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  1. Article: The importance of Doppler angle of insonation on differentiation between 50-69% and 70-99% carotid artery stenosis.

    Logason, K / Bärlin, T / Jonsson, M L / Boström, A / Hårdemark, H G / Karacagil, S

    European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery

    2001  Volume 21, Issue 4, Page(s) 311–313

    Abstract: Aim: to investigate the importance of Doppler angle differentiating between 50-69% and >/=70% internal carotid artery (ICA) stenosis.: Material and methods: fifty-one patients with a previous diagnosis of 50-69% ICA stenosis (n =53) were re-evaluated ...

    Abstract Aim: to investigate the importance of Doppler angle differentiating between 50-69% and >/=70% internal carotid artery (ICA) stenosis.
    Material and methods: fifty-one patients with a previous diagnosis of 50-69% ICA stenosis (n =53) were re-evaluated by duplex scanning. Spectral Doppler velocity waveforms were obtained from common carotid (CCA), ICA and external (ECA) carotid arteries with the same Doppler angle of insonation as used at the initial duplex scanning, followed by repeated measurements with a fixed 60 degrees angle of insonation.
    Results: the peak systolic velocity (PSV) in the ICA was 181+/-55 cm/s (mean+/-SD) at the second duplex scanning when the same angle of insonation (mean 46 degrees +/-9) was used as during the initial investigation. When the examination was done with a 60 degrees angle of insonation, PSV ICA was 261+/-96 cm/s (mean+/-SD). In fifteen arteries the estimated degree of ICA stenosis changed from 50-69% to 70-99% due to the application of a fixed Doppler angle of insonation at 60 degrees.
    Conclusion: the Doppler angle of insonation has a significant effect on spectral Doppler velocity measurements. It is crucial that duplex criteria are standardised with a fixed angle of insonation and that this angle is consistently used during velocity estimations.
    MeSH term(s) Carotid Artery, Internal ; Carotid Stenosis/diagnostic imaging ; Humans ; Ultrasonography, Doppler, Duplex/methods
    Language English
    Publishing date 2001-04
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1225869-6
    ISSN 1532-2165 ; 1078-5884
    ISSN (online) 1532-2165
    ISSN 1078-5884
    DOI 10.1053/ejvs.2001.1331
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2283: Show issues Location:
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    Zs.MO 381: Show issues

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  2. Article: Extremitetsartärkirurgi utan angiografi. Enklare preoperativ kartläggning med färgdoppler.

    Karacagil, S / Granbo, A / Jonsson, M L / Bergqvist, D

    Lakartidningen

    1995  Volume 92, Issue 40, Page(s) 3692–3693

    Title translation Arterial surgery of the extremities without angiography. A simpler preoperative survey with color doppler.
    MeSH term(s) Aged ; Angiography ; Arteries/diagnostic imaging ; Arteries/surgery ; Echocardiography, Doppler, Color/methods ; Female ; Humans ; Ischemia/diagnostic imaging ; Ischemia/surgery ; Leg/blood supply ; Male ; Middle Aged ; Preoperative Care/methods
    Language Swedish
    Publishing date 1995-10-04
    Publishing country Sweden
    Document type Journal Article
    ZDB-ID 391010-6
    ISSN 1652-7518 ; 0023-7205
    ISSN (online) 1652-7518
    ISSN 0023-7205
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  4. Article: A modified technique of ultrasonic triplex scanning of the lower extremity arteries.

    Karacagil, S / Granbo, A / Jonsson, M L / Almgren, B / Bergqvist, D

    Upsala journal of medical sciences

    1996  Volume 101, Issue 1, Page(s) 113–120

    Abstract: This study was undertaken to evaluate the utility of a modified technique of triplex scanning of the lower extremity arteries in 20 subjects without any clinical signs of arterial disease. The distal aorta and iliac arteries were examined with the ... ...

    Abstract This study was undertaken to evaluate the utility of a modified technique of triplex scanning of the lower extremity arteries in 20 subjects without any clinical signs of arterial disease. The distal aorta and iliac arteries were examined with the subject in supine position and lying slightly on the opposite side. By moderate compression of the probe towards the psoas muscle and directing it over the iliac arteries with slight medial retraction of the abdomen, satisfactory visualization of the common and external arteries with 7.5 MHz high resolution imaging and a 5.6 MHz doppler probe were obtained in 56 of 80 segments (70%). In obese individuals it was necessary to use 5 MHz probe for satisfactory scanning of the aortic bifurcation and common iliac arteries. The distal superficial femoral, popliteal and tibioperoneal trunk segments were examined with the patient prone and the knee slightly flexed. Peak systolic, early diastolic reverse and late diastolic forward flow velocities were studied together with measurement of the arterial diemeters, which demonstrated wide variations. This study suggests that satisfactory scanning of the iliac and femoropopliteal arteries with the described technique can be achieved in the majority of subjects with a superficial high resolution probe. The combination of 7.5 MHz two-dimensional imaging with a 5.6 MHz pulsed wave Doppler probe offers optimal information of these arteries in nonobese individuals.
    MeSH term(s) Adult ; Aged ; Aorta/diagnostic imaging ; Echocardiography, Doppler, Color/methods ; Female ; Femoral Artery/diagnostic imaging ; Humans ; Iliac Artery/diagnostic imaging ; Leg/blood supply ; Leg/diagnostic imaging ; Male ; Middle Aged ; Popliteal Artery/diagnostic imaging ; Tibial Arteries/diagnostic imaging ; Ultrasonography, Doppler, Duplex/methods
    Language English
    Publishing date 1996
    Publishing country England
    Document type Journal Article
    ZDB-ID 183949-4
    ISSN 0300-9734
    ISSN 0300-9734
    DOI 10.3109/03009739609178917
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    Ua VI Zs.426: Show issues Location:
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  5. Article: Duplex ultrasound scanning for diagnosis of aortoiliac and femoropopliteal arterial disease.

    Karacagil, S / Lofberg, A M / Almgren, B / Granbo, A / Jonsson, M L / Lorelius, L E / Bergqvist, D

    VASA. Zeitschrift fur Gefasskrankheiten

    1994  Volume 23, Issue 4, Page(s) 325–329

    Abstract: Forty patients with symptomatic aortoiliac and/or femoropopliteal occlusive arterial disease subjected to angiography were studied with duplex ultrasonography. The duplex scanning of the aortic, iliac, femoral and popliteal segments had a sensitivity of ... ...

    Abstract Forty patients with symptomatic aortoiliac and/or femoropopliteal occlusive arterial disease subjected to angiography were studied with duplex ultrasonography. The duplex scanning of the aortic, iliac, femoral and popliteal segments had a sensitivity of 93% in detecting significant stenoses and a specificity of 91%. The positive and negative predictive values were 75% and 98%, respectively. The sensitivity was relatively low in low-flow segments distal to total occlusions especially in patients with severe iliac disease and multiple distal femoropopliteal lesions. The results demonstrate the reliability of duplex scanning in detecting aortoiliac and femoropopliteal lesions.
    MeSH term(s) Aorta, Abdominal/diagnostic imaging ; Arterial Occlusive Diseases/diagnostic imaging ; Blood Flow Velocity/physiology ; Femoral Artery/diagnostic imaging ; Humans ; Iliac Artery/diagnostic imaging ; Intermittent Claudication/diagnostic imaging ; Ischemia/diagnostic imaging ; Leg/blood supply ; Popliteal Artery/diagnostic imaging ; Prospective Studies ; Ultrasonography, Doppler, Duplex
    Language English
    Publishing date 1994
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 120977-2
    ISSN 1664-2872 ; 0301-1526
    ISSN (online) 1664-2872
    ISSN 0301-1526
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    Zs.A 808: Show issues Location:
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  6. Article ; Online: Mortality and pulmonary complications in patients undergoing surgery with perioperative SARS-CoV-2 infection

    Nepogodiev D. / Bhangu A. / Glasbey J.C. / Li E. / Omar O.M. / Simoes J.F. / Abbott T.E. / Alser O. / Arnaud A.P. / Bankhead-Kendall B.K. / Breen K.A. / Cunha M.F. / Davidson G.H. / Di Saverio S. / Gallo G. / Griffiths E.A. / Gujjuri R.R. / Hutchinson P.J. / Kaafarani H.M. /
    Lederhuber H. / Loffler M.W. / Mashbari H.N. / Minaya-Bravo A. / Morton D.G. / Moszkowicz D. / Pata F. / Tsoulfas G. / Venn M.L. / Cox D. / Roslani A.C. / Alakaloko F. / de Vries J.-P.P. / Aaraj M.A. / Abbott S.J. / Abdalla M.O. / Abdelaal A.S. / Ademuyiwa A.O. / Aherne T.M. / Ali O.M. / Alkadeeki G.Z. / Almeida A.C. / Alrahawy M.M. / Ambler G.K. / Alameer E. / Andreani S.M. / De Andres-Asenjo B. / Antonanzas L.L. / Aoun S.G. / Ashoush F.M. / Augestad K.M. / Avellana R.B. / Ayeni F.A. / Ayorinde J.O. / Babu B.H. / Baig M.M. / Bajomo O.M. / Baker O.J. / Baker M.P. / Baldwin A.J. / Ban V.S. / Baron R.D. / Barranquero A.G. / Barry C.P. / DI Bartolomeo A. / Bass G.A. / Bath M.F. / Batjer H.H. / Beamish A.J. / Belgaumkar A.P. / Bence M.N. / Benson R.A. / Bernal-Sprekelsen J.C. / Bhama A.R. / Bhavaraju A.V. / Biffl W.L. / Blundell C.M. / Boddy A.P. / Borgstein A.B. / Bosanquet D.C. / Bosch K.D. / Bouhuwaish A.E. / Bozkurt M.A. / Brathwaite C.E. / Brown B.C. / Brown O.D. / Brown A.K. / Buarque I.L. / Bueno-Canones A.D. / Bulugma M.R. / Burke J.R. / Byrne M.H. / Cagigal-Ortega E.P. / Callcut R.A. / DI Candido F. / Canova M.E. / Carlos W.J. / Caruana E.J. / Cato L.D. / Catton A.B. / Ceretti A.P. / Chase T.J. / Chiara F.D. / Chowdhury A.H. / Chung E.A. / Cicerchia P.M. / Clough E.C. / Coleman N.L. / Collins C.G. / Collins M.L. / Colonna E.T. / Comini L.V. / Coughlin P.A. / Cruzado L.F.-G. / Davidson B.R. / Davies R.J. / Davies E.J. / Davis N.F. / Dawson B.E. / Dean B.J. / Delgado M.G.-C. / Diaz J.J. / Dickson K.E. / Diez-Alonso M.M. / Dixon J.R. / Doe M.J. / Drake T.D. / Drake F.T. / Duffy J.P. / Dunne D.F. / Dunne N.J. / Duran-Munoz-Cruzado V.M. / Durst A.Z. / Eardley N.J. / Edwards J.G. / Elfallal A.H. / Elfiky M.M. / Elliott J.A. / Emile S.H. / Emslie K.M. / Endorf F.W. / Engel J.L. / Enjuto D.T. / Etchill E.W. / Evans J.P. / Fahey B.A. / Faria C.S. / Feo C.V. / Ferguson H.J. / Fernandez B.D. / Fernandez A.G. / Fernandez A.J. / Fernandez-Pacheco B.C. / Fitzgerald 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G.S. / Mateo-Sierra O. / Martinez-Perez C. / Serrano Gonzalez J. / Hernandez Bartolome M.A. / Diaz Perez D. / Gutierrez Samaniego M. / Galindo Jara P. / Sharma N. / Smart N.J. / Keller D.S.

    an international cohort study

    2020  

    Abstract: Background: The impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on postoperative recovery needs to be understood to inform clinical decision making during and after the COVID-19 pandemic. This study reports 30-day mortality and ... ...

    Abstract Background: The impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on postoperative recovery needs to be understood to inform clinical decision making during and after the COVID-19 pandemic. This study reports 30-day mortality and pulmonary complication rates in patients with perioperative SARS-CoV-2 infection. Methods: This international, multicentre, cohort study at 235 hospitals in 24 countries included all patients undergoing surgery who had SARS-CoV-2 infection confirmed within 7 days before or 30 days after surgery. The primary outcome measure was 30-day postoperative mortality and was assessed in all enrolled patients. The main secondary outcome measure was pulmonary complications, defined as pneumonia, acute respiratory distress syndrome, or unexpected postoperative ventilation. Findings: This analysis includes 1128 patients who had surgery between Jan 1 and March 31, 2020, of whom 835 (74·0%) had emergency surgery and 280 (24·8%) had elective surgery. SARS-CoV-2 infection was confirmed preoperatively in 294 (26·1%) patients. 30-day mortality was 23·8% (268 of 1128). Pulmonary complications occurred in 577 (51·2%) of 1128 patients; 30-day mortality in these patients was 38·0% (219 of 577), accounting for 81·7% (219 of 268) of all deaths. In adjusted analyses, 30-day mortality was associated with male sex (odds ratio 1·75 [95% CI 1·28–2·40], p<0·0001), age 70 years or older versus younger than 70 years (2·30 [1·65–3·22], p<0·0001), American Society of Anesthesiologists grades 3–5 versus grades 1–2 (2·35 [1·57–3·53], p<0·0001), malignant versus benign or obstetric diagnosis (1·55 [1·01–2·39], p=0·046), emergency versus elective surgery (1·67 [1·06–2·63], p=0·026), and major versus minor surgery (1·52 [1·01–2·31], p=0·047). Interpretation: Postoperative pulmonary complications occur in half of patients with perioperative SARS-CoV-2 infection and are associated with high mortality. Thresholds for surgery during the COVID-19 pandemic should be higher than during normal practice, particularly in men aged 70 years and older. Consideration should be given for postponing non-urgent procedures and promoting non-operative treatment to delay or avoid the need for surgery. Funding: National Institute for Health Research (NIHR), Association of Coloproctology of Great Britain and Ireland, Bowel and Cancer Research, Bowel Disease Research Foundation, Association of Upper Gastrointestinal Surgeons, British Association of Surgical Oncology, British Gynaecological Cancer Society, European Society of Coloproctology, NIHR Academy, Sarcoma UK, Vascular Society for Great Britain and Ireland, and Yorkshire Cancer Research.
    Keywords Adult ; Aged ; Betacoronavirus ; Coronavirus Infections ; Elective Surgical Procedures ; Emergency Medical Services ; Female ; Hospital Mortality ; Humans ; Male ; Middle Aged ; Pandemics ; Pneumonia ; Viral ; Postoperative Complications ; Respiratory Tract Diseases ; Retrospective Studies ; Surgical Procedures ; Operative ; Young Adult ; covid19
    Subject code 610 ; 616
    Language English
    Publishing country it
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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