Can Preemptive Kidney Transplantation Guarantee Longer Graft Survival in Living-Donor Kidney Transplantation? Single-Center Study

Introduction

The benefit of preemptive kidney transplantation (KTx) for graft survival compared with nonpreemptive KTx is controversial.

Objective

To analyze the influence of preemptive KTx on graft survival.

Patients and Methods

The study included 476 of 531 patients who had undergone living-donor KTx between January 2000 and June 2007. Pediatric patients and those who had previously undergone KTx were excluded. Recipients were divided into 2 groups; group 1 included 413 patients (86.8%) who received grafts after institution of maintenance dialysis, and group 2 included 63 patients (13.2%) who underwent preemptive KTx.

Results

Donor type and HLA mismatch demonstrated significant differences between the 2 groups. Group 1 had more living donors and fewer HLA mismatches. Warm ischemia time in group 2 was significantly shorter than in group 1. The serum creatinine concentration in group 1 on postoperative day 7 was significantly higher than in group 2. Five- and 10-year graft survival in groups 1 and 2, respectively, were 95.3% and 81.3% vs 92.9% and 92.9%. Graft survival was not significant insofar as duration and method of dialysis. At our institution, independent risk factors for graft survival in living-donor KTx are primary end-stage renal disease, acute cellular rejection episodes, and recipient age.

Conclusion

We observed no benefit on graft survival in recipients of living-donor KTx insofar as whether they had undergone previous dialysis.     

Knowledge and attitudes toward organ/tissue donation and transplantation among health care professionals working in organ transplantation or dialysis units

Objective

To evaluate the awareness and attitudes of health care professionals toward organ/tissue donation and transplantation.

Methods

We included 309 health care professionals from 27 dialysis centers and eight organ transplantation centers in Istanbu in the present study conducted from April 2008 to August 2008. The 24-item questionnaire, including items concerning sociodemographic features and knowledge about and attitudes toward organ/tissue donation and transplantation, was applied by face-to-face interviews.

Results

An organ/tissue donation card was completed among 77% of subjects, while 90% were identified as supporting transplantation. The main reasons identified for lack of donation were lack of confidence (59.7%), fear of procurement (31.5%), and inappropriate use of harvested organs (18.1%).

Conclusion

In conclusion, targeting health care professionals in the first place and development of nationwide media and educational campaigns on the ethical, moral, as well as religious dimensions of transplantation and donation seem crucial to increase the number of individuals who can act as role models via their positive impact on the general public's attitudes toward organ donation.     

Does simultaneously transplanted pancreas improve long-term outcome of kidney transplantation in type 1 diabetic recipients?

Introduction

Simultaneous pancreas-kidney transplantation (SPK) is an alternative to kidney transplantation (KTx) for type 1 diabetic patients with end-stage kidney disease. However, a fair comparison of SPK and KTx is difficult because of significant differences in donor, recipient, and transplantation procedure parameters. The aim of this study was to compare the early and long-term outcomes of SPK versus KTx in southwest Poland.

Material and Methods

Thirty-five diabetic dialysis patients who had SPK and 64 patients who had KTx were included in the analysis.

Results

SPK recipients were younger (38 ± 6 years versus 42 ± 9 years) and received organs from younger donors (25 ± 7 versus 43 ± 12 years) compared to the KTx group. They had shorter kidney cold ischemia time (9 ± 2 hours versus 22 ± 7 hours) but worse HLA class II mismatches (1.4 ± 0.6 versus 1.0 ± 0.5). In the early postoperative period, three patients died from the SPK group and one patient died from the KTx group. Additionally, two SPK patients lost their pancreatic grafts, and five KTx patients lost their kidney grafts. One-year patient survival rates for the SPK and KTx groups were 88% and 98%, respectively, and 5-year, 81% and 93%, respectively. One-year kidney graft survivals rates for the SPK and KTx groups were 100% and 89%, respectively, and 5-years, 89% and 81%, respectively. One-year insulin-free survival among SPK patients was 90% and the 5-year survival rate was 76%. Excretory function of the transplanted kidneys was better among SPK group; however, the difference reached statistical significance only in posttransplant years 2 and 3: 63.5 ± 20.1 versus 50.3 ± 19.7 and 64.9 ± 12.9 versus 51.6 ± 21.8 mL/min/1.73 m² for SPK and KTx, respectively.

Conclusions

Normoglycemia in SPK recipients did not improve patient survival at 5 years. The worse HLA compatibility in the SPK group did not lead to impaired kidney graft survival compared to KTx. Better kidney graft function among SPK recipients probably resulted from a more restrictive donor selection.     

Transthoracic echocardiographic findings in patients with chronic kidney disease awaiting kidney transplantation

Background

The high prevalence of classic cardiovascular risk factors in patients undergoing dialysis therapy or transplantation is associated with a 3.5- to 50-fold higher risk than in the general population. The primary cause of death in transplant recipients is cardiovascular disease.

Objective

To report echocardiographic findings using a screening protocol to detect heart disease in candidates for kidney transplantation.

Methods

Between November 2005 and December 2009, we examined 356 patients using 2-dimensional color Doppler echocardiography.

Results

A high prevalence of left ventricular hypertrophy, left ventricular diastolic dysfunction, valvulopathy, and valve calcification was observed. There was a positive correlation between valve calcification and female sex, age (P < .001), duration of renal replacement therapy (P = .01), peripheral arterial disease (P = .02), cerebrovascular disease (P = .005), and high concentration of lipoprotein(a) (P = .02).

Conclusion

An echocardiographic study should be part of the initial evaluation in candidates for renal transplantation.     

Factors Associated With Changes in Coagulation Profiles After Living Donor Hepatectomy

Background

Hepatic resection may be associated with postoperative coagulopathy. However, there is limited information about the predictors affecting coagulopathy after donor hepatectomy. We evaluated the contributors of maximal changes in prothrombin time (PT), activated thromboplastin time (aPTT), and platelet count in the development of postoperative coagulopathy.

Methods

We retrospectively analyzed 864 living donors, all of whom received general anesthesia using desflurane, isoflurane, or sevoflurane. A coagulation derangement was defined as one or more of the following events postoperatively: peak PT >1.5 international normalized ratio (INR; highest quartile of PT), peak aPTT >46 seconds (highest quartile of aPTT), or nadir platelet count <100 × 10⁹/L. Factors were evaluated by univariate and multivariate logistic regression analysis to identify predictors of coagulopathy.

Results

Mean postoperative peak PT, peak aPTT, and nadir platelet count were 1.4 ± 0.2 INR, 43.8 ± 23.7 seconds, and 155.9 ± 37.3 × 10⁹/L, respectively, with 39.4% of donors being at the risk for coagulation derangement. Multivariate logistic regression analysis revealed that predictors of such derangement included anesthesia duration, remnant liver volume, and body mass index (BMI). However, coagulation derangement was not independently associated with age, gender, volatile anesthetics, central venous pressure, fatty change in the liver, estimated blood loss, or intraoperative hypotensive episodes.

Conclusion

We found that long anesthesia duration, low BMI, and small remnant liver volume were predictors of coagulation derangement. These results provide a better understanding of risk factors affecting changes in coagulation profiles after living donor hepatectomy.     

ABO-Incompatible Kidney Transplantation: First Cases in Turkey

Introduction

ABO compatibility has been believed to be necessary in kidney transplantation (Ktx) to prevent acute antibody-mediated rejection. However, developments in immunosuppression and immunoadsorption techniques have overcome acute antibody-mediated rejection caused by ABO incompatibility. Herein, we have presented the first ABO-incompatible Ktx cases in Turkey. All recipients did not have an ABO-compatible donor but presented significant dialysis inadequacy due to vascular access problems.

Method

Five dialysis patients with blood groups O or B underwent kidney transplantation from living related donors of blood group type A1 or AB between march 23, 2007 and August 16, 2007. All patients received Rituximab (375 mg/m²) at 3-4 weeks before the Ktx. Additionally, we started tacrolimus (0.15 mg/kg), mycophenolate mofetil (2 × 1 g), and simvastatin (1 × 20 mg) 1 week before the operation. Immunoadsorption therapy employing a specific filter (Glycosorbs) to remove anti-A or anti-B antibodies was continued until the titers were <1/4. After the Ktx, we again performed immunoadsorption if the anti-A or the anti-B antibody titer was >1/8 during the first postoperative week and >1/16 at the second postoperative week. We used 2 standard hemodialysis machines with a connection line to perform immunoabsorption and dialysis during the same session.

Results

Acute humoral and cellular rejection was not detected. During the follow-up 1 patient was lost due to a cardiovascular complication. Mean creatinine level was 1.1 ± 0.3 mg/dL. These first ABO-incompatible transplantation cases in Turkey suggest that this source may represent an effective approach to overcome the organ shortage.     

Heart Transplantation From Donors of Different ABO Blood Type

Introduction

ABO blood group compatibility between donors and recipients of heart transplants is required to reduce the risk of hyperacute rejection. Ideally, ABO-identical cardiac grafts should be used but transplantating using ABO compatible types allows reduced waiting times among recipients with rarer types without a significant increase in hyperacute rejection. However, previous reports have indicated that use of donors with minor ABO mismatches may adversely influence late outcomes, although more recent studies do not confirm this suggestion. Our purpose was to analyze this practice in our center.

Methods

We analyzed 121 patients who underwent heart transplantation between November 2003 and May 2008. One hundred nine patients (90.0%) received ABO-matched grafts (population 1 [P1]) and 12 (9.9%) received ABO-compatible grafts (population 2 [P2]). P1 included 60 group A, 44 group 0, and 5 group B patients; P2 included 5 group A, 5 group B, and 2 group AB patients. The populations did not differ statistically in age, gender, urgency status, surgical technique, ischemic time, donor features, or immunosuppression. They were assessed for left ventricle ejection fraction (LVEF), rejection, and mortality.

Results

There were no significant differences in total mortality (P1, 13.7%; P2, 8.3%), rejection grade ≥2R (P1, 21.1%; P2, 33.3%), or LVEF (6 months: P1, 65%; P2, 71%; 1 year: P1, 68%; P2, 69%).

Conclusion

Minor ABO mismatches did not adversely affect 1-year outcomes of heart transplantation. This practice may facilitate organ allocation for end-stage heart failure patients, thereby reducing waiting time for heart transplantation.     

Preoperative lornoxicam for pain prevention after tonsillectomy in adults

Study Objective

To evaluate the efficacy of preoperative lornoxicam on postoperative pain management following tonsillectomy.

Design

Prospective, randomized, double-blinded, placebo-controlled study.

Setting

King Fahd University Hospital.

Patients

40 adult, ASA physical status I and II patients scheduled for tonsillectomy.

Interventions

Patients were randomly allocated to two groups to receive either intravenous (IV) lornoxicam 16 mg (Group L) or saline as control (Group C) preoperatively. Anesthesia was induced using IV fentanyl and propofol, while endotracheal intubation was facilitated with rocuronium, and maintenance was accomplished using nitrous oxide and sevoflurane.

Measurements

Pain scores at rest and on swallowing, intraoperative bleeding, interval until first request for rescue diclofenac suppository, and total diclofenac dose given in the first 12 and 24 hours postoperatively were recorded. The frequency of postoperative complications including bleeding, hypoxia, nausea and vomiting also were observed.

Main Results

Pain scores at rest were significantly lower in Group L than Group C at all observation times. Similarly, pain scores on swallowing were lower in Group L during the first 4 postoperative hours. The maximum verbal pain scale (VPS) in the control group was 7 (5.75 - 8 median, interquartile range) and in the lornoxicam group, it was 4 (4 - 5 median, interquartile range) (P < 0.001). The total diclofenac dose during the immediate postoperative 12 hours was significantly lower in Group L than Group C (65 ± 24 mg vs. 20 ± 25 mg, respectively; P < 0.001). No significant differences were noted for intraoperative bleeding. The frequency of postoperative nausea and vomiting was similar in both groups.

Conclusion

Preoperative 16 mg lornoxicam was effective for immediate postoperative pain relief after tonsillectomy in adults.     

The outcome of heart transplantation in hepatitis C-positive recipients

Background

Clinical outcomes of heart transplantation (HTx) among recipients with chronic hepatitis C virus (HCV) infection are poorly understood especially in Asia. Therefore, this study evaluated these clinical outcomes.

Methods

Using retrospective chart review we collected data on 385 patients including 20 HCV-positive recipients at the time of transplantation. We obtained information on demographics features, serial transaminases, graft function, patient survival as well as the incidences of acute hepatitis and transplant coronary artery disease.

Results

Between 1987 and 2010, the 20 HCV-positive patients had a median age at transplantation of 52 years (range, 30-63). Seventeen were men and three women. All the patients were classified as Child-Pugh class A; two had cirrhosis prior to HTx. Over a mean follow-up of 63 months (range, 2 days to 187 months), there were 11 deaths, including two hospital mortalities and nine subsequent deaths. Only one mortality (5%) was related to Child-Pugh class C cirrhosis, despite liver transplantation. Among the other 19 deceased or surviving recipients, there was no evidence of hepatic dysfunction or hepatocellular carcinoma. Transplant coronary artery disease was detected in six patients (30%). There was no significant difference in Kaplan-Meier actuarial survival between the HCV-positive and HCV-negative recipients (P = .59).

Conclusions

There was no significant difference in patient survival or graft function between HCV-positive and HCV-negative HTx recipients. Additionally, HCV-positive recipients were not at an increased risk of hepatic failure or accelerated transplant coronary artery disease.     

Intestinal transplantation for short bowel syndrome secondary to gastroschisis

Background/Purpose

Gastroschisis is the most frequent cause of pediatric intestinal transplantation. This study reviews our experience of intestinal transplantation secondary to gastroschisis to elucidate those factors affecting the outcome of children with short bowel syndrome.

Methods

A retrospective review was performed for children who underwent intestinal transplantation for gastroschisis at the University of Miami between June 2003 and August 1994.

Results

Thirty-two transplants were performed in 28 children with gastroschisis during the study period. Associated intestinal anomalies were present in 22 infants (atresia [n = 14], volvulus [n = 3], and/or ischemia [n = 16]). Spontaneous prenatal closure of gastroschisis, a rare anomaly associated with bowel atresia and ischemia because of a very small abdominal defect, was seen in 9 patients. Most of the patients had a complicated course and required multiple abdominal surgeries before transplant. Fifteen (53.6%) patients are currently alive at a median follow-up of 23.5 months. Short-term survival rate has significantly improved in recent years.

Conclusions

Patients with complex gastroschisis and intestinal anomalies have a significant risk for progression to short bowel syndrome. Intestinal transplantation can be a lifesaving option and provides a satisfactory outcome for children with short bowel syndrome secondary to gastroschisis.     

Delayed graft function and long-term outcome in kidney transplantation

Background

There are still many controversies about the impact of delayed graft function (DGF) on kidney transplantation outcome. The aims of this study were to define factors associated with DGF and to ascertain the relative impact of DGF on kidney transplantation outcome, both in the early postoperative period and in long-term follow-up.

Patients and Methods

Four hundred kidney transplant recipients were reviewed to assess the clinical impact of DGF on long-term outcome.

Results

The overall prevalence of DGF was 24.3%. DGF was significantly associated with increasing recipient and donor age, duration of dialysis, and cold ischemia time. Patients with DGF displayed a significantly worse graft (P = .005) and patient (P < .001) survival compared with recipients with immediate function.

Conclusion

DGF is a frequent complication of renal transplantation and may be associated with a reduced graft and even patient survival. Strategies to prevent graft injury and, more specifically, DGF may be an important clue to provide a better long-term outcome in kidney transplantation.     

Quality of life after a subtrochanteric fracture: A prospective cohort study on 87 elderly patients

Background

The subtrochanteric fracture constitutes approximately 5-10% of all hip fractures. This particular fracture type, owing to its configuration and instability, poses significant challenges to the fixation method, especially in elderly patients with varying degrees of osteoporosis. There has been a gradual change in the operative techniques used to stabilise these fractures leading to the current widespread use of cephalomedullary nails. In contrast to the field of research on patients with the more common femoral neck and trochanteric fractures, few studies have evaluated the health-related quality of life (HRQoL) in patients with subtrochanteric fractures.

Objective

To report the long-term outcome for patients with subtrochanteric fractures treated with a cephalomedullary nail with special regard to the HRQoL.

Setting

Four university hospitals.

Design

A prospective cohort study with a 2-year follow-up.

Patients and methods

Eighty-seven consecutive elderly patients with a subtrochanteric fracture treated with a cephalomedullary nail. Main outcome measurements were mortality rate, reoperation rate, pain at the hip, walking ability, activities of daily living (ADL) function and HRQoL assessed with the EQ-5D (EQ-5D_index score).

Results

The EQ-5D_index score decreased from 0.73 before fracture to 0.53 at 4 and 12 months and to 0.52 at 24 months. At the final follow-up 80% of the patients reported no or only limited pain at the hip, 46% had regained their prefracture walking ability, 48% their prefracture level of ADL function and 71% had living conditions similar to those before the fracture. The reoperation rate was 8%. The mortality rate was 8% at 4 months, 14% at 12 months and 25% at 24 months.

Conclusions

A subtrochanteric fracture in elderly patients had a substantial negative effect on both their short and long-term HRQoL. Although pain at the hip was not a major problem there was an obvious deterioration in walking ability and ADL function. However, the rate of revision surgery was comparatively low which confirms that the cephalomedullary nail constitutes a safe treatment for elderly patients with a subtrochanteric fracture. The data on HRQoL obtained in this study can be used in future healthcare evaluations and to calculate quality-adjusted life-years (QALYs).     

Living-donor hepatectomy

Background

Organ transplantation from deceased donors is still far below the need. Because of this deficiency, liver transplantations are performed mostly from live donors in many transplant centers in our country. Living-donor liver transplantation (LDLT) has evolved dramatically over the past decade. The aim of this study was to present our clinical experience with living-donor hepatectomy.

Methods

We retrospectively analyzed all patients who underwent donor hepatectomy between March 2000 and September 2010. We reviewed demographic data, operation type, operation and cold ischemia times, duration of hospital stay, and postoperative complications.

Results

During the study period, 140 living donors underwent operations for liver transplantation. We performed 108 right hepatectomies, 17 left hepatectomies, and 15 left lateral hepatectomies. The mean age of the donors was 30.8 years. There was no operative or postoperative mortality. Overall morbidity rate was 13.57% (n = 19). Nine patients had biliary leakages, 4 biliomas; 2 urinary tract infections, and 1 each inferior vena caval injury, pneumonia, portal vein thrombosis, and acute tubular necrosis. Reoperation was not required in any of these patients.

Conclusions

Living-donor liver transplantation is a valuable alternative for patients awaiting a cadaver organ. Live-donor hepatectomy can be performed with low morbidity. The greatest disadvantage of this procedure is the risk of the surgical operation for the individual who will experience no medical benefit from this procedure.     

Strategies for Maximizing Heart and Lung Transplantation Opportunities in Japan

Introduction

Because the donor shortage is extremely severe in Japan because of a strict organ transplantation law, special strategies must be established to maximize heart transplantation (HTx) and lung transplantation (LTx) opportunities. The purpose of this study was to review our strategies to identify and manage heart and lung donors.

Method

Transplantation doctors themselves assessed their own donor heart and lung function before starting the procurement operation; skillful staff surgeons harvested the organs. Since November 2002, a special transplantation consultant doctor assessed donor organ function to identify useful organs and intensively cared for the donor to improve cardiac and lung function.

Results

Only 63 brain-dead donors have been available in Japan. However, 49 HTx (77.7%) and 39 LTx (19 bilateral and 20 single) were performed from 36 donors (57.1%). Thirty-six HTx donors were marginal, requring sustained high doses of inotropes (n = 26), low left ventricular ejection fraction (n = 5), cardiopulmonary resuscitation (n = 15), and age older than 55 years (n = 6). Twenty LTx donors had infected sputa or showed pneumonia using chest X-ray. None of 49 HTx recipients died of primary graft failure (PGF). Patient survival at 3 years after HTx was 98.0%. Although 5/39 LTx died early, including 2 of PGF, patient survival rate at 3 years was 66.9%.

Conclusion

Although the number of cases was still small, the availability of hearts and lungs has been high and the transplantation outcomes were acceptable. These strategies may be useful to maximize HTx/LTx opportunities.     

Simultaneous Pancreas-Kidney Transplantation in a Human Immunodeficiency Virus-Positive Recipient: A Case Report

Background

After the development of highly active antiretroviral therapy (HAART) for patients with human immunodeficiency virus (HIV), there has been increased interest in organ transplantation for this selected population. There is a lack of reports about pancreas transplant in HIV+ recipients.

Case Report

We report the case of a 43-year-old HIV+ man who presented with type 1 diabetes for 25 years and end-stage-renal disease. He underwent dialysis therapy for the prior 3 years. His CD4 count was 830 cells/mL and a negative viral load was achieved after 3 months of antiretroviral therapy. His nutritional status was favorable; no opportunistic infections had occurred. A simultaneous pancreas-kidney transplantation (SPKT) was performed from a 19-year-old deceased trauma victim. Pancreas implantation was enteric-portal drainage. No induction immunosuppression was used, but rather tacrolimus, sodium mycophenolate, and steroids. In the postoperative period, there was a delayed kidney graft function requiring hemodialysis for 14 days. On postoperative day 11, a kidney biopsy specimen showed mild rejection, which was successfully treated with steroids. The patient was discharged after 22 days; he was normoglycemic and insulin-independent with a serum creatinine value of 1.9 mg/dL. Currently, his outcome has been uneventful, without a readmission or opportunistic infections. After 5 months postoperation, the viral load is negative and the CD4 count is 460 cells/mL. The current serum creatinine level is 1.1 mg/dL; no insulin has been required.

Comment

HIV has been considered to be an absolute contraindication to organ transplantation, because of the infection risk due to severe immunosuppression, to interactions between antiretroviral and immunosuppressive drugs, and to reluctance to offer an organ to a terminal patient. However, transplants in HIV+ patients have shown good results, when a patient has an acceptable CD4 level, a low viral load, and minimal antiretroviral therapy.     

Simplified treatment of postoperative mediastinitis

Background

Wound infection after median sternotomy for cardiac or thoracic surgery is a serious complication. A variety of treatment plans have been advocated, and there is lack of agreement regarding the best treatment method. We present our results in patients with mediastinitis who have been treated in a simple, consistent manner.

Methods

We reviewed our experience with 40 consecutive patients with mediastinitis who were treated between January 1995 and May 2003 with a single-stage treatment consisting of sternal and soft tissue debridement and wound closure over mediastinal tubes with continuous irrigation and drainage. Tubes were placed posterior to the sternum in all patients and were irrigated continuously for at least 7 days with antibiotic or antibacterial solution. Systemic antibiotics were selected based on culture and sensitivity data and were administered for 2 to 6 weeks.

Results

All patients with mediastinitis treated in this manner survived. Of the 40 patients, 38 achieved complete healing of the wound without further operative intervention or major complication. One patient had recurrent infection and required sternal resection and advancement of muscle flaps. One patient had a residual localized focus of chondritis and underwent limited resection of cartilage.

Conclusions

In this series of patients with postoperative mediastinitis, a simplified approach consisting of wound debridement, reclosure over drains, and anterior mediastinal irrigation has been an effective treatment. The results we have achieved suggest that this technique may be a suitable option for treating this condition.     

Combined Heart and Kidney Transplantation: Long-Term Analysis of Renal Function and Major Adverse Events at 20 Years

Background

Combined heart-kidney transplantation (HKTx) is an accepted therapeutic option for patients with end-stage heart disease associated with severely impaired renal function. We report our long-term follow-up with this combined procedure.

Patients and methods

Between April 1989 to November 2009, nine patients underwent combined simultaneous (HKTx) at our center. Seven patients were males (mean age 45.2 ± 10.12 years); seven patients were on dialysis at the time of transplantation.

Results

Surgical procedures were uneventful in all patients. One patient died in the intensive care unit 41 days after transplantation. During long-term follow-up, three patients died: one due to infection and multiorgan failure 148 months after HKTx, one due to a lung neoplasm after 6 years, and one, a cerebral stroke at 34 months after transplantation. Only one patient experience renal allograft failure secondary to hypertension and cyclosporine nephrotoxicity at 10 years after HKTx with the need for renal replacement therapy. Last estimated glomerular filtration rates of all other patients was 61.3 ± 17.4 mL/min.

Conclusions

In selected patients, with coexisting end-stage cardiac and renal failure, combined HKTx with an allograft from the same donor proved to give satisfactory short- and long-term results, with a low incidence of both cardiac and renal allograft complications.     

Postoperative bowel obstruction after laparoscopic and open appendectomy in children: a 15-year experience

Purpose

The purpose of the study was to determine and evaluate the incidence of postoperative bowel obstruction (PBO) after laparoscopic and open appendectomy in children.

Material and Methods

The medical files of children who have undergone an appendectomy, either via the laparoscopic or open approach, at our department from 1992 until 2007 were reviewed. Collected data included age at appendectomy, initial surgical approach, time interval to PBO, and type of definitive treatment. The incidences of PBO after laparoscopic and open appendectomy were compared with the χ² analysis.

Results

From the 1684 children who were found, 1371 had nonperforated appendicitis and 313 had perforated appendicitis. Laparoscopic appendectomy was performed in 954 patients of the nonperforated group and in 221 of the perforated group. Open appendectomy was performed in 417 and 92 patients of the 2 groups, respectively. Overall, the incidence of PBO development was 2.2%. In the laparoscopic appendectomy population, a significantly low incidence of 1.19% of PBO development was detected, compared with the 4.51% of the open appendectomy group (P < .0001).

Conclusion

Laparoscopic appendectomy diminishes the potential of PBO development. The overall incidence of PBO is not related to the severity of the disease but only to the initial operative approach.     

Video-assisted thoracoscopic surgery of mediastinal bronchogenic cysts in adults: a single-center experience

Background

Mediastinal bronchogenic cysts are rarely diagnosed in adults, hence surgical experience is limited particularly with regard to video-assisted thoracoscopic surgery. In support of the thoracoscopic approach we report our single-center experience in this rare entity.

Methods

Between June 1995 and December 2002, a nonselected series of 12 consecutive patients presenting with mediastinal bronchogenic cysts underwent video-assisted thoracoscopic surgery. Six cysts (50%) had been diagnosed 2 to 22 years prior, only three of which became symptomatic. In asymptomatic patients (n = 7) surgery was performed because of increasing cyst size (n = 3), patient's request (n = 3), or suspected metastasis (n = 1).

Results

Mediastinal bronchogenic cysts were correctly diagnosed by computed tomography in 83% (10/12) and by magnetic resonance imaging in 100% (9/9). Using a three-trocar technique thoracoscopic surgery was successfully performed in 11 of 12 cases (92%). We noted no signs of acute cyst infection. No serious postoperative complications were observed. In 1 patient conversion to open thoracotomy was necessary due to extensive pleural adhesions. In another case thoracoscopic excision of the cyst wall was incomplete. Patients with thoracoscopic excision were discharged after a median of 5.5 days (range 4 to 14 days). No recurrences or complications were observed during a mean follow-up of 40.5 months.

Conclusions

Considering the low conversion and complication rate in our series, video-assisted thoracoscopic surgery should be the primary therapeutic choice among adults with symptomatic mediastinal bronchogenic cysts. Surgical intervention in patients with asymptomatic and uncomplicated cysts appears optional.     

The dominant sequence types of vancomycin-resistant Enterococcus faecium among transplantation ward patients

Objectives

Vancomycin-resistant enterococci (VRE) frequently cause therapeutic problems and provide information about the epidemiological condition of the ward.

Materials and Methods

VRE isolated from patients on transplantation wards in 2007-2008 were compared using 2 molecular methods: RFLP-PFGE (restriction fragment length polymorphism-pulse field gel electrophoresis) and MLST (multilocus sequence typing).

Results

The analysis covered 29 Enterococcus faecium strains resistant to glycopeptides, each from a different patient. All organisms were typed using 2 molecular methods. MLST results were compared with an international base. The 30 examined strains belonged to 8 different worldwide known sequence types. All could be recognized as representatives of a single clonal complex CC17.

Conclusion

Both methods of typing appeared to be useful to asses the epidemiological condition of the investigated wards.