Reducing pain of first trimester abortion under local anaesthesia

Prescription opioid fills following surgical abortion

OBJECTIVE

To characterize opioid fills after surgical abortion among US commercially-insured women.

STUDY DESIGN

We identified women aged 15-50 years with an outpatient claim for dilation and curettage or evacuation surgical abortion (D&C/D&E) in IBM MarketScan 2015-2018 and excluded patients with > 1 opioid fill in the prior 90 days, evidence of opioid dependence or abuse in the prior 180 days (baseline), miscarriage in 7 days prior, or mifepristone use in 3 to 7 days prior. We describe the frequency of an oral opioid fill within 7 days after abortion, refill within 42 days of initial fill, and chronic use (≥ 6 fills) in 1 year after abortion. We used multivariable logistic regression to evaluate predictors of opioid fill including patient and procedure characteristics.

RESULTS

Among 28,252 patients who underwent induced surgical abortion, 2,340 (8.3%) filled an opioid prescription within 7 days. The strongest predictors of opioid fill were non-Northeast region, use of moderate sedation for the procedure, and baseline depression. Among 2,250 patients with an initial fill and sufficient follow-up, 10.0% had a refill within 42 days of initial fill. Among 15,353 patients with sufficient follow-up, patients with an opioid fill after abortion had a higher percentage of subsequent chronic use than those without (2.1% and 0.4%, respectively).

CONCLUSION

The frequency of an opioid fill after surgical abortion among commercially-insured women was notable given it is not recommended for post-procedural analgesia. Opioid prescribing contrary to recommendations may be associated with subsequent chronic use or abuse.

IMPLICATIONS STATEMENT

Despite public health efforts to decrease opioid prescribing, these findings suggest opioid prescribing after surgical abortion as a potential source of overprescribing among commercially insured patients in the United States. As surgical abortion is a minimally-invasive procedure, prescribing opioids for use in this setting may contribute to chronic use.

Analgesia/pain management in first trimester surgical abortion

Management of pain during abortion is a critical aspect of patient care. Although it is not always possible to offer a range of pain control options in every setting, individualizing pain medications as much as possible for patients' preferences is likely to improve satisfaction with the abortion experience. Evidence suggests that higher volume (at least 200 mg lidocaine) and deeper injections are beneficial for cervical block. Adding intravenous sedation with a moderate dose of fentanyl and midazolam reduces the pain scores. Oral benzodiazepines may improve satisfaction and anxiety. Deep sedation and general anesthesia are important options for women with significant medical conditions or complicated procedures.

Comparison of lidocaine 1% and normal saline in paracervical anesthesia for decreasing of pain in curettage

The objective of this study was to compare the efficiency oflidocaine with that of plain saline for paracervical pain relief during fractional curettage. The double-blind randomized clinical trial was performed on 150 patients presenting from 2004 to 2005 for curettage. The patients were assigned randomly in two groups to receive lidocaine 1% or normal saline. Number of patients at each group was 75 women. The pain intensity was assessed in four stages: (1) after speculum insertion, (2) during cervical dilatation, (3) during curettage and (4) 30 min after curettage completion. The pain intensity was graded as 0 to 100 according to the Likert Scale. The Mean +/- SD of pain intensity after speculum insertion, during dilatation, during curettage and 30 min after curettage in lidocaine group were 11.33 +/- 9.70, 24.93 +/- 15.36, 37.00 +/- 17.35, 6.47 +/- 6.42 and in normal saline group were 11.73 +/- 9.81, 28.20 +/- 13.19, 49.47 +/- 21.55 and 7.33 +/- 6.22, respectively. There was no significant difference between pain intensity after speculum insertion, during dilatation and during 30 min after curettage but there was a significant difference in pain intensity during curettage between lidocaine 1% group and normal saline group (p < 0.05). Normal saline is as effective as lidocaine 1% in low pain in curettage (distention of nerve capsule) but when increase pain in curettage (third time point), lidocaine 1% is more effective than normal saline. Nerve capsule distention is not the only factor for pain control in paracervical block and analgesic agent is still an important factor.

A double-blind, randomized controlled trial on the use of a 50:50 mixture of nitrous oxide/oxygen in pain relief during suction evacuation for the first trimester pregnancy termination

BACKGROUND

This prospective study assessed the role of a 50:50 mixture of nitrous oxide (N2O) and oxygen for pain relief during the termination of first trimester pregnancies by suction evacuation under conscious sedation.

METHODS

Ninety women undergoing suction evacuation up to 12 weeks of gestation were randomized by a computer-generated randomization list and allocated using sealed envelopes to receive the N2O/O2 mixture or air during the operation. Pain scores during and after suction evacuation, post-operative side effects and satisfaction level were compared.

RESULTS

No statistically significant differences in pain scores, post-operative side effects and satisfaction levels were found between the two groups.

CONCLUSION

N2O/O2 did not reduce the pain level during suction evacuation for the first trimester pregnancy termination under conscious sedation.

Comparison of oral and vaginal misoprostol for cervical ripening before manual vacuum aspiration of first trimester pregnancy under local anesthesia: a randomized placebo-controlled study

The objective of this prospective randomized placebo-controlled study was to determine the effectiveness of 400 mug oral and 400 mug vaginal misoprostol administration for cervical priming 3 h prior to manual vacuum aspiration (MVA) under local anesthesia for voluntary termination of pregnancy before 10 weeks of gestation in comparison with placebo oral or placebo vaginal administration (n=40 in each group). Postmedication cervical dilatation was similar in the oral (mean, 6.6+/-1.5) and vaginal (mean, 7.2+/-0.8) misoprostol groups but significantly higher compared with the oral (mean, 3.4+/-0.2) and vaginal (mean, 3.6+/-1.9) placebo groups. Duration of the procedure was also significantly shorter in the misoprostol groups in comparison with their placebo counterparts. Preoperative bleeding and side effects were more common in the misoprostol groups, but none required medical intervention. Intraoperative bleeding was less in the vaginal misoprostol group compared with the placebo groups. There was no significant difference in terms of visual analogue scores during the procedure, patient satisfaction, days of postoperative bleeding and rate of postoperative complications among the groups. Cervical priming with misoprostol administered orally or vaginally 3 h before MVA for termination of pregnancy under local anesthesia facilitates the procedure by decreasing the need for cervical dilatation and by shortening its duration without improving patients' pain perception and satisfaction mainly due to side effects.

Paracervical block in incomplete abortion using manual vacuum aspiration: randomized clinical trial

OBJECTIVE

To estimate the effectiveness of paracervical block in controlling pain among women treated with manual vacuum aspiration for an incomplete abortion

METHODS

A randomized clinical trial was conducted at Nuestra Señora de Altagracia, a maternal and perinatal referral hospital in the Dominican Republic. The sample size was based on a clinical difference of 1.5 points in the level of pain measured with the visual analog scale using 90% power and a sampling error of 0.04. Women who were at 12 weeks of gestation or less with an incomplete abortion were eligible to participate. They were randomly assigned to receive either the standard treatment of care (manual vacuum aspiration for uterine evacuation with psychological support but no paracervical block) or manual vacuum aspiration treatment with psychological support and paracervical block using 1.0% lidocaine. Patients with active infections, severe illnesses, psychiatric disorders, or allergies to lidocaine were excluded. Intraoperative pain as reported by the women and as documented by an external observer was measured.

RESULTS

Although the paracervical block technique used showed a slight reduction in severe pain, there were no clinically or statistically significant differences in intraoperative pain between the 2 groups (relative risk 0.73; 95% confidence interval 0.43, 1.23) with 50% of all patients registering 7 or higher score on a visual analog pain scale of 0-10. However, statistically significant differences were found in each group when comparing the level of preoperative and intraoperative pain described by the patient (P <.001). The manual vacuum aspiration technique and the paracervical block were not accompanied by complications.

CONCLUSION

The paracervical block technique used in this study along with psychological support was comparable with pain control using psychological support alone; neither pain management regimen provided sufficient pain control. It is recommended that randomized comparative studies be designed to determine the effectiveness of other paracervical block techniques and the efficacy of the use of analgesics in patients suffering from incomplete abortion treated with manual vacuum aspiration.

Women's preferences for general or local anesthesia for pain during first trimester surgical abortion in India

Women in India are rarely given a choice about their pain management methods for first trimester abortions. To investigate women's preferences and perceptions of pain, we allowed 100 women in Mumbai to choose between local and general anesthesia (60% selected general, while 40% elected local anesthesia). Using visual analog scales ranging from 1 to 7, women characterized their pain several times during their abortion visits. Local anesthesia clients reported more pain during (2.3 local vs. 1.0 general) and immediately after (1.9 vs. 1.0) the procedure. By three hours post-procedure, none of the women in either group reported any pain. General anesthesia clients reported that having no pain (95%) or anxiety (38%) were the best features, while local anesthesia clients liked being ambulatory (26%), avoiding side effects (26%), and feeling awake (21%). Though women in both groups were satisfied, local anesthesia clients were more likely to recommend it to friends (95% vs. 85%). Given these advantages, our study suggests that some women willingly accept additional pain incurred by exchanging local for general anesthesia.

Paracervical block and elective abortion: the effect on pain of waiting between injection and procedure

OBJECTIVE

Our purpose was to assess the effect on pain and patient satisfaction of waiting between paracervical block and dilation during first-trimester abortions.

STUDY DESIGN

One hundred ninety-nine women seeking pregnancy termination were randomly assigned to a no-wait group (group 1) and a 3- to 5-minute wait between injection and dilation group (group 2). Subjects rated their pain on a visual analog scale at four times: prior to procedure, with dilation, with aspiration, and 30 to 45 minutes after procedure.

RESULTS

No significant differences were observed in pain or satisfaction ratings reported by group 1 (n = 93) and group 2 (n = 101). A significant decrease in pain with dilation (1.21 cm decrease, P =.009) and aspiration (1.15 cm decrease, P =.0015) was observed among patients who received fentanyl.

CONCLUSION

Delay between paracervical injection and dilation during first-trimester abortion does not have an impact on patient pain or satisfaction. Fentanyl decreased pain scores by 20% to 25% during the procedure.

Comparison of pain and time of procedures with two first-trimester abortion techniques performed by residents and faculty

OBJECTIVES

We compared pain perception and procedure time in abortions performed by residents and faculty using a manual vacuum aspirator and electric vacuum curettage devices.

STUDY DESIGN

We conducted a randomized trial of 114 women undergoing first-trimester abortions. Patients assessed the level of pain with visual analog scales.

RESULTS

The mean procedure times were 5.7 and 6.9 minutes, respectively, with electric vacuum curettage and manual vacuum aspirator. Faculty took less time than residents to perform both procedures. Patients reported a higher pain level with cervical dilatation before resident electric vacuum curettage procedures. Patients undergoing electric vacuum curettage thought that the procedure noise increased their pain.

CONCLUSIONS

First-trimester abortion procedures can be performed more quickly by experienced surgeons. The procedure time for the manual vacuum aspirator is greater than that for the electric vacuum curettage. Patient pain perception with aspiration by these two techniques is not different. The level of pain after aspiration did not vary significantly in patients who had abortions performed by residents or faculty.