Effect of Lithium Carbonate on Postoperative Sleep in Patients Undergoing Videoassisted Thoracic Surgery

Study Overview
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Brief Summary
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It has been proved that lithium carbonate can prolong slow wave sleep with few or no side-effects. The aim of the present study is to evaluate postoperative sleep quality of patients undergoing video assisted thoracic surgery taken 250mg lithium carbonate 6 hours after surgery.

Detailed Description
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This study is a prospective, randomized, controlled (randomized, parallel group, concealed allocation), double-blinded trial. All patients undergoing video assisted thoracic surgery during morning will be randomized 1:1 to the treatment intervention with lithium carbonate 250mg (Baoqing, Hunan, China) or calcium carbonate 500mg (Reneed, Beijing, China) 6 hours after surgery. The objective of the trial is to evaluate the lithium carbonate 250mg on the first postoperative night sleep quality. The patients received standardized general anesthesia supplemented by paravertebral nerve block. The ultrasound-guided approach for paravertebral nerve block was used with the patient in the lateral decubitus position, and the paravertebral nerve block was administered at the T4-T6 level according to the incision protocol at our center. General anesthesia for maintenance of propofol anesthesia, total intravenous anesthesia was administered by using propofol (Fresenius Kabi, Austria GmbH) at a plasma target concentration (Marsh pharmacokinetic model software) of 2.5-4 μg/ml. Remifentanil (0.2-0.5 μg/kg/min, Renfu, Yichang, China) was given to all patients during the operation. All patients accepted patient-controlled intravenous analgesia with 1 μg ml-1 sufentanil (Renfu, Yichang, China). Duration of sleep was defined as the duration of all bispectral index data below 80 in the 12 hours of monitoring (from 20:00pm to 06:00am).

Official Title
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Effect of Lithium Carbonate on Postoperative Sleep in Patients Undergoing Videoassisted Thoracic Surgery

Conditions
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Sleep Deprivation

Intervention / Treatment
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* Drug: Lithium Carbonate 250 MG
* Drug: Calcium Carbonate 500 MG


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: • 1. ethnic Chinese; • 2. age, 18 to 75 years old; • 3. American Society of Anaesthesiologists (ASA) physical status I or II; • 4. required VATS for lung surgery and one lung ventilation Exclusion Criteria: Cognitive difficulties • Partial or complete gastrectomy • Previous esophageal surgery • Previous treated by radiotherapy or surgery • Inability to conform to the study's requirements • body mass index exceeding 30 kg/m2 • Deprivation of a right to decide by an administrative or juridical entity • Ongoing participation or participation in another study <1 month ago • preoperative Pittsburgh Sleep Quality Index global scores higher than 6 • recent (< 3 months prior) use of antibiotics, probiotics, prebiotics, symbiotics, hormonal medication, laxatives, proton pump inhibitors, insulin sensitizers or traditional Chinese medicine

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: lithium carbonate<br>Patients undergoing video assisted thoracic surgery during the morning will take 250mg lithium carbonate 6 hours after surgery. | Drug: Lithium Carbonate 250 MG<br>* Patients undergoing video assisted thoracic surgery during the morning will take 250mg lithium carbonate 6 hours after surgery.<br>|
| Placebo Comparator: calcium carbonate<br>Patients undergoing video assisted thoracic surgery during the morning will take calcium carbonate 500mg 6 hours after surgery. | Drug: Calcium Carbonate 500 MG<br>* Patients undergoing video assisted thoracic surgery during the morning will take calcium carbonate 500mg 6 hours after surgery.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| sleep quality | The primary objective is to compare postoperative sleep quality, as measured using a bispectral index-Vista monitor during the first night after surgery | first postoperative night | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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bispectral index, lithium carbonate