Length of Nonoperative Treatment and Risk of Pleural Empyema in the Management of Pancreatitis-induced Pancreaticopleural Fistula

Pancreaticopleural fistula is a very uncommon complication of pancreatitis resulting from pancreatic duct disruption with leakage of pancreatic secretions into the pleural cavity. Initial conservative treatment fails in a significant number of cases. Ascending infection through the fistulous tract results in pleural empyema. The aim of this study is to investigate the relation between lengths of nonoperative management and risk of pleural empyema. The retrospective study includes our own experience as well as all case reports identified by a systematic review of the English literature from 1954 to 2012. Inclusion criteria were acute or chronic pancreatitis, whereas tumorous fistulization or complications of pancreatic surgery were kept out. A total of 113 patients were identified. There were 86 men and 27 women. The mean age was 46.5 years and 78 patients had a history of alcoholism. The mortality rate was 1.8 per cent (two of 113). Non-operative management including interventional therapy and endoscopic stenting was successful in only 40 cases (36%), whereas 73 patients (64%) finally underwent surgery. The most common procedure was distal pancreatectomy (32 of 73). Pleural empyema occurred in 17 cases. Successful nonoperative management had a mean length of 5.5 weeks, whereas surgery was performed after an average of 10.9 weeks of failed conservative efforts. Initial nonoperative therapy was significantly longer in patients eventually sustaining empyema (17 weeks, P < 0.001) and all needed surgical intervention. Prolonged nonoperative treatment is associated with a noteworthy risk of septic complications such as pleural empyema. Further improvement seems achievable by reducing the time gap between fruitless conservative efforts and surgical intervention.

Length of nonoperative treatment and risk of pleural empyema in the management of pancreatitis-induced pancreaticopleural fistula

Pancreaticopleural fistula is a very uncommon complication of pancreatitis resulting from pancreatic duct disruption with leakage of pancreatic secretions into the pleural cavity. Initial conservative treatment fails in a significant number of cases. Ascending infection through the fistulous tract results in pleural empyema. The aim of this study is to investigate the relation between lengths of nonoperative management and risk of pleural empyema. The retrospective study includes our own experience as well as all case reports identified by a systematic review of the English literature from 1954 to 2012. Inclusion criteria were acute or chronic pancreatitis, whereas tumorous fistulization or complications of pancreatic surgery were kept out. A total of 113 patients were identified. There were 86 men and 27 women. The mean age was 46.5 years and 78 patients had a history of alcoholism. The mortality rate was 1.8 per cent (two of 113). Nonoperative management including interventional therapy and endoscopic stenting was successful in only 40 cases (36%), whereas 73 patients (64%) finally underwent surgery. The most common procedure was distal pancreatectomy (32 of 73). Pleural empyema occurred in 17 cases. Successful nonoperative management had a mean length of 5.5 weeks, whereas surgery was performed after an average of 10.9 weeks of failed conservative efforts. Initial nonoperative therapy was significantly longer in patients eventually sustaining empyema (17 weeks, P < 0.001) and all needed surgical intervention. Prolonged nonoperative treatment is associated with a noteworthy risk of septic complications such as pleural empyema. Further improvement seems achievable by reducing the time gap between fruitless conservative efforts and surgical intervention.

Time trends and disparities in lymphadenectomy for gastrointestinal cancer in the United States: a population-based analysis of 326,243 patients

BACKGROUND

The value of lymphadenectomy in most localized gastrointestinal (GI) malignancies is well established. Our objectives were to evaluate the time trends of lymphadenectomy in GI cancer and identify factors associated with inadequate lymphadenectomy in a large population-based sample.

METHODS

Using the National Cancer Institute's Surveillance Epidemiology and End Results Database (1998-2009), a total of 326,243 patients with surgically treated GI malignancy (esophagus, 13,165; stomach, 18,858; small bowel, 7,666; colon, 232,345; rectum, 42,338; pancreas, 12,141) were identified. Adequate lymphadenectomy was defined based on the National Cancer Center Network's recommendations as more than 15 esophagus, 15 stomach, 12 small bowel, 12 colon, 12 rectum, and 15 pancreas. The median number of lymph nodes removed and the prevalence of adequate and/or no lymphadenectomy for each cancer type were assessed and trended over the ten study years. Multivariate logistic regression was employed to identify factors predicting adequate lymphadenectomy.

RESULTS

The median number of excised nodes improved over the decade of study in all types of cancer: esophagus, from 7 to 13; stomach, 8-12; small bowel, 2-7; colon, 9-16; rectum, 8-13; and pancreas, 7-13. Furthermore, the percentage of patients with an adequate lymphadenectomy (49 % for all types) steadily increased, and those with zero nodes removed (6 % for all types) steadily decreased in all types of cancer, although both remained far from ideal. By 2009, the percentages of patients with adequate lymphadenectomy were 43 % for esophagus, 42 % for stomach, 35 % for small intestine, 77 % for colon, 61 % for rectum, and 42 % for pancreas. Men, patients >65 years old, or those undergoing surgical therapy earlier in the study period and living in areas with high poverty rates were significantly less likely to receive adequate lymphadenectomy (all p < 0.0001).

CONCLUSIONS

Lymph node retrieval during surgery for GI cancer remains inadequate in a large proportion of patients in the USA, although the median number of resected nodes increased over the last 10 years. Gender and socioeconomic disparities in receiving adequate lymphadenectomy were observed.

Pancreaticopleural fistula-induced empyema thoracis: principles and results of surgical management

OBJECTIVE

Pancreaticopleural fistula is a very uncommon complication of pancreatitis resulting from pancreatic duct disruption with leakage of pancreatic secretions into the pleural cavity. Fistulization occurs either through the esophageal hiatus or straight through the diaphragm. Pleural effusion with dyspnea is the main presenting symptom, and delayed diagnosis is frequent. Initial conservative treatment fails in a significant number of cases. Ascending infection via the fistulous tract results in empyema and life-threatening sepsis.

METHODS

All patients who underwent surgery for pancreaticopleural fistula-induced empyema thoracis at a tertiary referral hospital from 2008 to 2011 were included in a retrospective case study.

RESULTS

Altogether six patients with pancreaticopleural fistula and associated pleural empyema were identified. All patients suffered from pancreatitis and received initial medical and endoscopic treatment. Despite all nonsurgical treatment efforts, superinfection led to left-sided pleural empyema in four and bilateral empyema in two cases. The contagious spread took place through the fistulous tract connecting the pancreatic duct with the pleural cavity. The patients were referred for surgery with considerable delay and already advanced pleural empyema. Minimally invasive thoracic surgery with pleural debridement was performed in all cases. Furthermore, left pancreatic resection was mandatory in five cases and cystostomy in one case. All patients recovered well and upon follow-up there were no further complications.

CONCLUSION

Surgical management combining minimally invasive thoracic surgery and removal of the fistulous tract is highly effective. If initial medical treatment fails, surgery should be considered early to prevent severe sepsis. Further improvement seems achievable by reducing the time between fruitless conservative efforts and surgical intervention.

Endoscopic stent insertion for anastomotic leakage following oesophagectomy

INTRODUCTION

Intrathoracic anastomotic leakage following oesophagectomy is a crushing condition. Until recently, surgical re-exploration was the preferred way of dealing with this life threatening complication. However, mortality remained significant. We therefore adopted endoscopic stent implantation as the primary treatment option. The aim of this study was to investigate the feasibility and results of endoscopic stent implantation as well as potential hazards and pitfalls.

METHODS

Between January 2004 and December 2011, 292 consecutive patients who underwent an oesophagectomy at a single high volume centre dedicated to oesophageal surgery were included in this retrospective study. Overall, 38 cases with anastomotic leakage were identified and analysed.

RESULTS

A total of 22 patients received endoscopic stent implantation as primary treatment whereas a rethoracotomy was mandatory in 15 cases. There were no significant differences in age, frequency of neoadjuvant therapy or ASA grade between cases with and without a leak. However, patients with a leak were five times more likely to have a fatal outcome (odds ratio: 5.10, 95% confidence interval: 2.06-12.33, p<0.001). Stent migration occurred but endoscopic reintervention was feasible. In 17 patients (77%) definite closure and healing of the leak was achieved, and the stent was removed subsequently. Two patients died owing to severe sepsis despite sufficient stent placement. Moreover, stent related aortic erosion with consecutive fatal haemorrhage occurred in three cases.

CONCLUSIONS

Stent implantation for intrathoracic oesophageal anastomotic leaks is feasible and compares favourably with surgical re-exploration. It is an easily available, minimally invasive procedure that may reduce leak related mortality. However, it puts the already well-known risk of stent-related vascular erosion on the spot. Awareness of this life threatening complication is therefore mandatory.

Surgical management of pleural empyema in the very elderly

INTRODUCTION

Parapneumonic pleural empyema is a critical illness. Age is an acknowledged risk factor for both pneumonia and pleural empyema. Furthermore, elderly patients often have severe co-morbidity. In the case of pleural empyema, their clinical condition is likely to deteriorate fast, resulting in life threatening septic disease. To prevent this disastrous situation we adapted early surgical debridement as the primary treatment option even in very elderly patients. This study shows the outcome of surgically managed patients with pleural empyema who are 80 years or older.

METHODS

The outcomes of 222 consecutive patients who received surgical therapy for parapneumonic pleural empyema at a German tertiary referral hospital between 2006 and 2010 were reviewed in a retrospective case study. Patients older than 80 years were identified.

RESULTS

There were 159 male and 63 female patients. The mean age was 60.5 years and the overall in-hospital mortality rate was 7%. Of the 222 patients, 37 were 80 years or older (range: 80–95 years). The frequencies of predominantly cardiac co-morbidity and high ASA (American Society of Anesthesiologists) grades were significantly higher for very elderly patients (p<0.001). A minimally invasive approach was feasible in 34 cases (92%). Of the 37 patients aged over 80, 36 recovered while one died from severe sepsis (in-hospital mortality 3%). There was no significant difference in mortality between the very elderly and the younger sufferers (p=0.476).

CONCLUSIONS

Early surgical treatment of parapneumonic pleural empyema shows excellent results even in very elderly patients. Despite considerable co-morbidity and often delayed diagnosis, minimally invasive surgery was feasible in 34 patients (92%). The in-hospital mortality of very elderly patients was low. It can therefore be concluded that advanced age is no contraindication for early surgical therapy.

Surgical therapy for necrotizing pneumonia and lung gangrene

OBJECTIVE

Necrotizing pneumonia, pulmonary abscess, and lung gangrene are rare complications of severe pulmonary infection with devitalization and sloughing of lung tissue. Pulmonary necrosis is often associated with alcoholism and other chronic disorders with known immunodeficiency. Mortality is significant and both treatment strategies as well as the role of surgery are controversially debated.

METHODS

In a retrospective review at a German tertiary referral hospital, 20 patients with pulmonary resection for necrotizing lung disorders were identified since 2008. At hospital admission, all patients suffered from pulmonary sepsis and despite adequate medical treatment progressing parenchymal destruction and devitalization took place. The majority of the patients sustained pleural empyema (13/20) and five patients a persisting air leak. On account of failing medical therapy, eight patients (40%) developed severe sepsis with septic shock and four patients (20%) were already preoperatively ventilated. Chronic alcoholism was present in 10 patients (50%).

RESULTS

Gangrene of a complete lung was seen in four cases. Lobar gangrene or necrotizing pneumonia complicated by fulminate abscess was seen in the right lower lobe (8/20), middle lobe (4/20), right upper lobe (2/20), and left lower lobe (2/20). Procedures included pneumectomy (4/20), lobectomy (13/20), and limited resection (3/20). The bronchial stump was reinforced with a pedicle muscle flap in seven cases. There were three postoperative deaths due to septic shock with multiorgan failure. The remaining 17 patients (85%) recovered well and were transferred to rehabilitation clinics specialized on pulmonary disorders.

CONCLUSION

Necrotizing pulmonary infections are infrequent but are life-threatening disease entities. Patients often present with severe comorbidity and chronic disorders causing immunodeficiency. If initial medical therapy fails surgery offers a reasonable therapeutic approach. Aim of surgical therapy is resection of all gangrenous lung parenchyma and effective drainage of pleural empyema. Then recovery is feasible in up to 80%.

[Newly recognized side-effects of proton pump inhibitors. Arguments in favour of fundoplication for GERD?]

Among other indications proton pump inhibitors (PPIs) are used as medical treatment of gastroesophageal reflux disease (GERD) and are the most frequently prescribed and most frequently used drugs in gastroenterology. Until recently PPIs were regarded as very safe and associated with very few side-effects. However, during recent years study results have revealed many severe adverse events associated especially with long-term PPI use. We review the currently available evidence, regarding the side-effects of PPIs and discuss the potential impact on treatment strategies for GERD (conservative treatment vs. antireflux surgery). Currently available data suggest that PPIs are associated with osteoporosis-related fractures, Clostridium difficile associated diarrhea (CDAD), community and hospital-acquired pneumonia, pharmacologic interaction with clopidogrel and acetylsalicylic acid with subsequent increased rate of cardiovascular events, refractory hypomagnesemia and rebound reflux symptoms etc. The risk-benefit ratio of PPIs is increasingly recognized as being less favourable. This leads to a more critical viewpoint and raises the question whether the side-effects of PPIs may outweigh the benefits, especially with long-term use. The side-effects of PPIs seem to make a strong argument in favour of laparoscopic fundoplication in the treatment of GERD.

Management of ERCP-related small bowel perforations: the pivotal role of physical investigation

BACKGROUND

Management of endoscopic retrograde cholangiopancreatography (ERCP)-associated duodenal perforation remains controversial. Some recommend surgery, while others recommend conservative treatment.

METHODS

A retrospective chart review was conducted to identify patients treated at our institution for ERCP-related duodenal perforations. Study variables included indication for ERCP, clinical presentation, diagnostic procedures, time to diagnosis and treatment, location of injury, management, length of stay in hospital and survival.

RESULTS

Between January 2000 and October 2009, 12 232 ERCP procedures were performed at our centre, and perforation occured in 11 patients (0.08%; 5 men, 6 women, mean age 71 yr). Six of the perforations were discovered during ERCP; 5 required radiologic imaging for diagnosis. Three perforations were diagnosed incidentally by follow-up ERCP. In 1 patient, perforation occurred 3 years after the procedure owing to a dislocated stent. Four of 11 perforations were stent-related; in 2 patients ERCP was performed in a nonanatomic situation (Billroth II gastroenterostomy). Free peritoneal perforation occurred in 4 patients; 1 was successfully managed conservatively. Four patients (36%) were treated surgically and none died. Five patients were managed conservatively with a successful outcome, and 2 patients died after conservative treatment (18%). Operative treatment included hepaticojejunostomy and duodenostomy (1 patient), suture of the perforation with T-drain (1 patient) and suture only (2 patients). The mean length of stay in hospital for all patients was 20 days.

CONCLUSION

Post-ERCP duodenal perforations are associated with significant morbidity and mortality. Immediate surgical evaluation and close monitoring is needed. Management should be individually tailored based on clinical findings only.

Management of anastomotic leakage-induced tracheobronchial fistula following oesophagectomy: the role of endoscopic stent insertion

OBJECTIVES

Tracheobronchial fistulas are rare but life-threatening complications after oesophagectomy. Leakage of the oesophagointestinal anastomosis with inflammatory involvement of the tracheobronchial tree is the predominant reason for postoperative fistulization between the airways and the oesophagus or the gastric tube. Successful management is challenging and still controversially discussed. After promising results in the treatment of intrathoracic anastomotic leaks, we adopted endoscopic stent implantation as the primary treatment option in patients with anastomotic leak-induced tracheobronchial fistula. The aim of this study was to investigate the feasibility, the limits and the results of this procedure.

METHODS

Between January 2004 and December 2010, 222 consecutive patients underwent oesophageal resection mainly for oesophageal cancer. An anastomotic leak-induced tracheobronchial fistula was bronchoscopically verified in seven patients. Four patients received endoscopic implantation of either a self-expanding tracheal or oesophageal stent or both as primary treatment. Surgical re-exploration was mandatory in 2 patients because of necrosis of the pulled-up gastric tube or gangrene of the airways. One patient was conservatively managed.

RESULTS

Endoscopic stent placement was successfully accomplished in all 4 patients. Two patients received an oesophageal stent, one patient a tracheal stent and one patient both an oesophageal and a tracheal stent. Closure of the fistula was achieved in all cases and 3 patients finally recovered while one died by reason of respiratory failure. In both surgical re-explored patients resection of the gastric tube was performed, and in one patient, because of subtotal gangrene of the right bronchial tree, emergency pneumectomy was also mandatory. Both patients died due to severe sepsis and respiratory failure. The one conservatively treated patient died from severe pneumonia.

CONCLUSIONS

Treatment of anastomotic leak-induced tracheobronchial fistulas by means of oesophageal and tracheal stent implantation is feasible. If stent insertion is limited by gastric tube necrosis or bronchial gangrene, the prognosis is likely to be fatal.

Cholecystectomy in the very elderly--is 90 the new 70?

BACKGROUND

Nonagenarians are the fastest growing sector of population across Western Europe. Although prevalence of gallstone disease is high, elective cholecystectomy is still controversial in this age group.

METHODS

A retrospective chart review was conducted of cholecystectomies done in patients over 90 years of age at our institution between 2004 and December 2009. During this period, a total of 3,009 cholecystectomies were performed on patients of all ages. Data collected included demographics, patient comorbidities, indications for surgery, type of surgery performed, intraoperative findings, histology, perioperative morbidity and mortality.

RESULTS

Twenty-two nonagenarians (18 females) underwent cholecystectomy during the study period. Of these patients, 19 patients (86%) had diabetes, 16 (73%) had hypertension, and 10 (45%) had coronary artery disease. Twenty patients (91%) underwent an emergency procedure. In two patients, cholecystectomy was indicated for non-resolving pain after attempted conservative therapy, only two patients were operated electively. Laparoscopic cholecystectomy was attempted in 13 patients (59%), 3 patients needed a conversion, and 9 patients (41%) considered unfit to undergo a laparoscopic approach had an open procedure. Mean operation time was 83 min. Histology showed gangrenous cholecystitis in six (27%) patients. The mean length of stay was 10 days (4-23 days). Two patients (8.3%) required intensive care following surgery. There were no common bile duct injuries, one patient had a cystic stump leak. One patient died in the postoperative period (4.6%). All patients with an emergency operation were classified as at least ASA III. Conversion rate, percentage of open procedures, percentage of advanced histology, ASA score, and hospital stay were significantly higher when compared to all patients.

CONCLUSION

Our study demonstrates that in unselected nonagenarians,cholecystectomy is safe with acceptable perioperative morbidity and mortality even as an emergency procedure. However, our data also suggests that cholecystitis appears to be a neglected condition in this age group.

Modern history of surgical management of lung abscess: from Harold Neuhof to current concepts

Harold Neuhof was one of the pioneers of thoracic surgery in the early decades of the last century. Inspired by his preceptor Howard Lilienthal he proposed an entirely new concept for surgery on acute lung abscess. The aim of his one-stage procedure was adequate drainage of the abscess cavity. His approach proved to be the first major breakthrough in the treatment of acute lung abscess. Therapy of pulmonary abscess was again radically changed by the advent of antibiotics in the late 1940s. However, the basic principles of Neuhof's concept still influence modern-day management of putrid lung abscess.

The tale of spring water cysts: a historical outline of surgery for congenital pericardial diverticula and cysts

Congenital pericardial diverticula and cysts are extremely uncommon lesions within the anterior mediastinum. Both lesions derive from the pericardial celom and represent different stages of a common embryogenesis. Initial reports date from the 19th century. Surgical pioneers were Otto Pickhardt, who removed a pericardial cyst at Lenox Hill Hospital in New York in 1931, and Richard Sweet, who accomplished the first resection of a pericardial diverticulum at Massachusetts General Hospital in Boston in 1943. These lesions were also called spring water cysts because they usually contain watery, crystal-clear fluid. This history outlines the milestones of evolving surgical management, from the first report in 1837 up to the present time.

[Early esophageal cancer: pro surgical resection]

Endoscopic methods are increasingly propagated as oncologically adequate and less invasive treatment modalities for early esophageal cancer compared to surgery. The superiority or equality of endoscopic treatment has, however, so far not been proven by controlled trials. Current guidelines and an analysis of recently published data support surgical resection and lymphadenectomy as the standard of care for early esophageal cancer. This is based on the following arguments: 1) a reliable complete tumor resection with clear margins in all directions (R0 resection) including removal of all precancerous and precursor lesions can currently only be achieved by surgical resection, 2) none of the currently available staging tools allows definitive exclusion of lymphatic spread. A potentially curative surgical lymphadenectomy should thus only be omitted in well-defined subgroups. 3) In experienced hands surgical resection and lymphadenectomy can be performed with low mortality and morbidity, 4) reproducible and reliable data on long-term recurrence-free survival and quality of life are currently only available for surgical series. Thus, endoscopic therapy for early esophageal cancer is an alternative to surgical resection with lymphadenectomy only in patients unfit for surgery and in strictly defined low-risk situations.

Thymoma within a giant congenital thymic cyst

Congenital thymic cysts are very rare and mostly asymptomatic mediastinal lesions. Thymoma within such cysts is even more uncommon and has so far hardly been described. We report on a 41-year-old male with a World Health Organization type B1 thymoma within the wall of a huge unilocular thymic cyst. Because of the possible coexistence of typical congenital thymic cyst and thymoma, we recommend surgical resection both for establishing the diagnosis and for definite treatment.

Risk of stent-related aortic erosion after endoscopic stent insertion for intrathoracic anastomotic leaks after esophagectomy

BACKGROUND

Intrathoracic anastomotic leakage after esophagectomy is associated with high morbidity and mortality. Because of disappointing results after surgical reexploration endoscopic stent implantation was introduced as primary treatment option with improved outcome. Aortoesophageal fistula is a very rare complication and has thus far only anecdotally been reported after esophagectomy. The aim of this retrospective study was to investigate if endoscopic stent implantation increases the incidence of postoperative aortoesophageal fistula by reason of stent-related erosion of the thoracic aorta.

METHODS

Between January 2004 and October 2010, 213 patients underwent esophageal resection mainly for esophageal cancer. An intrathoracic esophageal anastomotic leak was endoscopically verified in 25 patients. Seventeen patients received endoscopic implantation of a self-expanding stent as primary treatment. In 8 patients a rethoracotomy was mandatory.

RESULTS

After successfully accomplished endoscopic stent placement, complete closure of the anastomotic leak was radiologically proven in all 17 patients. In 13 cases, definitive closure and healing of the leak was achieved and the stent could subsequently be removed. In 1 patient, because of early recurrence of very malignant small cell cancer, the stent remained in situ. Three patients developed an erosion of the thoracic aorta with subsequent massive hemorrhage. The mean time between stent insertion and occurrence of aortoesophageal fistula was 26 days. All 3 patients died of exsanguination with severe hypovolemic shock. Postmortem examination confirmed an aortoesophageal fistula in each case.

CONCLUSIONS

While endoscopic stent implantation seems to be effective in the control of intrathoracic anastomotic leakage, nevertheless the incidence of aortoesophageal fistula caused by stent-related aortic erosion exceeds the thus far reported numbers. Awareness of this life-threatening complication after stent insertion is therefore mandatory.

Infected mediastinal bronchogenic cyst in a 12 year old girl

Bronchogenic cysts are an uncommon congenital malformation deriving from the primitive foregut. They are mainly unilocular, and respiratory distress is the most common presentation in pediatric patients. We describe the case of a 12-year-old girl with a huge infected mediastinal bronchogenic cyst which was resected via an axillary muscle-sparing thoracotomy.

Treatment of intrathoracic esophageal anastomotic leaks by means of endoscopic stent implantation

Intrathoracic anastomotic leakage in patients with esophagectomy is associated with high morbidity and mortality. Until recently surgical reexploration was the preferred way of dealing with this life-threatening complication. But mortality remained significant. After the first successful reports we adopted endoscopic stent implantation as a primary treatment option. The aim of this study was to investigate the feasibility and the results of endoscopic stent implantation. Between January 2004 and December 2009, 167 patients underwent an esophageal resection. Surgery was mainly the result of esophageal cancer. An intrathoracic esophageal anastomotic leak was endoscopically verified in 17 patients. Twelve patients received an implantation of a self-expanding stent as a primary treatment. An endoscopic stent placement was accomplished in all 12 patients. In nine patients a definitive closure of the leak was achieved and the stent could subsequently be removed. Two patients died due to severe sepsis in spite of sufficient stent placement. Because of early recurrence of very malign small cell cancer the stent remained in situ in one patient. In conclusion, stent implantation for intrathoracic esophageal anastomotic leaks is feasible and compares favorable with the results of surgical reexploration. It is an easily available minimally-invasive procedure which may reduce leak-related mortality and morbidity.

Treatment of intrathoracic esophageal anastomotic leaks by means of endoscopic stent implantation

Intrathoracic anastomotic leakage in patients with esophagectomy is associated with high morbidity and mortality. Until recently surgical reexploration was the preferred way of dealing with this life-threatening complication. But mortality remained significant. After the first successful reports we adopted endoscopic stent implantation as a primary treatment option. The aim of this study was to investigate the feasibility and the results of endoscopic stent implantation. Between January 2004 and December 2009, 167 patients underwent an esophageal resection. Surgery was mainly the result of esophageal cancer. An intrathoracic esophageal anastomotic leak was endoscopically verified in 17 patients. Twelve patients received an implantation of a self-expanding stent as a primary treatment. An endoscopic stent placement was accomplished in all 12 patients. In nine patients a definitive closure of the leak was achieved and the stent could subsequently be removed. Two patients died due to severe sepsis in spite of sufficient stent placement. Because of early recurrence of very malign small cell cancer the stent remained in situ in one patient. In conclusion, stent implantation for intrathoracic esophageal anastomotic leaks is feasible and compares favorable with the results of surgical reexploration. It is an easily available minimally-invasive procedure which may reduce leak-related mortality and morbidity.

Peripheral primitive neuroectodermal tumor of the thymus

Peripheral primitive neuroectodermal tumors (pPNET) are an extremely rare disease entity of malignant tumors belonging to the Ewing sarcoma family that usually occur in children and adolescents with a predilection for the truncal and axial soft tissue. Thoracopulmonary manifestation in children mostly involves the chest wall as a large tumorous mass or the posterior mediastinum. In adults these tumors are even more infrequent. We report about a 46-year-old woman with a pPNET of the thymus which infiltrated the pericardium. According to the English literature this is the first reported case both of a thymic pPNET and a pPNET arising in the anterior mediastinum. This illustrates that pPNETs belong to the differential diagnosis of neurogenic mediastinal malignancies not only in the pediatric age population but also in adults and even in so far unknown localizations like the anterior mediastinum.

The effect of ultrasound dissection in thyroid surgery

BACKGROUND

One of the most important aspects of thyroid surgery is hemostasis. The ultrasonically activated scalpel is described as a very useful instrument in thyroid surgery for the dissection and sealing of vessels. Our study compares the short-term results of endocrine surgery, with and without the use of ultrasonic devices.

METHODS

In a prospectively randomized trial, 96 patients with endemic goiter were operated by the same surgeon, one study group (n = 54 patients) being operated with the ultrasonic scalpel as an additional instrument. We measured the operating time, the number of ligatures needed as well as intraoperative and postoperative bleeding as surrogate markers for improvement of the surgical technique.

RESULTS

The ultrasound dissection technique significantly reduces surgery time (p = 0.048; ultrasound procedure average 68 min, conventional procedure average 83 min), intraoperative bleeding (p = 0.028) and the number of ligatures (p = 0.008; ultrasound procedure average 8.2, conventional procedure average 26.4).

CONCLUSIONS

The use of an ultrasonically activated scalpel significantly improves bleeding control during thyroid resections and may also be beneficial with respect to cost reduction. Clinical application and further studies to characterize its role are justified.