A Case of Brainstem Anesthesia after Retrobulbar Block for Globe Rupture Repair.

PURPOSE: To present a rare case of brainstem anesthesia from retrobulbar block and discuss evidence-based methods for reducing the incidence of this complication. CASE: A 72-year-old female, was given a retrobulbar block of 5 mL of bupivacaine 0.5% for postoperative pain management, after a globe rupture repair under general anesthesia. Prior to injection, the patient was breathing spontaneously via the anesthesia machine circuit and had not received any additional narcotics/muscle relaxants for 2.5 hr (with full recovery of neuromuscular blocking agent after anesthetic reversal). Over 7 min, however, there was a steady increase in ETCO2 and the patient became apneic, consistent with brainstem anesthesia. She remained intubated and was transported to the postanesthesia care unit for prolonged monitoring, with eventual extubation. Discussion. Brainstem anesthesia is an important complication to recognize as it can lead to apnea and death. The judicious use of anesthetic volume, shorter needle tips, and mixed formulations can help reduce the chance of brainstem anesthesia. Observation of the contralateral eye 5-10 minutes after injection for pupillary dilation, and prior to surgical draping, can help identify early CNS involvement.

Fragile X Syndrome: Scientific Background and Screening Technologies.

Fragile X is the most common inherited cause of mental retardation with a prevalence of 1 in 4000 for males and 1 in 5000 to 8000 for females. The American College of Medical Genetics and Genomics has recommended diagnostic testing for fragile X in symptomatic persons, women with ovarian dysfunction, and persons with tremor/ataxia syndrome. Although medical and scientific professionals do not currently recommend screening nonsymptomatic populations, improvements in current treatment approaches and ongoing clinical trials have generated growing interest in screening for fragile X. Here, we briefly review the relevant molecular basis of fragile X and fragile X testing and compare three different molecular technologies available for fragile X screening in both males and females. These technologic approaches include destabilizing the CGG-repeat region with betaine and using chimeric CGG-targeted PCR primers, using heat pulses to destabilize C-G bonds in the PCR extension step, and using melting curve analysis to differentiate expanded CGG repeats from normals. The first two-step method performed with high sensitivity and specificity. The second method provided agarose gel images that allow identification of males with expanded CGG repeats and females with expanded CGG-repeat bands which are sometimes faint. The third melting curve analysis method would require controls in each run to correct for shifting optimal cutoff values.

Critical care in patients undergoing lumbar spine fusion: a population-based study.

BACKGROUND: Data on the utilization of critical care services (CCSs) among patients who underwent spine fusion are rare. Given the increasing popularity of this procedure, information regarding demographics and risk factors for the use of these advanced services is needed in order to appropriately allocate resources, educate clinical staff, and identify targets for future research. METHODS: We analyzed hospital discharge data of patients who underwent lumbar spine fusion in approximately 400 US hospitals between 2006 and 2010. Patient, procedure, and health care system-related demographics for those requiring CCS were compared to those who did not. Outcomes such as mortality, complications, disposition status, and hospital charges were compared among groups and risk factors for the utilization of CCS identified. RESULTS: A total of 95 434 entries of patients who underwent posterior lumbar spine fusion surgery between 2006 and 2010 were identified. Approximately 10% of the patients required CCS. On average, patients requiring CCS were older and had a higher comorbidity burden, developed more complications, had longer hospital stays and higher costs, and were less likely to be discharged home compared to non-CCS patients. Risk factors with increased odds for requiring CCS included advanced age, increasing comorbidity burden, increasing surgical invasiveness, and presence of postoperative complications, especially pulmonary. CONCLUSIONS: Approximately, 10% of the patients undergoing lumbar spine surgery require CCS. Utilizing the present data, critical care physicians and administrators can identify patients at risk, educate clinical staff, identify targets for intervention, and allocate resources to meet the needs of this particular patient population.

2011 John M. Eisenberg Patient Safety and Quality Awards. The effect of a novel Housestaff Quality Council on quality and patient safety. Innovation in patient safety and quality at the local level.

BACKGROUND: In 2008 New York-Presbyterian Hospital (NYP)/Weill Cornell Medical Center, New York City, the largest not-for-profit, nonsectarian hospital in the United States, created and implemented a novel approach--the Housestaff Quality Council (HQC)--to engaging house-staff in quality and patient safety activities. METHODS: The HQC represented an innovative collaboration between the housestaff, the Department of Anesthesiology, the Division of Quality and Patient Safety, the Office of Graduate Medical Education, and senior leadership. As key managers of patient care, the housestaff sought to become involved in the quality and patient safety decision- and policy-making processes at the hospital. Its members were determined to decrease or minimize adverse events by facilitating multimodal communication, ensuring smart work flow, and measuring outcomes to determine best practices. The HQC, which also included frontline hospital staff or managers from areas such as nursing, pharmacy, and information technology, aligned its initiatives with those of the division of quality and patient safety and embarked on two projects--medication reconciliation and use of the electronic medical record. More than three years later, the resulting improvements have been sustained and three new projects--hand hygiene, central line-associated bloodstream infections, and patient handoffs--have been initiated. CONCLUSIONS: The HQC model is highly replicable at other teaching institutions as a complementary approach to their other quality and patient safety initiatives. However, the ability to sustain positive momentum is dependent on the ability of residents to invest time and effort in the face of a demanding residency training schedule and focus on specialty-specific clinical and research activities.

Ocular anatomy and retinal photoreceptors in a skink, the sleepy lizard (Tiliqua rugosa).

The Australian sleepy lizard (Tiliqua rugosa) is a large day-active skink which occupies stable overlapping home ranges and maintains long-term monogamous relationships. Its behavioral ecology has been extensively studied, making the sleepy lizard an ideal model for investigation of the lizard visual system and its specializations, for which relatively little is known. We examine the morphology, density, and distribution of retinal photoreceptors and describe the anatomy of the sleepy lizard eye. The sleepy lizard retina is composed solely of photoreceptors containing oil droplets, a characteristic of cones. Two groups could be distinguished; single cones and double cones, consistent with morphological descriptions of photoreceptors in other diurnal lizards. Although all photoreceptors were cone-like in morphology, a subset of photoreceptors displayed immunoreactivity to rhodopsin-the visual pigment of rods. This finding suggests that while the morphological properties of rod photoreceptors have been lost, photopigment protein composition has been conserved during evolutionary history.

Perspective: call to action: it is time for academic institutions to appoint a resident quality and patient safety officer.

In meeting the Accreditation Council for Graduate Medical Education (ACGME) core competency requirements, teaching hospitals often find it challenging to ensure effective involvement of housestaff in the area of quality and patient safety (QPS). Because housestaff are the frontline providers of care to patients, and medical errors occasionally occur based on their actions, it is essential for health care organizations to engage them in QPS processes.In early 2008 a Housestaff Quality Council (HQC) was established at New York-Presbyterian Hospital, Weill Cornell Medical Center, to improve QPS by engaging housestaff in policy and decision-making processes and to promote greater housestaff participation in QPS initiatives. It was quickly realized that the success of the HQC was highly contingent on alignment with the institution's overall QPS agenda. To this end, the position of resident QPS officer was created to strengthen the relationship between the hospital's strategic goals and the HQC. The authors describe the success of the resident QPS officers at their institution and observe that by appointing and supporting resident QPS officers, hospitals will be better able to meet their quality and safety goals, residency programs will be able to fulfill their required ACGME core competencies, and the overall quality and safety of patient care can be improved. Simultaneously, the creation of this position will help to create a new cadre of physician leaders needed to further the goals of QPS in health care.

Ten years after the IOM report: Engaging residents in quality and patient safety by creating a House Staff Quality Council.

Ten years after the 1999 Institute of Medicine report, it is clear that despite significant progress, much remains to be done to improve quality and patient safety (QPS). Recognizing the critical role of postgraduate trainees, an innovative approach was developed at New York-Presbyterian Hospital, Weill Cornell Medical Center to engage residents in QPS by creating a Housestaff Quality Council (HQC). HQC leaders and representatives from each clinical department communicate and partner regularly with hospital administration and other key departments to address interdisciplinary quality improvement (QI). In support of the mission to improve patient care and safety, QI initiatives included attaining greater than 90% compliance with medication reconciliation and reduction in the use of paper laboratory orders by more than 70%. A patient safety awareness campaign is expected to evolve into a transparent environment where house staff can openly discuss patient safety issues to improve the quality of care.

An anesthesiology department leads culture change at a hospital system level to improve quality and patient safety.

At New York-Presbyterian Hospital, Weill Cornell Medical Center, an innovative approach to involving housestaff in quality and patient safety, policy and procedure creation, and culture change was led by the Department of Anesthesiology of the Weill Medical College of Cornell University. A Housestaff Quality Council was started in 2008 that has partnered with hospital leadership and clinical departments to engage the housestaff in quality and patient safety initiatives, resulting in measurable improvements in several patient care projects and enhanced working relationships among various clinical constituencies. Ultimately this attempt to change culture has found great success in fostering a relationship between the housestaff and the hospital in ways that have and will continue to improve patient care.

The role of housestaff in implementing medication reconciliation on admission at an academic medical center.

Since 2006, the Joint Commission has required all hospitals to have a process in place for medication reconciliation (MR). Although it has been shown that MR decreases medical errors, achieving compliance has proven difficult for many health care institutions. This article describes a housestaff-championed intervention of a "hard stop" for on-admission MR orders that led to a statistically significant increase in compliance that was sustained at 6 months after intervention. Academic medical centers, which comprise large numbers of housestaff, can improve compliance with on-admission MR by engaging housestaff in the development of solutions and in communication to their peers, leading to sustained results.

Interactions between climate, host refuge use, and tick population dynamics.

The relationship between Australian sleepy lizard (Tiliqua rugosa) microhabitat use and tick (Amblyomma limbatum) population dynamics was investigated. Over 3 years (2002-2004) between 23 and 50 lizards were radio-tracked up to four times a week to record microhabitat use and each fortnight to determine tick loads. Daily maximum temperature was highly predictive of lizard microhabitat use. In hotter fortnights lizards used larger bushes and burrows for refuge. Peak background tick infestation levels and pulses of attachment coincided with higher ambient temperature. Male ticks attached throughout the year independent of season. Engorged females detached late in spring, summer and autumn, when climate regularly restricted lizards to a few thermally conservative refuges. Peak nymph and larval attachment occurred over summer and into autumn. Climate-dependent timing and type of host refuge use may influence tick population density. In more temperate summers lizards may avoid refuges with potentially high parasite loads.