{"title":"Ultrasound-guided serratus posterior superior muscle block for myofascial pain syndrome in the cervicoscapular region: a report of three cases.","authors":"Atsushi Sawada, Michiaki Yamakage","doi":"10.1186/s40981-025-00807-7","DOIUrl":"10.1186/s40981-025-00807-7","url":null,"abstract":"<p><strong>Background: </strong>These case reports focus on successful pain management with ultrasound-guided serratus posterior superior muscle (SPSM) block using 30 mL of 0.25% ropivacaine or physiological saline in three myofascial pain syndrome (MPS) patients presented with cervicoscapular pain.</p><p><strong>Case presentation: </strong>The SPSM block was administered to three ambulatory patients (cases #1, #2, and #3) who presented with cervicoscapular pain. The SPSM block with 30 mL of 0.25% ropivacaine drastically decreased an NRS score and provided 2-3 weeks of pain relief in cases #1 and #2. On the contrary, the SPSM block with 30 mL of physiological saline also mildly decreased an NRS score and provided 3 weeks of pain relief in cases #1 and #3.</p><p><strong>Conclusions: </strong>The SPSM block using 30 mL of 0.25% ropivacaine or physiological saline successfully decreased the NRS scores in three MPS patients. These findings suggest that the SPSM block may serve as a useful therapeutic option in MPS patients presenting with cervicoscapular pain.</p>","PeriodicalId":14635,"journal":{"name":"JA Clinical Reports","volume":"11 1","pages":"42"},"PeriodicalIF":1.0,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144730978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Left circumflex artery occlusion during aortic valvuloplasty in a young patient with bicuspid aortic valve: a case report.","authors":"Yutaro Otsuka, Tsunehisa Tsubokawa","doi":"10.1186/s40981-025-00806-8","DOIUrl":"10.1186/s40981-025-00806-8","url":null,"abstract":"<p><strong>Background: </strong>Aortic valvuloplasty serves as a valve-preserving alternative to aortic valve replacement and offers advantages in younger patients. However, intraoperative complications associated with this technique have rarely been reported.</p><p><strong>Case presentation: </strong>A 15-year-old male with severe aortic regurgitation due to a congenital bicuspid aortic valve underwent aortic valvuloplasty. During separation from cardiopulmonary bypass, ST-segment elevation was noted on electrocardiography, and transesophageal echocardiography (TEE) revealed regional wall motion abnormalities. Color Doppler imaging revealed absent flow in the left circumflex artery (LCx). The anesthesiology team promptly alerted the surgeons, and LCx occlusion due to suture annuloplasty was suspected. Removal of the implicated suture restored flow and stabilized hemodynamics.</p><p><strong>Conclusions: </strong>Systematic intraoperative assessment and documentation of coronary flow via TEE are instrumental in diagnosing coronary artery occlusion. Moreover, mutual trust and clear, timely communication between anesthesiologists and surgeons are essential to maintaining surgical safety.</p>","PeriodicalId":14635,"journal":{"name":"JA Clinical Reports","volume":"11 1","pages":"41"},"PeriodicalIF":1.0,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12290129/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144698567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effectiveness of a preoperative explanatory video system on patient acceptance and anesthesiologists' workload: a questionnaire survey.","authors":"Kohei Akemoto, Kotoe Kamata, Yu Kaiho, Eiko Onishi, Shizuha Yabuki, Takuya Shiga, Masanori Yamauchi","doi":"10.1186/s40981-025-00805-9","DOIUrl":"10.1186/s40981-025-00805-9","url":null,"abstract":"<p><strong>Background: </strong>High-quality preoperative patient education is crucial for enhancing comprehension and reducing anxiety. However, anesthesiologists often face time constraints that limit the depth of preoperative consultations. To address this challenge, we implemented a tablet-based preanesthetic explanatory video preview system, allowing patients to view tailored video clips prior to their consultation. This study aimed to evaluate the system's impact on patient acceptance and the workload of anesthesiologists.</p><p><strong>Methods: </strong>A questionnaire-based survey was conducted at our outpatient clinic between October 27 and November 20, 2023. A total of 121 patients and 20 anesthesiologists participated. Patients completed a three-point scale questionnaire assessing the video's clarity, relevance, and overall satisfaction. Anesthesiologists provided feedback on the efficiency of consultations and workload.</p><p><strong>Results: </strong>Ninety-five percent of patients found the video \"easy to understand,\" and 96% expressed overall satisfaction. Thirteen out of 14 anesthesiologists reported that the video improved patient understanding and reduced consultation time, with an average time savings of 3.9 ± 3.2 min per patient. None reported an increase in workload.</p><p><strong>Conclusions: </strong>The preanesthetic video preview system improved patient comprehension and satisfaction while enhancing consultation efficiency. Standardizing preoperative education through video may optimize clinical workflow and reduce the burden on anesthesiologists. Further research is warranted to assess its applicability across diverse patient populations and surgical settings.</p>","PeriodicalId":14635,"journal":{"name":"JA Clinical Reports","volume":"11 1","pages":"40"},"PeriodicalIF":1.0,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12290128/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144698566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A patient with myasthenia gravis showing lower sensitivity to rocuronium and earlier recovery of train-of-four responses on electromyography compared to acceleromyography: a case report.","authors":"Yoshiko Murakami, Masafumi Fujimoto, Naoyuki Hirata","doi":"10.1186/s40981-025-00803-x","DOIUrl":"10.1186/s40981-025-00803-x","url":null,"abstract":"<p><strong>Background: </strong>Although newly developed electromyographic devices have been introduced in anesthetic practice, reports on their use in patients with myasthenia gravis (MG) are lacking. We describe electromyographic monitoring combined with acceleromyography in a myasthenic patient.</p><p><strong>Case presentation: </strong>A 55-year-old female underwent robot-assisted thoracoscopic thymothymectomy due to MG associated with thymoma. At general anesthesia induction, 0.13 mg/kg of rocuronium completely suppressed the acceleromyographic train-of-four (TOF) response, enabling tracheal intubation. However, the electromyographic TOF count remained at 4. Intraoperatively, rocuronium was administered whenever the acceleromyographic TOF count reached 1, which was consistently delayed compared to the electromyographic TOF count of 1. After surgery, sugammadex 2 mg/kg was administered following confirmation of a TOF count of 2 on both monitors, which enabled successful extubation in the operating room.</p><p><strong>Conclusions: </strong>This case suggests that combining electromyography with acceleromyography might be more beneficial than electromyography or acceleromyography alone in myasthenic patients, until further evidence is available.</p>","PeriodicalId":14635,"journal":{"name":"JA Clinical Reports","volume":"11 1","pages":"39"},"PeriodicalIF":0.8,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12234426/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144583881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Progressive coronary stenosis detected by intraoperative TEE after acute type-A aortic dissection repair: a case report.","authors":"Asuka Komatsu, Hiroki Tateiwa, Kazumasa Orihashi, Takashi Kawano","doi":"10.1186/s40981-025-00802-y","DOIUrl":"10.1186/s40981-025-00802-y","url":null,"abstract":"<p><strong>Background: </strong>Acute type-A aortic dissection is a life-threatening condition requiring urgent intervention. Among its complications, coronary malperfusion is particularly fatal. Although rare, coronary artery stenosis after surgical repair is critical yet underrecognized.</p><p><strong>Case presentation: </strong>A 77-year-old man underwent emergency aortic arch replacement for acute type-A aortic dissection. Intraoperative transesophageal echocardiography (TEE) initially showed no coronary involvement. However, ST-segment elevation and new hypokinesia appeared post-repair. TEE identified progressive left main coronary artery stenosis. Coronary angiography confirmed severe stenosis, leading to urgent coronary artery bypass grafting. The patient recovered well and was discharged on postoperative day 33.</p><p><strong>Conclusions: </strong>This case highlights the importance of intraoperative TEE for early detection of coronary complications following acute type-A aortic dissection repair. Dissection can progress even after aortic replacement surgery and requires vigilance. Careful monitoring and prompt intervention are crucial to optimize the outcome of these rare but life-threatening events.</p>","PeriodicalId":14635,"journal":{"name":"JA Clinical Reports","volume":"11 1","pages":"38"},"PeriodicalIF":0.8,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12214222/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144540238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Anaphylaxis due to midazolam administered before induction of general anesthesia: a case report.","authors":"Ryosuke Funabiki, Tatsuo Horiuchi, Toshie Shiraishi, Masaki Orihara, Kazuhiro Nagumo, Shigeru Saito","doi":"10.1186/s40981-025-00800-0","DOIUrl":"10.1186/s40981-025-00800-0","url":null,"abstract":"<p><strong>Background: </strong>Anaphylaxis is an immediate allergic reaction. However, in some cases, there is a delay between the administration of the causative agent and the onset of anaphylaxis.</p><p><strong>Case presentation: </strong>A 41-year-old woman was scheduled for laparoscopic myomectomy under general anesthesia combined with epidural anesthesia. Midazolam was administered, and an epidural catheter was inserted. Seven minutes after the induction of general anesthesia (17 min after midazolam administration), the patient developed tachycardia, hypotension, and redness of the face and trunk. Her hemodynamic status improved after administration of phenylephrine and elevation of both legs, and the surgery was completed. Increased blood histamine and tryptase levels were observed 30 min after the onset of hemodynamic signs. Based on the above, anaphylaxis was diagnosed. Skin tests later showed that midazolam was the causative agent.</p><p><strong>Conclusions: </strong>A case of perioperative anaphylaxis caused by midazolam, which was used before the induction of general anesthesia, was described.</p>","PeriodicalId":14635,"journal":{"name":"JA Clinical Reports","volume":"11 1","pages":"37"},"PeriodicalIF":0.8,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12179032/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144325729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ultrasound-guided lateral pterygoid muscle injection for inferior alveolar nerve block in sagittal split ramus osteotomy: a three-case series.","authors":"Keisuke Nakazawa, Ryota Tsukui, Yoshio Ohyama, Yoshinori Inaba, Junko Tamari, Takahiro Suzuki","doi":"10.1186/s40981-025-00799-4","DOIUrl":"10.1186/s40981-025-00799-4","url":null,"abstract":"<p><strong>Background: </strong>Sagittal split ramus osteotomy is often associated with significant postoperative pain. Intraoral inferior alveolar nerve blocks have variable success rates and higher risks of vascular complications, while ultrasound-guided approaches to the pterygomandibular space require precise needle placement in a narrow anatomical space. We present a novel perioperative application of ultrasound-guided lateral pterygoid muscle injection for regional anesthesia.</p><p><strong>Case presentations: </strong>Three female patients underwent bilateral sagittal split ramus osteotomy under general anesthesia. After anesthesia induction, ultrasound-guided lateral pterygoid muscle injections were performed using 10 mL of 0.25% levobupivacaine. All patients demonstrated excellent postoperative pain control (numerical rating scale score ≤ 2) with minimal analgesic requirements and no complications.</p><p><strong>Conclusion: </strong>This novel lateral pterygoid muscle injection technique for perioperative analgesia demonstrates promising clinical efficacy through a simplified ultrasound-guided approach, providing effective opioid-free postoperative pain management for sagittal split ramus osteotomy.</p>","PeriodicalId":14635,"journal":{"name":"JA Clinical Reports","volume":"11 1","pages":"36"},"PeriodicalIF":0.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12170484/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144302095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Relationship between the updated oxygen reserve index and arterial partial pressure of oxygen: a prospective observational study.","authors":"Hidemi Ishido, Keisuke Yoshida, Tsuyoshi Isosu, Shinju Obara, Satoki Inoue","doi":"10.1186/s40981-025-00796-7","DOIUrl":"10.1186/s40981-025-00796-7","url":null,"abstract":"<p><strong>Introduction: </strong>The oxygen reserve index (ORi™), a non-invasive variable that continuously reflects oxygenation, was first reported in 2016. With the 2018 update of ORi, the scaling between 0.00 and 1.00 was modified. This article provides a follow-up report on the relationship between the updated ORi and arterial partial pressure of oxygen (PaO<sub>2</sub>), based on our previous study using the original version of ORi.</p><p><strong>Methods: </strong>The updated ORi version analyzed in the present study used a Revision M sensor. Twenty adult patients who were scheduled for surgery under general anesthesia with arterial catheterization were enrolled. After induction of general anesthesia, arterial blood gas analysis was performed with the fraction of inspiratory oxygen (FiO<sub>2</sub>) set at 0.33. The PaO<sub>2</sub> and ORi at the time of blood collection were recorded. After that, FiO<sub>2</sub> was changed to achieve an ORi of around 0.5, 0.2, or 0, followed by arterial blood gas analysis. The relationship between ORi and PaO<sub>2</sub> was then investigated using the data obtained.</p><p><strong>Results: </strong>Seventy-six datasets from the 20 patients were analyzed. When PaO<sub>2</sub> was < 240 mmHg (n = 73), linear regression analysis showed a relatively positive correlation (r<sup>2</sup> = 0.4683). The cut-off ORi value obtained from the receiver operating characteristic curve to detect PaO<sub>2</sub> ≥ 150 mmHg was 0.45 (sensitivity 0.833, specificity 0.810). Four-quadrant plot analysis demonstrated that ORi has good trending ability with respect to PaO<sub>2</sub> (concordance rate was 100.0%).</p><p><strong>Conclusion: </strong>Although the original and updated versions of ORi demonstrate similar properties regarding their ability to track PaO<sub>2</sub> changes, the updated version has a wider absolute value range. Therefore, caution is warranted when interpreting ORi values, as absolute values may vary significantly between versions, even at the same PaO<sub>2</sub> level.</p>","PeriodicalId":14635,"journal":{"name":"JA Clinical Reports","volume":"11 1","pages":"34"},"PeriodicalIF":0.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12170485/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144302094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}