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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.
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.
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Peripheral venous blood | Diagnostic Test | Peripheral venous blood was collected before and after the surgery to measure the total serum calcium levels. | ||
| Arterial blood | Diagnostic Test | Arterial blood was collected before anesthesia induction and after removal of the artificial airway to measure ionized calcium levels. |
| Measure | Description | Time Frame |
|---|---|---|
| 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 |
| Measure | Description | Time Frame |
|---|---|---|
| The maximum incisional pain score at 0-12h postoperatively | 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 12 hours after surgery |
| The maximum incisional pain score at 12-24h postoperatively |
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Inclusion Criteria:
Exclusion Criteria:
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Patients who underwent elective abdominal surgery under general anesthesia
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Guangyou Duan, PhD | Contact | +86 183 2337 6014 | duangy@hospital.cqmu.edu.cn |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| The Second Affiliated Hospital of Chongqing Medical University | Recruiting | Chongqing | Chongqing Municipality | 400010 | China |
The individual participant data for this study is available from the sponsor on reasonable request through email
Five years after the study
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| ID | Term |
|---|---|
| D010149 | Pain, Postoperative |
| ID | Term |
|---|---|
| D011183 | Postoperative Complications |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D010146 | Pain |
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| ID | Term |
|---|---|
| D062186 | Arterial Pressure |
| ID | Term |
|---|---|
| D001794 | Blood Pressure |
| D006439 | Hemodynamics |
| D002320 | Cardiovascular Physiological Phenomena |
| D002943 | Circulatory and Respiratory Physiological Phenomena |
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Venous blood and arterial blood were collected
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 12hours to 24 hours after surgery |
| The maximum incisional pain score at 24-48h postoperatively | 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 24 hours to 48 hours after surgery |
| The maximum visceral pain score at 0-12h postoperatively | 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 12 hours after surgery |
| The maximum visceral pain score at 12-24h postoperatively | 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 12 hours to 24 hours after surgery |
| The maximum visceral pain score at 24-48h postoperatively | 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 24 hours to 48 hours after surgery |
| Whether additional analgesia was administered within 48 hours after surgery | The proportion of patients who received additional analgesia out of the total patient group | From the end of the surgery to 48 hours after surgery |
| 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 |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |