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Güllüpınar B, Sağlam C, Karagöz A, Koran S, Ünlüer EE. Ultrasound-Guided Radial Artery Puncture by Nurses in Emergency Department: A Randomized Controlled Study. J Emerg Nurs 2024; 50:373-380. [PMID: 38530698 DOI: 10.1016/j.jen.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/02/2024] [Accepted: 01/02/2024] [Indexed: 03/28/2024]
Abstract
INTRODUCTION Radial artery puncture has been performed by palpation as a standard method in many emergency departments and intensive care units. Nurses play an important role in the care of patients in various settings. Ultrasonography can be performed and interpreted not only by physicians but also by nurses. This study aimed to evaluate whether emergency nurses would be more successful in radial artery puncture procedure by using ultrasonography instead of palpation. METHODS This single-center, prospective, randomized controlled study was conducted in the emergency department. The patients included in the study were randomized into 2 groups as ultrasonography and palpation groups. Data were recorded on the number of interventions, the duration of the procedure in seconds, total time in seconds, whether the puncture was successfully placed, whether there were complications, the types of complications (hematoma, bleeding, and infection), or whether it was necessary to switch to an alternative technique. RESULTS A total of 72 patients, 36 patients in the ultrasonography group and 36 patients in the palpation group, participated in the study. The success rate at the first attempt was statistically significantly higher in the ultrasonography group. Although hematoma formation among the complications occurred in the entire palpation group, it was observed in 72.2% of the ultrasonography group. Puncture time and total time were statistically significantly lower in the ultrasonography group. DISCUSSION Our study shows that emergency nurses can use bedside ultrasonography for radial artery puncture successfully.
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Pillai RS, Kothari SF, Svensson P, Castrillon E. Comparison of force profiles from two musculoskeletal palpation methods: A methodological study. J Oral Rehabil 2024; 51:879-885. [PMID: 38240374 DOI: 10.1111/joor.13651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 12/05/2023] [Accepted: 12/13/2023] [Indexed: 04/09/2024]
Abstract
BACKGROUND The Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) protocol recommends a 5 s and 1 kg force dynamic palpation around the lateral condylar pole of the temporomandibular joint. However, the accuracy and precision of the generated force are not known. OBJECTIVE To assess and compare the force profiles generated from dynamic palpation manually and using a palpometer, based on the forces and time recommendations suggested by the DC/TMD protocol. METHODS Nineteen healthy adults applied forces of 0.5 kg, 1.0 kg and 2.0 kg on a calibrated force sensor in a circular motion within target times of 2 s and 5 s. Participants used their right index finger for manual palpation and a calibrated palpometer for device-assisted palpation. Ten repetitions of each target force at both target times were applied. Time taken to complete each application was recorded. Repeated measures analysis of variance was used for analysis of accuracy measured as the relative difference between targeted force and actual force values and precision measured as the coefficient of variation (CV) within the 10 repeated measurements. RESULTS Accuracy was significantly lower (better) and precision higher (lower CV) with the palpometer than with manual palpation (p < .001). There were significant differences in accuracy and precision between the different forces but not palpation times. Most participants could not achieve the target times and tended to be faster, irrespective of the palpation method (p > .063). CONCLUSION A palpometer is a more accurate and precise palpation method for dynamic force assessment compared to manual palpation; however, it remains difficult to standardize the palpation duration.
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Affiliation(s)
- Rajath Sasidharan Pillai
- Section for Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
- Scandinavian Center for Orofacial Neurosciences (SCON), Aarhus, Denmark/Malmö, Sweden
| | - Simple Futarmal Kothari
- Section for Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
- Scandinavian Center for Orofacial Neurosciences (SCON), Aarhus, Denmark/Malmö, Sweden
- Hammel Neurorehabilitation and University Research Clinic, Hammel, Denmark
| | - Peter Svensson
- Section for Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
- Scandinavian Center for Orofacial Neurosciences (SCON), Aarhus, Denmark/Malmö, Sweden
- Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Eduardo Castrillon
- Section for Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
- Scandinavian Center for Orofacial Neurosciences (SCON), Aarhus, Denmark/Malmö, Sweden
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Toledano BRF, Garganera KB, Prado JPA, Sabas ML. Routine preprocedural ultrasound in palpation versus ultrasound guided radial access for cardiac catheterization. Catheter Cardiovasc Interv 2024; 103:722-730. [PMID: 38469945 DOI: 10.1002/ccd.31005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/19/2024] [Accepted: 02/26/2024] [Indexed: 03/13/2024]
Abstract
BACKGROUND The radial first approach in cardiac catheterization is preferred for its benefits in patient comfort and recovery time. Yet, challenges persist due to characteristics like small, deep, calcified, and mobile radial arteries. Utilizing ultrasound before and during procedures can improve success rates. However, the adoption of its use is still limited and subject to debate. AIM To utilize routine preprocedural ultrasound (US) and compare US guided with palpation guided radial access, focusing on operator efficiency and outcomes. METHODS AND RESULTS Consenting adult patients undergoing elective radial cardiac catheterization were divided into palpation and US groups. Routine preprocedural assessment of radial artery characteristics was performed using handheld US. Baseline data, US findings, procedural outcomes, and clinical outcomes were compared in 182 participants (91 in each group). US guided radial access had significantly higher first pass success rates (76.92% vs. 49.45%, p 0.0001), fewer number of attempts (1.46 ± 1 vs. 1.99 ± 1.46, p 0.004), and shorter amount of time (93.62 ± 44.04 vs. 120.44 ± 67.1, p 0.002) compared with palpation guidance. The palpation group had significantly higher incidence of spasm (15.38% vs. 3.3%, p 0.0052). Subgroup analysis indicated consistent benefits of US guidance, especially in calcified radial arteries. CONCLUSION This prospective, nonrandomized, single-center study demonstrated that real-time procedural US improved the operator's time and effort and enhanced patient comfort compared with palpation. US guidance use was particularly favorable in the presence of calcifications observed on baseline preoperative US.
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Affiliation(s)
- Bryan Rene F Toledano
- Cardiac Catheterization Department, Cardiovascular Institute, The Medical City Hospital, Pasig City, Philippines
| | - Kristy B Garganera
- Cardiac Catheterization Department, Cardiovascular Institute, The Medical City Hospital, Pasig City, Philippines
| | - Jose Paolo A Prado
- Cardiac Catheterization Department, Cardiovascular Institute, The Medical City Hospital, Pasig City, Philippines
| | - Michelangelo L Sabas
- Cardiac Catheterization Department, Cardiovascular Institute, The Medical City Hospital, Pasig City, Philippines
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Nichols JW, Schmidt C, Raghuraman D, Turner D. Ultrasound-assisted bony landmark palpation in untrained palpators. J Osteopath Med 2023; 123:531-535. [PMID: 37498573 DOI: 10.1515/jom-2023-2002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 05/19/2023] [Indexed: 07/28/2023]
Abstract
CONTEXT Medical students with no previous experience may find it difficult to identify and palpate bony landmarks while learning physical examination skills. In a study of 168 medical schools, 72.6 % have indicated that they are utilizing ultrasound in their curriculum. Although the integration of ultrasound curriculum has become more widespread, the depth of instruction is inconsistent. Ultrasound is not commonly taught in conjunction with palpation of bony landmarks in osteopathic structural examination. OBJECTIVES The objective of this analysis was to identify whether utilizing ultrasound assistance in teaching palpation of specific thoracic vertebral bony landmarks would improve palpation accuracy in first-year medical students with no previous palpatory experience. METHODS First-year medical students were given video instructions to palpate and identify a thoracic vertebral transverse process and to mark it with invisible ink. The participants were then taught and instructed to utilize ultrasound to identify the same landmark and mark it with a different color. The accuracy of palpation was measured with digital calipers. RESULTS A test of the overall hypothesis that participants will show improved accuracy utilizing ultrasound compared with hand palpation was not significant (F=0.76, p>0.05). When separating students into groups according to patient body mass index (BMI), however, there was a trend toward significance (F=2.90, p=0.071) for an interaction effect between patient BMI and the repeated measures variable of palpation/ultrasound. When looking specifically at only those participants working with a normal BMI patient, there was a significant improvement in their accuracy with the use of ultrasound (F=7.92, p=0.017). CONCLUSIONS The analysis found increased accuracy in bony landmark identification in untrained palpators utilizing ultrasound vs. palpation alone in a normal BMI model, but not in obese or overweight BMI models. This study shows promise to the value that ultrasound may have in medical education, especially with respect to early palpation training and landmark identification.
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Affiliation(s)
- Jared W Nichols
- Osteopathic Manipulative Medicine, Kansas City University - Joplin Campus, Joplin, MO, USA
| | - Cindy Schmidt
- Director of Scholarly Activity and Faculty Development, Associate Professor, College of Medicine, Kansas City University, Kansas City, MO, USA
| | - Dipika Raghuraman
- Osteopathic Manipulative Medicine Fellow, Kansas City University - Joplin Campus, Joplin, MO, USA
| | - D'Arcy Turner
- Osteopathic Manipulative Medicine Fellow, Kansas City University - Joplin Campus, Joplin, MO, USA
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Kilicaslan C, Guran E, Karaca O. The accurate identification of the percutaneous tracheostomy insertion site using digital palpation in children. ULUS TRAVMA ACIL CER 2023; 29:1075-1080. [PMID: 37791446 PMCID: PMC10644085 DOI: 10.14744/tjtes.2023.59198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 10/05/2023]
Abstract
BACKGROUND Percutaneous tracheostomy (PT) may be required frequently in long-term ventilated intensive care patients. Although the overall risks are low, serious complications may occur, especially in children. Hence, this study aimed to assess physician accuracy in identifying PT insertion sites by digital palpation in children aged between 5 and 13 years. METHODS Participants were asked to identify the needle entry point (interspace between 2nd and 3rd or 3rd and 4th tracheal rings) for PT using digital palpation. Then, a single operator scanned the neck of each child with a linear high-frequency transducer. An accurate estimation was defined as a mark made between the upper and lower borders of the tracheal rings within the midline. RESULTS In the study including 104 patients, the PT insertion site was accurately identified with digital palpation in a total of 50.9% of patients, compared with sonographic findings. The time required to determine the PT entry point by USG was longer than the palpation technique (114.7 vs. 43.8 s, P<0.001). The mean distance between the entry points of both methods was 4.53±2.03 mm. The majority of inaccurate assessments (45%) was above the 2nd tracheal ring. The lower the skin-to-air-mucosal interface distance, the higher the success of the PT entry point detection with the digital palpation method. A one-unit increase in body mass index was related to increasing the risk of failure by 1.1 times (P=0.030). CONCLUSION Significant physician inaccuracy exists in PT insertion sites in children aged between 5 and 13 years, especially as BMI increases. Pre-procedural USG may help identify the landmarks for PT.
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Affiliation(s)
- Cengizhan Kilicaslan
- Department of Pediatrics, Aksaray University, Faculty of Medicine, Aksaray-Türkiye
| | - Ekin Guran
- Department of Anaesthesiology and Reanimation, Aksaray Training and Research Hospital, Aksaray-Türkiye
| | - Onur Karaca
- Department of Anaesthesiology and Reanimation, Aksaray University, Faculty of Medicine, Aksaray-Türkiye
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Chanthawong S, Tribuddharat S, Sathitkarnmanee T, Suwongkrua T, Silarat S, Plengpanich P. A comparison of the success rate of radial artery cannulation between the ultrasound-guided and conventional palpation techniques in elderly patients undergoing cardiothoracic surgery. Ann Card Anaesth 2022; 25:447-452. [PMID: 36254909 PMCID: PMC9732965 DOI: 10.4103/aca.aca_70_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/22/2021] [Accepted: 07/25/2021] [Indexed: 06/16/2023] Open
Abstract
BACKGROUND Ultrasound-guided (USG) radial artery cannulation against the standard palpation technique increases the first attempt rate in both pediatric and adult patients. The objective of this study was to evaluate the benefits of USG versus the palpation technique in improving the first attempt rate in elderly patients. METHODS The patients over 65 years of age were randomized to the USG or Palpation group. The radial artery identification in the USG group was performed with the aid of the Sonimage HS 1. In the Palpation group, the radial artery was identified by manual palpation. The operators were cardiothoracic anesthesiologists. Overall success was defined as cannulation completed within 10 min. RESULTS Eighty patients (40 in each group) were recruited. The respective first attempt and overall success rate for the USG group were similar to the Palpation group (P > 0.999 and P = 0.732). The time to the first attempt and overall success were also similar (P = 0.075 and P = 0.636). The number of attempts, number of catheters used, and failure rates were similar between the groups (P = 0.935, P = 0.938, and P = 0.723). The number of successful cannulations within 10 min was similar for both the groups as categorized by the radial artery diameter (P = 0.169). CONCLUSIONS The USG did not increase the first attempt or overall success rate of radial artery cannulation in the elderly patients undergoing cardiothoracic surgery. The time to first attempt and overall success were similar between both the groups. The number of attempts and number of catheters used were similar between both groups.
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Affiliation(s)
- Sarinya Chanthawong
- Department of Anesthesiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Sirirat Tribuddharat
- Department of Anesthesiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | | | - Thanaporn Suwongkrua
- Department of Anesthesiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Suparit Silarat
- Department of Anesthesiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Pathawat Plengpanich
- Department of Anesthesiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
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Raft J, Coinus L, Lamotte AS, Slosse C, Clerc-Urmès I, Baumann C, Richebé P, Bouaziz H. Arterial Cannulation Simulation Training in Novice Ultrasound Users. Respir Care 2022; 67:1154-1160. [PMID: 35820703 PMCID: PMC9994338 DOI: 10.4187/respcare.09675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Arterial cannulation is an important procedure for hemodynamic monitoring and blood sampling. Traditional radial artery cannulation is performed by using anatomical knowledge and pulse palpation as a guide. Arterial cannulation using ultrasound (US) requires specific training, especially for new US users. We hypothesized that even for new US users, US guidance would facilitate the successful puncture by lower attempts before successful intraluminal cannulation of a simulation model of the radial artery. METHODS A prospective randomized controlled crossover study was conducted with new US users on a gelatin phantom wrist. Three sessions of training were proposed: US-guided technique with low blood pressure (BP), palpation-guided technique with high BP, and one secondary comparison with low BP. For the 2 first sessions, all volunteers performed each technique but not in the same order. The main criterion was the number of attempts before successful catheterization of the model artery. A secondary criterion was the number of needle movements (the number of attempts plus the number of needle directional changes). RESULTS Twenty new US users participated in the study. Numbers of attempts before successful catheterization were significantly lower when using the US technique: 1.1 (± 0.4) for US versus 1.6 (± 0.8) for palpation high BP (P = .02) versus 2.5 (± 1.4) for the secondary comparison, palpation low BP (P < .001). All of the participants achieved success after the 12th needle movement for US technique, after the 19th needle movement for palpation high BP, and after the 25th needle movement for the secondary comparison, palpation low BP. The total time before success was not significantly different between the 2 first sequences (US vs palpation high BP). CONCLUSIONS US technique was more successful than traditional palpation technique for novice US users performing arterial cannulations for the first time. A study in the clinical practice is needed to confirm these results.
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Affiliation(s)
- Julien Raft
- Department of Anesthesiology, Cancer Institut of Lorraine, Vandoeuvre-les-Nancy, France; and INSERM UMR-S 1116 Equipe 2, University of Lorraine, Nancy, France.
| | - Léo Coinus
- Department of Anesthesiology and Intensive Care, University Hospital of Nancy, Nancy, France
| | - Anne-Sophie Lamotte
- Lycée des métiers Marie Marvingt, Tomblaine, France; and University of Lorraine, Nancy, France
| | - Côme Slosse
- Department of Anesthesiology and Intensive Care, University Hospital of Nancy, Nancy, France
| | - Isabelle Clerc-Urmès
- Methodological, Promotion and Investigation Department, UMDS, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
| | - Cédric Baumann
- Methodological, Promotion and Investigation Department, UMDS, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
| | - Philippe Richebé
- Department of Anesthesiology and Pain Medicine, University of Montreal, Maisonneuve-Rosemont Hospital, and CEMTL, Montréal, Quebec, Canada
| | - Hervé Bouaziz
- Department of Anesthesiology and Intensive Care, University Hospital of Nancy, Nancy, France
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Kelly GS, Tekes-Brady A, Woltman NM. Anatomic Characteristics of the Adolescent Cricothyroid Membrane on Computed Tomography Scans. Pediatr Emerg Care 2022; 38:e1533-e1537. [PMID: 36040472 DOI: 10.1097/pec.0000000000002622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND The cricothyroid membrane (CTM) is the most important anatomic structure when performing emergency front-of-neck access (FONA) procedures. Adolescence is a period of rapid morphologic change in laryngeal structures, including the CTM. We hypothesized that the adolescent CTM would be sufficiently different from pediatric or adult anatomy to merit special consideration in FONA. OBJECTIVE The aim of the study was to define the procedurally relevant CTM anatomy in an adolescent population. METHODS This was a retrospective, multicenter cohort study composed of patients who underwent a diagnostic computed tomography scan during routine clinical care. Inclusion criteria were ages 16 to 19 years and a computed tomography of the neck with or without contrast. The primary outcome was CTM height measured in the midsagittal plane using electronic calipers. RESULTS One hundred thirty-four imaging studies met inclusion criteria. The average CTM height was strongly associated with age and ranged between 5.4 and 6.2 mm in male adolescents and 4.6 and 5.8 mm in female adolescents. We predicted that standard cuffed endotracheal and tracheostomy tubes recommended for FONA procedures (5.0- and 6.0-mm devices) could potentially fail for most patients in our cohort. CONCLUSIONS The adolescent CTM is smaller than previously recognized. We recommend having a variety of equipment sizes readily available at any site where airway management in adolescents may occur.
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Albuquerque PMNM, Da Silva EPC, Melo TMDS, Montenegro EJN, de Oliveira DA, Guerino MR, De Siqueira GR. Inter-rater Accuracy and Reliability of a Palpation Protocol of the C7 Spinous Process Comprising a Combination of 3 Traditional Palpation Techniques. J Manipulative Physiol Ther 2022; 45:227-234. [PMID: 35879125 DOI: 10.1016/j.jmpt.2022.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 06/08/2022] [Accepted: 06/08/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The purpose of this study was to determine the accuracy and intrarater reliability of a palpatory protocol based on a combination of 3 palpatory methods to identify both the C7 spinous process (C7 SP) and the factors that affect the errors and inaccuracy of palpation. METHODS Twenty-five women between the ages of 18 and 60 years were submitted to a palpation protocol of the C7 SP, and a radiopaque marker was fixed on the skin at the possible location of the vertebrae. A radiograph and a photograph of the cervical spine were obtained in the same posture by a first rater. A second rater performed the same palpation protocol and took a second photograph. The accuracy and measurement error of the palpation protocol of C7 SP were assessed through radiographic images. The inter-rater reliability was estimated by the interclass correlation coefficient and assessed using photographs of each rater. The Pearson's correlation coefficients (r), the Fisher exact test, and the χ2 test were used to identify the factors associated with the error and inaccuracy of palpation. RESULTS Accuracy of the C7 palpation was 76% with excellent reliability (interclass correlation coefficient = 0.99). There was a moderate correlation between weight and the measurement of palpation error (r = -0.6; P = .003). One hundred percent of inaccuracy palpation was related to the increased soft-tissue thickness (P = .005) in the cervical region. CONCLUSION The palpation protocol described in this study was accurate and presented excellent reliability in identifying the C7 SP. Increased weight and dorsocervical fat pad were associated to error and palpation inaccuracy, respectively.
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Affiliation(s)
| | | | - Thania M de S Melo
- Department of Physiotherapy, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Eduardo J N Montenegro
- Department of Physiotherapy, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Daniella A de Oliveira
- Department of Physiotherapy, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Marcelo R Guerino
- Department of Physiotherapy, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Gisela R De Siqueira
- Department of Physiotherapy, Federal University of Pernambuco, Recife, Pernambuco, Brazil.
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Tarigan TJE, Anwar BS, Sinto R, Wisnu W. Diagnostic accuracy of palpation versus ultrasound-guided fine needle aspiration biopsy for diagnosis of malignancy in thyroid nodules: a systematic review and meta-analysis. BMC Endocr Disord 2022; 22:181. [PMID: 35843955 PMCID: PMC9290285 DOI: 10.1186/s12902-022-01085-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 05/25/2022] [Indexed: 11/12/2022] Open
Abstract
Thyroid nodule is a common health problem in endocrinology. Thyroid fine-needle aspiration biopsy (FNAB) cytology performed by palpation guided FNAB (PGFNAB) and ultrasound-guided FNAB (USGFNAB) are the preferred examinations for the diagnosis of thyroid cancer and part of the integration of the current thyroid nodule assessment. Although studies have shown USGFNAB to be more accurate than PGFNAB, inconsistencies from several studies and clinical guidelines still exist.The purpose of this study is to compare the diagnostic accuracy of Palpation versus Ultrasound-Guided Fine Needle Aspiration Biopsy in diagnosing malignancy of thyroid nodules.The systematic review and meta-analysis were prepared based on the PRISMA standards. Literature searches were carried out on three online databases (Pubmed/MEDLINE, Embase, and Proquest) and grey literatures. Data extraction was carried out manually from various studies that met the eligibility, followed by analysis to obtain pooled data on sensitivity, specificity, Diagnostic Odds Ratio (DOR) and Area Under Curve (AUC), and the comparison of the two methods.Total of 2517 articles were obtained, with 11 studies were included in this systematic review. The total sample was 2382, including 1128 subjects using PGFNAB and 1254 subjects using USGFNAB. The risk of bias was assessed using QUADAS-2 with mild-moderate results. The results of sensitivity, specificity, AUC and DOR in diagnosing thyroid nodules using PGFNAB were 76% (95% CI, 49-89%), 77% (95% CI, 56-95%), 0.827 and 11.6 (95% CI, 6-21) respectively. The results of sensitivity, specificity, AUC and DOR in diagnosing thyroid nodules using USGFNAB were 90% (95% CI, 81-95%), 80% (95% CI, 66-89%), 0.92 and 40 (95% CI, 23-69), respectively the results of the comparison test between PGFNAB and USGFNAB; Tsens USGFNAB of 0.99 (p = 0.023), AUC difference test of 0.093 (p = 0.000023).The diagnostic accuracy of USGFNAB is higher than PGFNAB in diagnosing malignancy of thyroid nodules. If it is accessible, the author recommends using USGFNAB as a diagnostic tool for thyroid nodules.
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Affiliation(s)
- Tri Juli Edi Tarigan
- Division of Endocrinology, Metabolism and Diabetes, Department of Internal Medicine, Dr. Cipto Mangunkusumo National General Hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia.
- Metabolic, Cardiovascular and Aging Cluster, The Indonesian Medical Education and Research Institute, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia.
| | - Budiman Syaeful Anwar
- Department of Internal Medicine, Dr. Cipto Mangunkusumo National General Hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Robert Sinto
- Division of Infection and Tropical Disease, Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Wismandari Wisnu
- Division of Endocrinology, Metabolism and Diabetes, Department of Internal Medicine, Dr. Cipto Mangunkusumo National General Hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
- Metabolic, Cardiovascular and Aging Cluster, The Indonesian Medical Education and Research Institute, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
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Ferreira APA, Zanier JFC, Santos EBG, Ferreira AS. Accuracy of Palpation Procedures for Locating the C1 Transverse Process and Masseter Muscle as Confirmed by Computed Tomography Images. J Manipulative Physiol Ther 2022; 45:337-345. [PMID: 36175313 DOI: 10.1016/j.jmpt.2022.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 07/13/2022] [Accepted: 07/14/2022] [Indexed: 11/21/2022]
Abstract
OBJECTIVE The purpose of this study was to examine the accuracy of palpation methods for locating the transverse processes of the first cervical vertebra and masseter muscle using radiographic images as the gold-standard method and the association between personal characteristics with the observed accuracy. METHODS This was a single-blinded, diagnostic accuracy study. Ninety-five participants (49 women, 58 ± 16 years of age) were enrolled in this study. A single examiner palpated the neck and face region of all participants to identify the transverse processes of the first cervical vertebra and masseter muscles bilaterally. In sequence, participants underwent a multislice computed tomography scan for assessment of the superimposed inner body structure. Two radiologists assessed the computed tomography images using the same criteria and were blinded regarding each other's assessment and the anatomic landmarks under investigation. The palpation accuracy was calculated as the proportion of the correctly identified landmarks in the studied sample. The correlation of the palpation outcome (correct = 1; incorrect = 0) with age, sex (male = 1; female = 0), and body mass index was investigated using the point-biserial correlation coefficient. RESULTS The right and left transverse processes were correctly located in 76 (80%) and 81 (85%) participants, respectively, and bilaterally in 157 events (83%), as evaluated by the consensus of the 2 radiologists. The masseter muscles were correctly localized bilaterally in 95 of 95 (100%) participants. Body mass showed statistical evidence of a weak, positive correlation with the correct location of the transverse processes of the first cervical vertebra at the right body side (r = .219; 95% confidence interval, 0.018-0.403; P = .033). CONCLUSION Palpation methods used in this study accurately identified the location of the first cervical vertebra spinous processes and the masseter muscles.
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Affiliation(s)
- Ana Paula A Ferreira
- Postgraduate Program in Rehabilitation Sciences, Centro Universitário Augusto Motta, Rio de Janeiro, Brazil; Clinical-Based Human Research Department, Foundation COME Collaboration, Pescara, Italy; Visiting Fellow, ARCCIM, University of Technology Sydney, Sydney, Australia; Instituto Brasileiro de Osteopatia, Rio de Janeiro, Brazil.
| | - José Fernando C Zanier
- University Hospital Pedro Ernesto, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eduardo Brown G Santos
- University Hospital Pedro Ernesto, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Arthur S Ferreira
- Postgraduate Program in Rehabilitation Sciences, Centro Universitário Augusto Motta, Rio de Janeiro, Brazil.
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He L, Maiolino P, Leong F, Lalitharatne TD, de Lusignan S, Ghajari M, Iida F, Nanayakkara T. Robotic Simulators for Tissue Examination Training with Multimodal Sensory Feedback. IEEE Rev Biomed Eng 2022; 16:514-529. [PMID: 35439140 DOI: 10.1109/rbme.2022.3168422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Tissue examination by hand remains an essential technique in clinical practice. The effective application depends on skills in sensorimotor coordination, mainly involving haptic, visual, and auditory feedback. The skills clinicians have to learn can be as subtle as regulating finger pressure with breathing, choosing palpation action, monitoring involuntary facial and vocal expressions in response to palpation, and using pain expressions both as a source of information and as a constraint on physical examination. Patient simulators can provide a safe learning platform to novice physicians before trying real patients. This paper reviews state-of-the-art medical simulators for the training for the first time with a consideration of providing multimodal feedback to learn as many manual examination techniques as possible. The study summarizes current advances in tissue examination training devices simulating different medical conditions and providing different types of feedback modalities. Opportunities with the development of pain expression, tissue modeling, actuation, and sensing are also analyzed to support the future design of effective tissue examination simulators.
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Weiniger CF, Carvalho B, Ronel I, Greenberger C, Aptekman B, Almog O, Kagan G, Shalev S. A randomized trial to investigate needle redirections/re-insertions using a handheld ultrasound device versus traditional palpation for spinal anesthesia in obese women undergoing cesarean delivery. Int J Obstet Anesth 2021; 49:103229. [PMID: 34670725 DOI: 10.1016/j.ijoa.2021.103229] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 09/05/2021] [Accepted: 09/15/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Ultrasound may be useful to identify the spinal anesthesia insertion point, particularly when landmarks are not palpable. We tested the hypothesis that the number of needle redirections/re-insertions is lower when using a handheld ultrasound device compared with palpation in obese women undergoing spinal anesthesia for cesarean delivery. METHODS Study recruits were obese (body mass index (BMI) >30 kg/m2) women with impalpable bony landmarks who were undergoing spinal anesthesia for elective cesarean delivery. Women were randomized to ultrasound or palpation. The primary study outcome was a composite between-group comparison of total number of needle redirections (any withdrawal and re-advancement of the needle and/or introducer within the intervertebral space) or re-insertions (any new skin puncture in the same or different intervertebral space) per patient. Secondary outcomes included insertion site identification time and patient verbal numerical pain score (0-10) for comfort during surgical skin incision. RESULTS Forty women completed the study. The mean BMI (standard deviation) for the ultrasound group was 39.8 (5.5) kg/m2 and for the palpation group 37.3 (5.2) kg/m2. There was no difference in the composite primary outcome (median (interquartile range) [range]) between the ultrasound group (4 (2-13) [2-22]) and the (6 (4-10) [1-17]) palpation group (P=0.22), with the 95% confidence interval of the difference 2 (-1.7 to 5.7). There were no differences in the secondary outcomes. CONCLUSIONS Handheld ultrasound did not demonstrate any advantages over traditional palpation techniques for spinal anesthesia in an obese population undergoing cesarean delivery, although the study was underpowered to show a difference.
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Affiliation(s)
- C F Weiniger
- Division of Anesthesia, Critical Care and Pain, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel.
| | - B Carvalho
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - I Ronel
- Division of Anesthesia, Critical Care and Pain, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - C Greenberger
- Division of Anesthesia, Critical Care and Pain, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - B Aptekman
- Division of Anesthesia, Critical Care and Pain, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - O Almog
- Division of Anesthesia, Critical Care and Pain, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - G Kagan
- Division of Anesthesia, Critical Care and Pain, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - S Shalev
- Division of Anesthesia, Critical Care and Pain, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
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Macey R, Walsh T, Riley P, Glenny AM, Worthington HV, O'Malley L, Clarkson JE, Ricketts D. Visual or visual-tactile examination to detect and inform the diagnosis of enamel caries. Cochrane Database Syst Rev 2021; 6:CD014546. [PMID: 34124773 PMCID: PMC8428329 DOI: 10.1002/14651858.cd014546] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The detection and diagnosis of caries at the initial (non-cavitated) and moderate (enamel) levels of severity is fundamental to achieving and maintaining good oral health and prevention of oral diseases. An increasing array of methods of early caries detection have been proposed that could potentially support traditional methods of detection and diagnosis. Earlier identification of disease could afford patients the opportunity of less invasive treatment with less destruction of tooth tissue, reduce the need for treatment with aerosol-generating procedures, and potentially result in a reduced cost of care to the patient and to healthcare services. OBJECTIVES To determine the diagnostic accuracy of different visual classification systems for the detection and diagnosis of non-cavitated coronal dental caries for different purposes (detection and diagnosis) and in different populations (children or adults). SEARCH METHODS Cochrane Oral Health's Information Specialist undertook a search of the following databases: MEDLINE Ovid (1946 to 30 April 2020); Embase Ovid (1980 to 30 April 2020); US National Institutes of Health Ongoing Trials Register (ClinicalTrials.gov, to 30 April 2020); and the World Health Organization International Clinical Trials Registry Platform (to 30 April 2020). We studied reference lists as well as published systematic review articles. SELECTION CRITERIA We included diagnostic accuracy study designs that compared a visual classification system (index test) with a reference standard (histology, excavation, radiographs). This included cross-sectional studies that evaluated the diagnostic accuracy of single index tests and studies that directly compared two or more index tests. Studies reporting at both the patient or tooth surface level were included. In vitro and in vivo studies were considered. Studies that explicitly recruited participants with caries into dentine or frank cavitation were excluded. We also excluded studies that artificially created carious lesions and those that used an index test during the excavation of dental caries to ascertain the optimum depth of excavation. DATA COLLECTION AND ANALYSIS We extracted data independently and in duplicate using a standardised data extraction and quality assessment form based on QUADAS-2 specific to the review context. Estimates of diagnostic accuracy were determined using the bivariate hierarchical method to produce summary points of sensitivity and specificity with 95% confidence intervals (CIs) and regions, and 95% prediction regions. The comparative accuracy of different classification systems was conducted based on indirect comparisons. Potential sources of heterogeneity were pre-specified and explored visually and more formally through meta-regression. MAIN RESULTS We included 71 datasets from 67 studies (48 completed in vitro) reporting a total of 19,590 tooth sites/surfaces. The most frequently reported classification systems were the International Caries Detection and Assessment System (ICDAS) (36 studies) and Ekstrand-Ricketts-Kidd (ERK) (15 studies). In reporting the results, no distinction was made between detection and diagnosis. Only two studies were at low risk of bias across all four domains, and 15 studies were at low concern for applicability across all three domains. The patient selection domain had the highest proportion of high risk of bias studies (49 studies). Four studies were assessed at high risk of bias for the index test domain, nine for the reference standard domain, and seven for the flow and timing domain. Due to the high number of studies on extracted teeth concerns regarding applicability were high for the patient selection and index test domains (49 and 46 studies respectively). Studies were synthesised using a hierarchical bivariate method for meta-analysis. There was substantial variability in the results of the individual studies: sensitivities ranged from 0.16 to 1.00 and specificities from 0 to 1.00. For all visual classification systems the estimated summary sensitivity and specificity point was 0.86 (95% CI 0.80 to 0.90) and 0.77 (95% CI 0.72 to 0.82) respectively, diagnostic odds ratio (DOR) 20.38 (95% CI 14.33 to 28.98). In a cohort of 1000 tooth surfaces with 28% prevalence of enamel caries, this would result in 40 being classified as disease free when enamel caries was truly present (false negatives), and 163 being classified as diseased in the absence of enamel caries (false positives). The addition of test type to the model did not result in any meaningful difference to the sensitivity or specificity estimates (Chi2(4) = 3.78, P = 0.44), nor did the addition of primary or permanent dentition (Chi2(2) = 0.90, P = 0.64). The variability of results could not be explained by tooth surface (occlusal or approximal), prevalence of dentinal caries in the sample, nor reference standard. Only one study intentionally included restored teeth in its sample and no studies reported the inclusion of sealants. We rated the certainty of the evidence as low, and downgraded two levels in total for risk of bias due to limitations in the design and conduct of the included studies, indirectness arising from the in vitro studies, and inconsistency of results. AUTHORS' CONCLUSIONS Whilst the confidence intervals for the summary points of the different visual classification systems indicated reasonable performance, they do not reflect the confidence that one can have in the accuracy of assessment using these systems due to the considerable unexplained heterogeneity evident across the studies. The prediction regions in which the sensitivity and specificity of a future study should lie are very broad, an important consideration when interpreting the results of this review. Should treatment be provided as a consequence of a false-positive result then this would be non-invasive, typically the application of fluoride varnish where it was not required, with low potential for an adverse event but healthcare resource and finance costs. Despite the robust methodology applied in this comprehensive review, the results should be interpreted with some caution due to shortcomings in the design and execution of many of the included studies. Studies to determine the diagnostic accuracy of methods to detect and diagnose caries in situ are particularly challenging. Wherever possible future studies should be carried out in a clinical setting, to provide a realistic assessment of performance within the oral cavity with the challenges of plaque, tooth staining, and restorations, and consider methods to minimise bias arising from the use of imperfect reference standards in clinical studies.
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Affiliation(s)
- Richard Macey
- Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Tanya Walsh
- Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Philip Riley
- Cochrane Oral Health, Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Anne-Marie Glenny
- Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Helen V Worthington
- Cochrane Oral Health, Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Lucy O'Malley
- Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Janet E Clarkson
- Division of Oral Health Sciences, Dundee Dental School, University of Dundee, Dundee, UK
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Hung KC, Chen IW, Lin CM, Sun CK. Comparison between ultrasound-guided and digital palpation techniques for identification of the cricothyroid membrane: a meta-analysis. Br J Anaesth 2020; 126:e9-e11. [PMID: 32896429 DOI: 10.1016/j.bja.2020.08.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/21/2020] [Accepted: 08/11/2020] [Indexed: 12/20/2022] Open
Affiliation(s)
- Kuo-Chuan Hung
- Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan
| | - I-Wen Chen
- Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan
| | - Chien-Ming Lin
- Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan
| | - Cheuk-Kwan Sun
- Department of Emergency Medicine, E-Da Hospital, Kaohsiung, Taiwan; College of Medicine, I-Shou University, Kaohsiung, Taiwan.
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Saltiel F, Miranda-Gazzola APG, Vitória RO, Sampaio RF, Figueiredo EM. Linking Pelvic Floor Muscle Function Terminology to the International Classification of Functioning, Disability and Health. Phys Ther 2020; 100:1659-1680. [PMID: 32201881 DOI: 10.1093/ptj/pzaa044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 02/11/2020] [Indexed: 02/09/2023]
Abstract
OBJECTIVE A previous systematic review on pelvic floor muscle function (PFMF) identified a miscellaneity of terms. The lack of consensual terminology might have come from the complexity of neuromusculoskeletal function itself. This study sought to link the previously identified PFMF terms to the International Classification of Functioning, Disability and Health (ICF) terminology. METHODS In this secondary analysis study, 10 linkage rules were applied to link 196 previously identified PFMF terms to the ICF. Two researchers performed the linking process independently. Disagreements were solved by open dialogue with a third researcher. Percentage agreement was computed for main outcome. RESULTS A total of 184 (93.9%) PFMF terms were subsumed into the following 6 ICF terms: tone, involuntary movement reaction, control, coordination, strength, and endurance. The most frequently investigated PFMF was strength (25.5%), followed by involuntary movement reaction (22.9%), endurance (17.2%), control (14.1%), coordination (9.9%), and tone (4.2%). Only 6.2% PFMF could not be linked to ICF terminology. A wide variation of instruments/methods was used to measure PFMF. Vaginal palpation was the only method employed to measure all 6 PFMF. Percentage agreement between raters was 100%. CONCLUSIONS Linking PFMF terminology to the ICF was feasible and valid. It allowed the identification of the most investigated PFMF and their measuring methods. ICF terminology to describe PFMF should be used since it may improve communication, data gathering, and the advance in scientific knowledge. IMPACT Standardized terminology anchored in a theoretical framework is crucial to data gathering, communication, and dissemination of evidence-based practice. PFMF terminology based on ICF can be used to improve data pooling and communication.
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Naranjo-Cinto F, Falcon-Machado G, Garrido-Marin A, Senin-Camargo FJ, Jacome-Pumar MA, Fernandez-Matias R, Pecos-Martin D, Gallego-Izquierdo T. Inter-and Intra-Examiner Reliability of Supraspinatus Muscle Tendon Palpation: A Cross-Sectional Study by Ultrasonography. ACTA ACUST UNITED AC 2020; 56:medicina56020083. [PMID: 32085506 PMCID: PMC7073570 DOI: 10.3390/medicina56020083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/10/2020] [Accepted: 02/14/2020] [Indexed: 11/25/2022]
Abstract
Background and objectives: Palpation is an inherent and basic skill of health professionals—particularly manual therapists who base their diagnosis and treatment in a clinical environment. Many authors have previously described multiple palpation positions for supraspinatus muscle tendon (SMT); however, there are no current studies that evaluate palpation concordance reliability for the SMT in this particular position. This study aimed to investigate the intra- and inter-rater reliabilities of supraspinatus muscle tendon (SMT) palpation. Materials and Methods: Thirty-six healthy participants (14 females; aged 22–35 years) were recruited. Musculoskeletal ultrasound was used to measure the SMT localization after two physiotherapists performed the SMT palpation at two different times. The distance between the two marked points was used to analyze the analysis of true agreement between examiners. Finally, we analyzed if the demographic variables influenced the palpation procedure. Results: The intra-examiner reliability showed a high percentage of concordance for examiner 1 (E.1) (first palpation procedure (P.1) = 91.7%: second palpation procedure (P.2) = 95.8%) and examiner 2 (E.2) (P.1 = 91.6%; P.2 = 97.2%) and high percentage of inter-palpation agreement for E.1 (87.5%) and E.2 (88.9%). The inter-examiner reliability showed a high total concordance for the right shoulder (E.1 = 94.4%; E.2 = 95.8%) and left shoulder (E.1 = 93.05%; E.2 = 95.05%). The agreement (%) according to both examiners was 93.05% for the right shoulder and 94.4% for the left shoulder. The agreement between both examiners and the ultrasound (% of true agreement) was 92.9% for the right shoulder and 92.8% for the left shoulder. A statistically significant association (p = 0.02) was found for weight regarding concordance reliability; this was not seen for dominant arm, age, gender, body mass index, height, and tendon depth (p > 0.05). Conclusions: The SMT palpation technique showed a high level of concordance and reproducibility.
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Affiliation(s)
- Fermin Naranjo-Cinto
- Physiotherapy and Pain Group, Department of Physical Therapy, University of Alcala, Alcalá de Henares, 28871 Madrid, Spain; (F.N.-C.); (T.G.-I.)
| | - Giezi Falcon-Machado
- Instituto de Investigación Fisioterapia y Dolor, University of Alcala, Alcalá de Henares, 28805 Madrid, Spain; (G.F.-M.); (R.F.-M.)
| | - Alejandro Garrido-Marin
- CARMASALUD Clinical and Research Center, 28037 Madrid, Spain;
- Department of Physical Therapy and Podiatry, Faculty of Health, Exercise and Sport, European University of Madrid, 28670 Madrid, Spain
| | - Francisco Jose Senin-Camargo
- Department of Biomedical Sciences, Medicine and Physiotherapy, Faculty of Physiotherapy, Universidade da Coruña, 15006 A Coruña, Spain;
| | - Maria Amalia Jacome-Pumar
- MODES group, CITIC, Department of Mathematics, Faculty of Sciences, Universidade da Coruña, 15008 A Coruña, Spain;
| | - Ruben Fernandez-Matias
- Instituto de Investigación Fisioterapia y Dolor, University of Alcala, Alcalá de Henares, 28805 Madrid, Spain; (G.F.-M.); (R.F.-M.)
| | - Daniel Pecos-Martin
- Physiotherapy and Pain Group, Department of Physical Therapy, University of Alcala, Alcalá de Henares, 28871 Madrid, Spain; (F.N.-C.); (T.G.-I.)
- Correspondence:
| | - Tomas Gallego-Izquierdo
- Physiotherapy and Pain Group, Department of Physical Therapy, University of Alcala, Alcalá de Henares, 28871 Madrid, Spain; (F.N.-C.); (T.G.-I.)
- Instituto de Investigación Fisioterapia y Dolor, University of Alcala, Alcalá de Henares, 28805 Madrid, Spain; (G.F.-M.); (R.F.-M.)
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Krishna KL, Srinath BS, Santosh D, Velusamy S, Divyamala KP, Sariya Mohammadi J, Kurpad V, Kulkarni S, Yaji P, Goud S, Dhanireddy S, Ram J. A comparative study of perioperative techniques to attain negative margins and spare healthy breast tissue in breast conserving surgery. Breast Dis 2020; 39:127-135. [PMID: 32831188 DOI: 10.3233/bd-200443] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
BACKGROUND AND AIM Traditionally lumpectomy as a part of breast-conserving surgery (BCS) is performed by palpation-guided method leading to positive margins and large excision volumes. There is no evidence suggesting that wide margin excisions decrease intra-breast tumour recurrence. Various perioperative techniques are used for margin assessment. We aimed to compare three commonly used techniques, i.e., ultrasound-guided surgery, palpation-guided surgery and cavity shaving for attaining negative margins and estimating the extent of healthy breast tissue resection. METHOD A prospective comparative study was performed on 90 patients who underwent breast conservation surgery for early breast cancer between August 2018 and June 2019. Tumour excision with a minimum of 1 cm margin was done either using ultrasound, palpation or cavity shaving. Histopathological evaluation was done to assess the margin status and excess amount of resected normal breast tissue. Calculated resection ratio (CRR) defining the excess amount of the resected breast tissue was achieved by dividing the total resection volume (TRV) by optimal resection volume (ORV). The time taken for excision was also recorded. RESULTS Histopathology of all 90 patients (30 in each group) revealed a negative resection margin in 93.3% of 30 patients in palpation-guided surgery group and 100% in both ultrasound-guided surgery and cavity shaving groups. Two patients (6.7%) from the cavity shaving group had positive margins on initial lumpectomy but shave margins were negative. TRV was significantly less in the ultrasound-guided surgery group compared to the palpation-guided surgery group and cavity shaving group (76.9 cm3, 94.7 cm3 and 126.3 cm3 respectively; p < 0.0051). CRR was 1.2 in ultrasound group compared to 1.9 in palpation group and 2.1 in cavity shave group which was also statistically significant (p < 0.0001).Excision time was significantly less (p < 0.001) in palpation-guided surgery group (13.8 min) compared to cavity shaving group (15.1 min) and ultrasound-guided group (19.4 min). CONCLUSION Ultrasound-guided surgery is more accurate in attaining negative margins with the removal of least amount of healthy breast tissue compared to palpation-guided surgery and cavity shaving.
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Affiliation(s)
- Kanyadhara Lohita Krishna
- Department of Surgical Oncology, Sri Shankara Cancer Hospital and Research Centre, Basavangudi, Bangalore, Karnataka, India
| | - B S Srinath
- Department of Surgical Oncology, Sri Shankara Cancer Hospital and Research Centre, Basavangudi, Bangalore, Karnataka, India
| | - Divya Santosh
- Department of Breast Radiology, Sri Shankara Cancer Hospital and Research Centre, Basavangudi, Bangalore, Karnataka, India
| | - Shanthi Velusamy
- Department of Pathology, Sri Shankara Cancer Hospital and Research Centre, Basavangudi, Bangalore, Karnataka, India
| | - K P Divyamala
- Department of Pathology, Sri Shankara Cancer Hospital and Research Centre, Basavangudi, Bangalore, Karnataka, India
| | - J Sariya Mohammadi
- Department of Surgical Oncology, Sri Shankara Cancer Hospital and Research Centre, Basavangudi, Bangalore, Karnataka, India
| | - Vishnu Kurpad
- Department of Surgical Oncology, Sri Shankara Cancer Hospital and Research Centre, Basavangudi, Bangalore, Karnataka, India
| | - Sanjeev Kulkarni
- Department of Surgical Oncology, Sri Shankara Cancer Hospital and Research Centre, Basavangudi, Bangalore, Karnataka, India
| | - Prabhat Yaji
- Department of Surgical Oncology, Sri Shankara Cancer Hospital and Research Centre, Basavangudi, Bangalore, Karnataka, India
| | - Sandeep Goud
- Department of Surgical Oncology, Sri Shankara Cancer Hospital and Research Centre, Basavangudi, Bangalore, Karnataka, India
| | - Subhashini Dhanireddy
- Department of Surgical Oncology, Sri Shankara Cancer Hospital and Research Centre, Basavangudi, Bangalore, Karnataka, India
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Wang J, Lai Z, Weng X, Lin Y, Wu G, Su J, Huang Q, Zeng J, Liu J, Zhao Z, Yan T, Zhang L, Zhou L. Modified long-axis in-plane ultrasound technique versus conventional palpation technique for radial arterial cannulation: A prospective randomized controlled trial. Medicine (Baltimore) 2020; 99:e18747. [PMID: 31914094 PMCID: PMC6959944 DOI: 10.1097/md.0000000000018747] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND A low first-pass success rate of radial artery cannulation was obtained when using the conventional palpation technique (C-PT) or conventional ultrasound-guided techniques, we; therefore, evaluate the effect of a modified long-axis in-plane ultrasound technique (M-LAINUT) in guiding radial artery cannulation in adults. METHODS We conducted a prospective, randomized and controlled clinical trial of 288 patients undergoing radial artery cannulation. Patients were randomized 1:1 to M-LAINUT or C-PT group at Fujian Medical University Union Hospital between 2017 and 2018. Radial artery cannulation was performed by 3 anesthesiologists with different experience. The outcome was the first and total radial artery cannulation success rates, the number of attempts and the cannulation time, and incidence of complications. RESULTS Two hundred eighty-five patients were statistically analyzed. The success rate of first attempt was 91.6% in the M-LAINUT group (n = 143) and 57.7% in the C-PT group (n = 142; P < .001) (odds ratio, 7.9; 95% confidence interval, 4.0-15.7). The total success rate (≤5 minutes and ≤3 attempts) in the M-LAINUT group was 97.9%, compared to 84.5% in the palpation group (P < .001) (odds ratio, 8.5; 95% confidence interval, 2.5-29.2). The total cannulation time was shorter and the number of attempts was fewer in the M-LAINUT group than that in the C-PT group (P < .05). The incidence of hematoma in the C-PT group was 19.7%, which was significantly higher than the 2.8% in the M-LAINUT group (P < .001). CONCLUSIONS Modified long-axis in-plane ultrasound-guided radial artery cannulation can increase the first and total radial artery cannulation success rates, reduce the number of attempts, and shorten the total cannulation time in adults.
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Affiliation(s)
| | | | | | - Yong Lin
- Department of Cardiovascular Surgery, Fujian Medical University Union Hospital
| | | | | | | | | | | | | | | | | | - Linying Zhou
- Public Technology Service Center of Fujian Medical University, Fujian Medical University, Fuzhou, Fujian Province, China
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Pietroboni PF, Carvajal CM, Zuleta YI, Ortiz PL, Lucero YC, Drago M, vonDessauer B. Landmark versus ultrasound-guided insertion of femoral venous catheters in the pediatric intensive care unit: An efficacy and safety comparison study. Med Intensiva 2019; 44:96-100. [PMID: 31630916 DOI: 10.1016/j.medin.2019.07.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 07/24/2019] [Accepted: 07/30/2019] [Indexed: 01/19/2023]
Abstract
BACKGROUND Central venous cannulation (CVC) is common and necessary in pediatric intensive care. However, this procedure is not without risks or complications. Although CVCs have classically been placed following anatomical landmarks, the use of ultrasound guidance has largely replaced the latter, given its better profile of efficacy and safety, demonstrated at least in adult populations. OBJECTIVES To compare the effectiveness and safety in the insertion of femoral central venous catheters guided by ultrasound (US) versus the anatomical method (LM) in critical care pediatric patients. METHODS 100 patients were randomized: 50 were assigned to the US group and 49 to the LM group. In the LM group the traditional method consisted in palpating the femoral artery pulse as a; in the US group the CVC was inserted using a real time technique. Success at the first attempt, overall success in cannulation, number of attempts and arterial puncture were the variables studied in both groups. RESULTS Success at the first attempt and overall success in cannulation were significantly higher in the US group versus the LM (US 42% vs. LM 18%, p 0.011, US 84% vs. LM 51% p <0.001, respectively). The incidence of puncture of the femoral artery was lower in the US group (LM 12 vs. US 5, p 0.056) without achieving statistical significance. CONCLUSIONS According to our results, the placement of central venous access via the femoral approach should be preferably performed under ultrasound guidance, however, further studies in larger populations are needed to confirm this findings.
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Affiliation(s)
- P F Pietroboni
- Graduate School of Universidad de Chile, Pediatric Intensive Care, Specialization Program, Santiago, Chile.
| | - C M Carvajal
- Graduate School of Universidad de Chile, Pediatric Intensive Care, Specialization Program, Santiago, Chile
| | - Y I Zuleta
- Graduate School of Universidad de Chile, Pediatric Intensive Care, Specialization Program, Santiago, Chile
| | - P L Ortiz
- Graduate School of Universidad de Chile, Pediatric Intensive Care, Specialization Program, Santiago, Chile
| | - Y C Lucero
- Research Unit, Luis Calvo Mackenna Hospital, Santiago, Chile
| | - M Drago
- Graduate School of Universidad de Chile, Pediatric Intensive Care, Specialization Program, Santiago, Chile
| | - B vonDessauer
- Graduate School of Universidad de Chile, Pediatric Intensive Care, Specialization Program, Santiago, Chile
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Rudnicki Y. [Let us not forget to teach how to palpate the abdomen]. Harefuah 2019; 158:695-696. [PMID: 31576727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- Yaron Rudnicki
- Department of Surgery B, Meir Medical Center, Kfar Saba, Israel
- Sackler Faculty of Medicine, Tel-Aviv University
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Walrod BJ, Boucher LC, Conroy MJ, McCamey KL, Hartz CA, Way DP, Jonesco MA, Albrechta S, Bockbrader M, Bahner DP. Beyond Bones: Assessing Whether Ultrasound-Aided Instruction and Practice Improve Unassisted Soft Tissue Palpation Skills of First-Year Medical Students. J Ultrasound Med 2019; 38:2047-2055. [PMID: 30561028 DOI: 10.1002/jum.14894] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 11/19/2018] [Indexed: 05/22/2023]
Abstract
OBJECTIVES Our purpose was to determine whether ultrasound (US)-aided instruction and practice on musculoskeletal anatomy would improve first-year medical students' ability to locate and identify specific soft tissue structures by unaided palpation in the upper and lower extremities of healthy human models. METHODS This study was a randomized crossover design with 49 first-year medical students randomly assigned to 1 of 2 groups. Each group was provided expert instruction and hands-on practice using US to scan and study soft tissue structures. During session 1, group A learned the anatomy of the upper extremities, whereas group B learned the lower. Students were then tested on their proficiency in locating 4 soft tissue structures (2 upper and 2 lower extremities) through palpation of a human model. During session 2, group A learned lower extremities, and group B learned upper. At the end of session 2, students repeated the assessment. RESULTS After the first instructional session, neither group performed significantly better on identifying and locating the soft tissue landmarks they learned aided by US. After the second instructional session, however, scores for both groups increased approximately 20 percentage points, indicating that both groups performed significantly better on palpating and identifying both the upper and lower extremity soft tissue landmarks (Cohen d = 0.89 and 0.82, respectively). CONCLUSIONS Time and practice viewing soft tissue structures with US assistance seems to have a "palpation-with-eyes" effect that improves students' abilities to correctly locate, palpate, and identify limb-specific soft tissue structures once the US assistance is removed.
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Affiliation(s)
- Bryant J Walrod
- Department of Family Medicine, The Ohio State University College of Medicine, Jameson Crane Sports Medicine Institute, Columbus, Ohio, USA
| | - Laura C Boucher
- Athletic Training Division, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Mark J Conroy
- Departments of Emergency Medicine, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Kendra L McCamey
- Department of Family Medicine, The Ohio State University College of Medicine, Jameson Crane Sports Medicine Institute, Columbus, Ohio, USA
| | - Clinton A Hartz
- Department of Family Medicine, The Ohio State University College of Medicine, OSU Sports Medicine at Lewis Center, Lewis Center, Ohio, USA
| | - David P Way
- Departments of Emergency Medicine, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Michael A Jonesco
- Department of Family Medicine, The Ohio State University College of Medicine, Jameson Crane Sports Medicine Institute, Columbus, Ohio, USA
| | - Steven Albrechta
- Department of Family Medicine, The Ohio State University College of Medicine, Jameson Crane Sports Medicine Institute, Columbus, Ohio, USA
| | - Marcia Bockbrader
- Physical Medicine and Rehabilitation, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - David P Bahner
- Departments of Emergency Medicine, The Ohio State University College of Medicine, Columbus, Ohio, USA
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Kamp R, Möltner A, Harendza S. "Princess and the pea" - an assessment tool for palpation skills in postgraduate education. BMC Med Educ 2019; 19:177. [PMID: 31146715 PMCID: PMC6543652 DOI: 10.1186/s12909-019-1619-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 05/22/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND In osteopathic medicine, palpation is considered to be the key skill to be acquired during training. Whether palpation skills are adequately acquired during undergraduate or postgraduate training is difficult to assess. The aim of our study was to test a palpation assessment tool developed for undergraduate medical education in a postgraduate medical education (PME) setting. METHODS We modified and standardized an assessment tool, where a coin has to be palpated under different layers of copy paper. For every layer depth we randomized the hiding positions with a random generator. The task was to palpate the coin or to determine that no coin was hidden in the stack. We recruited three groups of participants: 22 physicians with no training in osteopathic medicine, 25 participants in a PME course of osteopathic techniques before and after a palpation training program, 31 physicians from an osteopathic expert group with at least 700 h of osteopathic skills training. These experts ran the test twice to check for test-retest-reliability. Inferential statistical analyzes were performed using generalized linear mixed models with the dichotomous variable "coin detected / not detected" as the dependent variable. RESULTS We measured a test-retest reliability of the assessment tool as a whole with 56 stations in the expert group of 0.67 (p < 0.001). For different paper layers, we found good retest reliabilities up to 300 sheets. The control group detected a coin significantly better in a depth of 150 sheets (p = 0.01) than the pre-training group. The osteopathic training group showed significantly more correct coin localizations after the training in layer depths of 200 (p = 0.03) and 300 sheets (p = 0.05). This group also had significantly better palpation results than the expert group in the depth of 300 sheets (p = 0.001). When there was no coin hidden, the expert group showed significantly better results than the post-training group (p = 0.01). CONCLUSIONS Our tool can be used with reliable results to test palpation course achievements with 200 and 300 sheets of paper. Further refinements of this tool will be needed to use it in complex assessment designs for the evaluation of more sophisticated palpatory skills in postgraduate medical settings.
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Affiliation(s)
- Rainer Kamp
- Academy of Medical Education of the Medical Council Westphalia-Lippe, Ärztekammer Westfalen-Lippe and Kassenärztliche Vereinigung Westfalen-Lippe, Münster, Germany
| | - Andreas Möltner
- Ruprecht-Karls-University, Center of Excellence for Assessment in Medicine – Baden Württemberg, Heidelberg, Germany
| | - Sigrid Harendza
- III. Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Universitätsklinikum Hamburg-Eppendorf, III. Medizinische Klinik Martinistr. 52, 20246 Hamburg, Germany
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Yeap YL. Prospective Comparison of Ultrasound-Guided Versus Palpation Techniques for Arterial Line Placement by Residents in a Teaching Institution. J Grad Med Educ 2019; 11:177-181. [PMID: 31024649 PMCID: PMC6476102 DOI: 10.4300/jgme-d-18-00592.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 11/19/2018] [Accepted: 01/16/2019] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Arterial line insertion is traditionally done by blind palpation. Residents may need multiple attempts for successful insertion, leading to longer procedure times and many failed attempts. OBJECTIVE We hypothesized that ultrasound guidance (USG) would be faster and more successful than traditional blind palpation (TBP) for radial artery line placement by residents. METHODS Patients undergoing elective surgery requiring a radial arterial line were randomized to either the USG or TBP groups. Exclusion criteria included a need for arterial line placement in an awake patient, emergent surgery, or American Society of Anesthesiologists (ASA) physical status class VI. After the induction of anesthesia, a postgraduate year 3 (PGY-3) or PGY-4 anesthesia resident placed an arterial line by either USG or TBP. RESULTS A total of 412 patients and 85 of 106 residents (80%) in the training program were included. The 2 groups were similar with respect to sex, weight, height, ASA class, baseline systolic blood pressure, and baseline heart rate. USG was faster than TBP (mean times 171.1 ± 16.7 seconds versus 243.6 ± 23.5 seconds, P = .012), required fewer attempts (mean 1.78 ± 0.11 versus 2.48 ± 0.15, P = .035), and had an improved success rate (96% versus 90%, P = .012). CONCLUSIONS We found that residents using USG in an academic institution resulted in significantly faster placement of the arterial lines, fewer attempts, and fewer catheters used.
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Moore A, Aden JK, Curtis R, Umar MA. A Comparison of the Laryngeal Handshake Method Versus the Traditional Index Finger Palpation Method in Identifying the Cricothyroid Membrane, When Performed by Combat Medic Trainees. J Spec Oper Med 2019; 19:71-75. [PMID: 31539436 DOI: 10.55460/r68t-d9ib] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/01/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND The laryngeal handshake method (LHM) may be a reliable standardized method to quickly and accurately identify the cricothyroid membrane (CTM) when performing an emergency surgical airway (ESA). However, there is currently minimal available literature evaluating the method. Furthermore, no previous CTM localization studies have focused on success rates of military prehospital providers. This study was conducted with the goal of answering the question: Which method is superior, the LHM or the traditional method (TM), for identifying anatomical landmarks in a timely manner when performed by US Army combat medic trainees? METHODS This prospective randomized crossover study was conducted at Ft Sam Houston, TX, in September 2018. Two Army medic trainees with similar body habitus volunteered as subjects, and the upper and lower borders and midline of their CTMs were identified by ultrasound (US). The participants were also recruited from the medic trainee population. After receiving initial training on the LHM and refresher training on the TM, participants were asked to localize the CTMs of each subject with one method per subject. Success was defined as a marking within the borders and 5mm of midline within 2 minutes. RESULTS Thirty-two combat medic trainees participated; 78% (n = 25) successfully localized the CTM using the TM versus 41% (n = 13) using the LHM (p = .002). CONCLUSION Findings of this study support that at present the TM is a superior method for successful localization of the CTM when performed by Army combat medic trainees.
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Allen WM, Wijesinghe P, Dessauvagie BF, Latham B, Saunders CM, Kennedy BF. Optical palpation for the visualization of tumor in human breast tissue. J Biophotonics 2019; 12:e201800180. [PMID: 30054979 DOI: 10.1002/jbio.201800180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/20/2018] [Accepted: 07/26/2018] [Indexed: 05/17/2023]
Abstract
Accurate and effective removal of tumor in one operation is an important goal of breast-conserving surgery. However, it is not always achieved. Surgeons often utilize manual palpation to assess the surgical margin and/or the breast cavity. Manual palpation, however, is subjective and has relatively low resolution. Here, we investigate a tactile imaging technique, optical palpation, for the visualization of tumor. Optical palpation generates maps of the stress at the surface of tissue under static preload compression. Stress is evaluated by measuring the deformation of a contacting thin compliant layer with known mechanical properties using optical coherence tomography. In this study, optical palpation is performed on 34 freshly excised human breast specimens. Wide field-of-view (up to ~46 × 46 mm) stress images, optical palpograms, are presented from four representative specimens, demonstrating the capability of optical palpation to visualize tumor. Median stress reported for adipose tissue, 4 kPa, and benign dense tissue, 8 kPa, is significantly lower than for invasive tumor, 60 kPa. In addition, we demonstrate that optical palpation provides contrast consistent with a related optical technique, quantitative micro-elastography. This study demonstrates that optical palpation holds promise for visualization of tumor in breast-conserving surgery.
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Affiliation(s)
- Wes M Allen
- BRITElab, Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands and Centre for Medical Research, The University of Western Australia, Perth, Western Australia, Australia
- Department of Electrical, Electronic & Computer Engineering, School of Engineering, The University of Western Australia, Perth, Western Australia, Australia
| | - Philip Wijesinghe
- BRITElab, Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands and Centre for Medical Research, The University of Western Australia, Perth, Western Australia, Australia
- Department of Electrical, Electronic & Computer Engineering, School of Engineering, The University of Western Australia, Perth, Western Australia, Australia
| | - Benjamin F Dessauvagie
- PathWest, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
- Division of Pathology and Laboratory Medicine, Medical School, The University of Western Australia, Perth, Western Australia, Australia
| | - Bruce Latham
- PathWest, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Christobel M Saunders
- Division of Surgery, Medical School, The University of Western Australia, Perth, Western Australia, Australia
- Breast Centre, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
- Breast Clinic, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Brendan F Kennedy
- BRITElab, Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands and Centre for Medical Research, The University of Western Australia, Perth, Western Australia, Australia
- Department of Electrical, Electronic & Computer Engineering, School of Engineering, The University of Western Australia, Perth, Western Australia, Australia
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Konieczka C, Gibson C, Russett L, Dlot L, MacDermid J, Watson L, Sadi J. What is the reliability of clinical measurement tests for humeral head position? A systematic review. J Hand Ther 2018; 30:420-431. [PMID: 28802538 DOI: 10.1016/j.jht.2017.06.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 04/24/2017] [Accepted: 06/15/2017] [Indexed: 02/03/2023]
Abstract
STUDY DESIGN Systematic review. INTRODUCTION Physiotherapists routinely assess the position of the humeral head (HH) in patients with shoulder pain. PURPOSE OF THE STUDY To conduct a systematic review to determine the quality and content of studies that evaluated the reliability of clinical measurement methods for assessing the HH position. METHODS Five databases and gray literature were searched for studies fitting the eligibility criteria. After abstract and full-text review, the included studies were appraised using the Quality Appraisal of Reliability Studies checklist. Articles were considered of high quality if 8 was achieved on the checklist, and the overall quality of evidence was classified using prespecified criteria. Multiple raters extracted and performed quality ratings; a consensus process was used to finalize the reliability data that were synthesized and presented in a narrative synthesis. Reliability was classified as excellent if the intracorrelation coefficients or intercorrelation coefficients (ICCs) reported exceeded 0.75. RESULTS Fifteen studies on the reliability of ultrasound (US) and 3 studies on palpation were included. The methodologic quality was moderate in 17 of 18 studies. The intrarater reliability for all studies was excellent (ICC, 0.76-0.99) with the exception of the 90° abduction in internal rotation position (ICC, 0.48) for palpation. The inter-rater reliability tended to be lower (ICC, 0.48-0.68) for palpation and higher (ICC, 0.66-0.99) for US. Physiotherapists demonstrated excellent intrarater reliability across different levels of training in ultrasonography. DISCUSSION Our study found a moderate overall level of evidence to support the use of US for assessing HH position in symptomatic or asymptomatic subjects. CONCLUSION A moderate overall level of evidence exists for the use of US to reliably assess the HH position. Limited research supports the methods used for palpation within a clinical setting. LEVEL OF EVIDENCE 2a.
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Affiliation(s)
- Christine Konieczka
- Faculty of Health Science, School of Physical Therapy, Western University, Elborn College, London, Ontario, Canada
| | - Christine Gibson
- Faculty of Health Science, School of Physical Therapy, Western University, Elborn College, London, Ontario, Canada
| | - Leeann Russett
- Faculty of Health Science, School of Physical Therapy, Western University, Elborn College, London, Ontario, Canada
| | - Leah Dlot
- Faculty of Health Science, School of Physical Therapy, Western University, Elborn College, London, Ontario, Canada
| | - Joy MacDermid
- Faculty of Health Science, School of Physical Therapy, Western University, Elborn College, London, Ontario, Canada
| | - Lyn Watson
- LifeCare, Prahran Sports Medicine Centre, Prahran, Victoria, Australia
| | - Jackie Sadi
- Faculty of Health Science, School of Physical Therapy, Western University, Elborn College, London, Ontario, Canada.
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Mehta P, Rand EB, Visco CJ, Wyss J. Resident Accuracy of Musculoskeletal Palpation With Ultrasound Verification. J Ultrasound Med 2018; 37:1719-1724. [PMID: 29280168 DOI: 10.1002/jum.14523] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 10/02/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVES The purpose of this observational study was to determine the accuracy of musculoskeletal palpation of the medial joint line of the knee, medial patellar tendon, and posterior tibialis tendon verified by ultrasound imaging among physical medicine and rehabilitation residents. METHODS Eighteen physical medicine and rehabilitation resident physicians at a single specialized institution were asked to identify the medial joint line of the knee, medial patellar tendon, and posterior tibialis tendon on 2 separate standardized patient models during a single data collection. They were asked to place a paper clip flat on the surface of the skin parallel to the specified anatomic structure. A high-frequency linear array transducer was used to identify whether the paper clip was correctly placed over the structures and to measure the distance from the intended structure. RESULTS The accuracy rates for palpation of the medial joint line, medial patellar tendon, and posterior tibialis tendon in both models were 14%, 36%, and 28%, respectively, for all levels of residents. Accuracy rates for all of the structures by level of education were 19%, 29%, and 31% for postgraduate years 2, 3, and 4. Median confidence scores were 3.75, 3.5, and 2 for the medial joint line, medial patellar tendon, and posterior tibialis tendon. CONCLUSIONS This study highlights the level of inaccuracy of musculoskeletal palpation skills and draws further attention to an area of much-needed improvement in our musculoskeletal residency training programs. Ultrasound imaging is an effective noninvasive method for providing swift feedback to medical students and residents and thereby reduce the instances of inaccurate musculoskeletal palpation.
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Affiliation(s)
- Priyesh Mehta
- Department of Physiatry, Hospital for Special Surgery, New York, New York, USA
| | - Ethan B Rand
- Department of Rehabilitation Medicine, Weill Cornell Medical Center, New York, New York, USA
| | - Christopher J Visco
- Department of Rehabilitation and Regenerative Medicine, Columbia University Medical Center, New York, New York, USA
| | - James Wyss
- Department of Physiatry, Hospital for Special Surgery, New York, New York, USA
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Dimassi K, Temessek H, Ben Amor A, Triki A. Diagnosis of fetal occiput position using transperineal ultrasound. Tunis Med 2018; 96:360-365. [PMID: 30430474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To compare Transperineal (TP) and Transabdominal (TA) ultrasound in the assessment of fetal head position during the second stage of labor. METHOD A prospective comparative Study including low risk parturients. The assessment of fetal head position was performed for each patient at full dilation. The ultrasound examination was performed by one examiner using TP technique first then TA. A routine digital vaginal examination was performed by a different examiner blinded to ultrasound findings. Considering TA as reference, the three methods were compared. RESULTS Fifty two patients were enrolled in the study group. Agreement between the clinical examination and TA ultrasound was average with Kappa index = 0.579. Agreement between TA and TP Ultrasound was good with Kappa index = 0.766. TP technique was accurate in the diagnosis of fetal head position (sensitivity =91.3%, specificity=98.38%, PPV=87.5%, NPV=98.91%). TA ultrasound was the most reliable method in case of high presentations. For lower fetal presentations, the TP approach was more relevant. CONCLUSIONS Assuming that an accurate diagnosis of fetal head position is required before any instrumental delivery where, by definition, fetal presentation is engaged, the TP ultrasound is advised. In a single time this technique provides the necessary information about the station, and the position of the fetal head.
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Talhan A, Jeon S. Programmable prostate palpation simulator using property-changing pneumatic bladder. Comput Biol Med 2018; 96:166-177. [PMID: 29597142 DOI: 10.1016/j.compbiomed.2018.03.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 03/13/2018] [Accepted: 03/14/2018] [Indexed: 01/02/2023]
Abstract
The currently available prostate palpation simulators are based on either a physical mock-up or pure virtual simulation. Both cases have their inherent limitations. The former lacks flexibility in presenting abnormalities and scenarios because of the static nature of the mock-up and has usability issues because the prostate model must be replaced in different scenarios. The latter has realism issues, particularly in haptic feedback, because of the very limited performance of haptic hardware and inaccurate haptic simulation. This paper presents a highly flexible and programmable simulator with high haptic fidelity. Our new approach is based on a pneumatic-driven, property-changing, silicone prostate mock-up that can be embedded in a human torso mannequin. The mock-up has seven pneumatically controlled, multi-layered bladder cells to mimic the stiffness, size, and location changes of nodules in the prostate. The size is controlled by inflating the bladder with positive pressure in the chamber, and a hard nodule can be generated using the particle jamming technique; the fine sand in the bladder becomes stiff when it is vacuumed. The programmable valves and system identification process enable us to precisely control the size and stiffness, which results in a simulator that can realistically generate many different diseases without replacing anything. The three most common abnormalities in a prostate are selected for demonstration, and multiple progressive stages of each abnormality are carefully designed based on medical data. A human perception experiment is performed by actual medical professionals and confirms that our simulator exhibits higher realism and usability than do the conventional simulators.
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Affiliation(s)
- Aishwari Talhan
- Department of Computer Science and Engineering, Kyung Hee University, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, Republic of Korea.
| | - Seokhee Jeon
- Department of Computer Science and Engineering, Kyung Hee University, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, Republic of Korea.
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Anantasit N, Cheeptinnakorntaworn P, Khositseth A, Lertbunrian R, Chantra M. Ultrasound Versus Traditional Palpation to Guide Radial Artery Cannulation in Critically Ill Children: A Randomized Trial. J Ultrasound Med 2017; 36:2495-2501. [PMID: 28688136 DOI: 10.1002/jum.14291] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/07/2017] [Accepted: 03/09/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVES To identify success rates for radial artery cannulation in a pediatric critical care unit using either palpation or ultrasound guidance to cannulate the radial artery. METHODS A prospective randomized comparative study of critically ill children who required invasive monitoring in a tertiary referral center was conducted. All patients were randomized by a stratified block of 4 to either ultrasound-guided or traditional palpation radial artery cannulation. The primary outcomes were the first attempt and total success rates. RESULTS Eighty-four children were enrolled, with 43 randomized to the palpation technique and 41 to the ultrasound-guided technique. Demographic data between the groups were not significantly different. The total success and first attempt rates for the ultrasound-guided group were significantly higher than those for the palpation group (success ratio, 2.03; 95% confidence interval, 1.13-3.64; P = .018; and success ratio, 4.18; 95% confidence interval, 1.57-11.14; P = .004, respectively). The median time to success for the ultrasound-guided group was significantly shorter than that for the palpation group (3.3 versus 10.4 minutes; P < .001). Cannulation complications were lower in the ultrasound-guided group than the palpation group (12.5% versus 53.3%; P < .001). CONCLUSIONS The ultrasound-guided technique could improve the success rate and allow for faster cannulation of radial artery catheterization in critically ill children.
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Affiliation(s)
- Nattachai Anantasit
- Division of Pediatric Critical Care, Department of Pediatrics, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Pimporn Cheeptinnakorntaworn
- Division of Pediatric Critical Care, Department of Pediatrics, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Anant Khositseth
- Division of Pediatric Critical Care, Department of Pediatrics, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Rojjanee Lertbunrian
- Division of Pediatric Critical Care, Department of Pediatrics, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Marut Chantra
- Division of Pediatric Critical Care, Department of Pediatrics, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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Abstract
PURPOSE Atrial fibrillation (AF) may first present as an ischemic stroke. Pulse palpation is a potential screening method for asymptomatic AF. We aimed to assess the reliability of pulse palpation by the elderly in detecting AF. MATERIALS AND METHODS After brief information and training session conducted by a nurse, 173 subjects aged ≥75 years were instructed to palpate their pulse regularly for a month. After this, their ability to distinguish sinus rhythm (SR), SR with premature ventricular contractions (PVC) and AF by pulse palpation was assessed using an anatomic human arm model programmable with various rhythms. A control group of 57 healthcare professionals received the same information but not the training. Subjects unable to find the pulse were excluded (25 (14.5%) of the elderly and none in the healthcare group). RESULTS The median age of the elderly subjects was 78.4 [3.9] years and 98 (56.6%) were women. There were no differences between the elderly and healthcare groups in detecting SR (97.3% vs. 96.5%) or SR with PVCs (74.3% vs. 71.4%), but the elderly subjects identified slow (81.8% vs. 56.1%) and fast AF (91.9% vs. 80.7%) significantly better than the healthcare group. The ability to recognize SR with PVCs by the elderly was independently predicted by previous pulse palpation experience, secondary or higher level of education and one-point increase in MMSE score, while identifying the other rhythms had no predictors. CONCLUSIONS The elderly can learn to reliably distinguish a normal rhythm after education. Pulse self-palpation may be a useful low-cost method to screen for asymptomatic AF.
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Affiliation(s)
| | | | | | - K. E. Juhani Airaksinen
- CONTACT K. E. Juhani Airaksinen Heart Centre, Turku University Hospital, PO Box 52, FIN-20521 Turku, Finland
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Kothawala A, Chandramoorthi S, Reddy NRK, Thittai AK. Spatial Compounding Technique to Obtain Rotation Elastogram: A Feasibility Study. Ultrasound Med Biol 2017; 43:1290-1301. [PMID: 28433440 DOI: 10.1016/j.ultrasmedbio.2017.01.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 12/28/2016] [Accepted: 01/31/2017] [Indexed: 06/07/2023]
Abstract
The perception of stiffness and slipperiness of a breast mass on palpation is used by physicians to assess the level of suspicion of a lesion as being malignant or benign. However, most current ultrasound elastography imaging methods provide only stiffness-related information. There is no existing approach that provides information about the local rigid body rotation undergone by only a loosely bonded, asymmetrically oriented lesion subjected to a small quasi-static compression. The inherent poor lateral resolution in ultrasound imaging poses a limitation in estimating the local rigid body rotation. Several techniques have been reported in the literature to improve the lateral resolution in ultrasound imaging, and among them is spatial compounding. In this study, we explore the feasibility of obtaining better-quality rotation elastograms with spatial compounding through simulations using Field II and experiments on tissue-mimicking phantoms. The phantom was subjected to axial compression (∼1%-2%) from the top, and the angular axial and lateral displacement estimates were obtained using a multilevel 2-D displacement tracking algorithm at different insonification angles. A rotation elastogram (RE) was obtained by taking half of the difference between the lateral gradient of the axial displacement estimates and the axial gradient of the lateral displacement estimates. Contrast-to-noise ratio was used to quantify the improvements in quality of RE. Contrast-to-noise ratio values were calculated by varying the maximum steering angle and the incremental angle, and its effects on RE quality were evaluated. Both simulation and experimental results corroborated and indicated a significant improvement in the quality of RE using compounding technique.
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Affiliation(s)
- AliArshad Kothawala
- Department of Applied Mechanics (Biomedical Engineering Group), Indian Institute of Technology, Madras, Chennai, India
| | - Sowmiya Chandramoorthi
- Department of Applied Mechanics (Biomedical Engineering Group), Indian Institute of Technology, Madras, Chennai, India
| | - N Ravi Kiran Reddy
- Department of Applied Mechanics (Biomedical Engineering Group), Indian Institute of Technology, Madras, Chennai, India
| | - Arun Kumar Thittai
- Department of Applied Mechanics (Biomedical Engineering Group), Indian Institute of Technology, Madras, Chennai, India.
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Konstantinova J, Cotugno G, Dasgupta P, Althoefer K, Nanayakkara T. Palpation force modulation strategies to identify hard regions in soft tissue organs. PLoS One 2017; 12:e0171706. [PMID: 28199349 PMCID: PMC5310901 DOI: 10.1371/journal.pone.0171706] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 01/23/2017] [Indexed: 11/21/2022] Open
Abstract
This paper presents experimental evidence for the existence of a set of unique force modulation strategies during manual soft tissue palpation to locate hard abnormalities such as tumors. We explore the active probing strategies of defined local areas and outline the role of force control. In addition, we investigate whether the applied force depends on the non-homogeneity of the soft tissue. Experimental results on manual palpation of soft silicone phantoms show that humans have a well defined force control pattern of probing that is used independently of the non-homogeneity of the soft tissue. We observed that the modulations of lateral forces are distributed around the mean frequency of 22.3 Hz. Furthermore, we found that the applied normal pressure during probing can be modeled using a second order reactive autoregressive model. These mathematical abstractions were implemented and validated for the autonomous palpation for different stiffness parameters using a robotic probe with a rigid spherical indentation tip. The results show that the autonomous robotic palpation strategy abstracted from human demonstrations is capable of not only detecting the embedded nodules, but also enhancing the stiffness perception compared to static indentation of the probe.
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Affiliation(s)
- Jelizaveta Konstantinova
- School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom
- * E-mail:
| | - Giuseppe Cotugno
- Department of Informatics, King’s College London, London, United Kingdom
| | - Prokar Dasgupta
- AMRC Centre for Transplantation, DTIMB and NIHR BRC, King’s College London, Guy’s Hospital, London, United Kingdom
| | - Kaspar Althoefer
- School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom
| | - Thrishantha Nanayakkara
- Dyson School of Engineering, Imperial College London, South Kensington Campus, London, United Kingdom
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Pagé I, Descarreaux M, Sobczak S. Development of a new palpation method using alternative landmarks for the determination of thoracic transverse processes: An in vitro study. Musculoskelet Sci Pract 2017; 27:142-149. [PMID: 27697392 DOI: 10.1016/j.math.2016.09.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 09/08/2016] [Accepted: 09/13/2016] [Indexed: 12/25/2022]
Abstract
Palpation methods (PMs) have been proposed to guide clinicians in locating the thoracic transverse processes (TTPs). However, no studies have assessed the validity of TTPs palpation or the added value of musculoskeletal ultrasound (MSU). The objectives of the present study were (1) to explore the validity of TTPs location using palpation as commonly performed by clinicians, (2) to develop an accurate and valid PM, and (3) to assess the added value of MSU. A standardized procedure was used on six cadavers. It consisted in the insertion of markers through the T3, T5, T6 and T8 TTPs and spinous processes, which were identified using palpation and MSU. First, a fresh cadaver was used to explore the validity of the common palpation method. Since poor validity was observed, one intermediate and a final PMs were tested on a total of five Thiel-embalmed specimens. A descriptive analysis was performed and agreement between MSU and the final PM was determined. The final PM led to the proper determination of all TTPs on three specimens with a mean error of 4 ± 1.8 mm in relation to the TTPs center. The coefficient of variations and root mean square errors were ≤0.15 and 0.21 mm, respectively. Bland-Altman plot showed no differences between palpation and MSU. In conclusion, this study reports the validity of a new PM using multiple landmarks to guide TTPs determination and for which MSU does not seem to add value in accuracy. These results may have important clinical implications for clinicians using palpation.
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Affiliation(s)
- Isabelle Pagé
- Département d'anatomie, Université du Québec à Trois-Rivières, 3351 boul. des Forges, CP. 500, Trois-Rivières, Québec, G9A 5H7, Canada; Groupe de Recherche sur les affections neuromusculosquelettiques (GRAN), Université du Québec à Trois-Rivières, 3351 boul. des Forges, CP. 500, Trois-Rivières, Québec, G9A 5H7, Canada.
| | - Martin Descarreaux
- Département des sciences de l'activité physique, Université du Québec à Trois-Rivières, 3351 boul. des Forges, CP. 500, Trois-Rivières, Québec, G9A 5H7, Canada; Groupe de Recherche sur les affections neuromusculosquelettiques (GRAN), Université du Québec à Trois-Rivières, 3351 boul. des Forges, CP. 500, Trois-Rivières, Québec, G9A 5H7, Canada
| | - Stéphane Sobczak
- Département d'anatomie, Université du Québec à Trois-Rivières, 3351 boul. des Forges, CP. 500, Trois-Rivières, Québec, G9A 5H7, Canada; Groupe de Recherche sur les affections neuromusculosquelettiques (GRAN), Université du Québec à Trois-Rivières, 3351 boul. des Forges, CP. 500, Trois-Rivières, Québec, G9A 5H7, Canada
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Abstract
CONTEXT The palpation of motions is at the heart of the practice of foreign-trained osteopaths. When practicing osteopathic manual therapy (care provided by foreign-trained osteopaths) in the cranial field or osteopathic cranial manipulative medicine, the palpation of small motions (several tens of micrometers) is a key process. However, to the authors' knowledge, the smallest detectable motion has not been identified. OBJECTIVE To quantify motion detection capacity by passive palpation. METHODS Participants were instructed to hold a mechanical device containing a micrometric actuator between their hands and report when they felt motion while 6 series of 27 random motions were generated by the actuator. After each series, if a participant succeeded or failed to detect motion with a confidence level of greater than 98%, the motions in the next series were set to a smaller or larger magnitude, respectively. After 6 series, the individual motion detection capacity was recorded. Statistical significance was set at P=.02. RESULTS A total of 21 participants were selected, comprising 14 osteopaths and 7 nonosteopaths. The average performance of the sample was 148 μm. Thirteen participants (62%) perceived motions of 200 μm or less, and 7 participants (33%) detected motions of 50 μm or less with bare hands. Osteopathic training did not notably affect the performance. Osteopaths were twice as likely to claim detection of nonexisting motions than to miss existing ones, whereas nonosteopaths were equally subject to both types of errors. CONCLUSION The data show human passive palpatory sensitivity to be in the range of several tens of micrometers. This range is comparable to that reported for calvarial motion (10-50 μm).
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Huelsen A, Fischer J, Hegarty J, Ashcroft A, Frampton CM, Barclay ML. The scratch test for identifying the lower liver edge is at least as accurate as percussion and is significantly more effective for young trainees-a randomised comparative trial. N Z Med J 2016; 129:53-63. [PMID: 27906919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
BACKGROUND Clinical examination of the liver requires experience to achieve accuracy. The scratch test is a simple technique to identify the lower liver edge and enhance liver palpation, and may be easier for trainees. AIM We aimed to evaluate the accuracy of the scratch test compared to percussion at different levels of medical training. METHOD Eight examiners, from trainee intern to consultant level, were randomised to scratch or percussion testing, followed by liver palpation, on 50 subjects. Later, each examiner performed the alternative test on each subject. Confidence with each test was rated 0-3 (unsuccessful-very confident). Ultrasound scan (US) was performed as a reference for liver location. RESULTS Ultrasound revealed 33/50 (66%) of livers extended below the right costal margin in the midclavicular line during quiet respiration (range 0.5-16cm). Of these, 33, 87% and 76% were identified within 2cm of the US location using scratch and percussion tests, respectively (p>0.05) for all examiners, but with significantly greater accuracy for the scratch test in young trainees (91% v 75%; p=0.016). Ability to palpate the liver was not different following either test. The training effect was assessed by comparing the accuracy results of the first 25 with the last 25 examined subjects, revealing a significant increase in accuracy with percussion from 71% to 85% (p=0.038) compared to no change with the scratch test (88% and 86%). Examiner confidence in the test result was significantly higher using the scratch test versus percussion, average confidence scores being 2.2 versus 1.8 (p<0.001), with a greater difference in the young trainee group at 2.4 versus 1.7 (p<0.001). CONCLUSION The scratch test was at least as accurate as percussion overall in identifying the lower liver edge and significantly more accurate for the young trainees. The scratch test requires less training and in addition, all examiners and especially the young trainees were significantly more confident in their findings using the scratch test.
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Affiliation(s)
- Alexander Huelsen
- Interventional Endoscopy Fellow, Gastroenterology and Hepatology Department, Princess Alexandra Hospital and School of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Jesse Fischer
- Department of Gastroenterology, Christchurch Hospital, Christchurch
| | - Justin Hegarty
- Department of Radiology, Christchurch Hospital, Christchurch
| | - Anna Ashcroft
- Research and Statistics Assistant, Department of Gastroenterology, Christchurch Hospital, Christchurch
| | | | - Murray L Barclay
- Consultant Gastroenterologist, Department of Gastroenterology, Christchurch Hospital, University of Otago, Christchurch
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Xu X, Chung Y, Brooks AD, Shih WH, Shih WY. Development of array piezoelectric fingers towards in vivo breast tumor detection. Rev Sci Instrum 2016; 87:124301. [PMID: 28040934 PMCID: PMC5148765 DOI: 10.1063/1.4971325] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 11/21/2016] [Indexed: 06/06/2023]
Abstract
We have investigated the development of a handheld 4 × 1 piezoelectric finger (PEF) array breast tumor detector system towards in vivo patient testing, particularly, on how the duration of the DC applied voltage, the depression depth of the handheld unit, and breast density affect the PEF detection sensitivity on 40 patients. The tests were blinded and carried out in four phases: with DC voltage durations 5, 3, 2, to 0.8 s corresponding to scanning a quadrant, a half, a whole breast, and both breasts within 30 min, respectively. The results showed that PEF detection sensitivity was unaffected by shortening the applied voltage duration from 5 to 0.8 s nor was it affected by increasing the depression depth from 2 to 6 mm. Over the 40 patients, PEF detected 46 of the 48 lesions (46/48)-with the smallest lesion detected being 5 mm in size. Of 28 patients (some have more than one lesion) with mammography records, PEF detected 31/33 of all lesions (94%) and 14/15 of malignant lesions (93%), while mammography detected 30/33 of all lesions (91%) and 12/15 of malignant lesions (80%), indicating that PEF could detect malignant lesions not detectable by mammography without significantly increasing false positives. PEF's detection sensitivity is also shown to be independent of breast density, suggesting that PEF could be a potential tool for detecting breast cancer in young women and women with dense breasts.
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Affiliation(s)
- Xin Xu
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - Youngsoo Chung
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - Ari D Brooks
- Department of Surgery, College of Medicine, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - Wei-Heng Shih
- Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, USA
| | - Wan Y Shih
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, USA
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Abstract
The wrist and hand form a highly complex organ that is of great importance in almost all daily activities. The hand serves as a tool and an organ of sense. Injuries of the hand and wrist as well as mechanical, neurological or systemic inflammatory changes are common. Taking a detailed history can already lead to a diagnosis. Almost all structures of the hand are easily accessible for clinical examination, i. e. inspection, palpation and clinical tests, including dynamic testing. Diagnostic imaging completes the examination procedure.
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Affiliation(s)
- H R Springorum
- Orthopädische Klinik der Universität Regensburg, Asklepios Klinikum Bad Abbach, Kaiser-Karl-V. Allee 3, 93077, Bad Abbach, Deutschland.
| | - C Baier
- Orthopädische Klinik der Universität Regensburg, Asklepios Klinikum Bad Abbach, Kaiser-Karl-V. Allee 3, 93077, Bad Abbach, Deutschland
| | - J Götz
- Orthopädische Klinik der Universität Regensburg, Asklepios Klinikum Bad Abbach, Kaiser-Karl-V. Allee 3, 93077, Bad Abbach, Deutschland
| | - T Schwarz
- Orthopädische Klinik der Universität Regensburg, Asklepios Klinikum Bad Abbach, Kaiser-Karl-V. Allee 3, 93077, Bad Abbach, Deutschland
| | - A Benditz
- Orthopädische Klinik der Universität Regensburg, Asklepios Klinikum Bad Abbach, Kaiser-Karl-V. Allee 3, 93077, Bad Abbach, Deutschland
| | - J Grifka
- Orthopädische Klinik der Universität Regensburg, Asklepios Klinikum Bad Abbach, Kaiser-Karl-V. Allee 3, 93077, Bad Abbach, Deutschland
| | - G Heers
- Orthopädische Klinik der Universität Regensburg, Asklepios Klinikum Bad Abbach, Kaiser-Karl-V. Allee 3, 93077, Bad Abbach, Deutschland
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Abstract
BACKGROUND Atrial fibrillation (AF), the most common arrhythmia in clinical practice, is a leading cause of morbidity and mortality. Screening for AF in asymptomatic patients has been proposed as a way of reducing the burden of the disease by detecting people who would benefit from prophylactic anticoagulation therapy before the onset of symptoms. However, for screening to be an effective intervention, it must improve the detection of AF and provide benefit for those detected earlier as a result of screening. OBJECTIVES This review aims to answer the following questions.Does systematic screening increase the detection of AF compared with routine practice? Which combination of screening population, strategy and test is most effective for detecting AF compared with routine practice? What safety issues and adverse events may be associated with individual screening programmes? How acceptable is the intervention to the target population? What costs are associated with systematic screening for AF? SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE (Ovid) and EMBASE (Ovid) up to 11 November 2015. We searched other relevant research databases, trials registries and websites up to December 2015. We also searched reference lists of identified studies for potentially relevant studies, and we contacted corresponding authors for information about additional published or unpublished studies that may be relevant. We applied no language restrictions. SELECTION CRITERIA Randomised controlled trials comparing screening for AF with routine practice in people 40 years of age and older were eligible. Two review authors (PM and CT) independently selected trials for inclusion. DATA COLLECTION AND ANALYSIS Two review authors (PM and CT) independently assessed risk of bias and extracted data. We used odds ratios (ORs) and 95% confidence intervals (CIs) to present results for the primary outcome, which is a dichotomous variable. As we identified only one study for inclusion, we performed no meta-analysis. We used the GRADE (Grades of Recommendation, Assessment, Development and Evaluation Working Group) method to assess the quality of the evidence and GRADEPro to create a 'Summary of findings' table. MAIN RESULTS One cluster-randomised controlled trial met the inclusion criteria for this review. This study compared systematic screening (by invitation to have an electrocardiogram (ECG)) and opportunistic screening (pulse palpation during a general practitioner (GP) consultation for any reason, followed by an ECG if pulse was irregular) versus routine practice (normal case finding on the basis of clinical presentation) in people 65 years of age or older.Results show that both systematic screening and opportunistic screening of people over 65 years of age are more effective than routine practice (OR 1.57, 95% CI 1.08 to 2.26; and OR 1.58, 95% CI 1.10 to 2.29, respectively; both moderate-quality evidence). We found no difference in the effectiveness of systematic screening and opportunistic screening (OR 0.99, 95% CI 0.72 to 1.37; low-quality evidence). A subgroup analysis found that systematic screening and opportunistic screening were more effective in men (OR 2.68, 95% CI 1.51 to 4.76; and OR 2.33, 95% CI 1.29 to 4.19, respectively) than in women (OR 0.98, 95% CI 0.59 to 1.62; and OR 1.2, 95% CI 0.74 to 1.93, respectively). No adverse events associated with screening were reported.The incremental cost per additional case detected by opportunistic screening was GBP 337, compared with GBP 1514 for systematic screening. All cost estimates were based on data from the single included trial, which was conducted in the UK between 2001 and 2003. AUTHORS' CONCLUSIONS Evidence suggests that systematic screening and opportunistic screening for AF increase the rate of detection of new cases compared with routine practice. Although these approaches have comparable effects on the overall AF diagnosis rate, the cost of systematic screening is significantly greater than the cost of opportunistic screening from the perspective of the health service provider. Few studies have investigated effects of screening in other health systems and in younger age groups; therefore, caution needs to be exercised in relation to transferability of these results beyond the setting and population in which the included study was conducted.Additional research is needed to examine the effectiveness of alternative screening strategies and to investigate the effects of the intervention on risk of stroke for screened versus non-screened populations.
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Affiliation(s)
- Patrick S Moran
- Health Technology Assessment, Health Information and Quality Authority, George's Court, George's Lane, Smithfield, Dublin, Dublin, Ireland, D7
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Volløyhaug I, Mørkved S, Salvesen Ø, Salvesen KÅ. Assessment of pelvic floor muscle contraction with palpation, perineometry and transperineal ultrasound: a cross-sectional study. Ultrasound Obstet Gynecol 2016; 47:768-73. [PMID: 26300128 DOI: 10.1002/uog.15731] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 07/24/2015] [Accepted: 08/19/2015] [Indexed: 05/25/2023]
Abstract
OBJECTIVE To study the correlation between palpation, perineometry and transperineal ultrasound for assessment of pelvic floor muscle contraction and to define a contraction scale for ultrasound measurements. METHODS This was a cross-sectional study of 608 women examined with palpation of pelvic floor muscle contraction, using the Modified Oxford Scale, and measurement of the vaginal squeeze pressure with a vaginal balloon connected to a fiber-optic microtip transducer (perineometry). Transperineal ultrasound was used for measurements of levator hiatal area and anteroposterior (AP) diameter in the plane of minimal hiatal dimensions, at rest and on contraction. The pelvic floor muscle contraction was expressed as the percentage difference between values at rest and on contraction. Spearman's rank was used to test for correlation between the different methods of assessment. RESULTS Significant correlations were found between all assessment methods (P < 0.001). Palpation correlated with perineometry (rs = 0.74) and with proportional change in hiatal area (rs = 0.67) and AP diameter (rs = 0.69) on ultrasound. Perineometry correlated with proportional change in hiatal area (rs = 0.60) and AP diameter (rs = 0.66) on ultrasound. We defined a contraction scale based on the proportional change in AP diameter. In this population, a change in AP diameter of < 7% corresponded to absence of contractions, 7-18% corresponded to weak contractions, 18-35% corresponded to normal contractions and > 35% corresponded to strong contractions. CONCLUSIONS We found moderate to strong correlation between ultrasound measurements, palpation and perineometry for assessing pelvic floor muscle contraction. The proportional change in levator hiatal AP diameter was the ultrasound measurement with strongest correlation to palpation and perineometry and formed the basis for the contraction scale for ultrasound measurements. Copyright © 2015 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- I Volløyhaug
- Department of Laboratory Medicine, Children's and Women's Health, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Obstetrics and Gynecology, Trondheim University Hospital, Trondheim, Norway
| | - S Mørkved
- Department of Public Health and General Practice, Norwegian University of Science and Technology, Trondheim, Norway
- Clinical Service, Trondheim University Hospital, Trondheim, Norway
| | - Ø Salvesen
- Department of Public Health and General Practice, Norwegian University of Science and Technology, Trondheim, Norway
| | - K Å Salvesen
- Department of Laboratory Medicine, Children's and Women's Health, Norwegian University of Science and Technology, Trondheim, Norway
- National Center for Fetal Medicine, Trondheim University Hospital, Trondheim, Norway
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Thomas A, Kimber C, Bramwell D, Jaarsma R. Improving clinical examination in acute tibial fractures by enhancing visual cues: the case for always 'cutting back' a tibial back-slab and marking the dorsalis pedis pulse. Int J Orthop Trauma Nurs 2016; 22:36-43. [PMID: 27236718 DOI: 10.1016/j.ijotn.2015.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 11/25/2015] [Accepted: 11/29/2015] [Indexed: 11/19/2022]
Abstract
Look, feel, move is a simple and widely taught sequence to be followed when undertaking a clinical examination in orthopaedics (Maher et al., 1994; McRae, 1999; Solomon et al., 2010). The splinting of an acute tibial fracture with a posterior back-slab is also common practice; with the most commonly taught design involving covering the dorsum of the foot with bandaging (Charnley, 1950; Maher et al., 1994; McRae, 1989). We investigated the effect of the visual cues provided by exposing the dorsum of the foot and marking the dorsalis pedis pulse. We used a clinical simulation in which we compared the quality of the recorded clinical examination undertaken by 30 nurses. The nurses were randomly assigned to assess a patient with either a traditional back-slab or one in which the dorsal bandaging had been cut back and the dorsalis pedis pulse marked. We found that the quality of the recorded clinical examination was significantly better in the cut-back group. Previous studies have shown that the cut-back would not alter the effectiveness of the back-slab as a splint (Zagorski et al., 1993). We conclude that all tibial back-slabs should have the bandaging on the dorsum of the foot cut back and the location of the dorsalis pedis pulse marked. This simple adaptation will improve the subsequent clinical examinations undertaken and recorded without reducing the back-slab's effectiveness as a splint.
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Affiliation(s)
- Alasdair Thomas
- Orthopaedic Department, Flinders Medical Centre, Flinders Drive, Bedford Park, SA 5042, Australia.
| | - Cheryl Kimber
- Orthopaedic Department, Flinders Medical Centre, Flinders Drive, Bedford Park, SA 5042, Australia
| | - Donald Bramwell
- International Musculoskeletal Research Institute, Department of Orthopaedic Surgery, Flinders Medical Centre, Bedford Park, SA 5042, Australia
| | - Ruurd Jaarsma
- Flinders Medical Centre, Flinders Drive, Bedford Park, SA 5042, Australia
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Giese H, Ehlers JP, Gundelach Y, Geuenich K, Dilly M. [Effects of different training methods for palpation per rectum of internal genital organs on learning success and self-evaluation of students]. Berl Munch Tierarztl Wochenschr 2016; 129:216-224. [PMID: 27344914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Large animal veterinary practice is more and more emphasizing herd-health-management. Processes to ensure and optimize economic viability of dairy farming are becoming more important in comparison to treatment of single ill animals. Amongst others, rectal palpation skills are crucial for proper fertility management, rapid and correct diagnosis of early pregnancies, and recognition of cycle or fertility problems. The aim of this study was first to objectively analyse the effectiveness of prevailing teaching methods for rectal palpation of the reproductive tract during the students' "agricultural internship." Simultaneously, the effectiveness of the use of two teaching simulators prior to the first hands-on experience with live animals was compared with proving just theoretical instruction. The results showed that students acted with more confidence when they were trained in groups of three to five. In particular, the subjective as well as the objective training success was greater for those students, who trained with a simulator (Haptic Cow®, Breed'n Betsy®) than for those who only had theoretical training. Furthermore simulator training resulted in a more realistic student assessment of performance, as well as in a better understanding of where reproductive structures were located (cervix, uterus) in live animals. No significant difference in effect of training was found between the different simulators used here. The results of this study suggest that it is in the interest, not only of students but also of the animals, that simulator training occurs before exercises are performed on living animals.
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Tangwiwat S, Pankla W, Rushatamukayanunt P, Waitayawinyu P, Soontrakom T, Jirakulsawat A. Comparing the Success Rate of Radial Artery Cannulation under Ultrasound Guidance and Palpation Technique in Adults. J Med Assoc Thai 2016; 99:505-510. [PMID: 27501604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
BACKGROUND Previous studies have shown ultrasound guidance (USG)for arterial cannulation being advantageous compared to palpation technique, but little is known about its performance by novices. OBJECTIVE This study was to compare the utility of USG radial artery cannulation with palpation technique in terms of success rate, real-time to placement, number of attempts and complications. MATERIAL AND METHOD After IRB approval, a randomized prospective study was performed November 2009-October 2010. Ten third-year residents, having performed USG vascular catheterization as yet less than 3 times, were coached on the pork-phantom during a workshop for real time ultrasound-guided vascular access. For the study patients were randomized to US-guided technique (US-group) and palpation (P-group); ten patients for each resident. RESULTS One hundred adult patients undergoing neurosurgery were enrolled. There were no statistically significant differences between US-group vs. P-group in success rate (78% vs. 82%; p = 0.62), time to success (60 (12.8, 547.0) vs. 52 (6.9, 639.0) sec; p = 0.22), and number of attempts (1 (1, 4) vs. 1 (1, 3); p = 0.79). Most common complication was puncture hematoma (US-group 26% vs. P-group 24%; p = 0.82). Success was defined as no change in catheterization site, performer and technique. CONCLUSION Regarding success rate, attended time, or number of attempts for radial arterial cannulation, we did not find any benefit of ultrasound guidance compared to palpation technique. Our findings were not in accordance to other trials. However, we have to consider operators in our study being in experienced in ultrasound-guided procedures but not in palpation techniques.
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Abstract
BACKGROUND Many women undergoing an assisted reproductive technology (ART) cycle will not achieve a live birth. Failure at the embryo transfer stage may be due to lack of good-quality embryo/s, lack of uterine receptivity, or the transfer technique itself. Numerous methods, including the use of ultrasound guidance for proper catheter placement in the endometrial cavity, have been suggested as more effective techniques of embryo transfer. This review evaluates the efficacy of ultrasound-guided embryo transfer (UGET) compared with 'clinical touch' (CTET), which is the traditional method of embryo transfer and relies on the clinician's tactile senses to judge when the transfer catheter is in the correct position. OBJECTIVES To determine whether ultrasound guidance compared with clinical touch improves pregnancy outcomes in women undergoing embryo transfer during ART cycles. SEARCH METHODS For the 2016 update of this review, we ran updated searches in the Cochrane Gynaecology and Fertility Group trials register (May 2015), the Cochrane Central Register of Controlled Trials (the Cochrane Library, May 2015), MEDLINE (2009 to May 2015), and EMBASE (2009 to May 2015). We also handsearched relevant conference proceedings: American Society for Reproductive Medicine (ASRM), European Society for Human Reproduction and Embryology (ESHRE), and International Federation of Gynecology and Obstetrics (FIGO). There were no language restrictions. SELECTION CRITERIA We included only randomised controlled trials. DATA COLLECTION AND ANALYSIS Two review authors independently assessed eligibility and quality of trials and extracted data from those selected. We calculated odds ratio (OR) and 95% confidence interval (CI) for dichotomous outcomes. No outcomes were reported using continuous data. We assessed the overall quality of the evidence for the main findings using the GRADE working group methods. MAIN RESULTS This systematic review now has 21 included studies (four of which we added in the 2016 update), two studies awaiting assessment, and 47 excluded studies. In total, data for meta-analyses were available in 21 trials (n = 6218 women), of which only four reported live births.UGET was associated with an increased chance of a live birth/ongoing pregnancy compared with CTET (OR 1.47, 95% CI 1.30 to 1.65; 13 trials; n = 5859 women; I(2) = 74%; low-quality evidence). Sensitivity analysis by including only trials with low risk of selection bias or by using a random-effects model did not alter the effect. We estimate that for women with a chance of a live birth/ongoing pregnancy of 23% using CTET, this would increase to between 28% and 33% using UGET. We considered the quality of the evidence using GRADE methodology to be low.UGET was associated with an increase in the chance of a clinical pregnancy (OR 1.31, 95% CI 1.17 to 1.45; 20 trials; n = 6711 women; I(2) = 42%; moderate-quality evidence). We identified no differences between groups for the incidence of adverse events including multiple pregnancy, ectopic pregnancy, or miscarriage. These events were relatively rare, and sample sizes limited the ability to detect such differences. AUTHORS' CONCLUSIONS The evidence suggests ultrasound guidance improves the chance of live birth/ongoing and clinical pregnancies compared with clinical touch, without increasing the chance of multiple pregnancy, ectopic pregnancy, or miscarriage. Methodological limitations included: only four studies reporting details of both computerised randomisation techniques and adequate allocation concealment, only four studies reported on the outcome of live birth, and none of the nine studies that reported on ongoing pregnancy reported on live birth, suggesting possible reporting bias. Adequate reporting of randomisation and allocation concealment will improve the quality of future studies. The primary outcome measure of future studies should be the reporting of live births per woman randomised.
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Affiliation(s)
- Julie Brown
- Liggins Institute, The University of Auckland, Park Rd, Grafton, Auckland, New Zealand, 1142
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Dobson CM, Stringfellow EA, Banks ME. Lymph-Node Palpation--No Laughing Matter. N Engl J Med 2016; 374:996-7. [PMID: 26962744 DOI: 10.1056/nejmc1514211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Zhang S, Zhu J, Zhang X, He J, Li J. Assessment of the Stiffness of Major Salivary Glands in Primary Sjögren's Syndrome through Quantitative Acoustic Radiation Force Impulse Imaging. Ultrasound Med Biol 2016; 42:645-653. [PMID: 26715188 DOI: 10.1016/j.ultrasmedbio.2015.11.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 11/03/2015] [Accepted: 11/09/2015] [Indexed: 06/05/2023]
Abstract
The purpose of the study described here was to evaluate salivary gland stiffness in primary Sjögren's syndrome (pSS) via acoustic radiation force impulse imaging, including Virtual Touch tissue quantification (VTQ) and Virtual Touch tissue imaging quantification (VTIQ). Twenty-one patients with pSS and 11 healthy patients were included, and the paired parotid and submandibular glands of all of the patients were examined using VTQ and VTIQ. Differences between the two groups were compared with independent and paired t-tests. The VTQ value for the parotid in the pSS group was significantly higher than that obtained for the control group (1.33 ± 0.22 and 1.18 ± 0.04 m/s, respectively, p < 0.01). The VTIQ values for the parotid and submandibular gland were both significantly higher in the pSS group than in the control group (p < 0.05). In the pSS group, a positive correlation was observed between the VTQ and VTIQ results for the parotid and submandibular glands. In summary, the stiffness of the major salivary glands in patients with pSS was increased compared with that of patients with normal glands. This finding indicates that VTQ and VTIQ imaging may be valuable adjuncts to gray-scale ultrasonography for the clinical diagnosis of pSS.
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Affiliation(s)
- Shanshan Zhang
- Department of Ultrasound, Peking University People's Hospital, Beijing, China
| | - Jiaan Zhu
- Department of Ultrasound, Peking University People's Hospital, Beijing, China.
| | - Xia Zhang
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China
| | - Jing He
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China
| | - Jianguo Li
- Department of Ultrasound, Peking University People's Hospital, Beijing, China
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Cheng KL, Choi YJ, Shim WH, Lee JH, Baek JH. Virtual Touch Tissue Imaging Quantification Shear Wave Elastography: Prospective Assessment of Cervical Lymph Nodes. Ultrasound Med Biol 2016; 42:378-386. [PMID: 26553206 DOI: 10.1016/j.ultrasmedbio.2015.10.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 09/16/2015] [Accepted: 10/05/2015] [Indexed: 06/05/2023]
Abstract
The goal of this study was to prospectively evaluate the diagnostic performance of Virtual Touch tissue imaging quantification (VTIQ) shear wave elastography in the discrimination of benign and malignant cervical lymph nodes in routine clinical practice. Shear wave velocity was analyzed using VTIQ in 100 patients with 100 histologically proven cervical lymph nodes. Diagnostic performance was evaluated using receiver operating characteristic curve analysis and leave-one-out cross-validation. Agreement between measurements was assessed with intra-class correlation coefficients. The mean shear wave velocity was significantly higher in metastatic lymphadenopathy (4.46 ± 1.46 m/s) than in benign lymphadenopathy (2.71 ± 0.85 m/s) (p < 0.001) at a cutoff level of 3.34 m/s. The cross-validated accuracy, sensitivity and specificity were 77%, 78.9% and 74.4%, respectively. Agreement of measurements with VTIQ was excellent (intra-class correlation coefficient = 0.961). VTIQ shear wave elastography may be a feasible quantitative imaging method for differentiating benign and malignant cervical lymph nodes.
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Affiliation(s)
- Kai Lun Cheng
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea; Department of Medical Imaging, Chung Shan Medical University Hospital, Taichung, Taiwan; School of Medical Imaging and Radiological Sciences, Chung Shan Medical University, Taichung, Taiwan; Department of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Young Jun Choi
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
| | - Woo Hyun Shim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Jeong Hyun Lee
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Jung Hwan Baek
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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