of thoracic surgical operations performed through the subxiphoid approach have been reported including anatomical segmentectomies, thymectomies. Another attraction is that bilateral procedures can be performed through a single incision. The experience of several surgeons passing through the learning curve of subxiphoid VATS surgery has resulted in overcoming many of the early challenges faced. In this paper, a series of tips and tricks are presented to enable surgeons considering adopting this technique into their practice to do so safely and with an appreciation of the difficulties that they may face.
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OBJECTIVES: Because the mortality rate is very low in thoracic surgery, its use as a quality discriminator is limited. Acute kidney injury (AKI) is a candidate measure because it is associated with increased rates of morbidity and mortality and is partly preventable. The incidence of AKI after thoracic surgery is not well documented. We conducted an audit to determine the incidence and outcomes of AKI. This audit became a pilot project, and the results indicate the feasibility of a larger study. METHODS: Retrospective data on renal function post-thoracic surgery were collected at a tertiary cardiothoracic unit over 12 months. Renal impairment was classified according to the Kidney Disease Improving Global Outcomes criteria. RESULTS: Of 568 patients (mean = 59 ± SD 18; 38% women), AKI was diagnosed in 86 (15.1%) within 72 h post-thoracic surgery based on the Kidney Disease Improving Global Outcomes staging system (stage 1, n = 55; stage 2, n = 25; stage 3, n = 6). Significant differences were found in postoperative length of stay (3 vs 5 days; P < 0.001) of patients with and without AKI. There was a significant difference between the age groups of patients with and without AKI (P < 0.05) in the open surgical group but not in the group having video-assisted thoracoscopic surgery (VATS). There was no significant difference in the mortality rates between patients with and without AKI. CONCLUSIONS: The incidence of AKI after thoracic surgery was 15.1%. AKI was associated with longer hospital stays and was more likely in ≥60-year-old patients after open surgery than after VATS. Reducing AKI could improve patient outcomes. We propose that AKI may be a useful quality measure in thoracic surgery. We are developing a multicentre audit based on this approach.
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Lesión Renal Aguda/epidemiología , Complicaciones Posoperatorias/epidemiología , Procedimientos Quirúrgicos Torácicos/efectos adversos , Adolescente , Adulto , Factores de Edad , Niño , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Proyectos Piloto , Estudios Retrospectivos , Factores de Riesgo , Adulto JovenRESUMEN
Subxiphoid video-assisted thoracoscopic surgery (VATS) is a surgical approach in minimally invasive thoracic surgery that aims to aid enhanced recovery by reducing postoperative pain by avoiding instrumentation of the intercostal spaces. Access through a subxiphoid port presents challenges for both the surgeon and anaesthetist. Particularly for left sided procedures, the heart can be compressed resulting in arrhythmia and haemodynamic compromise. The anaesthetic team play an important role in ensuring the success of subxiphoid VATS procedures. The key is continuous and comprehensive monitoring for circulatory disturbance and arrhythmia intraoperatively. Should arrhythmia develop it is important that it is managed rapidly and effectively in such a manner to minimize haemodynamic disturbance. In this article, important considerations for anaesthesia in subxiphoid VATS procedures is presented and solutions presented.
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Lung cancer is a common disease and the leading cause of cancer-related mortality, with non-small cell lung cancer (NSCLC) accounting for the majority of cases. Following diagnosis of lung cancer, accurate staging is essential to guide clinical management and inform prognosis. Positron emission tomography (PET) in conjunction with computed tomography (CT)-as PET-CT has developed as an important tool in the multi-disciplinary management of lung cancer. This article will review the current evidence for the role of 18F-fluorodeoxyglucose (FDG) PET-CT in NSCLC diagnosis, staging, response assessment and follow up.
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BACKGROUND: Performing sublobar resection for early stage non-small cell lung carcinoma is becoming increasingly popular, with studies suggesting equivalent outcomes to lobectomy when sufficient lymph node sampling is performed. Furthermore, there has been a move to minimally invasive thoracic surgery facilitating enhanced recovery and reduced postoperative morbidity. The subxiphoid video-assisted thoracic surgery (SVATS) approach is a novel technique that is becoming increasingly popular, with evidence of reduced postoperative pain. Here, we report experience and the technique of performing segmentectomy by the uniportal SVATS approach. METHODS: The uniportal SVATS approach was used to perform all possible segmentectomies. Specific instruments were designed to facilitate performing surgery through this approach, and the operative technique is described and demonstrated with videos. RESULTS: Between September 2014 and April 2017, 242 segmentectomies were performed by uniportal SVATS. Twenty-nine of the patients underwent bilateral procedures. The mean duration of surgery was 2.14 ± 0.78 hours. Lymph node stations were accessible, and a mean of 4.00 ± 1.00 lymph node stations and 10.64 ± 3.38 lymph nodes were sampled. The mean postoperative hospital length of stay was 4.67 ± 9.54 days. Only 4 cases required conversion to thoracotomy, and 3 required conversion to full lobectomy. There were no perioperative deaths, with 30-day survival of 100%. CONCLUSIONS: This report demonstrates that the uniportal SVATS approach can be safely and effectively utilized to perform pulmonary segmentectomies. Our series demonstrates that it is possible to access and resect all segments by this novel approach to VATS.