Texas Health Arlington Memorial

BACKGROUND: Nurses have an essential role in implementing evidence-based practices (EBP) that contribute to high-quality outcomes. It remains unknown how healthcare facilities can increase nurse engagement in EBP. PURPOSE: To determine whether individual or organizational qualities could be identified that were related to registered nurses' (RNs') readiness for EBP as measured by their reported EBP barriers, ability, desire, and frequency of behaviors. METHODS: A descriptive cross-sectional survey was used in which a convenience sample of 2,441 nurses within one United States healthcare system completed a modified version of the Information Literacy for Evidence-Based Nursing questionnaire. Descriptive statistics, t tests, one-way ANOVA, and regression modeling were used to analyze the data. RESULTS: RNs employed by facilities designated by the American Nurses Credentialing Center (ANCC) as Magnet® or Pathway to Excellence® reported significantly fewer barriers to EBP than those RNs employed by non designated facilities. RNs in Magnet organizations had higher desire for EBP than Pathway to Excellence or non designated facilities. RNs educated at the baccalaureate level or higher reported significantly fewer barriers to EBP than nurses with less education; they also had higher EBP ability, desire, and frequency of behaviors. A predictive model found higher EBP readiness scores among RNs who participated in research, had specialty certifications, and engaged in a clinical career development program. LINKING EVIDENCE TO ACTION: Education, research, and certification standards promoted by the Magnet program may provide a nursing workforce that is better prepared for EBP. Organizations should continue structural supports that increase professional development and research opportunities so nurses are empowered to practice at their full capacity.

This study compared the Biomic automated well reader results to the MicroScan WalkAway results for reading MicroScan antimicrobial susceptibility and identification panels at four different sites. Routine fresh clinical isolates and quality control (QC) organisms were tested at each study site. A total of 46,176 MicroScan panel drug-organism combinations were read. The Biomic category agreement for 3,117 Gram-negative bacteria was 98.4%, with 1.4% minor and 0.2% major discrepancies. The Biomic category agreement for 5,233 Gram-positive bacteria was 98.7%, with 0.9% minor, 0.3% major, and 0.1% very major errors. Essential agreement, defined as Biomic results that were within ±1 2-fold dilution of the MicroScan results, was 99.3% for Gram-negative bacteria and 98.3% for Gram-positive bacteria. Biomic reading of MicroScan identification panels provided an overall agreement (first- and second-choice organism match) of 99.5% with 846 Gram-negative isolates and 99.5% with 430 Gram-positive isolates. These results suggest that the Biomic automated reader can provide accurate reading of MicroScan panels and has the capability of a visual panel read for manual adjustment of results.

Background and objectives: Modern-day epidemiologic data on the risk and shifting landscape of occurrence of cardiovascular events in cannabis users remain inadequate and rather conflicting, especially amongst the young adult population. Furthermore, the problem of polysubstance use among youth is challenging for healthcare professionals and policy-makers. Previous studies report higher risk of concomitant use of tobacco, alcohol, cocaine, and amphetamine in young cannabis users. However, most of these studies did not eliminate the confounding effects of concomitant other substance abuse while assessing the incidence and outcome of cardiovascular events in cannabis users. Materials and methods: Using weighted discharge records from the National Inpatient Sample (NIS) from 2007–2014, we assessed the national trends in hospitalizations for major cardiovascular events including acute myocardial infarction (AMI), arrhythmia, stroke, and venous thromboembolic events (VTE) among young cannabis users (18–39 years), excluding cases with concomitant substance abuse with alcohol, tobacco, cocaine, and amphetamine. Results: Of 52.3 million hospitalizations without other substance abuse, 0.7 million (1.3%) young adults were current/former cannabis users. Among young adults without concomitant substance abuse, the frequency of admissions for AMI (0.23% vs. 0.14%), arrhythmia (4.02% vs. 2.84%), and stroke (0.33% vs. 0.26%) was higher in cannabis users as compared to non-users (p < 0.001). However, the frequency of admissions for VTE (0.53% vs. 0.84%) was lower among cannabis users as compared non-users. Between 2007 and 2014, we observed 50%, 79%, 300%, and 75% relative increases in hospitalizations for AMI, arrhythmias, stroke, and VTE, respectively, among young cannabis users as compared to non-users, showing relatively inferior or no ascent in the rates (ptrend < 0.001). Conclusions: The rising trends in hospitalizations for acute cardiovascular events among young cannabis users without concomitant other substance abuse call for future prospective well-designed studies to assess cannabis-related short-and long-term cardiovascular implications while simultaneously developing focused interventions towards raising awareness among the young population regarding the potential deleterious effects of cannabis use.

Osteoarthritis affects millions of people worldwide, is associated with joint stiffness and pain, and often causes significant disability and loss of productivity. Osteoarthritis is believed to occur as a result of ordinary "wear and tear" on joints during the course of normal activities of daily living. Posttraumatic osteoarthritis is a particular subset of osteoarthritis that occurs after a joint injury. Developing clinically relevant animal models will allow investigators to delineate the causes of posttraumatic osteoarthritis and develop means to slow or prevent its development after joint injury. Chondroprotectant compounds, which attack the degenerative pathways at a variety of steps, are being developed in an effort to prevent posttraumatic osteoarthritis and offer great promise. Often times, cartilage degradation after joint injury occurs despite our best efforts. When this happens, there are several evolving techniques that offer at least short-term relief from the effects of posttraumatic osteoarthritis. Occasionally, these traumatic lesions are so large that dramatic steps must be taken in an attempt to restore articular congruity and joint stability. Fresh osteochondral allografts have been used in these settings and offer the possibility of joint preservation. For patients presenting with neglected displaced intra-articular fractures that have healed, intra-articular osteotomy techniques are being developed in an effort to restore joint congruity and function. This article reviews the results of a newly developed animal model of posttraumatic osteoarthritis, several promising chondroprotectant compounds, and also cartilage techniques that are used when degenerative cartilage lesions develop after joint injury.

Tibial plateau fractures or knee fracture-dislocations often result from trauma or sporting injuries. Given the subcutaneous position of the knee and upper tibia, without much intervening soft tissue, any such injury can be associated with significant soft tissue damage. Thus, consideration of the degree of soft tissue injury must be part of the treatment plan. Specific management decisions regarding blisters, open wounds, and compartment syndrome are discussed, as well as the timing of surgery, role of provisional external fixation, and placement of incisions for definitive internal fixation.

PURPOSE: To determine whether mothers of newborns understand basic facts about newborn screening (NBS), and how they feel about state retention of dried bloodspots (DBS) for research use. DESIGN: This study was a cross-sectional survey administered to 548 mothers of newborns in postpartum units in five different hospitals in north Texas after Institutional Review Board approval. Each participating site delivered and collected surveys using systems that were convenient for them. The survey instrument used in this study is the Maternal Attitudes and Knowledge about Newborn Screening Survey. The survey was developed by the investigators. Summary statistics were provided for each participating site and surveys were combined for final data analysis. Multiple regression analysis was used to quantify associations between responses and demographic variables. RESULTS: Overall, knowledge about details of NBS and DBS retention was inadequate. The most frequent source of information about NBS was the postpartum nurse. Mothers tended to believe that using newborn bloodspots for research was a good thing, but Medicaid recipients and minorities were more reluctant than others to share dried bloodspots for research. CLINICAL IMPLICATIONS: Mothers are not fully informed about NBS or the use of infant bloodspots for research. Bloodspot storage in Texas could shrink under new opt-in policies, constraining a resource needed for genetic and other research. Further research to design and test educational interventions that are sensitive to the concerns of parents about DBS storage and that can be efficiently implemented antenatally is needed.

Rhabdomyolysis is caused by necrosis of muscles and leakage of intracellular contents into blood circulation. It is most commonly caused by trauma, crush injuries, drugs, toxins, immobilization, compartment syndrome, prolonged surgical procedures, and less likely by infections. Infection-related rhabdomyolysis is rare, but not uncommon, and is seen in both viral and bacterial infections. Extrapulmonary manifestations of coronavirus disease 2019 (COVID-19) include thrombotic like pulmonary emboli, acute cerebrovascular accident, myocardial infarction, cardiac arrhythmias, liver injury, gangrene, diarrhea, acute renal failure, and so on. We here describe a case of COVID-19-induced rhabdomyolysis in a 19-year-old Hispanic male presenting with muscle aches, fatigue, fevers, and no pulmonary symptoms.

BACKGROUND: VISITAG SURPOINT (VS)-guided ablation of paroxysmal atrial fibrillation has demonstrated good short- and long-term success rates with low rates of complications in recent, predominantly European, studies. However, there is a lack of multicenter data from the United States. OBJECTIVES: This U.S. study evaluated the safety and effectiveness of VS ablation using a contact force-sensing catheter for the treatment of drug-refractory symptomatic paroxysmal atrial fibrillation. METHODS: The prospective, nonrandomized VS postapproval study was conducted at 32 U.S. sites. Ablation consisted of pulmonary vein isolation with recommended VS index targets (anterior, roof, or ridge: 550; posterior or inferior: 380). Additional non-pulmonary vein triggers were ablated at the investigators' discretion. Subjects were followed for 12 months, including a 3-month blanking period. The primary safety endpoint was the primary adverse event rate up to 7 days postablation. The primary effectiveness endpoint was 12-month freedom from atrial tachyarrhythmia recurrence and an additional set of failure modes based on stringent monitoring (weekly transtelephonic monitoring [TTM] [day 91 through month 5], monthly TTM [months 6 to 12], and any symptomatic cardiac episode using TTM, plus electrocardiogram [at discharge, 1 month, 3 months, 6 months, and 12 months] with 24-hour Holter monitoring [12 months]). RESULTS: Of 283 patients enrolled, 261 had the catheter inserted and underwent ablation (safety cohort); 246 met all eligibility criteria (effectiveness cohort). Mean fluoroscopy time was 2.2 minutes. Mean amount of catheter-delivered fluid was 671 mL; only 18.0% of patients utilized a Foley catheter. Primary safety and effectiveness endpoints were met. The raw primary adverse event rate was 4.3% (14 events, n = 11). At 12 months, the Kaplan-Meier estimate of freedom from primary effectiveness failure was 76.4%; estimates of 12-month freedom from documented atrial fibrillation, atrial tachycardia, or atrial flutter recurrence were 81.5% and 92.7% per stringent monitoring and standard-of-care monitoring (excluding TTM), respectively. The first-pass isolation rate was 83.1%, represented by no acute reconnection after the 30-minute waiting period. Freedom from repeat ablation at 12 months was 94.0%. CONCLUSIONS: The VS postapproval study confirms reproducibility of clinical safety and effectiveness of the standardized VS paroxysmal atrial fibrillation ablation workflow with >80% 12-month freedom from atrial tachyarrhythmia recurrence and first-pass isolation rate of 83.1%. Procedures were performed with minimal fluoroscopy. (Evaluation of VISITAG SURPOINT™ Module With External Processing Unit [EPU]; NCT03624881).

BACKGROUND: Nurse managers have experienced tremendous stress during the COVID-19 pandemic, contributing to negative psychological outcomes. Positive professional well-being is a construct that can be promoted to mitigate poor psychological outcomes and burnout in nurses. Little is known about the health, healthy behaviors, effects of stress on homelife, and well-being of nurse managers in the United States (U.S.). AIMS: The aims of the study were to explore nurse managers' well-being related to self-reported stress and health perceptions and habits. METHODS: A sample of 80 (41% response rate) nurse managers responded to a cross-sectional web-based survey sent via email in a southwestern U.S. 13-hospital system. Nurses answered 39 quantitative questions about demographics, well-being (9-item Well-Being Index [WBI]), perceptions of stress affecting homelife, and perceptions of health and health-related behaviors. RESULTS: Mean WBI (2.9 [2.7]) indicated risk for poor psychological outcomes. Managers (75%) reported stress from work affected their personal lives and a decline in overall health during the pandemic. Most (80%) reported burnout and emotional problems. Nurse managers had 8.1 times increased risk of poor WBI scores if stress from work affected their personal life than if they reported no spillover stress into their personal life (OR = 8.1, 95% CI [2.6, 25.0]). LINKING EVIDENCE TO ACTION: Findings from this study add a nuanced understanding of nurse managers' well-being. The strongest risk factor for poor WBI scores was stress levels affecting personal life. Interventions to improve well-being in nurse managers are needed. Limitations are the convenience sampling, limited geographic location, and response rate of <50%. Further research is needed to support nurse managers in stress reduction and development of boundaries that prohibit the spillover effect of workplace stress. Organizations may consider a combination of administrative support and changes as well as provision of on-the-job training of interventions that support individual well-being.

Despite intensive research efforts, there remains a need for novel methods to improve the ossification of scaffolds for bone tissue engineering. Based on a common phenomenon and known pathological conditions of peritoneal membrane ossification following peritoneal dialysis, we have explored the possibility of regenerating ossified tissue in the peritoneum. Interestingly, in addition to inflammatory cells, we discovered a large number of multipotent mesenchymal stem cells (MSCs) in the peritoneal lavage fluid from mice with peritoneal catheter implants. The osteogenic potential of these peritoneal progenitor cells was demonstrated by their ability to easily infiltrate decalcified bone implants, produce osteocalcin and form mineralized bone in 8 weeks. Additionally, when poly(l-lactic acid) scaffolds loaded with bone morphogenetic protein-2 (a known osteogenic differentiation agent) were implanted into the peritoneum, signs of osteogenesis were seen within 8 weeks of implantation. The results of this investigation support the concept that scaffolds containing BMP-2 can stimulate the formation of bone in the peritoneum via directed autologous stem and progenitor cell responses.

BACKGROUND: Ketorolac tromethamine is a non-steroidal anti-inflammatory drug (NSAIDs) that is widely used in the emergency department (ED) for the treatment of moderate-to-severe pain. Ketorolac, like other NSAIDs, exhibits an analgesic ceiling effect and previous research suggests that 10 mg is possibly the ceiling dose. Do the patterns of ketorolac dosing by emergency physicians follow its analgesic ceiling dose? METHODS: This was a single center retrospective, descriptive study to characterize patterns of ketorolac administration in ED patients. Data for all patients who received ketorolac during the ten year study period from January 1, 2003 to January 1, 2013 were collected from the electronic medical record of an urban community ED with an annual volume of 116 935 patients. RESULTS: There were 49 605 ketorolac administrations during the study period; 38 687 (78%) were given intravenously, 9 916 (20%) intramuscularly, and 1 002 (2%) orally. Through the intravenous route, 5 288 (13.7%) were 15 mg, 32 715 (84.6%) were 30 mg, 15 (0.03%) were 60 mg, and 669 (1.7%) were other varying doses. Through the intramuscular route, 102 (1.0%) were 15 mg, 4 916 (49.6%) were 30 mg, 4 553 (45.9%) were 60 mg, and 345 (3.5%) were other varying doses. The most common diagnoses at discharge were renal colic (21%), low back pain (17%) and abdominal pain (11%). CONCLUSION: The data show that ketorolac was prescribed above its ceiling dose of 10 mg in 97% of patients who received intravenous doses and in 96% of patients receiving intramuscular doses.

Background Transcatheter aortic valve replacement (TAVR) has solidified the importance of a heart team and revolutionized patient selection for surgical aortic valve replacement (SAVR). It is unknown if hospital ability to offer TAVR impacts SAVR outcomes. We investigated outcomes after SAVR between TAVR and non-TAVR centers. Methods and Results Hospitalizations of patients aged ≥50 years, undergoing elective SAVR between January 2012 and September 2015, in the National Readmission Database (NRD) were included. Multivariable logistic, linear, and generalized logistic regression models were used to adjust for patient and hospital characteristics and estimate association between undergoing SAVR at a TAVR center, compared with a non-TAVR center. The association between TAVR volumes and these outcomes were also assessed. SAVR hospitalizations (n = 32 198) were identified; 22 066 (69%) at TAVR and 10 132 (31%) at non-TAVR centers. SAVRs at TAVR centers had lower odds of inpatient mortality (odds ratio 0.67, 95% CI 0.55-0.82) and discharge to skilled nursing facility (odds ratio 0.92, 95% CI 0.85-0.99), compared with non-TAVR centers. There was no difference in LOS (change in estimate -0.09, 95% CI -0.26 to 0.08) or 30-day re-admission (odds ratio 0.95, 95% CI 0.88-1.03). SAVRs performed at the highest TAVR volume centers had the lowest inpatient mortality, compared with non-TAVR centers (odds ratio 0.43 95% CI 0.29-0.63). Conclusions Patients undergoing SAVR at TAVR centers are more likely to survive and have better discharge disposition than patients undergoing SAVR at non-TAVR centers. Whether this represents benefits of a heart-team approach to care or differences in patient selection for SAVR when TAVR is unavailable requires further study.

AIM: To evaluate the effect of a manager-required RN competency on staff nurses' perceived knowledge, ability and frequency of information-seeking activities. BACKGROUND: Basing clinical practice on research and standards of care is essential to delivering appropriate care with optimal outcomes. Nurses' information-seeking abilities are critical for acquiring evidence-based answers to aid clinical decision-making, yet nurses under-utilize library resources and report barriers. A unit manager sought to test the effect of an innovative competency for acquiring and appraising evidence for practice. METHODS: This longitudinal descriptive study evaluated 28 nurses before and after a 1-hr class, as well as 5 months later. The class covered library information services and the basics of critiquing research articles. RESULTS: Nurses had statistically significant improvements in four of five items measuring knowledge/ability and four of five items measuring frequency of information-seeking activities. At 5 months, most knowledge/ability items increased. There was no effect of nurse characteristics on outcomes. CONCLUSIONS: A required competency improved nurses' knowledge, ability and frequency of acquiring and appraising evidence with a single 1-hr class and a hands-on practice activity. Unit managers can have great impact on nurses' use of evidence for practice.

Abstract Background Tumor lysis syndrome (TLS) is a life‐threatening oncologic emergency associated with fatal complications including arrhythmia. The epidemiology and mortality outcomes of arrhythmia in TLS are scarcely studied in the literature. Methods We used the National Inpatient Sample (NIS) to study the prevalence and outcome of arrhythmia in patients hospitalized with TLS (ICD‐9 code 277.88) from 2009 to 2014. Baseline characteristics, burden of arrhythmia, and pertinent outcomes were analyzed. Multivariable regression analysis was performed to identify the impact of underlying malignancy in predicting TLS‐related mortality. Results A total of 9034 cases of arrhythmia among 37 861 TLS patients were identified. More than half of the arrhythmia cases (67%) were found among white old (&gt;65) males admitted to large bed size and urban teaching hospitals. Arrhythmic cohort showed higher frequency of comorbidities such as fluid‐electrolyte disturbances, hypertension, congestive heart failure, renal failure, dyslipidemia, diabetes, pulmonary circulatory disorders, chronic pulmonary disease, coagulopathy, and deficiency anemia. The most common malignancies were leukemia, lymphoma, metastatic tumor, and solid tumor without metastasis. We found significantly higher odds of in‐hospital mortality among patients with TLS compared to general inpatient population on unadjusted (OR 9.69, 95% CI: 9.27‐10.13, P &lt; .001) and adjusted (OR 4.62, 95% CI: 4.39‐4.85) multivariable analyses. Overall in‐hospital mortality (32% vs 21.3%), median length of stay (11 days vs 9 days), and hospital charges were higher among arrhythmic than nonarrhythmic patients. Conclusion With the availability of more advanced cancer therapy in the US, nearly one in four inpatient encounters of TLS had arrhythmia. Arrhythmia in TLS patients was associated with higher odds of mortality and increased resource utilization. Therefore, strategies to improve the supportive care of TLS patients plus timely diagnosis and treatment of arrhythmia are of utmost importance in reducing mortality and health‐care cost.

BACKGROUND: During the COVID-19 pandemic, acute care nurse managers functioned in a critical role by helping to advance the mission and goals of their organization while navigating a rapidly evolving healthcare landscape. This resulted in high levels of ongoing job-related stress which is linked to negative physical, psychological, and job-related outcomes. Little is known about the perceptions regarding their own professional well-being during this time. AIM: The aim of this study was to qualitatively describe acute care nurse managers' perceptions of and barriers to their professional well-being. METHODS: Using a qualitative descriptive approach, nurse managers from a hospital system in the southwestern United States responded to two short-answer, survey-based questions in 2022: (1) "Describe the definition of nurse-manager well-being in your own words" and (2) "What do you feel is your biggest barrier to professional well-being?" Reflexive thematic analysis was utilized to analyze participant responses (N = 80). RESULTS: Professional well-being is a complex concept influenced by the nurse manager's ability to navigate work-life balance; care for their own physical, emotional, and spiritual selves; give and receive support from stakeholders; and manage feelings of thriving vs. struggling in the role. Barriers most cited as influencing well-being included having too little time to get things done coupled with increasing workloads, feeling stuck in the middle among stakeholders, and coping with ongoing staffing challenges. LINKING EVIDENCE TO ACTION: The definition of and barriers to well-being are influenced by the specific needs and experiences of the nurse manager. While not all barriers can be immediately removed, the identification of individual and organization-specific barriers needs to be taken seriously, reviewed by those who can promote change, and evidence-based solutions for improvement piloted or implemented when feasible.

PURPOSE: The primary goals of the study were to assess maternal knowledge and attitudes about the newborn screening bloodspot repository program in Texas and to evaluate the effect of a video about the bloodspot repository on the rate of parental permission to store infant bloodspots. DESIGN: This descriptive, comparative study used descriptive statistics, nonparametric tests, and multivariable analyses to describe the sample, compare groups, and determine associations between factors that influenced parents' decisions to permit state storage of infant bloodspots. RESULTS: There were 465 mothers in the study. Maternal knowledge about basic genetics and risks of genetic testing was poor, but mothers reported strong trust in the state to make good decisions about using genetic material for research. Race, ethnicity, and attitude toward research significantly influenced decisions to opt-in to the bloodspot storage program. Postpartum nurses provided the bulk of information about newborn screening and dried bloodspots, although 2/3 of respondents would have preferred to obtain this information prior to birth. CLINICAL IMPLICATIONS: Although postpartum nurses are the most common source of information about newborn screening, genuine informed consent for bloodspot storage is questionable. Information about newborn screening and bloodspot storage needs to be addressed in community venues prior to birth.

BACKGROUND: Atrial fibrillation (AF) is common in patients undergoing transcatheter aortic valve replacement (TAVR) but there is conflicting evidence on whether AF impacts outcomes after TAVR. METHODS: Hospitalizations of adults ≥50 years old who had undergone elective TAVR from 2012 to 2015 were included. Poisson regression was used to assess changes in in-hospital complications, average length of stay (LOS) after TAVR, and discharge disposition over time. Multivariable logistic, linear, and generalized logistic regression models, adjusting for patient and hospital characteristics, were used to estimate the effect of AF on inpatient outcomes. RESULTS: A total of 7,266 TAVR hospitalizations were included; AF was present in 44% of patients. Between 2012 and 2015, there was a significant decrease in the incidence of acute kidney injury, blood transfusion, average LOS, and inpatient mortality both for AF and non-AF patients. However, the incidences of vascular complications and major bleeding decreased only among non-AF patients. After adjustment, AF was associated with increased incidences of TIA/stroke (OR 1.36, 95% CI: 1.01, 1.85), acute kidney injury (OR 1.54, 95% CI: 1.33, 1.78), blood transfusion (OR 1.14, 95% CI: 1.00, 1.30), transfer to a skilled nursing facility (OR 1.38, 95% CI: 1.23, 1.55), and longer average LOS (CIE 1.30, 95% CI: 1.06, 1.54). AF was not associated with inpatient mortality (OR 1.09, 95% CI: 0.81, 1.48). CONCLUSIONS: AF is prevalent among patients undergoing TAVR, and is associated with higher incidences of inpatient complications, discharge to a skilled nursing facility, and longer average LOS. While the incidence of many complications has declined in the past few years, continued efforts to further reduce complications in patients with AF is urgently required for expansion of TAVR to broader populations.

Cartilage injury induced by acute excessive contact stress is common and mostly affects young adult. Although early detection of cartilage injury may prevent serious and lifelong arthritic complications, early detection and treatment is not possible due to the lack of a reliable detection method. Since chondrocyte injury and subsequent cell death are the early signs of cartilage injury, it is likely that cartilage cell apoptosis can be used to predict the extent of injury. To test this hypothesis, a near infrared probe was fabricated to have high affinity to apoptotic cells. In vitro tests show that this apoptosis probe has low toxicity, high specificity, and high affinity to apoptotic cells. In addition, there is a positive relationship between apoptotic cell numbers and fluorescence intensities. Using a mouse xiphoid injury model, we found significant accumulation of the apoptosis probes at the injured xiphoid cartilage site. There was also a positive correlation between probe accumulation and the number of apoptotic chondrocytes within the injured xiphoid cartilage, which was confirmed by TUNEL assay. The results support that the apoptosis probes may serve as a powerful tool to monitor the extent of mechanical force-induced cartilage injury in vivo.

Left ventricular pseudoaneurysms (LVP) is a very rare but lethal complication of myocardial infarction, cardiac surgery, trauma, and infection. LVP is characterized by left ventricle wall ruptures and is contained by pericardium or scar tissue. Patients with LVP can present with congestive heart failure, arrhythmias. Development of tamponade after left ventricular rupture is usually fatal. Casapo et al reported the incidence rate of LVP at around 0.29% (Clin Cardiol 1997). Studies suggest that, of all causes of LVP, myocardial infarction and cardiac surgery results in 55% and 33% respectively. In cardiac surgery, Mitral Valve replacement is associated with a higher rate of LVP. Traditionally, the preferred management of a left ventricular pseudoaneurysm has been emergency surgical intervention. The surgery itself has high mortality ranging from 20-36% but some of the recent studies have shown improvement in mortality to 10 %. [ However cases, where surgery cannot be considered because of high risk and medical management is preferred, mortality is even high and its close to around 48 %. But in last two decade or so, enhanced transcatheter procedural approaches and advanced device technology has made the percutaneous closure of LVP an increasingly practical option, especially in a patient with an unfavorable predicted surgical outcome. Percutaneous closure of the left ventricular pseudoaneurysm was first described by Clift et al10 in 2004. In 2016, Okuyama and colleagues performed the first case of a PTC successfully following transcatheter aortic valve replacement using trans-apical access. Before that, most cases reported in the literature were performed via surgery following life-threatening myocardial infarctions. There is no large study on the transcatheter management of LVP but multiple successful case studies have been reported which vouch for its future potential. There are also some reports of a hybrid approach which uses the PTC of the LVP to first stabilize the patient during the emergency setting followed by the gold standard surgical closure. This article will discuss in detail the anatomy of a left ventricular pseudoaneurysm, potential etiologies of LVP, indications for PTC, contraindications for PTC, the technique of PTC, possible complications of PTC, and the clinical significance of the advent of the PTC procedure.

BACKGROUND: Tumor lysis syndrome (TLS) is a potentially fatal complication in patients with large, rapidly proliferating tumor cell cancers that may occur after chemotherapy. Patients with TLS are complicated to treat and often have an unpredictable trajectory. OBJECTIVES: The purpose of this article is to report two cases with unusual clinical manifestations and unexpected outcomes during cancer treatment and to share best practices for this situation. METHODS: The authors described details from two unusual cases and outlined lessons learned. The authors described a newly developed clinical order set (protocol) to support optimal care for patients at risk for TLS. FINDINGS: Implementing best practices, the order set prompts early identification of TLS risk and provides step-by-step guidance to eliminate or control TLS.