Adegboye M B, Bolaji B O, Ibraheem G H
Department of Anaesthesia, University of Ilorin Teaching Hospital, Ilorin, Nigeria.
Department of Surgery,University of Ilorin TeachingHospital, Ilorin,Nigeria.
J West Afr Coll Surg. 2017 Jan-Mar;7(1):113-127.
One of the factors that determine success of an epidural anaesthetic is correctly locating the epidural space. Being able to predict the skin to lumbar epidural space distance can serve as a guide to performing epidural anaesthesia and in turn increase the success rate.
To determine the correlation between the BMI, gender and age on SLESD of adults scheduled for elective surgical procedure under lumbar epidural anaesthesia.
It was across sectional descriptive study carried out on consenting patients scheduled for elective surgery under lumbar epidural anaesthesia.
The study was carried out in the main theatre complex and the obstetric theatre of the University of Ilorin Teaching Hospital, Ilorin, Nigeria.
One hundred and twenty patients of ASAI and II physical status between the ages of18-65years scheduled for elective surgical procedures under epidural anaesthesia were enrolled into the study. This was a cross sectional descriptive study involving both sexes. Using a septic technique epidural anaesthesia was established in the sitting position using the midline approach at L3/L4orL4/L5 interspace. The epidural space was identified by loss of resistance to air. TheSLESD in centimetres (cm) was rounded up to the nearest 0.25cm. Data were collected and analyzed using Spearman´s correlation to evaluate the relationship between BMI, weight, sex, age, height and the SLESD.
The mean SLESD was 4.60±0.83 cm with a range of 3cm-8cm. The SLESD was significantly influenced by BMI and weight with both having positive correlation and P value of 0.001 and 0.004 respectively. We formulated a relationship between skin to lumbar epidural space and body mass index based on linear regression analysis: Depth cm= a + b × (BMI)Where a =3.33 and b =0.05.There was no correlation between SLESD and height, age or sex of the patients.
There was positive linear correlation between the body mass index, body weight and the skin to lumbar epidural space distance. Whereas, the age, sex and height had no correlation with the skin to lumbar epidural space distance.
决定硬膜外麻醉成功的因素之一是正确定位硬膜外间隙。能够预测皮肤至腰段硬膜外间隙的距离可作为实施硬膜外麻醉的指导，进而提高成功率。
确定接受择期手术的成年患者在腰段硬膜外麻醉下的体重指数（BMI）、性别和年龄与皮肤至腰段硬膜外间隙距离（SLESD）之间的相关性。
这是一项对同意接受腰段硬膜外麻醉下择期手术的患者进行的横断面描述性研究。
该研究在尼日利亚伊洛林大学教学医院的主手术室和产科手术室进行。
将120例年龄在18至65岁之间、美国麻醉医师协会（ASA）身体状况分级为I级和II级、计划接受硬膜外麻醉下择期手术的患者纳入研究。这是一项涉及两性的横断面描述性研究。采用无菌技术，患者取坐位，在L3/L4或L4/L5椎间隙采用中线入路建立硬膜外麻醉。通过空气阻力消失来确定硬膜外间隙。将以厘米（cm）为单位的SLESD四舍五入到最接近的0.25cm。收集数据并使用Spearman相关性分析来评估BMI、体重、性别、年龄、身高与SLESD之间的关系。
SLESD的平均值为4.60±0.83cm，范围为3cm至8cm。SLESD受BMI和体重的显著影响，两者均呈正相关，P值分别为0.001和0.004。基于线性回归分析，我们建立了皮肤至腰段硬膜外间隙与体重指数之间的关系：深度（cm）=a + b×（BMI），其中a = 3.33，b = 0.05。SLESD与患者的身高、年龄或性别之间无相关性。
体重指数、体重与皮肤至腰段硬膜外间隙距离之间存在正线性相关。而年龄、性别和身高与皮肤至腰段硬膜外间隙距离无关。
