Formerly preeclamptic women with a subnormal plasma volume are unable to maintain a rise in stroke volume during moderate exercise.

Contains fulltext : 47812.pdf (publisher's version ) (Open Access)INTRODUCTION: In formerly preeclamptic women with a low plasma volume, the recurrence rate of preeclampsia is higher than in women with a normal prepregnant plasma volume. In a recent study, we demonstrated that the low plasma volume subgroup also had a subnormal venous capacitance. In the present study, we determined the impact of subnormal plasma volume on the hemodynamic response to moderate exercise. PATIENTS AND METHODS: We performed this study in the follicular phase of the menstrual cycle, in 31 formerly preeclamptic women with a subnormal plasma volume (low-PV) and eight parous controls. The exercise consisted of 60 minutes of cycling in the supine position at 35% of the individualized maximum capacity. Before, during, and after cycling, we measured the percentage change in heart rate, stroke volume, and cardiac output. Before and after exercise, we measured the effective renal plasma flow (ERPF, para-amino-hippurate [PAH] clearance), glomerular filtration rate (GFR, inulin clearance), circulating levels of alpha-atrial natriuretic peptide (alpha-ANP), and active plasma renin concentration (APRC). RESULTS: The response to exercise of formerly preeclamptic women with a subnormal plasma volume differed from that in controls by a lack of rise in stroke volume, a smaller rise in cardiac output and alpha-ANP, and a greater fall in GFR. The responses in heart rate, ERPF, and APRC did not differ between the two groups. CONCLUSION: The response to moderate exercise of formerly preeclamptic women with a subnormal plasma volume differs from that in healthy parous controls with a normal plasma volume and suggests a lower capacity to raise venous return in conditions of a higher demand for systemic flow. The lower capacity to raise venous return in these conditions is associated with more cardiovascular drift. The physiologic consequence is a lower aerobic endurance performance during moderate exercise

[Uterus preserving surgery versus vaginal hysterectomy in treatment of uterine descent: a systematic review].

Contains fulltext : 96551.pdf (publisher's version ) (Closed access)OBJECTIVE: To compare the outcomes of uterus preserving procedures and vaginal hysterectomy in treatment of uterine prolapse. DESIGN: Systematic review. METHOD: We searched in Pubmed, Embase, the Cochrane Library and the reference lists of relevant publications for articles comparing uterus preserving procedures with vaginal hysterectomy. The following outcome measures were studied: anatomical result, subjective outcome regarding prolapse symptoms, micturition, defecation and sexual function, quality of life, duration of surgery, duration of hospital stay, amount of blood loss, complications and postoperative recovery. Results : We found one systematic review, one randomised trial and five cohort studies, from which eight comparative studies were selected for review. There was no difference in subjective outcome after sacrospinous fixation, Manchester Fothergill procedure, abdominal hysteropexy and intravaginal slingplasty on comparison with vaginal hysterectomy. All procedures, except for sacrospinous ligament fixation, had similar anatomical outcomes to vaginal hysterectomy. With the exception of Manchester Fothergill procedure hospital stay was shorter after uterus preservation. The quality of most of the studies was poor, with only small numbers of patients included and short-term follow up. CONCLUSIONS: Although some uterus preserving procedures are associated with shorter operation time, shorter duration of hospital stay and less blood loss than vaginal hysterectomy, based on the current literature there is no clear preference for either uterus preserving surgery or hysterectomy in surgical treatment of uterine descent, since randomised trials of sufficient quality are lacking. Prospective clinical randomised trials with long term follow-up are needed to investigate the value of uterine preserving procedures

Practice pattern variation in surgical management of pelvic organ prolapse and urinary incontinence in The Netherlands

Contains fulltext : 152596.pdf (publisher's version ) (Closed access)INTRODUCTION: Practice pattern variation (PPV) is the difference in care that cannot be explained by the underlying medical condition. The aim of this study was to describe PPV among Dutch gynecologists regarding treatment of pelvic organ prolapse (POP) and urinary incontinence (UI). MATERIALS AND METHODS: PPV was calculated from data of healthcare declaration codes of 2010. Data were provided by Vektis and Kiwa Carity. PPV for POP and UI in general was calculated per hospital and per region. Furthermore, PPV for transvaginal mesh and surgical treatment of uterine descent was assessed. RESULTS: PPV of surgical treatment for POP and UI in general was assessed for 91 hospitals. PPV for surgical treatment of uterine descent and transvaginal mesh placement was calculated for 88 hospitals. A high PPV per hospital and per region was found. In some hospitals, a hysterectomy was performed in all cases of uterovaginal prolapse, while in other hospitals, uterus-preserving techniques were mostly performed. A high PPV of transvaginal mesh placement was observed. CONCLUSION: In the small country of The Netherlands, we found a high PPV in surgical management of POP and UI with respect to the choice for surgical treatment and the type of surgery. This finding might be due to the absence of clearly defined guidelines. Studies with respect to conservative versus surgical treatment and the type of surgery are of need to establish evidence-based guidelines

Postoperative pain after adjustable single-incision or transobturator sling for incontinence: a randomized controlled trial

Contains fulltext : 152595.pdf (publisher's version ) (Closed access)OBJECTIVE: To compare postoperative pain scores and assess efficacy between an adjustable single-incision sling and a standard transobturator sling for stress urinary incontinence (SUI). METHODS: This single-blinded randomized controlled trial involved 156 women with clinically proven SUI. Women were allocated to receive either an adjustable single-incision or a transobturator sling. The primary outcome was postoperative pain score on a visual analog scale. Secondary outcomes were objective and subjective cure rates at 12 months, symptom bother scores, quality of life, and complications. RESULTS: The mean pain score in the first week postoperatively was significantly lower at all time points in the adjustable single-incision sling group compared with the transobturator sling group. Maximum difference in pain score was reported on the evening of the day of surgery; median pain score was 1.0 (interquartile range 2.0) in the adjustable sling group and 3.0 (interquartile range 4.5) in the transobturator sling group (Mann Whitney U test P<.001). There was no statistical difference in analgesic use. The objective cure rates in the adjustable single-incision sling and in the transobturator sling group were 90.8% and 88.6% (P=.760), and the subjective cure rates were 77.2% and 72.9% (P=.577), respectively. No difference in the complication rate was found. CONCLUSION: An adjustable single-incision sling for the treatment of SUI is associated with lower early postoperative pain scores but shows comparable cure rates with a transobturator at 12 months of follow-up. CLINICAL TRIAL REGISTRATION: Netherlands Trial Register, http://www.trialregister.nl, NTR: 2558. LEVEL OF EVIDENCE: I

Maternal nonpregnant vascular function correlates with subsequent fetal growth.

Contains fulltext : 48774.pdf (publisher's version ) (Closed access)OBJECTIVE: Evidence is accumulating that fetal growth is influenced by preexisting maternal disorder(s) hampering endothelial function. We tested the hypothesis that in nonpregnant normotensive, formerly preeclamptic women, vascular function predicts the development of fetal growth restriction. METHODS: In 60 formerly preeclamptic women, we measured central hemodynamic and vascular and clotting function mid follicular phase during the menstrual cycle. Inclusion for final analysis required besides normotension, a subsequent singleton pregnancy, established within 1 year after the prepregnant evaluation and ongoing beyond 16 weeks' gestation. In the ongoing pregnancy we determined birth weight and birth weight percentile. RESULTS: Among 60 formerly preeclamptic women, 45 (75%) were normotensive. Thirty-one (69%) participants succeeded in establishing an ongoing pregnancy within 1 year and were included for final analysis. Of the 31 subsequent pregnancies, 8 (26%) were complicated by fetal growth restriction. Prepregnant left and right uterine artery pulsatility index (PI) correlated inversely with carotid artery compliance ( r = 0.57, P = .005, r = 0.62, P = .002) and venous compliance ( r = 0.49, P = .02 and r = 0.45, P = .04, respectively). The latter, in turn, correlates with plasma volume ( r = 0.63, P = .001) and total peripheral vascular resistance index ( r = -0.45, P = .02). Finally, prepregnant left and right uterine artery PI correlated inversely with subsequent achieved fetal growth ( r = -0.68, P < .0001 and r = -0.58, P = .001, respectively). CONCLUSION: In nonpregnant normotensive, formerly preeclamptic women, an elevated uterine artery PI predisposes to subsequent restriction in fetal growth

Sacrospinous hysteropexy versus vaginal hysterectomy with suspension of the uterosacral ligaments in women with uterine prolapse stage 2 or higher: multicentre randomised non-inferiority trial

OBJECTIVE: To investigate whether uterus preserving vaginal sacrospinous hysteropexy is non-inferior to vaginal hysterectomy with suspension of the uterosacral ligaments in the surgical treatment of uterine prolapse. DESIGN: Multicentre randomised controlled non-blinded non-inferiority trial. SETTING: 4 non-university teaching hospitals, the Netherlands. PARTICIPANTS: 208 healthy women with uterine prolapse stage 2 or higher requiring surgery and no history of pelvic floor surgery. INTERVENTIONS: Treatment with sacrospinous hysteropexy or vaginal hysterectomy with suspension of the uterosacral ligaments. The predefined non-inferiority margin was an increase in surgical failure rate of 7%. MAIN OUTCOME MEASURES: Primary outcome was recurrent prolapse stage 2 or higher of the uterus or vaginal vault (apical compartment) evaluated by the pelvic organ prolapse quantification system in combination with bothersome bulge symptoms or repeat surgery for recurrent apical prolapse at 12 months' follow-up. Secondary outcomes were overall anatomical recurrences, including recurrent anterior compartment (bladder) and/or posterior compartment (bowel) prolapse, functional outcome, complications, hospital stay, postoperative recovery, and sexual functioning. RESULTS: Sacrospinous hysteropexy was non-inferior for anatomical recurrence of the apical compartment with bothersome bulge symptoms or repeat surgery (n=0, 0%) compared with vaginal hysterectomy with suspension of the uterosacral ligaments (n=4, 4.0%, difference -3.9%, 95% confidence interval for difference -8.6% to 0.7%). At 12 months, overall anatomical recurrences, functional outcome, quality of life, complications, hospital stay, measures on postoperative recovery, and sexual functioning did not differ between the two groups. Five serious adverse events were reported during hospital stay. None was considered to be related to the type of surgery. CONCLUSIONS: Uterus preservation by sacrospinous hysteropexy was non-inferior to vaginal hysterectomy with suspension of the uterosacral ligaments for surgical failure of the apical compartment at 12 months' follow-up. TRIAL REGISTRATION: trialregister.nl NTR1866

Risk factors for primary pelvic organ prolapse and prolapse recurrence: an updated systematic review and meta-analysis

OBJECTIVE: To update a previously published systematic review and perform a meta-analysis on the risk factors for primary pelvic organ prolapse and prolapse recurrence. DATA SOURCES: PubMed and Embase were systematically searched. We searched from July 1, 2014 until July 5, 2021. The previous search was from inception until August 4, 2014. STUDY ELIGIBILITY CRITERIA: Randomized controlled trials and cross-sectional and cohort studies conducted in the Western developed countries that reported on multivariable analysis of risk factors for primary prolapse or prolapse recurrence were included. The definition of prolapse was based on anatomic references, and prolapse recurrence was defined as anatomic recurrence after native tissue repair. Studies on prolapse recurrence with a median follow-up of ≥1 year after surgery were included. METHODS: Quality assessment was performed with the Newcastle-Ottawa Scale. Data from the previous review and this review were combined into forest plots, and meta-analyses were performed where possible. If the data could not be pooled, "confirmed risk factors" were identified if ≥2 studies reported a significant association in multivariable analysis. RESULTS: After screening, 14 additional studies were selected-8 on the risk factors for primary prolapse and 6 on prolapse recurrence. Combined with the results from the previous review, 27 studies met the inclusion criteria, representing the data of 47,429 women. Not all studies could be pooled because of heterogeneity. Meta-analyses showed that birthweight (n=3, odds ratio, 1.04; 95% confidence interval, 1.02-1.06), age (n=3, odds ratio, 1.34; 95% confidence interval, 1.23-1.47), body mass index (n=2, odds ratio, 1.75; 95% confidence interval, 1.17-2.62), and levator defect (n=2, odds ratio, 3.99; 95% confidence interval, 2.57-6.18) are statistically significant risk factors, and cesarean delivery (n=2, pooled odds ratio, 0.08; 95% confidence interval, 0.03-0.20) and smoking (n=3, odds ratio, 0.59; 95% confidence interval, 0.46-0.75) are protective factors for primary prolapse. Parity, vaginal delivery, and levator hiatal area are identified as "confirmed risk factors." For prolapse recurrence, preoperative prolapse stage (n=5, odds ratio, 2.68; 95% confidence interval, 1.93-3.73) and age (n=2, odds ratio, 3.48; 95% confidence interval, 1.99-6.08) are statistically significant risk factors. CONCLUSION: Vaginal delivery, parity, birthweight, age, body mass index, levator defect, and levator hiatal area are risk factors, and cesarean delivery and smoking are protective factors for primary prolapse. Preoperative prolapse stage and younger age are risk factors for prolapse recurrence after native tissue surgery

Search for multimessenger sources of gravitational waves and high-energy neutrinos with Advanced LIGO during its first observing run, ANTARES, and IceCube

Astrophysical sources of gravitational waves, such as binary neutron star and black hole mergers or core-collapse supernovae, can drive relativistic outflows, giving rise to non-thermal high-energy emission. High-energy neutrinos are signatures of such outflows. The detection of gravitational waves and high-energy neutrinos from common sources could help establish the connection between the dynamics of the progenitor and the properties of the outflow. We searched for associated emission of gravitational waves and high-energy neutrinos from astrophysical transients with minimal assumptions using data from Advanced LIGO from its first observing run O1, and data from the Antares and IceCube neutrino observatories from the same time period. We focused on candidate events whose astrophysical origins could not be determined from a single messenger. We found no significant coincident candidate, which we used to constrain the rate density of astrophysical sources dependent on their gravitational-wave and neutrino emission processes

ALICE addentum to the Technical Design Report of the time of flight system (TOF)

ALIC