The impact of ketamine on delayed neurocognitive recovery in elderly patients undergoing spinal anaesthesia for orthopaedic procedures, a pilot study.

OBJECTIVE: Delayed neurocognitive recovery is an objectively measurable decline in the cognitive status at varying intervals after surgery under both general and spinal anaesthesia. In this study, we used the Short Portable Mental Status Questionnaire to evaluate the protective effect of ketamine infusion on cognitive function of elderly patients undergoing spinal anaesthesia for orthopaedic procedures. METHODS: A randomised, double-blinded placebo-controlled trial. Forty-two geriatric patients listed for elective orthopaedic surgery under spinal anaesthesia were randomly assigned to receive an intravenous infusion of either ketamine (0.3mg/kg) or isotonic saline (control group) after receiving spinal anaesthesia, which continued throughout the procedure. Cognitive performance was evaluated, as a primary outcome, with Short Portable Mental Status Questionnaire. RESULTS: Baseline cognitive performance was comparable in both groups. Patients in the ketamine group showed statistically significant fewer errors in the postoperative Short Portable Mental Status Questionnaire compared with the baseline evaluations (p = 0.038). Patients in the ketamine group showed significantly lower verbal numerical scale scores than the control group (p = 0.04) at six hours after surgery. CONCLUSION: Elderly patients undergoing spinal anaesthesia showed a better cognitive status after receiving an intravenous infusion of 0.3mg/kg ketamine. However, further research with a larger sample size and different assessment tools might be required to verify our results.

Development and validation of a daily assessment tool for critically ill patients.

BACKGROUND: Patients in intensive care units require comprehensive care. Hence, improving health care quality depends on accurate assessment and documentation. AIM: To develop and validate the content of an assessment sheet for critically ill patients. STUDY DESIGN AND METHODS: A Delphi design study was conducted between January and March 2020. The content validity index (CVI) was used to calculate the degree of agreement among the experts to analyse the instrument and the entire set of items. Content validity was determined by seven experts (three critical care nursing professionals, two critical care doctors, and two anaesthesiologists) using a four-point Likert scale. They evaluated the items in terms of the following: 1 = "irrelevant," 2 = "somewhat relevant if the phrasing is profoundly adjusted," 3 = "relevant with some adjustment as to phrasing," and 4 = "very relevant." The CVI was applied, and the accepted value was ≥0.50. RESULTS: Three rounds of evaluation were required to achieve the minimum index. The items were reviewed for content and face validity. The instrument was validated with 86 items with a total CVI of 0.90, a face validity of 1, and a scale-level content validity index/universal agreement calculation method (S-CVI/UA) value of 0.813. CONCLUSION: This instrument can help nurses, doctors, academics, and students assess patients in intensive care units. RELEVANCE TO CLINICAL PRACTICE: The daily assessment tool may provide a systematic and consistent approach to critically ill patients' assessment to guide interventions.

Hemodynamic and antiemetic effects of prophylactic hyoscine butyl-bromide during cesarean section under spinal anesthesia: a randomized controlled trial.

BACKGROUND: Abrupt bradycardia and hemodynamic instability during spinal anesthesia for cesarean section are not uncommon and are considered as one of the primary causes of intraoperative nausea and vomiting (IONV). We hypothesized that prophylactic use of hyoscine butyl-bromide (HBB) could improve hemodynamics and reduce IONV in parturients undergoing cesarean section. METHODS: A randomized, double-blind placebo-controlled trial was carried out in a tertiary university hospital, patients scheduled for elective cesarean section were equally randomized to receive either IV HBB 20 mg in 1 ml (Hyoscine group) or the same volume of 0.9% saline (Control group), one minute after spinal anesthesia. The primary endpoint was the incidence of intraoperative bradycardia (HR < 50 beats min-1). Secondary endpoints included changes in mean arterial blood pressure (MAP), the incidence of Intraoperative and Postoperative nausea or vomiting (IONV & PONV), the fetal heart rate and, Apgar score. RESULTS: Of the 160 subjects randomized, 80 received HBB and 80 received placebo. There was a significant reduction in the incidence of the primary endpoint of intraoperative bradycardia (HR < 50 beats min-1) in the Hyoscine group (0% vs 10%; OR = 0.05, 95% CI = [0.003, 0.93]; P = 0.004) compared with placebo. MAP showed an insignificant difference between groups over time. HBB significantly decreased incidences of IONV and PONV (p = 0.002 & 0.004) respectively. CONCLUSIONS: In parturients undergoing cesarean section under spinal anesthesia, pretreatment with intravenous HBB was a safe measure for both the mother and the baby to reduce the risk of severe intraoperative bradycardia, but not hypotension. Furthermore, it was associated with less incidence of both IONV and PONV. TRIAL REGISTRATION: https://clinicaltrials.gov/ct2/show/NCT04069078.

Effect of Eye Masks on Pain and Sleep Quality in Patients Undergoing Cardiac Surgery: A Randomized Controlled Trial.

BACKGROUND: Impaired sleep is a common complaint among patients undergoing major surgery and may be a contributing factor in postoperative pain. The provision of eye masks to patients after cardiac surgery may reduce postoperative pain through improvements in sleep quality. OBJECTIVE: To examine the effect of nocturnal eye masks on postoperative pain and sleep quality in cardiac surgical patients. METHODS: In this randomized controlled trial, 70 adult patients who had undergone cardiac surgery requiring immediate postoperative care in the intensive care unit were randomly assigned to sleep with or without nocturnal eye masks for the first 3 nights in the unit. A visual analog scale was used to assess pain intensity, and the Arabic version of the Richards-Campbell Sleep Questionnaire was used to assess subjective sleep quality. RESULTS: A total of 66 patients completed the trial. A statistically significant difference was found between groups in mean total Richards-Campbell Sleep Questionnaire score over the 3-day study period (P = .001), with the intervention group reporting better sleep quality. A statistically significant difference was also found between groups in mean pain score on days 1, 2, and 3 (P < .001), with the intervention group having less pain. CONCLUSION: Nocturnal eye masks are a simple, low-risk, low-cost intervention that may contribute to reductions in perceived pain in cardiac surgery patients.

Effects of terlipressin infusion during hepatobiliary surgery on systemic and splanchnic haemodynamics, renal function and blood loss: a double-blind, randomized clinical trial.

BACKGROUND: Terlipressin, in general, is a vasopressor which acts via V1 receptors. Its infusion elevates mean blood pressure and can reduce bleeding which has a splanchnic origin. The primary outcome was to assess the impact of intraoperative terlipressin infusion on portal venous pressure during hepatobiliary surgery; the 2ry outcomes included effects upon systemic hemodynamics, estimated blood loss, and postoperative renal functions. METHODS: This prospective randomized study involved 50 patients undergoing hepatobiliary surgery who were randomly and equally allocated into terlipressin group, or a control group. The terlipressin group received an initial bolus dose of (1 mg over 30 min) followed by a continuous infusion of 2 µg/kg/h throughout the procedure and gradually weaned over the first four postoperative hours, whereas the control group received the same volumes of normal saline. The portal venous pressure changes were measured directly through a portal vein angiocatheter. RESULTS: Portal pressure was significantly reduced over time in the terlipressin group only (from 17.88 ± 7.32 to 15.96 ± 6.55 mmHg, p < .001). Mean arterial blood pressure was significantly higher in the terlipressin group. Estimated blood loss was significantly higher in the control group than the terlipressin group (1065.7 ± 202 versus 842 ± 145.5 ml; p = 0.004), and the units of packed RBCs transfused were significantly higher in the control group ((0-2) versus (0-4) p = 0.003). There was no significant difference between groups as regards the incidence of acute kidney injury. CONCLUSION: Intraoperative infusion of terlipressin during hepatobiliary surgery was shown to improve intraoperative portal hemodynamics with subsequent reduction in blood loss. TRIAL REGISTRATION: Clinical trial number and registry URL: Trial registration number: NCT02718599 . Name of registry: ClinicalTrials.gov. URL of registry: https://clinicaltrials.gov/ct2/show/NCT02718599 . Date of registration: March 2016. Date of enrolment of the first participant to the trial: April 2016.

Three minutes propofol after sevoflurane anesthesia to prevent emergence agitation following inguinal hernia repair in children: a randomized controlled trial.

BACKGROUND: Emergence agitation (EA) is a common problem after sevoflurane anesthesia among children. There have been mixed results with control of EA using propofol 1 mg/kg bolus following sevoflurane anesthesia. An infusion of 3 mg/kg of propofol over 3 min following sevoflurane anesthesia has been found to be promising in children undergoing magnetic resonance imaging scans. However, no studies have been conducted during surgical procedures. We aimed to examine the efficacy of transition to propofol for 3 min after cessation of sevoflurane anesthesia in children undergoing inguinal hernia repair. METHODS: In this prospective randomized controlled trial, 64 children aged 1-12 years, scheduled for inguinal hernia repair, were randomized to receive either propofol 3 mg/kg over 3 min (propofol group) or no propofol (control group), after the cessation of sevoflurane anesthesia. EA was assessed using the Paediatric Emergence Anesthesia Delirium (PAED) scale and the Watcha scale. Emergence time and the duration of post-anesthesia care unit (PACU) stay were also recorded. RESULTS: The incidence of ED was lower in the propofol group on both the PAED (81.3% vs. 15.6%, P < 0.001) and the Watcha (78.1% vs. 15.6%, P < 0.001) scales. The mean emergence time was 6.37 minutes longer in the propofol group with no significant difference in PACU times. CONCLUSIONS: Transition to propofol 3 mg/kg over 3 min following sevoflurane anesthesia reduces the incidence of EA and improves the quality of emergence. Although emergence times were longer, the duration of stay in the PACU was similar with propofol use.

Pre-emptive ketorolac for prevention of intraoperative shoulder pain in patients undergoing cesarean section: A double blind randomized clinical trial.

BACKGROUND: Shoulder pain is a commonly observed but mostly neglected consequence of cesarean section and little is known as well as explored about intraoperative shoulder pain. We conducted this randomized prospective double-blinded study to evaluate the efficacy of ketorolac in reducing the incidence and severity of intraoperative shoulder pain in patients undergoing cesarean section. METHODS: Two hundred ASA I and II patients scheduled to undergo elective cesarean section under spinal anesthesia were randomized to receive either intravenous ketorolac 30 mg (ketorolac group) or normal saline (control group). The primary outcome was the incidence of intraoperative shoulder pain. Secondary outcomes were severity of intraoperative shoulder pain, amount of intraoperative blood loss, incidence of hypotension, bradycardia and request for intraoperative rescue analgesia. RESULTS: The incidence of intraoperative shoulder pain in the control group was significantly higher than the ketorolac group (P = 0.003). Severity of shoulder pain and requests for intraoperative analgesia was significantly higher in the control group (P = 0.012, P = 0.006 respectively). Patients in the Ketorolac group experienced significantly higher incidences of bradycardia (P = 0.037). CONCLUSION: 30 mg ketorolac administered intravenously just before the operation could decrease incidence and severity of intraoperative shoulder pain in patients undergoing cesarean section. CLINICAL TRIAL REGISTRATION: ClinicalTrial.gov (Registration number: NCT02380898, first registered in 01/03/2015).

Significantly prolonged spinal anesthesia with the addition of dexamethasone: a case report.

The purpose of the study is to highlight that prolonged blocks with spinal anesthesia are not usually due to neurologic defects. Consent for data publication was obtained. A 35-year-old female patient with right upper tibial chondrosarcoma was planned to undergo excision and reconstruction with a free vascularized fibular graft. The patient had no significant medical history. We gave spinal anesthesia, which is to be continued with general anesthesia after regression of the sensory level. After 3 hours, we evaluated the patient for the second time to find sensory block at T10 level. It was decided to carry out these evaluations hourly and wait for general anesthesia. Ten hours after the spinal anesthesia, the sensory block was still at T10 level. After 13 hours, the surgical procedure was finished, and the sensory block was still at T10 level and the motor block according to the Bromage scale remained at grade 4. A computed tomography was performed and did not reveal signs of spinal compression, spinal canal stenosis, or other anomalies (magnetic resonance imaging was unavailable). A complete motor and sensory recovery from the spinal block was observed 20 hours after spinal anesthesia. We present a case of major microscopic surgery done over 13 hours with a single shot of spinal anesthesia in a 35-year-old female patient. Complete recovery of sensory and motor blocks has been after 20 hours. We also review other cases of unusually prolonged spinal blocks and the possible differential diagnosis for that.