Ep.We.1001Name That Tune - Acccuracy of Interpreting Hand-Held Doppler Audio Signals in the Assessment of Peripheral Arterial Circulation

2021 ◽  
Vol 108 (Supplement_7) ◽  
Author(s):  
Mohamad Kamarizan ◽  
Anthony Da Silva
Keyword(s):  
District General Hospital ◽  
Wave Form ◽  
Audio Signals ◽  
Single Centre ◽  
Arterial Circulation ◽  
Doppler Signals ◽  
Improve Accuracy ◽  
The Mean ◽  
Peripheral Arterial ◽  
Single Blind

Abstract Aims Interpretation of Doppler audio signals among non-podiatrist has not been thoroughly investigated. This study analyses the accuracy of interpretation of Doppler audio signals among clinicians. Methods A single-centre prospective single blind study was used. Clinicians in the vascular department and with prior vascular experience in a district general hospital participated in interpreting 15 12-second Doppler audio signals (5 monophasic, 5 biphasic and 5 triphasic) into either ‘monophasic’, ‘biphasic’ and ‘triphasic’ using a Huntleigh’s Dopplex DMXTM digital hand-held Doppler ultrasound with visual waveform display covered. After all the audio signals were graded, the waveforms of each doppler signals are shown on the hand-held doppler display to reveal the correct responds. Results 8 clinicians were involved; 5 had less than 6 months of vascular experience. Out of 15 audio signals, the mean number correct grading of signals was 10.1. There is no difference in number of correct grading of the 3 waveforms (monophasic 3.5 out of 5, biphasic 3.25 out of 5, triphasic 3.5 out of 5). There is also no difference in responses between clinicians with less than 6 months and more than 6 months of vascular experience (p = 0.82). Conclusions There is a need for further ongoing education among clinicians in the use of hand held Doppler and interpretation of its audio signals. Reliability of Doppler examination in vascular assessment is also in contention, and further studies are required. The use of digital hand-held Doppler with visual wave form display will significantly improve accuracy of interpretation

scholarly journals Management of wound infection after appendectomy: are parenteral antibiotics useful?

2021 ◽  
Vol 8 (4-5) ◽  
pp. 638-644
Author(s):  
B. Harahsheh ◽  
B. Hiyasat ◽  
A. Abulail ◽  
M. Al Basheer
Keyword(s):  
Povidone Iodine ◽  
Perforated Appendicitis ◽  
Length Of Hospital Stay ◽  
District General Hospital ◽  
Antibiotic Use ◽  
Wound Infections ◽  
Perforated Appendix ◽  
The Mean ◽  
To Receive ◽  
Single Blind

This study investigated the use of antibiotics in the treatment of wound infections after appendectomy. The subjects were 72 patients with post-operative wound infections at a district general hospital in Jordan. All patients received daily antiseptic dressings with povidone-iodine 10% in alcohol. The patients were randomized in a single-blind trial to receive either no antibiotics or parenteral antibiotics metronidazole and cefoxitin. There was no significant effect of antibiotic use in patients with early inflamed or severely inflamed appendicitis. However, for patients with perforated appendicitis the mean length of hospital stay and the mean frequency of change of dressings were significantly reduced. We conclude that antibiotics do not offer any advantage in post-appendectomy wound infections except for cases of perforated appendix

scholarly journals Emergency Peripartum Hysterectomies at a District General Hospital in United Kingdom: 10-Year Review of Practice

Scientifica ◽  
2016 ◽  
Vol 2016 ◽  
pp. 1-4
Author(s):  
J. Chester ◽  
P. Sidhu ◽  
S. Sharma ◽  
F. Israfil-Bayli
Keyword(s):  
Maternal Age ◽  
District Hospital ◽  
District General Hospital ◽  
Placenta Praevia ◽  
Uterine Atony ◽  
Single Centre ◽  
Peripartum Hysterectomy ◽  
Obstetric Emergency ◽  
The Mean ◽  
Robust Systems

Peripartum haemorrhage is an obstetric emergency which requires effective and timely management. A retrospective analysis was conducted at a single centre district hospital, over a 10-year period to describe factors that would lead to a peripartum hysterectomy. We sought to establish intraoperative and postoperative risks and review outcomes and complications associated with the procedure. A total of 29 cases (incidence 0.8 per 1000) were reviewed over 2001–2011. The mean parity was 1.8 and the mean maternal age was 33 years. Uterine atony was the most common indication for hysterectomy (12/29) followed by placenta praevia and accreta (4/29 and 5/29 cases, resp.). The commonest postoperative complications were sepsis and paralytic ileus. EPH most commonly occurs due to uterine atony but remains difficult to predict. Hospitals should continue to have robust systems and the necessary resources available to perform EPH where clinically indicated.

High tolerance of progressive elastic compression in peripheral arterial disease

VASA ◽  
2019 ◽  
Vol 48 (5) ◽  
pp. 413-417 ◽  
Author(s):  
Serge Couzan ◽  
Jean-François Pouget ◽  
Claire Le Hello ◽  
Céline Chapelle ◽  
Silvy Laporte ◽  
...  
Keyword(s):  
Venous Insufficiency ◽  
Ankle Brachial Index ◽  
Arterial Disease ◽  
Return Flow ◽  
High Tolerance ◽  
Compression Stockings ◽  
Short Term ◽  
Poor Tolerance ◽  
The Mean ◽  
Peripheral Arterial

Summary. Background: Theoretically progressive compression stockings, which produce a higher compression at the calf than at the ankle level, improve venous return flow without exacerbating peripheral arterial insufficiency (PAD). We aimed to evaluate the short-term tolerance of elastic progressive compression stockings on peripheral arterial vascularisation in patients with symptomatic PAD and associated mild venous insufficiency. Patients and methods: Monocentric, prospective, open pilot study of 18 patients (acceptability study, 6 x 6 plan) evaluating the short-term tolerance of progressive compression stockings (18 ± 2 mmHg at calf and 8 ± 2 mmHg at ankle level) in patients with PAD (ankle brachial index ABI > 0.60 < 0.75) and chronic venous insufficiency (C1s–C4 stages of the CEAP classification). Day 15 tolerance was evaluated by a composite primary criteria comprising: no decrease > 15 % of ABI on each side, no decrease > 15 % of toe brachial index (TBI) on each side and no decrease > 25 % of the number of active plantar flexions performed while standing. Results: The proportion of men was 77.8 %, mean age was 77.3 ± 7.5 years and no patient were diabetic. At inclusion, the mean low ABI was 0.60 ± 0.04 and the mean high ABI was 0.77 ± 0.18. The mean low TBI was 0.32 ± 0.09 and the mean high TBI 0.46 ± 0.15. The mean number of active standing plantar flexions was 33.0 ± 5.0. The majority of the patients were classified in CEAP C2s and C3 classes (class 2: 16.7 %, class C2s: 27.8 %, class C3: 44.4 %, class C4: 5.6 % and class C4s: 5.6 %). Poor tolerance occurred in no patient. By day 30, no patient had worsening of their arterial and venous symptoms. No adverse events occurred during the study. Conclusions: These results suggest a high tolerance of progressive elastic stockings (18 ± 2 mmHg at calf and 8 ± 2 mmHg at ankle level) in symptomatic PAD.

Ankle Brachial Pressure Index and compression application: Review summary

2019 ◽  
Vol 27 (2) ◽  
pp. 74-77
Author(s):  
Victoria Team ◽  
Georgina Gethin ◽  
John D Ivory ◽  
Kimberley Crawford ◽  
Ayoub Bouguettaya ◽  
...  
Keyword(s):  
Content Analysis ◽  
Clinical Practice ◽  
Venous Insufficiency ◽  
Arterial Disease ◽  
Leg Ulcers ◽  
Current Clinical Practice ◽  
Ankle Brachial Pressure Index ◽  
Arterial Circulation ◽  
Pressure Index ◽  
Peripheral Arterial

Venous leg ulcers (VLUs) are a significant complication amongst persons with chronic venous insufficiency (CVI) that frequently follow a cycle of healing and recurrence. Current clinical practice guidelines (CPGs) recommend applying below knee compression to improve VLU healing. Compression could be applied if the Ankle Brachial Pressure Index (ABPI) rules out significant arterial disease, as sufficient peripheral arterial circulation is necessary to ensure safe compression use. We conducted a content analysis of 13 global CPGs on the accuracy of recommendations related to ABPI and compression application. Eight CPGs indicated that compression is recommended when the ABPI is between 0.8 and 1.2 mmHg. However, this review found there is disagreement between 13 global VLU CPGs, with a lack of clarity on whether or not compression is indicated for patients with ABPIs between 0.6 and 0.8 mmHg. Some CPGs recommend reduced compression for treatment of VLUs, while others do not recommend any type of compression at all. This has implications for when it is safe to apply compression, and the inconsistency in evidence indicates that specialist advice may be required at levels beyond the ABPI “safe” range listed above.

Harmonic scalpel versus traditional ligation in axillary dissection for breast cancer: a retrospective multivariate analysis

2020 ◽  
Vol 99 (11) ◽  
Keyword(s):  
Breast Cancer ◽  
Axillary Dissection ◽  
Harmonic Scalpel ◽  
Breast Conserving Surgery ◽  
Seroma Formation ◽  
Nodal Involvement ◽  
Single Centre ◽  
Absorbable Material ◽  
Drain Removal ◽  
The Mean

Introduction: The aim of this pilot retrospective study is to evaluate the complication rate in patients after axillary dissection comparing preparation with harmonic scalpel vs traditional ligation technique, and to analyse risk factors for complications occurrence. Methods: 144 patients with 148 axillary dissections operated in a single centre between January 2014 and 2019 were included into the study. Axillary dissection was performed using harmonic scalpel in 73 and absorbable ligations in 70 cases. Results: Seroma formation was observed in 41 patients (56.2%) in the harmonic scalpel group and in 21 patients (30.0%) in the ligations group (p=0.003). The mean period from the surgery to drain removal was 4.0 days in the harmonic scalpel group and 3.0 days in the ligations group (p<0.001). The mean amount of the drained fluid after mastectomy was 300.9 ml in the harmonic scalpel group and 168.7 ml in the ligations group (p=0.005); after breast conserving surgery, it was 241.9 ml and 107.4 ml, respectively (p =0.023). Conclusion: In comparison with traditional ligations with absorbable material, axillary dissection using harmonic scalpel significantly increases the risk of postoperative seroma formation, prolongs the time from the surgery to drain removal, and increases the amount of drained fluid.ut any suspicion of nodal involvement, hemithyroidectomy is considered to be a sufficient procedure or the method of choice, respectively.

scholarly journals Operating Rooms efficiency: leveraging data to improve management of elective surgery

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
C Quercioli ◽  
G A Carta ◽  
G Cevenini ◽  
G Messina ◽  
N Nante ◽  
...  
Keyword(s):  
Historical Data ◽  
Elective Surgery ◽  
District General Hospital ◽  
Operating Rooms ◽  
Accurate Estimation ◽  
Surgical Time ◽  
Accurate Analysis ◽  
Management Efficiency ◽  
Scheduling Model ◽  
The Mean

Abstract Background Careful scheduling of elective surgery Operating Rooms (ORs) is crucial for their efficient use, to avoid low/over utilization and staff overtime. Accurate estimation of procedures duration is essential to improve ORs scheduling. Therefore analysis of historical data about surgical times is fundamental to ORs management. We analyzed the effect, in a real setting, of an ORs scheduling model based on estimated optimum surgical time in improving ORs efficiency and decreasing the risk of overtime. Methods We studied all the 2014-2019 elective surgery sessions (3,758 sessions, 12,449 interventions) of a district general hospital in Siena's Province, Italy. The hospital had3 ORs open 5 days/week 08:00-14:00. Surgery specialties were general surgery, orthopedics, gynecology and urology. Based on a pilot study conducted in 2016, which estimated a 5 times greater risk of having an OR overtime for sessions with a surgical time (incision-suture)&gt;200 minutes, from 2017 all the ORs were scheduled using a maximum surgical time of 200 minutes calculated summing the mean surgical times for intervention and surgeon (obtained from 2014-2016 data). We carried out multivariate logistic regression to calculate the probability of ORs overtime (of 15 and 30 minutes) for the periods 2014-2016 and 2017-2019adjusting for raw ORs utilization. Results The 2017-2019 risk of an OR overtime of 15 minutes decreased by 25% compared to the 2014-2016 period (OR = 0.75, 95%CI=0.618-0.902, p = 0.003); the risk of a OR overtime of 30 minutes decreased by 33% (OR = 0.67, 95%CI= 0.543-0.831, p &lt; 0.001). Mean raw OR utilization increase from 62% to 66% (p &lt; 0.001). Mean number of interventions per surgery sessions increased from 3.1 to 3.5 (p &lt; 0.001). Conclusions This study has shown that an analysis of historical data and an estimate of the optimal surgical time per surgical session could be helpful to avoid both a low and excessive use of the ORs and therefore to increase the efficiency of the ORs. Key messages An accurate analysis of surgical procedures duration is crucial to optimize operating room utilization. A data-based approach can improve OR management efficiency without extra resources.

scholarly journals CT perfusion in peripheral arterial disease—hemodynamic differences before and after revascularisation

2021 ◽  
Author(s):  
Patrick Veit-Haibach ◽  
Martin W. Huellner ◽  
Martin Banyai ◽  
Sebastian Mafeld ◽  
Johannes Heverhagen ◽  
...  
Keyword(s):  
Peripheral Arterial Disease ◽  
Ct Perfusion ◽  
Arterial Disease ◽  
Lower Leg ◽  
Therapy Control ◽  
Non Invasive ◽  
Before And After ◽  
Invasive Method ◽  
The Mean ◽  
Peripheral Arterial

Abstract Objectives The purpose of this study was the assessment of volumetric CT perfusion (CTP) of the lower leg musculature in patients with symptomatic peripheral arterial disease (PAD) before and after interventional revascularisation. Methods Twenty-nine consecutive patients with symptomatic PAD of the lower extremities requiring interventional revascularisation were assessed prospectively. All patients underwent a CTP scan of the lower leg, and hemodynamic and angiographic assessment, before and after intervention. Ankle-brachial pressure index (ABI) was determined. CTP parameters were calculated with a perfusion software, acting on a no outflow assumption. A sequential two-compartment model was used. Differences in CTP parameters were assessed with non-parametric tests. Results The cohort consisted of 24 subjects with an occlusion, and five with a high-grade stenosis. The mean blood flow before/after (BFpre and BFpost, respectively) was 7.42 ± 2.66 and 10.95 ± 6.64 ml/100 ml*min−1. The mean blood volume before/after (BVpre and BVpost, respectively) was 0.71 ± 0.35 and 1.25 ± 1.07 ml/100 ml. BFpost and BVpost were significantly higher than BFpre and BVpre in the treated limb (p = 0.003 and 0.02, respectively), but not in the untreated limb (p = 0.641 and 0.719, respectively). Conclusions CTP seems feasible for assessing hemodynamic differences in calf muscles before and after revascularisation in patients with symptomatic PAD. We could show that CTP parameters BF and BV are significantly increased after revascularisation of the symptomatic limb. In the future, this quantitative method might serve as a non-invasive method for surveillance and therapy control of patients with peripheral arterial disease. Key Points • CTP imaging of the lower limb in patients with symptomatic PAD seems feasible for assessing hemodynamic differences before and after revascularisation in PAD patients. • This quantitative method might serve as a non-invasive method, for surveillance and therapy control of patients with PAD.

scholarly journals The relation of anatomical distribution of symptomatic peripheral arterial disease (PAD) with HbA1c level in patients with type 2 diabetes mellitus

2021 ◽  
Vol 12 ◽  
pp. 204201882110005
Author(s):  
Nawaf J. Shatnawi ◽  
Nabil A. Al-Zoubi ◽  
Hassan M. Hawamdeh ◽  
Yousef S. Khader ◽  
Mowafeq Heis ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Peripheral Arterial Disease ◽  
Hba1c Level ◽  
Arterial Disease ◽  
Anatomical Distribution ◽  
The Mean ◽  
Peripheral Arterial

Aims: Increased level of glycated hemoglobin (HbA1c) is associated with an increased prevalence of peripheral arterial disease (PAD). This study aimed to assess the relationship between the anatomical distribution of symptomatic PAD lesions in patients with type 2 diabetes and HbA1c levels at the time of PAD diagnosis. Patients and methods: A retrospective study was conducted at King Abdullah University Hospital during the period August 2011 to December 2015. Consecutive patients with type 2 diabetes presented with symptomatic PAD confirmed by computed tomography-angiography (CTA) were included in this study. CTA images were reviewed. Relevant information including demographic data, PAD symptoms, comorbidities, HbA1c level, lipid profile, C-reactive protein and the mean platelets volume were retrieved from medical records. Results: A total of 332 patients with type 2 diabetes (255 males and 77 females) were included in this study. The mean HbA1c at the time of PAD diagnosis was 8.68% (±2.06%). The prevalence of hemodynamic relevant atherosclerotic lesions of the superficial femoral artery, popliteal artery, leg vessels, femoro-popliteal, and crural segments was significantly higher in patients with HbA1c >7.5% compared with patients with HbA1c ⩽7.5%. Conclusion: The anatomical distribution of symptomatic PAD in patients with type 2 diabetes mellitus differed significantly according to HbA1c level at the time of PAD diagnosis.

Vibratory Feeding by Nonsinusoidal Vibration—Optimum Wave Form

1985 ◽  
Vol 107 (2) ◽  
pp. 188-195 ◽  
Author(s):  
S. Okabe ◽  
Y. Kamiya ◽  
K. Tsujikado ◽  
Y. Yokoyama
Keyword(s):  
Experimental Results ◽  
Wave Form ◽  
Velocity Wave ◽  
The Mean ◽  
Straight Lines ◽  
Vibratory Conveyor ◽  
Theoretical Results ◽  
Vibratory Feeding

This paper presents the conveying velocity on a vibratory conveyor whose track is vibrated by nonsinusoidal vibration. The velocity wave form of the vibrating track is approximated by six straight lines, and five distortion factors of the wave form are defined. Considering the modes of motion of the particle, the mean conveying velocity is calculated for various conditions. Referring to these results, the optimum wave form is clarified analytically. The theoretical results show that the mean conveying velocity is considerably larger than that of ordinary feeders if the proper conveying conditions are chosen. The theoretical results are confirmed by experimental results.

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