Contingent cfDNA Screening Implementation: Increasing Diagnostic Accuracy and Reducing Invasive Testing - 6 Years' Results in a Single Center.

OBJECTIVES: Universal screening for trisomy using cell-free DNA (cfDNA) has proven to be more effective than combined test, but it is not cost efficient currently. Contingent cfDNA screening on the results of the first-trimester combined test can improve the detection rate of the combined test and reduce the number of invasive tests at a lower cost than universal screening. In 2018, a contingent screening program was implemented in the community of Castilla y Leon (Spain). This study aims to compare the results achieved in Salamanca University Hospital during the first 3 years of contingent screening (2018-2020) with those of the previous 3 years (2015-2017) to assess the changes in the trisomy detection rate and the number of invasive tests. METHODS: A total of 9,903 singleton pregnancies without malformations nor nuchal translucency >p99 were included. 5,165 patients underwent combined screening and 4,738 had contingent screening based on the combined test risk. In the combined test group, women were offered an invasive test if the risk was ≥1:270, while risks under 1:270 were considered low risks, and no further testing was offered. In the contingent screening group, invasive testing was offered if the risk was ≥1:100 (≥1:50 from 2020 onwards), while cfDNA was offered if the combined test risk was between 1:100 and 1:1,000 (1:50-1:1,000 from 2020 onwards). When risk was <1:1,000, no further testing was offered. Aneuploidies detected by cfDNA were confirmed by invasive diagnostic testing. RESULTS: There were 33 cases of trisomy 21 (T21) throughout the 6 years of study. Four cases had low/intermediate risks and were spotted by cfDNA. Risk >1:1,000 threshold for contingent test detected 100% T21. There was a false-positive result for trisomy 13. There were no false-negative results. "No-call" cfDNA results were minimized by repeating blood collection 2 weeks later, as fetal fraction (FF) was doubled. Invasive testing had a drop rate of 84% after contingent screening implementation. DISCUSSION: The implementation of population-based contingent screening significantly reduces the number of invasive tests without lowering diagnostic accuracy. To achieve the maximum efficiency of the program, it is important to know the best cut-offs according to the population where the program is to be implemented. The number of uninformative results due to low FF can be reduced by repeating the test 2 weeks after the initial extraction: this increases the FF to twice the initial one, achieving informative results and avoiding unnecessary invasive tests.

Relationship between obstetric history and recurrent urinary infections.

Urinary tract infections affect more than 50% of women. 25% derive from recurrent UTI (RUTI). It is not known the relationship between obstetric history and RUTI occurrence. Investigate the relationship between obstetric events and RUTI. Multicenter observational retrospective study. Groups: G.RUTI (n = 294): women with RUTI; G.NON.RUTI (n = 126): women without RUTI (treated and cured of renal cancer). Descriptive statistics, ANOVA analysis of variance (with Scheffe's test for normal samples and Kruskal-Wallis for other distributions), Fisher's exact test, Pearson and Spearman correlation studies, and multivariate analysis multiple regression were used. Mean age 61.04 years (19-92), G.RUTI: 56.77 years SD 4.46 (19-85). G.NON.RUTI: 71 years SD 6.73 (25-92) (p = 0.0001). Obstetric history: Nulliparous G.RUTI: 20 (3.4%) G.NON.RUTI: 90 (71.42%) p 0.0001; Eutocic G.RUTI: 416 (70.74%) G.NON.RUTI: 30 (23.8%) p 0.0001. Dystocic G.RUTI: 58 (9.86%) G.NON.RUTI: 56 (44.44%) p 0.0001. G.RUTI abortion: 102 (17.34%) G.NON.RUTI: 30 (23.8%) p 0.1381. Hysterectomy without adnexectomy G.RUTI: 100 (17%) G.NON.RUTI: 18 (14.28%) p 0.5640. Hysterectomy with adnexectomy G.RUTI: 100 (17%) G.NON.RUTI: 66 (52.28%) p 0.0001. Nulliparity, dystocic delivery, and hysterectomy with adnexectomy are more frequent in women without RUTI, while eutocic births are more associated with RUTI. The most prevalent gynaecological-obstetric history in women with RUTI is eutocic delivery associated with a good health state.

Effects on Health-Related Quality of Life of Biofeedback Physiotherapy of the Pelvic Floor as an Adjunctive Treatment Following Surgical Repair of Cystocele.

OBJECTIVES: to demonstrate the benefits of physiotherapy (PT) with pelvic floor biofeedback (BFB) in improving health-related quality of life when used as a complementary therapy after surgical treatment of cystocele, in cases in which perineal pain or discomfort persists. MATERIALS AND METHODS: prospective observational study in 226 women who received complementary therapy after surgical treatment of cystocele due to persistent perineal discomfort or pain. Groups: GA (n = 78): women treated with 25 mg of oral pregabalin every 12 h plus BFB, consisting of 20 once-weekly therapy sessions, each 20 min long, with perineal pregelled surface electrodes connected to a screen which provides visual feedback; GB (n = 148): women treated with oral pregabalin 25 mg every 12 h without BFB. VARIABLES: age, body mass index (BMI), time since onset of cystocele prior to surgery (TO), SF-36 health-related quality of life survey score, diseases and concomitant health conditions, follow-up time, success, or failure of postsurgical treatment. RESULTS: average age 67.88 years (SD 12.33, 30-88), with no difference between GA and GB. Average body mass index (BMI) 27.08 (SD 0.45, 18.74-46.22), with no difference between GA and GB. Time since onset of cystocele prior to surgery (TO) was 6.61 years (SD 0.6), with no difference between GA and GB. Pretreatment SF-36 score was lower in GA success than GB success. Treatment was successful in 141 (63.20%) women and failed in 82 (36.80%). PT and age were the main predictors of success, and the least important were pretreatment SF-36 and the time elapsed after the intervention. In GA, 63 women (80.80%) showed improvement while 15 (19.20%) did not. Age was the main predictor of treatment success, while the least important was BMI. In GB, 78 women (53.80%) showed improvement while 67 (46.20%) did not improve. The main predictor was time since cystocele onset prior to surgery, while the least important was age. The odds ratio (OR) of improving quality of life for each unit increase in SF-36 was 11.5% (OR = 0.115) in all patients, with no difference between success and failure; in GA it was 23.80% (OR = 0.238), with a difference between success and failure; in GB it was 11.11% (OR = 0.111), with no difference between success and failure. GA and GB success had more history of eutocic delivery. GA success had more rUTI. GB success and GA failure both had more history of UI corrective surgery. The "failure" outcome had a higher number of patients with more than two concomitant pathological conditions. CONCLUSIONS: BFB as an adjunctive treatment improves quality of life in women suffering from persistent discomfort after surgery for cystocele. Young women who meet the criteria for recurrent urinary tract infection or who have a history of eutocic delivery show greater improvement. Body mass index does not influence response to treatment, while the presence of more than two concomitant conditions indicates a poor prognosis for improving quality of life.