Given a passage with a context and an answer, construct a question on the basis of the information present in the passage. Construct the question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) it answer uses text phrases from the passage. Avoid creating questions that (i) can't be answered correctly without actually understanding the passage and (ii) uses the same words or phrases given in the passage.

Ex Input:
Context: The goals of this study were to evaluate the complication rate for intraoperative placement of a long-term central venous catheter (CVC) using intraoperative ultrasound (US) and fluoroscopy and to examine the feasibility for eliminating routine postprocedure chest X-ray.', 'Retrospective data pertaining to operative insertion of long-term CVC were collected and the rate of procedural complications was determined.', 'From January 2008 to August 2013, 351 CVCs were placed via the internal jugular vein using US. Of these, 93% had a single, successful internal jugular vein insertion. The complications included 4 arterial sticks (1.14%). Starting in October 2012, postprocedure chest radiography (CXR) was eliminated in 170 cases, with no complications. A total of $29,750 in charges were deferred by CXR elimination.
Answer: This review supports the use of US for CVC placement with fluoroscopy in reducing the rate of procedural complications. Additionally, with fluoroscopic imaging, postprocedural CXR can be eliminated with associated healthcare savings.

Ex Output:
Does image-guided placement of long-term central venous catheters reduce complications and cost?

Ex Input:
Context: Almost all the past CSWT studies show the beneficial effects on CAD patients in a maximum duration of 1-year follow-up. The aim of this study was to evaluate the actual CSWT effects in 6 years follow-up period.', 'The subjects were selected exclusively on the basis of inclusion criteria. The total number of patients was 52, out of which control group (n = 11) and the shock wave group (SW group, n = 41) was selected.', 'The wall motion, MPI, nitrate dosage, NYHA classification, SAQ scores, CCS grading, 6 MWT were markedly improved in the long-term (6 years) follow-up for SW group than the control group.
Answer: Following 6 years of follow-up, the CSWT provided agreeable results that improved myocardial function and quality of life in comparing to the month 0 and the control group. These outcomes advise that on a long-term (72 months) CSWT shows better parameters than the control group. These findings highlight that CSWT can improve clinical symptoms, morphology, functions of the heart and quality of life in patients with CHD than the patients just on drug therapy for a long-term.

Ex Output:
Does cardiac shock wave therapy show better outcomes in the coronary artery disease patients in a long term?

Ex Input:
Context: To compare the rate of parastomal hernia in patients undergoing anterior fascial fixation of the ileal conduit with that in patients without fascial fixation. Limited data exist on whether anterior fascial fixation of the ileal conduit impacts the rate of parastomal hernia.', 'A total of 496 consecutive patients undergoing radical cystectomy and ileal conduit reconstruction from 1995 to 2012 were retrospectively evaluated for parastomal hernia. All patients had a 2-fingerbreadth aperture and the ileal conduit brought through the rectus muscle and sheath. Patients were divided into 1 of 3 groups based on stoma fixation and/or reinforcement: anterior fascial fixation, posterior reinforcement, or no fascial fixation. A parastomal hernia was defined as a palpable bulge at the stoma site. Multivariate logistic regression was conducted for the primary end point of parastomal hernia, controlling for other patient- and treatment-related factors that might affect the rate of parastomal hernia.', 'Median follow-up was 16 months (range, 1-189 months). The parastomal hernia rate was significantly greater in the anterior fascial suture group (43 of 281; 15.3%) than the no fascial suture group (12 of 164; 7.3%; P=.02). Multivariate logistic regression analysis modeled for the occurrence of a parastomal hernia demonstrated that anterior fascial fixation was an independent predictor of the development of parastomal hernia (odds ratio, 2.3; 95% confidence interval, 1.03-5.14; P=.04).
Answer: Anterior fascial fixation of the ileal conduit does not reduce the risk of parastomal hernia formation compared with the patients treated without fascial fixation. Surgeons should consider avoiding anterior suture fixation during ileal conduit creation.

Ex Output:
Does anterior fascial fixation reduce the parastomal hernia rate after radical cystectomy and ileal conduit?