Neutrophil-to-lymphocyte and Platelet-to-lymphocyte Ratio in Predicting the Incidence of Nausea and Vomiting

Study Overview
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Brief Summary
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By comparing the incidence of PONV, the dosage of postoperative antiemetic drugs, the postoperative VAS score and the utilization rate of PCIA of hemophilia A patients in the NLR≥2 and NLR<2 groups, investigators could find out the high value in the diagnosis of hemophilia A, which is helpful to guide the clinical diagnosis and treatment of hemophilia A.

Detailed Description
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Hemophilia arthropathy is a debilitating complication of hemophilia that occurs primarily in severe forms with recurrent spontaneous intra-articular hemorrhage, with the knee being the most commonly affected joint. Currently, total knee arthroplasty is the standard treatment for end-stage hemophilic arthropathy. Due to the special disease of hemophilia, general anesthesia is often chosen as the preferred anesthesia method, and the risk of bleeding is lower than that of neuraxial anesthesia. However, 20 to 30 percent of surgical patients suffer from post-operative nausea and vomiting after general anesthesia. Neutrophil to lymphocyte ratio and platelet to lymphocyte ratio have been suggested as parameters for the diagnosis and follow-up of inflammatory diseases, and inflammation has been found to increase the risk of PONV. However, for patients with hemophilia, no information is currently available on the relationship between the two. In this study, investigators intend to retrospectively analyze the clinical data of patients with hemophilia A in our hospital, explore the clinical value of preoperative NLR and PLR in predicting nausea and vomiting after TKA.

Official Title
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The Effectiveness of Preoperative Neutrophil-to-lymphocyte and Platelet-to-lymphocyte Ratio in Predicting the Incidence of Nausea and Vomiting After Total Knee Replacement in Hemophilia A

Conditions
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Hemophilia A

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: The patients with hemophilia A undergoing unilateral total knee arthroplasty. The age of the patients ranged from 18 to 70 years. American Society of Anesthesiologists is graded as I III No history of mental illness No history of antiemetic and anticholinergic drugs. No history of serious gastrointestinal diseases. Exclusion Criteria: Patients who have received long-term steroid treatment Patients who need more than 2.5 mg neostigmine to reverse muscle relaxants Patients with previous malignant tumor, malabsorption, morbid obesity, hypogonadism, thyroid and parathyroid diseases and autoimmune diseases.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 70 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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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Incidence of PONV in patients with hemophilia A receiving general anesthesia orders for knee arthroplasty | PONV was defined as the onset of nausea or vomiting within 24 hours after surgery | up to 24 hours after surgery | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The amount of postoperative antiemetics | antiemetics includes ondansetron, metoclopramide, dexamethasone | up to 24 hours after surgery | 
| VAS score after returning to the ward | postoperative pain can be evaluated using the visual analogue scale (0-10 score, 0: no pain, 10: worst imaginable pain). | immediately after returning to the ward | 
| Usage of PCIA | the use of postoperative patient controlled intravenous analgesia | up to 24 hours after surgery | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Neutrophil, Lymphocyte, Platelet, Hemophilia, Post-operative nausea and vomiting