fa بررسی تاثیر زایمان بی درد بر ABG بند ناف نوزادان مراجعه کننده به بیمارستان اکبرآبادی بیماری‌های اطفال Pediatric Disease پژوهشي Research <strong>زمینه و هدف:</strong> بررسی ارتباط میان تاثیر زایمان بی درد بر پیامد های نوزادی همواره از موضوعات مورد توجه پژوهشگران بوده است. پژوهش حاضر پژوهش با هدف بررسی تاثیر زایمان بی درد بر <span dir="LTR">ABG</span> (گازها خون بندناف) بند ناف نوزادان مراجعه کننده به بیمارستان اکبرابادی، در سال 1396-1397 انجام گرفت.<span dir="LTR"></span><br> <strong>مواد و روش ها:</strong> &nbsp;این پژوهش یک مطالعه از نوع مقطعی &ndash; توصیفی و تحلیلی بود. طی این پژوهش 260 مادر حامله که در طول سال های 1396 و 1397 به بیمارستان اکبرآبادی تهران مراجعه نمودند در دو گروه زایمان طبیعی بدون درد و زایمان طبیعی (198 نوزاد حاصل زایمان طبیعی معمولی و 142 نوزاد حاصل زایمان طبیعی بدون درد) معمولی طبقه بندی گردیدند.&nbsp; کلیه ی اطلاعات دموگرافیک مادری (شامل سن، دفعات بارداری قبلی، نوع زایمانهای قبلی و سن حاملگی نوزادی) و اطلاعات نوزادی (وزن، نمره ی آپگار، آنالیز <span dir="LTR">PH</span>) در چک لیست مخصوص این پژوهش وارد گردیدند. اطلاعات با نرم افزار <span dir="LTR">SPSS</span> نسخه ی 20 مورد تجزیه و تحلیل قرار گرفت.<strong><span dir="LTR"></span></strong><br> <strong>یافته ها: </strong>نتایج پژوهش حاضر نشان داد که میان سطوح <span dir="LTR">PH</span>، <span dir="LTR">PCO2</span>، <span dir="LTR">HCO3</span> و آپگار بین دو گروه زایمان طبیعی معمولی و بدون درد اختلاف آماری معناداری ندارند، درحالی که میزان سطح <span dir="LTR">BE</span> (<span dir="LTR">Base Excess</span>) بین دو گروه معنادار بود.<br> <strong>نتیجه‌گیری:</strong> با توجه به نتایج میان بیشتر پارامترهای <span dir="LTR">ABG</span> (بجز <span dir="LTR">BE</span>) در دو گروه زایمان طبیعی بدون درد و زایمان طبیعی معمولی ارتباط اماری معناداری وجود نداشت که&nbsp; توصیه می شود پژوهش های تکمیلی (اختصاصی تر) با حجم نمونه ی بالاتر و بازه زمانی طولانی تر جهت بررسی بیشتر ابعاد مختلف این موضوع انجام شود. <strong>Background: </strong>Childbirth pain is considered one of the most severe labor problems and important causes of childbirths&#39; fearing for mothers (1), which has led to the use of anesthesia methods (2). The use of these methods due to a significant reduction in labor pain increases maternal satisfaction during NVD (Normal Vaginal Delivery) (3). Among these methods, the use of regional anesthesia compared to other methods has a growing trend (4). Although the use of analgesic methods can improve labor pain, there is still insufficient information about its effect on maternal and neonatal outcomes (6). One of the recent issues for researchers in this field is the relationship between umbilical cord status (ABG: Atrial Blood Gas) and painless delivery (7). &nbsp;The aim of this study was to evaluate the effect of painless delivery on ABG of the umbilical cord in neonates referred to Akbarabadi Hospital in 2018.<br> <strong>Materials and Methods:</strong> This was a cross-sectional study. The research place was Akbarabadi Hospital affiliated with Iran University of Medical Sciences. A total of 340 umbilical cord specimens of infants born through painless Normal Vaginal Delivery (NVD) (N =142) and routine NVD (N = 198) who referred to Akbarabadi Hospital in Tehran during 2018<span dir="RTL">.</span> Before starting the study, a data collection form was provided in which had demographic information about mothers including age, previous pregnancies, type of previous deliveries, and gestational age&nbsp; All mothers&#39; case information and records were also carefully reviewed. Only mothers who wanted NVD and had more than 37 weeks gestational age were included in the study. All pregnancies of mothers were Singleton (Inclusion Criteria). On the other hand, no specific disease or anomaly was observed in their pregnancy ultrasounds. Mothers with a history of any specific disease such as diabetes, hypertension, placenta previa, placental abruption, and gestational age outside the range of 37 to 42 weeks were excluded from the study. After selecting the sample population, pregnant mothers were divided into two groups of painless NVD (study group) and routine NVD (control group); this division was according to the request and desire of mothers at the time of delivery<span dir="RTL">.</span><br> Painless NVD was induced by injection of spinal anesthesia. The medicine used for anesthesia was Sufenthalil (a dose of 10 micrograms). Immediately after delivery, the umbilical cord was clamped at 10 and 20 cm intervals, and the umbilical cord was cut between the two clamps, and one cc of umbilical artery blood was transferred into the heparin syringe. The blood sample was then immediately transferred to a laboratory for ABG testing. In addition, data on Apgar scores of the first and fifth minutes of the baby, infant weight, gender of the baby, and age of pregnancy; duration of labor, and the use of oxytocin were recorded and collected. Blood sampling in the labor room and determination of Apgar score in all samples were performed by pediatricians<span dir="RTL">.</span> The collected data were analyzed using SPSS software version 25 (version 25, SPSS Inc., Chicago, IL). Quantitative data was displayed as Mean &plusmn; SD (mean and standard deviation). An independent sample-t-test was used to compare the mean data between the control and study groups. In this study, P-value equal to or less than 0.05 was considered statistically significant.<br> <strong>Results:</strong> The results showed that the mean and standard deviation of birth weight (BW) was 3229.83&nbsp; &plusmn;413.24 (range = 4600-5050) grams, gestational age (GA) was 38.91 &plusmn; 1.06 weeks (Range = 42-37) and neonatal Apgar score was 8.94. &plusmn; 0.28 (range = 7-10). The results showed that the mean gestational age in the painless NVD group was significantly lower than the control group (P = 0.012)<span dir="RTL">.</span> The results showed that there was no statistically significant difference between pH, PCO2, and HCO3 between normal and painless NVD groups, while this difference was significant for Base Excess (BE) (P <0.001)<span dir="RTL">.</span> Considering that in addition to the type of delivery, GA and BW can also affect ABG and Apgar, a linear regression test was used to analyze the data in this section, and the association between type of delivery, GA, and BW with ABG and Apgar was investigated. Based on this test, it was found that there was no association between type of delivery, GA, and BW with PH, PCO2 and HCO3, and Apgar, but there was a significant relationship between the type of delivery and BE (P <0.001).<br> <strong>Conclusion</strong>: According to the results, there was no statistically significant relationship between most of the ABG parameters (except BE) in the two groups of painless normal delivery and normal delivery. It is recommended that additional (more specific) studies with higher sample size and longer duration More be done to further investigate the various forms of this issue. زایمان طبیعی, زایمان بدون درد, آنالیز گاز شریانی, ایران Normal Vaginal Delivery, Painless Delivery, Arterial Gas Analysis Iran 0 0 http://rjms.iums.ac.ir/browse.php?a_code=A-10-5693-1&slc_lang=fa&sid=1 Samaneh Agha Alikhani سمانه آقا علی خانی farahbaksh3@gmail.com 3900319475328460089391 0000000166230907 No Iran University of medical sciences دانشگاه علوم پزشکی ایران Arash Bordbar آرش بردبار bordbari.a@iums.ac.ir 3900319475328460089392 0000000160575444 Yes Iran University of medical sciences دانشگاه علوم پزشکی ایران Mandana Kashaki ماندانا کشاکی @iums.ac.ir 3900319475328460089393 3900319475328460089393 No Iran University of medical sciences دانشگاه علوم پزشکی ایران Amineh Shafeinia امینه شافعی نیا shafeinia.a@iums.ac.ir 3900319475328460089394 0000000182022091 No Iran University of medical sciences دانشگاه علوم پزشکی ایران