Alicia M. Kowalski

Prospective randomized trial of paravertebral block for patients undergoing breast cancer surgery.

BACKGROUND The goal of the current study was to evaluate the effect of regional anesthesia using paravertebral block (PVB) on postoperative pain after breast surgery. METHODS Patients undergoing unilateral breast surgery without reconstruction were randomized to general anesthesia (GA) only or PVB with GA and pain scores assessed. RESULTS Eighty patients were randomized (41 to GA and 39 to PVB with GA). Operative times were not significantly different between groups. Pain scores were lower after PVB compared to GA at 1 hour (1 vs 3, P = .006) and 3 hours (0 vs 2, P = .001) but not at later time points. The overall worst pain experienced was lower with PVB (3 vs 5, P = .02). More patients were pain-free in the PVB group at 1 hour (44% vs 17%, P = .014) and 3 hours (54% vs 17%, P = .005) postoperatively. CONCLUSIONS PVB significantly decreases postoperative pain up to 3 hours after breast cancer surgery.

A Prospective, Randomized, Controlled Trial of Paravertebral Block versus General Anesthesia Alone for Prosthetic Breast Reconstruction.

Background: Paravertebral blocks have gained popularity because of ease of implementation and a shift toward ambulatory breast surgery procedures. Previous retrospective studies have reported potential benefits of paravertebral blocks, including decreased narcotic and antiemetic use. Methods: The authors conducted a prospective controlled trial of patients undergoing breast reconstruction over a 3-year period. The patients were randomized to either a study group of paravertebral blocks with general anesthesia or a control group of general anesthesia alone. Demographic and procedural data, in addition to data regarding pain and nausea patient-reported numeric scores and consumption of opioid and antiemetic medications, were recorded. Results: A total of 74 patients were enrolled to either the paravertebral block (n = 35) or the control group (n = 39). There were no significant differences in age, body mass index, procedure type, or cancer diagnosis between the two groups. Patients who received a paravertebral block required less opioid intraoperatively and postoperatively combined compared with patients who did not receive paravertebral blocks (109 versus 246 fentanyl equivalent units; p < 0.001), and reported significantly lower pain scores at 0 to 1 (3.0 versus 4.6; p = 0.02), 1 to 3 (2.0 versus 3.2; p = 0.01), and 3 to 6 (1.9 versus 2.7; p = 0.04) hours postoperatively. The study group also consumed less antiemetic medication (0.7 versus 2.1; p = 0.05). Conclusions: Incorporating paravertebral blocks carries considerable potential for improving pathways for breast cancer patients undergoing breast reconstruction—with minimal procedure-related morbidity. This is the first prospective study designed to assess paravertebral blocks in the setting of prosthetic breast reconstruction. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, II.

A case series of thoracic paravertebral blocks using a combination of ropivacaine, clonidine, epinephrine, and dexamethasone

Five patients who underwent surgery for breast cancer were followed for 6 days after placement of a multiple-injection, one-time paravertebral block. Data were collected on patient satisfaction, analgesic consumption, side effects, and complications. Ropivacaine as a sole agent in paravertebral blocks has a clinical duration of up to 6 hours. The addition of epinephrine, clonidine, and dexamethasone prolonged the clinical duration considerably.

Length of Stay in Ambulatory Surgical Oncology Patients at High Risk for Sleep Apnea as Predicted by STOP-BANG Questionnaire

Background. The STOP-BANG questionnaire has been used to identify surgical patients at risk for undiagnosed obstructive sleep apnea (OSA) by classifying patients as low risk (LR) if STOP-BANG score < 3 or high risk (HR) if STOP-BANG score ≥ 3. Few studies have examined whether postoperative complications are increased in HR patients and none have been described in oncologic patients. Objective. This retrospective study examined if HR patients experience increased complications evidenced by an increased length of stay (LOS) in the postanesthesia care unit (PACU). Methods. We retrospectively measured LOS and the frequency of oxygen desaturation (<93%) in cancer patients who were given the STOP-BANG questionnaire prior to cystoscopy for urologic disease in an ambulatory surgery center. Results. The majority of patients in our study were men (77.7%), over the age of 50 (90.1%), and had BMI < 30 kg/m2 (88.4%). STOP-BANG results were obtained on 404 patients. Cumulative incidence of the time to discharge between HR and the LR groups was plotted. By 8 hours, LR patients showed a higher cumulative probability of being discharged early (80% versus 74%, P = 0.008). Conclusions. Urologic oncology patients at HR for OSA based on the STOP-BANG questionnaire were less likely to be discharged early from the PACU compared to LR patients.

Peri-Operative Takotsubo Cardiomyopathy: A Case Series

Takotsubo Cardiomyopathy (TC) is a reversible, stress-induced, non-ischemic cardiomyopathy associated with temporary weakness of the myocardium and midventricular or apical ballooning [11. Emanuele Cecchi, Guido Parodi, Cristina Giglioli, Silvia Passantino, Brunella Bandinelli, et al. (2013) Stress-Induced Hyperviscosity in the Pathophysiology of Takotsubo Cardiomyopathy. The Am J Cardiol: 1523–1529.,22. Sharkey SW, Lips DL, Pink VR, Maron BJ (2013) Daughter-Mother Tako-Tsubo Cardiomyopathy. The Am J Cardiol 137–138.]. Angina, ST abnormalities, elevated troponins, ventricular asynergy, CHF, and decreased EF are all components of TC. The unique finding is that they occur on the absence of CAD [33. Bielecka-Dabrowa A, Mikhailidis DP, Hannam S, Rysz J, Michalska M, et al. Takotsubo cardiomyopathy -The current state of knowledge. Int J Cardiol:120–125.]. In this case series with IRB approval we report three cases of post-operative cardiac symptoms that all resulted in a diagnosis of TC.

Reduction of incorrect record accessing and charting patient electronic medical records in the perioperative environment.

Opening and charting in the incorrect patient electronic record presents a patient safety issue. The authors investigated the prevalence of reported errors and whether efforts utilizing the anesthesia time-out and barcoding have decreased the incidence of errors in opening and charting in the patient electronic medical record in the perioperative environment. The authors queried the database for all surgeries and procedures requiring anesthesia from January 2009 to September 2012. Of the 115,760 records of anesthesia procedures identified, there were 57 instances of incorrect record opening and charting during the study period. A decreasing trend was observed for all sites combined (p < 0.0001) and at the off-site locations (p = 0.0032). All locations and the off-site locations demonstrated a statistically significant decreasing pattern of errors over time. Barcoding and the anesthesia time-out may play an important role in decreasing errors in incorrect patient record opening in the perioperative environment.