Active clinical trials for "Postoperative Nausea and Vomiting"

Postoperative nausea and vomiting (PONV) persists as one of the more common complications of surgery. Although rarely life-threatening, it is the postoperative outcome that is most unfavorable to patients, even more undesirable than pain. Orthognathic surgery corrects conditions of the jaws and face related to structure, growth, sleep apnea, bad bite, or congenital malformations. The bones of the face and jaws are cut and placed in a new position. There is a high rate of PONV in orthognathic surgery (56%). It is particularly challenging to the patient as their jaws are kept closed together with wires or elastic bands. Nausea in a patient with restricted mouth opening can be psychologically unnerving and puts them at risk for fluid in their lungs. Gan and colleagues showed a higher efficacy of aprepitant over ondansetron in preventing PONV and nausea severity after open abdominal surgery. From this study, the FDA approved the use of aprepitant for PONV prevention in patients >18 years of age. Gan suggested further investigation in different populations. Our randomized, double-blind, prospective study will compare the efficacy of aprepitant PO versus ondansetron IV in a high risk setting for PONV: adolescents undergoing orthognathic surgery. Our study will involve 200 consecutive, adolescent patients (ages 15-25) who will undergo at least a Le Fort 1 osteotomy (upper jaw surgery) under general anesthesia and require hospital admission for at least one night. We will exclude patients who are currently taking medications that have interactions with aprepitant (pimozide, terfenadine, astemizole, cisapride), those who have a known vomiting disorder such as bulimia, and those who have vomited for any reason within 24 hours of surgery. The procedure will be performed by 5 surgeons and general anesthesia will be administered by 3 anesthesiologists at one institution. A study coordinator, who will not be involved in the treatment, will create the randomization schedule in order to ensure blindness. The patients will be randomized to either of two groups: 1) aprepitant 40 mg PO 2) ondansetron 4 mg IV. Appropriate verbal and written consent will be obtained by the priniciple investigator or surgeon. On the day of the procedure, all patients will receive a pill (aprepitant or aprepitant placebo) at least 1 hour prior to induction of anesthesia and an IV infusion (ondansetron or saline) over 2-5 minutes prior to intubation. The timing and doses of medications will be consistent with manufacturer's recommendations. An established protocol will ensure every patient will receive the same anesthetic regiment. Patient's fluid status will be closely monitored and hydrated appropriately according to known fluid balance calculations. Efficacy will be assessed based on criteria set by Gan et al and will be based on the presence/absence of a vomiting episode, use of rescue medication and subjective evaluation of nausea. Patients will be monitored continuously in the PACU and on the hospital floor by the caring team (nurse, resident, anesthesiologist, surgeon) for any emetic episode or use of rescue therapy. An emetic episode is defined as an act of vomiting (oral expulsion of stomach contents) or retching (non-productive vomiting). Nausea will be assessed at intervals of 0, 2, 6, 24 hours after surgery with T0 being time of extubation. Patients will rate nausea on a 11-point verbal rating scale, with 0 being "not nausea" to 10 being "the worst nausea." Rescue medication will be offered if the patient has more than one episode of vomiting or retching, if the patient has nausea lasting longer than 15 minutes, or if the patient requests it for established nausea or vomiting.

SPECIFIC AIMS Assess risk factors for nausea and vomiting in c-section patients undergoing regional anesthesia Quantify the incidence of nausea and vomiting intraoperatively and postoperatively in the ginger and placebo groups. Quantify post-operative analgesia and pruritus in the ginger and placebo groups Quantify patient satisfaction of the ginger and placebo groups Assess patient expectation of ginger on post-op day three

This study is being conducted to see if adding GW679769 (casopitant) to ZOFRAN will significantly decrease the number of patients who experience nausea and vomiting after surgery.

The objective of this study is to determine if caffeine 500 mg intravenously is efficacious when added to standard anti-emetic prophylaxis in the prevention of post-operative nausea and vomiting (PONV) in patients undergoing ambulatory surgery under general anesthesia.

Second only to pain, nausea and vomiting are the most uncomfortable complications of surgery and anesthesia. Unfortunately, our best defense against post-operative nausea and vomiting, a medicine called ondansetron (Zofran), is in dire national shortage. Consequently, non-pharmacological methods of prevention and treatment for post-operative nausea and vomiting have increased import. Following emergence from general anesthesia, children often request food and drink. There have been no studies to date that definitively determine the optimal first food or drink choice for these children. This study proposes to randomize children to either water or juice first intake following surgery. The investigators expect to find that children who consume glucose are less likely to vomit than those who first receive water.

Anesthesia, especially for laparoscopic surgery, can cause post-operative nausea and vomiting. Most patients are given two drugs, decadron and ondansetron, to try to minimize this. This study is to determine if a new drug, aprepitant, would add any benefit in terms of post-op nausea prevention. All laparoscopic cholecystectomy study patients will receive decadron and ondansetron. Half the patients will receive aprepitant in addition. The other half will receive placebo. The study will be randomized and double-blind.

A new intravenous medication is being tested for the prevention of the nausea and vomiting that occurs after surgery. This new medication is being compared to another intravenous medication that is already available to patients for this indication.

This study is designed to examine the incidence of postoperative nausea and vomiting during 24 hours after elective laparoscopic cholecystectomy in patients receiving preoperative intravenous fluid loading (group F), ondansetron (group O) and receiving neither fluid nor ondansetron or control group (group C).

The first hypothesis of the study is that substituting fentanyl by esmolol and metoprolol during general anesthesia for patients undergoing mastectomy will result in less pain and less narcotic consumption in the recovery room. The investigators will also verify the impact of that substitution on nausea and vomiting, on the time spent in the recovery room and on chronic postsurgical pain (3 and 6 months). Finally, the investigators will see the impact on breast cancer recurrence 5 years after the surgery.

Morbidly obese patients are at high risk for Postoperative Nausea and Vomiting (PONV) after surgery and general anesthesia. The results of our observational study indicate that 42.7% of patients require medication to treat PONV in the first 24 hours after bariatric surgery despite our aggressive perioperative approach with triple prophylaxis. Common risk factors for PONV are the use of intraoperative narcotics and anesthetic gases. Preliminary results of multimodal postoperative analgesia in the first 24 hours lead to a reduction of narcotic consumption, desaturations and use of antiemetic medication. Our study hypothesis is that different types of anesthetics reduce PONV further. Patient would be randomly assigned to receive either our current intraoperative management or a narcotic free, total intravenous general anesthetic (TIVA). The investigators hope to improve patients' satisfaction by reducing PONV in the postoperative period.