Background
Controversies still exist regarding the optimal diagnostic and therapeutic strategies in patients with prosthetic joint infections (PJI).Questions/Purposes
How effective are preoperative and intraoperative cultures in isolating organisms and how do these culture results compare to one another? What are the results of surgical treatment of PJI in the hip and knee in an international, tertiary referral center cohort?Patients and Methods
One hundred sixteen patients (N = 59 hip PJI, N = 57 knee PJI) were recruited prospectively to registries at three international, tertiary referral centers between December 2008 to November 2011. Retrospective review of prospective registry data including demographics, microbiology results, and operative reports was performed.Results
Preoperative synovial fluid aspiration yielded an organism in only 45.2% and 44.4% of cases, respectively, for knee and hip PJI. False-negative rates of preoperative aspiration relative to intraoperative culture were 56% and 46% in hip and knee PJI, respectively, with discordance rates of 25% and 21.4%, respectively. Rates of negative intraoperative cultures were 15% in hip PJI and 20.7% in knee PJI. Open debridement with prosthetic retention was the most common initial revision procedure performed (48.3% of hip PJI and 63.8% of knee PJI). This method of revision was successful in 41.3% of hip PJI and 59.4% of knee PJI. Initial failure rates for prosthetic revision was lower than debridement with prosthetic retention but remained substantial in both hip PJI (initial success of one-stage exchange 60% and two-stage exchange 70%) and knee PJI (initial success of one-stage exchange 80% and two-stage exchange 75%).Conclusion
Diagnosis and treatment of PJI remains challenging with difficulty in isolating the offending organism and with high rates of prosthetic revision and initial treatment failures. Future advances in organism isolation and international standardization of treatment protocols may improve patient outcomes.Electronic supplementary material
The online version of this article (doi:10.1007/s11420-013-9366-4) contains supplementary material, which is available to authorized users. 相似文献Background
The pathophysiology of rectal prolapse and intussusception has not yet been clarified. This is reflected in the multiplicity of surgical procedures. The aim of this prospective study was to measure morphological and functional changes of the pelvic floor and the rectum before and after resection rectopexy. 相似文献Background
Surgeon experience has been shown to influence outcomes for many types of cancer. The factors that patients consider when selecting a hospital or surgeon for cancer treatment remain poorly defined.Methods
All patients with a cancer diagnosis seeking treatment at a surgical clinic at Johns Hopkins Hospital were asked to participate. A survey utilizing a best–worst scaling methodology was constructed to elicit the importance of various factors when selecting a cancer surgeon. Attributes were grouped into four categories: surgeon reputation, surgeon qualifications, hospital-related factors, and nonclinical factors.Results
Two hundred fourteen patients with a cancer diagnosis participated in the study (82.0 % response rate). Patients placed the highest value on physician qualifications and hospital-related factors. Specifically, surgeon case-specific experience (coefficient 2.56, SE 0.06) and the receipt of specialized training by the surgeon (coefficient 2.32, SE 0.06) ranked highest (both P < 0.001). Among hospital-related factors, hospital case-specific volume (coefficient 1.32, SE 0.06; P < 0.001) was most important. The lowest rated factors were parking availability (coefficient ?2.81, SE 0.06) and home-to-clinic distance (coefficient ?2.12, SE 0.06) (both P < 0.001). The majority of patients reported their ideal surgeon to have at least 6 years of experience (n = 143, 68.1 %) and to have performed their specific procedure at least 50 times (n = 156, 75.3 %).Conclusions
Patients consider several factors when choosing a cancer surgeon. Surgeon qualifications and hospital-related factors appear to be most influential in their decision. Easier and more widespread dissemination of surgeon and hospital cancer data such as case volume may be useful for patients. 相似文献Background
Liver transplant (LT) patients with significant coronary artery disease (CAD) have poorer outcomes. Pre-LT coronary angiography (CA) is associated with significant complications in cirrhotic patients.Methods
This study aimed to identify predictors of abnormal CA in pre-LT cardiac assessment and to develop a predictive model to reduce unnecessary CA. From January 2006 to June 2013, 122 patients underwent CA based on the current institutional protocol.Results
Forty-one (33.6%) patients had abnormal CA. Univariate analysis showed age ≥65 years (P = .001), cryptogenic cirrhosis (P = .046), cardiac comorbidities (P = .027), ischemic heart disease (IHD; P = .002), left ventricular hypertrophy (LVH; P = .004), hypertension (P = .002), diabetes mellitus (P = .017), dyslipidemia (P < .001), metabolic syndrome (P = .003), ≥2 CAD risk factors (P = .001), and high Framingham risk score (hard CAD risk, P = .018; cardiovascular disease: lipids, P = .002; body mass index, P < .001) to be significant predictors of abnormal CA. A predictive model was developed with the use of multivariable logistic regression and included diabetes, dyslipidemia, IHD, age ≥65 years, and LVH, achieving a specificity of 55.1% and sensitivity of 90.0%. This would reduce unnecessary CA by up to one-half in our study population (from 81 to 35) while maintaining a false negative rate of only 8.5%.Conclusions
Diabetes, dyslipidemia, IHD, age ≥65 years, and LVH appear to be predictors of abnormal CA in pre-LT patients. Our predictive model may help to better select patients for CA, although further validation is required. 相似文献Methods: From the population registry of the Swedish Tax Agency, 1408 subjects living in Västra Götaland County from 18–59 years of age were randomly selected with an equal distribution of the sexes. Additionally, age was equally distributed, although twice as many subjects under 40 years of age were sent the questionnaire due to an expected low response rate for younger people. All subjects were asked to fill out the Sahlgrenska Excess Skin Questionnaire (SESQ), which included questions concerning the amount of and discomfort due to excess skin.
Results: No excess skin was reported by 78% of responders, including 71% of women and 87% of men. The responders who reported any excess skin were significantly older, had a higher body mass index (BMI) and reported larger differences between their maximum and current BMI. The most common reported site of excess skin was the abdomen in both women and men (26% and 8%, respectively), and this was reported to cause the most discomfort (median 4 and 2, respectively, on a scale from 0–10). Women graded psychosocial symptoms significantly higher than men, but there were no significant differences in other symptoms.
Conclusions:The results indicate that Swedish adults, regardless of sex, do not suffer from excess skin and may be considered as reference values. 相似文献