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Temporary transvenous pacing guided by the combined use of ultrasound and intracavitary electrocardiography: a feasible and safe technique.

ABSTRACT: Temporary transvenous pacing is a crucial procedure in emergency and critical care medicine. While fluoroscopy guidance is considered the gold-standard to place the temporary pacing electrode catheter (EC), its use is usually limited by equipment availability and time. By contrast, ultrasound (US) guidance is a useful alternative, since it is widely available at the bedside, does not emit ionizing radiation and provides optimal times to active pacing with fewer complications. However, many times, in spite of visualizing the EC in the right ventricle using US, the pacing capture and sensing are not optimal, and thus, having an easily applicable method for best assessing this issue is desirable, especially if it could be combined with US without difficulties. With the purpose of illustrating the points made previously, the combined US-intracavitary electrocardiography technique is described in detail in this paper.

SUBMITTER: Blanco P

PROVIDER: S-EPMC6638614 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature

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Temporary transvenous pacing guided by the combined use of ultrasound and intracavitary electrocardiography: a feasible and safe technique.

Blanco Pablo P

The ultrasound journal 20190404 1

Temporary transvenous pacing is a crucial procedure in emergency and critical care medicine. While fluoroscopy guidance is considered the gold-standard to place the temporary pacing electrode catheter (EC), its use is usually limited by equipment availability and time. By contrast, ultrasound (US) guidance is a useful alternative, since it is widely available at the bedside, does not emit ionizing radiation and provides optimal times to active pacing with fewer complications. However, many times ...[more]

PMID: 31359249

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Project description:ObjectivesTemporary transvenous cardiac pacing (TVP) is a potentially lifesaving intervention included in the list of essential core procedures for emergency medicine (EM) training; however, opportunities to perform TVP during residency cannot be guaranteed. EM graduates report feeling subjectively underprepared for this procedure, but objective performance data are lacking. Checklist-based simulated assessment is an increasing focus of competency-based medical education, particularly for invasive procedures like TVP. The objectives of this paper were as follows: first, to enlist a multidisciplinary team of experts to create an assessment tool for TVP using best practices in checklist development; second, to determine the reliability of checklist scoring; and third, to assess EM residents' baseline ability to perform TVP using a dedicated task trainer.MethodsThis study was conducted at a single 4-year EM residency. A panel of emergency physicians and cardiologists designed a TVP checklist using a modified Delphi approach. After consensus was achieved on a final checklist, EM residents were assessed using a dedicated TVP task trainer. Inter-rater reliability was determined using Cohen's kappa coefficient. Resident performance was determined by number of correctly performed checklist items.ResultsThe expert panel achieved consensus on a 30-item checklist after three rounds of revisions. The Cohen's kappa coefficient for the overall checklist score was 0.87, with individual checklist items ranging from 0.63 to 1.00. In total, 58 residents were assessed with a mean score of 13.5 of 30 checklist items. Scores increased with each year of training.ConclusionsThis study details the rigorous development of a TVP checklist designed by a multidisciplinary team of experts. Checklist scores demonstrated strong inter-rater reliability. The overall poor performance of this cohort suggests the current approach to TVP training does not provide sufficient preparation for EM residents. Competency-based techniques, such as simulation-based mastery learning, should be explored.

Project description:BackgroundMechanical ventilation (MV) is a life-saving technology that restores or assists breathing. Like any treatment, MV has side effects. In some patients it can cause diaphragmatic atrophy, injury, and dysfunction (ventilator-induced diaphragmatic dysfunction, VIDD). Accumulating evidence suggests that VIDD makes weaning from MV difficult, which involves increased morbidity and mortality.Methods and analysisThis paper describes the protocol of a randomized, controlled, open-label, multicenter trial that is designed to investigate the safety and effectiveness of a novel therapy, temporary transvenous diaphragm pacing (TTVDP), to improve weaning from MV in up to 88 mechanically ventilated adult patients who have failed at least two spontaneous breathing trials over at least 7 days. Patients will be randomized (1:1) to TTVDP (treatment) or standard of care (control) groups. The primary efficacy endpoint is time to successful extubation with no reintubation within 48 h. Secondary endpoints include maximal inspiratory pressure and ultrasound-measured changes in diaphragm thickness and diaphragm thickening fraction over time. In addition, observational data will be collected and analyzed, including 30-day mortality and time to discharge from the intensive care unit and from the hospital. The hypothesis to be tested postulates that more TTVDP patients than control patients will be successfully weaned from MV within the 30 days following randomization.DiscussionThis study is the first large-scale clinical trial of a novel technology (TTVDP) aimed at accelerating difficult weaning from MV. The technology tested provides the first therapy directed specifically at VIDD, an important cause of delayed weaning from MV. Its results will help delineate the place of this therapeutic approach in clinical practice and help design future studies aimed at defining the indications and benefits of TTVDP.Trial registrationClinicalTrials.gov, NCT03096639 . Registered on 30 March 2017.

Project description:BackgroundTemporary cardiac pacemaker implantation (PM) via the femoral and subclavian veins is widely used in clinics to treat patients with severe bradycardia or tachycardia, but it is technically challenging and potentially associated with various complications.HypothesisThis study investigated the feasibility and safety of a novel method of PM implantation via the median cubital vein.MethodsA total of 279 patients of the First Affiliated Hospital of Xiamen University between March 2020 and December 2021 who required no-emergency PM implantation were enrolled. The patients were divided into three groups based on the temporary PM implantation routes: F-control (n = 107), via the femoral vein; S-control (n = 67), via the subclavian vein, and N-group (n = 105), via the median cubital vein. The sheath placement time (SPT), electrode placement time (EPT), electrode arrival rate (EAR), rate of sensing and pacing (RSP), radiation quantity (RD), electrode dislocation rate (EDR) and average electrode retention time (AERT) were recorded and evaluated. In addition, the Hamilton Anxiety Scale (HAMA) and Self-Rating Depression Scale (SDS) were used to evaluate the comfort levels of patients in the three groups.ResultsThere were no significant differences between the groups with regard to age, EAR, RSP, EPT, RD, and AERT (p > 0.05). However, the N-group had significantly lower SPT than the F-control and S-control groups (67.0 ± 22.0 s vs. 321.7 ± 122.2 s and 307.3 ± 128.5 s, p = 0.000). Additionally, the F-control had significantly higher EDR than the S-control group and the N-group (11 (10.3%) vs. 2 (3.0%) and 3 (2.9%), p = 0.036). Besides, comparison of the HAMA and SDS scores before and after PM implantation showed significant differences in the S-control group (p = 0.010) and the N-group (p = 0.000).ConclusionsTemporary PM implantation via the median cubital vein is safe, effective, and less time-consuming.

Dataset Information

Temporary transvenous pacing guided by the combined use of ultrasound and intracavitary electrocardiography: a feasible and safe technique.

Publications

Temporary transvenous pacing guided by the combined use of ultrasound and intracavitary electrocardiography: a feasible and safe technique.

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