Behnam Hosseini; Faramarz Mosaffa; Shideh Dabir; Hamed Tanghatari; Mehrdad Taheri
Volume 7, Issue 2 , April 2019, , Pages 130-136
Abstract
Objective: To evaluate the evolution pattern of epidural block after rotating the needle tip 45° to the operative side and evaluate its effects on patients’ hemodynamics and recovery profile in those undergoing arthroscopic knee surgery.Methods: Forty participants were randomly subdivided into ...
Read More
Objective: To evaluate the evolution pattern of epidural block after rotating the needle tip 45° to the operative side and evaluate its effects on patients’ hemodynamics and recovery profile in those undergoing arthroscopic knee surgery.Methods: Forty participants were randomly subdivided into control and rotation group (n=20). An 18-gauge, 3.5 inch, Tuohy needle was placed at the level of L4-5 and pushed forward into the epidural space through parasagittal approach, in control group, the needle was pushed forward to the epidural space in cephaldad 90 degrees. For the rotation group, the needle was pushed forward to the epidural space and the tip was rotated 45 degrees to the surgical side.15 mL of bupivacaine 0.5% was injected and evolution of sensory and motor blocks until 2-segment regression of the sensory level below to T10 as well as total duration of motor block and surgery were recorded. Hemodynamic parameters (HR, MAP, and SPO2), hypotension, fluid intake, vasopressors, first ambulation and spontaneous urination were recorded. Statistical analysis was performed using SPSS and P≤0.5 considered significant.Results: Sensory block up to T10 level, Complete motor block and time for 2-segment regression of sensory level were earlier in the 45°-rotation than in the control group (p<0.001).Total duration of motor block in control group was lower than rotation group (p<0.001).Hypotension, N&V, vasopressors and fluid intake showed no statistically difference between the two groups (p=0.219). First spontaneous urination and ambulation were significantly lower in rotation group (p<0.001).Conclusion: 45 degrees’ needle rotation to the surgical side provides a faster block evolution and hastened recovery profile with no significant difference in hemodynamic fluctuations.Clinical trial registry: IRCT20130518013364N7
Masoud Hashemi; Payman Dadkhah; Mehrdad Taheri; Sirous Momenzadeh; Tahereh Parsa; Behnam Hosseini; Mohammadreza Abbasian
Volume 7, Issue 2 , April 2019, , Pages 150-155
Abstract
Objective: To compare the efficacy of parasagittal interlaminar (PIL) and midline interlaminar (MIL) approaches for epidural block in patients with lower limb orthopedic surgery. Methods: This double-blind randomized clinical trial was performed on 40 patients undergoing tibial shaft fracture surgery. ...
Read More
Objective: To compare the efficacy of parasagittal interlaminar (PIL) and midline interlaminar (MIL) approaches for epidural block in patients with lower limb orthopedic surgery. Methods: This double-blind randomized clinical trial was performed on 40 patients undergoing tibial shaft fracture surgery. In PIL group, an 18-gauge, 3.5 inch, Tuohy needle was placed at the level of L2-3 or L3-4 intervertebral spaces and pushed forward in a posteroanterior (PA) direction vertical to the body surface. After determining the most lateral place for needle arrival in an anteroposterior (AP) view, needle was pushed forward into the epidural space. For the MIL group, needle was pushed forward from the midline interspinous space with the same method. After confirmation of needle position, 1 mL of contrast was injected to confirm the epidural space distribution and then 15 ml lidocaine 2% was injected. The sensory and motor block level, onset, duration, heart rate (HR), mean arterial pressure (MAP), and arterial oxygen saturation (SPO2), and success rate were recorded.Results: Mean patients’ baseline characteristics showed no statistically significant difference between the two groups. (p>0.05). Outcome measures were statistically different and significantly higher in PIL group (p-values for sensory block level
