Objective: The purpose of this study was to quantitatively evaluate if the use of the optic nerve sheath diameter (ONSD) can be a suitable noninvasive surrogate approach for repeated invasive intracranial pressure (ICP) measures. Methods: The study used a sample of 22 adult patients with traumatic brain injury (TBI) from an in intensive care unit (ICU). ICP levels were measured using the gold standard and recorded in cmH20. ONSD was measured using ultrasonography with 5.6-5.7 MHz linear probe and recorded in millimeters. The data analysis was done using STATA software version 15. Results: The results showed a strong positive correlation between ICP and ONSD (r = 0.743, p = 0.001). The accuracy of the sonographic ONSD declined over time, starting from a high of 90.9% at the baseline and declining to a low of merely 20.0% after 48 hours. Conclusion: These findings indicate that the ONSD approach could be very useful alternative and noninvasive method for monitoring ICP.

Background: Renal colic is one of the most common urologic diseases that constitutes the majority of the emergency department (ED) patients. Intravenous ketorolac is usually prescribed for adequate pain control, but it is usually insufficient and morphine is required. The starting time and amount of morphine needed for acute renal colic is still under discussion. Methods: This prospective, observational study was conducted for 6 months at ED of Sina hospital, Tehran, Iran. 44 patients were investigated. pain intensity with numeric rating scale (NRS) were observed at baseline and then continued every 5 min for 2hr. Patients were received ketorolac (30 mg) and if NRS>6 morphine loading dose (0.05mg/kg) initially if NRS>6. morphine rescue dose ordered if the NRS remain >6. Morphine consumption pattern was the primary outcome. Also total morphine dose, time to reach NRS<4, and adverse reaction were evaluated. Results: At baseline, almost all patients had NRS>6, and about 65.8% had history of renal colic. The mean NRS was 8.98(±0.98), Therefore, all patients required a loading dose of morphine and 50% received at least one rescue dose. The patient with history of renal colic had higher NRS score at baseline, prolonged pain, higher total morphine dose and rescue dose. There wasn’t any significant side effect occurred. Conclusion: Patients with acute renal colic have severe pain and should receive morphine primarily. In addition, patients with a history of renal colic had higher pain intensity scores, and required higher morphine doses.

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Background: Several studies have examined the possible role of beta-blockers, including esmolol, in controlling intracranial pressure (ICP). This study aimed to evaluate the effect of esmolol on ICP in patients with severe traumatic brain injury. Methods: In this case-control study, all TBI patients with ICP > 20 cmH2O, who were admitted to ICU during the study period, were included. Some patients received standard treatment plus esmolol (500 μg/kg and then 50 mg/kg/min for 24 hours), and some others just received standard treatment with no esmolol. The patients were monitored, and the ICP measurement was performed via inserted intra-ventricular catheter. The ICP and vital signs were measured and recorded before, 8, 16, and 24 hours after starting the treatment in the two groups, and the findings were then compared. Results: Twenty-two patients (13 males and 9 females) were included in this study, of whom 12 patients received esmolol, and 10 patients were in the control group. The mean age of those who received esmolol was smaller than those who did not receive it (46.6 ± 18.5 vs. 62.3 ± 19.1 years; P = 0.08). Moreover, the mean length of the ICU stay was smaller in the esmolol receivers than the control group (5.6 ± 1.1 vs. 17.3 ± 7.7 days; P = 0.04 (there was no significant difference between the two groups in terms of mortality rates (P = 0.30). The variations of the vital signs over time was not significantly different between the two groups (P > 0.05); however, the mean of ICP was lower in those who received esmolol compared to the control group at all checkpoints (P < 0.05). Conclusions: Those patients with TBI who received esmolol as part of their ICP control management in ICU had lower ICP than those who received no esmolol.