Changes In Management Of Patients Research Articles

Routine Pathologic Examination of Femoral Head Specimens from Total Hip Arthroplasty May Not Be Indicated or Cost-effective: ASystematic Review.

BackgroundThere is considerable disparity in institutional practices surrounding routine pathologic examination of femoral heads removed during total hip arthroplasty (THA). Multiple groups have studied the merits of routine femoral head pathology in THA, without clear consensus. We sought to further investigate the existing evidence on routine pathologic examination of femoral heads retrieved during THA to determine if this practice provides additional clinical value and is cost-effective.Material and methodsTo conduct a systematic review of the literature, a medical librarian was consulted to develop and perform comprehensive searches in PubMed (1809-present), Embase (embase.com 1974-present), CINAHL (EBSCO, 1937-present), and the Cochrane Central Register of Controlled Trials (Wiley). Final searches resulted in 727 references. Through multiple reviewer screenings and assessments of eligible full-text articles, we included 14 articles for review.ResultsOur systematic review yielded pathologic examination results from 17,388 femoral head specimens collected during THA. In 0.85% of cases, the pathologic diagnosis differed in a meaningful way from the preoperative clinical diagnosis. Routine pathology changed patient management in approximately 0.0058% of cases. The average cost for pathologic examination of each specimen was $126.38.ConclusionRoutine pathologic examination of femoral heads retrieved during THA has limited impact on patient management. With an estimated 500,000 THAs performed in 2019, the economic feasibility of routine femoral head pathology is limited at an annual cost of up to $63,000,000 and cost per quality-adjusted life-year approaching infinity. However, surgeon discretion on a patient-specific or practice-specific basis should be used to make the final determination on the need for femoral head pathology.

Evaluation of neuroradiology emergency MRI interpretations: low discrepancy rates between on-call radiology residents' preliminary interpretations and neuroradiologists' final reports.

To evaluate the performance of on-call radiology residents in interpreting alone brain and spine MRI studies performed after hours, to describe their mistakes, and to identify influencing factors that increased the occurrence of errors. A total of 328 MRI examinations performed during a 13-month period (from December 1, 2019, to January 1, 2021) were prospectively included. Discrepancies between the preliminary interpretation of on-call radiology residents and the final reports of attending neuroradiologists were noted and classified according to a three-level score: level 1 (perfect interpretation or minor correction), level 2 (important correction without immediate change in patient management), or level 3 (major correction with immediate change in patient management). Categorical data were compared using Fisher's exact test. The overall discrepancy rate (level-2 and level-3 errors) was 16%; the rate of major discrepancies (only level-3 errors) was 5.5%. The major-discrepancy rate of second-year residents, when compared with that of senior residents, was significantly higher (p = 0.02). Almost all of the level-3 errors concerned cerebrovascular pathology. The most common level-2 errors involved undescribed aneurysms. We found no significant difference in the major-discrepancy rate regarding time since the beginning of the shift. The great majority of examinations were correctly interpreted. The rate of major discrepancies in our study was comparable to the data in the literature, and there was no adverse clinical outcome. The level of residency has an effect on the rate of serious errors in residents' reports. • The rate of major discrepancies between preliminary MRI interpretations by on-call radiology residents and final reports by attending neuroradiologists is low, and comparable to discrepancy rates reported for head CT interpretations. • The youngest residents made significantly more serious errors when compared to senior residents. • There was no adverse clinical outcome in patient morbidity as a result of an initial misdiagnosis.

How essential are in-person clinic visits during maintenance treatment of children with acute lymphoblastic leukemia?

Acute lymphoblastic leukemia (ALL) is the most common cancer in children. Treatment consists of an initial intensive phase of chemotherapy, followed by a prolonged period of maintenance chemotherapy intended to reduce the risk of relapse. During the COVID-19 pandemic, the need arose to identify and reduce non-essential hospital visits. We aimed to determine which proportion of in-person clinic visits during ALL maintenance therapy was associated with a change of management based on the results of the physical examination. Medical records of children receiving maintenance chemotherapy for B-precursor ALL between September 2019 and February 2020 were reviewed. Visits with a new finding on physical examination were divided into those where an in-person assessment was deemed essential versus not essential. Finally, we determined the proportion of essential in-person visits that resulted in a change of management. A total of 240 maintenance visits by 75 children were analyzed. An abnormal finding on physical examination was noted during 20 visits (8.3%). Of those, 14 (5.8%) uncovered a new finding, six (2.5%) were classified as "in-person visit essential," and among those six visits, three (1.2%) resulted in a change of patient management (one for acute otitis media, one for wheezing, and one for limp). Our findings support the evaluation of care delivery models other than in-person visits during ALL maintenance therapy. A prospective study is required to delineate criteria, benefits/risks, and families' perspectives associated with virtual care delivery and the optimal frequency of in-person visits.

Correlation of prognosis and cost-effectiveness of computed tomography for out-of-hospital cardiac arrest patients with return of spontaneous circulation in the Emergency Department.

To assess the prevalence of computed tomography application in out-of-hospital cardiac arrest cases during emergency department processes, its contribution to changes in patient management, and effects on hospital discharge, and its cost-effectiveness. The retrospective study was conducted at the Izmir Bakircay University Cigli Training and Research Hospital, Izmir, Turkey, and comprised data of adult out-of-hospital cardiac arrest patients who were brought to the emergency department and survived for at least 24 hours between June 21, 2016, and December 31, 2018. Demographic variables and computed tomography results were collected and analysed. Abnormalities found in computed tomography results that could have changed patient management, discharge results, and the cost of the computed tomography were recorded. Of the 109 patients, 65(59.6%) were men with a mean age of 62.1±14.2 years (range: 28-95 years), and the mean age of the 44(40.3%) female patients was 69.2±15.8 years (range: 18-96 years). Overall, 74(67.9%) patients underwent computed tomography in the emergency department after resuscitation. Acute abnormalities were found in 4(3.6%) scans, and 3(2.7%) abnormal scans resulted in management changes. Computed tomography of out-of-hospital cardiac arrest patients in the emergency department should not be a matter of routine, and the scan, if necessary, should be done post-admission.

Genetic Testing of Inherited Retinal Disease in Australian Private Tertiary Ophthalmology Practice.

BackgroundTo assess the prevalence of genetic testing for inherited retinal diseases (IRDs) in a tertiary practice setting.MethodsSingle-centre retrospective analysis of patients with diagnosed or suspected IRD.ResultsFour hundred and sixty-four patient records were analysed. Patients had received care for different IRDs grouped as follows: panretinal pigmentary retinopathies (283, 61%), macular dystrophies (136, 29.3%), stationary diseases (23, 5%), hereditary vitreoretinopathies (14, 3%), and other IRDs (8, 1.7%). The suspected pattern of inheritance of patients’ IRD was predominantly autosomal recessive (205, 44.2%). Genetic testing was performed with the corresponding results available for 44 patients (9.5%). Diagnostic yield was 65.9% for the results received. Genetic test results were available mostly for younger patients (13.1% for <45 years vs 6.2% ≥45 years of age, p = 0.01) and those who received greater than 12 months of care (16% for ≥12 months vs 4% for <12 months, p < 0.01). For patients without genetic testing results, reasons include awaiting a geneticist consultation (17.9%), awaiting test results (4.5%), or patient refusal (8.4%). Most clinical records (69.2%) did not document genetic testing status.ConclusionGenetic testing is increasingly being utilised in the work-up for patients with IRD worldwide. This large Australian private practice IRD cohort shows a low uptake of testing (around 10%), reflecting historical management patterns and accessibility of genetic counselling and testing. The results show that younger patients and those with a longer duration of care were more likely to have received genetic testing. As the importance of IRD genetic testing continues to increase, we expect to see a change in patient management within the Australian private ophthalmology system and testing rates to increase. Further research is required to identify and address clinician and patient barriers to improving genetic testing rates for IRD.

Quantification of 3/4D ultrasound pelvic floor changes induced by postpartum muscle training in patients with levator ani muscle avulsion: a parallel randomized controlled trial.

We believe that physiotherapy with muscle training (MT) of the postpartum pelvic floor may lead to a change in the clinical management of patients with avulsion of the puborectal portion of the levator ani muscle (LAM). Our objective is to assess whether physiotherapy with MT of the postpartum pelvic floor in patients with LAM avulsion produces changes in pelvic floor morphology evaluated by 3/4D transperineal ultrasound. This parallel randomized controlled trial (RCT) included 97 primiparous patients. A study was conducted in three parts. In the first part (3 months postpartum), primiparous patients with LAM avulsion were recruited, and the levator hiatus and the LAM areas were measured using 3/4D transperineal ultrasound. In the second part (3 to 6 months postpartum), patients were randomized into two groups, with one undergoing rehabilitation (experimental group) and another without rehabilitation (control group). At the end of 6 months, a new transperineal ultrasound was performed. In the third part (9 months postpartum), the levator hiatus and LAM dimensions were analyzed again. The RCT was registered at ClinicalTrials.gov (NCT03686956). Project PI16/01387 funded by Instituto de Salud Carlos III (Spain) integrated in the national I+D+i 2013-2016 and cofounded by the European Union (ERDF/ESF, "Investing in your future"). A total of 92 completed the study, including 46 patients in the experimental group and 46 in the control group. The experimental group had a greater LAM area at 6 months (9.2±1.9 vs. 7.6±2.1 cm2, P=0.008; 95% CI: 0.6-3.0) and 9 months after labor (9.4±2.7 vs. 7.6±2.0 cm2, P=0.012; 95% CI: 0.4-3.2), which was not observed at 3 months postpartum (8.3±1.6 vs. 7.5±2.3 cm2; P=0.183; 95% CI: 0.39-1.99). The levator hiatus area decreased more in the experimental group in almost all comparisons. The most significant change occurred from 3 to 6 months during the Valsalva maneuver (-3.92±5.12 vs. 0.45±3.06 cm2; P<0.005; 95% CI: 2.64-5.00). Women with a rehabilitated LAM through physiotherapy showed a significant reduction in the levator hiatus area during Valsalva while receiving in-person physical therapy (3 to 6 months after delivery). These differences did not persist once physical therapy was completed (6 to 9 months after delivery). ClinicalTrials.gov identifier NCT03686956.

Organ dysfunction and death in patients admitted to hospital with COVID-19 in pandemic waves 1 to 3 in British Columbia, Ontario and Quebec, Canada: a cohort study.

Background:There have been multiple waves in the COVID-19 pandemic in many countries. We sought to compare mortality and respiratory, cardiovascular and renal dysfunction between waves in 3 Canadian provinces.Methods:We conducted a substudy of the ARBs CORONA I study, a multicentre Canadian pragmatic observational cohort study that examined the association of pre-existing use of angiotensin receptor blockers with outcomes in adults admitted to hospital with acute COVID-19 up to April 2021 from 9 community and teaching hospitals in 3 Canadian provinces (British Columbia, Ontario and Quebec). We excluded emergency department admissions without hospital admission, readmissions and admissions for another reason. We used logistic and 0–1-inflated β regression models to compare 28-day and in-hospital mortality, and the use of invasive mechanical ventilation, vasopressors and renal replacement therapy (RRT) between the first 3 waves of the COVID-19 pandemic in these provinces.Results:A total of 520, 572 and 245 patients in waves 1, 2 and 3, respectively, were included. Patients in wave 3 were on average younger and had fewer comorbidities than those in waves 1 and 2. The unadjusted 28-day mortality rate was significantly lower in wave 3 (7.8%) than in wave 1 (18.3%) (odds ratio [OR] 0.43, 95% confidence interval [CI] 0.24–0.78) and wave 2 (16.3%) (OR 0.46, 95% CI 0.27–0.79). After adjustment for differences in baseline characteristics, the difference in 28-day mortality remained significant (adjusted OR wave 3 v. wave 1: 0.46, 95% CI 0.26–0.81; wave 3 v. wave 2: 0.52, 95% CI 0.29–0.91). In-hospital mortality findings were similar. Use of invasive mechanical ventilation or vasopressors was less common in waves 2 and 3 than in wave 1, and use of RRT was less common in wave 3 than in wave 1.Interpretation:Severity of illness decreased (lower mortality and less use of organ support) across waves among patients admitted to hospital with acute COVID-19, possibly owing to changes in patient demographic characteristics and management, such as increased use of dexamethasone. Continued application of proven therapies may further improve outcomes.Study registration:ClinicalTrials.gov, no. NCT04510623

Role of cardiac magnetic resonance in heart failure of initially unknown etiology: A 10-year observational study.

The heart failure (HF) population is estimated to be 64.3 million people worldwide and continues to grow. Identifying the underlying cause of HF is crucial for patient management and prognosis. We sought to evaluate the role of cardiac magnetic resonance (CMR) imaging to identify the etiology of HF and to evaluate the impact of CMR on diagnosis and patient management. We retrospectively reviewed the medical charts of 8630 consecutive patients referred for CMR in a large tertiary center between 2008 and 2017 (10 years). In this study, we only included patients referred for CMR due to HF of unknown etiology whose diagnostic workup had not revealed suspicion of any specific cardiac disease leading to HF. We also analyzed changes in patient management that were guided by the CMR findings, which were defined as changes in treatment and/or the necessity of further tests. The study sample included 243 patients: 173 (71.2%) patients were male, and the mean (SD) age was 44.0 (15.2) years. All patients underwent contrast-enhanced CMR. Late gadolinium enhancement (LGE) was detected in 74.9% of cases. In 94 patients (38.7%), CMR led to a new diagnosis. In 41 patients (16.9%), patient management was changed by CMR. The latter group comprised patients with coronary artery disease, amyloidosis, valvular disease, and cardiomyopathies other than dilated, namely hypertrophic, restrictive, and left ventricular noncompaction. Our study strongly suggests that CMR imaging is a valuable tool for determining the etiology of HF and affects patient management.

COVID-19 and Lung Cancer: A Comprehensive Overview from Outbreak to Recovery.

Lung cancer patients have been associated with an increased risk of COVID-19 infection, pulmonary complications, and worse survival outcomes compared to the general population. The world’s leading professional organizations provided new recommendations for the diagnosis, treatment, and follow-up of lung cancer patients during the pandemic as a guide for prioritizing cancer care issues. Telemedicine was preferred for non-urgent consultations, and screening programs were temporarily suspended, leading to possible diagnostic delays along with an estimated increase in cause-specific mortality. A vaccine campaign has recently emerged as the main weapon to fight the COVID-19 pandemic, inverting this negative trend. This work aims to provide a comprehensive overview of the epidemiology and immune-pathophysiology of SARS-CoV-2 infection in cancer patients, highlighting the most relevant changes in the clinical management of lung cancer patients during the pandemic.

A Systemic Review on the Diagnostic Accuracy of Point-of-Care Ultrasound in Patients With Undifferentiated Shock in the Emergency Department.

Early identification of the shock type and correct diagnosis is associated with better outcomes. Previous studies have suggested that point-of-care ultrasound (POCUS) increases the diagnostic accuracy of patients in undifferentiated shock. However, a complete overview of the diagnostic accuracy of POCUS and the related treatment changes when compared to standard care is still limited. Our objective was to compare POCUS against standard practice regarding the diagnostic accuracy and specific therapeutic management changes (fluid volume administration and vasopressor use) in patients with undifferentiated shock in the emergency department (ED).We conducted a systematic review in concordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. A systematic search was performed using Embase, PubMed, Cochrane Central Register for Controlled Trials, and clinicaltrials.gov. Two physicians independently selected the articles and assessed the quality of the studies independently with the Quadas-2 tool. All included studies used POCUS in adult patients in undifferentiated shock and described diagnostic accuracy or specific therapeutic management changes (fluid volume administration or vasopressor use) and compared this to standard care. The primary outcome was diagnostic accuracy. Secondary outcomes were the amount of fluid administered and vasopressor use in the ED. Only articles published after 1996 were included.There were 10,805 articles found of which 6 articles were included. Four out of six studies reported diagnostic accuracy, three reported on fluid administration and vasopressors. We found that the diagnostic accuracy improved through the use of POCUS when compared to the standard care group, increasing overall diagnostic accuracy from 45-60% to 80-89% when combined with clinical information. There was no significant difference in fluid administration or vasopressor use between the groups.In our systematic review, we found that the use of POCUS in patients that presented with undifferentiated shock in the ED improved the diagnostic accuracy of the shock type and final diagnosis. POCUS resulted in no changes in fluid administration or vasopressor use when compared to standard care. However, the results should be interpreted within the limitations of some of the studies that were included in the review.

Update on Intensive Care Unit Management of Stroke

In this review, we provide an update on the intensive care unit (ICU) management of ischemic stroke. Over the last decade, new evidence has led to rapid changes in the early management of patients admitted with acute ischemic stroke. Nevertheless, stroke remains a leading cause of disability. Consequently, a significant number of patients with acute ischemic stroke require ICU level care. The most frequent reasons for ICU admissions are large infarction with potential swelling, reduced level of consciousness, secondary hemorrhagic transformation, acute symptomatic seizures or respiratory failure and stroke-related disorders of the brain-heart interaction. Moreover, there is an increasing number of patients receiving intravenous thrombolysis or mechanical thrombectomy with a subsequent need of ICU monitoring. Several studies have shown that the implementation of specialized neuro-intensive care teams help to improve functional outcome after acute ischemic stroke. The main goal in the ICU management of stroke patients is to prevent secondary brain injury. To this end, a comprehensive approach to optimize systemic physiological homeostasis, control intracranial pressure, cerebral perfusion, hemodynamic and respiratory parameters is needed. Here, we summarize recent advances in invasive and non-invasive neuro-monitoring, decision making in decompressive neurosurgery for large supratentorial or cerebellar infarction, specific cardiorespiratory management, nutrition, temperature management and mobilization strategies in ischemic stroke.

Profile of Urology Patients at the Covid-19 Isolation Ward in Dr. Moewardi General Hospital Surakarta Periode June 2020 – May 2021 (A Retrospective Descriptive Study)

Objective: Coronavirus disease firstly discovered in December 2019, has caused many changes in patient management in the hospital, including in urology department. Several studies have demonstrated an increased rate of delayed care, with urology surgery having a delay of more than 8 weeks (Amota, O. et al., 2020). The medical workers are trying to reduce the spread rate by reducing of transmission (Amota, O. et al., 2020;and Sanyaolu, A. et al., 2020). The spread of this infectious disease is continuously increasing, hence the declaration of a pandemic (Cucinotta D). The COVID-19 status in the Solo city was updated to the red zone since the first year of the pandemic which makes the author interested in sharing information about COVID-19 in urology inpatients in the isolation ward (Tanggap Covid 19 Jawa Tengah, 2020). Materials and Methods: This study is a retrospective descriptive study that used secondary medical records data to determine the profile of urology patients in the COVID-19 isolation ward in dr. Moewardi General Hospital Surakarta for 1 year from May 2020 – June 2021. Results: This study found the urology patients in the COVID-19 ward were 26 patients, which was 4% of the total urology inpatients in the dr. Moewardi General Hospital in the first year of pandemic. Male patients consisted 85% of the total patients, with a mean age of over 50 years. The most frequent diagnosis was urinary retention. The mean duration of hospitalization was 2 weeks. The management in ward were urinary catheter insertion, closed cystostomy, prostate biopsy with local anesthesia, and emergency debridement surgery in isolated operating room. Delayed diagnostic procedures consisted of USG and BNO, while the delayed elective surgery consisted of cystoscopy, nephrectomy, direct visual urethrotomy (DVIU), and DJ stent insertion. Conclusions: The urology inpatients in the COVID-19 ward treated by multiple departments, in which the treatment of COVID-19 was prioritized before the definitive management from the urology department.

Autopsy in a Neonatal Intensive Care Unit: pathological and clinical agreement

ObjectivesTo evaluate neonatal autopsy rates at a tertiary hospital in southern Brazil ascertain the level of agreement between premortem and postmortem diagnosis. MethodsThe authors reviewed all neonatal autopsies performed over a 10-year period and described the percentage of neonates who died and underwent autopsy. The authors tested for agreement between autopsy findings and the cause of death as defined by the neonatologist. Agreement between clinical diagnosis and autopsy findings was classified using the modified Goldman criteria. Additional findings at autopsy were grouped by organ system. Linear regression and multiple comparisons were used for statistical analyses. ResultsDuring the study period, 382 neonates died at the Neonatal Intensive Care Unit (NICU). Consent to perform an autopsy was obtained for 73 (19.1%). The complete agreement between autopsy findings and the neonatologist's premortem diagnosis was found in 48 patients (65.8%). Additional findings were obtained at autopsy in 25 cases (34.2%). In 5 cases (6.9%), the autopsy findings contributed to subsequent genetic counseling. Seven autopsies (9.6%) revealed a diagnosis that would have changed patient management if established premortem. The autopsy rate increased by an average of 1.87% each year. ConclusionDespite a high level of agreement between clinical diagnosis and pathological findings, autopsies provided relevant data regarding the cause of death, providing additional clinical information to neonatologists and allowing genetic counseling of family members.

Abstract P4-10-06: Best quality care from a distance (BQual-D): Maintaining high quality care for hormone receptor positive (HR+) metastatic breast cancer (MBC) during the COVID pandemic, description of the program and provider satisfaction

Abstract Background: During the COVID pandemic, we designed and implemented a program, called BQual-D, to maintain high quality care for patients with HR+, HER2 negative MBC who were taking oral anti-cancer therapy and needed to shelter at home. This program augmented available clinical resources with (1) trained nurse coaches to manage side effects, improve adherence, monitor for cancer progression and screen for psychological distress via telehealth, and (2) a care coordinator to arrange blood testing at local labs to facilitate timely medication dose adjustments. BQual-D served patients from August, 2020 through April of 2021. Here, we describe survey results assessing provider satisfaction with BQual-D. Methods: Surveys assessing provider satisfaction were distributed in December, 2020 (Survey#1) and in April, 2021 (Survey#2). Provider demographics were collected with Survey#1. Eight questions assessed satisfaction with different aspects of the BQual-D program, including content of the nurse coach notes, communication with the program, timeliness of communication, frequency of notes, ease of reading the notes, ease of referring patients, and turnaround time for labs, which were rated on a Likert scale of 1 (strongly dissatisfied) to 10 (strongly satisfied), with an additional response choice of 0 (unable to assess). Providers were also asked if BQual-D led to changes in patient management (yes/no), the degree to which BQual-D supported the medical management of the patient (from 1=not at all to 7=significantly), the influence of BQual-D on patient wellbeing (positive effects, no change, negative effects), and the overall quality of care delivered by the program (from 1=excellent to 4=poor). Finally, we asked providers if they would continue to recommend their patients to BQual-D (yes, in the same way as the program has been deployed; yes but with improvements; or no). Results are described by frequencies and means. Results: Nineteen providers responded to Survey#1. Providers were physicians (31.6%), advanced practice providers (31.6%), nurses (31.6%) and a clinical pharmacist (5.3%). Respondents were 89.5% female, 94.7% White, and had a mean age of 44 years and mean 11 years in practice. Providers rated the quality of care provided by the BQual-D program as excellent (44%) or good (57%), all providers surveyed indicated that they would continue to recommend the program to patients, and 95% of providers indicated that the program had a positive effect on patients’ well-being. Half of the respondents indicated that BQual-D resulted in changes in or addition to patient management and 90% indicated that BQual-D significantly supported medical management. Providers were strongly satisfied (scores of 8-10 on the Likert scale) with overall communication with the BQual-D team (74%) and timeliness of communications (79%). Providers were also strongly satisfied with the content (68.4%), frequency (74%), and ease of reading (68%) program notes. Seven providers completed Survey#2, in which providers rated the overall quality of the program as excellent (57%) or good (43%); 86% indicated that they would continue to recommend the program to patients, and 86% indicated that the program had a positive effect on patients’ well-being. Conclusions: During the COVID pandemic, when sheltering at home was encouraged, provider satisfaction with BQual-D, which provided additional health resources (nurse coaches, care coordinator) to support patients on oral therapy for HR+ MBC, was high. Resources needed to implement BQual-D should be explored as a way of providing additional support for patients and providers in order to minimize the requirement for in-person visits. Funding: Supported by a grant from Pfizer. Citation Format: Gretchen Kimmick, Smrithi Davakaran, Heather Moore, Cynthia Rose, Pamela Gentry, Michael Willis, Susan Dent, Sarah Sammons, Jeremy Force, Kelly Westbrook, Carey Anders, Rebecca Shelby. Best quality care from a distance (BQual-D): Maintaining high quality care for hormone receptor positive (HR+) metastatic breast cancer (MBC) during the COVID pandemic, description of the program and provider satisfaction [abstract]. In: Proceedings of the 2021 San Antonio Breast Cancer Symposium; 2021 Dec 7-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2022;82(4 Suppl):Abstract nr P4-10-06.

The Challenge of Designing Stroke Trials That Change Practice: MCID vs. Sample Size and Pragmatism.

Randomized controlled trials (RCT) are the basis for evidence-based acute stroke care. For an RCT to change practice, its results have to be statistically significant and clinically meaningful. While methods to assess statistical significance are standardized and widely agreed upon, there is no clear consensus on how to assess clinical significance. Researchers often refer to the minimal clinically important difference (MCID) when describing the smallest change in outcomes that is considered meaningful to patients and leads to a change in patient management. It is widely accepted that a treatment should only be adopted when its effect on outcome is equal to or larger than the MCID. There are however situations in which it is reasonable to decide against adopting a treatment, even when its beneficial effect matches or exceeds the MCID, for example when it is resource-intensive and associated with high costs. Furthermore, while the MCID represents an important concept in this regard, defining it for an individual trial is difficult as it is highly context specific. In the following, we use hypothetical stroke trial examples to review the challenges related to MCID, sample size and pragmatic considerations that researchers face in acute stroke trials, and propose a framework for designing meaningful stroke trials that have the potential to change clinical practice.

Postoperative CT scans after resection of brain metastases: neurosurgical routine or added value?

Metastasis is the most common brain tumor in adults. It is the standard of care at most North American centers to obtain an early postoperative imaging after their resection. However, the necessity of this practice in the absence of a new postoperative deficit remains unclear. We retrospectively reviewed our surgical cohort of patients who underwent resection of brain metastases from July 2018 to June 2019. We collected demographic data and reviewed results of routine postoperative CT scans and neurological morbidities to examine the diagnostic and therapeutic yield of an early postoperative scan. In addition, we performed a systematic review of the topic. Our review included 130 patients, all of whom underwent gross total resection of one or more brain metastases. On postoperative CT, none had unexpected findings such as cavity hematoma or new ischemia; no changes in management resulted from postoperative imaging. One patient required a higher dose of dexamethasone on postoperative day 4 for delayed hemiparesis and aphasia due to cerebral edema. Three additional patients underwent a wound washout for delayed infection during a subsequent admission. Our systematic review identified three additional studies; in a combined cohort of 450 patients (including our own), no patients had clinically actionable findings on routine postoperative CT. Following resection of brain metastases, a routine postoperative CT scan has low diagnostic yield and did not change patient management in any cases examined in this work.

Point-of-Care Ultrasound Use by EMS Providers in Out-of-Hospital Cardiac Arrest.

Paramedics received training in point-of-care ultrasound (POCUS) to assess for cardiac contractility during management of medical out-of-hospital cardiac arrest (OHCA). The primary outcome was the percentage of adequate POCUS video acquisition and accurate video interpretation during OHCA resuscitations. Secondary outcomes included POCUS impact on patient management and resuscitation protocol adherence. A prospective, observational cohort study of paramedics was performed following a four-hour training session, which included a didactic lecture and hands-on POCUS instruction. The Prehospital Echocardiogram in Cardiac Arrest (PECA) protocol was developed and integrated into the resuscitation algorithm for medical non-shockable OHCA. The ultrasound (US) images were reviewed by a single POCUS expert investigator to determine the adequacy of the POCUS video acquisition and accuracy of the video interpretation. Change in patient management and resuscitation protocol adherence data, including end-tidal carbon dioxide (EtCO2) monitoring following advanced airway placement, adrenaline administration, and compression pauses under ten seconds, were queried from the prehospital electronic health record (EHR). Captured images were deemed adequate in 42/49 (85.7%) scans and paramedic interpretation of sonography was accurate in 43/49 (87.7%) scans. The POCUS results altered patient management in 14/49 (28.6%) cases. Paramedics adhered to EtCO2 monitoring in 36/36 (100.0%) patients with an advanced airway, adrenaline administration for 38/38 (100.0%) patients, and compression pauses under ten seconds for 36/38 (94.7%) patients. Paramedics were able to accurately obtain and interpret cardiac POCUS videos during medical OHCA while adhering to a resuscitation protocol. These findings suggest that POCUS can be effectively integrated into paramedic protocols for medical OHCA.

The Emerging Role of Next-Generation Imaging in Prostate Cancer.

Prostate cancer (PCa) is the most frequently diagnosed malignancy in men in developed countries and a leading cause of cancer death worldwide. Effective methods for diagnosing and staging PCa are necessary to guide treatment options in a personalized manner. The purpose of this paper is to review recent advances in molecular imaging and therapeutics and their expanding role in imaging and treating PCa. Compared with conventional imaging, PSMA PET has proven more accurate at detecting PCa in patients with newly diagnosed PCa or biochemically recurrent PCa. PSMA PET can also induce management changes in patients due to its superior accuracy in detecting metastatic disease. Further research is necessary to understand the appropriate role of PSMA PET in patients with known metastatic PCa and the impact on clinical outcomes in patients who undergo treatment planning using findings from PSMA PET. We review the role of molecular imaging in primary and biochemically recurrent PCa. We find that molecular imaging is effective in detecting PCa and may lead to management changes.

Learning Curve in Left Ventricular Assist Device Implantation: Low Volumes Do Not Equate Bad Outcomes.

Most implantations of left ventricular assist devices (LVAD) are performed in low-volume centers. This study aimed to evaluate the procedural learning curve of HeartMate II (HM2) implantations by comparing outcomes between two time periods in a low-volume center. All 51 consecutive patients undergoing HM2 implantation between January 2009 and December 2017 were reviewed and allocated into 2 groups: early-era group (from 2009 to 2014; n=25) and late-era group (from 2015 to 2017; n=26). The primary outcome was the 90-day mortality rate, and the secondary outcome was a composite of mortality, neurological event, reoperation for bleeding, need for temporary right ventricular assist device, and pump thrombosis at 90 days. Median follow-up time was 51 months (0-136). A cumulative sum (CUSUM) control analysis was used to establish a threshold of implantations that optimizes outcomes. Patients in the early era had a higher rate of diabetes, previous stroke, and inotrope support before HM2 implantation. The 90-day mortality rate was not significantly higher in the early era (24% vs. 15%, P=0.43), but the composite endpoint was significantly higher (76% vs. 42%, P=0.01). The CUSUM analysis found a threshold of 23 operations after which the composite endpoint was optimized. Patients undergoing HM2 implantation in a low-volume center have improving outcomes with number of cases and optimized results after a threshold of 23 cases. Significant changes in patient selection, surgical techniques, and patient management might lead to improved outcomes after LVAD implantation.

Utilization and impact of cardiovascular magnetic resonance on patient management in heart failure: insights from the SCMR Registry

BackgroundCardiovascular magnetic resonance (CMR) is an important diagnostic test used in the evaluation of patients with heart failure (HF). However, the demographics and clinical characteristics of those undergoing CMR for evaluation of HF are unknown. Further, the impact of CMR on subsequent HF patient care is unclear. The goal of this study was to describe the characteristics of patients undergoing CMR for HF and to determine the extent to which CMR leads to changes in downstream patient management by comparing pre-CMR indications and post-CMR diagnoses.MethodsWe utilized the Society for Cardiovascular Magnetic Resonance (SCMR) Registry as our data source and abstracted data for patients undergoing CMR scanning for HF indications from 2013 to 2019. Descriptive statistics (percentages, proportions) were performed on key CMR and clinical variables of the patient population. The Fisher’s exact test was used when comparing categorical variables. The Wilcoxon rank sum test was used to compare continuous variables.Results3,837 patients were included in our study. 94% of the CMRs were performed in the United States with China, South Korea and India also contributing cases. Median age of HF patients was 59.3 years (IQR, 47.1, 68.3 years) with 67% of the scans occurring on women. Almost 2/3 of the patients were scanned on 3T CMR scanners. Overall, 49% of patients who underwent CMR scanning for HF had a change between the pre-test indication and post CMR diagnosis. 53% of patients undergoing scanning on 3T had a change between the pre-test indication and post CMR diagnosis when compared to 44% of patients who were scanned on 1.5T (p < 0.01).ConclusionOur results suggest a potential impact of CMR scanning on downstream diagnosis of patients referred for CMR for HF, with a larger potential impact on those scanned on 3T CMR scanners.