Study of Prognostic Values of Platelet Indices and Inflammatory Markers in Patients With HELLP Syndrome.

January 22, 2026 updated by: Esraa Jaheen Ali, Sohag University

Prognostic Values of Platelet Indices and Inflammatory Markers in Patients With HELLP Syndrome( Observational Controlled Study)

This study aims to evaluate the prognostic values of platelet indices and inflammatory markers in patients with HELLP syndrome as:- :-Primary outcome To investigate prognostic values of platelet indices and. . inflammatory markers in HELLP syndrome patients as main indices including (NLR-PLR-MPV-PDW and RDW). .

-Secondary outcome. Evaluation complications of HELLP syndrome including. .

  • Maternal complication:- eclampsia, disseminated intravascular coagulation (DIC), liver rupture, placental abruption, stroke, and pulmonary or kidney failure. .
  • Fetal complication:-intra uterine fetal death(iufd) ,neonate need for admission to NICU , congintal anomalies .assess APGAR score (which assess appearance(skin color)-pulse(heart rate)-Grimace(reflex irritability)- Activity(muscle tone)-Respiratory(breathing efforts) or umblical cord PH<7. .

Study Overview

Status

Not yet recruiting

Conditions

Detailed Description

Hemolysis, elevated liver enzymes, and low platelet count (HELLP) syndrome is a severe complication in the third trimester of pregnancy. First described by Weinstein in 1982(1)

  • HELLP syndrome occurs in up to 0.9% of all pregnancies in the third trimester or in the immediate postpartum period (2)

Associated with adverse pregnancy outcomes, the maternal and perinatal mortality rates of HELLP syndrome may reach up to 23.1% and 56.9% respectively, which is life threatening to both the gravida and the fetus(3)

  • Usually, patients develop HELLP syndrome before 36 weeks of gestation with vague symptoms such as malaise (90%), right-upper-quadrant pain (90%), nausea, or vomiting(4)

Preeclampsia (PE) constitutes one of the principal reasons for maternal and perinatal morbidity and mortality worldwide. The circumstance typically implicates formerly healthful normotensive women, after 20 weeks of gestation, typically withinside the third trimester, without regarded threat elements or past deliveries. PE can be further complicated with hemolysis and thrombocytopenia, leading to the emergence of HELLP syndrome. Both conditions are classified as hypertensive diseases of pregnancy (HDP), and their pathogenesis has been linked to an excessive maternal inflammatory response, accompanied by enhanced endothelial activation(5)

. The pathogenesis of HELLP is not fully understood. The findings of this multisystem disease are attributed to abnormal vascular tone, vasospasm and coagulation defects. So far, no common precipitating factor has been found. The syndrome seems to be the final manifestation of some insult that leads to microvascular endothelial damage and intravascular platelet activation (6)

  • With platelet activation, thromboxane A and serotonin are released, causing vasospasm, platelet agglutination and aggregations, and further endothelial damage. Thus begins a cascade that is only terminated with delivery(7)

Early detection and accurate diagnosis are essential for correct management. The maternal symptoms may be vague and easily mistaken for a variety of medical or obstetric complications which should be excluded. There are two main diagnostic definitions of the HELLP syndrome. The widely used Tennessee classification requires the presence of (1) microangiopathic hemolytic anemia with abnormal blood smear, low serum haptoglobin and elevated LDH levels, (2) elevation of ASAT above 70 IU/L and LD above 600 IU/L (both enzyme levels more than twice the upper limit of normal values) or bilirubin more than 1.2 mg/dL, and (3) a platelet count below 100 109 L1(8) . HELLP syndrome implies impaired placentation during the early stages of pregnancy, associated with hepatic and coagulation cascade involvement. Coagulation system is activated by the contact of platelets with the injured endothelium leading to increase in consumption as well as bone marrow production of platelets. Raised mean platelet volume (MPV) and platelet distribution width (PDW) have been shown to be correlated with severity of the disease, whenever there is decreased PLT count (9)

. The inflammatory reaction in HELLP syndrome is more severe, but studies on the levels of inflammatory indices [e.g., neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), MPV, PDW, monocyte-to-lymphocyte ratio (MLR)] in HELLP patients have rarely been reported. As NLR, calculated by dividing the absolute neutrophil count by the lymphocyte count, reflects the balance between innate (neutrophil-mediated) and adaptive (lymphocyte-mediated) immunity, with elevated values indicating heightened inflammatory activity. PLR, obtained by dividing platelet count by lymphocyte count, integrates the pro-thrombotic and inflammatory roles of platelets with immune regulation. MLR, the ratio of monocytes to lymphocytes, is considered a marker of chronic inflammation and monocyte activation. MPV represents the average size of circulating platelets and serves as an indicator of platelet activation, while PDW measures the variability in platelet size reflecting heterogeneity in platelet production and turnover (10)

. Sisti et al (11, 12)found that the NLR was higher and the PLR was lower in patients with HELLP syndrome in the third trimester, but these indices in the first trimester did not predict the occurrence of HELLP in the third trimester. Only a relatively small number of cases were included in previous studies on this topic and no simultaneous comparison of normal pregnancies and HELLP was found (13, 14)

.

Study Type

Observational

Enrollment (Estimated)

60

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Patients with HELLP syndrome in surgical intensive care unit

Description

Inclusion Criteria:

  • Pregnant women aged 18 and 45 years. Gestational age ranged from 28 to 41 weeks. Pregnant women diagnosed with HELLP syndrome. Preeclampsia with Hellp syndrome. Pt with HELLP syndrome was delivered by ceserian section(SC)then admitted to Intensive care unit (ICU) only normal singleton pregnancies without fetal congenital or chromosomal anomalies

Exclusion Criteria:

  • Patients with infection and fever. Women with a history of diabetes, hypertension, systemic or endocrine disorder, chronic infection, chronic renal disease Liver diseases. Blood diseases. Drugs affecting platelet counts or functions. Any history of membrane rupture

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
HELLP syndrome group
Pregnant patients diagnosed with HELLP syndrome enrolled prospectively to evaluate platelet indices and inflammatory markers and their prognostic value on maternal and clinical outcomes.

All patients will be subjected to the following in ICU through 48 hrs

Detailed medical history taking:

Demographic data (age, weight, height, body mass index (BMI). Physical examination (conscious level-vital signs) Type of anesthesia (spinal -general anesthesia) Number of pregnancies, parity, history of previous pregnancies, smoking status, and history of assisted reproductive treatments.

Laboratory investigations, indices and inflammatory markers:

will be obtained after delivery, once the patient is admitted to the intensive care unit. Complete blood counts (CBC). Biochemical analyses [such as aspartate aminotransferase (AST), alanine aminotransferase (ALT), lactate dehydrogenase (LDH), albumin ,bilirubin and creatinine]. The indices include platelet count (PC), MPV, PDW, and plateletcrit (PCT), among these, PDW, an indicator of platelet size heterogeneity, is a marker of platelet function. It is being evaluated as a potential indicator for the risk prediction of

Healthy pregnant controlled group
Healthy pregnant women without hypertensive disorders of pregnancy recruited as a control group for comparison.

All patients will be subjected to the following in ICU through 48 hrs

Detailed medical history taking:

Demographic data (age, weight, height, body mass index (BMI). Physical examination (conscious level-vital signs) Type of anesthesia (spinal -general anesthesia) Number of pregnancies, parity, history of previous pregnancies, smoking status, and history of assisted reproductive treatments.

Laboratory investigations, indices and inflammatory markers:

will be obtained after delivery, once the patient is admitted to the intensive care unit. Complete blood counts (CBC). Biochemical analyses [such as aspartate aminotransferase (AST), alanine aminotransferase (ALT), lactate dehydrogenase (LDH), albumin ,bilirubin and creatinine]. The indices include platelet count (PC), MPV, PDW, and plateletcrit (PCT), among these, PDW, an indicator of platelet size heterogeneity, is a marker of platelet function. It is being evaluated as a potential indicator for the risk prediction of

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
This study aims to evaluate the prognostic values of platelet indices and inflammatory markers in patients with HELLP syndrome
Time Frame: 48Hours
To investigate prognostic values of platelet indices and. . inflammatory markers in HELLP syndrome patients as main indices including (NLR-PLR-MPV-PDW and RDW)
48Hours

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Evaluation complications of HELLP syndrome
Time Frame: 48 hours

Maternal complication:- eclampsia, disseminated intravascular coagulation (DIC), liver rupture, placental abruption, stroke, and pulmonary or kidney failure. .

*Fetal complication:-intra uterine fetal death(iufd) ,neonate need for admission to NICU , congintal anomalies .assess APGAR score (which assess appearance(skin color)-pulse(heart rate)-Grimace(reflex irritability)- Activity(muscle tone)-Respiratory(breathing efforts) or umblical cord PH<7. .

48 hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

February 1, 2026

Primary Completion (Estimated)

August 1, 2026

Study Completion (Estimated)

December 1, 2026

Study Registration Dates

First Submitted

January 22, 2026

First Submitted That Met QC Criteria

January 22, 2026

First Posted (Actual)

January 30, 2026

Study Record Updates

Last Update Posted (Actual)

January 30, 2026

Last Update Submitted That Met QC Criteria

January 22, 2026

Last Verified

January 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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