2,652 research outputs found
Robotic versus total laparoscopic radical hysterectomy with pelvic lymphadenectomy for the treatment of early cervical cancer
Background: The aim of this study is to compare the safety, morbidity, intra operative, pathologic and postoperative outcomes of Robotic radical hysterectomy (RRH) to total laparoscopic radical hysterectomy (TLRH) in patients with early stage cervical cancer.Methods: All the women with newly diagnosed invasive cervical cancer (stage IB1to IIA), who underwent TLRH or RRH with pelvic lymph node dissection at Krishna Institute of Medical Sciences from September 2011 to August 2013 were analysed.Results: Twenty six patients underwent TLRH with pelvic lymphadenectomy and twenty six patients underwent RRH with pelvic lymphadenectomy. Age, tumor histology, stage, lymphovascular space involvement and nodal status are same for both the groups. No statistical differences were observed in operative time (174 vs. 158 min), estimated blood loss (160 vs. 110 ml), or hospital stay (3.1 vs. 2.8 days). Mean pelvic lymph node count was more in Robotic group. None of the robotic or laparoscopic procedures required conversion to laparotomy. All patients in both groups are alive and free of disease at the time of last follow up.Conclusions: According to our experience, robotic radical hysterectomy appears to be safe and effective therapeutic procedure for managing early-stage cervical cancer without significant differences when compared to TLRH, with respect to operative time, blood loss, hospital stay. Regarding the oncological outcome, Robotic radical hysterectomy is superior in terms of number of lymph nodes and parametrial bulk; although multicenter randomized clinical trials with longer follow-up are necessary to evaluate the overall oncologic outcome
Detection of Fatigue Crack Propagation in Steel Using Magnetic Measurements
For structural components which are exposed to cyclic stresses, fatigue damage could lead to a catastrophic failure. In nuclear pressure vessel systems where A533B steel is widely used as structural material, cyclic thermal expansions often create a low-cycle fatigue condition. The evaluation of fatigue damage therefore is critically important and nondestructive evaluation of fatigue damage is highly desirable from the viewpoint of both safer and longer operation lifetime
Effects of religious vs. standard cognitive behavioral therapy on therapeutic alliance: A randomized clinical trial
Background: Treatments that integrate religious clients' beliefs into therapy may enhance the therapeutic alliance (TA) in religious clients. Objective: Compare the effects of religiously integrated cognitive behavioral therapy (RCBT) and standard CBT (SCBT) on TA in adults with major depression and chronic medical illness. Method: Multi-site randomized controlled trial in 132 participants, of whom 108 (SCBT = 53, RCBT = 55) completed the Revised Helping Alliance Questionnaire (HAQ-II) at 4, 8, and 12 weeks. Trajectory of change in scores over time was compared between groups. Results: HAQ-II score at 4 weeks predicted a decline in depressive symptoms over time independent of treatment group (B = −0.06, SE = 0.02, p = 0.002, n = 108). There was a marginally significant difference in HAQ-II scores at 4 weeks that favored RCBT (p = 0.076); however, the mixed effects model indicated a significant group by time interaction that favored the SCBT group (B = 1.84, SE = 0.90, degrees of freedom = 181, t = 2.04, p = 0.043, d = 0.30). Conclusions: While RCBT produces a marginally greater improvement in TA initially compared with SCBT, SCBT soon catches up
Radiofrequency Heating of the Cornea: An Engineering Review of Electrodes and Applicators
This paper reviews the different applicators and electrodes employed to create localized heating in the cornea by means of the application of radiofrequency (RF) currents. Thermokeratoplasty (TKP) is probably the best known of these techniques and is based on the principle that heating corneal tissue (particularly the central part of the corneal tissue, i.e. the central stroma) causes collagen to shrink, and hence changes the corneal curvature. Firstly, we point out that TKP techniques are a complex challenge from the engineering point of view, due to the fact that it is necessary to create very localized heating in a precise location (central stroma), within a narrow temperature range (from 58 to 76ºC). Secondly, we describe the different applicator designs (i.e. RF electrodes) proposed and tested to date. This review is planned from a technical point of view, i.e. the technical developments are classified and described taking into consideration technical criteria, such as energy delivery mode (monopolar versus bipolar), thermal conditions (dry versus cooled electrodes), lesion pattern (focal versus circular lesions), and application placement (surface versus intrastromal)
Gambling problems in the family – A stratified probability sample study of prevalence and reported consequences
<p>Abstract</p> <p>Background</p> <p>Prior studies on the impact of problem gambling in the family mainly include help-seeking populations with small numbers of participants. The objective of the present stratified probability sample study was to explore the epidemiology of problem gambling in the family in the general population.</p> <p>Methods</p> <p>Men and women 16–74 years-old randomly selected from the Norwegian national population database received an invitation to participate in this postal questionnaire study. The response rate was 36.1% (3,483/9,638). Given the lack of validated criteria, two survey questions ("Have you ever noticed that a close relative spent more and more money on gambling?" and "Have you ever experienced that a close relative lied to you about how much he/she gambles?") were extrapolated from the Lie/Bet Screen for pathological gambling. Respondents answering "yes" to both questions were defined as Concerned Significant Others (CSOs).</p> <p>Results</p> <p>Overall, 2.0% of the study population was defined as CSOs. Young age, female gender, and divorced marital status were factors positively associated with being a CSO. CSOs often reported to have experienced conflicts in the family related to gambling, worsening of the family's financial situation, and impaired mental and physical health.</p> <p>Conclusion</p> <p>Problematic gambling behaviour not only affects the gambling individual but also has a strong impact on the quality of life of family members.</p
Elucidation of Hepatitis C Virus Transmission and Early Diversification by Single Genome Sequencing
A precise molecular identification of transmitted hepatitis C virus (HCV) genomes could illuminate key aspects of transmission biology, immunopathogenesis and natural history. We used single genome sequencing of 2,922 half or quarter genomes from plasma viral RNA to identify transmitted/founder (T/F) viruses in 17 subjects with acute community-acquired HCV infection. Sequences from 13 of 17 acute subjects, but none of 14 chronic controls, exhibited one or more discrete low diversity viral lineages. Sequences within each lineage generally revealed a star-like phylogeny of mutations that coalesced to unambiguous T/F viral genomes. Numbers of transmitted viruses leading to productive clinical infection were estimated to range from 1 to 37 or more (median = 4). Four acutely infected subjects showed a distinctly different pattern of virus diversity that deviated from a star-like phylogeny. In these cases, empirical analysis and mathematical modeling suggested high multiplicity virus transmission from individuals who themselves were acutely infected or had experienced a virus population bottleneck due to antiviral drug therapy. These results provide new quantitative and qualitative insights into HCV transmission, revealing for the first time virus-host interactions that successful vaccines or treatment interventions will need to overcome. Our findings further suggest a novel experimental strategy for identifying full-length T/F genomes for proteome-wide analyses of HCV biology and adaptation to antiviral drug or immune pressures
Diagnostic criteria for diabetes revisited: making use of combined criteria
BACKGROUND: Existing cut-offs for fasting plasma glucose (FPG) and post-load glucose (2hPG) criteria are not equivalent in the diagnosis of diabetes and glucose intolerance. Adjusting cut-offs of single measurements have not helped so we undertook this project to see if they could be complementary. METHODS: We performed oral glucose tolerance tests and mean levels of hemoglobin A1c (HbA1c) measurements on 43 patients referred to a diabetes clinic for possible diabetes. Results of single and combined use of the FPG and 2hPG criteria were evaluated against the levels of HbA1c and results re-interpreted in the light of existing reports in the literature. RESULTS: Our results confirm that the FPG and the 2hPG, being specific and sensitive respectively for the presence of glucose intolerance or diabetes, are not equivalent. They are shown to be indeed complementary and a re-definition of diagnostic criteria based on their combined use is proposed. CONCLUSIONS: We conclude that altering single measurement cut-offs for the diagnosis of diabetes and altered glucose tolerance will not result in better outcomes. We present the case for a combined criteria in the diagnosis and definition of diabetes with a FPG≥7 mmol/L AND 2-hour glucose ≥7.8 mmol/L being used to define diabetes while a FPG<7 mmol/L AND 2-hour glucose <7.8 mmol/L being used to define normality. Discordant values will define impaired glucose tolerance (IGT). This proposal requires prospective evaluation in a large cohort
A diagnostic dilemma between psychosis and post-traumatic stress disorder: a case report and review of the literature
<p>Abstract</p> <p>Introduction</p> <p>Post-traumatic stress disorder is defined as a mental disorder that arises from the experience of traumatic life events. Research has shown a high incidence of co-morbidity between post-traumatic stress disorder and psychosis.</p> <p>Case presentation</p> <p>We report the case of a 32-year-old black African woman with a history of both post-traumatic stress disorder and psychosis. Two years ago she presented to mental health services with auditory and visual hallucinations, persecutory delusions, suicidal ideation, recurring nightmares, hyper-arousal, and initial and middle insomnia. She was prescribed trifluoperazine (5 mg/day) and began cognitive-behavioral therapy for psychosis. Her psychotic symptoms gradually resolved over a period of three weeks; however, she continues to experience ongoing symptoms of post-traumatic stress disorder. In our case report, we review both the diagnostic and treatment issues regarding post-traumatic stress disorder with psychotic symptoms.</p> <p>Conclusions</p> <p>There are many factors responsible for the symptoms that occur in response to a traumatic event, including cognitive, affective and environmental factors. These factors may predispose both to the development of post-traumatic stress disorder and/or psychotic disorders. The independent diagnosis of post-traumatic stress disorder with psychotic features remains an open issue. A psychological formulation is essential regarding the appropriate treatment in a clinical setting.</p
A single-centre investigator-blinded randomised parallel-group study protocol to investigate the influence of an acclimatisation appointment on children’s behaviour during N2O/O2 sedation as measured by psychological, behavioural and real-time physiological parameters
Aims and objectives
To describe a study protocol of a randomised control trial (RCT) assessing the effectiveness, in reducing dental anxiety, of an acclimatising nitrous oxide sedation (N2O) session prior to actual dental treatment with N2O.
Materials and methods
A single-centre investigator-blinded parallel-group RCT conducted in a postgraduate dental hospital in Dubai, United Arab Emirates (UAE). Anxious children requiring N2O (aged 5–15 years) will be randomly assigned to; a study group: children who will have a preparatory N2O trial experience or; a control group: children who will only have N2O explained to them. Treatment with N2O for both groups will start at the second visit. The following outcomes will be recorded: completion of dental treatment, anxiety scores at baseline and after treatment (using the Modified Child Dental Anxiety Scale faces), behaviour of the child (using Frankl Rating Behaviour Scale) and the acquisition of real-time physiological anxiety-related parameters (using E4® electronic wrist devices).
Results
The data will be analysed statistically.
Discussion
There is a paucity of research regarding dental N2O acclimatising appointments. This RCT will supplement existing literature.
Conclusions
This RCT will report whether prior acclimatising of a child to N2O sedation is effective, or not, in improving dental treatment behaviour
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