Operating room nurses' perceptions of the effects of physician-perpetrated abuse.

BACKGROUND: Operating room (OR) nurses experience abuse perpetrated by physicians; however, little research has been conducted to examine nurses' perceptions of the effects of such abuse. AIMS: The aim of this research was to understand participants' perceptions of physician-perpetrated abuse on their health and ability to provide patient care. MATERIALS/METHODS: In this qualitative descriptive study, ten operating room nurses working in Eastern Canada participated in open-ended, individual audiotaped interviews that were transcribed for analysis using Boyatzis' method for code development. RESULTS: Three categories of factors contributing to abuse were developed. The first, culture of the OR, included environment and hierarchy. The second, catalysts of abuse, included nurses' positions and experience as well as non-nurse factors such as resources and interpersonal relationships among physicians. The third category, perceived effects, included psychological, physical and social health consequences for nurses. Effects on patient care consisted of safety and potential challenges to access. DISCUSSION: Nursing practice implications included mentoring, support and accountability for action. Educational implications related to interdisciplinary education and increased education on communication, assertiveness, and awareness of abuse. Implications for research included studying perceptions of other health-care providers including physicians, studying recruitment and retention in relation to abuse, and studying other abuse in health care such as horizontal violence. CONCLUSION: We suggest a proactive approach for empowering OR nurses to address abuse and an increased focus on interdisciplinary roles.

Left main renal artery entrapment by diaphragmatic crura: spiral CT angiography.

Entrapment of renal artery by the diaphragmatic crus is a rare cause of renal artery stenosis. Spiral computed tomography angiography provides a definitive diagnosis and shows the precise relationship of the artery to the diaphragmatic crus. The authors present a case of hypertension developing in a young 20-year-old female due to entrapment of the left renal artery by the diaphragmatic crus. This condition should be considered in young hypertensive patients with renal artery stenosis without cardiovascular risk factors.

Cystic partially differentiated nephroblastoma.

Cystic partially differentiated nephroblastoma is a relatively rare tumour of the kidney usually affecting infants. Cystic Wilms' tumour and multilocular cystic nephroma should be distinguished from cystic partially differentiated nephroblastoma. Multilocular cystic nephroma is a benign tumour whereas cystic Wilms' tumour is at the malignant end of the range of classification of such tumours. Cystic partially differentiated nephroblastoma may undergo local recurrence but there is no report of metastasis.

Research with homeless people uncovers a model of health.

This grounded theory research study, explored health experiences of 11 homeless persons in shelters in three New Brunswick cities and the strategies that they used to attain, maintain, or regain health. Audiotaped interviews were conducted, transcribed verbatim, and analyzed. The model that emerged from analysis consists of three pathways to health. This model of health has two central components, person and health. Person is influenced directly by family values and beliefs, and directly and indirectly by societal values and beliefs. Health is the outcome and is reached through two mediating factors of lifestyle behaviors and sector services. The first pathway to health contains the mediating factor of lifestyle behaviors, the second contains the mediating factor of sector services, and the third contains both mediating factors. Pathway strategies of choosing, accessing, and appraising appropriateness of methods influence the active participation of the person that directs the action within the model. Implications of the study include that a fragmented system of help hinders access to services intended to promote health in this population.

Analysis of toxicity of Merkel cell carcinoma of the skin treated with synchronous carboplatin/etoposide and radiation: a Trans-Tasman Radiation Oncology Group study.

PURPOSE: The acute and late toxicities of synchronous carboplatin, etoposide, and radiation therapy were prospectively assessed in a group of patients with high-risk Merkel cell carcinoma of the skin. PATIENTS AND METHODS: Forty patients from six different centers throughout Australia were entered into a Phase II study under the auspices of the Trans-Tasman Radiation Oncology Group. The trial was activated in 1996 and continues to accrue. Patients are eligible if they have disease localized to the primary site and nodes and are required to have at least one of the following high-risk features: recurrence after initial therapy, involved nodes, primary size greater than 1 cm, gross residual disease after surgery, or occult primary with nodes. Radiation was delivered to the primary site and nodes to a dose of 50 Gy in 25 fractions over 5 weeks, and synchronous carboplatin (area under curve [AUC] 4.5) and etoposide (80 mg/M(2) i.v.) were given on days 1-3 during weeks 1, 4, 7, and 10. The median age of the group was 67 years (43-78). RESULTS: The median duration of follow-up was 22 months (2-45). There were no treatment-related deaths. Grade 3 or 4 skin toxicity occurred in 63% of patients (95% CI 48, 78). The most serious acute effect was on neutrophils with Grade 3 or 4 (neutrophils < 1 x 10(9)/L), occurring in 60% (95% CI 45, 75) of cases. Complications from neutropenia (fever and sepsis) occurred in 16 patients (40% of cases). The median time for neutropenic complications was 27 days (9-35), and 10/16 (62%) cases of neutropenic fever occurred after the second cycle of chemotherapy. The probability of Grade 3 or 4 late effects on platelets (<50 x 10(9)/L) and hemoglobin (<8 g/dl) was 10% (95% CI 1, 20) and 6% (95% CI 2, 15), respectively. Of the 40 patients, 35 were able to complete 4 cycles of chemotherapy. There were no factors predictive for neutropenic toxicity at a p value < 0.05. CONCLUSIONS: The protocol has acceptable toxicity, and the treatment has been deliverable in a multi-institutional trial setting. Neutropenia is likely to occur with synchronous carboplatin/etoposide and radiation in this population of patients. The risk of a febrile neutropenia was greatest at the time of the second cycle of chemotherapy, when there was moist desquamation of skin or mucosal membranes that provided a portal for infection. This should be considered in the design of subsequent protocols with chemoradiotherapy.

Partnerships identified within primary health care literature.

Primary health care promotes partnership in nursing. The purpose of this study was to delineate defining characteristics of partnerships within primary health care and to identify strategies to facilitate the development of these partnerships. Findings from this integrative review of the literature include the development of a partnership framework that emerged from the meanings inherent in the prefixes of words used to describe "multi", "inter", and "intra" partnerships. Also, the findings revealed characteristics of partner expectations, attributes of active and passive participation, and strategies to foster, and barriers to hinder, active participation. Using the developed partnership framework, implications for practice, education, and research have been discerned.

Learner concerns and teaching strategies for video-conferencing.

BACKGROUND: The purpose of this study was to understand the influences of interactive video-conferencing technology on learning experiences of RN students studying for baccalaureate degrees via interactive distance education. METHOD: Data collection in this phenomenological study used open-ended questionnaires, interviews, and focus groups. Preliminary thematic analysis of questionnaires shaped open-ended questions for interviews and focus groups with learners confirmed findings. RESULTS: Students identified themes of connecting with others, organization, negative influences, and personal factors as influential to their learning. They also identified useful teaching strategies to facilitate learning within this distance nursing education environment. CONCLUSION: University nursing programs using video-conferencing for distance education can foster learning by using teaching strategies that fit the technology, increase student interaction, and engage the students.

An integrative review illuminates curricular applications of primary health care.

The International Council of Nurses supported primary health care and advocated its acceptance by other intersectorial stakeholders. Nurse educators involved in curriculum development have respected this direction. To pursue the primary health care vision and influence the adoption of primary health care delivery systems, all principles of primary health care must be implemented simultaneously. An integrative review was conducted to ascertain the interpretation of primary health care held by nurse authors. A content analysis of the nursing literature revealed that 184 of the 254 articles retrieved (72%), applied primary health care in a manner that is consistent with the World Health Organization (WHO) definition. Through curricular applications of different interpretations of the primary health care principles, differences in the created learning environment are discussed. The Declaration of Alma Ata, evolving from beliefs and values shared by 134 member nations present at the Assembly, delineated that primary health care was the accepted infrastructure to guide policies that direct health care delivery systems regardless of the context in the country (WHO, 1978). Even with this overwhelming endorsement, very few countries have made changes in policies and infrastructure for implementing the underlying values and beliefs ascribed in primary health care. Changes that have occurred have not been organized around the vision or the principles of primary health care. This delay has had, and will continue to have, a huge impact on nursing education, practice, and research. Nurses are interested in helping people attain, maintain, or regain health; primary health care has the potential to achieve health for all citizens of the world.

Teaching becomes learning. Our lived experience.

Two teachers involved in the curriculum transformation process describe how they created and implemented a new learning environment with first-year nursing students in a basic baccalaureate nursing program. The authors have taught the introductory nursing course within this paradigm shift and describe the process of developing ends-in-view and relevant student experiences. They also reflect on the new meaning of the teaching-learning process within this paradigm.

Identification of polymorphism at the glutathione S-transferase, GSTM3 locus: evidence for linkage with GSTM1*A.

Allelism in the glutathione S-transferase, GSTM3 gene has been identified using PCR with specific primers to exon 6/exon 7. Sequencing showed the mutant GSTM3*B allele to have a three-base deletion in intron 6 with a frequency of 0.158. The mutation generates a recognition sequence, 5'-AAGATA-3', for the negative transcription factor YY1. GSTM3*B was significantly associated with GSTM1*A.

Fashioning facilitators: nursing education for primary healthcare.

Nurse educators need to develop strategies to assist their students to become facilitators who actively listen to clients' needs, who skillfully question clients, and who patiently help clients develop their own health management programs. A nurse educator describes her successful experience with one such strategy by which beginning baccalaureate nursing students learn to become facilitators through using the process of their education as a model.

Focus groups in distance nursing education.

This paper describes an educator's experience using focus groups with post-RN nursing students in a course offered by audio teleconferencing. The purposes of implementing focus groups included: to increase involvement of students located in the distance education settings, to implement principles of adult learning, to increase opportunities for drawing on the experience of the students, and to improve the quality of learning experience offered by distance education. An example is given to demonstrate how the process was used to integrate the focus group experience into the distance education classroom.

The effects of flexion on the geometry and actions of the lumbar erector spinae.

A modeling study was undertaken to determine the effects of flexion on the forces exerted by the lumbar back muscles. Twenty-nine fascicles of the lumbar multifidus and erector spinae were plotted onto tracings of radiographs of nine normal volunteers in the flexion position. Moment arms and force vectors of each fascicle were calculated. The model revealed that moment arms decreased slightly in length resulting in no more than an 18% decrease in maximum extensor moments exerted across the lumbar spine. Compression loads were not significantly different from those generated in the upright posture. However, there were major changes in shear forces, in particular a reversal from a net anterior to a net posterior shear force at the L5/S1 segment. Flexion causes substantial elongation of the back muscles, which must therefore reduce their maximum active tension. However, if increases in passive tension are considered it emerges that the compression forces and moments exerted by the back muscles in full flexion are not significantly different from those produced in the upright posture.

The axial torque of the lumbar back muscles: torsion strength of the back muscles.

The maximal, axial torque generated by the lumbar back muscles was determined by modelling the action of the 49 fascicles of longissimus thoracis, iliocostalis lumborum and the lumbar multifidus on radiographs of the lumbar spine of nine young male subjects in upright standing and in full lumbar flexion. No single fascicle exerted more than 2 Nm of axial torque in the upright posture, and the collective torque of all muscles acting a segment did not exceed 5 Nm. All torques were considerably less in full flexion. The lumbar back muscles exert very little torque on the lumbar spine, and contribute only about 5% of the total torque involved in trunk rotation. None of the lumbar back muscles can be considered a rotator. The oblique abdominal muscles are the principal rotators of the trunk. Preventative and rehabilitation programmes concerned with torsion injuries should focus on the abdominal muscles rather than the back muscles for stability in axial rotation.

A universal model of the lumbar back muscles in the upright position.

A model of the lumbar back muscles was constructed incorporating 49 fascicles of the lumbar erector spinae and multifidus. The attachment sites and sizes of fascicles were based on previous anatomic studies, and the fascicles were modeled on radiographs of nine normal volunteers in the upright position. Calculations revealed that the thoracic fibers of the lumbar erector spinae contribute 50% of the total extensor moment exerted on L4 and L5; multifidus contributes some 20%; and the remainder is exerted by the lumbar fibers of erector spinae. At upper lumbar levels, the thoracic fibers of the lumbar erector spinae contribute between 70% and 86% of the total extensor moment. In the upright posture, the lumbar back muscles exert a net posterior shear force on segments L1 to L4, but exert an anterior shear force on L5. Collectively, all the back muscles exert large compression forces on all segments. A force coefficient of 46 Ncm-2 was determined to apply for the back muscles. These results have a bearing on the appreciation of the effects on the back muscles of surgery and physiotherapy.

The attachments of the lumbar erector spinae.

The attachments and orientation of every fascicle of the lumbar erector spinae were determined in five cadavers and recorded radiographically. Little variation was found in the sites of muscle attachment, which enabled the construction of maps whereby these sites could be plotted on clinical radiographs or models of the lumbar spine. When all fascicles were plotted on 21 clinical radiographs using the maps previously developed, no significant difference in the orientation of fascicles was found compared with that observed in cadavers. This result vindicates the technique used to plot the location of individual fascicles of the lumbar back muscles.

Instantaneous axes of rotation of the typical cervical motion segments: I. an empirical study of technical errors.

The reliability of the conventional technique for determining the instantaneous axes of rotation of the cervical motion segments was evaluated by comparing the determinations made by two observers and the same observer on two separate occasions. Different observers found the same mean location for the instantaneous axis at each segment in a test population of 17 normal subjects, but for any given subject the interobserver and intraobserver differences were large, with a relative variation of up to 35%. Thus, while reliable for determining the mean location of the instantaneous axis of rotation in a population, the technique was not reliable for determining the axis in a given subject. Qualitative analysis suggested that the identification of the radiographic images of the vertebrae and their tracing is the greatest source of error for this technique.

1987 Volvo award in basic science. The morphology of the lumbar erector spinae.

The lumbar erector spinae consists of two muscles--iliocostalis lumborum and longissimus thoracis--each with distinct thoracic and lumbar parts. The thoracic parts consist of tiny muscle bellies with segmental origins from the thorax and long caudal tendons that form the erector spinae aponeurosis. The lumbar fibers arise from the lumbar accessory processes and the L1-4 transverse processes, and insert independently of the erector spinae aponeurosis into the ilium. The intrinsic lumbar fibers of the erector spinae are poorly described in the literature, and the existence of the iliocostalis lumborum pars lumborum has rarely been recognized even though it constitutes a substantial portion of the total muscle mass acting directly on the lumbar vertebrae.