Ultrasound-Guided Umbilical Venous Catheter Insertion With Alignment of the Umbilical Vein and Ductus Venosus

Previous studies have highlighted the importance of confirming the position of an umbilical venous catheter (UVC) tip by an ultrasound (US) examination. However, methods for preventing insertion into the portal circulation under US guidance have not yet been established. We report 15 cases in which a UVC was successfully passed through the ductus venosus by compressing the upper abdomen near the portal sinus of the liver to align the umbilical vein and ductus venosus under US guidance. The UVC was inserted into the correct position in 14 of the 15 neonates (93%) without complications.     

彩色多普勒超声在处置 PICC 导管置入异位及血栓并发症中的应用价值

目的：探讨彩色多普勒超声在经外周静脉置入中心静脉导管（ peripherally ineserted central catheter ,PICC）异位后实时处置引导正位的作用及出现血栓等并发症时的应用价值。方法选取经外周静脉血管行导管置入术的122例肿瘤化疗患者为研究对象,在X线发现有导管异位后立即在彩超引导下行位置调整及再固定,并对实施PICC导管置管后的肿瘤化疗患者或化疗结束即将拔管的肿瘤患者行外周血管彩超检查。结果122例中,X线发现有18例导管置入发生异位,均在彩超引导下一次调整成功;并经彩超检查发现有10例外周血管发生血栓形成。结论彩色多普勒超声有助于对肿瘤化疗患者置管过程中出现的导管尖端异位准确复位,并对置管后出现的血栓等并发症准确判断,为临床处置提供及时协助。     

血管超声检查联合反送导丝检查法在中心静脉置管中的应用

目的 探讨血管超声联合反送导丝检查法在中心静脉置管过程中的作用。方法 实验组628例在采取常规方法置入中心静脉导管的基础上加用血管超声检查联合反送导丝检查法,通过血管超声检查颈内静脉、锁骨下静脉、腋静脉内有无导管影或导管影是否正常,以及检查退出导丝能否顺利反送到预定刻度,来判断导管有无异位和打折;对照组555例只采取常规方法置管,最终通过X线检查有无导管异位和导管打折。结果 实验组发生导管异位5例,异位率0.8%。对照组发生导管异位33例,异位率5.9%。两组患者置管导管异位率进行统计学分析,差异有显著意义（P〈0.01）。结论 血管超声检查联合反送导丝检查法对中心静脉导管异位和导管打折,能早期发现,及时调整,从而起到较好的预防作用。     

时间空间相关成像技术联合断层超声显像技术在产前筛查常见心脏位置异常中的应用价值

目的:探讨时间空间相关成像技术联合断层超声显像技术(TUI-STIC技术)在产前筛查常见心脏位置异常中的临床应用价值。方法:应用时间空间相关成像技术采集胎儿心脏的容积图像,再应用断层超声显像技术进行分析,要求清晰显示上腹部横切面及四腔心切面并标明左右方位。结果:199例心脏位置异常胎儿心脏容积数据经断层超声显像技术处理均获得满意的上腹部横切面及四腔心切面。其中右位心67例;左旋心5例;中位心7例;异位心2例;心脏移位107例;心脏异构11例。结论:判断胎儿心脏位置的主要切面是上腹部横切面和四腔心切面。时间空间相关成像技术联合断层超声显像技术简易、准确,可作为产前筛查胎儿心脏位置异常的有效方法。     

Repositioned lateral crural flap technique for cephalic malposition in rhinoplasty

BACKGROUND:

Cephalic malposition of the lower lateral cartilage (CMLLC) is a relatively common anatomical variant, particularly in Middle Eastern patients. The characteristics of CMLLC include long alar creases, a boxy and ball-shaped nasal tip, parenthesis tip deformity and external valvular incompetence. The gold standard for correcting CMLLC is the lateral crural strut graft (Gunter graft), but many patients experience problems after this technique.

OBJECTIVE:

To evaluate the efficacy of the repositioned lateral crural flap (RLCF) technique in correcting CMLLC, and to discuss the cosmetic and functional results.

METHODS:

In the present study, 123 primary septorhinoplasty operations using the RLCF technique were performed between May 2012 and March 2013. The mean follow-up period was 11.4 months (range nine to 24 months). Four parameters were measured and compared pre- and postoperatively: the angle between the line connecting the maximum convexity of the lower lateral cartilage (LLC) to the tip-defining point and midline on each side (angle of rotation); the total distance between the maximum convexity of LLC right and left to midline (representing the size of the parenthesis deformity); satisfaction scale rating of the patients’ nasal tip appearance; and the satisfaction scale rating of patients’ breathing through their nostrils.

RESULTS:

The mean angle of the LLC to the midline significantly increased and the mean distance between the maximum convexities was significantly reduced, indicating correction of the malposition and reduction of the parenthesis deformity, respectively. The mean satisfactory scale ratings of nasal tip appearance and breathing quality were also significantly improved.

CONCLUSION:

CMLLC can be corrected using the RLCF technique, resulting in both aesthetic and functional improvements.     

Implant malposition and revision surgery in primary orbital fracture reconstructions

The aim of the study was to assess factors leading to revision surgery and implant position of primary orbital fracture reconstructions.A retrospective cohort included patients who underwent orbital floor and/or medial wall fracture reconstruction for recent trauma. Demographics, fracture type, surgery and implant-related variables, and postoperative implant position were analyzed.The overall revision surgery rate was 6.5% (15 of 232 surgeries). The rate was highest in combined midfacial fractures with rim involvement (14.0%), lower in zygomatico-orbital fractures (8.7%), and lowest in isolated blowout fractures (3.8%). Fracture type, orbital rim fixation and implant malposition predicted revision. The best positioning was achieved with patient-specific milled titanium implants (mtPSI) and resorbable materials, whereas the poorest with preformed three-dimensional titanium plates.Combined midfacial fractures with rim involvement in particular have a high risk for orbital revision surgery. Within the limitations of the present study, mtPSIs should be preferred in the reconstruction of primary orbital fractures if possible.     

Preliminary observations on the colibri CO2-indicator

The performance of a new colorimetric CO₂-indicator (Colibri) was assessed in mini-pigs. It performed well during 8-hour procedures. Neither nitrous oxide, nor halothane, nor carbon monoxide, nor intratracheal application of drugs (epinephrine, atropine, lidocaine, and naloxone) interfered with its function. It gave a distinct color change at high ventilation frequencies up to 120/min. The only problem observed was difficulty in matching the colors displayed with the comparison color chart provided. The Colibri's performance seems at least equal to that of the EasyCAP detector, although both devices share some disadvantages (no alarms, semiquantitative, difficult reading in the dark). After initial control of endotracheal tube position by an esophageal detector device, both the Colibri and the EasyCAP seem suited for monitoring of ventilation and circulation if quantitative capnometry is unavailable.     

Transabdominal-transperitoneal ultrasound-guided oocyte retrieval in a patient with müllerian agenesis

OBJECTIVE: To describe the approach of transabdominal-transperitoneal ultrasound-guided oocyte retrieval undertaken in a patient with müllerian agenesis and ovarian malposition who underwent a successful gestational carrier treatment cycle. DESIGN: Case report. SETTING: A tertiary-referral reproductive medicine unit. PATIENT(S): A 26-year-old patient with müllerian agenesis. Her 44-year-old mother served as the gestational carrier. INTERVENTION(S): Controlled ovarian hyperstimulation, transabdominal-transperitoneal ultrasound-guided oocyte retrieval, embryo transfer. MAIN OUTCOME MEASURE(S): Oocyte recovery rate, fertilization rate, pregnancy test. RESULT(S): Six oocytes were retrieved using a percutaneous transperitoneal needle puncture under ultrasound guidance. Two cleavage-stage embryos were transferred to the gestational carrier, resulting in a twin pregnancy. CONCLUSION(S): For various reasons, patients with müllerian agenesis may not be candidates for standard transvaginal ultrasound-guided oocyte retrieval. Although laparoscopic oocyte retrieval has been frequently used in this setting, the approach of transabdominal-transperitoneal ultrasound-guided oocyte retrieval may offer further advantages in select cases.