The effect of nephrostomy tract infiltration of ketamine on postoperative pain and peak expiratory flow rate in patients undergoing tubeless percutaneous nephrolithotomy: a prospective randomized clinical trial

The safety and efficacy of ultrasound-guided erector spinae plane block in postoperative analgesic of PCNL: A systematic review and meta-analysis

BACKGROUND

The patients received percutaneous nephrolithotomy (PCNL) with severe postoperative pain and discomfort. The erector spinae plane block (ESPB), as a new anesthesia method of plane block, has a positive effect on postoperative analgesia. But evidence of ESPB in PCNL is still lacking. The objective of this study was to systematically analyze the postoperative analgesic effect of ESPB in patients receiving PCNL.

METHODS

The literature searching was conducted in PubMed, EMBASE, Cochrane Library and Clinical Trial Database (clinicaltrials.gov). Two independent researchers screened the included studies and extracted data. Meta-analysis was conducted by using the random-effect model with 95% confidence intervals. Chi-squared test with a significance level of 0.1 was utilized to evaluate the heterogeneity of included studies. The subgroup analysis and meta-regression analysis were conducted in studies with high heterogeneity. The publication bias was assessed based on whether there were discrepancies between prospective trial registration and reported protocols.

RESULTS

There were 8 studies involving 456 patients assessing the efficacy of ESPB in reducing postoperative pain score of PCNL compared with no block or other blocks, such as subcutaneous infiltration, general anesthesia or TPVB intrathecal morphine. ESPB was a significantly effective and safe anesthesia method, which not only improved postoperative pain response (MD -1.76; 95% CI -2.57 to -0.94; I 2 = 85%; p<0.01), but also reduced analgesic consumption (MD -16.92; 95% CI -26.25 to -7.59; I 2 = 92.2%; p<0.01) and prolonged the time of first request for postoperative analgesia (MD 93.27; 95% CI 35.79 to 150.75; I 2 = 85.3%; p = 0.001) in patients receiving PCNL without significant postoperative complications (MD 0.80; 95% CI 0.31 to 2.03; I 2 = 0%; p = 0.404).

CONCLUSIONS

Compared with no block or other blocks, the ESPB was a safe and effective anesthesia for patients receiving PCNL.

Should the Erector Spinae Plane Block Be Applied in the Pain Management of Percutaneous Nephrolithotomy?

Introduction

This prospective, randomized controlled study aimed to investigate the efficacy and respiratory effects of postoperative pain management with an erector spinae plane block in patients undergoing percutaneous nephrolithotomy.

Methods

Sixty American Society of Anesthesiologists (ASA) I-II patients aged 18-65 years, scheduled to undergo percutaneous nephrolithotomy, were randomized either to the erector spinae plane block (ESPB) or control group. Fifteen mL 0.5% bupivacaine at the T11 level was administered preoperatively using the in-plane technique in the ESPB group. In both groups, 1 gr of intravenous paracetamol was administered intraoperatively. Postoperative pain and agitation were evaluated using the visual analog scale (VAS), dynamic VAS at zero, six, and 24 hours, and the Riker sedation-agitation scale at the 0th hour after surgery. Peak expiratory flow rate (PEFR) and oxygen saturation (SpO₂) were measured in preoperative examination and at the 0th, 6th, and 24th hours postoperatively. The time and number of the analgesic requirement, mobilization, and discharge time were also recorded.

Results

A significantly lower VAS and dynamic VAS were observed at the 0th, 6th, and 24th hours in the ESPB group (p<0.05 for each timepoint). The postoperative/preoperative PEFR ratio was lower and there were more agitated patients in the control group (p<0.05).

Conclusion

An erector spinae plane block may have additional clinical advantages while providing effective analgesia in patients who underwent percutaneous nephrolithotomy compared to intravenous analgesia.

The impact of post PCNL tube type on blood loss and postoperative pain

Objective:

To evaluate the impact of nephrostomy tube type on postoperative pain and blood loss following percutaneous nephrolithotomy (PCNL).

Methods:

This is a prospective non-randomized study performed at Aga Khan University Hospital from July 2017 to June 2018. In this study we prospectively studied adult patients (16 to 65 years) who underwent unilateral PCNL. Patients who had nephrostomy with balloon (12Fr Foley’s catheter) were compared with patients who had nephrostomy without balloon (12Fr Nelaton™ catheter). STONE Nephrolithometry score was used to assess the stone complexity. Mean pain score at six and 24 hours and mean hemoglobin drop at 24 hours was compared between two groups using independent sample t-test, p-value of <0.05 was considered significant.

Results:

Over one year, 198 PCNL were performed out of which 119 were included for analysis. Sixty-six had nephrostomy tube with balloon and 53 had nephrostomy tube without balloon. Mean STONE score (9.66±1.4 vs. 9.64±1.24) and operative time (72.84±28.34 vs. 86.05±32.1 minutes) was comparable. Mean postoperative pain score at 6 hours and 24 hours postoperative was significantly lower in balloon group as compared to without balloon group. Mean Hemoglobin drop was similar in both groups (p=0.60).

Conclusion:

The use of nephrostomy tube with balloon after PCNL as this is associated with less pain and comparable hemoglobin drop as compare to nephrostomy tube without balloon.

Kidney stones and the opioid epidemic: recent developments and review of the literature

PURPOSE OF REVIEW

A public health emergency has been declared in response to rising opioid addiction and opioid-related deaths in the United States. As kidney stones have been identified as an important source of initial and repeated opioid exposures, this review seeks to describe the scope of the problem and report relevant alternatives to opioid analgesia for stones.

RECENT FINDINGS

Recent literature summarizing the extent of opioid use among those with stones is reviewed. A number of opioid-minimizing strategies and analgesic regimens have been proposed and studied. A review of these modifications and alternatives is provided.

SUMMARY

Both symptomatic renal colic and surgical interventions to address stones may prompt need for analgesia. Reducing prescribed opioids reduces both patient use and risk of diversion. Modifications in surgical technique, administration of local anesthetics, and use of systemic nonopioid analgesics have all been successfully employed.

The analgesic efficacy of paravertebral block for percutaneous nephrolithotomy: A meta-analysis of randomized controlled studies

INTRODUCTION

The analgesic efficacy of paravertebral block for percutaneous nephrolithotomy remains controversial. We conduct a systematic review and meta-analysis to explore the analgesic efficacy of paravertebral block for patients with percutaneous nephrolithotomy.

METHODS

We have searched PubMed, EMbase, Web of science, EBSCO, and Cochrane library databases, and randomized controlled trials (RCTs) assessing analgesic efficacy of paravertebral block for percutaneous nephrolithotomy are included in this meta-analysis.

RESULTS

Five RCTs are included in the meta-analysis. Overall, compared with control group after percutaneous nephrolithotomy, paravertebral block is associated with the decrease in analgesic consumption (standard mean difference (Std. MD) = -1.55; 95% confidence interval (CI) = -2.18 to -0.92; P < .00001) and additional analgesics (risk ratio (RR) = 0.17; 95% CI = 0.07 to 0.44; P = .0003), prolonged time to first analgesic requirement (Std. MD = 1.51; 95% CI = 0.26 to 2.76; P = .02). There is no statistical difference of adverse events including nausea or vomiting (RR = 0.51; 95% CI = 0.11 to 2.35; P = .38), or itching (RR = 0.69; 95% CI = 0.26 to 1.81; P = .45) between 2 groups.

CONCLUSIONS

Paravertebral block is effective for pain control after percutaneous nephrolithotomy.