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2.
Int J Nurs Stud ; 88: 53-59, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30196123

RESUMEN

BACKGROUND: Studies in multiple countries have found that the provision of aspiration abortion care by trained nurses, midwives, and other front-line health care workers is safe and acceptable to women. In the United States, most state abortion laws restrict the provision of abortion to physicians; nurse practitioners, nurse-midwives, and physician assistants, can legally perform medication abortion in only twelve states and aspiration abortion in five. Expansion of abortion care by these providers, consistent with their scopes of practice, could help alleviate the increasing difficulty of accessing abortion care in many states. OBJECTIVES: This study used a competency-based training model to teach advanced practice clinicians to perform vacuum aspiration for the abortion care. Previous research reporting on the training of providers other than physicians primarily focused on numbers of procedures performed, without assessment of skill competency or clinician confidence. DESIGN: In this prospective, observational cohort study, advanced practice clinician trainees were recruited from 23 clinical sites across six partner organizations. Trainees participated in a standardized, competency-based didactic and clinical training program in uterine aspiration for first-trimester abortion. SETTINGS: Trainee clinicians needed to be employed by one of the six partner organizations and have an intention to remain in clinical practice following training. PARTICIPANTS: California-licensed advanced practice clinicians were eligible to participate in the training if they had at least 12 months of clinical experience, including at least three months of medication abortion provision, and certification in Basic Life Support. METHODS: A standardized, competency-based training program consisting of both didactic and clinical training in uterine aspiration for first-trimester abortion was completed by 46 advanced practice clinician participants. Outcomes related to procedural safety and to the learning process were measured between August 2007 and December 2013, and compared to those of resident physician trainees. RESULTS: Essentially identical odds of complications occurring from advanced practice clinician-performed procedures were not significantly different than the odds of complications occurring from resident-performed procedures (OR: 0.99; CI: 0.46-2.02; p > 0.05) after controlling for patient sociodemographic and medical history. The number of training days to foundational competence ranged from six to 10, and the number of procedures to competence for those who completed training ranged from 40 to 56 (median = 42.5). CONCLUSIONS: A standardized, competency-based trainingprogram can prepare advanced practice clinicians to safely provide first-trimester aspiration abortions. Access to safe abortion care can be enhanced by increasing the number of providers from cadres of clinicians other than physicians.


Asunto(s)
Aborto Inducido/educación , Aborto Inducido/métodos , Competencia Clínica , Adulto , California , Femenino , Humanos , Masculino , Persona de Mediana Edad , Partería/educación , Enfermeras Obstetrices/educación , Enfermeras Practicantes/educación , Asistentes Médicos/educación , Médicos , Embarazo , Estudios Prospectivos
5.
J Am Chem Soc ; 140(9): 3277-3284, 2018 03 07.
Artículo en Inglés | MEDLINE | ID: mdl-29401390

RESUMEN

Natural gas hydrates occur widely on the ocean-bed and in permafrost regions, and have potential as an untapped energy resource. Their formation and growth, however, poses major problems for the energy sector due to their tendency to block oil and gas pipelines, whereas their melting is viewed as a potential contributor to climate change. Although recent advances have been made in understanding bulk methane hydrate formation, the effect of impurity particles, which are always present under conditions relevant to industry and the environment, remains an open question. Here we present results from neutron scattering experiments and molecular dynamics simulations that show that the formation of methane hydrate is insensitive to the addition of a wide range of impurity particles. Our analysis shows that this is due to the different chemical natures of methane and water, with methane generally excluded from the volume surrounding the nanoparticles. This has important consequences for our understanding of the mechanism of hydrate nucleation and the design of new inhibitor molecules.

6.
Obstet Gynecol ; 130(6): 1338-1346, 2017 12.
Artículo en Inglés | MEDLINE | ID: mdl-29112661

RESUMEN

OBJECTIVE: To assess postaspiration abortion contraceptive use and the role of insurance coverage for abortion in a state that covers abortion and contraception for low-income women. METHODS: This is a secondary analysis of a previously published prospective study to assess the safety of abortion provision. From 2007 through 2013, women seeking first-trimester aspiration abortion were recruited at 25 clinical facilities within four Planned Parenthood affiliates and Kaiser Permanente of Northern California. Patients' medical charts were reviewed to assess the contraceptive methods received on the day of the abortion. A 4-week follow-up survey assessed contraceptive use and contraceptive-related incidents. Primary outcomes included leaving with any method on the day of the abortion and use of any method at the 4-week assessment. Secondary outcomes included intrauterine device or implant use on the day of the procedure and at 4 weeks and switching to a less effective method at 4 weeks. RESULTS: A total of 19,673 women agreed to participate, and 13,904 (71%) completed the 4-week follow-up survey. Ninety-four percent (18,486/19,673) left their abortion visit with a contraceptive method: 21% (4,111/19,673) with an intrauterine device, implant, or permanent method. By the 4-week survey, 8% (1,135/13,904) switched from a high- or medium-efficacy method to a low-efficacy or no method; 0.4% (60/13,904) experienced a contraceptive incident. In adjusted regression analyses, women who paid for the abortion with Medicaid were significantly more likely to use any method (adjusted odds ratio [OR] 3.70, 95% CI 3.09-4.42) or an intrauterine device or implant (adjusted OR 2.14, 95% CI 1.92-2.38) on the day of the abortion than those who did not pay with insurance. Experiencing a contraceptive-related incident was associated with switching to a low-efficacy or no method by the 4-week survey (adjusted OR 3.98, 95% CI 2.20-7.22). CONCLUSION: Insurance coverage for abortion is associated with postabortion contraceptive provision and use, even in settings that cover abortions and contraception for low-income women.


Asunto(s)
Aborto Inducido , Conducta Anticonceptiva/estadística & datos numéricos , Anticoncepción , Cobertura del Seguro/estadística & datos numéricos , Aborto Inducido/economía , Aborto Inducido/estadística & datos numéricos , Adulto , Cuidados Posteriores/economía , Cuidados Posteriores/métodos , California , Anticoncepción/economía , Anticoncepción/métodos , Femenino , Humanos , Periodo Posoperatorio , Embarazo , Estudios Prospectivos
8.
Contraception ; 96(1): 1-13, 2017 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-28578150

RESUMEN

OBJECTIVES: To develop and validate standardized criteria for assessing abortion-related incidents (adverse events, morbidities, near misses) for first-trimester aspiration abortion procedures and to demonstrate the utility of a standardized framework [the Procedural Abortion Incident Reporting & Surveillance (PAIRS) Framework] for estimating serious abortion-related adverse events. STUDY DESIGN: As part of a California-based study of early aspiration abortion provision conducted between 2007 and 2013, we developed and validated a standardized framework for defining and monitoring first-trimester (≤14weeks) aspiration abortion morbidity and adverse events using multiple methods: a literature review, framework criteria testing with empirical data, repeated expert reviews and data-based revisions to the framework. RESULTS: The final framework distinguishes incidents resulting from procedural abortion care (adverse events) from morbidity related to pregnancy, the abortion process and other nonabortion related conditions. It further classifies incidents by diagnosis (confirmatory data, etiology, risk factors), management (treatment type and location), timing (immediate or delayed), seriousness (minor or major) and outcome. Empirical validation of the framework using data from 19,673 women receiving aspiration abortions revealed almost an equal proportion of total adverse events (n=205, 1.04%) and total abortion- or pregnancy-related morbidity (n=194, 0.99%). The majority of adverse events were due to retained products of conception (0.37%), failed attempted abortion (0.15%) and postabortion infection (0.17%). Serious or major adverse events were rare (n=11, 0.06%). CONCLUSIONS: Distinguishing morbidity diagnoses from adverse events using a standardized, empirically tested framework confirms the very low frequency of serious adverse events related to clinic-based abortion care. IMPLICATIONS: The PAIRS Framework provides a useful set of tools to systematically classify and monitor abortion-related incidents for first-trimester aspiration abortion procedures. Standardization will assist healthcare providers, researchers and policymakers to anticipate morbidity and prevent abortion adverse events, improve care metrics and enhance abortion quality.


Asunto(s)
Aborto Inducido/efectos adversos , Gestión de Riesgos/clasificación , Gestión de Riesgos/normas , Aborto Inducido/métodos , Infecciones Bacterianas/epidemiología , California , Femenino , Feto , Humanos , Morbilidad , Embarazo , Primer Trimestre del Embarazo , Reproducibilidad de los Resultados , Resultado del Tratamiento , Legrado por Aspiración/efectos adversos
10.
Womens Health Issues ; 27(4): 407-413, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28284587

RESUMEN

BACKGROUND: Each year, nearly one-half of all pregnancies in the United States are unintended. Risk factors of unintended pregnancy have been studied without attention to whether the pregnancy was the woman's first unintended pregnancy or whether she had had more than one. Little is known about the prevalence, incidence, and risk factors for multiple unintended pregnancies. The purpose of this paper is to present a systematic review of the extant literature on the risk factors for multiple unintended pregnancies in women in the United States, and whether these factors are specific to multiple unintended pregnancies. METHODS: PubMed, PsychInfo, CINAHL, Web of Science, and JSTOR databases were searched for empirical research studies performed after 1979, in the United States, with a primary outcome of multiple unintended pregnancies. Articles that did not establish the intendedness of the studied pregnancies were excluded. RESULTS: Seven studies were identified. For multiple unintended pregnancies, incidence rates ranged from 7.4 to 30.9 per 100 person-years and prevalence rates ranged from 17% to 31.6%. Greater age; identifying as Black or Hispanic; nonvoluntary first intercourse, particularly at a young age; sex trade involvement; and previous abortion were found to be associated with multiple unintended pregnancies. Use of intrauterine devices or combined oral contraceptives were found to decrease the risk of multiple unintended pregnancies. CONCLUSIONS: This review suggests a small number of modifiable factors that may be used to better predict and manage multiple unintended pregnancies.


Asunto(s)
Pobreza , Embarazo no Planeado , Embarazo/estadística & datos numéricos , Violación , Aborto Inducido , Adolescente , Adulto , Coito , Femenino , Humanos , Renta , Dispositivos Intrauterinos , Estado Civil , Factores de Riesgo , Estados Unidos , Adulto Joven
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