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Early Screening for Cardiac Amyloid Using a History of Bilateral Carpal Tunnel Syndrome

Investigations in Early Screening for Cardiac Amyloid Through History of Bilateral Carpal Tunnel Syndrome

Cardiac amyloidosis is a condition where abnormal protein deposits build up in the heart, making it stiff and causing it to work less effectively. One common type is caused by a normal blood protein called transthyretin (TTR), which can become unstable and form these deposits. When this happens, it is called ATTR-CM, a form of heart disease caused by TTR protein buildup. This can lead to symptoms like tiredness, shortness of breath, or swelling.

Bilateral carpal tunnel syndrome (CTS) is recognized as an early clinical sign of systemic amyloidosis, especially in the context of TTR amyloidosis, where amyloid deposits accumulate in the median nerve. Early identification of cardiac amyloidosis, particularly in patients with bilateral CTS, may allow for earlier intervention with disease-modifying therapies, such as tafamidis, which has been shown to improve survival and reduce hospitalizations in patients with cardiac amyloidosis.

The purpose of this study is to identify patients to evaluate them for previously undiagnosed cardiac amyloidosis. The collected information will help estimate the prevalence of cardiac amyloidosis among participants with prior bilateral CTS using a PYP nuclear scan (technetium-99m pyrophosphate scan). A PYP scan is a special heart imaging test that helps doctors see if certain abnormal proteins are building up in the heart. It's mainly used to help diagnose cardiac amyloidosis.

Studieoversigt

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

139

Fase

  • Ikke anvendelig

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • Patients aged 55 and older at the time of surgery.
  • Patients who have had bilateral carpal tunnel release surgery (i.e., at least two carpal tunnel release surgeries, one for each hand).
  • Patients who underwent surgery between the years 2010-2015.

Exclusion Criteria:

  • Patients under the age of 55 at time of surgery.
  • Patients who had unilateral carpal tunnel release surgery or surgery on only one hand.
  • Patients known alternative neurologic diagnosis explaining CTS
  • Patients with incomplete medical records
  • Patient denies PYP scan
  • Previously diagnosed amyloidosis through previous positive PYP, medical notes or self-reported
  • Patients with prior negative amyloid work up
  • Cognitive/communication issues without available translation support

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Diagnostisk
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: History of Bilateral Carpal Tunnel syndrome
In this study, Technetium-99m pyrophosphate (Tc-99m PYP) cardiac scintigraphy will be performed in participants with a documented history of bilateral carpal tunnel syndrome, a recognized extracardiac manifestation associated with transthyretin (ATTR) amyloidosis. The purpose of this imaging intervention is to evaluate for the presence of cardiac transthyretin amyloid deposition in an at-risk population.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Presence of Cardiac Amyloidosis
Tidsramme: 1 year
1 year

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

1. juli 2026

Primær færdiggørelse (Anslået)

1. juli 2027

Studieafslutning (Anslået)

1. januar 2028

Datoer for studieregistrering

Først indsendt

22. april 2026

Først indsendt, der opfyldte QC-kriterier

5. maj 2026

Først opslået (Faktiske)

12. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

12. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

5. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Hjerte amyloidose

Kliniske forsøg med Technetium-99m Pyrophosphate (Tc-99m PYP) Scan

Abonner