Hemoglobin-to-red Blood Cell Distribution Width Ratio and Hypothermia for Elderly Patient

As individuals age, they often enter a phase of increased "frailty." Elderly and frail patients represent a population that requires heightened sensitivity and close monitoring during surgical procedures. This study aims to investigate the relationship between the Hemoglobin-to-Red Blood Cell Distribution Width (Hb/RDW) ratio and perioperative hypothermia in elderly patients undergoing transurethral prostatectomy. This is an observational study. Preoperative blood test results and intraoperative body temperature measurements of the patients will be recorded in our data forms.

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Key information

Conditions

Transurethral Resection of Prostate Syndrome Body Temperature Changes Elderly (People Aged 65 or More) General Anesthetic Hypothermia Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

65 year and older

Sex eligibility

Male

Study type

Observational

Primary location

Etlik City Hospital

Ankara, 06170, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Patients who provided informed consent.
Patients scheduled for transurethral prostatectomy surgery.
Patients classified as ASA-PS 1, 2, or 3.
Male patients aged 65 years or older.
Patients undergoing elective surgery.
Patients receiving general anesthesia.

Exclusion criteria

Patients who did not provide informed consent.
Patients undergoing emergency surgery.
Patients with conditions that disrupt thermoregulation (e.g., intracranial mass, peripheral vascular diseases, sepsis).
Patients with a body temperature of <34℃ or >38℃ upon arrival at the preoperative waiting room.
Patients who used heating methods other than the routine cotton cover in the preoperative waiting room.
Patients who received additional heating methods other than the routinely applied intraoperative hot air blower drapes.
Patients undergoing surgery under any type of anesthesia other than general anesthesia.
Patients who were taken out of the operating room while intubated.

Treatment and study plan

body temperature

Other

Body temperature measurement will be performed in the preoperative and intraoperative periods.

Primary outcomes

Perioperative Hypothermia

Time frame: 1 hour before anesthesia and intraoperative

Perioperative hypothermia is defined as any core temperature less than 96.8°F (36.0°C)

Secondary outcomes

Frailty

Time frame: preoperative

The relationship between hemoglobin to red cell distribution width ratio (HRR) and frailty
Red blood cell distribution width

Time frame: 1 hour before anesthesia and intraoperative

The relationship between red blood cell distribution width (RDW) and hypothermia

Sponsors and collaborators

Lead sponsor

Ankara Etlik City Hospital

Other Gov

Registry information

Official study title

Temperature Measurement for Transurethral Prostatectomy Surgery in Elderly Patient

Important dates

Study start: 2025
Primary completion: 2025
Study completion: 2025
First posted: Jan 23, 2025
Registry last updated: Jun 12, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed