Multiorgan Point-of-Care Ultrasound Assessment in Critically Ill Adults.

Traditional point-of-care ultrasound (POCUS) training highlights discrete techniques, single-organ assessment, and focused protocols. More recent developments argue for a whole-body approach, where the experienced clinician-ultrasonographer crafts a personalized POCUS protocol depending on specific clinical circumstances. This article describes this problem-based approach, focusing on common acute care scenarios while highlighting practical considerations and performance characteristics.

An overview of Internal Medicine Point-of-Care Ultrasound rotations in Canada.

BACKGROUND: Point-of-care ultrasound (POCUS) is a growing part of internal medicine training programs. Dedicated POCUS rotations are emerging as a particularly effective tool in POCUS training, allowing for longitudinal learning and emphasizing both psychomotor skills and the nuances of clinical integration. In this descriptive paper, we set out to review the state of POCUS rotations in Canadian Internal Medicine training programs. RESULTS: We identify five programs currently offering a POCUS rotation. These rotations are offered over two to thirteen blocks each year, run over one to four weeks and support one to four learners. Across all programs, these rotations are set up as a consultative service that offers POCUS consultation to general internal medicine inpatients, with some extension of scope to the hospitalist service or surgical subspecialties. The funding model for the preceptors of these rotations is predominantly fee-for-service using consultation codes, in addition to concomitant clinical work to supplement income. All but one program has access to hospital-based archiving of POCUS exams. Preceptors dedicate ten to fifty hours to the rotation each week and ensure that all trainee exams are reviewed and documented in the patient's medical records in the form of a consultation note. Two of the five programs also support a POCUS fellowship. Only two out of five programs have established learner policies. All programs rely on In-Training Evaluation Reports to provide trainee feedback on their performance during the rotation. CONCLUSIONS: We describe the different elements of the POCUS rotations currently offered in Canadian Internal Medicine training programs. We share some lessons learned around the elements necessary for a sustainable rotation that meets high educational standards. We also identify areas for future growth, which include the expansion of learner policies, as well as the evolution of trainee assessment in the era of competency-based medical education. Our results will help educators that are endeavoring setting up POCUS rotations achieve success.

Risks and Benefits of Fluid Administration as Assessed by Ultrasound.

For patients in shock, decisions regarding administering or withholding IV fluids are both difficult and important. Although a strategy of relatively liberal fluid administration has traditionally been popular, recent trial results suggest that moving to a more fluid-restrictive approach may be prudent. The goal of this article was to outline how whole-body point-of-care ultrasound can help clarify both the possible benefits and the potential risks of fluid administration, aiding in the risk/benefit calculations that should always accompany fluid-related decisions.

Lower household income is associated with an increased risk of hospital readmission in patients with decompensated cirrhosis.

BACKGROUND AND AIM: The impact of household income, a surrogate of socioeconomic status, on hospital readmission rates for patients with decompensated cirrhosis has not been well characterized. METHODS: The Nationwide Readmission Database from 2012 to 2014 was used to study the association of lower median household income on 30-, 90-, and 180-day hospital readmission rates for patients with decompensated cirrhosis. RESULTS: From the 42 679 001 hospital admissions contained in the sample, there were 82 598 patients with decompensated cirrhosis who survived a hospital admission in the first 6 months of the year. During a uniform 6-month follow-up period, 25 914 (31.4%), 39 928 (48.3%), and 47 496 (57.5%) patients were readmitted at 30, 90, and 180 days, respectively. After controlling for demographic and clinical confounders, patients residing in the three lowest income quartiles were significantly more likely to be readmitted at 30 days than those in the fourth quartile (first quartile, odds ratio [OR] 1.32 [95% confidence interval, CI, 1.17-1.47, P < 0.01]; second quartile, OR 1.25 [95% CI 1.13-1.38, P < 0.01]; and third quartile, OR 1.08 [95% CI 0.97-1.20, P = 0.07]). The association between lower socioeconomic status and the higher risk of readmissions persisted at 90 days (first quartile, OR 1.21 [95% CI 1.14-1.30, P < 0.01]) and 180 days (first quartile, OR 1.32 [95% CI 1.20-1.44, P < 0.01]). CONCLUSION: Patients with decompensated cirrhosis residing in the lowest income quartile had a 32% higher odds of hospital readmissions at 30, 90, and 180 days compared with those in the highest income quartile.

Lung Ultrasound for Cardiologists in the Time of COVID-19.

Lung ultrasound (LUS) is a point-of-care ultrasound technique used for its portability, widespread availability, and ability to provide real-time diagnostic information and procedural guidance. LUS outperforms lung auscultation and chest X-ray, and it is an alternative to chest computed tomography in selected cases. Cardiologists may enhance their physical and echocardiographic examination with the addition of LUS. We present a practical guide to LUS, including device selection, scanning, findings, and interpretation. We outline a 3-point scanning protocol using 2-dimensional and M-mode imaging to evaluate the pleural line, pleural space, and parenchyma. We describe LUS findings and interpretation for common causes of respiratory failure. We provide guidance specific of COVID-19, which at the time of writing is a global pandemic. In this context, LUS emerges as a particularly useful tool for the diagnosis and management of patients with cardiopulmonary disease.

The Impact of Chronic Ozone and Particulate Air Pollution on Mortality in Patients With Sepsis Across the United States.

OBJECTIVE: The impact of chronic exposure to air pollution on mortality in patients with sepsis is unknown. We attempted to quantify the relationship between air pollution, notably excess ozone, and particulate matter (PM), with in-hospital mortality in patients with sepsis nationwide. METHODS: The 2011 Nationwide Inpatient Sample (NIS) was linked with ambient air pollution data from the Environmental Protection Agency for both 8-hour ozone exposure and annual mean 2.5-micron PM (PM2.5) pollution levels. A validated severity of illness model for sepsis using administrative data was used to control for sepsis severity. RESULTS: The records of 8 023 590 hospital admissions from the 2011 NIS sample were analyzed. Of these, there were 444 928 patients who met the Angus definition of sepsis, treated in hospitals for which air pollution data were available. The cohort had an overall mortality of 11.2%. After adjustment for severity of sepsis, increasing exposure to ozone pollution was associated with increased risk of mortality (odds ratio [OR]: 1.04 for each 0.01 ppm increase, 95% confidence interval [CI]: 1.03-1.05; P < .01). Particulate matter was not associated with mortality (OR: 0.99 for each 5 µg/m3 increase, 95% CI: 0.97-1.01; P = .28). When stratified by sepsis source, ozone pollution had a higher impact on patients with pneumonia (OR: 1.06, 95% CI: 1.04-1.08; P < .01) compared to those patients without pneumonia (OR: 1.02, 95% CI: 1.01-1.03; P < .01). CONCLUSION: Exposure to increased levels of ozone but not particulate air pollution was associated with higher risk of mortality in patients with sepsis. This association was strongest in patients with pneumonia but persisted in all sources of sepsis. Further work is needed to understand the relationship between ambient ozone air pollution and sepsis outcomes.

Better With Ultrasound: Transcranial Doppler.

Transcranial Doppler (TCD) ultrasound is a noninvasive method of obtaining bedside neurologic information that can supplement the physical examination. In critical care, this can be of particular value in patients who are unconscious with an equivocal neurologic examination because TCD findings can help the physician in decisions related to more definitive imaging studies and potential clinical interventions. Although TCD is traditionally the domain of sonographers and radiologists, there is increasing adoption of goal-directed TCD at the bedside in the critical care environment. The value of this approach includes round-the-clock availability and a goal-directed approach allowing for repeatability, immediate interpretation, and quick clinical integration. This paper presents a systematic approach to incorporating the highest yield TCD techniques into critical care bedside practice, and includes a series of illustrative figures and narrated video presentations to demonstrate the techniques described.

Palliative care in heart failure.

Palliative care (PC) is now recommended by all major cardiovascular societies for advanced heart failure (HF). PC is a philosophy of care that uses a holistic approach to address physical, psychosocial, and spiritual needs in patients with a terminal disease process. In HF, PC has been shown to improve symptoms and quality of life, facilitate advanced care planning, decrease hospital readmissions, and decrease hospital-associated healthcare costs. Although PC is still underutilized in HF, uptake is increasing. Specific strategies for successfully implementing PC in HF include early PC involvement, multidisciplinary collaboration, exploring patient values for end-of-life care, medical therapy (including both the addition of symptom-directed medications, as well as the removal of life-prolonging medications), and considerations regarding device therapy and mechanical support. Barriers to PC in HF include difficulties predicting the disease trajectory, patient and physician misconceptions, and lack of PC-trained physicians. Moving forward, PC will continue to be a key part of advanced HF care as our knowledge of this area grows.

Patterns of Palliative Care Referral in Patients Admitted With Heart Failure Requiring Mechanical Ventilation.

BACKGROUND: Palliative care is recommended for advanced heart failure (HF) by several major societies, though prior studies indicate that it is underutilized. AIM: To investigate patterns of palliative care referral for patients admitted with HF exacerbations, as well as to examine patient and hospital factors associated with different rates of palliative care referral. DESIGN: Retrospective nationwide cohort analysis utilizing the National Inpatient Sample from 2006 to 2012. Patients referred to palliative care were compared to those who were not. SETTING/PARTICIPANTS: Patients ≥18 years of age with a primary diagnosis of HF requiring mechanical ventilation (MV) were included. A cohort of non-HF patients with metastatic cancer was created for temporal comparison. RESULTS: Between 2006 and 2012, 74 824 patients underwent MV for HF. A referral to palliative care was made in 2903 (3.9%) patients. The rate of referral for palliative care in HF increased from 0.8% in 2006 to 6.4% in 2012 ( P < .01). In comparison, rate of palliative care referral in patients with cancer increased from 2.9% in 2006 to 11.9% in 2012 ( P < .01). In a multivariate logistic regression model, higher socioeconomic status (SES) was associated with increased access to palliative care ( P < .01). Racial differences were also observed in rates of referral to palliative care. CONCLUSION: The use of palliative care for patients with advanced HF increased during the study period; however, palliative care remains underutilized in this setting. Patient factors such as race and SES affect access to palliative care.

Association of Household Income Level and In-Hospital Mortality in Patients With Sepsis: A Nationwide Retrospective Cohort Analysis.

OBJECTIVE: Associations between low socioeconomic status (SES) and poor health outcomes have been demonstrated in a variety of conditions. However, the relationship in patients with sepsis is not well described. We investigated the association of lower household income with in-hospital mortality in patients with sepsis across the United States. METHODS: Retrospective nationwide cohort analysis utilizing the Nationwide Inpatient Sample (NIS) from 2011. Patients aged 18 years or older with sepsis were included. Socioeconomic status was approximated by the median household income of the zip code in which the patient resided. Multivariate logistic modeling incorporating a validated illness severity score for sepsis in administrative data was performed. RESULTS: A total of 8 023 590 admissions from the 2011 NIS were examined. A total of 671 858 patients with sepsis were included in the analysis. The lowest income residents compared to the highest were younger (66.9 years, standard deviation [SD] = 16.5 vs 71.4 years, SD = 16.1, P < .01), more likely to be female (53.5% vs 51.9%, P < .01), less likely to be white (54.6% vs 76.6%, P < .01), as well as less likely to have health insurance coverage (92.8% vs 95.9%, P < .01). After controlling for severity of sepsis, residing in the lowest income quartile compared to the highest quartile was associated with a higher risk of mortality (odds ratio [OR]: 1.06, 95% confidence interval [CI]: 1.03-1.08, P < .01). There was no association seen between the second (OR: 1.02, 95% CI: 0.99-1.05, P = .14) and third (OR: 0.99, 95% CI: 0.97-1.01, P = .40) quartiles compared to the highest. CONCLUSION: After adjustment for severity of illness, patients with sepsis who live in the lowest median income quartile had a higher risk of mortality compared to residents of the highest income quartile. The association between SES and mortality in sepsis warrants further investigation with more comprehensive measures of SES.

Trends in Extracorporeal Membrane Oxygenation for the Treatment of Acute Respiratory Distress Syndrome in the United States.

OBJECTIVES: Our aim was to describe patient characteristics and trends in the use of extracorporeal membrane oxygenation (ECMO) for the treatment of acute respiratory distress syndrome (ARDS) in the United States from 2006 to 2011. METHODS: We used the Nationwide Inpatient Sample to isolate all patients aged 18 years who had a discharge International Classification of Diseases, Ninth Revision diagnosis of ARDS, with and without procedure codes for ECMO, between 2006 and 2011. RESULTS: We examined a total of 47 911 414 hospital discharges, representing 235 911 271 hospitalizations using national weights. Of the 1 479 022 patients meeting the definition of ARDS (representing 7 281 206 discharges), 775 underwent ECMO. There was a 409% relative increase in the use of ECMO for ARDS in the United States between 2006 and 2011, from 0.0178% to 0.090% ( P = .0041). Patients treated with ECMO had higher in-hospital mortality (58.6% vs 25.1%, P < .0001) and longer hospital stays (15.8 days vs 6.9 days, P < .0001). They were also younger (47.9 vs 66.4 years, P < .0001) and more likely to be male (62.2% vs 49.6%, P < .0001). The median time to initiate ECMO from the time of admission was 0.5 days (interquartile range [IQR] 4.9 days). CONCLUSION: There has been a dramatic increase in ECMO use for the treatment of ARDS in the United States.

The association between anemia and neurological outcome in hypoxic ischemic brain injury after cardiac arrest.

AIM: To examine the relationship between daily mean hemoglobin concentration and neurological outcome in hypoxic ischemic brain injury (HIBI) following cardiac arrest. METHODS: We conducted a single center retrospective observational study using a database of HIBI patients between March 2009 and December 2014. We included all adults admitted to the intensive care unit following an in-hospital or out-of-hospital cardiac arrest. The primary outcome was neurological outcome measured by the Cerebral Performance Category (CPC) at hospital discharge. Multivariable logistic regression was used to analyze the association of mean hemoglobin concentration over 48h and 7 days after the onset of HIBI and discharge CPC. Favorable and unfavorable neurological outcome was dichotomized for a discharge CPC 1-2 vs 3-5, respectively. RESULTS: 118 patients were included in the analysis. Patients with a favorable neurological outcome had higher mean 7-day hemoglobin (115g/L vs 107g/L; p=0.05) compared to those with unfavorable outcome. Multivariate logistic regression controlling for age, time to return of spontaneous circulation and blood transfusion demonstrated that lower mean 48-h hemoglobin concentration was associated with unfavorable outcome (OR 0.69 per 10 unit change in Hgb, 95% CI 0.54-0.88, p<0.01). A repeated analysis using mean Hgb for the first 7 days yielded similar results for unfavorable outcome (OR 0.75 per 10 unit change in Hgb, 95% CI 0.57-0.97, p=0.03). CONCLUSIONS: Lower mean hemoglobin concentration in the first 48h and 7 days following HIBI is associated with a higher odds of unfavorable outcome at hospital discharge. Further study to examine this association is warranted.

The Use of Thrombolysis for Acute Pulmonary Embolism in the United States: National Trends and Patient Characteristics from 2006 to 2011.

BACKGROUND: Thrombolysis for the treatment of pulmonary embolism (PE) has received significant attention in the literature over the past 10 years. OBJECTIVE: Our primary objective was to examine the trend in thrombolysis use in the United States from 2006 to 2011. Secondary objectives include examining patient and hospital characteristics associated with receiving thrombolysis and rates of complications associated with thrombolysis. METHODS: In this retrospective cohort study, we used the Nationwide Inpatient Sample from 2006 to 2011 to identify patients with a diagnosis of PE who received or did not receive thrombolytic agents. RESULTS: Examining the records of 47,911,414 hospital discharges identified a cohort of 1,317,329 patients with PE; of these patients, 10,617 received thrombolysis. During the study period, there was a 30% relative increase in the use of thrombolysis, from 0.68% (95% confidence interval [CI] 0.64-0.73%) to 0.89% (95% CI 0.83-0.95%; p < 0.01). After controlling for all factors in the model, factors associated with decreased access to thrombolysis were increasing age (odds ratio [OR] 0.981 [95% CI 0.980-0.982]; p < 0.01), female sex (OR 0.78 [95% CI 0.75-0.81]; p < 0.01), Black race (OR 0.86 [95% CI 0.81-0.91]; p < 0.01), Hispanic race (OR 0.78 [95% CI 0.71-0.86]; p < 0.01), other race (OR 0.72 [95% CI 0.59-0.88]; p = 0.02), and rural hospital location (OR 0.48 [95% CI 0.43-0.52]; p < 0.01). CONCLUSIONS: The use of thrombolysis increased between 2006 and 2011 in the United States. Patients who receive thrombolysis tend to be white men, live in higher-income ZIP codes, and receive the therapy at large academic teaching hospitals.

Optic nerve sheath diameter on computed tomography not predictive of neurological status post-cardiac arrest.

OBJECTIVE: Optic nerve sheath diameter (ONSD) measured on a head computed tomography (CT) has been suggested as a potential prognostic factor for poor neurological outcome after cardiac arrest. We performed a single centre retrospective cohort analysis to further investigate this relationship. METHODS: All patients >18 years of age admitted to St. Paul's Hospital in Vancouver, Canada who survived a cardiac arrest and had a CT scan of the head within 48 hours were included in the analysis. RESULTS: A total of 72 patients met inclusion criteria for the study; 54 (75.0%) of the patients had a poor neurological outcome, whereas 18 (25.0%) patients were discharged from the hospital with a good outcome. A CT head was obtained for patients in the good outcome group in a mean time of 9.3 hours (SD 10.0) compared to 10.2 hours (SD 11.2) for the poor outcome group (p=0.75). There was no difference in average ONSD observed between the two outcome groups (6.66 mm SD 0.78 v. 6.60 mm SD 0.82, p=0.77). Multiple logistic regression failed to show any association between ONSD and neurological outcome when adjusted for all other covariates (OR 1.32 95% CI 0.40-4.34, p=0.65). Setting an ONSD threshold of >8 mm (OR 2.32, 95% CI 0.14-39.40, p=0.55) or >7 mm (OR 0.28, 95% CI 0.03-2.77, p=0.28) also failed to show any association on neurological outcome. CONCLUSION: There was no observed difference in ONSD between those with a good neurological outcome and those with a poor outcome. ONSD was not an independent predictor of poor neurological outcome.

Association between seizures and mortality in patients with aneurysmal subarachnoid hemorrhage: A nationwide retrospective cohort analysis.

PURPOSE: The impact of seizures on outcomes in patients with subarachnoid hemorrhage (SAH) is not well understood, with conflicting results published in the literature. METHOD: For this retrospective cohort analysis, data from the Nationwide Inpatient Samples (NIS) for 2006-2011 were utilized. All patients aged ≥18 years with a primary admitting diagnosis of subarachnoid hemorrhage were included. Patients with a diagnosis of seizure were segregated from the initial cohort. Multivariable logistic regression modeled the risk of death while adjusting for severity of SAH as well as co-morbidities. The primary outcome of this analysis was in-hospital mortality. RESULTS: 12,647 patients met inclusion criteria for the study, of which 1336 had a diagnosis of seizures. The unadjusted in-hospital mortality was higher for patients with seizures compared to those without (16.2% vs 11.6%, p<0.01). Compared to patients without seizures, patients with seizures were younger (52.4 years SD 13.9 vs 54.8 years, SD 13.6; p<0.01), more likely to be male (35.6% vs 31.0%, p<0.01) and had longer hospital stays (18.3 days, IQR 12.0-27.5 vs 14.8 days, IQR 10.0-21.9; p<0.01). After adjusting for the severity of SAH, seizures were found to be associated with increased mortality (OR 1.57, 95% CI 1.32-1.87, p<0.01). CONCLUSION: In this large nationwide analysis, the presence of seizures in patients with SAH was associated with higher in-hospital mortality. This finding has potentially important implications for goals of care decision-making and prognostication, but further study in the area is needed.