[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100589649":3},{"organization":4,"outcomesModule":7,"designInfo":38,"detailedDescription":40,"studyPopulation":41,"armGroups":37,"interventions":42,"overallOfficials":37,"centralContacts":50,"locations":56,"responsibleParty":74,"collaborators":37,"id":76,"slug":37,"hasResults":77,"nctId":78,"briefTitle":79,"officialTitle":80,"acronym":37,"eligibilityCriteria":81,"healthyVolunteers":77,"sex":82,"minAge":83,"maxAge":84,"enrollmentInfo":85,"targetDuration":37,"studyType":88,"phases":37,"briefSummary":89,"conditions":90,"keywords":92,"overallStatus":58,"whyStopped":37,"lastUpdateSubmitDate":96,"lastUpdatePostDateStruct":97,"startDateStruct":100,"completionDateStruct":102,"leadSponsor":104,"locationsCount":105},{"fullName":5,"class":6},"The Second Affiliated Hospital of Chongqing Medical University","OTHER",{"primaryOutcomes":8,"secondaryOutcomes":13,"otherOutcomes":37},[9],{"measure":10,"description":11,"timeFrame":12},"The incidence of pain NRS score ≥6 within 48 hours after surgery","NRS score: pain was assessed using a 10-point NRS (range: 0-10, 0 and 10 indicate no pain and the most extreme pain imaginable, respectively）","From the end of the surgery to 48 hours after surgery",[14,17,20,23,25,28,30,33],{"measure":15,"description":11,"timeFrame":16},"The maximum incisional pain score at 0-12h postoperatively","From the end of the surgery to 12 hours after surgery",{"measure":18,"description":11,"timeFrame":19},"The maximum incisional pain score at 12-24h postoperatively","From 12hours to 24 hours after surgery",{"measure":21,"description":11,"timeFrame":22},"The maximum incisional pain score at 24-48h postoperatively","From 24 hours to 48 hours after surgery",{"measure":24,"description":11,"timeFrame":16},"The maximum visceral pain score at 0-12h postoperatively",{"measure":26,"description":11,"timeFrame":27},"The maximum visceral pain score at 12-24h postoperatively","From 12 hours to 24 hours after surgery",{"measure":29,"description":11,"timeFrame":22},"The maximum visceral pain score at 24-48h postoperatively",{"measure":31,"description":32,"timeFrame":12},"Whether additional analgesia was administered within 48 hours after surgery","The proportion of patients who received additional analgesia out of the total patient group",{"measure":34,"description":35,"timeFrame":36},"Patient-controlled intravenous analgesia opioid consumption","PCIA opioid consumption was assessed by checking the PCIA electronic system","From the end of the surgery to 24 hours and 48 hours after surgery",null,{"allocation":37,"interventionModel":37,"interventionModelDescription":37,"primaryPurpose":37,"observationalModel":6,"timePerspective":39,"maskingInfo":37},"PROSPECTIVE","This study aimed to measure the total serum calcium and ionized calcium levels both before and after surgery. Additionally, NRS scores were recorded at different time points.","Patients who underwent elective abdominal surgery under general anesthesia",[43,47],{"type":44,"name":45,"description":46,"armGroupLabels":37,"otherNames":37},"DIAGNOSTIC_TEST","Peripheral venous blood","Peripheral venous blood was collected before and after the surgery to measure the total serum calcium levels.",{"type":44,"name":48,"description":49,"armGroupLabels":37,"otherNames":37},"Arterial blood","Arterial blood was collected before anesthesia induction and after removal of the artificial airway to measure ionized calcium levels.",[51],{"name":52,"role":53,"phone":54,"phoneExt":37,"email":55},"Guangyou Duan, PhD","CONTACT","+86 183 2337 6014","duangy@hospital.cqmu.edu.cn",[57],{"facility":5,"status":58,"city":59,"state":60,"zip":61,"country":62,"countryCode":63,"cosmosGeoPoint":64,"geoPoint":69,"contacts":70},"RECRUITING","Chongqing","Chongqing Municipality","400010","China","CN",{"type":65,"coordinates":66},"Point",[67,68],106.55771,29.56026,{"lat":68,"lon":67},[71,72],{"name":52,"role":53,"phone":54,"phoneExt":37,"email":55},{"name":52,"role":73,"phone":37,"phoneExt":37,"email":37},"PRINCIPAL_INVESTIGATOR",{"type":75,"investigatorFullName":37,"investigatorTitle":37,"investigatorAffiliation":37,"oldNameTitle":37,"oldOrganization":37},"SPONSOR","100589649",false,"NCT06957158","The Effect of Serum Calcium Levels on Postoperative Pain: A Prospective Observational Study","The Effect of Serum Calcium Levels on Postoperative Pain in Patients Undergoing Abdominal Surgery: A Prospective Observational Study","Inclusion Criteria:\n\n* Aged 18-70 years old\n* American Society of Anesthesiologists Classification I-III\n* Patients undergoing elective abdominal surgery under general anesthesia\n* Patients participate voluntarily and sign an informed consent form\n\nExclusion Criteria:\n\n* Patients with a history of severe disease\n* Patients with chronic preoperative pain and\u002For long-term analgesic use\n* Patients with hearing disorders or verbal communication difficulties\n* Patients with psychiatric disorders or cognitive dysfunction\n* Patients requiring mechanical ventilation or ICU admission after surgery\n* Patients with a history of substance or alcohol abuse Patients who could not cooperate with the study for any reason","ALL","18 Years","70 Years",{"count":86,"type":87},350,"ESTIMATED","OBSERVATIONAL","This is a prospective observational study. To investigate the effect of serum calcium levels on postoperative pain in patients undergoing abdominal surgery, and to determine whether changes in serum calcium levels are a risk factor for postoperative pain.",[91],"Postoperative Pain",[93,94,95],"Serum calcium levels","Postoperative pain","Ionized calcium levels","2025-06-24",{"date":98,"type":99},"2025-06-27","ACTUAL",{"date":101,"type":87},"2025-07",{"date":103,"type":87},"2025-12",{"name":5,"class":6},1]