Cory Ingram

Effect of brinzolamide and dorzolamide on aqueous humor flow in human eyes

PURPOSE To measure the relative efficacy of brinzolamide hydrochloride 1% ophthalmic suspension, a new carbonic anhydrase inhibitor, compared with the currently used dorzolamide hydrochloride 2% ophthalmic solution as suppressors of aqueous humor flow in human eyes, and to study the difference of effect during the day and at night. METHODS A randomized, double-masked, placebo-controlled study of 25 normal human subjects was carried out at Mayo Clinic. The daytime rate of aqueous humor flow was measured every 2 hours from 8 AM to 4 PM by means of fluorophotometry. Likewise, the night-time rate of aqueous humor flow was measured every 2 hours from 12 AM to 6 AM. Intraocular pressure was measured at 4 PM and 6 AM. RESULTS Brinzolamide reduced aqueous flow by 0.47+/-0.20 microl per min (mean+/-SD) during the day, whereas dorzolamide reduced flow by 0.34+/-0.20 microl per min. Brinzolamide reduced aqueous flow by 0.16+/-0.12 microl per min during the night, whereas dorzolamide reduced flow by 0.10+/-0.13 microl per min. Brinzolamide reduced afternoon intraocular pressure by 1.5+/-1.1 mm Hg, and dorzolamide reduced afternoon intraocular pressure by 1.1+/-1.0 mm Hg. Brinzolamide reduced the morning awakening intraocular pressure by 0.3+/-1.6 mm Hg, and dorzolamide reduced it by 0.8+/-1.0 mm Hg. CONCLUSIONS Our data support the idea that brinzolamide is at least as efficacious as dorzolamide as a suppressor of aqueous humor flow in normal human eyes and that there is probably not a clinically significant difference between the two drugs in this efficacy. Clinicians who prescribe brinzolamide should expect similar ocular hypotensive responses from brinzolamide and dorzolamide.

Comparison of the efficacy of betaxolol-brinzolamide and timolol-dorzolamide as suppressors of aqueous humor flow in human subjects

OBJECTIVE To compare the efficacy of combinations of betaxolol-brinzolamide and timolol-dorzolamide as suppressors of aqueous humor flow and ocular hypotensive agents. DESIGN Placebo-controlled, masked comparison of the two drug combinations. PARTICIPANTS Twenty-five normal human volunteers with the fellow eye serving as control. METHODS OR TESTING: Fluorophotometric measurement of aqueous humor flow and pneumatonometric measurement of intraocular pressure. MAIN OUTCOME MEASURES Aqueous humor flow and intraocular pressure. RESULTS The betaxolol-brinzolamide combination lowered aqueous flow 39% to 44%, and the timololdorzolamide combination lowered aqueous flow 51%. The betaxolol-brinzolamide combination lowered intraocular pressure 14% to 19%, and the timolol-dorzolamide combination lowered it 18% to 24%. CONCLUSIONS Both drug combinations were effective; the timolol-dorzolamide combination appeared to be the more effective of the two after short-term exposure (24 hours).

The feasibility of using technology to enhance the transition of palliative care for rural patients.

Palliative care services for patients with life-limiting conditions enhance their quality of life. Most palliative care services, however, are located in hospitals with limited transitional care for patients who live in distant locations. The long-term goal of this program of research is to use existing technology for virtual visits to provide transitional care for patients initially hospitalized in an urban setting by a nurse practitioner located closer to patients’ homes in distant, rural settings. The purpose of this proof-of-concept study was to determine the resources needed to use the system (efficiency) and the quality of the audio and visual components (effectiveness) to conduct virtual visits between a clinician at an academic center and community-dwelling adults living in rural locations. Guided by the Technology Acceptance Model, a mixed-methods field design was used. Because of the burden of testing technology with patients with life-limiting conditions, the sample included eight healthy adults. Participant satisfaction and perceptions of the ease of using the technology were also measured. Virtual visits were conducted using a 3G-enabled Apple iPad, cellular phone data service, and a Web-based video conference service. Participants and clinicians perceived the technology as easy to use. Observations revealed the importance of the visual cues provided by the technology to enhance communication, engagement, and satisfaction. Findings from this study will inform a subsequent study of technology-enhanced transitional care with palliative care patients.

I’m Still Me: Inspiration and Instruction from Individuals with Brain Cancer

Individuals with brain cancer face many challenges, including threats to cognition, personality, and sensory and motor functioning. These can alter one’s sense of identity and result in despair. Chaplain-led spiritual interviews were conducted with 19 patients with brain cancer as part of a larger spiritual legacy intervention called “Hear My Voice.” The majority was female (58%), married (68%) and had aggressive/advanced tumors (63%). Participants were 22–68 years of age and expressed the following religious affiliations: Protestant (42%), Catholic (21%), Muslim (5%), and none (32%). Framework analysis was applied to reduce and understand the interview data. Primary codes were relationships with: God or the spiritual, others, and self. Brain cancer was reported to deepen and enrich patients’ commitment to these relationships. Struggle and grief were also revealed. Results suggest the continued vitality, growth and generativity of these participants and provide insight for chaplains and others on the medical team.

A Paradigm Shift: Healing, Quality of Life, and a Professional Choice

In his most recent publication, Dr. Balfour Mount, the father of palliative care in North America, highlights the necessity of a paradigm shift in health care from the diagnostic and therapeutic models to a model of care that also embraces whole person care, a model in which attention to quality of life, healing, and attention to the lived experience of the whole person and their family are foundational. Dr. Mount challenges each of us to consider this paradigm shift as a personal and a professional choice. In this article, I take the next step in sketching a picture of what Dr. Mount is possibly challenging us all to choose.

Nurse-led Patient-centered Advance Care Planning in Primary Care: A Pilot Study

Advance care planning rates remain low, indicating a need to identify an approach that promotes acceptance of, and participation in, high-quality advance care planning by clinicians, patients, and families. A pilot study was conducted to evaluate the feasibility and acceptability of a nurse-led advance care planning intervention in primary care, comparing 4 advance care planning decision aids to help patients consider options; a 4-arm, prospective, comparative design was used with scripted discussions between 4 nurses and 40 patients in a large Midwestern clinic. The study procedures were determined to be feasible and acceptable. Most invited patients agreed to participate (40 of 66, 60%); 38 of 40 completed the intervention. Overall, patients and nurses were satisfied with the intervention. Changes in scores on the engagement survey were positive, indicating improvement across all groups. According to these preliminary data, 124 patients would be required in each group for a fully powered study. In addition, 34 of 40 patients (85%) completed an advance directive; all 40 patients identified a healthcare agent. The use of nurses to facilitate advance care planning with patients may be an opportunity to improve healthcare and patient outcomes and support full-scope nursing practice in primary care settings.

Providing Appropriate End-of-Life Care to Religious and Ethnic Minorities

There is overwhelming evidence that racial and ethnic minorities face multiple health care disparities. Recognizing and addressing cultural and religious/spiritual (RS) values is a critical aspect of providing goal-concordant care for patients facing a serious illness, especially at the end of life. Failure to address a patients cultural and RS needs can lead to diminished quality of care and worse health outcomes. Given the multitude of cultural and RS values, we believe that a framework of cultural and RS curiosity along with a willingness to engage patients in discussions about these elements of their care within an interdisciplinary team should be the goal of all providers who are discussing goals, preferences, and values with patients facing advanced terminal illness.

Describing transitional palliative nursing care using a standardized terminology

We used a standardized terminology to describe patient problems and the nursing care provided in a pilot study of a transitional palliative care intervention with patients and caregivers. Narrative phrases of a nurses documentation were mapped to the Omaha System (problem, intervention, and target). Over the course of the intervention, 109 notes (1473 phrases) were documented for 9 adults discharged home (mean age, 68 years; mean number of morbid conditions, 7.1; mean number of medications, 15.4). Thirty-one of the 42 Omaha System problems were identified; the average number of problems per patient was 13. Phrases were mapped to all 4 problem domains (environmental, 2.6%; health-related behaviors, 52.3%; physiological, 30.8%; and psychosocial, 14.3%). Surveillance phrases were the most frequent (72.4%); case management phrases were at 20.9%, and teaching, guidance, and counseling phrases were at 6.7%. The number of problems documented per patient correlated with the time between the first and last notes (&rgr; = 0.76; P = .02) but not with the number of notes per patient (&rgr; = 0.51; P = .16). These results are the first to describe nursing interventions in transitioning palliative care from hospital to home with a standardized terminology. Linking interventions to patient problems is critical for describing effective strategies in transitioning palliative care from hospital to home.

Guest family physician commentaries.

Finding new ways to incorporate national guidelines into daily practice using an electronic health record (EHR) may impact the care of primary care patients. The integration of screening tools for bipolar disorder into an EHR is a new development in the care of primary care patients. Gill et al[1][1