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1.
BMC Public Health ; 24(1): 913, 2024 Mar 28.
Artículo en Inglés | MEDLINE | ID: mdl-38549075

RESUMEN

BACKGROUND: There is little research investigating the subjective experiences of parenting young children while living in poverty and experiencing financial strain using qualitative methodologies. Therefore, the objective of this study was to employ a qualitative approach to provide a nuanced and balanced view on the topic of parenting young children under financial strain in the Canadian context. METHODS: We conducted a qualitative study using semi-structured interviews between July and August 2021 in Kingston, Ontario, Canada. Sixteen participants aged 20-39 self-identified as living under financial strain while parenting a child aged 2-5 years. A qualitative inductive thematic analysis was undertaken with a focus on describing the contents of the data. RESULTS: Four major themes emerged from the data: experience of being a parent, impact of financial strain on the family unit, impact of financial strain on the children, and impact of financial strain on the parent. Numerous deleterious physical, mental, and material impacts on the family unit and parent were identified, however parent-perceived impacts of financial strain on their children were minimal. Parents described striking levels of resourcefulness and resiliency in providing the necessities for their families, absorbing the most significant impacts of financial strain through the phenomenon of self-sacrifice. CONCLUSION: The impacts of financial strain on families with young children are far reaching. Further research into the impacts of self-sacrifice on parents experiencing financial strain are needed to better understand this issue, and to inform social programming and resources that could help alleviate the deleterious impacts of poverty on parent mental, social, and physical health.


Asunto(s)
Estrés Financiero , Responsabilidad Parental , Niño , Humanos , Preescolar , Ontario , Padres , Investigación Cualitativa
2.
Artículo en Inglés | MEDLINE | ID: mdl-36709486

RESUMEN

BACKGROUND: Ventricular arrhythmia incidence in children and adolescents undergoing transcatheter pulmonary valve replacement (TPVR) within the native right ventricular outflow tract (nRVOT) is unknown. We sought to describe the incidence, severity, and duration of ventricular arrhythmias and identify associated risk factors in this population. METHODS: This was a retrospective cohort study of 78 patients <21 years of age who underwent TPVR within the nRVOT. Patients were excluded for pre-existing ventricular arrhythmia or antiarrhythmic use. Study variables included surgical history, valve replacement indication, valve type/size, and ventricular arrhythmia. Univariable logistic regression models were used to evaluate factors associated with ventricular arrhythmias, followed by subset analyses. RESULTS: Nonsustained ventricular arrhythmia occurred in 26/78 patients (33.3%). The median age at the procedure was 10.3 years (interquartle range [IQR]: 6.5, 12.8). Compared with other nRVOT types, surgical repair with transannular patch was protective against ventricular arrhythmia incidence: odds ratio (OR): 0.35 (95% confidence interval [CI], 0.13-0.95). Patient weight, valve type/size, number of prestents, and degree of stent extension into the RVOT were not associated with ventricular arrhythmia occurrence. Beta blocker was started in 16/26 (61.5%) patients with ventricular arrhythmia. One additional patient was lost to follow-up. The median beta blocker duration was 46 days (IQR 42, 102). Beta blocker was discontinued in 10 patients by 8-week follow-up and in the remaining four by 9 months. CONCLUSIONS: Though common after balloon-expandable TPVR within the nRVOT, ventricular arrhythmias were benign and transient. Antiarrhythmic medications were successfully discontinued in the majority at 6- to 8-week follow-up, and in all patients by 20 months.

3.
Am J Hematol ; 98(8): 1254-1264, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37334852

RESUMEN

Intensive chemotherapy with cytarabine and anthracycline (7&3) remains the standard therapy for patients medically fit for induction, but the assessment of fitness remains controversial. Venetoclax and hypomethylating agent (ven/HMA) combination therapy has improved outcomes in unfit patients but no prospective study has assessed ven/HMA versus 7&3 as initial therapy in older, fit patients. Given no studies and expectation of ven/HMA use in patients outside of trial criteria, we evaluated retrospective outcomes among newly diagnosed patients. A nationwide electronic health record (EHR)-derived database and the University of Pennsylvania EHR identified 312 patients receiving 7&3 and 488 receiving ven/HMA who were 60-75 years old without history of organ failure. Ven/HMA patients were older and more likely to have secondary AML, adverse cytogenetics, and adverse mutations. Median overall survival (OS) for patients receiving intensive chemotherapy was 22 versus 10 months for ven/HMA (HR 0.53, 95% CI 0.40-0.60). Controlling for measured baseline characteristic imbalances reduced survival advantage by half (HR 0.71, 95% CI 0.53-0.94). A sub-group of patients with equipoise, likelihood at least 30%-70% of receiving either treatment, had similar OS outcomes (HR 1.10, 95% CI 0.75-1.6). Regarding safety outcomes, 60-day mortality was higher for ven/HMA (15% vs. 6% at 60 days) despite higher documented infections and febrile neutropenia for 7&3. In this multicenter real-word dataset, patients selected for intensive chemotherapy had superior OS but a large group had similar outcomes with ven/HMA. Prospective randomized studies, controlling for both measured and unmeasured confounders, must confirm this outcome.


Asunto(s)
Citarabina , Leucemia Mieloide Aguda , Humanos , Anciano , Persona de Mediana Edad , Estudios Retrospectivos , Compuestos Bicíclicos Heterocíclicos con Puentes/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos
4.
J Oncol Pharm Pract ; : 10781552231189199, 2023 Aug 21.
Artículo en Inglés | MEDLINE | ID: mdl-37603585

RESUMEN

INTRODUCTION: Busulfan is a common component of allogeneic hematopoietic cell transplant (alloHCT) conditioning, however interpatient pharmacokinetic variability can result in enhanced toxicity or increased relapse risk. Therapeutic drug monitoring (TDM) can minimize variability, yet the optimal frequency of TDM is unknown. We compared outcomes for patients with one versus two sets of busulfan TDM during myeloablative conditioning (MAC) prior to alloHCT. METHODS: We analyzed the impact of busulfan TDM frequency and dose adjustments, with the primary outcome being relapse-free survival (RFS). Other outcomes included the incidence of acute and chronic graft versus host disease (GVHD), oral mucositis, pulmonary toxicity, sinusoidal obstruction syndrome (SOS), the cumulative incidence of relapse (CIR), and overall survival (OS). RESULTS: Twenty-two patients underwent one set of sampling while 53 patients underwent two sets. Similar baseline characteristics were observed between the groups. There were no significant differences observed in RFS by day +180 (77.3% vs. 79.2%, p = 1.0), CIR by day +180 (18.2% vs. 17.8%, p = 0.74), or OS (p = 0.73). The incidences of acute GVHD, chronic GVHD, SOS, and severe mucositis were also similar. In each group, 63% received busulfan dose adjustments after one set, with 52.8% receiving further dose adjustments following the second set. CONCLUSION: We observed no significant difference in alloHCT outcomes between patients who underwent one versus two sets of busulfan TDM sampling, suggesting that a single-time TDM and dose adjustment may be adequate to maximize outcomes after MAC alloHCT.

5.
Cardiol Young ; 33(11): 2282-2290, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36705001

RESUMEN

OBJECTIVES: To determine the safety and feasibility of over-expansion of right ventricle to pulmonary artery conduits during transcatheter pulmonary valve placement. BACKGROUND: Transcatheter pulmonary valve placement is an alternative to surgical pulmonary valve replacement. Traditionally, it was thought to be unsafe to expand a conduit to >110% of its original size. METHODS: This retrospective cohort study from two centers includes patients with right ventricle to pulmonary artery conduits with attempted transcatheter pulmonary valve placement from 2010 to 2017. Demographic, procedural, echocardiographic and follow-up data, and complications were evaluated in control and overdilation (to >110% original conduit size) groups. RESULTS: One hundred and seventy-two patients (51 overdilation and 121 control) had attempted transcatheter pulmonary valve placement (98% successful). The overdilation group was younger (11.2 versus 16.7 years, p < 0.001) with smaller conduits (15 versus 22 mm, p < 0.001); however, the final valve size was not significantly different (19.7 versus 20.2 mm, p = 0.2). Baseline peak echocardiographic gradient was no different (51.8 versus 55.6 mmHg, p = 0.3). Procedural complications were more frequent in overdilation (18%) than control (7%) groups (most successfully addressed during the procedure). One patient from each group required urgent surgical intervention, with no procedural mortality. Follow-up echocardiographic peak gradients were similar (24.1 versus 26 mmHg, p = 0.5). CONCLUSIONS: Over-expansion of right ventricle to pulmonary artery conduits during transcatheter pulmonary valve placement can be performed successfully. Procedural complications are more frequent with conduit overdilation, but there was no difference in the rate of life-threatening complications. There was no difference in valve function at most recent follow-up, and no difference in rate of reintervention. The long-term outcomes of transcatheter pulmonary valve placement with conduit over-expansion requires further study.


Asunto(s)
Implantación de Prótesis de Válvulas Cardíacas , Prótesis Valvulares Cardíacas , Válvula Pulmonar , Humanos , Válvula Pulmonar/cirugía , Implantación de Prótesis de Válvulas Cardíacas/efectos adversos , Implantación de Prótesis de Válvulas Cardíacas/métodos , Ventrículos Cardíacos/diagnóstico por imagen , Ventrículos Cardíacos/cirugía , Arteria Pulmonar/diagnóstico por imagen , Arteria Pulmonar/cirugía , Estudios Retrospectivos , Resultado del Tratamiento , Diseño de Prótesis , Cateterismo Cardíaco/métodos
6.
J Oncol Pharm Pract ; 28(7): 1609-1612, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-35642262

RESUMEN

INTRODUCTION: Hemorrhagic cystitis can commonly occur following an allogeneic hematopoietic cell transplant and treatment options are currently limited. Pentosan polysulfate, a heparin-like, sulfated polysaccharide, is used to relieve bladder pain and discomfort associated with interstitial cystitis. Initial reports in patients with hemorrhagic cystitis demonstrate that pentosan polysulfate may hasten hemorrhagic cystitis resolution and control symptoms. METHODS AND RESULTS: This report includes a retrospective case series of six patients who received pentosan polysulfate for the treatment of hemorrhagic cystitis following an allogeneic hematopoietic cell transplant. Pentosan polysulfate was initiated at a median of 4.5 days (range: 3-18) following hemorrhagic cystitis onset and continued for a median duration of 17.5 days (range: 7-64). Four patients were tested for BK virus and all were found to have BK viremia and viruria around the time of pentosan polysulfate initiation. The median number of red blood cell transfusions seemed to decrease in the patients initiated on pentosan polysulfate. All patients received a multi-agent treatment regimen, which included pentosan polysulfate, and half the patients had symptom resolution. The median time to symptom resolution from pentosan polysulfate initiation was 9 days (range: 7-10). CONCLUSION: Pentosan polysulfate was well-tolerated and seemed to assist with symptom resolution. Future studies are needed to confirm the impact of pentosan polysulfate on the treatment of hemorrhagic cystitis.


Asunto(s)
Cistitis Intersticial , Cistitis , Trasplante de Células Madre Hematopoyéticas , Cistitis/tratamiento farmacológico , Cistitis/etiología , Cistitis Intersticial/tratamiento farmacológico , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Hemorragia/inducido químicamente , Hemorragia/tratamiento farmacológico , Humanos , Poliéster Pentosan Sulfúrico/uso terapéutico , Estudios Retrospectivos
7.
J Oncol Pharm Pract ; 28(4): 892-897, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35191732

RESUMEN

INTRODUCTION: Granulocyte colony-stimulating factor (G-CSF) hastens neutrophil engraftment and reduces infections after allogeneic hematopoietic cell transplant (alloHCT), yet the optimal start date is unknown. Additionally, concurrent G-CSF and methotrexate for graft-vs-host disease (GVHD) prophylaxis may potentiate myelosuppression, and prolonged G-CSF is costly. Our institution changed from day + 4 to day + 12 G-CSF initiation following reduced intensity (RIC) alloHCT with methotrexate GVHD prophylaxis. METHODS: We retrospectively compared day + 4 and day + 12 G-CSF initiation after RIC alloHCT from 2017-2021. The primary endpoint was the time to neutrophil engraftment. Secondary endpoints included length of stay (LOS) and the time to platelet engraftment as well as the incidence of infectious events, acute GVHD (aGVHD), and mucositis. RESULTS: Thirty-two patients were included in each group with similar baseline characteristics. We observed faster neutrophil engraftment (median 12 vs. 15 days, p = 0.01) and platelet engraftment (median 13 vs. 15 days, p = 0.026) with day + 4 vs. day + 12 G-CSF initiation. Median LOS was 23 days (range, 19-32) with day + 4 initiation vs. 24 days (21-30) with day + 12 (p = 0.046). The incidence of culture-negative febrile neutropenia (p = 0.12), any grade aGVHD (p = 0.58), and grade 2-4 mucositis (p = 0.8) were similar between groups. CONCLUSION: Compared to day + 4, day + 12 G-CSF initiation following RIC alloHCT had a longer time to neutrophil and platelet engraftment. Day + 12 initiation also resulted in longer LOS, which while statistically significant, was potentially of limited clinical significance. These findings are hypothesis generating.


Asunto(s)
Enfermedad Injerto contra Huésped , Trasplante de Células Madre Hematopoyéticas , Mucositis , Trasplante de Médula Ósea/efectos adversos , Enfermedad Injerto contra Huésped/tratamiento farmacológico , Factor Estimulante de Colonias de Granulocitos/uso terapéutico , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Humanos , Metotrexato/uso terapéutico , Mucositis/tratamiento farmacológico , Estudios Retrospectivos , Trasplante Homólogo/efectos adversos , Trasplante Homólogo/métodos
8.
Proc Natl Acad Sci U S A ; 116(34): 16909-16914, 2019 08 20.
Artículo en Inglés | MEDLINE | ID: mdl-31383758

RESUMEN

Multiple lines of evidence suggest that plant water-use efficiency (WUE)-the ratio of carbon assimilation to water loss-has increased in recent decades. Although rising atmospheric CO2 has been proposed as the principal cause, the underlying physiological mechanisms are still being debated, and implications for the global water cycle remain uncertain. Here, we addressed this gap using 30-y tree ring records of carbon and oxygen isotope measurements and basal area increment from 12 species in 8 North American mature temperate forests. Our goal was to separate the contributions of enhanced photosynthesis and reduced stomatal conductance to WUE trends and to assess consistency between multiple commonly used methods for estimating WUE. Our results show that tree ring-derived estimates of increases in WUE are consistent with estimates from atmospheric measurements and predictions based on an optimal balancing of carbon gains and water costs, but are lower than those based on ecosystem-scale flux observations. Although both physiological mechanisms contributed to rising WUE, enhanced photosynthesis was widespread, while reductions in stomatal conductance were modest and restricted to species that experienced moisture limitations. This finding challenges the hypothesis that rising WUE in forests is primarily the result of widespread, CO2-induced reductions in stomatal conductance.


Asunto(s)
Carbono/metabolismo , Bosques , Modelos Biológicos , Fotosíntesis/fisiología , Estomas de Plantas/fisiología , Agua/metabolismo , Dióxido de Carbono/metabolismo , Estados Unidos
9.
BMC Med Educ ; 22(1): 167, 2022 Mar 11.
Artículo en Inglés | MEDLINE | ID: mdl-35272655

RESUMEN

BACKGROUND: Medical assistance in dying (MAID) became legal across Canada when Bill C-14 was passed in 2016. Currently, little is known about the most effective strategies for providing MAID education, and the importance of integrating MAID into existing curricula. In this study, a set of learning objectives (LOs) was developed to inform a foundational MAID curriculum in Canadian Family Medicine (FM) residency training programs. METHODS: Mixed methods were used to develop LOs based on a published needs assessment from a large, four-site family medicine residency program in southeastern Ontario. Draft LOs were evaluated and revised by faculty and resident leaders using a modified Delphi process and a focus group. LOs were mapped to the existing family medicine residency curriculum, as well as the College of Family Physicians of Canada's Priority Topics. RESULTS: Nine LOs were developed to provide a foundational education regarding MAID. While all LOs could be mapped to the Domains of Clinical Care within the departmental curriculum, they mapped inconsistently to departmental Entrustable Professional Activities and the Priority Topics. LOs focused on patient education and identification of patient goals were most readily mapped to existing curricular framework, while LOs with MAID-exclusive content revealed gaps in the current curriculum. CONCLUSIONS: The developed LOs provide a guide to ensure family medicine residents obtain generalist-level knowledge to counsel their patients about MAID. These LOs can serve as a model for developing LOs for both family medicine and specialist residency programs in Canada and in countries where MAID is legal.


Asunto(s)
Medicina Familiar y Comunitaria , Internado y Residencia , Curriculum , Medicina Familiar y Comunitaria/educación , Humanos , Asistencia Médica , Ontario
10.
Health Promot Pract ; 23(4): 609-618, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35043711

RESUMEN

Youth can transmit COVID-19 to adults, but few communication materials exist for engaging youth in COVID-19 prevention behaviors. We describe the process of leveraging a community-academic partnership in a rapid response initiative to engage youth in a contest (i.e., Youth-Led Creative Expression Contest to Prevent COVID-19 across Texas) to develop creative public health messaging centered on the prevention of COVID-19 transmission and infection for their peers. Core activities included developing a request for applications that solicited submission of creative expression materials promoting the use of COVID-19 prevention behaviors (mask-wearing, social distancing, handwashing, not touching the face) from Texas youth in elementary, middle, and/or high school; sending the request for applications to 48 organizations in Austin, Brownsville, Dallas, El Paso, Houston, and San Antonio in summer 2020; and recruiting a youth advisory board to score submissions and award prizes. We report on youth engagement in the COVID communication contest across Texas and use statistics (chi-square and t-tests) to characterize and compare youth participants and their creative expression artwork. The contest resulted in 3,003 website views and 34 submissions eligible for scoring. Each submission averaged >2 prevention behaviors. On average, winning submissions included a higher number of prevention behaviors than nonwinning submissions. The prevention behavior "not touching the face" was included more often in winning submissions than nonwinning submissions. Elementary school children were less likely to include a mask in their submission compared with older youth. Existing community-academic networks can engage youth in the development of geographically and age-tailored communication materials.


Asunto(s)
COVID-19 , Adolescente , Adulto , COVID-19/prevención & control , Niño , Comunicación , Desinfección de las Manos , Humanos , Salud Pública , Texas
11.
Int J Cancer ; 149(10): 1817-1827, 2021 11 15.
Artículo en Inglés | MEDLINE | ID: mdl-34289100

RESUMEN

Approximately one-third of estrogen receptor (ER) positive breast tumors fail to respond to or become resistant to hormonal therapy. Although the mechanisms responsible for hormone resistance are not completely understood, resistance is associated with alterations in ERα; overexpression of proteins that interact with the receptor; and hormone-independent activation of the receptor by growth factor signal transduction pathways. Our previous studies show that in estrogen dependent breast cancer cells, activation of the epidermal growth factor signaling pathway increases intracellular calcium which binds to and activates ERα through sites in the ligand-binding domain of the receptor and that treatment with extracellular calcium increases the concentration of intracellular calcium which activates ERα and induces hormone-independent cell growth. The present study asked whether overexpression of calcium channels contributes to the hormone-independent and -resistant phenotype of breast cancer cells and whether clinically used calcium channel blockers reverse hormone independence and resistance. The results show that hormone-independent and -resistant cells overexpress calcium channels, have high concentrations of intracellular calcium, overexpress estrogen responsive genes and, as expected, grow in the absence of estradiol and that treatment with calcium channel blockers decreased the concentration of intracellular calcium, the expression of estrogen responsive genes and cell growth. More importantly, in hormone-resistant cells, treatment that combined a calcium channel blocker with an antiestrogen reversed resistance to the antiestrogen.


Asunto(s)
Neoplasias de la Mama/genética , Calcio/metabolismo , Resistencia a Antineoplásicos/genética , Estradiol/farmacología , Regulación Neoplásica de la Expresión Génica/genética , Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/patología , Bloqueadores de los Canales de Calcio/farmacología , Canales de Calcio/genética , Canales de Calcio/metabolismo , Proliferación Celular/efectos de los fármacos , Proliferación Celular/genética , Resistencia a Antineoplásicos/efectos de los fármacos , Moduladores de los Receptores de Estrógeno/farmacología , Receptor alfa de Estrógeno/genética , Receptor alfa de Estrógeno/metabolismo , Estrógenos/farmacología , Femenino , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Humanos , Células MCF-7 , Receptores de Progesterona/genética , Receptores de Progesterona/metabolismo
12.
J Oncol Pharm Pract ; 27(3): 771-775, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32819196

RESUMEN

INTRODUCTION: Crystalline arthritis (CA), characterized by acute joint pain and erythema secondary to calcium pyrophosphate deposition (CPPD, or pseudogout) or monosodium urate crystals (gout), is a potentially underreported complication following allogeneic hematopoietic cell transplant (alloHCT). Graft-versus-host disease prophylaxis with calcineurin inhibitors (CNIs) causes hypomagnesemia and hyperuricemia, resulting in CA. CA related to tacrolimus has yet to be characterized following alloHCT. CASE REPORT: We retrospectively reviewed records of 450 consecutive patients undergoing alloHCT and identified 15 (3.3% incidence) who developed CA on tacrolimus. Large joints were involved in 10 (66.7%) patients, all patients had recent hypomagnesemia, and no patient had hyperuricemia, suggesting CPPD was the most likely etiology.Management and outcome: Eleven (73.3%) patients received systemic corticosteroids; 6 as initial therapy and 5 added to or substituted for colchicine in the setting of slow or inadequate response. The median duration of corticosteroid therapy was 6 days, however 2 patients (13.3%) required prolonged maintenance due to recurrence. Eleven (73.3%) patients received colchicine; 9 as initial therapy and 2 added to or substituted for corticosteroids in the setting of slow or inadequate response. The median duration of colchicine therapy was 18 days. The median time to symptom resolution was 21 days. DISCUSSION: Patients on tacrolimus following alloHCT presenting with acute joint pain and erythema should be evaluated for CPPD. Hypomagnesemia secondary to CNIs is likely the precipitating factor for CPPD in this population. Patients can effectively be managed with systemic corticosteroids and/or colchicine, however prolonged duration of treatment and even maintenance may be necessary. Based on the Naranjo Algorithm, CPPD secondary to tacrolimus induced hypomagnesemia is a possible adverse drug event, with a score of 3-4.


Asunto(s)
Condrocalcinosis/inducido químicamente , Condrocalcinosis/diagnóstico , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Trasplante de Células Madre Hematopoyéticas/tendencias , Inmunosupresores/efectos adversos , Tacrolimus/efectos adversos , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Trasplante Homólogo
13.
BMC Fam Pract ; 22(1): 14, 2021 01 09.
Artículo en Inglés | MEDLINE | ID: mdl-33422014

RESUMEN

BACKGROUND: Primary care providers (PCPs) are typically the primary contact for patients with obesity seeking medical and surgical weight loss interventions; however, previous studies suggest that fewer than 7% of eligible adult patients are referred to publically funded medical and surgical weight loss interventions (MSWLI). METHODS: We performed an anonymous survey study between October 2017 and June 2018 to explore the knowledge, experiences, perceptions, and educational needs of PCPs in Southeastern Ontario in managing patients with class II and III obesity. RESULTS: Surveys were distributed to 591 PCPs (n = 538 family physicians; n = 53 nurse practitioners) identified as practicing in the Southeastern Ontario and 92 (15.6%) participated. PCPs serving a rural population estimated that 14.2 ± 10.9% of patients would qualify for MSWLI compared to 9.9 ± 8.5% of patients of PCPs serving an urban population (p = .049). Overall, 57.5% of respondents did not feel competent prescribing MSWLI to patients with class II/III obesity, while 69.8% stated they had 'good' knowledge of the referral criteria for MSWLI. 22.2% of respondents were hesitant to refer patients for bariatric surgery (BS) due to concerns about postoperative surgical complications and risks associated with surgery. Only 25% of respondents were comfortable providing long-term follow up after BS, and only 39.1% had participated in continuing education on management of patients with class II/III obesity in the past 5 years. CONCLUSION: The majority of PCPs believe there is a need for additional education about MSWLI for patients with class II/III obesity. Future studies are needed to develop and compare the effectiveness of additional education and professional development around risks of contemporary BS, indications to consider referral for MSWLI, management and long-term follow-up of patients after BS.


Asunto(s)
Médicos de Atención Primaria , Adulto , Humanos , Obesidad/epidemiología , Obesidad/terapia , Ontario/epidemiología , Percepción , Atención Primaria de Salud , Encuestas y Cuestionarios
14.
Cardiol Young ; 31(2): 229-232, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33153502

RESUMEN

BACKGROUND: A 10% prevalence of intracranial aneurysms in patients with coarctation of the aorta has been described in a few studies. Our objective is to describe the rate of intracranial aneurysm detection in patients with coarctation of the aorta in the current era. We hypothesise that, with earlier detection and coarctation of the aorta intervention, the rate of intracranial aneurysm is lower than previously reported and screening imaging may only be warranted in older patients or patients with certain risk factors. METHODS: This is a retrospective study of 102 patients aged 13 years and older with coarctation who underwent brain computed tomography angiography, magnetic resonance imaging (MRI), or magnetic resonance angiography between January, 2000 and February, 2018. RESULTS: The median age of coarctation repair was 4.4 months (2 days-47 years) and the initial repair was primarily surgical (90.2%). There were 11 former smokers, 4 current smokers, and 13 patients with ongoing hypertension. Imaging modalities included computed tomography angiography (13.7%), MRI (41.2%), and magnetic resonance angiography (46.1%), performed at a median age of 33.3 years, 22.4 years, and 25 years, respectively. There were 42 studies performed for screening, 48 studies performed for neurologic symptoms, and 12 studies performed for both screening and symptoms. There were no intracranial aneurysms detected in this study. CONCLUSIONS: These results suggest that the rate of intracranial aneurysms may be lower than previously reported and larger studies should explore the risk of intracranial aneurysms in coarctation of the aorta in the current era.


Asunto(s)
Coartación Aórtica , Aneurisma Intracraneal , Adulto , Anciano , Aorta , Coartación Aórtica/diagnóstico por imagen , Coartación Aórtica/epidemiología , Humanos , Aneurisma Intracraneal/diagnóstico por imagen , Aneurisma Intracraneal/epidemiología , Prevalencia , Estudios Retrospectivos
15.
Carcinogenesis ; 41(7): 1005-1014, 2020 07 14.
Artículo en Inglés | MEDLINE | ID: mdl-31646340

RESUMEN

Previous studies demonstrate that the heavy metal cadmium and the metalloid arsenite activate estrogen receptor-alpha in breast cancer cells by forming a high-affinity complex with the ligand-binding domain of the receptor and that environmentally relevant doses of cadmium have estrogen-like activity in vivo. The present study showed that in estrogen-receptor positive cells, arsenite and cadmium increased the global expression of estrogen-responsive genes and that an environmentally relevant dose of arsenite also had estrogen-like activity in vivo. Similar to estrogens, exposure of ovariectomized animals to arsenite induced the expression of the progesterone receptor, GREB1, and c-fos in the mammary gland and the expression of complement C3, c-fos, and cyclin D1 in the uterus and the increase was blocked by the antiestrogen ICI-182,780. When virgin female animals were fed a diet, that mimics exposure to either arsenite or cadmium, and challenged with the chemical carcinogen dimethylbenzanthracene, there was an increase in the incidence of mammary tumors and a decrease in the time to tumor onset, but no difference in the total number of tumors, tumor multiplicity, or total tumor volume. Together with published results, these data showed that environmentally relevant amounts of arsenite and cadmium had estrogen-like activity in vivo and promoted mammary tumorigenesis.


Asunto(s)
Arsenitos/toxicidad , Cadmio/toxicidad , Estrógenos/genética , Neoplasias Mamarias Animales/genética , Animales , Benzo(a)Antracenos/toxicidad , Carcinógenos/toxicidad , Ciclina D1/genética , Receptor alfa de Estrógeno/genética , Estrógenos/metabolismo , Femenino , Humanos , Células MCF-7 , Glándulas Mamarias Humanas/efectos de los fármacos , Glándulas Mamarias Humanas/patología , Neoplasias Mamarias Animales/inducido químicamente , Neoplasias Mamarias Animales/patología , Proteínas de Neoplasias/genética , Proteínas Proto-Oncogénicas c-fos/genética , Ratas , Receptores de Progesterona/genética
16.
Am J Hematol ; 95(7): 792-798, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32242967

RESUMEN

Invasive fungal infections (IFI) are a significant source of morbidity and mortality for patients with acute myeloid leukemia (AML) and myelodysplastic syndromes (MDS). Given the heterogeneity of the population receiving hypomethylating agents (HMA), it is difficult for clinicians to accurately assess their patients' risk of infection. Literature on the incidence of IFI following HMA is limited to several studies of azacitidine. The primary objective of this retrospective study was to establish the incidence of IFI in HMA treated AML/MDS patients at a large U.S. comprehensive cancer center. Secondary objectives included comparing incidence of IFI among pre-specified subgroups to identify potential risk factors for IFI. Two hundred three patients with AML, intermediate to very high risk MDS or chronic myelomonocytic leukemia who received at least two cycles of HMA were included. The incidence of IFI, as defined by the European Organization for Research and Treatment of Cancer / Invasive Fungal Infections Cooperative Group criteria, was 9.6%, with 20 IFI diagnosed following HMA (three proven, four probable, 13 possible). Among the proven cases of IFI, molds included Scedosporium and Fusarium spp. Eleven patients who developed IFIs were neutropenic upon initiating HMA. The majority (17/20) of infections occurred during the first four cycles. Given this incidence, mold-active prophylaxis can be considered in patients who are neutropenic at the start of therapy.


Asunto(s)
Antineoplásicos/efectos adversos , Fusariosis , Fusarium , Infecciones Fúngicas Invasoras , Leucemia Mieloide Aguda , Síndromes Mielodisplásicos , Scedosporium , Anciano , Antineoplásicos/administración & dosificación , Femenino , Fusariosis/inducido químicamente , Fusariosis/epidemiología , Fusariosis/prevención & control , Humanos , Incidencia , Infecciones Fúngicas Invasoras/inducido químicamente , Infecciones Fúngicas Invasoras/epidemiología , Infecciones Fúngicas Invasoras/prevención & control , Leucemia Mieloide Aguda/tratamiento farmacológico , Leucemia Mieloide Aguda/epidemiología , Masculino , Persona de Mediana Edad , Síndromes Mielodisplásicos/tratamiento farmacológico , Síndromes Mielodisplásicos/epidemiología , Estudios Retrospectivos , Factores de Riesgo
17.
BMC Fam Pract ; 21(1): 136, 2020 07 09.
Artículo en Inglés | MEDLINE | ID: mdl-32646380

RESUMEN

BACKGROUND: As part of a broader study to improve the capacity for advance care planning (ACP) in primary healthcare settings, the research team set out to develop and validate a computerized algorithm to help primary care physicians identify individuals at risk of death, and also carried out focus groups and interviews with relevant stakeholder groups. Interviews with patients and family caregivers were carried out in parallel to algorithm development and validation to examine (1) views on early identification of individuals at risk of deteriorating health or dying; (2) views on the use of a computerized algorithm for early identification; and (3) preferences and challenges for ACP. METHODS: Fourteen participants were recruited from two Canadian provinces. Participants included individuals aged 65 and older with declining health and self-identified caregivers of individuals aged 65 and older with declining health. Semi-structured interviews were conducted via telephone. A qualitative descriptive analytic approach was employed, which focused on summarizing and describing the informational contents of the data. RESULTS: Participants supported the early identification of patients at risk of deteriorating health or dying. Early identification was viewed as conducive to planning not only for death, but for the remainder of life. Participants were also supportive of the use of a computerized algorithm to assist with early identification, although limitations were recognized. While participants felt that having family physicians assume responsibility for early identification and ACP was appropriate, questions arose around feasibility, including whether family physicians have sufficient time for ACP. Preferences related to the content of and approach to ACP discussions were highly individualized. Required supports during ACP include informational and emotional supports. CONCLUSIONS: This work supports the role of primary care providers in the early identification of individuals at risk of deteriorating health or death and the process of ACP. To improve ACP capacity in primary healthcare settings, compensation systems for primary care providers should be adjusted to ensure appropriate compensation and to accommodate longer ACP appointments. Additional resources and more established links to community organizations and services will also be required to facilitate referrals to relevant community services as part of the ACP process.


Asunto(s)
Planificación Anticipada de Atención/organización & administración , Cuidadores/psicología , Deterioro Clínico , Diagnóstico Precoz , Médicos de Atención Primaria , Cuidado Terminal , Enfermo Terminal , Anciano , Algoritmos , Canadá , Femenino , Humanos , Masculino , Evaluación de Necesidades , Prioridad del Paciente , Médicos de Atención Primaria/organización & administración , Médicos de Atención Primaria/normas , Mejoramiento de la Calidad/organización & administración , Medición de Riesgo/métodos , Cuidado Terminal/métodos , Cuidado Terminal/psicología , Enfermo Terminal/psicología , Enfermo Terminal/estadística & datos numéricos
18.
BMC Fam Pract ; 21(1): 16, 2020 Jan 27.
Artículo en Inglés | MEDLINE | ID: mdl-31987029

RESUMEN

Following publication of the original article [1], the authors opted to correct the name of co-author Amra Zalihic from Zahilic to Zalihic. The original article has been corrected.

19.
BMC Fam Pract ; 21(1): 7, 2020 01 13.
Artículo en Inglés | MEDLINE | ID: mdl-31931726

RESUMEN

BACKGROUND: The wars that ravaged the former Socialist Federal Republic of Yugoslavia in the 1990's resulted in the near destruction of the healthcare system, including education of medical students and the training of specialist physicians. In the latter stages of the war, inspired by Family Medicine programs in countries such as Canada, plans to rebuild a new system founded on a strong primary care model emerged. Over the next fifteen years, the Queen's University Family Medicine Development Program in Bosnia and Herzegovina played an instrumental role in rebuilding the primary care system through educational initiatives at the undergraduate, residency, Masters, PhD, and continuing professional development levels. Changes were supported by new laws and regulations to insure sustainability. This study revisited Bosnia and Herzegovina (B-H) 8-years after the end of the program to explore the impact of initiatives through understanding the perspectives and experiences of individuals at all levels of the primary care system from students, deans of medical schools, Family Medicine residents, practicing physicians, Health Center Directors and Association Leaders. METHODS: Qualitative exploratory design using purposeful sampling. Semi-structured interviews and focus groups with key informants were conducted in English or with an interpreter as needed and audiotaped. Transcripts and field notes were analyzed using an interpretative phenomenological approach to identify major themes and subthemes. RESULTS: Overall, 118 participants were interviewed. Three major themes and 9 subthemes were identified including (1) The Development of Family Medicine Education, (subthemes: establishment of departments of family medicine, undergraduate medical curriculum change), (2) Family Medicine as a Discipline (Family Medicine specialization, academic development, and Family Medicine Associations), and (3) Health Care System Issues (continuity of care, comprehensiveness of care, practice organization and health human resources). CONCLUSIONS: Despite the impact of years of war and the challenges of a complex and unstable postwar environment, initiatives introduced by the Queen's Program succeeded in establishing sustainable changes, allowing Family Medicine in B-H to continue to adapt without abandoning its strong foundations. Despite the success of the program, the undervaluing of Primary Care from a human resource and health finance perspective presents ongoing threats to the system.


Asunto(s)
Medicina Familiar y Comunitaria/organización & administración , Atención Primaria de Salud/organización & administración , Desarrollo de Programa , Conflictos Armados , Bosnia y Herzegovina , Curriculum , Atención a la Salud , Educación de Postgrado en Medicina , Educación de Pregrado en Medicina , Docentes Médicos , Medicina Familiar y Comunitaria/educación , Grupos Focales , Humanos , Internado y Residencia , Médicos de Familia , Investigación Cualitativa , Estudiantes de Medicina
20.
J Strength Cond Res ; 34(4): 924-928, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-31913252

RESUMEN

Williams, TD, Martin, MP, Mintz, JA, Rogers, RR, and Ballmann, CG. Effect of acute beetroot juice supplementation on bench press power, velocity, and repetition volume. J Strength Cond Res 34(4): 924-928, 2020-The purpose of this study was to examine the effects of acute beetroot juice (BRJ) supplementation on power, velocity, and repetitions to failure (RTF) during bench press exercise. Resistance-trained male subjects (n = 11) were recruited for this study. Using a double-blinded, counterbalanced, crossover study design, subjects were supplemented with either 70 ml of BRJ or placebo (PL; black currant juice) 2 hours before exercise. During each exercise trial, subjects began by completing 2 sets × 2 repetitions of bench press at 70% 1 repetition maximum (1RM) with maximum explosive intent. Barbell velocity and power were measured using a linear position transducer. Subjects then completed 3 sets × RTF at 70% 1RM separated by 2 minutes of rest between each set. Maximum mean power, velocity, and repetitions were analyzed. Mean velocity (p = 0.011; effect size [ES] = 0.54) and mean power (p = 0.015; ES = 0.51) were significantly higher with BRJ when compared with PL. Total RTF (p = 0.002; ES = 0.46) was higher during the BRJ condition vs. PL. Results indicate that acute BRJ supplementation positively impacts velocity, power, and total repetitions during free-weight bench press exercise.


Asunto(s)
Beta vulgaris , Suplementos Dietéticos , Fuerza Muscular/efectos de los fármacos , Músculo Esquelético/efectos de los fármacos , Levantamiento de Peso/fisiología , Adulto , Estudios Cruzados , Método Doble Ciego , Humanos , Masculino , Entrenamiento de Fuerza/métodos , Descanso , Adulto Joven
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