The comparison of ultrasound-guided thoracic paravertebral blockade and internal intercostal nerve block for non-intubated video-assisted thoracic surgery

Ultrasound-guided subtransverse interligamentary (STIL) block versus erector spinae plane (ESP) block for postoperative analgesia in patients undergoing modified radical mastectomy (MRM) - A randomised comparative study

Background and Aims

Ultrasound-guided regional anaesthesia has led to the development of various paraspinal block techniques, with the most notable being the erector spinae plane (ESP) block and the subtransverse interligamentary (STIL) block. The objective of this study was to assess and compare the analgesic efficacy of STIL block with ESP block in patients undergoing modified radical mastectomy (MRM) surgery, in terms of postoperative pain scores, 24-h opioid consumption, rescue analgesia requirements and adverse effects.

Methods

One hundred twenty female patients, aged 18-65 years, scheduled to undergo MRM, were randomised to receive either ESP (Group I) or STIL (Group II) blocks with 20 mL of 0.25% levobupivacaine and dexamethasone 4 mg. The primary outcome was pain scores at 12 h. The secondary outcomes were 24-h opioid requirement, total duration of analgesia and number of rescue analgesia doses required. Paired Student's t-test was used to compare normally distributed quantitative data, while Mann-Whitney U test was conducted to analyse non-normally distributed quantitative variables. The Chi-square test was employed to assess the association between categorical variables. A P value of less than 0.05 was considered statistically significant.

Results

The median Numerical Rating Scale (NRS) scores were significantly lower in Group II compared to Group I at 2, 6, 12 h (P < 0.001) and 24 h (P < 0.008). The total opioid requirement (P < 0.0001) and the number of rescue analgesia doses (P < 0.001) were significantly lower in Group II. The duration of analgesia was significantly longer in Group II (P < 0.001). The time taken to perform the procedure was significantly less in Group I (P < 0.001).

Conclusion

The STIL block is associated with a lower NRS score and decreased postoperative opioid consumption compared to the ESP block in patients undergoing MRM.

Advances in the use of non-intubated spontaneous-ventilation video-assisted thoracoscopic surgery

With the advancement of Enhanced Recovery After Surgery (ERAS), minimally invasive thoracoscopic surgery has gained widespread clinical adoption owing to its reduced trauma and faster recovery compared to traditional open chest procedures. Thoracoscopic surgery has evolved from initial three-port and two-port techniques to single-port non-intubated approaches, which preserve spontaneous breathing while minimizing trauma and accelerating recovery. NIVATS represents a groundbreaking advancement in thoracic surgery and anesthesia by innovatively avoiding endotracheal intubation and mechanical ventilation, thereby challenging conventional surgical approaches. This paper reviews the research progress on the anesthesia techniques, indications, and contraindications of Non-Intubated Spontaneous-Ventilation Video-Assisted Thoracoscopic Surgery (NIVATS), discussing its advantages compared to traditional surgical methods, its application in thoracic diseases, as well as the risks and management of NIVATS.

Comparison of analgesic effects of percutaneous and transthoracic intercostal nerve block in video-assisted thoracic surgery: a propensity score-matched study

BACKGROUND

This study aimed to compare the analgesic efficacy of transthoracic intercostal nerve block (TINB) and percutaneous intercostal nerve block (PINB) for video-assisted thoracic surgery (VATS) using a retrospective analysis.

METHODS

A total of 336 patients who underwent VATS between January 2021 and June 2022 were reviewed retrospectively. Of the participants, 194 received TINB and were assigned to the T group, while 142 patients received PINB and were assigned to the P group. Both groups received 25 ml of ropivacaine via TINB or PINB at the end of the surgery. The study measured opioid consumption, pain scores, analgesic satisfaction, and safety. Propensity score matching (PSM) analysis was performed to minimize selection bias due to nonrandom assignment.

RESULTS

After propensity score matching, 86 patients from each group were selected for analysis. The P group had significantly lower cumulative opioid consumption than the T group (p < 0.01). The Visual Analogue Scale (VAS) scores were lower for the P group than the T group at 6 and 12 h post-surgery (p < 0.01); however, there was no significant difference in the scores between the two groups at 3, 24, and 48 h (p > 0.05). The analgesic satisfaction in the P group was higher than in the T group (p < 0.05). The incidence of back pain, nausea or vomiting, pruritus, dizziness, and skin numbness between the two groups was statistically insignificant (p > 0.05).

CONCLUSION

The study suggests that PINB provides superior analgesia for patients undergoing thoracic surgery compared to TINB without any extra adverse effects.

Breast augmentation under local anesthesia with intercostal blocks and light sedation

INTRODUCTION

This study of breast augmentations performed under local anesthesia with intercostal blocks and light sedation describes the outcomes and evaluates benefits and complications.

METHOD

From December 2005 until August 2019, 335 women consecutively underwent bilateral breast augmentation procedures. The anesthetic protocol consisted of an initial intravenous bolus of 1 mg midazolam and 0.25 mg alfentanil preoperatively. In 2017, this was changed to 2-4 mg midazolam intramuscularly, 1 mg midazolam intravenously, and 2.5 µg sufentanil intravenously. Intercostal blocks were injected at the midaxillary line into the intercostal spaces two to seven. The operating field was infiltrated with tumescent local anesthesia. Retrospective data extraction from patients' medical charts was done, registering demographics, dosage of anesthesia, surgical characteristics, complications, and reoperation rates.

RESULTS

Two hundred and eighty-one women underwent primary augmentation and 54 had implant replacement. The most common complications included suboptimal cosmetic results, asymmetry, and healing-related problems. The overall rate of reoperation was 16.1% within an average follow-up period of 2 years, ranging from 0 to 12.5 years. The majority of the reoperations were due to cosmetic reasons. The change in anesthetic regime was associated with a significantly (p < 0.0001) decreased need for supplementary medication with no increased risk of complications.

CONCLUSION

Breast augmentations in local anesthesia with intercostal blocks and light sedation can be performed safely and can serve as an alternative to procedures in general anesthesia.

Assessment of Intercostal Nerve Block Analgesia for Thoracic Surgery: A Systematic Review and Meta-analysis

IMPORTANCE

The use of intercostal nerve block (ICNB) analgesia with local anesthesia is common in thoracic surgery. However, the benefits and safety of ICNB among adult patients undergoing surgery is unknown.

OBJECTIVE

To evaluate the analgesic benefits and safety of ICNB among adults undergoing thoracic surgery.

DATA SOURCES

A systematic search was performed in Ovid MEDLINE, Ovid Embase, Scopus, and the Cochrane Library databases using terms for ICNB and thoracic surgery (including thoracic surgery, thoracoscopy, thoracotomy, nerve block, intercostal nerves). The search and results were not limited by date, with the last search conducted on July 24, 2020.

STUDY SELECTION

Selected studies were experimental or observational and included adult patients undergoing cardiothoracic surgery in which ICNB was administered with local anesthesia via single injection, continuous infusion, or a combination of both techniques in at least 1 group of patients. For comparison with ICNB, studies that examined systemic analgesia and different forms of regional analgesia (such as thoracic epidural analgesia [TEA], paravertebral block [PVB], and other techniques) were included. These criteria were applied independently by 2 authors, and discrepancies were resolved by consensus. A total of 694 records were selected for screening.

DATA EXTRACTION AND SYNTHESIS

This study followed the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) reporting guideline. Data including patient characteristics, type of surgery, intervention analgesia, comparison analgesia, and primary and secondary outcomes were extracted independently by 3 authors. Synthesis was performed using a fixed-effects model.

MAIN OUTCOMES AND MEASURES

The coprimary outcomes were postoperative pain intensity (measured as the worst static or dynamic pain using a validated 10-point scale, with 0 indicating no pain and 10 indicating severe pain) and opioid consumption (measured in morphine milligram equivalents [MMEs]) at prespecified intervals (0-6 hours, 7-24 hours, 25-48 hours, 49-72 hours, and >72 hours). Clinically relevant analgesia was defined as a 1-point or greater difference in pain intensity score at any interval. Secondary outcomes included 30-day postoperative complications and pulmonary function.

RESULTS

Of 694 records screened, 608 were excluded based on prespecified exclusion criteria. The remaining 86 full-text articles were assessed for eligibility, and 20 of those articles were excluded. All of the 66 remaining studies (5184 patients; mean [SD] age, 53.9 [10.2] years; approximately 59% men and 41% women) were included in the qualitative analysis, and 59 studies (3325 patients) that provided data for at least 1 outcome were included in the quantitative meta-analysis. Experimental studies had a high risk of bias in multiple domains, including allocation concealment, blinding of participants and personnel, and blinding of outcome assessors. Marked differences (eg, crossover studies, timing of the intervention [intraoperative vs postoperative], blinding, and type of control group) were observed in the design and implementation of studies. The use of ICNB vs systemic analgesia was associated with lower static pain (0-6 hours after surgery: mean score difference, -1.40 points [95% CI, -1.46 to -1.33 points]; 7-24 hours after surgery: mean score difference, -1.27 points [95% CI, -1.40 to -1.13 points]) and lower dynamic pain (0-6 hours after surgery: mean score difference, -1.66 points [95% CI, -1.90 to -1.41 points]; 7-24 hours after surgery: mean score difference, -1.43 points [95% CI, -1.70 to -1.17 points]). Intercostal nerve block analgesia was noninferior to TEA (mean score difference in worst dynamic panic at 7-24 hours after surgery: 0.79 points; 95% CI, 0.28-1.29 points) and marginally inferior to PVB (mean score difference in worst dynamic pain at 7-24 hours after surgery: 1.29 points; 95% CI, 1.16 to 1.41 points). The largest opioid-sparing effect of ICNB vs systemic analgesia occurred at 48 hours after surgery (mean difference, -10.97 MMEs; 95% CI, -12.92 to -9.02 MMEs). The use of ICNB was associated with higher MME values compared with TEA (eg, 48 hours after surgery: mean difference, 48.31 MMEs; 95% CI, 36.11-60.52 MMEs) and PVB (eg, 48 hours after surgery: mean difference, 3.87 MMEs; 95% CI, 2.59-5.15 MMEs).

CONCLUSIONS AND RELEVANCE

In this study, single-injection ICNB was associated with a reduction in pain during the first 24 hours after thoracic surgery and was clinically noninferior to TEA or PVB. Intercostal nerve block analgesia had opioid-sparing effects; however, TEA and PVB were associated with larger decreases in postoperative MMEs, suggesting that ICNB may be most beneficial for cases in which TEA and PVB are not indicated.

Comparison of analgesic effects and postoperative cognitive function following total knee arthroplasty: continuous intravenous infusion of fentanyl vs. ultrasound-guided continuous femoral nerve block with ropivacaine

OBJECTIVE

The purpose of this study was to compare the effects of continuous intravenous infusions (CII) of fentanyl by pumping and ultrasound-guided continuous femoral nerve block (CFNB) with ropivacaine in terms of analgesic effects and postoperative cognitive function following total knee arthroplasty.

METHODS

The clinical data of 103 patients who underwent total knee arthroplasty were collected retrospectively and divided into group A (n = 51) receiving CII of fentanyl by pumping and group B (n = 52) receiving CFNB with ropivacaine. Mini-Mental State Examination (MMSE) scores, Visual analog scale (VAS) scores, knee joint flexion angle (KJFA), muscle strength, postoperative cognitive dysfunction (POCD), patient satisfaction, and adverse reactions of the two groups were compared.

RESULTS

The muscle strength scores in group B gradually improved at 6-48 h as compared with at 4 hours after operation (P < 0.05). Compared with group A, patients in group B had greater active motion of KJFA at 4, 6, and 12 h after operation (P < 0.05). In contrast to group A, patients in group B had lower VAS scores at rest or active and passive motion at 4-48 h after operation (P < 0.05). The MMSE scores of group B were higher than those of group A at 1, 4, and 7 d after operation (P < 0.05). The incidence of POCD at 4 d after operation was 1.92% in group B, lower than that of 15.69% in group A (P < 0.05). The incidence of adverse reactions was 5.77% in group B, lower than that of 29.41% in group A (P < 0.05). The satisfaction scores of group B were higher than those of group A (P < 0.05).

CONCLUSION

Compared with CII of fentanyl by pumping, ultrasound-guided CFNB showed superior analgesic effects following total knee arthroplasty, which should reduce the incidence of POCD and adverse reactions.

Effect of Single-Injection Thoracic Paravertebral Block via the Intrathoracic Approach for Analgesia After Single-Port Video-Assisted Thoracoscopic Lung Wedge Resection: A Randomized Controlled Trial

Introduction

Pain is still severe after single-port video-assisted thoracoscopic (SPVAT) lung wedge resection. We observed the effect of single-injection thoracic paravertebral block (TPB) via the intrathoracic approach for analgesia after SPVAT lung wedge resection.

Methods

Sixty patients undergoing SPVAT lung wedge resection were randomly divided into a control group and an observation group. All patients underwent TPB via the intrathoracic approach at the T4 level with a scalp needle before closing the chest. The patients in the observation group received 20 ml 0.375% ropivacaine at the T4 level, and the patients in the control group received 20 ml of 0.9% saline. A patient-controlled intravenous analgesic (PCIA) pump with sufentanil was attached to all patients after surgery. The sufentanil consumption and number of PCIA presses in the first 24 h after surgery were recorded. The visual analogue scale (VAS) scores (during rest and coughing) were recorded at 6 h, 12 h, 24 h, and 36 h after surgery. The incidence of adverse reactions after surgery were recorded.

Results

The sufentanil consumption in the observation group was significantly lower than that in the control group (34.2 ± 1.9 µg vs. 52.3 ± 2.3 µg; P < 0.001). The VAS score at 6, 12, and 24 h after surgery, the incidence of adverse reactions after surgery in the observation group were significantly lower than those in the control group (all P < 0.05). The number of PCIA presses in the observation group was significantly lower than that in the control group [0 (0–0) times vs. 3 (2–4) times, P < 0.001].

Conclusions

Single-injection TPB via the intrathoracic approach under thoracoscopic direct vision is easy to perform and can effectively alleviate postoperative pain after SPVAT lung wedge resection, with fewer adverse reactions.

Trial Registration

ChiCTR2000034726.

Supplementary Information

The online version contains supplementary material available at 10.1007/s40122-020-00231-y.

To tube or not to tube: a skeptic's guide to nonintubated thoracic surgery

PURPOSE OF REVIEW

The aim of this review is to provide an overview of the rationale and evidence for nonintubated thoracic surgery and guide clinicians, considering the implementation of nonintubated thoracic surgery, to find an anesthetic approach suitable for their department.

RECENT FINDINGS

Based on physiologic considerations alone, nonintubated thoracic surgery would be expected to be an advantageous concept in thoracic anesthesia, especially in patients at high risk for pulmonary complications. Currently existing evidence, however, does not support these claims. Although the feasibility and safety have been repeatedly demonstrated, high-quality evidence showing a significant benefit regarding clinically relevant patient-centered outcomes is not available.Anesthetic approaches to nonintubated thoracic surgery differ significantly; however, they usually concentrate on six main aspects: maintenance of airway patency, respiratory support, analgesia, patient comfort, cough suppression, and conversion techniques. Given the lack of high-quality studies comparing different techniques, evidence-based guidance of clinical decision-making is currently not possible. Until further evidence is available, anesthetic management will depend mostly on local availability and expertise.

SUMMARY

In select patients and with experienced teams, nonintubated thoracic surgery can be a suitable alternative to intubated thoracic surgery. Until more evidence is available, however, a general change in anesthetic management in thoracic surgery is not justified.

[Videoassisted Thoracoscopy with Preserved Spontaneous Breathing - an Anaesthesiological Perspective]

INTRODUCTION

Video-assisted thoracoscopic procedures with preserved spontaneous breathing (NI-VATS = conscious video-assisted thoracic surgery) have enjoyed a revival in recent years. However, there have been few reports on proper patient selection, as well as surgical or anaesthesiologic management for these procedures in Germany. Therefore, we present our experience with NI-VATS procedures in the form of a case study and discuss the results with a current survey and the current literature.

METHOD

Retrospective evaluation of all NI-VATS procedures at our local institution.

RESULTS

From June 2018 to January 2020 n = 17 (9 male and 8 female) patients underwent NI-VATS at our institution. Median age of patients was 68 [61 - 79] years. Fourteen patients suffered from progressive cancer as the underlying disease, leading to thoracic surgery. All patients had a number of comorbidities and were classified according to the ASA categories III (n = 9) or IV (n = 8). Surgical procedures were of short duration (in median 18 [15 - 27] min) and included 82% pleural procedures (pleurectomy, decortication or insertion of pleural drainage). All patients tolerated the surgical procedures under local anaesthesia and conscious sedation very well. Eleven patients could therefore be transferred to the normal ward after surgery, while the remaining patients underwent prolonged and intensified postoperative monitoring. Five of the 17 patients died within the hospital, in median 8 [3.0 - 33.5] days after surgery, in context of the underlying disease. None of the deaths could be associated with the surgical procedures.

DISCUSSION

In a well selected patient cohort and with our local experience, NI-VATS is a safe and practicable alternative to standard thoracotomy in general anaesthesia and one-lung ventilation. In our local institution, multimorbid patients with interventions of short duration and reasonable extent underwent successful NI-VATS and emerged as good candidates for this procedure. Careful patient selection and knowledge of the procedure and its side effects present important milestones for successful NI-VATS.