Persistent polypharmacy and fall injury risk: the Health, Aging and Body Composition Study

Background Older adults receive treatment for fall injuries in both inpatient and outpatient settings. The effect of persistent polypharmacy (i.e. using multiple medications over a long period) on fall injuries is understudied, particularly for outpatient injuries. We examined the association between persistent polypharmacy and treated fall injury risk from inpatient and outpatient settings in community-dwelling older adults. Methods The Health, Aging and Body Composition Study included 1764 community-dwelling adults (age 73.6 ± 2.9 years; 52% women; 38% black) with Medicare Fee-For-Service (FFS) claims at or within 6 months after 1998/99 clinic visit. Incident fall injuries (N = 545 in 4.6 ± 2.9 years) were defined as the initial claim with an ICD-9 fall E-code and non-fracture injury, or fracture code with/without a fall code from 1998/99 clinic visit to 12/31/08. Those without fall injury (N = 1219) were followed for 8.1 ± 2.6 years. Stepwise Cox models of fall injury risk with a time-varying variable for persistent polypharmacy (defined as ≥6 prescription medications at the two most recent consecutive clinic visits) were adjusted for demographics, lifestyle characteristics, chronic conditions, and functional ability. Sensitivity analyses explored if persistent polypharmacy both with and without fall risk increasing drugs (FRID) use were similarly associated with fall injury risk. Results Among 1764 participants, 636 (36%) had persistent polypharmacy over the follow-up period, and 1128 (64%) did not. Fall injury incidence was 38 per 1000 person-years. Persistent polypharmacy increased fall injury risk (hazard ratio [HR]: 1.31 [1.06, 1.63]) after adjusting for covariates. Persistent polypharmacy with FRID use was associated with a 48% increase in fall injury risk (95%CI: 1.10, 2.00) vs. those who had non-persistent polypharmacy without FRID use. Risks for persistent polypharmacy without FRID use (HR: 1.22 [0.93, 1.60]) and non-persistent polypharmacy with FRID use (HR: 1.08 [0.77, 1.51]) did not significantly increase compared to non-persistent polypharmacy without FRID use. Conclusions Persistent polypharmacy, particularly combined with FRID use, was associated with increased risk for treated fall injuries from inpatient and outpatient settings. Clinicians may need to consider medication management for FRID and other fall prevention strategies in community-dwelling older adults with persistent polypharmacy to reduce fall injury risk.

Analysis of reasons for Emergency Department (ED) visits and subsequent hospital admissions in patients with solid malignancies: A retrospective study from a cancer center in rural Maine.

241 Background: Reducing ED visits in patients with cancer is cost saving and is particularly relevant during the COVID pandemic. We aim to identify patterns of ED visits among various cancer patients and reduce preventable ED visits and hospital admissions. Methods: We analyzed the number of ED visits and hospital admissions that occurred in patients with breast, lung, and Gastrointestinal (GI) cancers between July12019 and October31 2020 including demographics, stage, treatment type preceding the month of ED visit, reason, time of the day, day of the week the visit occurred. Results: 308 patients had 519 ED visits, 111 breast cancer patients had 184, 102 lung cancer patients had 186 and 95 GI cancer patients had 149 ED visits. 38% had > 1 visit. 51%, (37% breast, 60% Lung and 58 % GI cancer) had stage 4 disease at the time of visit. There were no visits in the month of May 2020. 275 (53%) visits required hospital admissions, 60% of ED visits in lung cancer, 54% in GI and 46 % in breast cancer patients required hospitalization. Most common reason for ED visits in breast cancer patients was fall/injury (20%), with median age of 71 years, none were cancer/ chemotherapy induced. Among lung and GI cancer patients respiratory (24%) and GI related (24%) symptoms were the most common reasons respectively, majority were cancer/chemotherapy related. Most common symptoms requiring hospital admissions were respiratory 21%, GI 18%, cardiac 12%. 11% and 9% of ED visits were due to fall/injury and cancer related pain, of these 3.6% and 9% resulted in hospital admissions respectively. Lung and GI cancer patients were more likely to be referred to the ED from the oncologist office (23%) than breast cancer patients (11%). Conclusions: Reasons for ED visits vary by tumor types and some may be preventable. Fall/injury in breast cancer patients and cancer related pain in lung and GI cancer patients were frequent reasons for preventable ED visits. In lung and GI cancer patients, cancer/chemotherapy related respiratory, GI symptoms are felt to be less avoidable since they may be related to disease progression or presenting symptoms. We have initiated several strategies such as ‘’systematic physical therapy assessment’’ of our breast cancer patients over age 70 to reduce ED visits due to fall/injury. We are developing strategies to involve palliative care early to reduce the number of ED visits related to cancer related pain We now have “call us first campaign” to assess and intervene before going to ED since most visits occurred during working hours.[Table: see text]

Causes and Characteristics of Children Unintentional Injuries in Emergency Department and Its Implications for Prevention

Background: Child unintentional injuries have become a hot topic worldwide, and substantial regional disparities existed in causes and characteristics. To date, limited data are available to investigate the causes and characteristics of child unintentional injuries from hospitals for children in China.Methods: A cross-sectional study was conducted between January 2017 and December 2018 in Shanghai, China. Patients aged <18 years with an unintentional injury presented to the emergency department were enrolled. Demographic information, Pediatric Risk for Mortality III score, and outcome variables were retrieved from electronic health records (EHRs). Frequencies and proportions of categorical variables and means and SDs of continuous variables are presented. Chi-square test and Student's t-test were used for the comparison between groups, as appropriate. Logistic regression analysis was used to estimate potential risk factors for admission to the hospital.Results: A total of 29,597 cases with unintentional injuries were identified between January 2017 and December 2018, with boys vs. girls ratio of 1.75. Preschool children account for approximately two-thirds of unintentional injuries in the emergency department. A distinctive pattern of mechanisms of unintentional injuries between gender was documented, and sports injury was significantly higher in boys than in girls (10.2 vs. 7.8%). Compared with Canadian Emergency Department Triage and Acuity Scale (CTAS) Grade 3 patients, Grade 2 [odds ratio (OR) = 2.99, 95% CI = 1.93–4.63, P < 0.001] and Grade 1 (OR = 74.85, 95% CI = 12.93–433.14, P < 0.001) patients had higher risk of inhospital admission. For causes of injuries, compared with falling, foreign body and poison had a lower risk of inhospital admission, while transport injury (OR = 1.31, 95% CI = 1.07–1.59, P = 0.008) and high fall injury (OR = 2.58. 95% CI =1.48–4.49, P < 0.001) had a significantly higher risk of admission.Conclusions: There was a significant relationship between age-groups and unintentional injuries between gender, with decreased injuries among girls growing up older. Preventive measures should be taken to reduce transport injury and high fall injury, which had a significantly higher risk of admission.

Quantitative sonographic assessment of quadriceps muscle thickness for fall injury prediction in patients undergoing maintenance hemodialysis: an observational cohort study

Background Accidental fall risk is high in patients undergoing maintenance hemodialysis. Falls are associated with fatal injury, comorbidities, and mortality. Risk assessment should be a primary component of fall prevention. This study investigated whether quadriceps muscle thickness measured using ultrasonography can predict fall injury among dialysis patients. Methods Using an observational cohort study design, 180 ambulatory hemodialysis patients were recruited from 2015 to 2016 from four dialysis clinics. The sum of the maximum quadriceps muscle thickness on both sides and the average of the maximum thigh circumference and handgrip strength after hemodialysis were calculated. Patients were stratified according to tertiles of quadriceps muscle thickness. Fall injury was surveyed according to the patient’s self-report during the one-year period. Results Among the 180 hemodialysis patients, 44 (24.4%) had fall injuries during the 12-month follow-up period. When the quadriceps muscle thickness levels were stratified into sex-specific tertiles, patients in the lowest tertile were more likely to have a higher incidence of fall injury than those in the higher two tertiles (0.52 vs. 0.19 and 0.17 fall injuries/person-year). After adjusting for covariates, lower quadriceps muscle thickness was found to be an independent predictor of fall injury (hazard ratio [95% confidence interval], 2.33 [1.22–4.52], P < 0.05). Receiver operating characteristic curves were constructed to determine the optimal cutoffs of quadriceps muscle thickness, thigh circumference, and handgrip strength that best predicted fall injury (quadriceps muscle thickness, 3.37 cm and 3.54 cm in men and women; thigh circumference, 44.6 cm and 37.2 cm in men and women; and handgrip strength, 23.3 kg and 16.5 kg in men and women). Using these cutoff values, the areas under the curve were 0.662 (95% CI, 0.576–0.738), 0.625 (95% CI, 0.545–0.699), and 0.701 (95% CI, 0.617–0.774), for quadriceps muscle thickness, thigh circumference, and handgrip strength, respectively. Quadriceps muscle thickness was a more precise predictor of fall injury than thigh circumference and had similar diagnostic performance as handgrip strength tests in dialysis patients. Conclusions Quadriceps muscle thickness can be measured easily at the bedside using ultrasonography and is a precise predictor of fall injury in patients undergoing maintenance hemodialysis.

Analysis of reasons for emergency department (ED) visits and resulting hospital admissions in breast cancer patients: A retrospective study from rural cancer center in Maine.

e18682 Background: Reducing ED visits in patients with cancer is cost saving and is particularly relevant during the COVID pandemic. Methods: We analyzed the number of ED visits occurred in our breast cancer population between July 1 2019 and August 31 2020 including demographics, stage distribution, treatment type within the month of ED visit, reason, time of the day, day of the week the visit occurred. Results: A total of 101 patients had 162 visits. 38 (38%) had more than 1 ED visit. Majority (36%) had stage 4 disease at the time of ED visit. The top 5 reasons for ED visits were fall and injury (N=30), GI (N=24), cardiac (N=17), respiratory symptoms (N=14) and cancer related pain (N=11). The median age in patients with ED visit due to fall injury/pain was 75 and non-fall injury/pain was 55 years. The most common reasons for chemotherapy induced ED visits were GI related (N=8) and Neutropenic fever (N=7). Cyclophosphamide/doxorubicin was the common regimen associated with neutropenic fever. A total of 72 (44%) visits resulted in hospital admissions. Most common symptom categories requiring hospital admissions were cardiac (82.3%), sepsis/cellulitis (81.8%), respiratory (64%), cancer related pain (54.5%) and GI (50%). Most were on endocrine therapy at the time of their visit (N= 59) and 31 were on no treatment at all. Falls were unrelated to disease or treatment and occurred in patients above age 70. Visits occurred during working hours from 6AM to 5PM, with peak incidence on Mondays and Fridays. Conclusions: Reducing ED visit in cancer patients is a worthwhile endeavor particularly in the context of the COVID pandemic. The main reason for ED visits were falls and injuries that were unrelated to disease or treatment in breast cancer patients. As a result, we are implementing systematic physical therapy assessment for our breast cancer population over age of 60 at our cancer center and call us first campaign, to get an opportunity to intervene prior to going to the ED as majority of the ED visits occurred during working hours.[Table: see text]

CYP2D6-inhibiting drugs and risk of fall injuries after newly initiated antidepressant and antipsychotic therapy in a Swedish, register-based case-crossover study

Drug-drug interactions have been shown to affect the risk of fall injuries when opioids are used concomitantly with drugs inhibiting the cytochrome P450 2D6 (CYP2D6) enzyme in a previous pharmacoepidemiological study. The aim of this study was to determine whether CYP2D6-inhibiting drugs reinforce the risk of fall injuries when used concomitantly with antidepressants or antipsychotics. We identified all 252,704 adults with a first fall injury leading to hospitalisation from the National Patient Register in Sweden 2006–2013. Data on dispensed drugs was linked from the Swedish Prescribed Drug Register. We applied a case-crossover design to analyse newly dispensed (28 days preceding the fall injury, preceded by a 12-week washout period) antidepressants and antipsychotics, respectively, in relation to risk of a fall injury and according to concomitant use of CYP2D6-inhibiting drugs. Newly dispensed drugs were assessed correspondingly in a control period of equal length, 28 days prior to the 12-week washout period. Overall, the risk of fall injury was increased after newly initiated antidepressant and antipsychotic treatment. For antidepressants, concomitant CYP2D6 inhibitor use further elevated the risk estimates compared to non-use, most pronounced for the groups selective serotonin reuptake inhibitors (sertraline excluded) [OR = 1.47 (95% CI 1.19–1.80) vs. OR = 1.19 (95% CI 1.13–1.26)], and tricyclic antidepressants [OR = 1.71 (95% CI 1.17–2.51) vs. 1.27 (95% CI 1.11–1.47)] as well as for sertraline [OR = 1.61 (95% CI 1.05–2.38) vs. 1.12 (95% CI 1.00–1.26)]. For antipsychotics, the risk of fall injury was not altered by concomitant use of CYP2D6-inhibiting drugs. In conclusion, concomitant use of CYP2D6 inhibiting drugs tends to further increase the risk of fall injury in newly initiated antidepressant treatment, but not in antipsychotic treatment.