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1.
B. Ren 《Transplantation proceedings》2010,42(7):2786-2788
Objective
The aim of this study was to develop a porcine model of left single lung auto-transplantation.Methods
Eighteen 50-kg male domestic pigs underwent left pneumonectomy and lobar lung auto-transplantation (left lower lobe). Each animal was allocated to a perfusion protocol during surgery: group I, cold saline (n = 6); group II, cold heparin (n = 6); and group III, cold Euro-Collins (n = 6). We measured changes of partial pressure of oxygen in pulmonary vein blood (PvO2), partial pressure of carbon dioxide in pulmonary vein blood (PvCO2), lung compliance, and mean pulmonary artery pressure.Results
The postoperative survival rate was 100%. PvO2, PvCO2, mean pulmonary artery pressure, and lung compliance of the left lower lobe showed a significant difference between the saline and the heparin groups or the Euro-Collins group (P < .05), whereas there was no significant difference between the heparin and the Euro-Collins groups.Conclusion
Compared with other species, humans and pigs show remarkable anatomical and physiological similarity. It is useful experimental animal model to evaluate pulmonary function and grafting protocols following lobar lung transplantation. 相似文献2.
Danzer E Davey MG Kreiger PA Ruchelli ED Johnson MP Adzick NS Flake AW Hedrick HL 《Journal of pediatric surgery》2008,43(10):1767-1775
Objective
The aim of this study is to examine structure of lung parenchyma (Pp) and muscularization of pulmonary arterioles (PAs) in human fetuses that underwent tracheal occlusion (TO) therapy for severe congenital diaphragmatic hernia (CDH).Material
Fifteen fetuses underwent TO, with 5 survivors (Am J Obstet Gynecol. 2000:183;1059-1066). Paraffin-embedded lung specimens from 7 of 10 nonsurvivors (CDH-TO) and 6 age-matched fetuses (CDH) were available for morphometric analysis, which included measurements of point fraction of lung Pp and surface density. The PAs were categorized according to external diameter (<70 μm and 70 ≤ 140 μm). Percent medial wall thickness (%MWT) was calculated by dividing raw measurements of MWT by external diameter.Results
Gestational age at TO was 27.6 ± 0.9 weeks with a mean duration of TO of 32.6 ± 6.8 days. Gestational age at delivery (CDH-TO 31.9 ± 0.9 vs CDH 35.4 ± 1.8 weeks; P = .18) and postnatal survival time (CDH-TO 20.5 ± 6.0 vs CDH 18.6 ± 7.8 days; P = .85) were not significantly different between groups. Tracheal occlusion significantly increased the lung-to-body weight ratio (CDH-TO 13.0 ± 2.2 vs CDH 6.6 ± 0.9; P = .02). Tracheal occlusion tended to decrease right-lung Pp (CDH-TO 54.6% ± 2.6% vs CDH 65.7% ± 5.9%; P = .05), whereas left-lung Pp was not different between groups (CDH-TO 63.0% ± 3.5% vs CDH 66.7% ± 4.1%; P = .51). Surface density of airspaces was not different between groups in either left (CDH-TO 171.3 ± 16.1 cm−1 vs CDH 151.1 ± 8.1 cm−1; P = .34) or right (CDH-TO 172.0 ± 10.6 cm−1 vs CDH 160.8 ± 3.6 cm−1; P = .33) lungs. The %MWT in small and large PA was similar between groups.Conclusions
Open prenatal TO in human fetuses increased lung growth, as evidenced by an increase in lung weight, but did not improve parenchymal structure or muscularization of PAs. 相似文献3.
Background
There is uncertainty regarding the optimal approach for surgical placement of peritoneal dialysis (PD) catheters in children. Operative technique, catheter selection, and patient variables (eg, age or prior surgical history) may influence catheter lifespan.Methods
A retrospective review of all PD catheters placed at a tertiary children's medical center during a 6-year period was performed. Our primary outcome was catheter function 2 months after placement. Data were analyzed using Student 2-tailed t test or χ2 analysis.Results
There were 121 PD catheters placed in 81 patients. The median primary functional catheter lifetime was 109 days. Primary PD catheter failure (within 2 months) occurred in 36 catheters (30%). Patients with primary catheter failure (8 ± 7 years) were younger than patients with a functioning catheter at 2 months (12 ± 5 years; P = .002). Catheters placed without simultaneous omentectomy were more likely to fail (P = .042). Catheter failure rate was not significantly different based upon operative technique or catheter type.Conclusion
Omentectomy at the time of catheter placement decreased the risk of early catheter failure. In contrast, type of catheter or laparoscopic placement did not influence the likelihood of early catheter failure. 相似文献4.
Cassius Iyad Ochoa Chaar 《American journal of surgery》2009,198(5):623-627
Background
Patients undergoing abdominal aortic aneurysm (AAA) repair have high rates of postoperative malnutrition. We examined whether endovascular aneurysm repair (EVAR) is associated with reduced postoperative malnutrition compared with open AAA repair.Methods
The records of patients undergoing AAA repair in the Veterans Affairs (VA) Connecticut Healthcare System were reviewed. Primary outcomes were 30-day morbidity, lengths of hospitalization and intensive care unit stay, duration of intubation, and nutritional risk index scores.Results
Sixty-two patients were included (open repair, 37; EVAR, 25). Nutritional parameters were comparable between groups before surgery. Patients treated with EVAR had improved postoperative nutritional profiles as determined by albumin level (3.7 ± .08 vs 3.2 ± .12; P = .003), and nutritional risk index (97.9 ± 1.3 vs 88.9 ± 1.8; P = .0006), compared with patients treated with open repair.Conclusions
Patients undergoing EVAR developed significantly less postoperative malnutrition compared with those having open repair. EVAR may be a strategy to avoid malnutrition and improve outcomes in patients at risk for malnutrition after undergoing AAA repair. 相似文献5.
Background
Hyperlipidemia and particularly low-density lipoprotein cholesterol (LDL-C) have been proposed as independent risk factors predisposing to chronic allograft nephropathy.Objective
The primary objective of this prospective randomized study was to evaluate the efficacy of the modified National Cholesterol Education Program (NCEP) Step I Diet to prevent posttransplantation hyperlipidemia. The secondary objective was to assess the impact of fluvastatin on the lipid profile of patients unresponsive to dietary measures.Methods
The study population consisted of 143 consecutive patients who underwent transplantation between October 1998 and January 2005. Patients who failed to demonstrate total and LDL-C levels below the optimal values of 200 mg/dL and 130 mg/dL respectively, were recruited for fluvastatin treatment. The remaining patients who achieved and maintained the target lipid levels continued on the same dietary regimen.Results
Baseline demographic characteristics were not different among the fluvastatin and modified Step I Diet groups. Mean total cholesterol (231.2 vs 187.3 mg/dL; P < .000), LDL-C (134.5 vs 99.2 mg/dL; P < .000), high-density lipoprotein cholesterol (HDL-C; 62.9 vs 55.7 mg/dL; P = .012), and triglyceride (170.3 vs 138.7 mg/dL; P = .011) levels following the dietary run-in period were significantly different between the patients assigned to fluvastatin treatment and those left on the diet, respectively. Fluvastatin achieved reductions ranging from 12% to 14% in the concentrations of total cholesterol (231.2 ± 4.29 mg/dL to 202.7 ± 3.89 mg/dL; P < .000) and LDL-C (134.5 ± 3.53 mg/dL to 115.6 ± 3.18 mg/dL; P < .000) among 91% of patients after 1 year of treatment. A substantial decrease in all lipoprotein concentrations occurred in 53 patients in the modified Step I Diet group with significant reductions in total cholesterol (187.3 ± 4.98 mg/dL to 172.7 ± 3.8 mg/dL; P < .000) and LDL-C (99.2 ± 4.0 mg/dL to 96.2 ± 3.44 mg/dL; P < .000).Conclusion
Initiation and education of the Step I Diet should be provided during hospitalization. The 3-month dietary run-in period was deemed sufficient to determine the effect of diet on lipid abnormalities. Reduction of lipoprotein levels by a 40-mg daily fluvastatin dose was sufficient, safe, and tolerable. 相似文献6.
Background
The role of laparoscopic surgery in treating intussusception has been controversial. This study reviews our institution's experience with the laparoscopic approach (LAP) compared to the open surgical approach (OPEN).Methods
Retrospective analysis of all patients undergoing surgery for intussusception at our center from January 2002 to February 2006. Statistical assessment included Student's t test and χ2 analysis.Results
A total of 41 patients required operation for intussusception (18 LAP, 23 OPEN). Mean age was 22 months for LAP and 11 months for OPEN (P = .17). In the LAP group, 28% (5/18) were converted to an open procedure. Operative times and complications were not significantly different. Pathologic lead points were found in 33% (6/18) LAP and 35% (8/23) OPEN patients (P = 1.0). Time to full feeds was significantly shorter (LAP vs OPEN: 3.4 ± 2.7 vs 5.6 ± 3.4 days, P = .02). Length of stay was shorter (LAP vs OPEN: 4.8 ± 3.5 vs 9.1 ± 7.5 days, P = .03).Conclusions
Intussusception can be treated safely and effectively using a LAP with a significant decrease in time to full feeds and length of stay. The LAP should be considered as the initial approach for stable patients with intussusception requiring operative intervention. 相似文献7.
Kuroda T Morikawa N Kitano Y Sago H Hayashi S Honna T Saeki M 《Journal of pediatric surgery》2006,41(12):2028-2031
Purpose
To investigate the clinical features and pathologic diagnosis of prenatally diagnosed lung diseases.Materials and Methods
The medical records of 28 fetuses with prenatally diagnosed lung diseases were reviewed with regard to perinatal courses, ultrasonographic measurement of the lesion volume ratio, and the histopathology of lung tissue.Results
Of the 23 fetuses with a prenatal diagnosis of congenital cystic adenomatoid malformation (CCAM), 4 required an emergency lobectomy (1 prenatally and 3 postnatally), whereas the other 14 showed uneventful courses after birth. The pathologic diagnosis of the resected lungs included CCAM (n = 4), lobar emphysema (n = 2), intralobar sequestration (n = 2), and bronchial atresia (n = 1). The peak value of the lesion volume ratio was significantly higher in the CCAM cases that required urgent surgery than in the non-CCAM cases (2.29 ± 0.46 vs 1.20 ± 0.21, P < .001). The ratio decreased after the 25th to the 30th week to less than 1.0 in the 5 non-CCAM cases, but remained higher than 2.0 in the 4 CCAM cases. Prenatally diagnosed extralobar pulmonary sequestration caused massive pleural effusion requiring a fetal intervention in 4 of the 5 fetuses.Conclusions
The prenatally diagnosed lung lesions include various kinds of pulmonary diseases. Regardless of the diseases, sequential ultrasonographic assessment may predict perinatal risks. 相似文献8.
Cabello M García P González-Molina M Díez de los Rios MJ García-Sáiz M Gutiérrez C López V Sola E Burgos D Hernández D 《Transplantation proceedings》2010,42(8):3038-3040
Background
Noncompliance to immunosuppressive treatment is 1 of the risk factors for kidney graft loss. The once-daily, prolonged-release tacrolimus formulation may improve treatment adherence. We sought to compare the pharmacokinetics of both tacrolimus formulations in older de novo recipients of a cadaveric renal transplant from an expanded-criteria donor.Patients and Methods
This randomized study included 27 patients (14 on once daily prolonged-release formulation [QD] and 13, on the twice-daily formulation [BID]), who were treated with 0.1 mg/kg per day of tacrolimus (target blood level, 5-8 ng/mL) mycophenolate mofetil prednisone and basiliximab induction.Results
At 24 hours, incombination with the blood levels were 4.70 ± 2.50 versus 4.70 ± 3.04 ng/mL (P = NS). There were no significant differences in the AUC0-24 of tacrolimus (QD/BID) at 3 days (300.8 ± 60.15 vs 287.7 ± 125.78 ng.h/mL) or 21 days (303.05 ± 99.79 vs 275.26 ± 75.37 ng.h/mL), nor in blood levels (ng/mL) at 1 month (8.76 ± 2.46 vs 8.8 ± 1.89), 3 months (7.30 ± 1.72 vs 8.80 ± 1.89) and 6 months (7.19 ± 1.89 vs 6.60 ± 1.71). At 3 days, there was a strong correlation between AUC0-24 and Cmin both for tacrolimus QD (r = .872) and BID (r = 1.0). The incidences of acute rejection episodes were: 0% versus 16.6%; graft survivals, 100% versus 92.3% (P = NS); and patient survivals, both 100%.Conclusion
For older de novo recipients of kidneys from expanded criteria donors tacrolimus QD is comparable to the same dose in the BID formulation with similar at least short-term transplant outcomes. 相似文献9.
H. Kishikawa K. Nishimura Y. Kobayashi A. Okuno M. Kyo Y. Ichikawa 《Transplantation proceedings》2009,41(1):181
Objectives
We investigated the prevalence of the metabolic syndrome (MS) in kidney transplantation patients and assessed its development based on plasma adiponectin levels and the results of an oral glucose tolerance test (OGTT).Methods
We performed a cross-sectional study of 94 recipients with stable graft function who underwent kidney transplantation between January 1999 and October 2008. The presence of MS was determined using National Cholesterol Education Program Adult Treatment Panel III (NCEP-ATP III) criteria with body mass index (BMI) used in place of waist circumference. In addition, we measured plasma adiponectin level and performed a 75-g oral GTT.Results
Fourteen (14.9 %) recipients suffered from MS for a mean period of 46.7 months (range, 1-106) after transplantation. BMI at the time of transplantation was significantly greater in the MS group (23.4 ± 3.24 vs 20.1 ± 2.50; P < .0001), whereas plasma adiponectin level was significantly lower (11.95 ± 5.13 vs 17.71 ± 8.47; P = .0158). The insulinogenic index values were similar, whereas the homeostatic model assessment of insulin resistance was greater in the MS group (2.598 ± 1.918 vs 1.340 ± 0.934; P = .0002).Conclusion
The level of adiponectin, which was lower in kidney transplant recipients who developed MS, was negatively correlated with insulin sensitivity. We concluded that a low adiponectin level may correlate with the prevalence of MS in kidney transplantation in association with impaired insulin sensitivity. 相似文献10.
Miltiadis A. Lalountas Konstantinos D. Ballas Christos Skouras Christos Asteriou Theodoros Kontoulis Dimitrios Pissas Apostolos Triantafyllou Athanasios K. Sakantamis 《American journal of surgery》2010,200(1):118-123
Objectives
The aim of this study was to compare the effectiveness of atorvastatin with the sodium hyaluronate/carboxymethylcellulose (HA/CMC, Seprafilm; Genzyme; Genzyme Biosurgery Corporation, Cambridge, MA) in preventing postoperative intraperitoneal adhesion formation in rats.Methods
Sixty Wistar rats underwent a laparotomy, and adhesions A were induced by cecal abrasion. The animals were divided into 4 groups: group 1, control A; group 2, (A + atorvastatin); group 3, (A + HA/CMC), and group 4, (A + atorvastatin + HA/CMC). The atorvastatin (groups 2 and 4) and HA/CMC (groups 3 and 4) were administered intraperitoneally before the abdominal wall was closed. After 14 days, adhesions were classified by 2 independent surgeons.Results
The adhesion scores (mean ± standard deviation) for groups 1, 2, 3, and 4 were 2.93 ± .59, 1.85 ± 1.07, 1.80 ± .86, and 1.93 ± .70, respectively. The differences in adhesion scores among all 3 preventive groups (groups 2, 3, and 4) were statistically significant when compared with the control group (P = .005, P = .002, and P = .009, respectively).Conclusions
These data suggest that atorvastatin, administered intraperitoneally, is as effective as HA/CMC without an expectable additive effect in preventing postoperative adhesions in rats. 相似文献11.
A.C. Ferreira H. Viana F. Carvalho J.R. Pinto M.J. Galvão F. Nolasco J.R. Santos 《Transplantation proceedings》2009,41(3):874-931
Background
The major causes of renal transplant loss are death and chronic allograft dysfunction (CAD). The aims of this study were to determine the incidence of CAD in our population and the relation between allograft survival and immunosuppressive regimens.Methods
We studied retrospectively 473 patients who received deceased donor kidney transplants with at least 1 allograft biopsy between January 1990 and May 2007. Clinical data included age, gender, biopsy data, and immunosuppression before and after kidney biopsy. Mean age was 45.4 ± 12.7 years including 65% males with a mean follow-up of 6.7 ± 4.5 years. CAD was observed in 177 of 473 biopsies: 48 patients showed interstitial fibrosis (IF); 101 chronic rejection (CR); 16 transplant glomerulopathy (TG); and 12, CR and TG. Mean follow-up since the discovery of the histologic feature was 60.5 ± 50.5 months for IF; 38.3 ± 40.8 for CR, and 18.2 ± 19.2 for TG.Results
CAD, which was more common in younger patients (P = .03), correlated upon univariate and multivariate analysis with CKD stage 5d development (P < .001). Deposition of C4d in peritubular capillaries was more frequent among CAD patients (P = .004), an association with particular relevance to recipients with CR (P = .02) and TG (P < .001). When we analyzed CAD subpopulation, we observed a positive correlation between allograft survival and immunosuppression modification after biopsy. Substitution of sirolimus (40/177) was shown in univariate, multivariate and Cox regression analyses to be a renal protector (P < .002). Allograft survival was also correlated with initial mycophenolate mofetil versus azathioprine, (62/177) immunosuppression (P < .001).Conclusion
CAD, a frequent histologic feature, may benefit from sirolimus conversion. 相似文献12.
Mazanowska O Kamińska D Krajewska M Zabińska M Kopeć W Boratyńska M Chudoba P Patrzalek D Klinger M 《Transplantation proceedings》2011,43(8):3000-3003
Introduction
Nowadays, renal allografts continue to be lost at the rate of 2% to 4% per year beyond the first year after transplantation due to chronic allograft injury. Excessive accumulation of extracellular matrix results from overproduction and/or defective degradation by proteolytic enzymes, among which metalloproteinases (MMPs) play a major role. The aim of this study was to assess the role of MMPs in renal transplant recipients (RTR) in the context of allograft injury or proteinuria.Materials and methods
Plasma and urine MMP-2 and MMP-9 and tissue inhibitors of metalloproteinases (TIMPs) were assessed by enzyme-linked immunoassay in 150 RTR including 66% males with an overall mean age of 49.2 ± 11.5 years. The subjects were examined at a mean of 73.4 ± 41.2 months (range = 12-240) after kidney transplantation. Thirty-seven healthy volunteers including 54% male with an overall mean age of 48.4 ± 14.1 years served as a control group.Results
Renal transplant recipients displayed significantly decreased plasma MMP-2 activity compared with healthy controls (P < .000) probably due to increased inhibitory plasma (p) TIMP-2 activity (P = .0029), and lower plasma MMP-2:TIMP-2 index (P < .0001). Plasma MMP-9 and pTIMP-1 activities were twofold increased in RTR compared with controls (P = .0015 and P < .000) but with a nearly stable plasma MMP-9:TIMP-1 index (P = NS). There was no difference between RTR and controls according to urine (u) MMP-2 activity, but uMMP-9 was increased in RTR compared with healthy controls (P = .0032). Urine MMP-9 potential was probably diminished by increased uTIMPs (uTIMP-2, P = .017; uTIMP-1, P = .000), which contributed to graft impairment or proteinuria.Conclusion
Our study revealed profibrotic MMP/TIMP constellations in RTR that show an imbalance in plasma MMP-2 and MMP-9 with increased plasma and urinary TIMPs. The net proteolytic potential of increased plasma and urinary MMP-9 may be diminished significantly by enhanced plasma and urine TIMP activities. 相似文献13.
Background
Abnormalities in bone and mineral metabolism are common after renal transplantation (RT) but information on their long-term time course is scarce.Objectives
(1) Evaluate the time course of biochemical parameters of bone and mineral metabolism over 60 months after RT; (2) identify predictors for persistent hyperparathyroidism (HPT).Design
Prospective, longitudinal, single-center cohort study.Methods
We determined serum levels (mean values ± standard deviations) of intact parathyroid hormone (iPTH), calcium (Ca), phosphorus (P), magnesium (Mg), alkaline phosphatase (APh), calcitriol, and creatinine (Cr) preoperatively as well as 6, 12, 24, 36, 48, and 60 months after cadaveric RT in 49 patients. We in addition recorded demographic, clinical, and therapeutic data.Results
Pretransplantation iPTH stabilized from 194.2 ± 273.5 to 71.5 ± 50.7 ng/L at 6 months. Serum Ca (9.5 ± 1.1 mg/dL) and APh (81.9 ± 42.1 U/L) did not change. Baseline serum P (5.7 ± 1.8 mg/dL) and serum Mg (2.4 ± 0.4 mg/dL) decreased to normal ranges from month 6 onward. Low baseline calcitriol (22.4 ± 21.8 pmol/L) normalized slowly by 12 months (95.4 ± 46.7 pmol/L). Stable graft function (53.2 ± 15.8 mL/min) was achieved from 6 months onward. By 60 months, 26.5% of patients had a serum Ca above 9.8 mg/dL and serum P below 2.7 mg/dL; 22.4%, an Mg below 1.7 mg/dL and 8.2%, a serum iPTH more than 2.5-fold the upper limit of normal. Upon multiple regression analyses the iPTH at 60 months was influenced by a dialysis duration ≥ 2 years (β = 0.259, P = .003), body mass index > 25 kg/m2 (β = 0.257, P = .006), baseline iPTH (β = 0.182, P = .036), serum Cr (β = 0.268, P = .002) and Mg (β = − 0.242, P = .006).Conclusions
Hypercalcemia, hypophosphatemia, hypomagnesemia, and elevated iPTH persist in a subset of post-RT patients. Pretransplantation iPTH and obesity, dialysis duration, and posttransplant serum creatininemia and hypomagnesemia independently contribute to persistent HPT. 相似文献14.
15.
S.S. Bozbas S. Akcay H. Bozbas S. Kanyilmaz H. Muderrisoglu 《Transplantation proceedings》2009,41(7):2753-2756
Introduction
Pulmonary hypertension (PHT) has been reported to occur in a considerable proportion of patients with end-stage renal disease (ESRD). It is a progressive condition of the pulmonary circulation that poses prognostic importance. In this study, we sought to investigate the prevalence and the predictors of PHT among ESRD patients undergoing renal transplantation.Patients and methods
We retrospectively evaluated the records, clinical and demographic data as well as laboratory results of 500 adult patients who underwent renal transplantation at our institution. A comprehensive Doppler echocardiographic examination was performed in all patients as part of the preoperative assessment. Systolic pulmonary artery pressure (SPAP) was calculated using Bernoulli equation; a value of >30 mm Hg was accepted as PHT.Results
The mean age of the study population was 31.6 ± 10.2 years. The mean duration of dialysis was 40 months; 432 patients (86.4%) were on hemodialysis (HD) and 68 (13.6%) on peritoneal dialysis (PD). PHT was detected in 85 (17%) patients with a mean SPAP of 46.7 ± 8.7 mm Hg (range = 35-75 mm Hg). The mean age, sex, and laboratory variables were similar between patients with versus without PHT (P > .05 for all). The mean duration of dialysis therapy was longer in the PHT group than those subjects with normal SPAP (50.8 vs 38.5 months; P = .008). Concerning the type of dialysis, the ratio of patients having PHT was higher in the HD compared with the PD group (18.8% vs 5.9%; P = .008). The prevalence of chronic obstructive pulmonary artery disease, asthma, smoking, hypertension, and diabetes mellitus did not differ between patients with versus without PHT (P > .05 for all).Conclusion
The findings of this study revealed that PHT was a common clinical condition among patients with ESRD evaluated for renal transplantation. The time on renal replacement therapy particularly HD as the treatment was associated with greater prevalences. Since it may be of prognostic importance in patients undergoing renal transplantation, a careful preoperative assessment including a comprehensive Doppler echocardiographic examination is needed to identify PHT. 相似文献16.
Introduction
Infants with short bowel syndrome (SBS) are at a high risk for infectious complications and liver failure. We hypothesized that SBS, independent of total parenteral nutrition, is a proinflammatory state that is magnified by sepsis.Methods
Sprague-Dawley rats were divided into 2 groups: sham laparotomy (SH, n = 10) or 75% small bowel resection (n = 10). After 14 days, each group underwent a second sham laparotomy (SH/SH and SBS/SH) or cecal ligation and puncture, followed 16 hours later by cecal excision and peritoneal washout (SH/sepsis and SBS/sepsis). Animals were killed 56 hours later.Results
The SBS rats had higher serum levels of interleukin (IL) 6 vs SH (355 ± 99 vs 104 ± 71 pg/mL, P < .05). Liver injury scores were higher in SBS/sepsis compared with SBS/SH animals (3.7 ± 0.7 vs 1.9 ± 0.3, P < .05). Hepatic messenger RNA levels of IL-6 (12.8-fold change [FC]) and tumor necrosis factor α (5.65 FC) were elevated in SBS vs SH rats; and IL-6 (114 FC), tumor necrosis factor α (3.87 FC), and Toll-like receptor 4 (7.65 FC) were increased in SBS/sepsis compared with SH/sepsis animals.Conclusion
Our results suggest that SBS, independent of total parenteral nutrition, is a proinflammatory state and that sepsis induces an exaggerated proinflammatory cytokine response that may play an important role in liver damage and may be mediated by Toll-like receptor 4. 相似文献17.
Jose F. Vuletin Foong-Yen Lim James Cnota Beth Kline-Fath Shelia Salisbury Paul Kingma Timothy Crombleholme 《Journal of pediatric surgery》2010,45(4):703-708
Purpose
This study aim to assess the potential of prenatal predictors of postnatal severe pulmonary artery hypertension (PAH) in isolated left congenital diaphragmatic hernia (CDH) and to define a new prenatal pulmonary hypertension index (PPHI).Methods
A retrospective chart review of CDH patients between May 2005 and October 2008 was conducted. Ten patients with systemic/suprasystemic and 9 patients with subsystemic pulmonary hypertension at 3 weeks of age were identified. Diameters of the right pulmonary artery, left pulmonary artery (LPAd), aorta, and the length of vermis of the cerebellum were obtained from prenatal magnetic resonance imaging to calculate the PPHI [=(LPAd/length of vermis of the cerebellum) × 10] and the modified McGoon index (MGI) [=(diameter of the right pulmonary artery + LPAd)/diameter of aorta]. Prenatal pulmonary hypertension index and MGI were compared with lung-to-head ratio, percent predicted lung volume, and total lung volume for pulmonary hypertension and survival.Results
The PPHI and MGI had a significant, negative correlation with pulmonary hypertension (r = −0.61, P = .005, and r = −0.72, P < .005, respectively). The PPHI and MGI are significantly lower in the systemic/suprasystemic PAH group compared with the subsystemic PAH group (1.11 ± 0.32 versus 1.63 ± 0.28, P = .004, and 0.71 ± 0.15 versus 1.05 ± 0.11, P < .001, respectively). There were no significant differences between the groups comparing the lung-to-head ratio, percent predicted lung volume, and total lung volume.Conclusion
Both PPHI and MGI accurately predict the severity of postnatal PAH in isolated left CDH. 相似文献18.
Keith A. Thatch 《Journal of pediatric surgery》2010,45(2):346-349
Introduction
The aim of this study was to compare outcomes after laparoscopic and open techniques for Nissen fundoplication and gastrostomy placement in the neonatal intensive care unit (NICU) population.Methods
The medical records for NICU inpatients who underwent laparoscopic and open Nissen fundoplication and gastrostomy placement from August 2002 to August 2008 were reviewed after Institutional Review Board approval. Each technique was compared with regard to operative time, estimated blood loss, postoperative 24-hour narcotic requirements, time to goal feeds, and complication rates. Analysis of variance was used to determine statistical significance. Data are quoted as mean ± SEM.Results
Fifty-seven NICU patients underwent fundoplication and gastrostomy placement (25 laparoscopic and 32 open). The time to goal feeds was significantly shorter for the laparoscopic group (4.3 ± 0.4 vs 6.1 ± 0.6 days, P = .04). The 24-hour postoperative narcotic requirement was significantly lower in the laparoscopic group (0.24 ± 0.05 vs 0.55 ± 0.08 mg/kg, P = .007). Operation times (111 ± 5 [open] vs 113 ± 5 minutes, P = .76) and estimated blood loss (13 ± 2 [open] vs 11 ± 1 mL, P = .33) were comparable for both groups.Conclusion
Laparoscopic and open techniques for Nissen fundoplication with gastrostomy placement are safe and appropriate treatment methods with equivalent operating times for the treatment of gastroesophageal reflux in the NICU population. 相似文献19.
Objectives
Among airway complications, posttransplantation infections are related to impaired mucociliary clearance, which may represent a toxicity of cyclosporine (CsA), a potent, widely used immunosuppressive drug after organ transplantations. Since several recent studies have demonstrated CsA treatment to directly induce apoptosis in several cell types, we investigated its effects on airway cells using the human bronchial epithelial cell line BEAS-2B.Methods
Proliferation was measured by using a Cell Counting Assay Kit by exposing cells to CsA (0, 10, 30, 50, or 100 μg/mL). Apoptotic cells were identified using fluorescence microscopy after 4′, 6-diamidino-2-phenylidole (DAPI) staining. Western blot analysis was performed to evaluate the contents of poly(adenosine diphosphate-ribose) polymerase (PARP), p27, Bcl-2, and caspase-3.Results
Cell viability decreased dependent on the CsA concentration: 100.00 ± 0.01% with 0 μg CsA as control; 98.65 ± 0.02% with 10 μg (P < .05 vs control); 95.41 ± 0.05% with 30 μg (P < .05 vs control); 38.84 ± 0.04% (P < .001 vs control) with 50 μg; and 15.28 ± 0.05% with 100 μg (P < .001 vs control). Apoptotic cells detected with DAPI showed chromatin condensation and nuclear fragmentation. CsA induced p27 and p53, as well as degradation of 116-kd PARP into an 89-kd fragment.Conclusion
CsA induced apoptosis in human bronchial epithelial cells. 相似文献20.
Beltrán S Kanter J Plaza A Pastor T Gavela E Avila A Sancho A Crespo J Pallardó L 《Transplantation proceedings》2010,42(8):2841-2844