16 research outputs found
Complementary and alternative medicine in oncology nursing
Use of complementary and alternative medicine (CAM) has increased globally, particularly among oncology patients. This study investigated the knowledge, experience and attitudes of oncology nurses towards CAM. A quantitative study was conducted in tertiary care hospitals in Karachi, Pakistan, where 132 oncology nurses were surveyed. The survey revealed that more than 50% of nurses had never heard about many of the CAM therapies used in Pakistan. Approximately 65% of the nurses had knowledge about prayer and less than 30% had experience of CAM education or training. In addition, the majority of nurses had seen patients using CAM and felt that their health status could be enhanced with the use of CAM. This study showed that oncology nurses had a positive experience of and attitude towards CAM, although they needed to enhance their knowledge of it to maximise patient satisfaction and quality of care
Development and validation of a rapid visual technique for left ventricular hypertrophy detection from the electrocardiogram
IntroductionLeft ventricular hypertrophy (LVH) detection techniques on by electrocardiogram (ECG) are cumbersome to remember with modest performance. This study validated a rapid technique for LVH detection and measured its performance against other techniques.MethodsThis was a retrospective cohort study of patients at Stanford Health Care who received ECGs and resting transthoracic echocardiograms (TTE) from 2006 through 2018. The novel technique, Witteles-Somani (WS), assesses for S- and R-wave overlap on adjacent precordial leads. The WS, Sokolow-Lyon, Cornell, and Peguero-Lo Presti techniques were algorithmically implemented on ECGs. Classification metrics, receiver-operator curves, and Pearson correlations measured performance. Age- and sex-adjusted Cox proportional hazard models evaluated associations between incident cardiovascular outcomes and each technique.ResultsA total of 53,333 ECG-TTE pairs from 18,873 patients were identified. Of all ECG-TTE pairs, 21,638 (40.6%) had TTE-diagnosed LVH. The WS technique had a sensitivity of 0.46, specificity of 0.66, and AUROC of 0.56, compared to Sokolow-Lyon (AUROC 0.55), Cornell (AUROC 0.63), and Peguero-Lo Presti (AUROC 0.63). Patients meeting LVH by WS technique had a higher risk of cardiovascular mortality [HR 1.18, 95% CI (1.12, 1.24), P < 0.001] and a higher risk of developing any cardiovascular disease [HR 1.29, 95% CI (1.22, 1.36), P < 0.001], myocardial infarction [HR 1.60, 95% CI (1.44, 1.78), P < 0.005], and heart failure [HR 1.24, 95% CI (1.17, 1.32), P < 0.001].ConclusionsThe WS criteria is a rapid visual technique for LVH detection with performance like other LVH detection techniques and is associated with incident cardiovascular outcomes
Health Equity in Artificial Intelligence and Primary Care Research: A Scoping Review
The purpose of this scoping review is to summarize what is known from the literature on how artificial intelligence research in primary care is conducted from an health equity perspective
Role of pelvicalyceal anatomy in the outcomes of retrograde intrarenal surgery (RIRS) for lower pole stones: outcomes with a systematic review of literature
Controversies exist on the influence of lower pole anatomy (infundibular pelvic angle, IPA; infundibular length, IL; and infundibular width, IW) for success and outcomes related to the treatment of stones in the lower pole. We wanted to look at the role of lower pole anatomy to study clinical outcomes in patients treated for isolated lower pole stones (LPS) using retrograde intra renal surgery (RIRS), and also perform a review to look at the published literature on the influence of pelvicalyceal anatomy on success with RIRS. Data were prospectively collected (June 2013-June 2016) for all patients who underwent RIRS for LPS, and the imaging was then retrospectively reviewed to calculate the IPA, IL and IW using the Elbahnasy method. A systematic review was also conducted for all English language articles between January 2000 and April 2018, reporting on the impact of pelvicaliceal anatomy on RIRS. A total of 108 patients with LPS were included with a male to female ratio of 2:3 and a mean age of 54.7 years. The mean lower pole stone size was 9.3 mm (range 3-29 mm) and 102/108 (94.4%) patients were stone free (SF) at the end of their procedure. While steep IPA (< 30°), operative time duration and larger stone size were significant predictors of failure, the placement of ureteric access sheath, IW and IL did not influence treatment outcomes. Six studies (460 patients) met the inclusion criteria for our review. The IPA, IW, IL for failure ranged from 26° to 38°, 5.5-7 mm and 24-34 mm, respectively. The SFR ranged from 78 to 88% with a metaanalysis showing IPA as the most important predictor of treatment outcomes for LPS. Infundibular pelvic angle seems to be the most important predictor for the treatment of LPS using RIRS. Pelvicalyceal anatomy in conjunction with stone size and hardness seem to dictate the success, and decisions on the type of surgical interventions should reflect this.</p
Health Equity in Artificial Intelligence and Primary Care Research: Protocol for a Scoping Review
BackgroundThough artificial intelligence (AI) has the potential to augment the patient-physician relationship in primary care, bias in intelligent health care systems has the potential to differentially impact vulnerable patient populations.
ObjectiveThe purpose of this scoping review is to summarize the extent to which AI systems in primary care examine the inherent bias toward or against vulnerable populations and appraise how these systems have mitigated the impact of such biases during their development.
MethodsWe will conduct a search update from an existing scoping review to identify studies on AI and primary care in the following databases: Medline-OVID, Embase, CINAHL, Cochrane Library, Web of Science, Scopus, IEEE Xplore, ACM Digital Library, MathSciNet, AAAI, and arXiv. Two screeners will independently review all abstracts, titles, and full-text articles. The team will extract data using a structured data extraction form and synthesize the results in accordance with PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews) guidelines.
ResultsThis review will provide an assessment of the current state of health care equity within AI for primary care. Specifically, we will identify the degree to which vulnerable patients have been included, assess how bias is interpreted and documented, and understand the extent to which harmful biases are addressed. As of October 2020, the scoping review is in the title- and abstract-screening stage. The results are expected to be submitted for publication in fall 2021.
ConclusionsAI applications in primary care are becoming an increasingly common tool in health care delivery and in preventative care efforts for underserved populations. This scoping review would potentially show the extent to which studies on AI in primary care employ a health equity lens and take steps to mitigate bias.
International Registered Report Identifier (IRRID)PRR1-10.2196/2779
Segmenting computed tomograms for cardiac ablation using machine learning leveraged by domain knowledge encoding
[EN] Background: Segmentation of computed tomography (CT) is important for many
clinical procedures including personalized cardiac ablation for the management of
cardiac arrhythmias. While segmentation can be automated by machine learning
(ML), it is limited by the need for large, labeled training data that may be difficult
to obtain. We set out to combine ML of cardiac CT with domain knowledge,
which reduces the need for large training datasets by encoding cardiac
geometry, which we then tested in independent datasets and in a prospective
study of atrial fibrillation (AF) ablation.
Methods: We mathematically represented atrial anatomy with simple geometric
shapes and derived a model to parse cardiac structures in a small set of N=6
digital hearts. The model, termed ¿virtual dissection,¿ was used to train ML to
segment cardiac CT in N = 20 patients, then tested in independent datasets and
in a prospective study.
Results: In independent test cohorts (N = 160) from 2 Institutions with different CT
scanners, atrial structures were accurately segmented with Dice scores of 96.7% in
internal (IQR: 95.3%¿97.7%) and 93.5% in external (IQR: 91.9%¿94.7%) test data,
with good agreement with experts (r = 0.99; p < 0.0001). In a prospective study
of 42 patients at ablation, this approach reduced segmentation time by 85%
(2.3 ± 0.8 vs. 15.0 ± 6.9 min, p < 0.0001), yet provided similar Dice scores to
experts (93.9% (IQR: 93.0%¿94.6%) vs. 94.4% (IQR: 92.8%¿95.7%), p = NS).
Conclusions: Encoding cardiac geometry using mathematical models greatly
accelerated training of ML to segment CT, reducing the need for large training
sets while retaining accuracy in independent test data. Combining ML with
domain knowledge may have broad applications.Research reported in this publication was supported by grants from the National Institutes of Health under award numbers R01 HL149134 and R01 HL83359.Feng, R.; Deb, B.; Ganesan, P.; Tjong, FV..; Rogers, AJ.; Ruiperez-Campillo, S.; Somani, S.... (2023). Segmenting computed tomograms for cardiac ablation using machine learning leveraged by domain knowledge encoding. Frontiers in Cardiovascular Medicine. 10. https://doi.org/10.3389/fcvm.2023.11892931
Role of endoscopic management in synthetic sling/mesh erosion following previous incontinence surgery : a systematic review from European Association of Urologists Young Academic Urologists (YAU) and Uro-technology (ESUT) groups
Introduction and hypothesis Foreign body (FB) erosion is now recognized as a major long-term complication following previous incontinence surgery. The aim of our systematic review was to ascertain the outcomes of endoscopic management in synthetic sling/mesh erosion following previous gynaecological surgery. Methods A systematic review in line with PRISMA and Cochrane guidelines was conducted for all English language articles between 1996 and December 2018 for all articles reporting on endoscopic surgical management for eroded FB following previous sling/mesh procedure for incontinence. Results Our search produced 931 articles of which 20 articles (198 patients) were included in our review; 149 (75%) had tension-free vaginal tapes (TVT) or tension-free obturator tapes (TOT) as their initial procedure. The site of mesh erosion was the bladder in 134 patients (68%) of which 12 (6%) were in the bladder neck. Urethral mesh erosion was seen in 63 patients (32%) across all studies. The treatment of eroded mesh was by laser and endoscopic excision using an electrode loop or laparoscopic scissors in 108 (55%) and 90 (45%) patients respectively. The initial/final success rate with laser and endoscopic excision was 67%/92% and 80%/98% respectively. The overall complication rates were 24% and 28% in laser and endoscopic groups respectively of which 21% in each group were stress urinary incontinence. Conclusions Endoscopic management of FB erosion is an effective minimally invasive technique with good outcomes and minimal morbidity. Management with the use of holmium laser is gaining momentum and could be attempted before open surgical removal. There is a need for comparative data between open surgical excision and endoscopic excision to help better describe the patient's most likely to benefit from the endoscopic technique