1,182,718 research outputs found
Self-reported poliomyelitis vaccination and documentation in adults indicates high uptake: a digital German epidemic panel, December 2024
No full textAbstract Background On 12 December 2024, the Standing Committee on Vaccination (STIKO) recommended universal polio catch-up vaccination for children and adolescents up to 16, urging parents to check their children’s immunization status following detections of vaccine-derived poliovirus in wastewater. The Robert Koch Institute (RKI) also advised healthcare professionals to ensure vaccination coverage in priority groups. Regional health authorities, called on all citizens to review their vaccination records to address any immunization gaps. We investigated vaccine uptake (documented / recalled) to improve estimates of immunity against poliovirus among the German population and gain insights into the proportion of undocumented vaccines. Methods We conducted a survey in December 2024 using the eResearch System PIA (Prospective Monitoring and Management—App) to collect data on self-reported vaccine uptake among a German cohort. We calculated the frequency of vaccinations that were documented and undocumented, as well as the types of vaccines and the number of doses received. Vaccination status was classified as received ≤ 2 doses versus ≥ 3 doses of any polio-containing vaccine. We applied survey weights to calculate frequencies according the general German population (by age, sex, region) and logistic regression to examine the relationships between the vaccinations that were not documented but recalled, and the factors associated with these undocumented vaccinations. Results Among 1,124 participants who completed the survey on vaccination uptake, 1,097 (96.9%) participants stated to have a vaccination record. A total of 823/1,124 (74.3%) reported having a vaccination record, where at least one poliomyelitis vaccine was documented, whereas 233 (19.0%) participants recalled at least one poliomyelitis vaccination without documentation or vaccination record. Of 1,124, 68 participants (6.7%) did not report any polio vaccination neither documented nor recalled without documentation. Among the 823 participants with documented vaccination and at least one vaccination, 592 (75.1%) received at least three doses of a poliomyelitis vaccine, with a decline in older age groups, less than three doses were reported by 164 (17.6%), and the remaining 7.3% ( n = 67) did not have information on the number of doses administered. Of 2,768 documented vaccine doses, 898 (29.9%) were oral poliovirus vaccines (OPV) and 704 (26.2%) were inactivated poliovirus vaccines (IPV). In 1,166 vaccines (43.9%), the type could not be derived by the participants from the vaccination record. The odds of having a recalled vaccination (not documented) was higher in male and the older age groups compared to females and younger participants. Discussion We found similar poliomyelitis vaccination uptake compared to other data sources e.g., of the Robert Koch Institute (RKI). Vaccine-derived immunity to poliomyelitis may be underestimated based on vaccination records only. There is a need to address potential gaps in health literacy and vaccination documentation. Efforts should be made to conduct continuous seroprevalence surveys in the population in response to emerging public health threats and deduce parameters to inform modelling infection dynamics in specific outbreak scenarios. Trial registration The PCR-4-ALL cohort was registered in the German Clinical Trials Register on the 3rd of September 2024 (DRKS00034763)
The UN-SUSTAINABLE Match in HCV Recipients. Evidences from the Italian D-MELD Study on Balancing Donor-Recipient Risk Factors
No full textThe UN-SUSTAINABLE Match in HCV Recipients. Evidences from the Italian D-MELD Study on Balancing Donor-Recipient Risk Factor
All repair and reconstruction. Techniques from the SANTI study group
Full text linkBackground: Combining an anterior cruciate ligament (ACL) reconstruction with an anterolateral ligament (ALL) reconstruction results in significant advantages including reduced graft rupture rates, a lower risk of reoperation for secondary meniscectomy, improved knee stability, and higher rates of return to preinjury levels of sport. Indications: The previously reported indications for combined ACL and ALL reconstruction are as follows: ACL reconstruction revision; high-grade pivot shift test; long-term ACL rupture; young patients; pivoting activities; concomitant medial meniscus repair, and, specifically, regarding the ALL repair, it must be an acute surgery (within 15 days from injury). Technique Description: Several modern techniques have been described to repair and reconstruct the ALL. This technical note details a number of these techniques performed by the Scientific Anterior Cruciate Ligament Network International (SANTI) Study Group. Results: First, we describe a combined ACL reconstruction and double-bundle ALL reconstruction using hamstring autograft. Secondly, we describe a single-bundle ALL reconstruction using gracilis autograft. Thirdly, we describe an ALL reconstruction technique using a knotless soft anchor, which provides shallow fixation and prevents tunnel convergence. Finally, we describe a technique for ALL repair. Conclusion: Several techniques have been described to repair and reconstruct the ALL, all offering significant advantages over an isolated ACL reconstruction. Patient Consent Disclosure Statement: The author(s) attests that consent has been obtained from any patient(s) appearing in this publication. If the individual may be identifiable, the author(s) has included a statement of release or other written form of approval from the patient(s) with this submission for publication
Sydney Area Transportation Study (SATS): Home Interview Survey, 1971
No full textThe objective of the Home Interview Survey (HIS) was to obtain information on the patterns and modes of travel by people living within the Sydney Study Area. Information was also collected about the characteristics of the people making the trips and their households. Three types of information were collected in the home interview survey: household data, person data, and trip data. The data are available in two separate files, a file of 'trip' records and a file of 'person' records. The household data is therefore repeated for each trip made by its members and person data is repeated for each trip made by that person. The Person Data File contains person data and household data for all persons interviewed in the selected homes. Each record of the Trip Data File contains the origin, destination, mode, purpose, parking and other trip information, as well as the person data for the person making the trip, and the household data for that person: number of card, type of housing, telephone in house, household size, family income, and changes in job location (head of household only). The household data is therefore repeated for each trip made by its members and person data is repeated for each trip made by that person. The Person Data File contains person data and household data for all persons interviewed in the selected homes. Backgournd variables include age, sex, occupation, employment sector, personal income, household income and employment status
Numerical and experimental study of a droplet-based PCR chip
No full textA two-temperature continuous-flow polymerase chain reaction (PCR) polymer chip has been constructed that takes advantage of droplet technology to avoid sample contamination and adsorption at the surface. Samples contained in aqueous droplets are continuously moved by an oil carrier-fluid through various temperature zones, introducing the possibility of real-time quantitative PCR. In the present paper, we investigate many of the factors affecting droplet-based PCR chip design, including thermal mass, flow rate, and thermal resistance. The study focuses particularly on the fluid and substrate temperature distribution within the PCR chip and the droplet residence times in critical temperature zones. The simulations demonstrate that the flow rate strongly affects the temperature field within the carrier-fluid. Above a critical flow rate, the carrier-fluid fails to achieve the required temperatures for DNA amplification. In addition, the thermal resistances of the different layers in the chip are shown to have a major impact on the temperature profile in the channel
SUCRALFATE, RANITIDINE AND NO TREATMENT IN GASTRIC ULCER MANAGEMENT - A MULTICENTER, PROSPECTIVE, RANDOMIZED, 24 - MONTH FOLLOW-UP WITH A STUDY OF RISK FACTORS OF RELAPSE
No full textThis multicenter, prospective, randomized, open, long-term study compares sucralfate (2 g daily) with ranitidine (150 mg daily) and no treatment in gastric ulcer (GU). We report the results of the second year of a scheduled 3-year follow-up, the outcome of the 1 st year has been reported earlier. The 24-month follow-up was completed by 142 patients who were continuously either treated with the drug randomly assigned at the beginning of the study or left untreated (i.e. 32 patients took 150 mg ranitidine at bedtime, 29 took 1 g sucralfate twice daily and 81 were left untreated, 23 of whom came from the ranitidine group, 19 from the sucralfate group and 39 from the untreated group). Seven patients dropped out and 26 subjects relapsed (5 under ranitidine, 4 under sucralfate and 17 untreated cases). Ranitidine versus previous ranitidine, sucralfate versus previous sucralfate and each one versus no treatment showed comparable relapse rates. An additional study, using Cox's models, showed that three variables have a significant correlation with relapse during the 1 st year of follow-up: therapy carried out (p = 0.0025), symptoms (p = 0.0047) and family history of ulcer (p = 0.0392). In conclusion, both ranitidine 150 mg and sucralfate 2 g proved effective in reducing GU relapse as compared with no treatment, an effect which does not seem to persist during the 2nd year of therapy, when the 'no treatment' option may be taken into account
Randomized study of traditional versus aggressive systolic blood pressure control (Cardio-Sis): rationale, design and characteristics of the study population
No full textThe hypothesis that a therapeutic strategy aimed at lowering systolic blood pressure (SBP) below 130mm Hg is superior to a conventional strategy targeted at below 140mm Hg in hypertensive subjects has never been tested in randomized intervention studies. The Studio Italiano Sugli Effetti Cardiovascolari del Controllo della Pressione Arteriosa Sistolica (Cardio-Sis) is a multicentre study in non-diabetic, treated hypertensive subjects aged 455 years with uncontrolled SBP (>= 150mm Hg) and at least one additional cardiovascular risk factor (ClinicalTrials.gov identifier: NCT00421863). Subjects are randomized to an SBP goal <140mm Hg (conventional) or <130mm Hg (aggressive), independently of baseline and achieved diastolic blood pressure (BP). Anti-hypertensive drugs dispensed for the study are restricted to a list of specific drugs. The primary outcome of the study is based on regression of left ventricular hypertrophy (LVH) using electrocardiography (ECG). The hypothesis is that subjects without LVH regression or with new development of LVH 2 years after randomization are 19% with conventional strategy and 12% with aggressive strategy. Secondary outcome is a composite pool of pre-specified fatal and non-fatal events. Randomization of 1111 subjects was completed by February 2007. Mean age of subjects (41% men) at entry was 67 years. BP was 158/87mm Hg (systolic/diastolic) and prevalence of LVH by ECG was 21.0%. Cardio-Sis is the first randomized study specifically designed to compare two different SBP goals. Results will be broadly applicable to subjects with uncontrolled SBP under anti-hypertensive treatment
Residual disability and psychosocial status after Guillain Barré syndrome: a 3 to 5 year follow-up study
No full textGuillain-Barré syndrome (GBS) is the most common cause of acute not-traumatic neuromuscular paralysis. Even if the disease usually has a good prognosis, recovery is not always complete and residual motor or sensory signs may remain. Little is known on the incidence of disability and long term psychosocial status in GBS. We present the results of a 3 to 5 year follow-up study of the residual signs, including fatigue, pain and psychosocial status in 75 GBS patients, aged from 20–82 years (mean 56). The functional grading at the onset and at the follow up was performed using the Hughes scale and the data about residual symptoms were obtained at the follow up by phone interview. Among the 56 patients interviewed, 44 (78%) were asymptomatic or had minimal signs of neuropathy (0–1 grade of Hughes scale), 7 (13%) remained moderately disabled (grade 2), 4 (7%) were unable to walk independently (grade 3), and one patient died. 51 (92%) were able to live independently at home while only 3 (5%) needed continuous or partial assistance. 33% of patients (18) reported fatigue in all their activities while 27% (15) had residual pain, which rarely caused restriction in daily living. 23% of patients (13) changed or temporarily or definitively suspended their job. 59% reached the maximum improvement in the first year while 21% continued to improve in the three following years. We observed that patients>40 years old were more severely impaired than the younger ones (76% vs 60% of patients had grade 4 or 5 of Hughes scale) while permanent disability was only observed in those aged>60 years (14% of patients vs none of the younger patients had grade 3). No difference was found in the outcome between patients with or without assisted ventilation. Patients reaching maximal worsening within 10 days achieved maximal improvement more quickly and remained less disabled than the others while those with>10 days plateau duration remained more severely impaired than those with a shorter duratio
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