共查询到20条相似文献，搜索用时 140 毫秒
1.
Background
De novo gastric cancer is a rare complication of liver transplantation.Methods
Surgical treatments of 16 cases with different outcomes were reported in the English literature.Results
De novo gastric cancer (stage II) was diagnosed as the result of epi-gastric discomfort in a recipient 10 years after liver transplantation. The patient received chemotherapy alone and remained well for 26 months.Conclusions
De novo gastric cancer of liver transplantation recipients is a severe complication; early detection and relevant intervention will benefit these recipients. 相似文献2.
Background
The Kidney Donor Risk Index (KDRI) scoring system for deceased donors has been widely introduced for postoperative evaluation of graft function. We analyzed the usefulness of the KDRI in deceased donors with acute kidney injury (AKI).Methods
Forty-nine recipients from deceased donors with AKI between January 2009 and December 2014 were reviewed retrospectively. Data collected from donor medical records included age, height, weight, hypertension or diabetes history, cause of death, serum creatinine (sCr), and donation after cardiac death. Graft function data including sCr, estimated glomerular filtration rate (eGFR), and acute rejection episodes were monitored for 1 year. Correlations between KDRI score and factors indicating graft function were analyzed. A cutoff value for KDRI score was calculated using a receiver operating characteristic (ROC) curve for significant graft function.Results
The mean ages of donors and recipients were 46.81 ± 13.13 and 47.69 ± 11.43, respectively. The mean KDRI score was 1.24 ± 0.40. Univariable analysis of KDRI score and factors indicating graft function indicated that sCr at 6 to 12 months, eGFR at 1 year, and slow graft function (SGF) had statistical significance. The ROC curve of KDRI score for SGF showed an optimal cutoff value of 1.20, with sensitivity of 69.2% and specificity of 69.4% (area under the curve = 0.75) in deceased donors with AKI.Conclusions
KDRI score in deceased donors with AKI was correlated with postoperative graft values including eGFR and SGF. KDRI could be used as a predictor for the short-term clinical outcome after kidney transplant from deceased donor with AKI. 相似文献3.
Background
The global rise in infectious disease has led the Center for Disease Control and Prevention and the World Health Organization to release new guidelines for the prevention of surgical site infection.Methods
In this article, we summarize current recommendations based on level of evidence, review unresolved and unaddressed issues, and supplement them with new literature.Results
Although the guidelines discuss major issues in reducing surgical site infection, many questions remain unanswered.Conclusion
These guidelines will hopefully help in setting a standard of care based on best evidence available and focus investigators on areas where evidence is lacking. 相似文献4.
Qi Sun Xiao Yu JieZhou Wu Wei Ge Ming Cai Shaohua Li 《The Journal of arthroplasty》2017,32(7):2108-2112
Background
This study aimed at evaluating the efficacy and safety of different regimens with a single dose and an additional postoperative dose of tranexamic acid (TA) in reducing blood loss in total knee arthroplasty (TKA).Methods
A total of 180 patients who were scheduled to undergo primary unilateral TKA in our level I trauma center were recorded and divided into groups A, B, C, and D randomly. Preoperative dose, an additional postoperative dose, and 2 postoperative additional doses of TA were infused intravenously in groups A (30 mg/kg), B (15 mg/kg), and C (10 mg/kg), respectively, and TA was not infused in group D. Blood loss (intraoperative, postoperative, and total blood loss), blood transfusion rate and volume, hemoglobin level, and incidence of deep vein thrombosis were analyzed.Results
The total blood loss and postoperative blood loss were significantly lower in groups B and C without any difference between them. As for intraoperative blood loss, there was no significant difference between groups A and B and between groups B and C with superior efficacy than group D.Conclusion
With the same total dose of TA, the preoperative dose and an additional dose of TA were superior to a single preoperative dose of TA in reducing blood loss in TKA. Besides, 1 additional dose was comparable to 2 additional doses of TA in reducing blood loss. 相似文献5.
Vincent V.G. An Brahman S. Sivakumar Kevin Phan Yadin David Levy Warwick J.M. Bruce 《Journal of orthopaedic science》2017,22(1):116-120
Introduction
The technical objective of total knee arthroplasty (TKA) is to restore normal mechanical parameters to the knee. Patient-specific instrumentation (PSI) was developed to streamline the operative process and improve accuracy. PSI produces individualized cutting guides based on three-dimensional models of the patient's anatomy acquired from computed-tomography (CT) or magnetic-resonance imaging (MRI). However, the superiority of one modality over the other remains unclear. Therefore, we aimed to compare the accuracy of patient-specific cutting guides produced from MRI or CT imaging methods in TKA.Methods
Electronic databases were systematically searched using relevant keywords and MeSH terms for original-data English-language publications comparing the accuracy of CT and MRI-based PSI cutting guides in TKA. Data was extracted from the text, tables and figures of studies and meta-analysed.Results
MRI-based PSI cutting guides produced a lower proportion of coronal plane outliers (>3°) with regard to overall limb mechanical axis (OR 2.75, p = 0.01). There were no significant differences between the two in terms of sagittal femoral and tibial component placement, or coronal femoral and tibial placement, or femoral component axial rotation. Tibial rotation was not analysed in the literature.Conclusions
MRI-based patient-specific cutting guides produced a lower proportion of outliers in the overall coronal alignment of the limb compared to CT, with no significant difference between the two in terms of femoral or tibial component placement. Future studies should investigate the differences in resource usage and operative time between the two to inform surgeons' decision making when choosing an ideal imaging modality for PSI TKA.Study design
Meta-analysis.Level of evidence
III, systematic review of cohort and comparative studies. 相似文献6.
J.-Y. Kaimori Y. Isaka M. Hatanaka S. Yamamoto N. Ichimaru A. Fujikawa H. Shibata A. Fujimori S. Miyoshi T. Yokawa K. Kuroda T. Moriyama H. Rakugi S. Takahara 《Transplantation proceedings》2017,49(1):145-152
Background
Renal fibrosis (RF) is a well-known marker for chronic kidney disease (CKD) progression, including chronic renal injury after renal transplantation. However, invasive biopsy is an available examination for evaluation of RF. Diffusion MRI was once recognized as a promising option for RF. However, it is now controversial for RF evaluation in a unilateral ureteral obstruction (UUO) model.Methods
To seek an optimal imaging method applicable for RF in UUO model kidneys, we attempted a series of MRI methods, including proton density–weighted imaging, T1-weighted imaging, T2-weighted imaging, T2*-weighted imaging, diffusion-weighted imaging, and diffusion tensor imaging (DTI).Results
We identified DTI MRI by spin-echo sequence plus a special kidney attachment as the best option for evaluation of renal UUO fibrosis, compared with normal kidney on the opposite side. To confirm these results, we applied this technique to a rat UUO therapeutic model with the anti-fibrotic reagent Fasudil. Fractional anisotropy values calculated from DTI MRI showed statistically significant linear correlation with the RF area measured by use of Sirius red or Masson trichrome staining of the positive area [cortex (r = 0.6397, P = .0283) and outer stripe of the outer medulla (r = 0.7810, P = .0039)].Conclusions
By use of the DTI MRI with spin-echo sequence, it may be possible to accurately evaluate RF in CKD. 相似文献7.
Pavel P. Morozov Munib Sana Brian J. McGrory Steven W. Farraher Tod G. Abrahams 《The Journal of arthroplasty》2017,32(8):2535-2545
Background
Failed total hip arthroplasty (THA) caused by mechanically assisted crevice corrosion (MACC) has serious consequences—notably, adverse local tissue reactions. Metal artifact reduction sequence (MARS) magnetic resonance imaging (MRI) has been used to evaluate failed THA for other reasons but has not been assessed for the analysis of cases of MACC in the setting of metal-on-polyethylene arthroplasties.Methods
We examined the correlation between preoperative MARS MRI and surgical findings in a cohort of 20 consecutive patients undergoing revision THA for symptomatic MACC without other associated orthopedic diagnoses. Surgical findings included soft tissue and bone evaluation, presence and location of fluid, abductor disruption, composite tissue damage grade, and prosthesis trunnion damage at the time of revision.Results
MARS MRI complex synovitis, thickened pseudocapsule, and extra-articular fluid extension each strongly correlated with both the soft-tissue damage grade and trunnion damage noted at surgery. Bone marrow edema was also found to strongly correlate with bone necrosis intraoperatively.Conclusion
MARS MRI is an excellent diagnostic tool for evaluation of patients with elevated serum Co after metal-on-polyethylene THA. Patients with complex synovitis, a thick pseudocapsule, bone marrow edema, and extra-articular fluid should strongly consider revision surgery. 相似文献8.
Western Vascular Society guidelines for transfer of patients with ruptured abdominal aortic aneurysm
Matthew W. Mell Benjamin W. Starnes Larry W. Kraiss Peter A. Schneider William C. Pevec 《Journal of vascular surgery》2017,65(3):603-608
Introduction
When a patient with ruptured abdominal aortic aneurysm (rAAA) presents at a facility ill-equipped to provide care, transfer may provide the best chance for survival. Large distances and long travel times provide challenging barriers to prompt and appropriate care in the western United States.Methods
The Western Vascular Society (WVS) adopted a set of guidelines in considering transfer of a patient with an rAAA using published literature, membership survey and input, and existing recommendations. This article reports the guidelines and describes the process and rationale behind their development.Results
Fifteen guidelines for transfer and care of rAAAs were endorsed by the WVS.Conclusions
When local care cannot be provided, transfer guidelines may standardize care for rAAAs and may be applicable across may practice settings. 相似文献9.
Objective
To summarise current knowledge of Internal anal sphincter.Background
The internal anal sphincter (IAS) is the involuntary ring of smooth muscle in the anal canal and is the major contributor to the resting pressure in the anus. Structural injury or functional weakness of the muscle results in passive incontinence of faeces and flatus. With advent of new assessment and treatment modalities IAS has become an important topic for surgeons. This review was undertaken to summarise our current knowledge of internal anal sphincter and highlight the areas that need further research.Method
The PubMed database was used to identify relevant studies relating to internal anal sphincter.Results
The available evidence has been summarised and advantages and limitations highlighted for the different diagnostic and therapeutic techniques.Conclusion
Our understanding of the physiology and pharmacology of IAS has increased greatly in the last three decades. Additionally, there has been a rise in diagnostic and therapeutic techniques specifically targeting the IAS. Although these are promising, future research is required before these can be incorporated into the management algorithm. 相似文献10.
M. Nojima Y. Yamada Y. Higuchi K. Shimatani A. Kanematsu S. Yamamoto 《Transplantation proceedings》2017,49(1):41-44
Background
Although kidney graft survival within 5 years after transplantation is now achieved in >95% of recipients, chronic graft deterioration remains a factor limiting long-term survival. Chronic nephrotoxicity induced by calcineurin inhibitors (CNIs) is one of the major causes of chronic graft injury; thus, minimization of CNIs by administration of everolimus (EVR) is expected to relieve their toxic effects.Methods
Fifty-six kidney transplant recipients receiving CNI-based immunosuppression (tacrolimus, n = 34; cyclosporine, n = 22) were analyzed. The average posttransplant period at conversion was 7.4 years and no less than 3 years. Conversion of immunosuppression was accomplished by reducing CNI by 40% in dose and beginning EVR at 1 or 1.5 mg. Changes in graft function were examined, and adverse effects were evaluated.Results
Significant improvement in graft function was observed quickly after EVR administration, and it had persisted for 1 year after conversion as a 7% increase in estimated glomerular filtration rate. No obvious acute rejection was observed. Further analyses concerning “timing of EVR conversion” and “graft function at conversion” were performed. Graft function was significantly improved even in patients with late conversion at 2 to 10 years. The estimated glomerular filtration rate was significantly improved even in patients with poor function.Conclusions
We concluded that this modification to the immunosuppressive regimen, as expected, reduced CNI nephrotoxicity. Our results showed that even patients with very late conversion or poor graft function also benefited from EVR conversion with CNI minimization. 相似文献11.
W.M. Bennett E.L. Simonich A.M. Garre K.M. McEvoy M.A. Farinola T.D. Batiuk 《Transplantation proceedings》2017,49(8):1779-1782
Introduction
Between January 2013 and September 2015, 135 consecutive renal transplant patients were screened prospectively with ultrasound for renal cell carcinoma (RCC).Results
Eighteen ultrasound abnormalities were identified with 4 solid lesions detected. Fifty-six other patients were screened retrospectively by referring nephrology groups, with 6 additional malignancies found.Conclusion
As a result of our data, we recommend and have instituted annual ultrasound screening of native kidneys in all renal transplant patients. 相似文献12.
Z. Wu S. Zhang L. Zhou J. Cai J. Tan X. Gao Z. Zeng D. Li 《Transplantation proceedings》2017,49(7):1656-1658
Objective
To investigate the thromboembolism induced by blood-mediated inflammatory reactions against infused cells during the clinical application of stem cells.Methods
Two patients with renal transplantation and chronic kidney disease, respectively, experienced thromboembolism after umbilical cord mesenchymal stem cell (UCMSC) infusion. The clinical manifestations and the laboratory test results were collected and analyzed.Results
The patients received stem cell infusion through the peripheral veins and presented with a swollen and painful forearm postinfusion. Doppler ultrasound showed venous clots at the proximal end of the puncture site. Urokinase and warfarin were used for thrombolytic therapy. The swelling and pain were relieved and cured.Conclusion
Safety concerns are still a primary hurdle for stem cell therapy, and thromboembolism as a critical complication should be prevented appropriately. 相似文献13.
M. Lejman K. Drabko B. Styka D. Winnicka M. Babicz I. Jaszczuk J.R. Kowalczyk 《Transplantation proceedings》2017,49(8):1903-1910
Background
In the light of an increasing number of hematopoietic stem cell transplantations and more frequent use of reduced-intensity conditioning as preparative regimens for hematopoietic stem cell transplantation, post-transplant cell chimera monitoring is considered a necessity.Methods
The quantitative fluorescence polymerase chain reaction method, along with the commercial AmpFSTR SGMPlus kit, was applied in research on hematopoietic chimeras.Results
The total of 102 patients who had undergone allogenic transplantations were investigated. Chimerism monitoring was commenced on the seventh day after transplantation and lasted up to 12 years in some cases, according to the instituted schedule.Conclusions
The kit has been shown to be fully sufficient for determining genetic profiles of recipients and donors and selecting informative markers. The method has been proven effective and satisfactory for assessing quantitative chimeras. 相似文献14.
Y. Noguchi T. Ueno R. Matsuura T. Kodama K. Deguchi S. Umeda T. Yamamichi K. Nakahata M. Zenitani Y. Takama H. Yamanaka Y. Tazuke H. Okuyama 《Transplantation proceedings》2017,49(1):135-138
Background
Patients with intestinal failure (IF) are candidates for intestinal transplantation (ITx). In Japan, these patients have few opportunities to undergo cadaveric ITx because of low rates of organ donation. The donor criteria and recipient priority for ITx are still unknown. We reviewed our cases of IF to investigate which patients should be prioritized for ITx.Methods
Patients with IF who were registered as candidates for cadaveric ITx between January 2010 and November 2015 in our institute were included in this retrospective study. Their data were gathered from their charts and analyzed.Results
Five patients were included. Their primary diseases included total colon aganglionosis (n = 1), chronic idiopathic intestinal pseudo-obstruction syndrome (n = 2), superior mesenteric vein embolization (n = 1), and graft loss after ITx (n = 1). Two patients died of liver failure (LF) during the waiting period. The remaining three are now alive and waiting for transplantation. The lengths of the remaining intestine were more than 20 cm in living cases but less than 20 cm in fatal cases. In the fatal cases, they had several episodes of catheter-related blood stream infection, which caused LF and acute renal failure.Conclusions
We identified two patients with less than 20 cm residual small bowel who died after acute deterioration of liver function. Patients with ultra-short bowel could have a higher risk of LF. Therefore, they should be referred as soon as possible to a specialized hospital where ITx is a choice of treatment for IF. 相似文献15.
Background
Chronic allograft dysfunction (CAD) is the most important clinical problem in solid organ transplantation. Interstitial fibrosis and tubular atrophy contribute to long-term renal allograft failure. Urinary type III procollagen N-terminal propeptide (PIIINP), has been shown to associate fibrotic processes.Methods
One hundred sixty patients with CAD who underwent allograft biopsies were evaluated, and 52 patients with chronic or sclerosing allograft nephropathy were enrolled in the study. The subjects were divided into 2 groups according to the level of urinary PIIINP to creatinine (u-PIIINP-to-Cr): high procollagen group and low procollagen group. The association between u-PIIINP-to-Cr level at the time of biopsy and renal endpoints during 36 months of follow-up was assessed by multivariate Cox analysis.Results
Interstitial fibrosis and proteinuria were higher in the high procollagen group compared with the low urinary procollagen group. Correlation analysis showed that levels of u-PIIINP-to-Cr were positively associated with fibrosis scores. During the follow-up, glomerular filtration rate (GFR) decreased in both study groups; however, GFR declined more in the high procollagen group than in low procollagen group. Cox regression model showed that the u-PIIINP-to-Cr levels, GFR, and proteinuria were independent risk factors associated with graft survival.Conclusion
u-PIIINP-to-Cr level is a potentially useful noninvasive marker for graft survival in patients with CAD. 相似文献16.
Ahmed El-Bakoury Hazem Hosny Mark Williams Jonathan Keenan Rathan Yarlagadda 《The Journal of arthroplasty》2017,32(2):541-545
Background
Periprosthetic fracture following total hip arthroplasty is a significant problem faced by hip surgeons, and its management in elderly patients remains a considerable challenge.Methods
We retrospectively reviewed 28 Vancouver B2 and B3 periprosthetic femoral fractures (PFF) treated with revision of the femoral stems by distally locked, hydroxyapatite-coated uncemented stems (Cannulok). Patients were aged 75 years or older at the time of surgery.Results
The mean follow-up was 44.6 months (range, 24-102). The mean postoperative Oxford hip score was 30.1 (range, 10-46). The rate of fracture union was 95.8%, and the survivorship of the stem was 100% at the end of follow-up.Conclusion
The management of PFF in elderly is associated with increased postoperative morbidity and mortality. The use of a distally locked, hydroxyapatite-coated femoral stem is a valid option for the treatment of PFF to achieve fracture union with a low rate of revision. 相似文献17.
Tom Schmidt-Braekling Andrew D. Pearle David J. Mayman Geoffrey H. Westrich Wenzel Waldstein Friedrich Boettner 《The Journal of arthroplasty》2017,32(3):965-967
Background
Although venous thromboembolism is one of the leading causes of morbidity after knee arthroplasty, little data exist on the risk of deep venous thrombosis (DVT) after unicompartmental knee arthroplasty (UKA).Methods
We prospectively enrolled 112 patients undergoing UKA to determine the incidence of DVT utilizing aspirin 325 mg twice a day (BID) for 4 weeks postoperatively as DVT prophylaxis. The data were compared with a recent randomized controlled trial of patients undergoing total knee arthroplasty utilizing aspirin and Lovenox in conjunction with pneumatic compression devices.Results
One patient (0.9%) had an asymptomatic DVT, and none developed clinical symptoms of either DVT or pulmonary embolus. The incidence of asymptomatic and symptomatic DVT was 0.9% and 0%, respectively.Conclusion
Our data suggest that 325 mg of aspirin BID for 4 weeks results in a very low risk of DVT for patients undergoing UKA. 相似文献18.
Pieter-Jan T.K. Vandekerckhove Matthew G. Teeter Douglas D.R. Naudie James L. Howard Steven J. MacDonald Brent A. Lanting 《The Journal of arthroplasty》2017,32(6):2012-2016
Background
Coronal plane alignment is one of the contributing factors to polyethylene wear in total knee arthroplasty.Methods
Based on 95 retrieved polyethylene inserts, wear and damage patterns were analyzed in relationship to the overall mechanical alignment and to the position of the tibial component.Results
A progression of wear was observed with progressively mechanical varus alignment. However, there was significantly more damage in the lateral compartment in the mild and moderate varus group compared to the valgus group. No difference in damage was seen between all groups for tibial component positioning in valgus or varus.Conclusion
Progressive wear was observed with progressively varus alignment with more damage at the lateral side. This observation is unique and might be explained by lateral condylar lift-off inducing impact and shear loading in the varus group. 相似文献19.
David Clinton McNabb Douglas A. Dennis Raymond H. Kim Todd M. Miner Charlie C. Yang Jason M. Jennings 《The Journal of arthroplasty》2017,32(1):220-222
Background
Use of leukocyte esterase (LE) testing of synovial fluid as an adjunct to the infection workup in total joint arthroplasty patients has been advocated. The purpose of this study was to determine the false positive rate of this test.Methods
Two hundred patients with the diagnosis of degenerative osteoarthritis undergoing a total knee arthroplasty were identified for this study. The knee joint was aspirated under sterile conditions before performing the total knee arthroplasty. The fluid was analyzed with an LE reagent strip.Results
There were 27 bloody and 17 dry aspirations. One hundred forty-nine patients produced an aspiration that allowed for LE testing. There was 1 positive LE result. The specificity of the LE test was found to be 99.3%.Conclusion
These data suggest the LE strip as a part of the workup for infection in a native knee should yield few false positive results. 相似文献20.
Kevin C. Ilo Emma J. Derby Robert K. Whittaker Gordon W. Blunn John A. Skinner Alister J. Hart 《The Journal of arthroplasty》2017,32(5):1679-1683