Independent patient guide. Not affiliated with any hospital, clinic or university. Educational only, not medical advice.

Where May-Thurner, nutcracker, pelvic congestion and SMA syndrome are treated

These conditions are uncommon, and many doctors see only a few cases. A practical way to find experience is to look at which hospitals publish on them. We went through the author affiliations of every PubMed paper on each condition and counted, for every hospital, how many papers its doctors wrote. Choose a condition below, then filter by state.

How to use these lists

  • A hospital with many publications has doctors who study the condition. It is a sign of experience, not proof of better care.
  • The number in each row opens exactly those papers in PubMed, so you can see what the hospital published and when.
  • Recent papers matter more: the "Years" column shows the first and the latest publication.
  • Many good doctors treat these conditions without publishing. Ask any doctor how many patients with your condition they treat each year.
Map of the vascular compression syndromes: MALS, SMA syndrome, nutcracker syndrome, May-Thurner syndrome and pelvic congestion
Where the compression syndromes happen, from top to bottom: MALS (celiac artery), nutcracker syndrome (left kidney vein), SMA syndrome (duodenum), May-Thurner syndrome (left iliac vein) and pelvic congestion (pelvic veins). Schematic, patient facing you.

May-Thurner syndrome (iliac vein compression)

Usually treated by vascular surgeons and interventional radiologists who place venous stents. See also stent results from every published study.

Hospital or medical centerStateMay-Thurner publicationsof them studies or seriesYears
Mayo ClinicMinnesota24202010-2026
St. Dominic Hospital (Jackson)Mississippi20202018-2026
Yale School of Medicine / Yale New HavenConnecticut1792011-2026
Massachusetts General HospitalMassachusetts14102001-2026
Stanford MedicineCalifornia14131993-2026
Mount SinaiNew York1392018-2024
Michigan MedicineMichigan12112002-2026
Johns Hopkins MedicineMaryland1172004-2026
Northwestern MedicineIllinois1172004-2024
Duke HealthNorth Carolina972014-2026
Brigham and Women's HospitalMassachusetts852011-2026
NYU LangoneNew York832017-2025
NewYork-Presbyterian / ColumbiaNew York852017-2026
University of Maryland Medical CenterMaryland802021-2026
Jefferson Health (Thomas Jefferson University)Pennsylvania741999-2026
UPMCPennsylvania762013-2026
Corewell Health (Beaumont)Michigan642015-2022
UT Southwestern Medical CenterTexas662009-2024
University of Miami HealthFlorida622019-2025
University of North Carolina School of MedicineNorth Carolina662016-2026
Cleveland ClinicOhio542011-2024
Emory HealthcareGeorgia532006-2026
Indiana University HealthIndiana532000-2020
MedStar Washington Hospital CenterDistrict of Columbia542018-2025
Penn MedicinePennsylvania532013-2025
University of Chicago MedicineIllinois512015-2023
University of Colorado / Children's ColoradoColorado532008-2026
M Health Fairview / University of MinnesotaMinnesota422001-2026
Ochsner HealthLouisiana411997-2026
Rush University Medical CenterIllinois422012-2025
Sanger Heart and Vascular InstituteNorth Carolina442013-2026
UCLA HealthCalifornia422013-2025
UVA HealthVirginia432001-2026
University of ArizonaArizona432017-2024
Vascular Institute of New YorkNew York442018-2020
Children's Healthcare of AtlantaGeorgia332021-2024
Children's Hospital of PhiladelphiaPennsylvania312006-2025
Froedtert / Medical College of WisconsinWisconsin332023-2026
George Washington University HospitalDistrict of Columbia332021-2024
Houston MethodistTexas312021-2025
Jobst Vascular InstituteOhio332021-2024
Mallinckrodt Institute of RadiologyMissouri332015-2026
Ohio State UniversityOhio332021-2026
Stony Brook MedicineNew York332020-2026
Tulane University School of MedicineLouisiana311987-2026
UF HealthFlorida312019-2026
UTHealth HoustonTexas302017-2025
UW MedicineWashington322021-2022
University of Kansas Health SystemKansas312020-2025
University of KentuckyKentucky312021-2022
University of Mississippi Medical CenterMississippi332001-2009
WVU MedicineWest Virginia311991-2023
Allegheny General HospitalPennsylvania212016-2026
Baylor College of MedicineTexas212022-2024
Boston Medical CenterMassachusetts212012-2026
Brandon Regional HospitalFlorida202018-2021
Brooklyn Hospital CenterNew York202022-2026
Chicago Medical SchoolIllinois212018-2019
College of Osteopathic MedicineMissouri212022-2024
Eastern Virginia Medical SchoolVirginia222022-2024
Harvard Medical SchoolMassachusetts212013-2023
Henry Ford HealthMichigan202014-2021
Inova HospitalVirginia222023-2025
Madigan Army Medical CenterWashington202021-2026
Methodist HospitalIndiana202012-2024
Michigan State University College of Osteopathic MedicineMichigan212021-2022
Montefiore Medical CenterNew York202017-2019
OHSUOregon212018-2026
Ohio Health/Riverside Methodist HospitalOhio222022-2024
Ohio State University Wexner Medical CenterOhio222020-2025
Penn Presbyterian Medical CenterPennsylvania212018-2026
Pennsylvania HospitalPennsylvania212013-2016
Piedmont Henry HospitalGeorgia212024-2026
Renaissance School of MedicineNew York222021
Rutgers New Jersey Medical SchoolNew Jersey202023-2026
St Luke's HospitalMissouri212017-2026
Temple University HospitalPennsylvania212019-2021
Texas Children's HospitalTexas222021-2024
Texas Christian UniversityTexas222025-2026
UAB MedicineAlabama222017-2023
UC Davis HealthCalifornia202011-2019
UW HealthWisconsin222022-2024
University of Alabama School of MedicineAlabama222021
University of ConnecticutConnecticut212018-2020
University of Connecticut Health CenterConnecticut202008-2023
University of Iowa Health CareIowa212016-2022
University of New Mexico Health Sciences CenterNew Mexico212019-2022
University of New Mexico School of MedicineNew Mexico202021-2024
University of South Carolina School of MedicineSouth Carolina222021
University of Toledo College of Medicine and Life SciencesOhio202022-2026
Virginia Tech Carilion School of MedicineVirginia222021
Washington University / Barnes-JewishMissouri212019-2026
West Anaheim Medical CenterCalifornia202024-2025
William Carey University College of Osteopathic MedicineMississippi202026

May-Thurner: outside the United States

Hospital or universityCountryMay-Thurner publicationsYears
First Affiliated Hospital of Chongqing Medical UniversityChina132018-2026
Maastricht University Medical CentreNetherlands132012-2023
Nanjing First HospitalChina112009-2025
Second Affiliated Hospital of Soochow UniversityChina92016-2024
University Hospital RWTH AachenGermany92015-2024
University Hospital AachenGermany82016-2023
Cardiovascular Research Institute MaastrichtNetherlands62016-2018
Singapore General HospitalSingapore62020-2022
Beijing Friendship HospitalChina52020-2025
Beijing Shijitan HospitalChina52017-2025
Charing Cross HospitalUK52016-2022
McMaster UniversityCanada52016-2026
Savelyev University Surgical ClinicRussia52020-2026
Tan Tock Seng HospitalSingapore52019-2026
University of CataniaItaly52021-2023
University of TorontoCanada52021-2026
Zhongshan HospitalChina52020-2026
Affiliated Hospital of Qingdao UniversityChina42018-2026
Assiut University HospitalsEgypt42019-2024
Beijing Luhe HospitalChina42018-2026
Bern University HospitalSwitzerland42020-2024
Binzhou Medical University Hospital-42023-2025
First Affiliated Hospital of Xi'an Jiaotong UniversityChina42018-2025
Prince of Wales HospitalAustralia42018-2024
Wollongong HospitalAustralia42023-2024
Alfred HospitalAustralia32023-2024
Northern HospitalAustralia32023-2026
University of British ColumbiaCanada32021-2026
University of MelbourneAustralia32023-2026
University of QueenslandAustralia32018-2024
Baker Heart and Diabetes InstituteAustralia22023-2024
Central Clinical SchoolAustralia22023-2024
Flinders Medical CentreAustralia22023-2024
Galway University HospitalIreland22019-2020
Imperial CollegeUK22014-2025
Imperial College Healthcare NHS TrustUK22022-2022
King's College LondonUK22020-2024
London South Bank UniversityUK22024-2026
Oxford University Hospitals NHS Foundation TrustUK22020-2022
Oxford University Hospitals NHS TrustUK22017-2020
Royal College of Surgeons in IrelandIreland22019-2025
Royal Melbourne HospitalAustralia22021-2021
Royal Prince Alfred HospitalAustralia22023-2024
St Thomas' HospitalUK22022-2025
Tallaght University HospitalIreland22019-2020
University Hospital GalwayIreland22021-2025
University of CalgaryCanada22016-2019
University of New South WalesAustralia22019-2024
University of WollongongAustralia22020-2024

Source: author affiliations in 1209 PubMed records on May-Thurner, built November 9, 2026. A hospital is counted once per paper if any author listed it. Publications show research activity, not the number of patients treated or the quality of care; this list is not an endorsement or a ranking.

Nutcracker syndrome

Usually treated by vascular surgeons, often together with urologists or nephrologists; children are seen by pediatric nephrology and urology teams. See also treatment results from every published study.

Hospital or medical centerStateNutcracker publicationsof them studies or seriesYears
Mayo ClinicMinnesota29222008-2026
Duke HealthNorth Carolina872013-2026
University of Maryland Medical CenterMaryland732017-2026
Massachusetts General HospitalMassachusetts652013-2025
University of Colorado / Children's ColoradoColorado651991-2025
Brigham and Women's HospitalMassachusetts432009-2024
Cleveland ClinicOhio422009-2019
Mount SinaiNew York402018-2022
NewYork-Presbyterian / ColumbiaNew York422019-2025
UF HealthFlorida422012-2026
UPMCPennsylvania442013-2026
UT Southwestern Medical CenterTexas432018-2024
UW HealthWisconsin422019-2025
University of Utah HealthUtah422018-2026
Emory HealthcareGeorgia322010-2021
Johns Hopkins MedicineMaryland322006-2026
NYU LangoneNew York312016-2026
Saint Louis University School of MedicineMissouri302022-2026
Stanford MedicineCalifornia322014-2024
University of North Carolina at Chapel HillNorth Carolina332021-2026
Yale School of Medicine / Yale New HavenConnecticut332017-2026
Advocate Lutheran General HospitalIllinois222016-2021
Beth Israel Deaconess Medical CenterMassachusetts212020-2026
Children's Hospital and Regional Medical CenterWashington202002-2007
Corewell Health (Beaumont)Michigan222017-2026
Drexel University College of MedicinePennsylvania202017-2025
Jobst Vascular InstituteOhio222021
Loyola University Medical CenterIllinois222023-2026
M Health Fairview / University of MinnesotaMinnesota212026
Michigan MedicineMichigan211991-2017
Nebraska MedicineNebraska212015-2022
Penn MedicinePennsylvania212022-2025
Renaissance School of MedicineNew York222021
Tripler Army Medical CenterHawaii202018-2020
UAB MedicineAlabama202013-2017
UCSF HealthCalifornia212024-2026
Uniformed Services University of the Health SciencesMaryland222001-2023
University Hospitals Cleveland Medical CenterOhio222016-2025
University of Alabama School of MedicineAlabama222021
University of ArizonaArizona212022-2026
University of North Carolina School of MedicineNorth Carolina212023-2026
University of South Carolina School of MedicineSouth Carolina222021
Virginia Tech Carilion School of MedicineVirginia222021
Walter Reed National Military Medical CenterMaryland212017-2025
Washington University / Barnes-JewishMissouri222021-2025

Nutcracker: outside the United States

Hospital or universityCountryNutcracker publicationsYears
University of CataniaItaly72020-2024
Tangdu HospitalChina62018-2026
First Affiliated Hospital of Medical CollegeChina52003-2015
Seoul National University HospitalSouth Korea52006-2025
All India Institute of Medical SciencesIndia42010-2024
Ankara University School of MedicineTurkey42010-2024
Hospital for Sick ChildrenCanada42019-2021
Medical University of ŁódźPoland42013-2020
Severance Children's HospitalSouth Korea42007-2024
Severance HospitalSouth Korea42005-2018
Ankara UniversityTurkey32007-2022
Carol Davila University of Medicine and PharmacyRomania32006-2025
Chang Gung Memorial HospitalTaiwan31999-2005
Ghent University HospitalBelgium32015-2020
Hospital of SahloulTunisia32013-2015
Iran University of Medical SciencesIran32016-2025
Kosuyolu Heart Training and Research HospitalTurkey32024-2025
Kyung Hee UniversitySouth Korea32002-2013
Kyung Hee University Hospital at GangdongSouth Korea32014-2026
Multipurpose University Clinic of Anesthesia and Resuscitation (CNHU-HKM)Benin32025-2026
Tenri HospitalJapan31988-2005
Chelsea and Westminster HospitalUK22015-2018
Galway University HospitalIreland22022-2025

Source: author affiliations in 892 PubMed records on Nutcracker, built November 9, 2026. A hospital is counted once per paper if any author listed it. Publications show research activity, not the number of patients treated or the quality of care; this list is not an endorsement or a ranking.

Pelvic congestion syndrome

Usually treated by interventional radiologists and vein specialists, with gynecologists ruling out other causes of pelvic pain. See also embolization results from every published study.

Hospital or medical centerStatePelvic congestion publicationsof them studies or seriesYears
Mayo ClinicMinnesota13102011-2026
NewYork-Presbyterian / ColumbiaNew York13132019-2026
George Washington University HospitalDistrict of Columbia982002-2025
Duke HealthNorth Carolina882009-2026
Northwestern MedicineIllinois751994-2024
Jefferson Health (Thomas Jefferson University)Pennsylvania662002-2022
Johns Hopkins MedicineMaryland641999-2025
Stony Brook MedicineNew York652007-2026
UW MedicineWashington662015-2024
Emory HealthcareGeorgia532012-2026
Massachusetts General HospitalMassachusetts552014-2026
UW HealthWisconsin542018-2022
Michigan MedicineMichigan432017-2025
UPMCPennsylvania432019-2026
M Health Fairview / University of MinnesotaMinnesota322013-2026
NYU LangoneNew York322012-2026
Penn MedicinePennsylvania332018-2022
UAB MedicineAlabama332018-2023
Uniformed Services University of the Health SciencesMaryland331991-2024
University of Missouri-Kansas CityMissouri332025-2026
University of Rochester School of Medicine and DentistryNew York332010-2021
Yale School of Medicine / Yale New HavenConnecticut322019-2026
Boston Medical CenterMassachusetts212012-2023
Brigham and Women's HospitalMassachusetts222014-2018
College of Osteopathic MedicineCalifornia212025
Drexel University College of MedicinePennsylvania212017-2026
Jobst Vascular InstituteOhio222021
Mount SinaiNew York212023-2026
Ohio State UniversityOhio222022-2026
Ohio State University Medical CenterOhio222014-2026
Piedmont Henry HospitalGeorgia212024-2026
Renaissance School of MedicineNew York222021
SUNY Downstate Medical SchoolNew York202010-2012
Tripler Army Medical CenterHawaii211998-2018
UF HealthFlorida212019-2026
UVA HealthVirginia222023-2025
University of Alabama School of MedicineAlabama222021
University of Colorado / Children's ColoradoColorado222013-2018
University of Illinois Hospital and Health Sciences SystemIllinois222014-2015
University of North Carolina School of MedicineNorth Carolina222025-2026
University of North Carolina at Chapel HillNorth Carolina222023-2026
University of Rochester Medical CenterNew York222005-2021
University of South Carolina School of MedicineSouth Carolina222021
University of Utah HealthUtah222018-2021
Vanderbilt University Medical CenterTennessee222008-2025
Virginia Tech Carilion School of MedicineVirginia222021

Pelvic congestion: outside the United States

Hospital or universityCountryPelvic congestion publicationsYears
Savelyev University Surgical ClinicRussia252019-2026
Whiteley ClinicUK122008-2026
Medical University of LublinPoland112016-2026
St Mary's HospitalUK61990-2023
University of SurreyUK62016-2026
University of ZaragozaSpain62013-2026
Pirogov Russian National Research Medical UniversityRussia52018-2022
University of TorontoCanada52023-2026
Clinic of PhlebologyPoland42021-2023
Hospital Universitario AustralArgentina42020-2026
Kazan State Medical UniversityRussia42020-2025
St. Michael's HospitalCanada42025-2026
University of CataniaItaly42021-2026
Beijing Shijitan HospitalChina32024-2026
François-Mitterrand University HospitalFrance32025-2026
Hacettepe University School of MedicineTurkey32009-2010
Hospital Clínico Universitario Lozano BlesaSpain32020-2026
Hospital Mater DeiBrazil32024-2026
Hospital das ClínicasBrazil32014-2026
Imperial College LondonUK32024-2026
Institute of Bio-Medical ProblemsRussia32019-2020
Jagiellonian University Medical CollegePoland32019-2026
Medical University of WarsawPoland32021-2023
Pellegrin HospitalFrance32020-2022
Princess Anne HospitalSO YA32000-2014
Private ClinicTurkey32024-2026
Gosford HospitalAustralia22025-2025
Institute of Metabolism and Systems BiologyUK22016-2016
John Radcliffe HospitalUK22007-2013
McMaster UniversityCanada22019-2026
Royal Bournemouth HospitalUK22018-2026
Royal College of Surgeons in IrelandIreland22025-2026
Sydney Fibroid ClinicAustralia22025-2025
University Hospital of South ManchesterUK22015-2016
University of British ColumbiaCanada22019-2023
University of CalgaryCanada22019-2025
University of ManchesterUK22015-2016

Source: author affiliations in 618 PubMed records on Pelvic congestion, built November 9, 2026. A hospital is counted once per paper if any author listed it. Publications show research activity, not the number of patients treated or the quality of care; this list is not an endorsement or a ranking.

SMA syndrome (Wilkie syndrome)

Usually treated by gastroenterologists and nutrition teams first, and by general or pediatric surgeons when surgery is needed. See also treatment results from every published study.

Hospital or medical centerStateSMA syndrome publicationsof them studies or seriesYears
Mayo ClinicMinnesota1542001-2026
Cleveland ClinicOhio741998-2025
Northwestern MedicineIllinois721991-2022
University of Colorado / Children's ColoradoColorado642019-2025
Johns Hopkins MedicineMaryland432007-2018
UPMCPennsylvania412010-2024
Children's Hospital Los AngelesCalifornia322020-2025
Michigan State UniversityMichigan312012-2020
NYU LangoneNew York302004-2023
Nationwide Children's HospitalOhio322015-2026
Naval Medical Center San DiegoCalifornia312012-2023
NewYork-Presbyterian / ColumbiaNew York312003-2026
Stanford MedicineCalifornia322011-2022
UC Irvine HealthCalifornia321988-2016
University of Miami HealthFlorida322014-2023
Wilford Hall Medical CenterTexas302005-2008
Alfred I. duPont Hospital for ChildrenDelaware222003-2004
Boston Medical CenterMassachusetts202020-2021
BronxCare Health SystemNew York202020-2024
Cedars-Sinai Medical CenterCalifornia212015-2026
Children's Hospital of PhiladelphiaPennsylvania222007-2015
Children's Mercy Kansas CityKansas222020-2026
Froedtert / Medical College of WisconsinWisconsin222020-2024
Gundersen Lutheran Medical CenterWisconsin202005-2006
Indiana University HealthIndiana222009-2015
Loyola University Medical CenterIllinois202014-2023
Massachusetts General HospitalMassachusetts211990-2025
Methodist Dallas Medical CenterTexas222023-2026
Michigan MedicineMichigan212004-2017
Morsani College of MedicineFlorida212022-2025
Ochsner HealthLouisiana212001-2015
Ohio State University Wexner Medical CenterOhio202017-2024
Philadelphia College of Osteopathic MedicineGeorgia202023-2025
Rush University Medical CenterIllinois202017-2025
Shriners Hospitals for ChildrenPennsylvania222005-2010
Staten Island University HospitalNew York212014-2015
Texas Tech University Health Sciences CenterTexas202000-2024
UF HealthFlorida222020-2026
UW MedicineWashington202012-2015
University of Central Florida College of MedicineFlorida212020-2022
University of Illinois ChicagoIllinois202011-2017
University of Kansas Health SystemKansas212004-2017
University of South Florida Morsani College of MedicineFlorida212017-2022
University of Texas Medical BranchTexas212016-2022
Washington University / Barnes-JewishMissouri212012-2026
Weill Cornell MedicineNew York202018-2020
Yale School of Medicine / Yale New HavenConnecticut212021-2026

SMA syndrome: outside the United States

Hospital or universityCountrySMA syndrome publicationsYears
All India Institute of Medical SciencesIndia62017-2025
Damascus UniversitySyria62023-2026
First Affiliated Hospital of Zhengzhou UniversityChina42014-2024
Mie University Graduate School of MedicineJapan42007-2016
Royal Hospital for Sick ChildrenUK42001-2014
University of CataniaItaly42005-2024
University of MalayaMalaysia42013-2021
Drum Tower HospitalChina32005-2008
Hamamatsu University School of Medicine-31994-2020
Jinling HospitalChina32014-2020
Peking University International HospitalChina32023-2026
Queen Mary HospitalHong Kong31997-2011
Royal Melbourne HospitalAustralia32010-2018
St. Mary's HospitalSouth Korea32003-2021
University of AleppoSyria32019-2026
University of TorontoCanada32017-2022
Addenbrooke's HospitalUK22009-2012
Bankstown HospitalAustralia22009-2015
Hospital for Sick ChildrenCanada22020-2022
St Thomas HospitalUK22005-2017
University of Western OntarioCanada21996-2010

Source: author affiliations in 1277 PubMed records on SMA syndrome, built November 9, 2026. A hospital is counted once per paper if any author listed it. Publications show research activity, not the number of patients treated or the quality of care; this list is not an endorsement or a ranking.

How we built these lists

  • We downloaded every PubMed record on each condition and read the affiliation of every author.
  • A hospital counts once per paper, however many of its doctors are authors. Different spellings of the same hospital are merged; departments are merged into their hospital.
  • US hospitals are listed when they have at least 2 papers and a known state; outside the US we show the hospitals with the most papers.
  • We list institutions only, never the names of individual doctors.

Limitations

  • Publishing reflects research interest, not the number of patients treated or the results of care.
  • Affiliations are written in many ways, so some hospitals may be split, merged or missing.
  • Some papers are single case reports; the "studies or series" column counts only papers that are not case reports.
  • This list is not an endorsement or a ranking, and we have no financial relationship with any hospital.

For MALS, see our separate list of hospitals that publish on MALS.

MALS Compass is an independent educational website, not a medical provider, and is not affiliated with any hospital, clinic or university. This page is educational information and does not replace advice from your own doctor. For any question about your health, please contact your doctor or an official healthcare institution.

MALS Compass