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Biomedical subjects

B K Wagner

Publications and source records attributed to B K Wagner.

23 records · Page 2Linked to original sources

Retrospective analysis of postoperative nausea and vomiting to determine antiemetic activity of droperidol added to propofol: a possible drug interaction.

Propofol decreases the frequency of postoperative nausea and vomiting. We investigated whether its antiemetic activity could be improved further by coadministration of droperidol. We retrospectively reviewed the records of 266 women who underwent laparoscopic operations with nitrous oxide anesthesia and thiopental or propofol induction. The records were screened for frequency and time of occurrence of nausea and vomiting, concurrent drug use, duration of surgery, and times of recovery room admission and discharge. The combination of droperidol and thiopental decreased the frequency of nausea and vomiting over droperidol plus propofol, propofol alone, and thiopental alone. The addition of droperidol to propofol anesthesia doubled the frequency of multiple nausea and vomiting episodes, suggesting a possible interaction between the drugs. We cannot recommend that droperidol be added to propofol anesthesia for prophylaxis of postoperative nausea and vomiting.

Antiemetics↗

Faculty have few incentives for becoming board certified in pharmacotherapy.

A telephone survey of all colleges of pharmacy in the United States (including Puerto Rico) and Canada was conducted to assess the incentives offered for pharmacy practice faculty to become board-certified pharmacotherapy specialists (BCPS). Board certification is not a requirement for employment at any college of pharmacy; however, it plays a part in promotion, tenure, and merit salary increases at several schools. Fewer than half of the schools provide at least partial reimbursement of examination-related expenses. Sixteen have initiated BCPS study groups. We perceive that faculty must have more incentives to take the examination. It may be difficult to change institutional policies regarding merit increases or promotion and tenure, but colleges of pharmacy can do more to decrease the cost burden and to promote study groups within the department.

Canada↗

A double-blind, placebo-controlled evaluation of intranasal metoclopramide in the prevention of postoperative nausea and vomiting.

Nausea and vomiting are common complaints in the postoperative period and contribute to patient distress and delay of discharge for outpatient surgical procedures. Laparoscopic procedures are associated with a high incidence of postoperative nausea and vomiting (PONV) episodes. Parenteral use of metoclopramide prevents and treats PONV. The intranasal route provides rapid and complete absorption of metoclopramide without many of the adverse effects observed with parenteral administration of the drug. We performed a prospective, double-blinded, randomized, placebo-controlled study to evaluate the safety and efficacy of metoclopramide 20 mg administered intranasally for emetic prophylaxis in laparoscopic surgery patients. The results from 109 patients enrolled in the study showed that this intranasal dose of metoclopramide may be ineffective in preventing the occurrence of PONV. The poor performance of the intranasal metoclopramide formulation in this study cannot be attributed to patient-specific and perioperative factors. It may be due to an inadequate dose or slow absorption of the drug. The small sample size, however, may also have been a factor.

Administration, Intranasal↗

Pharmacoeconomic analysis of sevoflurane versus isoflurane anesthesia in elective ambulatory surgery.

This study investigated the economic aspects of sevoflurane and isoflurane anesthesia in 47 healthy women undergoing elective ambulatory surgery, as part of a randomized, prospective clinical trial. Patient records were analyzed for anesthetic; duration of surgery, anesthesia, and recovery room stay; and associated charges. Sevoflurane is shorter acting than isoflurane, but it was not associated with a shorter duration of anesthesia or surgical unit stay, or earlier hospital discharge. Total charges associated with sevoflurane anesthesia were greater than those for isoflurane ($2641 and $2230, respectively) and primarily related to prolonged anesthesia and surgical unit stay. A minor decrease in recovery room charges ($15) associated with earlier discharge was observed with sevoflurane (p>0.05), but the agent was not associated with lower hospital charges. Larger trials and assessment of other patient populations may show sevoflurane to be more pharmacoeconomically advantageous than isoflurane.

Adult↗

Patient recall of therapeutic paralysis in a surgical critical care unit.

STUDY OBJECTIVE: To investigate patient recall of therapeutic paralysis (TP) in a surgical critical care unit. DESIGN: Prospectively applied structured interview of patients undergoing TP over 18 months. SETTING: Surgical critical care unit with 27 beds at a tertiary care university teaching hospital. PATIENTS: Forty patients admitted for postoperative care after coronary artery bypass graft surgery, trauma, or gastrointestinal surgery. INTERVENTIONS: Patients received TP and concurrent sedation with benzodiazepines, propofol, and narcotics. MEASUREMENTS AND MAIN RESULTS: After the end of TP patients were asked to recall the experience, and their responses were ranked on a four-point ordinal scale. Four of 11 patients recalled mostly negative events and experiences with TP, such as sleeplessness, discomfort, pain, anxiety, and inconsistent caregiver communication. All patients with recall experienced fear, anxiety, and sleeplessness. Single-drug therapy with propofol and inadequate benzodiazepine dosing were linked to patient recall. CONCLUSIONS: Patient recollection from TP may be more common than appreciated and is generally unpleasant. Adequate dosing with benzodiazepines and narcotics is warranted to prevent recall and discomfort.

Adolescent↗