The effect of negative pressure drainage on postoperative bleeding volume

Comparison of the volume of hematoma after chronic subdural hematoma surgery using two methods of drain with negative pressure and drain without negative pressure

Status

Recruiting

Phases

Phase 3

Study type

Interventional

Source

IRCT

Registry ID

IRCT20141209020258N196

Enrollment

Registered

2025-02-24

Start date

2025-02-19

Completion date

Unknown

Last updated

2025-07-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic subdural hematoma surgery. Nontraumatic subdural hemorrhage

Interventions

Intervention 1: Intervention group: They will undergo negative pressure drainage using a Hemovac drain(It is a cylindrical chamber with a spring inside it that performs suction by contracting and rele

Eligibility

Sex/Gender

All

Age

60 Years to No maximum

Inclusion criteria

Inclusion criteria: The patient has chronic subdural hematoma. Age over 60 years Patient satisfaction Hematoma greater than 1 cm in diameter or midline shift greater than 5 mm requiring surgery No need for surgery, meaning no loss of consciousness or diameter less than 1 cm or midline shift less than 5 mm, in patients with chronic subdural hematoma

Exclusion criteria

Exclusion criteria: Patient dissatisfaction Patient death for any reason before completion of the study

Design outcomes

Primary

Measure	Time frame
Hematoma volume. Timepoint: Before surgery and one, ten, and 30 days after surgery. Method of measurement: CT-scan.;Recurrence. Timepoint: Thirtieth day after surgery. Method of measurement: CT-scan.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactDr Alireza Kamali

Arak University of Medical Sciences

alikamaliir@yahoo.com+98 68 3222 2003

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026