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Biomedical subjects

T King

Publications and source records attributed to T King.

126 records · Page 7Linked to original sources

Epidural anesthesia in labor. Benefits versus risks.

Epidural anesthesia is used for relief of labor pain by 29% of women having hospital deliveries in the United States, a number that has doubled within the past 10 years. Although epidurals provide objective pain relief that is exponentially better than the other pain relief methods, there are many purported complications and side effects. This article reviews how epidurals work, summarizes the literature regarding complications, and presents some of the ethical dilemmas inherent in the use of this technology for labor.

Anesthesia, Epidural↗

Interdisciplinary teaching. A survey of CNM participation in medical education in the United States.

Nurse-midwives have participated informally in the education of medical students and residents for many years, yet little is known about their formal involvement in medical education. A two-part survey was conducted to investigate the extent and characteristics of nurse-midwifery participation in medical education in the United States. The initial questionnaire was sent to every department of obstetrics and gynecology chair listed in the directory of the Association of Professors of Gynecology and Obstetrics and addressed the use of certified nurse-midwives (CNMs) as educators within their respective departments. A subsequent questionnaire was distributed to CNMs participating in medical education and addressed their demographic characteristics, roles within the medical school faculty, and attitudes regarding work in medical education. More than one half (54%) of U.S. allopathic medical schools are formally using CNMs as educators, with the strongest involvement reported in the West and Northeast. Nearly as many CNM respondents are participating in the education of family medicine residents (57%) as in obstetrics and gynecology (59%). Most CNMs (93%) involved in medical education are also involved in nurse-midwifery education. Eighty percent of CNM respondents perceived congruency between educating student physicians and their philosophy of nurse-midwifery practice.

Adult↗

Collaborative practice. A resource guide for midwives.

There is a paucity of literature specifically addressing the efficacy of collaborative practices composed of midwives and physicians. However, the literature documenting the effectiveness of interdisciplinary teams of various health care providers combined with the literature on the effectiveness of midwifery practice presents a compelling argument for midwife-physician collaborative practice. This resource list provides access to literature on interdisciplinary collaboration most relevant to midwives engaged in creating, reestablishing, and researching collaborative practice models.

Female↗

Integrated mid-wife physician practice. Obstetric darwinism?

The health care delivery system is experiencing rapid changes in structure and form. Economically driven reform efforts emphasize cost-containment that encompasses quality and patient satisfaction. Collaborative or joint nurse-midwife/physician practices have been proposed as one solution ideally suited to meet the contingencies of the new era of health care. Collaborative efforts can range from clinical collaboration to financial and structural integration between midwives and physician partners. The structure of different interdisciplinary models is presented. Future issues faced by one such model, the joint or integrated midwife/physician practice, are discussed.

Female↗

Fetal heart rate monitoring: interpretation and collaborative management.

Effective intrapartum fetal heart rate (FHR) monitoring requires ongoing collaboration among health care providers. Nurses, midwives, and physicians must have a shared understanding of 1) how FHR tracings are interpreted, 2) which FHR patterns are associated with actual or impending fetal acidemia, 3) when and within what time frame the physician or the midwife should be notified of variant FHR patterns, 4) how quickly physicians and midwives should respond when notified of variant patterns, and 5) the indications for and optimal timing of interventions such as operative delivery. This article reviews the literature on FHR monitoring and includes a discussion of the advantages and limitations of different monitoring modalities. An overview of those FHR patterns are associated with presumed fetal acidemia is presented, as well as sample multidisciplinary FHR monitoring guidelines and an exercise in intrapartum FHR pattern evaluation that can be used to initiate development of local FHR monitoring patterns.

Acidosis↗

ACNM essential documents: a midwife's suit of armor.

As the oldest professional midwifery organization in the United States, The American College of Nurse Midwives (ACNM) represents the profession of midwifery in the United States and sets standards for education, certification, and practice. The ACNM has generated and revised several critical documents that provide guidance for the scope of midwifery practice, individually and collectively. This article reviews essential ACNM documents and their role in supporting professional midwifery.

Credentialing↗

The experiences of midlife daughters who are caregivers for their mothers.

A study was conducted of the experiences of midlife daughters who are caregivers for their aging mothers. I recruited participants through a daughters-of-aging-parents program at the Women's Resource Centre in Vancouver, British Columbia. The phenomenological research method was used to elicit midlife daughters' descriptions of their caregiving experiences and the emotions generated by these experiences. The findings elucidated a development framework--the Continuum of Care--along with daughters vacillated during their caregiving experiences. Health care practitioners can use the Continuum of Care framework to identify triggers to assist daughters to develop healthy caregiving relationships with their mothers.

Adaptation, Psychological↗

Scanning and reflecting: major components of nursing leadership.

The effectiveness of nurse leaders rests partly on their abilities to scan for cues about themselves, other people, and situations; to reflectively determine the significance of these cues for leadership; and to shape their leadership in response to relevant cues. In this paper I describe the scanning and reflecting activities of six Canadian nurse managers. Scanning and reflecting are two of the major themes elucidated during a 3-year phenomenological study of their leadership. I also suggest how their scanning and reflecting might benefit care delivery, the nursing profession, and health care organizations.

Adult↗

Evaluation of the Syva ETS-PLUS Ethyl Alcohol Assay with application to the analysis of antemortem whole blood, routine postmortem specimens, and synovial fluid.

A critical evaluation of the ETS-PLUS Ethyl Alcohol Assay indicates that it is simple to perform, sensitive enough to reliably detect ethanol above a concentration of 0.010 g/dL, and dynamic enough to reliably quantitate ethanol concentrations between 0.010 and 0.400 g/dL, correlating well with headspace gas chromatography. The technique is suitable for the analysis of relatively fresh (less than 1 month old) serum, plasma, urine, bile, vitreous humor, and gastric samples. With the aid of dilution, it is adaptable to the analysis of whole blood, relatively old specimens (more than 3 months old), viscous and highly pigmented plasma, bile, and the occasional extremely viscous vitreous humor specimens. Our evaluation further indicates that samples can remain in the system's covered sample wheel for up to 2 h without significant (less than 10%) diminution in ethanol concentration. This technique was further utilized to evaluate the suitability of synovial fluid as an alternative for vitreous humor.

Ethanol↗

A longitudinal study of the association between tooth loss and age-related hearing loss.

The purpose of this study was to investigate cross-sectional and longitudinal associations between hearing acuity and tooth loss in 1156 US veterans taking part in the Veterans Affairs' Normative Aging (NAS) and Dental Longitudinal (DLS) Studies in the Boston, MA, area. The mean age was 48 years (SD = 8.9), 5.3% were edentulous, and 15.4% had < 17 teeth at baseline. Hearing acuity was determined by puretone, air- and bone-conduction audiometry, and speech discrimination tests at triennial examinations over a 20-year follow-up period. Hearing decline was defined as a change from baseline in the average puretone air-conduction thresholds of > or = 20 dB at 0.25, 0.5, 1, 2, 3, 4, 6, and 8 kHz. The explanatory variables of interest were change since baseline in dentate status (cut points at < 1, < 17, and < 20 teeth), and in the number of teeth lost (linear). Linear and logistic regression models--which controlled for baseline audiological status, age, air-bone gap, and otoscopic examination at current visit--showed that subjects who went from having > or = 17 to < 17 teeth had 1.64 times (95% CI, 1.24-2.17) as high odds of having hearing decline as those with no change in their dentate status. For every tooth lost since baseline, there was a 1.04 times as high odds (95% CI, 1.02-1.06) for hearing decline, when additional baseline and time-varying covariates were taken into account in the model.

Adult↗

Paradigms of Canadian nurse managers: lenses for viewing leadership and management.

To an extent unprecedented in history, healthcare is a complex and human enterprise. Generating the complexity are stakeholders with more diverse perspectives, needs, and agendas, and greater knowledge and vested interest than ever before. Given their pivotal position between the direct-care environment and external stakeholders, nurse managers can no longer rely on the hierarchy, authority, and linear thinking afforded by traditional management; in order to accomplish they must lead people by working through them. Ironically, when needed most, there is a lack of consensus in the literature about what leadership is. In this paper I describe the paradigms for leadership and management held by six Canadian nurse managers who participated in a phenomenological study of leadership. Thinking leaders worked through people to enhance their growth, potential, and accomplishment, participants did so by creating and sustaining inclusive environments, influencing people, and acting in a manner that reflected and supported integrity. Participants thought managers did not focus on people; instead, they carried out routine, procedure-driven tasks to run departmental business. Included in this paper are suggestions about how participants' paradigms might benefit the nursing profession, consumers of care, and healthcare organizations. Although organizations are markedly interested in the development of managers and leaders as decision makers behind accomplishment (Beyers, 1991), managed or pushed organizations will fall behind those that are "led and stretched" (Batten, 1989, p. 3). According to Bennis and Nanus (1985), whereas managers are concerned about efficiency as it relates to set routines, leaders try to be effective by doing what is right. These authors also posited that although management alone may have sufficed in our more predictable past, today's intricate world is not well served by management's linear thinking; its lack of attention to people's diversity; and its dangerous assumptions that problems, goals, alternatives, and consequences are always clear, known, and/or certain, and that necessary information is always on hand and reliable. Perhaps to an extent unprecedented in history healthcare is a human enterprise. Within its dynamic context myriad stakeholders with increasingly diverse perspectives, needs, and agendas, and growing levels of knowledge and vested interest, are involved in unpredictable and uniquely complex situations with uncertain outcomes. These factors orchestrate the intangible mist that healthcare organizations must contend with today. These factors also render traditional how-to manuals obsolete and suggest, instead, that contemporary decision makers in healthcare must be leaders who are comfortable with ambiguity, deftly sensitive and responsive to complexity, and continually looking for ways to work with people to enhance organizational success. Ironically, when we need it most, leadership retains its enigmatic and complex nature (Beyers, 1991); perhaps that is why management is the prevalent practice in organizations (Bennis & Nanus, 1985). Results of one project identified insufficient nursing leadership as a major cause of dissatisfaction among registered nurses (Registered Nurses Association of British Columbia (RNABC), 1989). Hence, our need to grapple with the elusive nature of leadership. In this paper I share the paradigms for leadership and management held by six Canadian nurse managers, and suggest how their paradigms might benefit the nursing profession, and healthcare consumers and organizations.

Canada↗

The impact of depression on smoking cessation in women.

INTRODUCTION: Cigarette smoking poses unique, but preventable health risks to women. Identification of barriers to womens' quitting is essential to tailor interventions accordingly. Major depression, whether historical, current, or subsyndromal, may present unique challenges to women quitting smoking. Although several reviews discuss women and smoking in general, this review focuses exclusively on the role of depression in womens' smoking. OBJECTIVES: The goals of this review are to (1) discuss and synthesize the current findings on the association between smoking and depression in women in general, and in particular subgroups of women (underserved, premenstrual, postpartum, menopausal), (2) discuss physician-assisted, pharmacologic, behavioral interventions for mood management, and (3) propose future avenues for intervention, research, and policy. IMPACT OF DEPRESSION: Major depression may influence smoking cessation in women because (1) depression is twice as common among women as men, (2) history of depression and negative affect have been associated with smoking treatment failure, (3) quitting smoking is especially difficult during certain phases of the reproductive cycle, phases that have also been associated with greater levels of dysphoria, and (4) subgroups of women who have a high risk of continuing to smoke (underserved, less educated, low SES) also have a high risk of developing depression. CONCLUSIONS: Since many women who are depressed (or who have developed depression during prior quit attempts) may be less likely to seek formal cessation treatment, practitioners have a unique opportunity to persuade their patients to quit. We discuss patient-treatment matching.

Behavior Therapy↗

Detection of mutated c-Ki-ras in the bile of patients with pancreatic cancer.

BACKGROUND: Because treatment of advanced pancreatic cancer is often unsuccessful, early detection is important. Codon 12 c-Ki-ras mutations have been found in 80-90% of pancreatic cancer cases and are a potential early marker for pancreatic cancer, but obtaining tissue or fluid for analysis can be difficult. We therefore evaluated whether mutant c-Ki-ras could be detected in bile samples obtained from pancreatic cancer patients. METHODS: DNA was isolated from bile specimens obtained from 20 patients with pancreatic cancer. The mutant-enriched PCR technique (ME-PCR) was used to amplify and detect point mutations at codon 12 of the c-Ki-ras oncogene. RESULTS: In 17 cases sufficient DNA for amplification was obtained; 14 had mutant c-Ki-ras alleles. Cytological evaluation of the bile was performed in 11 of these cases, but was positive in only two cases; both were positive for codon 12 c-Ki-ras mutations. Of the 9 cytologically negative biliary specimens, ME-PCR was positive in six. CONCLUSIONS: Codon 12 c-Ki-ras mutations can be successfully identified in PCR-amplified DNA from bile samples obtained from patients with advanced pancreatic cancer. This technique may supplement cytologic techniques for diagnosing pancreatic cancer and may be capable of identifying individuals at risk for this disease.

Bile↗