Oral and intestinal dysbiosis in Parkinson's disease

The suspicion of an origin of Parkinson's disease (PD) at the periphery of the body and the involvement of environmental risk factors in the pathogenesis of PD have directed the attention of the scientific community towards the microbiota. The microbiota represents all the microorganisms residing both in and on a host. It plays an essential role in the physiological functioning of the host. In this article, we review the dysbiosis repeatedly demonstrated in PD and how it influences PD symptoms. Dysbiosis is associated with both motor and non-motor PD symptoms. In animal models, dysbiosis only promotes symptoms in individuals genetically susceptible to Parkinson's disease, suggesting that dysbiosis is a risk factor but not a cause of Parkinson's disease. We also review how dysbiosis contributes to the pathophysiology of PD. Dysbiosis induces numerous and complex metabolic changes, resulting in increased intestinal permeability, local and systemic inflammation, production of bacterial amyloid proteins that promote α-synuclein aggregation, as well as a decrease in short-chain fatty acid-producing bacteria that have anti-inflammatory and neuroprotective potential. In addition, we review how dysbiosis decreases the efficacy of dopaminergic treatments. We then discuss the interest of dysbiosis analysis as a biomarker of Parkinson's disease. Finally, we give an overview of how interventions modulating the gut microbiota such as dietary interventions, pro-biotics, intestinal decontamination and fecal microbiota transplantation could influence the course of PD.

Thermomechanical performance of continuous carbon fibre composite materials produced by a modified 3D printer

First of all, this article aimed to evidence the role of a modified printer developed for continuous carbon fibre reinforced PolyAmide (cCF/PA6-I) together with the use of a fully open slicing step on the printing quality and the longitudinal/transverse tensile and in-plane shear properties. A comprehensive assessment of the microstructure and properties with a similar material (cCF/PA6-I), but produced with a commercial printer (i.e., Markforged® MarkTwo) has been achieved. Our customised printer and the open slicer used have made possible to better control the print conditions (i.e., layer height and distance between filaments), to reduce the porosity from more than 10% to about 2% and improve the mechanical properties. Moreover, the understanding of the behaviour of these 3D printed composites with wide-ranging external temperatures is mandatory for future use in a severe environment and/or development of new thermally active 4D printed composites. The 3D printed cCF/PA6-I composites have been then thermomechanically characterised along different printing directions (0, 90 and ± 45°) from -55 to +100 °C. Unlike the longitudinal properties that hardly change with temperature, the transverse and in-plane shear stiffness and strength of these 3D printed composites were particularly sensitive to temperature variations, with decreases of 25-30% and 30-55%, respectively. This was due to the high sensitivity of the polymer matrix, the fibre/matrix and interfilament interfaces when the composites were loaded along those directions, because damages induced by internal thermal stresses. Fractography has also been carried out to reveal damage mechanisms.

Core outcome measures for clinical effectiveness trials of nutritional and metabolic interventions in critical illness: an international modified Delphi consensus study evaluation (CONCISE)

Background

Clinical research on nutritional and metabolic interventions in critically ill patients is heterogenous regarding time points, outcomes and measurement instruments used, impeding intervention development and data syntheses, and ultimately worsening clinical outcomes. We aimed to identify and develop a set of core outcome domains and associated measurement instruments to include in all research in critically ill patients.

Methods

An updated systematic review informed a two-stage modified Delphi consensus process (domains followed by instruments). Measurement instruments for domains considered ‘essential’ were taken through the second stage of the Delphi and a subsequent consensus meeting.

Results

In total, 213 participants (41 patients/caregivers, 50 clinical researchers and 122 healthcare professionals) from 24 countries contributed. Consensus was reached on time points (30 and 90 days post-randomisation). Three domains were considered ‘essential’ at 30 days (survival, physical function and Infection) and five at 90 days (survival, physical function, activities of daily living, nutritional status and muscle/nerve function). Core ‘essential’ measurement instruments reached consensus for survival and activities of daily living, and ‘recommended’ measurement instruments for physical function, nutritional status and muscle/nerve function. No consensus was reached for a measurement instrument for Infection. Four further domains met criteria for ‘recommended,’ but not ‘essential,’ to measure at 30 days post-randomisation (organ dysfunction, muscle/nerve function, nutritional status and wound healing) and three at 90 days (frailty, body composition and organ dysfunction).

Conclusion

The CONCISE core outcome set is an internationally agreed minimum set of outcomes for use at 30 and 90 days post-randomisation, in nutritional and metabolic clinical research in critically ill adults.

Supplementary Information

The online version contains supplementary material available at 10.1186/s13054-022-04113-x.

DNA sequencing analysis of cystic fibrosis transmembrane conductance regulator gene identifies cystic fibrosis-associated variants in the Severe Asthma Research Program

BACKGROUND

Heterozygote carriers of potentially pathogenic variants in the cystic fibrosis transmembrane conductance regulator (CFTR) gene have increased asthma risk. However, the frequency and impact of CFTR variation among individuals with asthma is unknown.

OBJECTIVE

To determine whether potentially pathogenic CFTR variants associate with disease severity and whether individuals with two potentially pathogenic variants exist in a severe asthma-enriched cohort.

METHODS

We analyzed sequencing data spanning a 190.5Kb region of CFTR in participants from the Severe Asthma Research Program (SARP1-3). Potentially pathogenic, rare CFTR variants (frequency < 0.05) were classified as CF-causing or of varying clinical consequences (VVCC) (CFTR2. org). Regression-based models tested for association between CFTR genotypes (0-2 potentially pathogenic variants) and severity outcomes.

RESULTS

Of 1401 participants, 9.5% (134) had one potentially pathogenic variant, occurring more frequently in non-Hispanic white (NHW, 10.1% [84 of 831]) compared to African American individuals (AA, 5.2% [22 of 426]). We found ≥2 potentially pathogenic CFTR variants in 1.4% (19); 0.5% (4) of NHW and 2.8% (12) of AA. Potentially pathogenic CFTR variant genotypes (≥1 or ≥2 variants) were not cumulatively associated with lung function or exacerbations. In NHW, we found three F508del compound heterozygotes with F508del and a VVCC (two 5 T; TG12[c.1210-11 T > G] and one Arg1070Trp) and a homozygote for the VVCC, 5 T; TG12.

CONCLUSIONS

We found potentially pathogenic CFTR variants within a severe asthma-enriched cohort, including three compound heterozygote genotypes variably associated with CF in NHW individuals. These findings provide the rationale for CFTR sequencing and phenotyping of CF-related traits in individuals with severe asthma.

P-247 Fresh oocyte donation, the use of donor sperm, and the number of usable blastocysts are associated with higher clinical pregnancy rates: results from 1655 cycles

Study question

What are the factors associated with clinical pregnancy in the first single embryo transfer of an oocyte donation treatment?

Summary answer

The number of blastocysts and the use of donor sperm were positively correlated with clinical pregnancy, while the use of vitrified/warmed oocytes was negatively correlated.

What is known already

The use of donor oocytes for in vitro fertilization treatments is often necessary to overcome infertility. The number of donor oocytes allocated to each recipient is a key variable to the cumulative success of these treatments. However, time to pregnancy is another key metric in assisted reproduction, and it is important to achieve a better understanding of the factors influencing the success of the first embryo transfer of an oocyte donation treatment.

Study design, size, duration

A retrospective study was conducted to analyze the outcome of the first single blastocyst transfer of 1665 oocyte donation cycles, from 8 private IVF units, from July 2018 to July 2021. Patients who underwent multiple cycles were only included in the study once, during their first treatment. The endpoint of the study was the clinical pregnancy rate, defined by the presence of a gestational sac confirmed by ultrasound one month after the transfer.

Participants/materials, setting, methods

All cycles during the study period, using donor oocytes, resulting in a first fresh or frozen single blastocyst transfer were analyzed. Cases that used PGT-A or sperm from testicular biopsy were excluded. Multiple logistic regression was used to determine the association of the variables: patient age, sperm origin, vitrified/warmed oocytes, fertilization and blastocyst development rate, total number of usable blastocysts obtained, fresh/frozen transfer, and embryonic day at transfer.

Main results and the role of chance

A total of 972 (58.4%) embryo transfers resulted in a clinical pregnancy in the study population. The mean age of the recipient and male partner was 42±4.4 years and 42.1±6.0 years, respectively, and did not differ between positive and negative transfer groups. Statistically significant higher pregnancy rates were observed for day 5 transfers vs. day 6 (59% vs 46%) and fresh vs. vitrified/thawed oocytes (64% vs. 55%). The mean number of zygotes (5.1 vs. 4.8, p = 0.032), the mean fertilization rate (76.3% vs. 72.8%, p = 0.007), the mean usable blastocyst development rate (60.0% vs. 57.7%, p = 0.006) and the mean total number of usable blastocysts (2.9 vs. 2.6, p &lt; 0.001) were higher in clinical pregnancy group.

The results of multiple logistic regression showed that the use of sperm donor increased the chances of achieving a clinical pregnancy rate in the first embryo transfer (OR 1.36, 1.04-1.79), and the use of vitrified/thawed oocytes reduced them (OR 0.69, 0.56-0.85). There was a positive association with a higher number of usable blastocysts obtained in a cycle, and higher pregnancy rates (OR 1.16, 1.07-1.26), presumably by allowing for additional morphological embryo selection.

Limitations, reasons for caution

Certain confounding factors were not accounted for: variability of results between the different IVF units, endometrial preparation protocols, post-warming embryo morphology, sperm analysis diagnostic, as well as variability in recipients’ and donors’ baseline characteristics.

Wider implications of the findings

Factors of an oocyte donation treatment influencing the outcome of the first embryo transfer were identified. A better understanding of these factors, and interactions amongst them, is key to maximize the efficacy of these treatments, and achieve an optimal use of a limited resource such as donated oocytes.

Trial registration number

not applicable

Erratum: Azimuthal Anisotropy of K_{S}^{0} and Λ+Λ[over ¯] Production at Midrapidity from Au+Au Collisions at sqrt[s]_{NN}=130 GeV [Phys. Rev. Lett. 89, 132301 (2002)]

This corrects the article DOI: 10.1103/PhysRevLett.89.132301.

Erratum: Azimuthal Anisotropy at the Relativistic Heavy Ion Collider: The First and Fourth Harmonics [Phys. Rev. Lett. 92, 062301 (2004)]

This corrects the article DOI: 10.1103/PhysRevLett.92.062301.

Management of acute disturbance: The intravenous route

Introduction

The intravenous (IV) is one of the main parenteral routes for drug administration. Rapid onset of action, precise titration, patient-specific dosing and bypass of liver metabolism are a few of its advantages, while hypersensitivity reactions, adverse effects, infection risk and a higher overall cost some of its most debated downsides. Unlike other areas of Medicine, IV has been significantly under-utilized in Psychiatry.

Objectives

This systematic review analyzed the evidence for effectiveness and safety behind the use of IV medication used for the management of acute disturbance.

Methods

APA PsycINFO, MEDLINE, and EMBASE databases were searched for eligible studies. Studies were included if they used IV medication to treat acute disturbance, in English language, had participants aged >18. The quality of the included studies was assessed using the National Institutes of Health quality checklist.

Results

17 studies were deemed eligible. Data analysis was limited to narrative synthesis since primary outcome measures varied significantly between each study. Findings showed strong evidence for efficacy and safety of dexmedetomidine, droperidol, midazolam, and olanzapine. These medications displayed a short time to sedation, reduction in agitation levels, or large percentage of patients adequately sedated with a low number of adverse events. Results did not provide enough evidence for the use of IV ketamine, haloperidol, diazepam, lorazepam, and promethazine.

Conclusions

This review supports dexmedetomidine, droperidol, midazolam, and olanzapine as safe and efficacious options for managing acute disturbance via the intravenous route, particularly in special clinical settings where trained staff, optimal monitoring, resuscitation equipment and ventilators are all at hand.

Estrogen-secreting adrenocortical tumor in a postmenopausal woman: a challenging diagnosis

SUMMARY

Adrenocortical carcinoma (ACC) is a malignant disorder with rapid evolution and severe prognosis in adults and most produce cortisol and androgen. Estrogen-secreting adrenocortical carcinomas are extremely rare, especially in women, tend to be larger and have worse prognosis compared with other types of ACCs. We report the case of a 58-year-old woman who presented with bilateral breast enlargement and postmenopausal genital bleeding. She presented high estradiol (818 pg/mL - 25 times above upper normal limit for postmenopausal women) and testosterone (158 ng/dL - 2 times above upper normal limit) levels and no suppression of cortisol after overnight 1 mg dexamethasone test (12.5 µg/dL; normal reference value: < 1.8 µg/dL). The patient had no clinical features of cortisol excess. MRI showed a 12 cm tumor in the right adrenal. Clinical findings of bilateral breast enlargement and postmenopausal genital bleeding with no signs of hypercortisolism associated with hormonal findings of elevated estradiol and testosterone levels would indicate either an ovarian etiology or an adrenal etiology; however, in the context of plasma cortisol levels non-suppressive after dexamethasone test and the confirmation of an adrenal tumor by MRI, the diagnosis of an adrenal tumor with mixed hormonal secretion was made. The patient underwent an open right adrenalectomy and pathological examination revealed an ACC with a Weiss' score of 6. Estradiol and testosterone levels decreased to normal range soon after surgery. She was put on mitotane treatment as adjuvant therapy, but due to side effects, we were unable to up-titrate the dose and she never achieved serum mitotane dosage above the desired 14 µg/mL. The patient remained in good health without any local recurrence or metastasis until 5 years after surgery, when increased levels of estradiol (81 pg/mL - 2.5 times above upper normal limit) and testosterone (170 ng/dL - 2.1 times above upper normal limit) were detected. MRI revealed a retroperitoneal nodule measuring 1.8 × 1.2 cm. The pathological finding confirmed the recurrence of the estrogen-secreting ACC with a Weiss' score of 6. After the second procedure, patient achieved normal estrogen and androgen serum levels and since then she has been followed for 3 years. The overall survival was 8 years after the diagnosis. In conclusion, although extremely rare, a diagnosis of an estrogen-secreting ACC should be considered as an etiology in postmenopausal women presenting with bilateral breast enlargement, genital bleeding and increased pure or prevailing estrogen secretion.

LEARNING POINTS

Estrogen-secreting adrenocortical carcinomas are exceedingly rare in adults and account for 1-2% of adrenocortical carcinomas. Estrogen-secreting adrenal tumors can be present in females, but are even more rare, we found few cases described in the literature. In women, they present with precocious puberty or postmenopausal bleeding. Feminization in the context of an adrenal tumor is considered almost pathognomonic of malignancy. Feminizing ACCs tend to be larger and with worse prognosis compared with nonfeminizing ACCs.

Upgrading of diesel engine exhaust waste into onion-like carbon nanoparticles for integrated degradation sensing in nano-biocomposites

Onion-like carbon nano particles are separated from diesel engine exhaust “pollutant soot” and used in the structural health monitoring of a biocomposite.

Cobimetinib plus atezolizumab in BRAFV600 wild-type melanoma: primary results from the randomized phase III IMspire170 study

BACKGROUND

Emerging data suggest that the combination of MEK inhibitors and immunotherapeutic agents may result in improved efficacy in melanoma. We evaluated whether combining MEK inhibition and immune checkpoint inhibition was more efficacious than immune checkpoint inhibition alone in patients with previously untreated BRAF^V600 wild-type advanced melanoma.

PATIENTS AND METHODS

IMspire170 was an international, randomized, open-label, phase III study. Patients were randomized 1 : 1 to receive cobimetinib (60 mg, days 1-21) plus anti-programmed death-ligand 1 atezolizumab (840 mg every 2 weeks) in 28-day cycles or anti-programmed death-1 pembrolizumab (200 mg every 3 weeks) alone until loss of clinical benefit, unacceptable toxicity, or consent withdrawal. The primary outcome was progression-free survival (PFS), assessed by an independent review committee in the intention-to-treat population.

RESULTS

Between 11 December 2017, and 29 January 2019, 446 patients were randomized to receive cobimetinib plus atezolizumab (n = 222) or pembrolizumab (n = 224). Median follow-up was 7.1 months [interquartile range (IQR) 4.8-9.9] for cobimetinib plus atezolizumab and 7.2 months (IQR 4.9-10.1) for pembrolizumab. Median PFS was 5.5 months [95% confidence interval (CI) 3.8-7.2] with cobimetinib plus atezolizumab versus 5.7 months (95% CI 3.7-9.6) with pembrolizumab [stratified hazard ratio 1.15 (95% CI 0.88-1.50); P = 0.30]. Hazard ratios for PFS were consistent across prespecified subgroups. In exploratory biomarker analyses, higher tumor mutational burden was associated with improved clinical outcomes in both treatment arms. The most common grade 3-5 adverse events (AEs) were increased blood creatine phosphokinase (10.0% with cobimetinib plus atezolizumab versus 0.9% with pembrolizumab), diarrhea (7.7% versus 1.9%), rash (6.8% versus 0.9%), hypertension (6.4% versus 3.7%), and dermatitis acneiform (5.0% versus 0). Serious AEs occurred in 44.1% of patients with cobimetinib plus atezolizumab and 20.8% with pembrolizumab.

CONCLUSION

Cobimetinib plus atezolizumab did not improve PFS compared with pembrolizumab monotherapy in patients with BRAF^V600 wild-type advanced melanoma.

Evolving concepts in ventral hernia repair and physical therapy: prehabilitation, rehabilitation, and analogies to tendon reconstruction

PURPOSE

The abdominal wall and musculoskeletal tendons share many anatomic, physiologic, and functional characteristics. This review aims to highlight these similar characteristics and to present a rationale why the treatment principles of successful musculoskeletal tendon reconstruction, including principles of surgical technique and physical therapy, can be used in the treatment of complex abdominal wall reconstruction or ventral hernia repair.

METHODS

The MEDLINE/PubMed database was used to identify published literature relevant to the purpose of this review.

CONCLUSIONS

There are several anatomical and functional similarities between the linea alba and musculoskeletal tendons. Because of this reason, many of the surgical principles for musculoskeletal tendon repair and ventral hernia repair overlap. Distribution of tension is the main driving principle for both procedures. Suture material and configuration are chosen to maximize tension distribution among the tissue edges, as seen in the standard of care multistrand repairs for musculoskeletal tendons, as well as in the small bites for laparotomy technique described in the STITCH trial. Physical therapy is also one of the mainstays of tendon repair, but surprisingly, is not routine in ventral hernia repair. The evidence surrounding physical therapy prehabilitation and rehabilitation protocols in other disciplines is significant. This review challenges the fact that these protocols are not routinely implemented for ventral hernia repair, and presents the rationale and feasibility for the routine practice of physical therapy in ventral hernia repair.

Understanding gold toxicity in aerobically-grown Escherichia coli

Background

There is an emerging field to put into practice new strategies for developing molecules with antimicrobial properties. In this line, several metals and metalloids are currently being used for these purposes, although their cellular effect(s) or target(s) in a particular organism are still unknown. Here we aimed to investigate and analyze Au³⁺ toxicity through a combination of biochemical and molecular approaches.

Results

We found that Au³⁺ triggers a major oxidative unbalance in Escherichia coli, characterized by decreased intracellular thiol levels, increased superoxide concentration, as well as by an augmented production of the antioxidant enzymes superoxide dismutase and catalase. Because ROS production is, in some cases, associated with metal reduction and the concomitant generation of gold-containing nanostructures (AuNS), this possibility was evaluated in vivo and in vitro.

Conclusions

Au³⁺ is toxic for E. coli because it triggers an unbalance of the bacterium’s oxidative status. This was demonstrated by using oxidative stress dyes and antioxidant chemicals as well as gene reporters, RSH concentrations and AuNS generation.

Relationship between lower limb asymmetries, impulsion and balance in senior football players

Introduction Football is the most popular sport in the world and there are over 38 million players practicing it worldwide. In this sport, players usually have a prefered lower limb over other. This preference can lead to bilateral asymmetries and improve the risk of injury in the players. It is important to understand if asymmetries have an influence on athletes’ performance, on balance or impulsion.

Objectives The main objective of this study is to evaluate the bilateral and unilateral asymmetries related to the lower limb muscle strength of individuals who practice senior football, and relate them to eventual impulse and balance deficits.

Methodology 11 soccer players (age 21.91 ± 3.14 years; weight: 73.45 ± 7.59 Kg; height: 178.91 ± 8.02; BMI: 22.97 ± 2,12) were evaluated. The protocol defined in this study consisted of collecting data on maximum concentric torque at 60o/s, 180o/s and 300o/s in Biodex System 3. Both lower limbs were tested. Then the Y-balance test was performed on a force platform and the athletes’ flight time were recorded. We also calculated the bilateral deficit between the dominant lower limb and the non-dominant lower limb for the quadriceps and hamstrings and the hamstring/quadriceps (H/Q) ratio for each lower limb

Results There were no statistically significant differences between the maximum torque produced by the dominant lower limb and the maximum force torque produced by the dominant lower limb (p &lt; 0.05). The conventional I / Q ratio has values similar to those described in the literature. The relationship between bilateral asymmetry of lower limb strength, balance and impulsion was not statistically significant (p &gt; 0.05) at any angular velocity.

Conclusion There are no statistically significant differences between bilateral and unilateral asymmetries of lower limb strength, balance and impulsion.

High-pressure homogenization and high hydrostatic pressure processing of human milk: Preservation of immunological components for human milk banks

Human milk (HM) constitutes the first immunological barrier and the main source of nutrients and bioactive components for newborns. Immune factors comprise up to 10% of the protein content in HM, where antibodies are the major components (mainly IgA, IgG, and IgM). In addition, antibacterial enzymes such as lysozyme and immunoregulatory factors such as soluble cluster of differentiation 14 (sCD14) and transforming growth factor β2 (TGF-β2) are also present and play important roles in the protection of the infant's health. Donor milk processed in HM banks by Holder pasteurization (HoP; 62.5°C, 30 min) is a safe and valuable resource for preterm newborns that are hospitalized, but is reduced in major immunological components due to thermal inactivation. We hypothesized that high hydrostatic pressure (HHP) and high-pressure homogenization (HPH) are 2 processes that can be used on HM to reduce total bacteria counts while retaining immunological components. We studied the effects of HHP (400, 450, and 500 MPa for 5 min applied at 20°C) and HPH (200, 250, and 300 MPa, milk inlet temperature of 20°C) applied to mature HM, on microbiological and immunological markers (IgA, IgG, IgM, sCD14, and TGF-β2), and compared them with those of traditional HoP in HM samples from healthy donors. The HHP processing between 400 and 500 MPa at 20°C reduced counts of coliform and total aerobic bacteria to undetectable levels (<1.0 log cfu/mL) while achieving approximately 100% of immunological component retention. In particular, comparing median percentages of retention of immunological components for 450 MPa versus HoP, we found 101.5 versus 50.5% for IgA, 89.5 versus 26.0% for IgM, 104.5 versus 75.5% for IgG, 125.0 versus 72.5% for lysozyme, 50.6 versus 0.1% for sCD14, and 88.5 versus 61.1% for TGF-β2, respectively. Regarding HPH processing, at a pressure of 250 MPa and inlet temperature of 20°C, the process showed good potential to reduce coliforms to undetectable levels and total aerobic bacteria to levels slightly above those obtained by HoP. The median percentages of retention of immunological markers for HPH versus HoP were 71.5 versus 52.0%, 71.0 versus 27.0%, 104.0 versus 66.5%, and 30.9 versus 0.2%, for IgA, IgM, IgG, and sCD14, respectively; results did not significantly differ for lysozyme and TGF-β2. The HPH at 300 MPa produced higher inactivation of immunological components, similar to values achieved with HoP.

A Brazilian multicentre study evaluating pregnancies induced by cabergoline in patients harboring prolactinomas

OBJECTIVE

To evaluate the maternal-fetal outcomes of CAB-induced pregnancies in patients with prolactinoma in a large cohort.

METHODS

The prevalence of tumor growth, miscarriage, preterm, low birth weight, congenital malformations and impairment in neuropsychological development in children among women treated with CAB were assessed in a Brazilian multicentre retrospective observational study, RESULTS: We included 194 women with a mean age of 31 (17-45) years, 43.6% presenting microadenomas and 56.4% macroadenomas, at prolactinoma diagnosis. In 233 pregnancies, CAB was withdrawn in 89%, after pregnancy confirmation. Symptoms related to tumor growth occurred in 25 cases, more frequently in macroadenomas. The overall miscarriage rate was 11%, although higher in the subgroup of patients with CAB maintainance after pregnancy confirmation (38% vs. 7.5%). Amongst the live-birth deliveries, preterm occurred in 12%, low birth weight in 6% and congenital malformations in 4.3%. Neuropsychological development impairment was reported in 7% of cases.

CONCLUSIONS

Our findings confirm previous results of safety in maternal and fetal outcomes in CAB-induced pregnancies; nevertheless, CAB maintenance after pregnancy confirmation was associated with higher miscarriage rate; result that must be further confirmed.

P1598 Ruptured Sinus of Valsalva: clinical and echocardiographic features at presentation and long-term results after surgical and percutaneous repair

Background

Rupture of Sinus of Valsalva (rSOV) is a rare and potentially life-threatening condition often misdiagnosed. Percutaneous device closure has been replacing surgical repair as a treatment of choice. However, long-term outcome is poorly documented.

Methods

Echo database (2001-2019) was searched for patients &gt;16y with rSOV. Clinical data were collected from ACHD database. Marfan Syndrome patients were excluded.

Results

Fifteen patients (42.2y, 10M) were diagnosed with rSOVbetween 1979 and 2019. HF symptoms at initial presentation were reported in 50%. All cases were diagnosed by TTE with finding of high velocity continuous flow from SOV to right heart. Two were initially misdiagnosed as VSD. Digital imaging recordings of 10/15 were available. The aortic root was dilated in 8/10. Four had asymmetrical SOV dilatation. LV and LA were dilated in 7/10 and 9/10. Significant aortic regurgitation was in 4. Two had RVOTO. RVSP was always raised. Echo findings are summarised in the Table.

Mean FU after repair was 10,7y (0,9-39). Ten patients had surgical repair and 5 device closure. Seven had repair of concomitant lesions (4 VSD closure and 3 AVR) at the time of the procedure. One redo device closure was performed. During FU 1 died from Cardiomyopathy. At the latest FU significant improvement in functional class, LV and LA size and RVSP was found.

Conclusion

Patients with rSOV may present with acute HF. High velocity continuous flow from SOV to right heart on TTE is characteristic feature for diagnosis. Percutaneous closure is an attractive alternative to surgery in patients with isolated lesion. Significant haemodynamic improvement can be achieved with good long-term haemodynamic results

Tot = 15 Initial findings Latest FU NYHA class 4 class I 2 class II 2 class III 4 class IV 3 unknown 11 class I 2 class II 1 class III 0 class IV* SOV (mm) 38.2 (33-44) STJ (mm) 36.2 (26-42 Asc Ao (mm) 30.3 (25-34) rupture site 8 RC sinus, 2 NC sinus Shunt to 8 RVOT, 1 RA, 1 RVOT + RA LVEDV (ml) 169.7 (114-330) 120 (67-230)* LVESV (ml) 66(42-130) 46 (28-80)* LAVi (ml/m2) 53.1 (30-129) 35 (24-53)* LV EF% 61.2 (57-65) 60.4 (50-70) RVSP (mmHg) 53.2 (37-130) 24.06 (15-32)** Pre VS post procedure p-value: * P &lt; 0,05 **P &lt; 0,01

Abstract P1598 Figure. PLAX in patient with ruptured RC sinus

Predictive capacity of prodromal symptoms in first-episode psychosis of recent onset

BACKGROUND

Both the nature and number of a wide range of prodromal symptoms have been related to the severity and type of psychopathology in the psychotic phase. However, at present there is an incomplete picture focused mainly on the positive pre-psychotic dimension.

AIM

To characterize the prodromal phase retrospectively, examining the number and nature of prodromal symptoms as well as their relationship with psychopathology at the onset of first-episode psychosis.

METHODS

Retrospective study of 79 patients experiencing a first-episode psychosis of less than 1 year from the onset of full-blown psychosis. All patients were evaluated with a comprehensive battery of instruments including socio-demographic and clinical questionnaire, IRAOS interview, PANSS, stressful life events scale (PERI) and WAIS/WISC (vocabulary subtest). Bivariate associations and multiple regression analysis were performed.

RESULTS

Regression models revealed that several prodromal dimensions of IRAOS (delusions, affect, language, behaviour and non-hallucinatory disturbances of perception) predicted the onset of psychosis, with positive (22.4% of the variance) and disorganized (25.6% of the variance) dimensions being the most widely explained.

CONCLUSION

In addition to attenuated positive symptoms, other symptoms such as affective, behavioural and language disturbances should also be considered in the definitions criteria of at-high-risk people.

OR19-3 Utility of the Levothyroxine Absorption Test: The Mayo Clinic Experience

Introduction: While hormone replacement with levothyroxine (LT4) is the most effective management for hypothyroidism, there is a subset of patients who remain hypothyroid despite high doses of LT4. These patients warrant evaluation for conditions that may contribute to poor LT4 absorption. Several case reports have documented a condition known as LT4 pseudomalabsorption, a factitious disorder in which overt hypothyroidism persists despite endorsed medication adherence and absent evidence for gastrointestinal malabsorption. LT4 absorption testing (LT4AT) is a non-invasive method for effectively distinguishing malabsorption from pseudomalabsorption. Given the lack of standardization of this test and the morbidity associated with uncontrolled hypothyroidism, we reviewed our institution’s experience with LT4AT and investigated the impact of this test on long-term management in patients with primary refractory hypothyroidism. Methods: We conducted chart reviews between 2015 to 2018 for patients who had undergone LT4AT at our institution for primary refractory hypothyroidism. Pertinent information collected included medications known to interfere with LT4 absorption or metabolism, adherence and timing of ingestion in relation to food intake, and comorbidities including celiac disease, heart failure, nephrotic syndrome, cirrhosis, gastritis, or short bowel syndrome. Our LT4AT protocol involves observed administration of LT4 dosed according to age and BMI (600mcg, 1000mcg, or 1500mcg). Total thyroxine is measured at baseline, 1 hour, 2 hours, 3 hours, 4 hours, and 6 hours. TSH is measured at baseline and at 6 hours. Percent LT4 absorption is calculated using the following formula: [[Increment TT4 (mcg/dL) x 10] / total administered LT4 (mcg)]] x Vd (L) x100. Absorption of >60% is considered normal. Results: Fifteen patients completed LT4AT during the search period, and 14 demonstrated normal absorption. One patient had virtually no LT4 absorption and was diagnosed with atrophic gastritis. Ten patients had follow up ranging from 2 months to 2 years. Three achieved normal TSH values within one year, 5 demonstrated improvement, but had yet to achieve TSH normalization, and 2 remained poorly controlled. Direct observation of LT4 administration was performed in 2 patients, both of whom achieved a normal TSH at 3 and 7 months, respectively. Conclusions: Our review confirms the utility of LT4AT for differentiating pseudomalabsorption from gastrointestinal malabsorption. Most of our patients had improvement in thyroid function during follow up, contending that performance of this test may enhance compliance by establishing an objective framework from which both clinicians and patients can work to develop effective, long-term management strategies.

[Psychomotor development from 0 to 4 years in indigenous children. A sistematic literature search]

INTRODUCTION

The objective of this study was to evaluate published articles regarding the development of indigenous children aged 0 to four years.

SUBJECTS AND METHOD

Systematic literature search. Parti cipants: Primary studies with populations of indigenous children aged 0 to four years. Type of studies: Primary studies with qualitative or quantitative methodologies published in the last ten years until November 2015. Databases: MEDLINE, Digital Library of the University of Girona: CERCADOR, EMBASE, Scielo.

SEARCH STRATEGY

sensitive and specific. Free terms, MeSH, and Boolean.

RESULTS

Nine articles remain for analysis. There are six central subjects related to intracultural patterns of expected development in indigenous childhood: 1) physical, 2) language, 3) socio-cognitive, 4) emo tional, 5) teaching-learning, 6) psychosocial, which reveal the existence of categories of sociocultural and spiritual contents. There is no defined period of time associated with the education. Learning is through observation and participation. Development is understood as a whole, intertwining the social, cultural, natural and spiritual.

CONCLUSION

Spirituality and nature are at the center. Time as a goal to gain skills does not have a cultural function to demonstrate the acquisition of the inherent va lues to the culture. To base the assessment of development exclusively on psychomotor development as monitoring guide is insufficient to assess the integrality and complexity of the advances, abilities, and skills of indigenous children.