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December 1, 1993CHEST JournalOpen Access

Patients with established primary or secondary pulmonary hypertension did not exhibit abnormal levels of platelet activation or fibrin formation markers compared to normal subjects.

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Why the study?

Is there evidence of ongoing platelet-fibrin thrombosis (elevated PF4, BTG, FPA, FPBB1-42) in patients with primary pulmonary hypertension compared to normal subjects?

Population

26 subjects: 10 patients with primary pulmonary hypertension, 9 normal volunteers, and 7 patients with…

Comparison

Measurement of peripheral venous blood markers… vs Normal volunteers and patients with secondary…

Design

Case-control

Key result

Patients with established primary or secondary pulmonary hypertension did not exhibit abnormal levels of platelet activation or fibrin formation markers compared to normal subjects.

Authors

LSLarry L. SchulmanColumbia UniversityBGB A GrossmanColumbia CollegeJOJohn D. OwenWake Forest University

Discussion

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Member takes

Overview

Does not support coagulation marker monitoring in established pulmonary hypertension; leaves open roles in early disease or thrombosis risk.

Study Design

Type

Cross-Sectional (n=26)

Structured PICO

Is there evidence of ongoing platelet-fibrin thrombosis (elevated PF4, BTG, FPA, FPBB1-42) in patients with primary pulmonary hypertension compared to normal subjects?

P
Population
26 participants including 10 with primary pulmonary hypertension, 7 with secondary pulmonary hypertension, and 9 normal volunteers.
E
Exposure
Measurement of peripheral venous blood markers of platelet activation (PF4, BTG) and fibrin formation/dissolution (FPA, FPBB1-42)
C
Comparator
Normal volunteers and patients with secondary pulmonary hypertension
O
Outcome
Levels of platelet factor 4 (PF4), beta-thromboglobulin (BTG), fibrinopeptide A (FPA), and fibrinopeptide BB1-42 (FPBB1-42)surrogate

The study suggests that a sustained state of abnormal platelet activation and fibrin formation or dissolution is not present in established pulmonary hypertension.

Cite This Study

Schulman et al. (1993) conducted a cross-sectional in Pulmonary hypertension (n=26). Pulmonary hypertension vs. Normal volunteers was evaluated on Levels of platelet activation (PF4, BTG) and fibrin formation/dissolution (FPA, FPBB1-42) markers. Patients with established primary or secondary pulmonary hypertension did not exhibit abnormal levels of platelet activation or fibrin formation markers compared to normal subjects.

synapsesocial.com/papers/6a6ea0face524a4339c3086dhttps://doi.org/10.1378/chest.104.6.1690
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Fibrinopeptide A levels indicative of pulmonary vascular thrombosis in patients with primary pulmonary hypertension.1990 · 135 citations
  2. 2Coagulation and fibrinolytic parameters in patients with pulmonary hypertension1996 · 53 citations
  3. 3Primary Pulmonary Hypertension2000 · 355 citations
  4. 4Beyond Thrombosis: the Role of Platelets in Pulmonary Hypertension2020 · 47 citations
  5. 5GPIIb/IIIa-ICAM-1–Mediated Platelet–Endothelial Adhesion Exacerbates Pulmonary Hypertension2025 · 12 citations