Calibre e formato de agulhas e sua relação com a incidência de cefaleia pós-punção dural: uma revisão sistemática / Needles gauge and shape and its relation to post-dural puncture headache incidence: a systematic review

Introdução: A cefaleia pós punção dural (CPPD) é uma complicação da punção lombar, um procedimento que, apesar de bem tolerado, está sujeito a adversidades, ocorrendo devido a um vazamento persistente do líquido cefalorraquidiano (LCR) do local da punção dural. A incidência de CPPD pode estar relacionada às características dos pacientes e dos procedimentos. Notou-se que em mulheres jovens até 30 anos, o risco de CPPD é maior quando comparado aos homens, não apresentando diferença a partir da quinta década de vida. Objetivo: investigar os diferentes sintomas e efeitos gerados pelos diferentes tipos de agulha, como calibre e modo de inserção, que visem reduzir a CPPD. Métodos: Trata-se de uma revisão sistemática de literatura realizada no período de 2 de agosto a 20 de novembro de 2023 por meio de pesquisas no PubMed. Foram utilizados os descritores: "Post-Dural Puncture Headache" e suas variações do MeSH, sendo submetidos aos critérios de inclusão: estudos em humanos, nos últimos 10 anos, ensaios clínicos e ensaios clínicos controlados e randomizados. Para garantir a qualidade da revisão sistemática foi aplicada a lista de verificação PRISMA de 2020. Resultados: Após investigação estatística, observou-se que as agulhas 25W e 25S demandaram maior tempo médio para a coleta de LCR (15 e 7 min, respectivamente). Ao se comparar 25W com 20Q (3 min), 22S (5 min) e 25S quanto à esta variável, observouse diferença significativa em todas as comparações. Conclusão: As agulhas do tipo atraumática foram associadas com redução do risco de desenvolvimento de CPPD quando comparadas às convencionais. Foi constatado que, dentre as agulhas convencionais, a traumática de 25G é melhor para a prevenção de CPPD que a de 22G.

Introduction: Post-Dural Puncture Headache (PDPH) is a complication of lumbar puncture, a procedure that, despite being well-tolerated, is subject to adversities, occurring due to a persistent leakage of cerebrospinal fluid (CSF) from the site of dural puncture. The incidence of PDPH may be related to patient and procedural characteristics. It has been noted that in young women up to 30 years old, the risk of CPPD is higher compared to men, with no difference between sexes from the fifth decade of life onward. Objective: To investigate the different symptoms and effects generated by different types of needles, such as gauge and insertion method, aiming to reduce CPPD. Methods: Is a systematic literature review conducted from August to October 2023 through searches on PubMed. The descriptors "Post-Dural Puncture Headache" and its MeSH variations were used. A total of 1,839 articles were found, which were then subjected to inclusion criteria: studies conducted in the last 10 years, controlled trials, and randomized clinical trials. Results: After statistical investigation, it was observed that the 25W and 25S needles required a longer average time for cerebrospinal fluid collection (15 and 7 minutes, respectively). When comparing 25W with 20Q (3 minutes), 22S (5 minutes), and 25S regarding this variable, a significant difference was observed in all comparisons. Conclusion: Atraumatic needles were associated with a reduction in the risk of developing CPPD compared to conventional needles. It was found that among conventional needles, the traumatic 25G needle is better for preventing CPPD than the 22G needle.

Use of Thread-hanging Microwave Antenna to Assist in Precise Puncture of Lung Nodule and Influencing Factors / 肿瘤防治研究

Objective To explore a precise method with a microwave antenna for puncture of pulmonary nodules and analyze phenomena that affect the puncture results. Methods Clinical data of 107 cases with solitary malignant pulmonary nodules were collected, and the mean length of pulmonary nodules was 13.6±0.6 mm in CT axial position. A thread-hanging method was used to assist the puncture of pulmonary nodules. The procedure was successful when the needle was not withdrawn and inserted into the central region of the nodule. The success rate and complications of the pulmonary procedure were recorded. The incidence of the following phenomena were also documented: needle coercing, needle slipping, needle tip pushing, pulmonary nodule prolapsing, radial nodule deformation, nodular masking, and radial movement distance of needle tip. Results In all of 107 cases evaluated, the antenna puncture was successful in 101 cases (94.4%) but failed in 6 cases (5.6%). Pneumothorax and pulmonary hemorrhage occurred in 23 (21.5%) and 19 cases (17.8%), respectively. The following phenomena occurred: needle coercing in 9 cases (8.4%), needle slipping in 6 cases (5.6%), needle tip pushing in 19 cases (17.8%), pulmonary nodule prolapsing in 15 cases (14%), radial nodule deformation in 14 cases (13.1%), and nodular masking in 5 cases (4.7%). The mean radial adjusting distance of needle tip was 0.7±0.4 cm. Conclusion The thread-hanging method can assist in the accurate puncture of microwave antenna for pulmonary nodules. We should focus and deal with phenomena that may occur and affect the result of puncture.

Incidence and risk factors of post dural puncture headache after spinal anesthesia in Tripoli Hospitals

Post Dural Puncture Headache (PDPH) remains a prominent clinical concern to the present day and common complication seen in the field of anesthesiology and pain medicine. Identification of such risk factors is a crucial step in the rational modification of anesthetic practice and evaluation of therapeutic interventions. This study was conducted to demonstrate the incidence and risk factors of PDPH in patients after spinal Anesthesia during three days' post operations at general hospital in Tripoli, Libya. In this study certain factors related to patient history, baseline clinical state or anesthetic technique might be associated with an increased risk for this side effect, so it was collected historical, physiologic, and technical data to determine their association with PDPH. Out of total of 100 patients distributed over 5 different hospitals admitted over a period (from November 2020 to April 2021) 27% of them have a PDPH, while 92.5% of cases with PDPH are females, that 55.6% of PDPH cases are between 20 and 25 years old, and this percentage getting smaller as patients get older, most of the operations were caesarean section, at a rate of 58%, followed by lower abdominal surgeries with 19% of cases, and orthopedic surgeries with 17% of cases, while the lowest percentage was for the Urologic surgeries. 55% of cases with PDPH are classified as (case I), and 44% of them are classified as (case II), 81.5% of PDPH cases used noncutting needles. In this study the PDPH remains the most problem in hospitalized patients after spinal Anesthesia at Tripoli hospitals can be caused by variety of risk factors, associated with ASA physical states, nonprofessional technique, the females are more common than males and the percentage increasing in early age group

Trans-nasal sphenopalatine ganglion block for post-dural puncture headache management: a meta-analysis of randomized trials

Abstract Objective: To evaluate the efficacy and safety of trans-nasal Sphenopalatine Ganglion (SPG) block over other treatments for Post-Dural Puncture Headache (PDPH) management. Methods: A systematic literature search was conducted on databases for Randomized Controlled Trials (RCTs) comparing trans-nasal SPG blockade for the management of PDPH over other treatment modalities. All outcomes were pooled using the Mantel-Haenszel method and random effect model. Analyses of all outcomes were performed as a subgroup based on the type of control interventions (conservative, intranasal lignocaine puffs, sham, and Greater Occipital Nerve [GON] block). The quality of evidence was assessed using the GRADE approach. Results: After screening 1748 relevant articles, 9 RCTs comparing SPG block with other interventions (6 conservative treatments, 1 sham, 1 GON and 1 intranasal lidocaine puff) were included in this meta-analysis. SPG block demonstrated superiority over conservative treatment in pain reduction at 30 min, 1 h, 2 h, 4 h after interventions and treatment failures with "very low" to "moderate" quality of evidence. The SPG block failed to demonstrate superiority over conservative treatment in pain reduction beyond 6 h, need for rescue treatment, and adverse events. SPG block demonstrated superiority over intranasal lignocaine puff in pain reduction at 30 min, 1 h, 6 h, and 24 h after interventions. SPG block did not show superiority or equivalence in all efficacy and safety outcomes as compared to sham and GON block. Conclusion: Very Low to moderate quality evidence suggests the superiority of SPG block over conservative treatment and lignocaine puff for short-term pain relief from PDPH. PROSPERO Registration: CRD42021291707.

Hoja de cuchillo retenida en el hueco axilar

Introducción: El hallazgo de un cuerpo extraño retenido, específicamente una hoja de cuchillo es infrecuente. En ocasiones, estos cuerpos extraños pasan inadvertidos y se diagnostican de forma diferida o retrasada. Objetivo: Describir el diagnóstico y tratamiento de un paciente con una hoja de cuchillo retenida en el hueco de la axila. Caso clínico: Varón de 25 años, agredido con un cuchillo, que sufrió una herida en la región posterior del hombro y fue suturado sin realizar ningún examen complementario. Dos semanas después acudió por molestias en el hombro lesionado, se indicó radiografía en la cual apareció una imagen radiopaca que correspondió con una hoja de cuchillo en proyección subescapular. Refería molestias del hombro e impotencia funcional. Se opera con anestesia general, se realiza incisión axilar, se identifica el objeto, en íntimo contacto con la vena axilar; la punta hacia el vértice axilar, cruzando bajo la vena axilar en su entrada al tórax. Se extrajo el cuerpo extraño bajo visión directa, sin complicaciones. El paciente evolucionó favorablemente. Conclusiones: Los cuerpos extraños retenidos, que pasan inadvertidos son raros, sin embargo, existen regiones como la axila en que por las características anatómicas del espacio se dificulta su diagnóstico. En este caso coincidió una combinación poco usual de fenómenos, la actitud defensiva del lesionado y la dirección de la herida, que propiciaron quedara la hoja en el hueco axilar.

Introduction: The finding of a retained foreign body, specifically a knife blade, is a rare event. Sometimes these foreign bodies go unnoticed and are diagnosed deferred or delayed. Objective: To describe the diagnosis and treatment of a patient with a knife blade retained on axillary hole. Clinical case: 25-year-old male, attacked with a knife, who suffered a wound in the posterior region of the shoulder and was sutured without performing any complementary examination. Two weeks later, he came due to discomfort from the injured shoulder. An X-ray of the shoulder was indicated, where a radiopaque image appeared that corresponds to the knife blade, in subscapular projection. He refers shoulder discomfort and functional impotence. It is operated under general anesthesia, axillary incision, the object is identified in intimate contact with the axillary vein, the tip towards the axillary vertex, crossing under the axillary vein at its entrance to the thorax, the foreign body is removed under direct vision and without complications. Evolved favorably. Conclusions: Retained foreign bodies that go unnoticed are rare. However, there are regions such as the armpit where, due to the anatomical characteristics of the space, their diagnosis is difficult. In this case, an unusual combination of phenomena coincided, the defensive attitude of the injured person and the direction of the lunge, which led to the blade remaining in the axillary hole.

Prevalence, Risk Factors and Clinical Features of Post Dural Puncture Headache (PDPH): A Prospective Study

Background: Post-dural puncture headache (PDPH), formerly known as post-lumbar puncture headache, is a well-known adverse event that follows diagnostic and/or therapeutic puncture of the dura, or accidentally, following spinal anesthesia. Material & Methods: This prospective study was carried out on 152 patients at Shaheed Ziaur Rahman Medical College Hospital in Bogura, from 2013 to 2015 and North Bengal Medical College from 2016 to 2022, Bangladesh. Results: A total of 152 patients were enrolled into the study where 122(80.3%) were aged between 18-28 years, 30(19.7%) were 29-39 years, 38(25%) were male and 114(75%) were female. 122(80.3%) patients were non obese (<25) and 30(19.7%) were obese (>25). 17(11.2%) patients had previous history of anaesthesia and 17(11.2%) had previous history of PDPH. On majority 100 patients were used big size needle (18-23 G) and rest of the patients were used small (23-25G). 146 (96.1%) patients position was lateral and 92(60.5%) were used less than two or equal three drops. 61(40.1%) patients were needed one attempt, 64(42.1%) were needed two and 27(27.8%) were needed greater than two. The prevalence of PDPH was found in 44(28.9%) cases out of 152 where severity of 29(65.9%) percent was mild, 20(45.5%) cases headache onset were at the first day and mean duration of headache was 2.6. There was a statistically significant association between development of PDPH and younger age (26.3±8.7 years vs 32.6±7.4, p< 0.001), female gender (p=00.009), previous history of PDPH (p<0.001), number of attempts (3.1±1.2 vs 1.2±0.8, p<0.001), small needles (p=0.04), pre LP headache (p<0.001) and CSF RBS (2.6±2.1 vs 13.8±1.3, p= 0.48). Conclusion: This study recommends that the neurologists should be treating this population in the manner so that it may help to prevent this painful adverse event, and identification of risk variables is vital in predicting PDPH.

Lumbar puncture for neurosyphilis investigation in asymptomatic patients with HIV-syphilis coinfection: a cross-sectional study among infectious disease specialists

ABSTRACT BACKGROUND: Syphilis is a major public health issue worldwide. In people living with human immunodeficiency virus (PLHIV), there are higher incidences of both syphilis and neurosyphilis. The criteria for referring PLHIV with syphilis for lumbar puncture is controversial, and the diagnosis of neurosyphilis is challenging. OBJECTIVE: To describe the knowledge, attitudes, and practices of infectious disease specialists and residents in the context of care for asymptomatic HIV-syphilis coinfection using close-ended questions and case vignettes. DESIGN AND SETTING: Cross-sectional study conducted in three public health institutions in São Paulo (SP), Brazil. METHODS: In this cross-sectional study, we invited infectious disease specialists and residents at three academic healthcare institutions to answer a self-completion questionnaire available online or in paper form. RESULTS: Of 98 participants, only 23.5% provided answers that were in line with the current Brazilian recommendation. Most participants believed that the criteria for lumbar puncture should be extended for people living with HIV with low CD4+ cell counts (52.0%); in addition, participants also believed that late latent syphilis (29.6%) and Venereal Disease Research Laboratory (VDRL) titers ≥ 1:32 (22.4%) should be conditions for lumbar puncture in PLHIV with no neurologic symptoms. CONCLUSION: This study highlights heterogeneities in the clinical management of HIV-syphilis coinfection. Most infectious disease specialists still consider syphilis stage, VDRL titers and CD4+ cell counts as important parameters when deciding which patients need lumbar puncture for investigating neurosyphilis.

It's not always postdural puncture headache: a case report and note to the astute anesthesiologist

Abstract Dural puncture is either diagnosed by unexpectedly profound response to medication test dose or development of a postpartum postural headache. Epidural blood patch is the gold standard for treatment of PDPH when conservative management fails. However, postpartum headaches can be resistant to multiple epidural blood patches. In such cases, preexisting intracranial processes should be considered and ruled out. We report here the unique case of a pregnant patient who developed a resistant headache in the postpartum period related to an incidental intracranial aneurysm. Subsequent treatment with endovascular embolization adequately relieved her symptoms. Early surgical consultation and a multidisciplinary team approach involving neurology and neuroimaging is required for successful management of patients such as the one described here.

Early versus late sphenopalatine ganglion block with ropivacaine in postdural puncture headache: an observational study

Abstract Background Postdural puncture headache (PDPH) is a common complication of neuraxial techniques which delays patients' discharge. Sphenopalatine ganglion block (SPGB) is a safe bedside technique with comparable efficacy to Epidural Blood Patch, the gold-standard treatment. There is no evidence on the ideal timing for SPGB performance. We aimed to evaluate the difference between early versus late SPGB concerning efficacy, symptom recurrence and hospital length of stay. Methods We present an observational study with 41 patients diagnosed with PDPH who were submitted to SPGB with ropivacaine 0,75%. The study sample (n = 41) was divided in two groups: an early (less than 24 hours after diagnosis) and a late (more than 24 hours after diagnosis) SPGB group. Pain was evaluated 15 minutes after the block and follow up occurred daily until patients were discharged. Patients' demographic characteristics, neuraxial technique, timing of SPGB, qualitative pain relief and post-SPGB length of stay were registered and analyzed with SPSS statistics (v26) software. Results Early SPGB resulted in a significant reduction in length of stay (p = 0,009) and symptom recurrence (p = 0,036), showing equally effective pain relief, compared to late SPGB. Conclusions SPGB was equally effective in both groups. Data showed that early SPGB reduces length of hospital stay and symptom recurrence, which potentially allows early resumption of daily activities and a reduction in total health costs.

Uncalibrated Positioning Method for Puncture Robots Based on Optical Navigation / 中国医疗器械杂志

Robotic puncture system has been widely used in modern minimally invasive surgery, which usually uses hand-eye calibration to calculate the spatial relationship between the robot and the optical tracking system. However, the hand-eye calibration process is time-consuming and sensitive to environmental changes, which makes it difficult to guarantee the puncture accuracy of the robot. This study proposes an uncalibrated positioning method for puncture robot based on optical navigation. The method divides the target path positioning into two stages, angle positioning and position positioning, and designs angle image features and position image features respectively. The corresponding image Jacobian matrix is constructed based on the image features and updated by online estimation with a cubature Kalman filter to drive the robot to perform target path localization. The target path positioning results show that the method is more accurate than the traditional hand-eye calibration method and saves significant preoperative preparation time by eliminating the need for calibration.

Application comparison of CT-guided localization with medical glue or puncture needle for pulmonary ground-glass nodules before thoracoscopic resection / 肿瘤研究与临床

Objective:To investigate the application value of CT-guided localization with medical glue or puncture needle before thoracoscopic pulmonary ground-glass nodule resection.Methods:The clinical data of 92 patients who underwent localization before thoracoscopic resection of pulmonary ground-glass nodules in Beijing Chao-Yang Hospital from June 2019 to November 2022 were retrospectively analyzed. According to the preoperative localization method, the patients were divided into puncture needle group (52 cases) and medical glue group (40 cases). The localization success rate, localization time and incidence rate of complications were compared between the two groups.Results:The success rate of localization in both groups was 100%. In puncture needle group, the guide wire of 1 case (1.9%) prolapsed, but it did not affect the surgical resection. The localization time of puncture needle group and medical glue group was (18±6) min and(14±5) min, and there was a statistical difference between the two groups ( t = 3.06, P = 0.003). The incidence of bleeding and pneumothorax in medical glue group was lower than that in puncture needle group [12.5% (5/40) vs. 38.5% (20/52), χ2 = 7.70, P = 0.009; 35.0% (14/40) vs. 71.2% (37/52), χ2 = 11.96, P = 0.001]. The incidence rate of irritating cough in was higher than that in puncture needle group [50.0% (20/40) vs. 11.5% (6/52), χ2 = 16.50, P < 0.05]. Conclusions:CT-guided localization with medical glue or puncture needle can achieve satisfactory results in the localization of pulmonary ground-glass nodule before thoracoscopic resection and help to improve the accuracy of surgical resection. The incidence rates of bleeding and pneumothorax of medical glue localization are lower than those of puncture needle localization.

Effectiveness and safety of local anesthesia in patients with PI-RADS score 5 and ECOG score ≥2 for prostate puncture / 中华泌尿外科杂志

Objective:To investigate the effect of local anesthesia in patients with a PI-RADS score of 5 and ECOG score ≥2 for prostate puncture.Methods:Retrospective analysis of case data of 33 patients admitted to the Subei People's Hospital for prostate puncture from April 2020 to April 2022. Age (82.5±3.6) years. There were 18 cases with hypertensive disease, 8 cases with diabetes mellitus, and 6 cases with both diabetes mellitus and hypertensive disease. Body mass index (25.2±3.5) kg/m 2. prostate-specific antigen (PSA)(131.5±69.7) ng/ml. prostate volume (38.5±21.4) ml. all patients had a PI-RADS score of 5 on multiparametric magnetic resonance (mpMRI) and an Eastern Cooperative Oncology Group (ECOG) score ≥2. All 33 cases in this group underwent trans-perineal targeted prostate puncture using local anesthesia at the tip of the prostate. The visual analog score (VAS) and visual numeric score (VNS) were applied by the same surgeon to assess the patient's pain level and satisfaction at the time of puncture (VAS-1 and VNS-1) and 30 min after puncture (VAS-2 and VNS-2), and to record the duration of the procedure and the occurrence of postoperative complications. Results:In this group of 33 cases, the VAS-1 score was (1.9±0.3) and the VAS-2 score was (0.1±0.2); the VNS-1 score was (2.9±0.2) and the VNS-2 score was (3.9±0.1). Postoperative pathological results indicated that one of the 33 patients had a negative puncture result (pathology report indicating interstitial inflammation), while the rest of the patients had a positive puncture pathology report (puncture pathology report indicating prostate cancer), with a positive rate of 97%. One case of postoperative carnal haematuria occurred, which gradually improved after the patient was advised to drink water and take alpha-blockers. No perineal hematoma occurred, and all patients did not suffer complications such as urinary tract infection, urinary retention, azoospermia, vagal reaction, and infectious shock.Conclusion:In patients with a PI-RADS score of 5 and ECOG score ≥2, the use of single-hole local anesthesia for performing trans-perineal targeted puncture biopsy has the advantages of good paroxysmal pain and high safety.

Clinical efficacy and outcome analysis of early abdominal paracentesis drainage for treating patients with severe acute pancreatitis / 中华胰腺病杂志

Objective:To analyse the clinical efficacy and outcome of early abdominal paracentesis drainage (APD) in the treatment of severe acute pancreatitis (SAP).Methods:The clinical data of 107 SAP patients with massive abdominal fluid in Shanghai General People Hospital from May 2017 to December 2021 were collected and analyzed. Patients were divided into APD group ( n=56) and NO-APD group ( n=51) according to whether they underwent APD or not within 3 days after admission. The APD group was then divided into abdominal compartment syndrome (ACS) subgroup ( n=29) and NO-ACS subgroup ( n=27) according to whether ACS had occurred or not at the time of puncture. Patients' general data, the duration of systemic inflammatory response (SIRS), length of ICU stay, the trends of intra-abdominal pressure and inflammatory indicators (white blood cell count and the content of C-reactive protein) within 1-3 days after admission, incidence of infection complication, step-up therapy, discharge or death were recorded. Results:The intra-abdominal pressure were 18.6±5.6mmHg , 13.7±4.2mmHg (1 mmHg=0.133 kpa) in APD group and NO-APD group, respectively. The intra-abdominal pressure of APD group was significantly higher than that of NO-APD group, and the difference was statistically significant ( P=0.000). Compared with NO-APD group, the duration of SIRS was significantly shortened in APD group [3(2, 4) days vs 4(3, 6) days, P=0.029]. On day 1, 2 and 3 after admission, the intra-abdominal pressure was 18.6±5.6 mmHg, 16.4±4.7 mmHg and 13.5±3.9 mmHg in APD group, and was 13.7±4.2 mmHg, 12.3±3.6 mmHg and 11.0±2.6 mmHg in NO-APD group, respectively. The intra-abdominal pressure of the APD group dropped faster than the NO-APD group ( P=0.004). The white blood cell count was (14.8±4.8), (10.5±4.5) and (9.0±3.8)×10 9/L in APD group, and was (14.2±5.4), (12.3±7.3), (11.7±5.3)×10 9/L in NO-APD group, respectively. Compared with the NO-APD group, the decrease rate of white blood cell count was faster in APD group ( P=0.006). The C-reactive protein content was (153.6±47.1), (150.4±10.5) and (108.8±49.4)mg/L in APD group, and were (174.8±31.1), (191.6±29.4) and (186.8±45.5)mg/L in NO-APD group . The content of C-reactive protein in APD group decreased significantly, while that in NO-APD group did not decrease. There was a significant difference between the two groups ( P=0.009). In the subgroup comparisons, the duration of SIRS in the ACS subgroup was significant longer than that in the NO-ACS subgroup [4(3, 5) days vs 2(1, 3)days, P=0.000]. Compared between the two groups and two subgroups respectively, there were no statistically significant differences on length of ICU stay, infection complication rate, advanced treatment rate and mortality. Conclusions:For SAP patients with abdominal fluid, APD in the early stage could shorten the duration of SIRS, decrease intra-abdominal pressure rapidly, improve inflammatory indicators, but could not improve the clinical outcome.

Determination of 50% effective concentration of ropivacaine plus sufentanil in dural puncture epidural analgesia for labor / 中国医师进修杂志

Objective:To determine the 50% effective concentration (EC 50) of ropivacaine plus sufentanil for labor analgesia using the dural puncture epidural technique. Methods:Using the method of prospective study, sixty parturients requiring labor analgesia in Dalian Women and Children′s Medical Group from May 2021 to May 2022 were divided into six groups using a random number table and administered 0.3 mg/L sufentanil and ropivacaine at different concentrations: 0.05% (group D1), 0.06% (group D2), 0.07% (group D3), 0.08% (group D4), 0.09% (group D5), and 0.1% (group D6). A probit model was constructed to compute the EC 50 values and 95% confidence intervals (95% CI) of ropivacaine plus sufentanil in dural puncture epidural analgesia (DPEA) for labor. The pain intensity of uterine contractions before labor analgesia and 30 min after administration was recorded and assessed on a numeric rating scale (NRS), and decreases in blood pressures and heart rates, vomiting and nausea, postpartum headaches, and fetal bradycardia were documented. Results:When using ropivacaine plus sufentanil for labor analgesia via DPE, the EC 50 was 0.061%, and the 95% CI ranged from 0.051 to 0.067; the 90% effective concentration (EC 90) was 0.081%, and the 95% CI was between 0.074 and 0.098. Among the six groups, there was one case of fetal bradycardia in group D3 and one case of decreased heart rates in group D4. No decreased blood pressure, vomiting and nausea, or postpartum headaches were reported. Conclusions:In DPEA for labor, ropivacaine plus sufentanil has an EC 50 of 0.061%, with the 95% CI falling between 0.051 and 0.067, similar to the EC 50 value in epidural analgesia.

The efficacy of laparoscopic ovarian cyst aspiration in the treatment of neonatal simple ovarian cyst / 中国新生儿科杂志

Objective:To study the efficacy of laparoscopic ovarian cyst aspiration in the treatment of neonatal simple ovarian cyst.Methods:From August 2019 to December 2021, infants with neonatal simple ovarian cyst receiving laparoscopic ovarian cyst aspiration in the Department of Pediatrics of Gansu Provincial Maternity and Child-care Hospital were retrospectively studied. The clinical characteristics, age of surgery, operation duration, length of hospital stay, complications and follow-up were analyzed.Results:A total of 6 full-term infants were included. Simple ovarian cysts were located on the right side of the body in 5 cases and on the left in 1 case. The average cyst diameter was (6.1±1.4) cm, the surgery were performed at 2~5 d of age, the average duration of the surgery was (18.8±2.4) min and the average hospital stay was (5.3±1.0) d. No complications occurred before or after surgery. All the 6 infants had favorable growth and development. The ovarian cysts were all enlarged again in 1 month after surgery, then gradually shrunk at 3 to 6 months after surgery and completely resolved in 2 cases.Conclusions:Neonatal simple ovarian cysts are more common on the right side of the body and laparoscopic ovarian cyst aspiration has good and safe clinical efficacy.

Puncture and Needle Picking Action of Venipuncture Manipulator / 医用生物力学

Objective To propose a new multi-joint series venipuncture system, explore the mechanics and kinematics-based related control problems involved in needle insertion and needle picking during the puncture process, and verify feasibility of this system. Methods A puncture manipulator was built, and needle displacement control algorithm was proposed by combing with the puncture mechanics model. The the forward kinematics was calculated by using DH method, so as to obtain the tip coordinates. Then the inverse kinematics was calculated by using the geometric method. The forward and inverse processes were closely connected. The position error of the end coordinates before and after needle picking was compared by using the method of kinematics positive solution-inverse solution-re-positive solution. Finally, experimental verification and simulation were conducted by combining with the physical object. Results Through simulation and experiments, accuracy of the theoretical model was verified. The needle insertion algorithm could be used to achieve success with only one needle insertion, which provided theoretical basis for the control of robot arm. The position error before and after needle picking could be controlled within 1 mm from the end trajectory. The end needle tip of robot arm was almost kept fixed during the needle picking process. Therefore, this needle picking scheme was feasible and could basically verify that the needle picking action of robot arm met the accuracy and safety requirements. Conclusions The venipuncture manipulator truly simulates the needle insertion and needle picking action during the puncture process, and can safely and accurately realize the needle insertion and needle picking action with needle tip as the fixed point, indicating that it has certain clinical value.

Risk factors and predictive effectiveness of PI-RADS after targeted combined system puncture for CsPCa patients with 3 points / 现代泌尿外科杂志

【Objective】 To investigate the risk factors and predictive effectiveness of prostate imaging reporting and data system (PI-RADS) score for patients with clinically significant prostate cancer (CsPCa) whose PI-RADS score was 3, so as to provide evidence for the diagnosis and treatment. 【Methods】 The clinical and multi-parameter magnetic resonance imaging (mpMRI) data of 153 CsPCa patients treated during Jan.2017 and Dec.2021 whose PI-RADS score was 3 were retrospectively analyzed. With PI-RADS score of 3 as the independent risk factor for CsPCa, the other relevant independent risk factors in predicting CsPCa were evaluated. 【Results】 Univariate and multivariate analyses showed that prostate-specific antigen (PSA) density and apparent dispersion coefficient (ADC) were independent risk factors for the diagnosis of CsPCa (P<0.05). Analysis of receiver operating characteristic (ROC) curve showed that combined PSA density and ADC were more effective than PSA density and ADC alone (P<0.05). 【Conclusion】 The combination of PSA density and ADC can guide clinicians to identify high-risk CsPCa patients from patients with PI-RADS score of 3 points.

Efficacy of ultrasound-guided transperineal approach for drainage of pelvic lymphatic cyst / 现代泌尿外科杂志

【Objective】 To evaluate the efficacy of ultrasound-guided transperineal puncture and drainage in the treatment of pelvic lymphatic cyst. 【Methods】 A total of 26 patients with pelvic lymphocele who failed with conservative treatment received transperineal puncture and drainage guided by rectal ultrasound. 【Results】 All operations were successful without serious complications. The symptoms in 24 patients relieved within 48 hours after catheter drainage, and 2 patients had the catheter removed after continuous drainage for 3 weeks. Of the 26 patients, 19(73.1%) were cured and 7(26.9%) were relieved. The total effective rate was 100%. 【Conclusion】 Transperineal drainage guided by rectal ultrasound is a safe and effective treatment for pelvic lymphocele.

Needle caliber and design are associated with the risk of post-dural puncture headache after diagnostic lumbar puncture / O calibre e o design da agulha estão associados ao risco de cefaleia pós-punção dural após punção lombar diagnóstica

Introduction:Post-dural puncture headache (PDPH) is defined as an orthostatic headache that develops within the first few days after performing a spinal tap and it is related to extravasation of cerebrospinal fluid (CSF) into the epidural space, resulting in CSF hypovolemia and hypotension. The risk factors for PDPH are not yet fully understood. Objective:To evaluate the risk of spontaneously reported PDPH according to the size and type of spinal tap needle. Methods:A total of 4589 patients undergoing outpatient lumbar puncture (LP) were included. All CSF collections were performed at Senne Liquor Diagnostico, a laboratory specialized in CSF collection and analysis. Patients were instructed to report by telephone if they had orthostatic headache during the first 7 days after LP to the medical team of the laboratory. Patients with previous headache were instructed to report any change in the headache pattern during the same period. Needle gauge was classified into two groups: 1) 25 G or less and 2) greater than 25 G. Two types of needles were used and compared: 1) Pencil point and 2) Quincke. Comparisons of the percentages of spontaneous reports of PDPH were made using the chi-square test. Results:141 patients (3.07%) reported PDPH to the laboratory's medical team. Needles of 25G gauge or less were used in 31.8% of cases. The percentage of patients reporting PHD in the group of 25G or less needles was 1.9% versus 3.6% in the group of larger than 25G needles (p=0.003). Pencil point needles were used in 10.6% of cases. The percentage of PHD among pencil point group was 1.4% versus 3.2% in Quincke group (p=0.026). Conclusion:25 G or finer gauge needles as well as pencil point type needles significantly reduced the risk of spontaneously reported PHD.

Introdução: A cefaleia pós-punção dural (CPPD) é definida como uma cefaleia ortostática que se desenvolve nos primeiros dias após a realização de uma punção lombar e está relacionada ao extravasamento de líquido cefalorraquidiano (LCR) para o espaço peridural, resultando em hipovolemia do LCR e hipotensão. Os fatores de risco para CPPD ainda não são totalmente compreendidos. Objetivo:Avaliar o risco de CPPD relatada espontaneamente de acordo com o tamanho e tipo de agulha de punção lombar. Métodos: Foram incluídos 4.589 pacientes submetidos à punção lombar (PL) ambulatorial. Todas as coletas de LCR foram realizadas no Senne Liquor Diagnostico, laboratório especializado em coleta e análise de LCR. Os pacientes foram orientados a relatar por telefone à equipe médica do laboratório se apresentassem cefaleia ortostática nos primeiros 7 dias após a PL. Pacientes com cefaleia prévia foram orientados a relatar qualquer alteração no padrão de cefaleia durante o mesmo período. O calibre da agulha foi classificado em dois grupos: 1) 25 G ou menos e 2) maior que 25 G. Dois tipos de agulhas foram utilizados e comparados: 1) ponta de lápis e 2) Quincke. As comparações dos percentuais de notificações espontâneas de CPPD foram feitas por meio do teste do qui-quadrado. Resultados:141 pacientes (3,07%) relataram CPPD à equipe médica do laboratório. Agulhas de calibre 25G ou menos foram utilizadas em 31,8% dos casos. A porcentagem de pacientes que relataram HDP no grupo de agulhas 25G ou menos foi de 1,9% versus 3,6% no grupo de agulhas maiores que 25G (p=0,003). Agulhas com ponta de lápis foram utilizadas em 10,6% dos casos. O percentual de DPH no grupo ponta de lápis foi de 1,4% versus 3,2% no grupo Quincke (p=0,026). Conclusão: Agulhas de calibre 25 G ou mais fino, bem como agulhas tipo ponta de lápis reduziram significativamente o risco de HP relatado espontaneamente.

Rachianesthésie en ambulatoire au Centre Hospitalier Universitaire Andrainjato Fianarantsoa, Madagascar: tolérance et efficacité / Ambulatory spinal anaesthesia at the Andrainjato University Hospital of Fianarantsoa, Madagascar: tolerance and effectiveness

La rachianesthésie ambulatoire est une des méthodes d'anesthésies loco- régionales de plus en plus utilisées car permet une réhabilitation précoce. L'objectif de l'étude est d'évaluer la tolérance et l'efficacité de la rachianesthésie réalisée en ambulatoire. Méthodes : Il s'agit d'une étude rétrospective, analytique réalisée au Centre Hospitalier Universitaire Andrainjato Fianarantsoa pendant cinq ans (du mois de janvier 2016 au mois de décembre 2020). La tolérance de la rachianesthésie était évaluée par la fréquence et la gravité des incidents peropératoires et complications postopératoires. Son efficacité était estimée par le taux de sortie le jour de l'intervention et la ré-hospitalisation. Résultats : Soixante-quatre patients âgés de 44 [14-85] ans ont bénéficié d'une chirurgie viscérale, gynécologique, traumatologique ou vasculaire sous rachianesthésie. L'hypotension artérielle (n=04) et les nausées et vomissements peropératoires (n = 01) étaient les incidents retrouvés. Les complications postopératoires étaient la céphalée (n = 13), la douleur postopératoire d'intensité modérée à intense (n = 05) et les nausées et vomissements (n = 02). L'âge supérieur à 50 ans (p = 0,012) et une dose supérieure à 12 mg de bupivacaïne (p = 0,011) étaient corrélés à l'hypotension artérielle peropératoire. Le genre féminin (p = 0,004) et l'utilisation de la bupivacaïne hyperbare (p = 0,027) étaient associés aux complications postopératoires. Tous ces patients étaient sortis le jour même de l'intervention sans ré-hospitalisation. Conclusion : La rachianesthésie ambulatoire connaît actuellement un grand essor dans la pratique anesthésique. La prévention de certaines complications devrait être systématique afin d'optimiser sa tolérance et son efficacité