Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 38
Filtrar
1.
Artículo en Inglés | MEDLINE | ID: mdl-39485056

RESUMEN

OBJECTIVE: To identify the key risk factors contributing to re-hospitalization after term cesarean delivery (CD). METHODS: This retrospective cohort study included women who underwent CD at term at a university-affiliated tertiary medical center (January 2021 to March 2023). The primary outcome was risk factors for re-hospitalization within 30 days post-discharge. Data on selected maternal demographic, pregnancy-related and delivery variables were extracted from electronic medical records. A multivariable logistic regression analysis was conducted to identify independent risk factors for re-hospitalization. Logistic regression analysis was used to determine the odds ratios (ORs) and 95% confidence intervals (CIs) for various independent risk factors. RESULTS: A total of 2878 women were included in the study, of whom 76 required re-hospitalization (2.6%). The rates of high-risk pregnancies were more prevalent among those who were re-hospitalized (41 [62.1%] vs. 1148 [49.1%], P = 0.043). Furthermore, the rates of emergency CDs (42 [56%] vs. 1040 [37.8%], P = 0.001), prolonged surgery duration (17 [22.4%] vs. 292 [10.4%], P = 0.001) and hospitalization duration (14 (18.4%) vs. 273 (9.7%), P = 0.015) were significantly higher in the re-hospitalized group. Emergency CD (OR 1.90, 95% CI 1.06-3.42, P = 0.030) and prolonged surgery duration (OR 2.44, 95% CI 1.25-4.77, P = 0.016) remained significant risk factors of re-hospitalization in the multivariate analysis. CONCLUSIONS: The need for emergency CD and prolonged surgery duration were found as independent risk factors for re-hospitalization after CD at term.

2.
J Voice ; 2024 Oct 10.
Artículo en Inglés | MEDLINE | ID: mdl-39393954

RESUMEN

OBJECTIVES: This study aims to examine the association between voice experience and levels of depression, anxiety, and stage of gender affirmation in transgender women. STUDY DESIGN: A cross-sectional study. METHODS: Adult transgender women attending a tertiary referral center were recruited between April 2022 and January 2023. They filled in a demographic and health survey, the Hebrew Trans Woman Voice Questionnaire (H-TWVQ), the Hebrew Patient Health Questionnaire, and the Hebrew version of the Generalized Anxiety Disorder Screener. Descriptive statistics and data regarding the associations between voice experience, grades of anxiety and depression, and stage of gender affirmation were compiled. RESULTS: Sixty-seven transgender women were included (mean age 26.7 ± 7.78 years, mean time of presenting socially as a woman 5.2 ± 5.2 years). The median H-TWVQ score was 71 (maximal score 120). Most participants reported mild anxiety and mild depression levels. Those who reported a more positive voice experience (H-TWVQ score ≤71) had lower median depression and anxiety scores than participants with a less-positive voice experience (H-TWVQ score >71) (P = 0.028 vs P = 0.044, respectively), complained less of hoarseness (2.9% vs 19.4%, P = 0.045,) and more were employed (78.8% vs 41.9%, P = 0.003). No association was found between voice experience and cross-sex hormone treatment, affirmation surgery undertaken, or number of years presenting socially as a woman. CONCLUSIONS: We observed a potential association between better voice experience and lower anxiety and depression levels among transgender women. No association was found between voice experience and the stage of gender affirmation. Physicians treating this population should be aware of these associations and consider therapeutic means for voice adjustment.

3.
Artículo en Inglés | MEDLINE | ID: mdl-39183120

RESUMEN

This retrospective study describes the surgical outcomes of our first 20 transgender women to undergo feminization thyroid laryngochondroplasty (FLC) by a direct transvestibular FLC (DTV-FLC) approach from December 2019 to October 2023. The medical records of all patients were retrieved and reviewed. Data on the operative, postoperative, and follow-up courses, complications, and functional and cosmetic outcomes were retrieved. The cosmetic results were evaluated by four independent facial plastic surgeons. Thirteen patients underwent DTV-FLC combined with genioplasty or genioplasty with mandibular angle reduction and seven underwent isolated DTV-FLC. DTV-FLC was feasible in all planned cases. Complications (skin flap perforation, thyroid cartilage fracture, mental hypoesthesia, hematoma, dehiscence of the vestibular incision, vestibular scar adhesions, and anemia) were minor and resolved spontaneously. The preoperative grade of thyroid cartilage protrusion was 1.9 ± 0.9 on a scale from 1 to 3. The postoperative cosmetic results of 18 patients were judged as having improved (a score of 2.1 ± 0.8 on a scale from -1 to 3). Eighteen patients were satisfied with the cosmetic result, one was dissatisfied (the revision surgery patient), and one was lost to follow-up. In conclusion, DTV-FTLC is a valid surgical approach for FLC, yielding high patient satisfaction and good cosmetic results.

4.
Front Pediatr ; 12: 1256445, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38374878

RESUMEN

Background: Spinal Muscular Atrophy (SMA) is manifested by deformation of the chest wall, including a bell-shaped chest. We determined the ability of a novel non-ionizing, non-volitional method to measure and quantify bell-shaped chests in SMA. Methods: A 3D depth camera and a chest x-ray (CXR) were used to capture chest images in 14 SMA patients and 28 controls. Both methods measure the distance between two points, but measurements performed by 3D analysis allow for the consideration of the curve of a surface (geodesic measurements), whereas the CXR allows solely for the determination of the shortest path between two points, with no regard for the surface (Euclidean measurements). The ratio of the upper to lower chest distances was quantified to distinguish chest shape in imaging by both the 3D depth camera and the CXR, and the ratios were compared between healthy and SMA patients. Results: The mean 3D Euclidean ratio of distances measured by 3D imaging was 1.00 in the control group and 0.92 in the SMA group (p = 0.01), the latter indicative of a bell-shaped chest. This result repeated itself in the ratio of geodesic measurements (0.99 vs. 0.89, respectively, p = 0.03). Conclusion: The herein-described novel, noninvasive 3D method for measuring the upper and lower chest distances was shown to distinguish the bell-shaped chest configuration in patients with SMA from the chests of controls. This method bears several advantages over CXR and may be readily applicable in clinical settings that manage children with SMA.

5.
Plast Reconstr Surg ; 153(2): 467-476, 2024 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-37075278

RESUMEN

BACKGROUND: Feminization laryngochondroplasty (FLC) methods have evolved from using a midcervical incision to a submental, less visible incision. The scar may be unacceptable to the patient because it signals gender reassignment surgery. An endoscopic transoral approach to FLC inspired by transoral endoscopic thyroidectomy was recently suggested to avoid the neck scar; however, it requires special equipment and has a long learning curve. A vestibular incision is used to approach the chin in lower-third facial feminization surgery. The authors propose that this incision may be extended to the thyroid cartilage in performing direct FLCs. The authors describe their experience with a novel, minimally invasive, direct transvestibular use of the chin-reshaping incision. METHODS: The medical records of all patients who underwent direct transvestibular FLC (DTV-FLC) from December of 2019 to September of 2021 were retrieved and reviewed for this retrospective cohort study. Data on the operative, postoperative, and follow-up courses, complications, and functional and cosmetic results were retrieved. RESULTS: Nine transgender women were included. Seven DTV-FLCs were performed during lower-third facial feminization surgery, and two were isolated DTV-FLCs. One was a revision DTV-FLC. Transient minor complications were encountered and resolved by the postoperative visit at 1 to 2 months. Vocal fold function and voice quality remained intact. Eight available patients were satisfied with the surgical results. A blinded assessment by eight plastic surgeons determined that seven procedures were successful. CONCLUSION: The novel DTV-FTLC approach either in isolation or as part of lower-third facial feminization surgery facilitated scar-free FLC with satisfactory cosmetic and functional results. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.


Asunto(s)
Feminización , Glándula Tiroides , Masculino , Humanos , Femenino , Glándula Tiroides/cirugía , Estudios Retrospectivos , Feminización/cirugía , Tiroidectomía/efectos adversos , Tiroidectomía/métodos , Cuello
6.
Eur J Radiol Open ; 10: 100493, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37252005

RESUMEN

Objectives: The purpose of this study is to evaluate the effectiveness of changing the teaching method in the radiology course at a medical school from lecture-based learning to clinically case-based learning using interactive methods, with the aim to improve undergraduate radiology education and students' diagnostic abilities. Methods: During the 2018-2019 academic year, we compared the achievements of medical students in the radiology course. Teaching in the first year was primarily conducted through conventional lectures (traditional course; TC), while in the following year, a case-based teaching approach along with an interactive web application called "Nearpod" (clinically-oriented course; COC) was employed to motivate student participation. The student knowledge assessments were composed of identical post-test questions, which included five images of common diagnoses. The results were compared using Pearson's Chi-Square test or Fisher Exact Test. Results: There were 72 students who answered the post-test in the first year and 55 students responded in the second year. Post-test student achievements following the methodological changes were significantly higher as compared with the control group in the total grade (65.1 ± 21.5 vs. 40.8 ± 19.1, p < 0.001). An improvement in the identification rates of all assessed cases was noticed, with the most prominent improvement in pneumothorax recognition (4.2% vs. 61.8%, p < 0.001). Conclusion: Teaching radiology using clinical case-based teaching methods combined with web-based interactive applications like Nearpod results in significant improvements in identifying key imaging pathologies when compared to traditional teaching methods. This approach has the potential to enhance radiology learning and better prepare students for their future roles as clinicians.

7.
Prehosp Emerg Care ; 27(5): 586-591, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36074122

RESUMEN

BACKGROUND: While commonly thought to be effective for management of limb and junctional hemorrhage, the manual pressure points technique was excluded from leading prehospital guidelines over a decade ago following the publication of a single human-volunteers study presenting unfavorable results. This work aimed to re-assess the efficacy and feasibility of the femoral and supraclavicular pressure points technique for temporary hemorrhage control distal to the pressure point. METHODS: A prospective, non-randomized, human volunteer, controlled environment study. In the study 35 healthy male combat medics (age 21.1 ± 1.3 years) received brief training after which they were requested to apply pressure in the femoral and supraclavicular points in attempts to stop regional blood flow, measured distally by Doppler ultrasound. Success rates in achieving flow cessation in under 2 minutes, time required for achievement of flow cessation, and cumulative flow cessation duration within a 3-minute follow-up after initial success were measured. RESULTS: For the supraclavicular point, success rates were 97.1% with a mean time to success of 12.5 (±20.9) seconds, lasting for 76.2% (±23.7) of the follow-up time. For the femoral point, success rates were 100% with a mean time to success of 5.5 (±4.3) seconds, lasting for 98.7% (±3.8) of the follow-up time. CONCLUSIONS: Manual pressure on the femoral and supraclavicular points is an applicable and efficient method for temporary hemorrhage control distal to the pressure point. As such, with additional study, this method may be considered for re-introduction to prehospital care guidelines and training programs.


Asunto(s)
Servicios Médicos de Urgencia , Humanos , Masculino , Adulto Joven , Adulto , Estudios Prospectivos , Voluntarios Sanos , Servicios Médicos de Urgencia/métodos , Arteria Femoral , Hemorragia/terapia
8.
Health Promot Int ; 38(3)2023 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-35578836

RESUMEN

While many military positions are characterized by rigorous routines and long-hour shifts, some positions also require the practice of sensitivity and empathy alongside diligence and attention. Prolonged exposure to such conditions may promote emotional exhaustion, depersonalization and diminished self-accomplishment perception, all part of work-related burnout which may affect soldiers' ability to practice their duty. The service in the Israel Defense Forces (IDF) checkpoint unit is an example of such conditions due to the soldiers' constant interaction with civilian population. In this questionnaire-based cross-sectional study which included 404 responders from the IDF checkpoint battalions, we examined the effects of demographical, situational and personal variables on soldiers' burnout. A hierarchical multivariate linear regression (R2 = 0.47) identified sense of coherence, the core concept in the salutogenic model of health, as the most prominent protective factor, followed by service motivation and perceived well-being (WB). Taken together, the results revealed several factors associated with military work-related burnout. These findings can serve as a base for burnout prevention programs, which may potentially improve not only the soldiers' WB but also the interfaces between military and civilian populations.


Asunto(s)
Agotamiento Profesional , Personal Militar , Sentido de Coherencia , Humanos , Personal Militar/psicología , Israel , Estudios Transversales , Agotamiento Profesional/psicología , Adaptación Psicológica
9.
Int J Mol Sci ; 25(1)2023 Dec 28.
Artículo en Inglés | MEDLINE | ID: mdl-38203593

RESUMEN

α1-Antitrypsin (AAT), an acute-phase reactant not unsimilar to C-reactive protein (CRP), is a serine protease inhibitor that harbors tissue-protective and immunomodulatory attributes. Its concentrations appropriately increase during conditions of extensive tissue injury, and it induces immune tolerance, in part, by inhibiting the enzymatic activity of the inflammatory serine protease, proteinase 3 (PR3). Typically administered to patients with genetic AAT deficiency, AAT treatment was recently shown to improve outcomes in patients with steroid-refractory graft-versus-host disease (GVHD). GVHD represents a grave outcome of allogeneic hematopoietic stem cell transplantation (HSCT), a potentially curative intervention for hematological diseases. The procedure requires radio/chemotherapy conditioning of the prospective marrow recipient, a cytotoxic process that causes vast tissue injury and, in some formats, interferes with liver production of AAT. To date, changes in the functional profile of AAT during allogeneic HSCT, and during the cytotoxic intervention that precedes HSCT, are unknown. The present study followed 53 patients scheduled for allogeneic HSCT (trial registration NCT03188601). Serum samples were tested before and after HSCT for AAT and CRP levels and for intrinsic anti-proteolytic activity. The ex vivo response to clinical-grade AAT was tested on circulating patient leukocytes and on a human epithelial cell line treated with patient sera in a gap closure assay. According to the ex vivo experiments, circulating leukocytes responded to AAT with a favorable immune-regulated profile, and epithelial gap closure was enhanced by AAT in sera from GVHD-free patients but not in sera from patients who developed GVHD. According to serum collected prior to HSCT, non-relapse mortality was reliably predicted by combining three components: AAT and CRP levels and serum anti-proteolytic activity. Taken together, HSCT outcomes are significantly affected by the anti-proteolytic function of circulating AAT, supporting early AAT augmentation therapy for allogeneic HSCT patients.


Asunto(s)
Enfermedad Injerto contra Huésped , Trasplante de Células Madre Hematopoyéticas , Humanos , Estudios Prospectivos , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Serina Proteasas , Serina Endopeptidasas , Enfermedad Injerto contra Huésped/etiología , Enfermedad Injerto contra Huésped/prevención & control
10.
Children (Basel) ; 9(9)2022 Aug 29.
Artículo en Inglés | MEDLINE | ID: mdl-36138625

RESUMEN

Epidural analgesia is effective and an accepted treatment for postoperative pain. Urinary retention is a known complication, but its description is mostly in the adult literature. Management of urinary catheter (UC) placement and removal is an important consideration in children receiving epidural analgesia. This is a single-center, retrospective observational study which examined UC management in children undergoing lower extremity orthopedic surgery under general anesthesia with or without epidural analgesia from January 2019−June 2021. Of 239 children included, epidural analgesia was used in 57 (23.8%). They were significantly younger and had more co-morbidities. In total, 75 UCs were placed in the OR, 9 in the ward, and 7 re-inserted. UC placement in the epidural group was more common (93% vs. 17%, p < 0.001) and remained longer (3 days vs. 1 day, p = 0.01). Among children without intra-operative UC, ward placement was more common in the epidural cohort (60% vs. 1.6%, p = 0.007). OR UC placement and ward re-insertion were more common in children with neuromuscular disease (61% vs. 22%, p < 0.001), (17% vs. 3%, p = 0.001), respectively. Based on these findings, we hypothesize that it is justifiable to routinely place a UC intra-operatively in children who undergo hip or lower extremity surgery and are treated with epidural analgesia, and caution is advised before early UC removal in orthopedic children with NMD.

11.
Int J Mol Sci ; 23(13)2022 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-35806370

RESUMEN

Wound healing requires a non-compromising combination of inflammatory and anti-inflammatory processes. Human α1-antitrypsin (hAAT), a circulating glycoprotein that rises during acute-phase responses and during healthy pregnancies, is tissue-protective and tolerance-inducing; although anti-inflammatory, hAAT enhances revascularization. hAAT blocks tissue-degrading enzymes, including neutrophil elastase; it is, therefore, unclear how wound healing might improve under hAAT-rich conditions. Here, wound healing was examined in the presence of recombinant hAAT (hAATWT) and protease-inhibition-lacking hAAT (hAATCP). The impact of both hAAT forms was determined by an epithelial cell gap closure assay, and by excisional skin injuries via a microemulsion optimized for open wounds. Neutrophilic infiltration was examined after 8 h. According to results, both hAAT forms accelerated epithelial gap closure and excisional wound closure, particularly at early time points. Unlike dexamethasone-treated wounds, both resulted in closed borders at the 8-h time point. In untreated and hAATCP-treated wounds, leukocytic infiltrates were widespread, in hAATWT-treated wounds compartmentalized and in dexamethasone-treated wounds, scarce. Both hAAT forms decreased interleukin-1ß and increased VEGF gene expression. In conclusion hAAT improves epithelial cell migration and outcomes of in vivo wounds irrespective of protease inhibition. While both forms of hAAT allow neutrophils to infiltrate, only native hAAT created discrete neutrophilic tissue clusters.


Asunto(s)
Neutrófilos , Cicatrización de Heridas , Dexametasona , Humanos
12.
Nitric Oxide ; 124: 68-73, 2022 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-35597408

RESUMEN

OBJECTIVE: To assess the feasibility of Fractional exhaled Nitric Oxide (FeNO) as a simple, non-invasive, cost-effective and portable biomarker and decision support tool for risk stratification of COVID-19 patients. METHODS: We conducted a single-center prospective cohort study of COVID-19 patients whose FeNO levels were measured upon ward admission by the Vivatmo-me handheld device. Demographics, COVID-19 symptoms, and relevant hospitalization details were retrieved from the hospital databases. The patients were divided into those discharged to recover at home and those who died during hospitalization or required admission to an intensive care unit, internal medicine ward, or dedicated facility (severe outcomes group). RESULTS: Fifty-six patients were enrolled. The only significant demographic difference between the severe outcomes patients (n = 14) and the home discharge patients (n = 42) was age (64.21 ± 13.97 vs. 53.98 ± 15.57 years, respectively, P = .04). The admission FeNO measurement was significantly lower in the former group compared with the latter group (15.86 ± 14.74 vs. 25.77 ± 13.79, parts per billion [PPB], respectively, P = .008). Time to severe outcome among patients with FeNO measurements ≤11.8 PPB was significantly shorter compared with patients whose FeNO measured >11.8 PPB (19.25 ± 2.96 vs. 24.41 ± 1.09 days, respectively, 95% confidence interval [CI] 1.06 to 4.25). An admission FeNO ≤11.8 PPB was a significant risk factor for severe outcomes (odds ratio = 12.8, 95% CI: 2.78 to 58.88, P = .001), with a receiver operating characteristics curve of 0.752. CONCLUSIONS: FeNO measurements by the Vivatmo-me handheld device can serve as a biomarker and COVID-19 support tool for medical teams. These easy-to-use, portable, and noninvasive devices may serve as valuable ED bedside tools during a pandemic.


Asunto(s)
COVID-19 , Espiración , Biomarcadores , Pruebas Respiratorias , COVID-19/diagnóstico , Prueba de Óxido Nítrico Exhalado Fraccionado , Humanos , Óxido Nítrico , Estudios Prospectivos , Índice de Severidad de la Enfermedad
13.
Pediatr Pulmonol ; 57(6): 1425-1431, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35307986

RESUMEN

OBJECTIVES: To investigate whether the three nationwide coronavirus disease 2019 (COVID-19) lockdowns imposed in Israel during the full first pandemic year altered the traditional seasonality of pediatric respiratory healthcare utilization. METHODS: Month by month pediatric emergency department (ED) visits and hospitalizations for respiratory diagnoses during the first full COVID-19 year were compared to those recorded for the six consecutive years preceding the pandemic. Data were collected from the patients' electronic files by utilizing a data extraction platform (MDClone© ). RESULTS: A significant decline of 40% in respiratory ED visits and 54%-73% in respiratory hospitalizations during the first COVID-19 year compared with the pre-COVID-19 years were observed (p < 0.001 and p < 0.001, respectively). The rate of respiratory ED visits out of the total monthly visits, mostly for asthma, peaked during June 2020, compared with proceeding years (109 [5.9%] versus 88 [3.9%] visits; p < 0.001). This peak occurred 2 weeks after the lifting of the first lockdown, resembling the "back-to-school asthma" phenomenon of September. CONCLUSIONS: This study demonstrates important changes in the seasonality of pediatric respiratory illnesses during the first COVID-19 year, including a new "back-from-lockdown" asthma peak. These dramatic changes along with the recent resurgence of respiratory diseases may indicate the beginnings of altered seasonality in pediatric pulmonary pathologies as collateral damage of the pandemic.


Asunto(s)
Asma , COVID-19 , Asma/epidemiología , COVID-19/epidemiología , Niño , Control de Enfermedades Transmisibles , Servicio de Urgencia en Hospital , Humanos , Pandemias , Estudios Retrospectivos
14.
Eur J Med Chem ; 228: 113969, 2022 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-34763945

RESUMEN

Human α1-antitrypsin (hAAT) has two distinguishing functions: anti-protease activity and regulation of the immune system. In the present study we hypothesized that those two protein functions are mediated by different structural domains on the hAAT surface. Indeed, such biologically active immunoregulatory sites (not associated with canonical anti-protease activity) on the surface of hAAT were identified by in silico methods. Several peptides were derived from those immunoregulatory sites. Four peptides exhibited impressive biological effects in pharmacological concentration ranges. Peptidomimetic (14) was developed, based on the structure of the most druggable and active peptide. The compound exhibited a potent anti-inflammatory activity in vitro and in vivo. Such a compound could be used as a basis for developing novel anti-inflammatory drug candidates and as a research tool for better understanding hAAT functions.


Asunto(s)
Antiinflamatorios/farmacología , Desarrollo de Medicamentos , Peptidomiméticos/farmacología , alfa 1-Antitripsina/metabolismo , Antiinflamatorios/síntesis química , Antiinflamatorios/química , Relación Dosis-Respuesta a Droga , Humanos , Estructura Molecular , Peptidomiméticos/síntesis química , Peptidomiméticos/química , Relación Estructura-Actividad , alfa 1-Antitripsina/química
15.
J Clin Med ; 10(20)2021 Oct 11.
Artículo en Inglés | MEDLINE | ID: mdl-34682778

RESUMEN

Advancements in surgical techniques and increased life expectancy have made cataract surgery more common among very old patients. However, surgical outcomes seem impaired in patients older than 90 years, especially with ocular comorbidities. A retrospective case-control study of 53 eyes of 53 very old patients (mean 92.6 ± 3.0) and 140 eyes of 140 matched patients (mean 75.2 ± 7.6) was undertaken. Groups were matched in terms of gender and systemic and ocular comorbidities. In very old patients, higher phacoemulsification energy (cumulative dissipated energy [CDE], 25.0 ± 22.4 vs. 16.1 ± 10.7, p = 0.01) and rate of intraoperative floppy iris syndrome (IFIS, 9.4% vs. 1.4%, p = 0.02) were observed compared to controls. Uncorrected (UCVA) and best-corrected distance visual acuity (BCVA) gains were significantly poorer among the very old patients than among the control at postoperative day 30 (0.20 ± 0.70 vs. 0.56 ± 0.61 logMAR, p < 0.001 and 0.27 ± 0.64 vs. 0.55 ± 0.62 logMAR, p = 0.006, respectively). Even after including CDE and IFIS as covariates, age remained an independent factor for poor visual gain at 30 days (p < 0.001). Cataract surgery in very old patients may demand more experienced surgeons due to higher nuclear density and the rates of IFIS. Expectations in visual acuity gains should be aligned with the patient's age.

16.
Am J Nephrol ; 51(11): 852-860, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33105130

RESUMEN

BACKGROUND: Predicting the mortality risk of patients un-dergoing hemodialysis (HD) is challenging. Cell-free DNA (cfDNA) is released into circulation from dying cells, and its elevation is predictive of unfavorable outcome. In a pilot study, we found post-HD cfDNA level to be a predictor of all-cause mortality. Thus, the aim of this study was to confirm the prognostic power of cfDNA in a larger prospective cohort study conducted at 2 medical centers. METHODS: CfDNA levels were measured by a rapid fluorometric assay on sera obtained before and after 1 HD session. One hundred fifty-three patients were followed up to 46 months for mortality during which time 47 patients died. We compared the predictive value of cfDNA to age, comorbidities, and standard blood tests. RESULTS: Examining standard blood tests, only post-HD cfDNA levels were elevated in the non-survivor group compared to survivors (959 vs. 803 ng/mL, p = 0.04). Pre- and post-HD cfDNA levels correlated with age and diabetes. Patients with elevated cfDNA (>850 ng/mL) showed lower survival than those with normal levels. A Cox proportional hazard regression model demonstrated a significant hazard ratio of 1.92 for post-HD cfDNA levels. Logistic regression models showed that post-HD cfDNA was a significant predictor of mortality at 1-3 years with odd ratios of 4.61, 4.36, and 6.22, respectively. CONCLUSIONS: Post-HD cfDNA level was superior to standard blood tests and could serve as a biomarker to assist in decision-making for HD-treated patients.


Asunto(s)
Ácidos Nucleicos Libres de Células/sangre , Diabetes Mellitus/epidemiología , Fallo Renal Crónico/mortalidad , Diálisis Renal/efectos adversos , Factores de Edad , Anciano , Anciano de 80 o más Años , Biomarcadores/sangre , Femenino , Estudios de Seguimiento , Humanos , Fallo Renal Crónico/sangre , Fallo Renal Crónico/terapia , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Pronóstico , Estudios Prospectivos , Medición de Riesgo/métodos , Factores de Riesgo
17.
Cell Immunol ; 355: 104135, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32703529

RESUMEN

Primarily known as an elastase inhibitor, human alpha1-antitrypsin also exerts anti-inflammatory and immunomodulatory effects, both in vitro and in vivo. While the anti-protease mechanism of alpha1-antitrypsin is attributed to a particular protein domain coined the reactive center loop, anti-inflammatory and immunomodulatory loci within the molecule remain to be identified. In the present study, directed evolution and back-to-consensus algorithms were applied to human alpha1-antitrypsin. Six unique functional candidate sites were identified on the surface of the molecule; in manipulating these sites by point mutations, a recombinant mutant form of alpha1-antitrypsin was produced, depicting a requirement for sites outside the reactive center loop as essential for protease inhibition, and displaying enhanced anti-inflammatory activities. Taken together, outcomes of the present study establish a potential use for directed evolution in advancing our understanding of site-specific protein functions, offering a platform for development of context- and disease-specific alpha1-antitrypsin-based therapeutics.


Asunto(s)
alfa 1-Antitripsina/genética , alfa 1-Antitripsina/metabolismo , Algoritmos , Animales , Antiinflamatorios , Evolución Molecular Dirigida/métodos , Femenino , Células HEK293 , Humanos , Masculino , Ratones , Ratones Endogámicos C57BL , Mutación/genética , Péptido Hidrolasas/metabolismo , Proteolisis , alfa 1-Antitripsina/ultraestructura
18.
Isr J Health Policy Res ; 9(1): 10, 2020 05 18.
Artículo en Inglés | MEDLINE | ID: mdl-32418539

RESUMEN

BACKGROUND: After decades of constant increase in HIV diagnoses among men who have sex with men (MSM), a gradual decrease has been reported in recent years. Timely detection of HIV leads to early treatment and behavioral changes which decrease further transmissions. This cross-sectional study aimed to assess demographic and behavioral characteristics of individuals who were tested for HIV in Jerusalem, Israel. METHODS: This study compared individuals who were tested at Hadassah AIDS Center (HAC) with those tested at the Jerusalem Open House (JOH) - an LGBTQ community center. Participants completed anonymous questionnaires regarding their demographic, HIV-testing history, and sexual behaviors. High-risk sexual behavior (HRSB) was defined as a diagnosis of sexually transmitted disease or condomless anal/vaginal sex during the last year. RESULTS: Among 863 participants, 104 (12.1%) were tested in HAC and 759 (87.9%) in JOH. Of those, 19 (18.3%) and 227 (29.9%) were HRSB, respectively. Two MSM were tested positive in JOH. JOH received more MSM, HRSB and individuals who were previously tested for HIV, while HAC received more migrants and health-care workers. HRSB-participants were more commonly younger, males, non-Jewish, with lower income, previously tested for HIV, reported more sexual partners, payed for sex or used drugs. CONCLUSIONS: MSM and HRSB-individuals were more likely to be tested in JOH, while migrants and health-care workers in HAC, possibly due to the geographic location, reputation and specific atmosphere. In order to encourage HIV-tests among HRSB and non-Jews, additional interventions should be employed, including outreach activities, extending opening hours and reducing testing costs should be employed.


Asunto(s)
Centros Comunitarios de Salud/estadística & datos numéricos , Prueba de VIH/métodos , Hospitales/estadística & datos numéricos , Conducta Sexual/psicología , Adulto , Centros Comunitarios de Salud/organización & administración , Estudios Transversales , Femenino , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Prueba de VIH/estadística & datos numéricos , Humanos , Israel/epidemiología , Masculino , Medición de Riesgo/métodos , Medición de Riesgo/estadística & datos numéricos , Factores de Riesgo , Encuestas y Cuestionarios
19.
J Matern Fetal Neonatal Med ; 33(8): 1400-1404, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-30173591

RESUMEN

Background: Imperforated hymen is a rare condition usually diagnosed at puberty due to amenorrhea accompanied by cyclic pelvic pain and sometimes other significant complications such as hematometra, endometriosis, and infertility. The accepted surgical treatment for imperforate hymen and some other hymenal malformation is hymenectomy. However, given low incidence rates, long-term obstetrical and gynecological outcomes in post-hymenectomy women remain poorly understood.Objective: To investigate long-term obstetrical and gynecological outcomes in nulliparous women who underwent a hymenectomy.Study design: Retrospective study comparing gynecological and perinatal outcomes of nulliparous women with and without hymenectomy, who delivered between the years 1988 and 2015 at the Soroka University Medical Center. Univariate analysis was performed as accepted with multivariate logistic regression model used to assess long-term effects of hymenectomy.Results: During the study period, 56 of 74,598 nulliparous women who delivered at the Soroka University Medical Center had previously undergone a hymenectomy. In a univariate analysis, cesarean deliveries were significantly more prevalent among women who had undergone a hymenectomy (30.4 versus 17.6% p = .01) as were infertility treatments (10.7 versus 4.4% p = .04) and dyspareunia (42.9 versus 0.2% p <.001). In a multivariate logistic regression model hymenectomy was found to be an independent risk factor for significant obstetrical and gynecological outcomes defined as one or more of the following: caesarean deliveries, cervical laceration, vaginal laceration, perineal laceration, preterm delivery, cervical incompetence, endometriosis, infertility, and dyspareunia (OR 2.5, 95% CI 1.26-4.93; p = .001).Conclusions: Hymenectomy is associated with significant long-term obstetrical and gynecological complications. Informing medical teams of these risks might promote early detection and minimize associated complications such as laceration-associated blood loss and preterm delivery.


Asunto(s)
Anomalías Congénitas/cirugía , Procedimientos Quirúrgicos Ginecológicos/efectos adversos , Himen/anomalías , Adulto , Estudios de Casos y Controles , Causalidad , Cesárea/estadística & datos numéricos , Anomalías Congénitas/epidemiología , Dispareunia/etiología , Femenino , Humanos , Himen/cirugía , Recién Nacido , Infertilidad/etiología , Laceraciones/etiología , Masculino , Complicaciones del Trabajo de Parto/etiología , Perineo/lesiones , Embarazo , Estudios Retrospectivos
20.
Can J Ophthalmol ; 54(5): 621-625, 2019 10.
Artículo en Inglés | MEDLINE | ID: mdl-31564355

RESUMEN

OBJECTIVE: To evaluate the effect of intraocular lens (IOL) implantation on the development of secondary glaucoma after cataract surgery in pediatric patients. DESIGN: Retrospective case series study. METHODS: This study reviewed the medical records of children under 16 years of age who had undergone cataract surgery from 1996 to 2016 for congenital or developmental cataract. In every child an IOL was implanted in the primary surgery. Data collected included demographic information, age at cataract diagnosis and at surgery, surgical procedure, and postoperative follow-up of refraction, cup-to-disc ratio (C/D), intraocular pressure (IOP), and associated systemic and ocular anomalies. Patients with risk factors for glaucoma were excluded from the study. RESULTS: Of the 255 children below age 16 years who underwent cataract extraction surgery with primary IOL implantation, 73 (124 eyes) met the inclusion criteria. Follow-up ranged from 4 to 18 years. Only 1 patient (0.8% of the 124 eyes) developed glaucoma in 1 of his 2 operated eyes; the surgeries were performed at 10 months, 1 week apart, and glaucoma was diagnosed 4 months later. One patient had suspected glaucoma in both eyes (incidence of 1.6%). Both these children were of Bedouin origin. CONCLUSION: IOL implantation, by itself, is not a risk factor for development of secondary glaucoma after cataract surgery in a population below 16 years of age.


Asunto(s)
Extracción de Catarata/efectos adversos , Catarata/complicaciones , Glaucoma/etiología , Presión Intraocular/fisiología , Implantación de Lentes Intraoculares/efectos adversos , Complicaciones Posoperatorias/etiología , Agudeza Visual , Adolescente , Catarata/congénito , Niño , Preescolar , Femenino , Glaucoma/diagnóstico , Glaucoma/fisiopatología , Humanos , Masculino , Complicaciones Posoperatorias/diagnóstico , Complicaciones Posoperatorias/fisiopatología , Estudios Retrospectivos , Factores de Riesgo
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...