Prognostic Impact of Node-Spreading Pattern in Surgically Treated Small-Cell Lung Cancer: A Multicentric Analysis.

OBJECTIVE: Although surgery in selected small-cell lung cancer (SCLC) patients has been proposed as a part of multimodality therapy, so far, the prognostic impact of node-spreading pattern has not been fully elucidated. To investigate this issue, a retrospective analysis was performed. METHODS: From 01/1996 to 12/2012, clinico-pathological, surgical, and oncological features were retrospectively reviewed in a multicentric cohort of 154 surgically treated SCLC patients. A multivariate Cox proportional hazard model was developed using stepwise regression, in order to identify independent outcome predictors. Overall (OS), cancer-specific (CSS), and Relapse-free survival (RFS) were calculated by Kaplan-Meier method. RESULTS: Overall, median OS, CSS, and RFS were 29 (95 % CI 18-39), 48 (95 % CI 19-78), and 22 (95 % CI 17-27) months, respectively. Lymphadenectomy was performed in 140 (90.9 %) patients (median number of harvested nodes: 11.5). Sixty-seven (47.9 %) pN0-cases experienced the best long-term survival (CSS: 71, RFS: 62 months; p < 0.0001). Among node-positive patients, no prognostic differences were found between pN1 and pN2 involvement (CSS: 22 vs. 15, and RFS: 14 vs. 10 months, respectively; p = 0.99). By splitting node-positive SCLC according to concurrent N1-invasion, N0N2-patients showed a worse CSS compared to those cases with combined N1N2-involvement (N0N2: 8 months vs. N1N2: 22 months; p = 0.04). On the other hand, the number of metastatic stations (p = 0.80) and the specific node-level (p = 0.85) did not affect CSS. At multivariate analysis, pN+ (HR: 3.05, 95 % CI 1.21-7.67, p = 0.02) and ratio between metastatic and resected lymph-nodes (RL, HR: 1.02, 95 % CI 1.00-1.04, p = 0.03) were independent predictors of CSS. Moreover, node-positive patients (HR: 3.60, 95 % CI 1.95-6.63, p < 0.0001) with tumor size ≥5 cm (HR: 1.85, 95 % CI 0.88-3.88, p = 0.10) experienced a worse RFS. CONCLUSIONS: In selected surgically treated SCLC, the long-term survival may be stratified according to the node-spreading pattern.

Tips and tricks in video-assisted thoracoscopic surgery lobectomy.

In 2012, open procedures represented 63% of the total number of lobectomies performed in our unit; in 2015, video-assisted thoracoscopic surgery (VATS) lobectomy numbers increased up to 66% of the total number of lobectomies performed. When carrying out the procedures, we followed the guidelines presented by the International VATS Lobectomy Consensus Group regarding indications, contraindications, preoperative investigations and conversions. In view of 280 VATS major lung resections from May 2012 to May 2016, we describe some tips and tricks that can be useful in this surgical technique, from general principles to single operative procedures.

Changes in myostatin signaling in non-weight-losing cancer patients.

BACKGROUND: Myostatin is a negative regulator of skeletal muscle mass. We recently demonstrated that myostatin expression is upregulated in an experimental model of cancer cachexia, suggesting that modulations of this pathway might play a pathogenic role in cancer-related muscle wasting. The present study was designed to investigate whether myostatin signaling is modulated in the muscle of non-weight-losing (nWL) patients with lung and gastric cancer. METHODS: Myostatin signaling was studied in muscle biopsies obtained during surgical procedure from nWL patients affected by gastric (n=16) or lung (n=17) cancer. Western blotting was applied to test both the total expression of myostatin and the expression of phosphorylated form of GSK-3beta and Smad2/3. RESULTS: In patients with gastric cancer, the expression of both myostatin and phosphorylated GSK-3beta (p-GSK3ß) were significantly increased. By contrast, in patients with lung cancer, myostatin levels were comparable to controls, whereas the expression of p-GSK3ß significantly decreased in patients with disease stage III/IV. CONCLUSIONS: Myostatin signaling is altered in nWL cancer patients. Different tumor types may give rise to different patterns of molecular changes within the muscle, which occur even before cachexia becomes clinically apparent.

Bubbles-in-the-chamber vs digital screen in chest drainage: A blind analysis of compared postoperative air leaks evaluation.

BACKGROUND: Chest drainage systems are affected by intra and inter-observer variability and poor sensibility in detecting minimal or apparent air leaks. OBJECTIVES: Overcome intra and inter-observer variability in detecting air leaks. METHODS: After surgery, a single apical chest tube was connected to the Drentech™ PalmEVO device and air leaks were checked twice a day by observation of both bubbles-in-the-chamber and digital data. RESULTS: On a total of 624 observations, disagreement between digital and traditional systems was recorded in 60(9.6%) cases. In 25(21.4%) patients, a disagreement was recorded. Overall, the digital evaluation influenced clinical management in 13(52%). In 10(40%) patients with temporary discordant features, the presence of high pleural fluid output led to a progressive final concordance. CONCLUSIONS: Disagreement between traditional and digital systems in checking air leaks is not negligible. Digital systems could give advantages in making an objective assessment of air leaks, standardizing the timing of chest tube removal.

The safety and feasibility of the simultaneous use of 180-W GreenLight laser for prostate vaporization during concomitant surgery.

OBJECTIVES: To explore the safety and feasibility of photo-selective vaporization of the prostate (PVP) with GreenLight XPS 180 Watt laser (GL-180- W XPS) combined with other surgical procedures. MATERIAL AND METHODS: Data on patients in whom GL-180-W XPS was performed to relieve lower urinary tract symptoms/ benign prostatic hyperplasia (LUTS/BPH) symptoms were extracted from a multi-institutional database (2011-2016). Patients were stratified into two groups. In the first all patients who had GL-180-W XPS with a concomitant procedure during the same surgical session were included as cases while those who underwent GL-180-W XPS PVP only were included as control. RESULTS: A total of 487 patients were included. Fifty-eight (11.9%) patients underwent concomitant procedures. Multivariable linear regression models failed to find an association between concomitant procedures and longer laser time (p = 0.4). Similarly, multivariable linear regression models failed to find an association between concomitant procedures and laser time even when the analyses were repeated and stratified into endoscopic (p = 0.6) and open/laparoscopic (p = 0.4) procedures. Multivariable logistic regression models failed to demonstrate any association between concomitant procedures and early complications (OR:1.39, CI: 0.379-2.44, p = 0.2), late complications (OR:1.84, CI:0.78-3.98; p = 0.1) and acute urinary retention (OR:1.84, CI:0.78-3.98; p = 0.1). When the analyses were repeated and the concomitant procedures stratified into endoscopic and open/laparoscopic ones, they yielded virtually the same results. CONCLUSIONS: GL-180-W XPS PVP could be safely performed in concomitant endoscopic or open/laparoscopic surgery. These results should be taken into consideration in the counseling of the patient who might choose to undergo simultaneous procedures.

National adoption of video-assisted thoracoscopic surgery (VATS) lobectomy: the Italian VATS register evaluation.

BACKGROUND: The expertise curve of video-assisted thoracoscopic surgery (VATS) lobectomies still stirs debate and controversy both because of the number of procedures to carry out and of the evaluation of the learning threshold. The purpose of our study was the examination of the variables related to the learning curve of the video-assisted approach, to establish what may be an expression of the technical maturity of the surgeon. METHODS: The National Register for VATS lobectomy built in 2013 was used to collect data from 65 Thoracic Surgery Units. Out of more than 3,700 patients enrolled, only information from Units with ≥100 VATS lobectomies were retrospectively analysed. Unpaired Student's t-tests, Fisher's exact tests, Pearson's χ2 were applied as needed. Cumulative summative analysis and one-way ANOVA were used to identify the expertise curve of VATS lobectomy. RESULTS: Ten institutions contributed a total of 1,679 patients, who were divided into three uniform groups according to the chronological sequence of surgery. The length of utility incision, the number of dissected lymph nodes and the operative time were not statistically significant (P=0.999, P=0.972 and P=0.307, respectively) among groups. Conversion to thoracotomy and postoperative air leaks occurred in 125 (7.44%) and 109 (6.49%) patients, gradually declined in Group 3 with statistical significance (P=0.048 and P=0.00086). CONCLUSIONS: The conversion rate and the percentage of air leaks seem to define the expertise of VATS lobectomy, being linked to the ability to manage more complicated surgical cases or intraoperative adverse events.

Current Practices in the Management of Pulmonary Ground-Glass Opacities: A Survey of SICT Members.

BACKGROUND: Several gray areas and controversies exist concerning the management of pulmonary ground-glass opacities (GGOs), and there is a lack of consensus among clinicians on this topic. One of the main aims of the Italian Society of Thoracic Surgery is to promote education and research, so we decided to perform a survey on this topic to estimate current trends in practice in a large sample of thoracic surgeons. METHODS: A total of 160 thoracic surgeons responded, namely, completed our questionnaire (response rate, 53%; 160 of 302). The survey was composed of 36 questions divided into six subsections: (1) demographic characteristics of the respondents; (2) terminology and taxonomy; (3) radiologic and radiometabolic evaluation; (4) diagnostic approach and indications for surgery; (5) surgical management; and (6) radiologic surveillance. RESULTS: We observed some divergence of opinion regarding the definition of mixed GGOs, the role of 18F fluorodeoxyglucose positron emission tomography and computed tomography scans, indications for nonsurgical biopsy, intraoperative techniques for localizing GGOs, indications for surgery, extension of lung resection and lymph node dissection according to the radiologic scenario, use of intraoperative frozen section analysis, and radiologic surveillance of pure GGOs. CONCLUSIONS: This topic warrants more investigation in the future. An upcoming consensus conference of Italian Society of Thoracic Surgery experts (also open to experts in other specialties) could provide updated indications for GGO management based on the literature, expert opinions, and the results of the present survey.

Modified transmanubrial osteomuscular sparing approach for resection of T1 vertebral tumor.

We report a technical modification of the classic transmanubrial osteomuscular sparing approach described by Grünenwald and Spaggiari for the treatment of a T1 vertebral tumor. The goal of the surgical treatment for spinal tumors of the cervico-thoracic area is to excise the vertebral tumor, reconstruct the spinal column, and place an internal fixation device to achieve immediate stabilization. The procedure was necessary for treating a patient who presented with an invasion of T1 vertebral body by multiple myeloma with initial neurological symptoms of epidural spinal cord compression. This approach requires a multidisciplinary team, essentially composed by the thoracic surgeon, who performs the anatomical dissection of the cervico-thoracic area, and the neurosurgeon, who performs the vertebrectomy and placement of a titanium prosthesis (Harm's cage). The operation was successful; the follow-up 6 months after the surgical procedure is normal.

Tracheal laceration after laser ablation of nodular goitre.

A tracheal perforation was discovered after Nd-YAG laser thermal ablation (LTA) of a thyroid nodule. The LTA is a relatively new method of treatment of thyroid nodules, which consists of delivering laser energy into the thyroid by means of two optical fibres. The patient presented with a multinodular goitre and initially refused surgery, then underwent an LTA of a thyroid nodule. Fifty days after the procedure she started to have symptoms related to a tracheal stenosis and, after tracheoscopy, a tracheal perforation was diagnosed and she underwent a total thyroidectomy plus tracheal repair. The results of the histological examination revealed a goitre with a focal area of papillary carcinoma. This particular complication is likely the first of its kind to be described after the LTA of a thyroid nodule.

Transmanubrial osteomuscular sparing approach: different indications.

The surgery of the cervico-thoracic inlet is a challenge for the thoracic surgeon. Several authors have described different approaches - with different degrees of invasiveness - to this anatomical area. We used the transmanubrial osteomuscular sparing approach described by Grünenwald and Spaggiari for six patients with five different indications: 1) left anterior Pancoast tumor; 2) glomus tumor originating from the inferior trunk (C8-T1 roots) of the right brachial plexus; 3) T1 vertebral tumor; 4) right internal jugular chain, Pirogoff confluence and subclavian artery metastatic lymph nodes from thyroid carcinoma; 5) chondrosarcoma of the first left rib. The results have been satisfactory from a surgical point of view, considering that the approach gave a good exposure of the operative field (especially at the cervical level), without cosmetic problems or functional limitations. In our experience, the transmanubrial osteomuscular sparing approach is a valid technique for the treatment of several kinds of tumors of the cervico-thoracic inlet, giving a good exposure of the operative field. In the case of anterior Pancoast tumors, the upper lobectomy may necessitate a further axillary thoracotomy, when fissural adherences are present.