Effectiveness of prophylactic levosimendan in patients with impaired left ventricular function undergoing coronary artery bypass grafting: a randomized pilot study.

OBJECTIVES: Perioperative low cardiac output syndrome occurs in 3-14% of patients undergoing isolated coronary artery bypass grafting (CABG), leading to significant increase in major morbidity and mortality. Considering the unique pharmacological and pharmacokinetic properties of levosimendan, we conducted a prospective, double-blind, randomized pilot study to evaluate the effectiveness of prophylactic levosimendan in patients with impaired left ventricular function undergoing CABG. METHODS: Thirty-two patients undergoing CABG with low left ventricular ejection fraction (LVEF ≤ 40%) were randomized to receive either a continuous infusion of levosimendan at a dose of 0.1 µg/kg/min for 24 h without a loading dose or a placebo. The primary outcome of the study was the change in the LVEF assessed with transthoracic echocardiography on the seventh postoperative day. Secondary outcomes included the physiological and clinical effects of levosimendan. RESULTS: All patients tolerated preoperative infusion of levosimendan well. The LVEF improved in both groups; this increase was statistically significant in the levosimendan group (from 35.8 ± 5% preoperatively to 42.8 ± 7.8%, P = 0.001) compared with the control group (from 37.5 ± 3.4% preoperatively to 41.2 ± 8.3%, P = 0.1). The cardiac index, SvO2, pulmonary capillary wedge pressure and right ventricular stroke work index showed a similar trend, which was optimized in patients treated with levosimendan. Moreover, an increase in extravascular lung water was noticed in this group during the first 24 h after surgery. CONCLUSIONS: This pilot study shows that prophylactic levosimendan infusion is safe and effective in increasing the LVEF postoperatively in patients with impaired cardiac function undergoing coronary surgery. This finding may be translated to 'optimizing' patients' status before surgery.

Minimally invasive extracorporeal circulation improves quality of life after coronary artery bypass grafting.

OBJECTIVES: The effect on postoperative health-related quality of life (HRQoL) after coronary artery bypass grafting (CABG) surgery with conventional cardiopulmonary bypass (cCPB) and off-pump surgery has been investigated extensively; however, there are no studies focusing on HRQoL after surgery with minimally invasive extracorporeal circulation (MiECC). Therefore, we sought to prospectively investigate the effect of MiECC on postoperative HRQoL when compared with cCPB in patients undergoing CABG over a short-term (3-month) follow-up period. METHODS: Sixty patients scheduled for elective CABG surgery were randomly assigned into two groups: those who had surgery on MiECC system (n = 30) and those who underwent CABG using cCPB (n = 30). Quality-of-life assessment was performed preoperatively (baseline-T0), at first postoperative month (T1) and at 3-month follow-up (T3). The RAND SF-36 scale was used for data collection, which included both sociodemographic and clinical characteristics of patients. The primary outcome of the study was quantitative measurement of postoperative HRQoL at 3-month follow-up. RESULTS: Both groups were balanced in terms of demographic, socio-economic and operative characteristics. At 3-month follow-up, mean SF-36 component and summary scores in each group were higher in absolute values than the respective mean baseline scores, apart from role-physical score in patients operated with cCPB. Patients operated on MiECC showed uniformly significantly higher values in all individual and summary domains, whereas patients operated on cCPB showed significant improvement in 6/8 individual domains. Patients operated on MiECC showed a more pronounced increase in SF-36 individual domain scores from the first to the third postoperative month when compared with cCPB, which was statistically significant regarding physical functioning (P = 0.001), role-physical (P < 0.001), vitality (P = 0.01) and role-emotional (P = 0.004). This resulted in a significant improvement in physical (P = 0.002) and mental (P = 0.01) summary scores. CONCLUSIONS: The current study proves that MiECC significantly improves HRQoL after coronary surgery compared with cCPB. This finding, combined with results from large-scale studies showing superior clinical outcomes from its use, enhances the role of MiECC as a dominant technique in coronary revascularization surgery.

Massive chest wall resection and reconstruction for malignant disease.

OBJECTIVE: Malignant chest wall tumors are rare neoplasms. Resection with wide-free margins is an important prognostic factor, and massive chest wall resection and reconstruction are often necessary. A recent case series of 20 consecutive patients is reported in order to find any possible correlation between tumor histology, extent of resection, type of reconstruction, and adjuvant treatment with short- and long-term outcomes. METHODS: Twenty patients were submitted to chest wall resection and reconstruction for malignant chest wall neoplasms between 2006 and 2014. The mean age (ten males) was 59±4 years. The size and histology of the tumor, the technique of reconstruction, and the short- and long-term follow-up records were noted. RESULTS: The median maximum diameter of tumors was 10 cm (5.4-32 cm). Subtotal sternal resection was performed in nine cases, and the resection of multiple ribs was performed in eleven cases. The median area of chest wall defect was 108 cm(2) (60-340 cm(2)). Histology revealed soft tissue, bone, and cartilage sarcomas in 16 cases (80%), most of them chondrosarcomas. The rest of the tumors was metastatic tumors in two cases and localized malignant pleural mesothelioma and non-Hodgkin lymphoma in one case. The chest wall defect was reconstructed by using the "sandwich technique" (propylene mesh/methyl methacrylate/propylene mesh) in nine cases of large anterior defects or by using a 2 mm polytetrafluoroethylene (e-PTFE) mesh in nine cases of lateral or posterior defects. Support from a plastic surgeon was necessary to cover the full-thickness chest wall defects in seven cases. Adjuvant oncologic treatment was administered in 13 patients. Local recurrences were observed in five cases where surgical reintervention was finally necessary in two cases. Recurrences were associated with larger tumors, histology of malignant fibrous histiocytoma, and initial incomplete resection or misdiagnosis made by nonthoracic surgeons. Three patients died during the study period because of recurrent disease or complications of treatment for recurrent disease. CONCLUSION: Chest wall tumors are in their majority mesenchymal neoplasms, which often require major chest wall resection for their eradication. Long-term survival is expected in low-grade tumors where a radical resection is achieved, while big tumors and histology of malignant fibrous histiocytoma are connected with the increase rate of recurrence.

Repair of post-intubation tracheoesophageal fistulae through the left pre-sternocleidomastoid approach: a recent case series of 13 patients.

OBJECTIVE: Post-intubation tracheoesophageal fistula (TEF) is a late complication of tracheotomy, while membranous trachea laceration during percutaneous dilational tracheostomy is implicated in the generation of early post-tracheotomy TEF. Surgical repair is the only viable option for these patients and the technique of repair depends on a variety of factors. METHODS: Totally 13 patients (mean age: 54.1±12.6 years; male: 8) with post-intubation TEF were managed between 2007 and 2013. The diagnosis was always made through esophagoscopy followed by endoscopic gastrostomy and bronchoscopy for repositioning of the tracheal tube just above the carina. Repair of the fistula was made in all patients through a left pre-sternocleidomastoid incision followed by dissection of the fistulous tract, suturing of esophagus and trachea and interposition of the whole pedicled left sternocleidomastoid muscle (SCMM) between the two suture lines. RESULTS: Five out of the 13 procedures were performed in mechanically ventilated patients; 3 of them died from septic complications during the postoperative period while fistula recurred in 1 of those 3 patients due to extensive inflammation of the tracheal wall. The rest 8 patients underwent fistula repair after weaning from mechanical ventilation and the results of repair were excellent. The additional procedure of temporary T-tube insertion was obviated in one patient to manage extensive tracheomalacia. CONCLUSIONS: The left pre-sternocleidomastoid incision is an excellent access for the repair of a post-intubation TEF without tracheal resection. The interposition of the whole left pedicled SCMM between the suture lines of trachea and esophagus avoids fistula recurrence and offers the best chance for cure.

Video-assisted thoracoscopic resection of a bronchogenic esophageal cyst.

Bronchogenic cysts are lesions of congenital origin derived from the primitive foregut. The usual presentation of bronchogenic cyst in the mediastinum is related to cyst infection or adjacent organs compression. A case of a bronchogenic esophageal cyst presenting with progressive dysphagia in a 46-year-old man is described. A video-assisted thoracoscopic excision was performed successfully. Details of the procedure are discussed.

Primary sternal tuberculosis mimicking anterior chest wall tumor: case report.

A case of a sternal mass mimicking a chest wall tumor and finally diagnosed as primary sternal tuberculosis is presented. Fine needle biopsy was inconclusive and surgery included excision and drainage of a large abscess in the soft tissues around the involved bone. Pathology revealed multiple granulomatous and necrotic lesions consistent with tuberculous osteomyelitis. On a 4-drug antituberculous regimen the patient is an excellent condition 6 months later.

Totally implantable central venous access ports. Analysis of 700 cases.

BACKGROUND AND OBJECTIVES: Vascular access has great importance in the treatment of patients submitted to prolonged chemotherapy. Purpose of this study is to assess the efficacy and safety of the percutaneous insertion and use of totally implantable central venous access ports (TICVAP). METHODS: During a 10-year period, 700 TICVAP were inserted into cancer patients for chemotherapy. Early and late complications and their management were recorded and analyzed. RESULTS: Of the 700 catheters implanted, 126 (18%) presented one or more types of early and late complication. Removal of 262 catheters was performed, of which 216 (82.4%) were elective indications due to the termination of the treatment and 46 (17.6%) resulted from complications that could not be controlled using clinical measures. In 280 patients (40%), the catheter remained functional until the patient's death, and 158 patients (22.5%) are still making use of their catheters for clinical treatment. CONCLUSIONS: The low rate of complications according to this study confirms the safety and convenience of the percutaneous insertion and use of TICVAP in patients undergoing prolonged chemotherapy regimens and explains the increasing use of these devices in current medical oncology practice.

Modified pleural tenting for prevention of anastomotic leak after Ivor Lewis esophagogastrectomy.

BACKGROUND: The most dangerous complication following esophagogastrectomy for esophageal cancer is anastomotic leakage. Surgical interventions described did not have a major impact in reducing the risk of occurrence. On the other hand, pleural tenting has been used for more than a decade by thoracic surgeons to prevent prolonged air leak after formal upper lobectomy with excellent results. METHODS: A retrospective analysis of 114 cases of esophagogastrectomy for cancer of esophagus or cardioesophageal junction is presented. Patients have been divided in 2 groups. In group B modified pleural tenting was used to prevent a potential anastomotic leak, while in group A, the control group, pleural tenting was not used. Evaluation of modified pleural tenting in preventing anastomotic leakage was the aim of the study. RESULTS: The pleural tenting group showed a significant decrease in anastomotic leak. In 1 patient versus 8 in group without pleural tenting the complication appeared (P = .032). The risk for an anastomotic leakage in group without pleural tenting was almost 9 times greater (odds ratio: 9.143, 95% confidence interval: lower bound 1.104, upper bound 75.708). The 30-day mortality, although lower in pleural tenting group, was not statistically significant. CONCLUSIONS: Pleural tenting is a safe, fast, and effective technique for prevention of anastomotic leakage after Ivor Lewis esophagogastrectomy. Subpleural blanketing of intrathoracic anastomosis could diminish the consequences of a possible anastomotic leak.

Primary pulmonary mucinous cystadenocarcinoma: a case report.

Primary pulmonary mucinous cystadenocarcinoma (PMCAC) is an extremely rare cystic neoplasm. A case of a 56-year-old male with a cystic lesion of the right lower lobe is described. Preoperative fine needle aspiration cytology and bronchoscopy were inconclusive. The patient underwent a formal right lower lobectomy and mediastinal lymph node dissection. Diagnosis was established intraoperatively. The biological behavior of primary PMCAC is unknown. Therefore, careful long-term follow-up is considered necessary because of lack of experience globally.

Giant mediastinal teratoma presenting with paroxysmal atrial fibrillation.

Mediastinum is a common site where benign tumors, like teratomas, can develop. Usually, these lesions do not cause any symptoms and the diagnosis is reached accidentally. As they enlarge they may cause symptoms by compressing the nearby structures of the thorax, mostly the trachea and the bronchi. Extrinsic compression of the heart or the great vessels appears to be a very rare occurrence. Atrial fibrillation as the first clinical presentation of left atrial compression by a giant mediastinal teratoma is extremely uncommon and very few cases have been described in the English literature.

Actinomyces israelii: a rare cause of thoracic empyema.

Actinomyces israelii usually causes chronic suppurative and granulomatous infections. Isolated pleural effusion due to Actinomycosis is rare. This report describes an unusual case of thoracic empyema caused by A. israelii with sudden onset and rapid deterioration that failed to respond to chest tube drainage and antibiotherapy. Empyema drainage and visceral parietal pleurectomy by a left postolateral thoracotomy proved to be of vital importance and a permanent solution.