The goal of this observational study is to learn about the effect of menstrual cycle on postoperative shivering in women of fertile age. The main question it aims to answer is:
\- Do women in the luteal phase have less postoperative shivering? Participants will have their intraoperative body temperature recorded and will be observed for postanesthetic shivering, depending on whether they are in the luteal phase or follicular phase.
Eligibility
Sex
FEMALE
Min age
18 Years
Max age
45 Years
Healthy volunteers
No
Inclusion Criteria:
* Female patients undergoing elective open technical septoplasty or rhinoplasty
* 18-45 years of age
* ASA score I-II
Exclusion Criteria:
* Patient-legal representative does not want to be included in the study
* Emergency surgery
* Use of drugs that affect cardiovascular function, heat balance and hormone levels (e.g. combined oral contraceptives)
* Menstrual irregularity
* Polycystic ovary syndrome
* Thyroid disease
* Autonomic disease
* Reyno disease
* Uncontrolled diabetes mellitus
* Uncontrolled hypertension
* Surgeries where the duration of anesthesia is less than 1 hour
* Patients with NRS pain score above 7 in the recovery unit after anesthesia
* Core body temperature below 36°C before induction of general anesthesia
Primary outcome measure(s)
Postoperative Shivering — First 15 minutes after surgery Postanesthetic shivering will be evaluated in the postanesthesia care unit by Postanesthetic Shivering Scale. The scale is a 5-points scale. 0= no shivering
1= no visible muscle activity but piloerection, peripheral vasoconstriction, or both are present (other causes excluded); 2 = muscular activity in only one muscle group; 3 = moderate muscular activity in more than one muscle group but no generalized shaking; 4 = violent muscular activity that involves the whole body. 3 and 4 mean worse outcome as the patient needs medication to treat shivering.
Number of patients who require meperidine — first 15 minutes after surgery The need for intravenous meperidine administration when the postanesthetic shivering scale (PAS) of the patient is above 3.
Trial sites (1)
Facility
City
Region
Status
Izmir City Hospital
Izmir
Bayraklı
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This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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