Determination of Umbilical Catheter Placement Using Anatomic Landmarks

Neonatology ◽  
2010 ◽  
Vol 98 (4) ◽  
pp. 381-386 ◽  
Author(s):  
Payam Vali ◽  
Sarah E. Fleming ◽  
Jae H. Kim
Keyword(s):  
Catheter Placement ◽  
Anatomic Landmarks ◽  
Umbilical Catheter

Intraoperative Determination of the Extent of Corpus Callosotomy for Epilepsy: Two Simple Techniques

Neurosurgery ◽  
1990 ◽  
Vol 26 (1) ◽  
pp. 102-106 ◽  
Author(s):  
Issam A. Awad ◽  
Elaine Wyllie ◽  
Hans Luders ◽  
Jennifer Ahl
Keyword(s):  
Corpus Callosum ◽  
Precise Determination ◽  
Planar Geometry ◽  
Corpus Callosotomy ◽  
Midsagittal Plane ◽  
Anatomic Landmarks ◽  
Mri Scan ◽  
Simple Modification ◽  
X Ray

Abstract There is increasing interest in staged corpus callosotomy for intractable generalized epilepsy. At the first procedure, a portion (usually the anterior two-thirds) of the corpus callosum is sectioned. If seizures persist, completion of callosotomy or alternative treatment approaches can be considered. It is obviously important to ascertain that the desired extent of callosotomy was in fact accomplished at the time of initial operation. Our experience and the published literature indicate that the surgeon's impression at operation can be erroneous. We describe a technique of determining extent of corpus callosotomy during the procedure. The magnetic resonance imaging (MRI) scan in the midsagittal plane is used to select the desired extent of callosotomy. That point on the corpus callosum is characterized using simple planar geometry in relation to three anatomic landmarks in that same plane: the glabella, the inion, and the bregma (midline intersection of the coronal suture). The same point along the corpus callosum can then be located on a lateral skull xray using these same three anatomic landmarks. At surgery, an intraoperative lateral skull x-ray is obtained with a marking clip, thereby verifying the actual extent of callosotomy. We have verified the reliability of this scheme in 5 callosotomy procedures and have used this technique for intraoperative localization of midline and parasagittal targets in another 7 cases (3 tumors, 2 aneurysms, and 2 placements of interhemispheric subdural grids). In addition, we reviewed corpus callosum topography on 25 randomly selected MRI scans. A perpendicular line bisecting the glabellainion line intersects the corpus callosum at a point near its two-thirds extent in every case. This allows a quick determination of the approximate two-thirds point along the corpus callosum by skull x-ray alone, without the need of an MRI scan. The use of the new technique and its simple modification for the two-thirds callosotomy allows a precise determination of the extent of corpus callosum section at surgery and should avoid unintended deviations from the desired procedure. (Neurosurgery 26:102-106, 1990)

Are Anatomic Landmarks Reliable in Determination of Fusion Level in Posterolateral Lumbar Fusion?

Spine ◽  
1999 ◽  
Vol 24 (10) ◽  
pp. 973-974 ◽  
Author(s):  
Nabil A. Ebraheim ◽  
Chris Inzerillo ◽  
Rongming Xu
Keyword(s):  
Lumbar Fusion ◽  
Anatomic Landmarks ◽  
Fusion Level ◽  
Posterolateral Lumbar Fusion

Biliary venous fistula from umbilical catheter placement

1997 ◽  
Vol 27 (4) ◽  
pp. 333-335 ◽  
Author(s):  
K. I. Mogbo ◽  
D. C. Wang
Keyword(s):  
Catheter Placement ◽  
Umbilical Catheter ◽  
Venous Fistula

Use of low intensity roentgen ray imaging for determination of tube and catheter placement in the young primate: Implication for use of the lixiscope in the surgical neonate

1986 ◽  
Vol 21 (4) ◽  
pp. 351-354 ◽  
Author(s):  
Sterling H. Blocker ◽  
Sarah Corriveau ◽  
William T. Chao ◽  
Jeffrey Perlman ◽  
Jessie L. Ternberg
Keyword(s):  
Catheter Placement ◽  
Low Intensity

Assessment of Tibial Torsion Employing Fluoroscopy, Computed Tomography and the Cryosectioning Technique

1989 ◽  
Vol 30 (1) ◽  
pp. 75-80 ◽  
Author(s):  
B.-G. Clementz ◽  
A. Magnusson
Keyword(s):  
Computed Tomography ◽  
Tibial Fracture ◽  
Medial Malleolus ◽  
Maximum Difference ◽  
Tibial Torsion ◽  
Rotational Deformity ◽  
Anatomic Landmarks ◽  
Single Determination ◽  
Femoral Condyles

Accurate assessment of tibial torsion, particularly the rotational deformity of a stabilized tibial fracture, demands precise anatomic landmarks at the proximal and distal measuring sites of the tibia. A fluoroscopic method has been proposed, utilizing the orientation of the femoral condyles and the medial malleolus to constitute two lines of reference. The relevance of using these structures for the assessment was studied while employing fluoroscopy, computed tomography, and the cryosectioning technique in 10 necropsy specimens of the human tibia. In all specimens the lines of reference were determined by each method and the tibial torsion was measured as the angle between the lines. The medial malleolus and the femoral condyles were found to present reliable anatomic landmarks for determination of the lines of reference in all employed techniques. The maximum difference between results obtained with different methods in a given specimen was 5.4°. The average difference between results with two techniques and two observers varied from 1.0 to 1.5°. The reproducibility of the fluoroscopic method, described by the estimated standard error of a single determination, was 1.3°.

Determination of Accurate Position of Umbilical Venous Catheters in Premature Infants

2020 ◽  
Author(s):  
Selahattin Akar ◽  
Emre Dincer ◽  
Sevilay Topcuoğlu ◽  
Taner Yavuz ◽  
Hatice Akay ◽  
...  
Keyword(s):  
Intensive Care ◽  
Premature Infants ◽  
Neonatal Intensive Care ◽  
X Rays ◽  
X Ray ◽  
High Position ◽  
Umbilical Catheter ◽  
Chest X Ray ◽  
Accurate Position

Objective The aim of the study is to determine the most accurate length and position of umbilical venous catheter (UVC). Study Design This prospective study included premature infants who were admitted to the neonatal intensive care unit with inserted UVC between January 1, 2014 and December 31, 2015. The length of UVC was calculated according to the Shukla formula [(3 × birth weight + 9)/2 + 1] and the catheter was inserted under sterile conditions. After the insertion, umbilical catheter was first evaluated through chest X-ray and then with echocardiography to confirm its position. Catheters seen on the chest X-ray at the level of T9-T10 vertebrae were classified as “accurate position,” those seen above T9 vertebra as “high position,” and the catheters identified below T10 vertebra were classified as “low position.” Results A total of 68 infants smaller than 36 weeks of gestation were included in the study. In echocardiographic evaluation, 80% of the cases identified as in the “accurate position,” 100% of the cases classified as in a “high position,” and 33% of the cases defined as in a “low position” on the chest X-rays were found to be intracardiac. In our study, length of the catheter calculated according to the Shukla formula was intracardiac in 88.2% of premature infants. Conclusion Radiography alone is not sufficient for the determination of adequate position of umbilical catheter, especially in premature infants. Specialists practicing in neonatal intensive care units could improve themselves and evaluate UVC with echocardiography, making this a routine part of clinical practice. Echocardiography-guided fixation of the catheter will reduce the complications related to catheter malposition. Key Points

scholarly journals Determination Of Prevalence Of Thrombosis And Predisposing Factors In Patients Followed Up With A Central Venous Catheter In Pediatric Intensive Care Unit

2020 ◽  
Vol 7 (09) ◽  
pp. 4934-4943
Author(s):  
Merve Korkmaz ◽  
Muhammed Şükrü Paksu ◽  
Muhammet Furkan Korkmaz ◽  
Kerim Arslan ◽  
Mustafa Özdemir
Keyword(s):  
Risk Factors ◽  
Intensive Care Unit ◽  
Intensive Care ◽  
Central Venous Catheter ◽  
Pediatric Intensive Care ◽  
Venous Catheter ◽  
Catheter Placement ◽  
Central Venous ◽  
Hereditary Risk

Objective: Objective of this study is determination of prevalence of thrombosis and predisposing factors in critically ill patients with central venous catheter (CVC) placement in Pediatric Intensive Care Unit. Material and method: Of 76 cases with CVC placement aged between 1 month to 18 years; venous structures at the extremity where the CVC was placed and their symmetrical equivalents were prospectively examined by using Doppler ultrasonography (DUSG) at days 0, 3, 7, 14 and 28. Results: Median age of the cases included in the study was 19 (2-201) months. Of the cases; 49 (64.5%) was male and 27 (35.5%) was female, with a male/female ratio of 1.81:1. 55 (72.3%) of the cases had an underlying disease. Most common accompanying diseases were neurological and neuromuscular diseases (35.5%), followed by inborn errors of metabolism (14.4%). More than one catheters were placed for 26 (34.2%) of the cases. A total of 107 catheters were placed. Median catheter dwelling time was 12 (2-46) days. Most commonly placed catheters were of Seldinger type (90%). As an early complication, arterial embolism was observed in one (0.9%) case and pneumothorax in one (0.9%) case. As a late complication during the period with a catheter placed, six (7.8%) cases developed catheter infections and 11 (14.4%) cases developed catheter-induced thrombosis. Four (36.3%) of the cases which developed thrombosis were symptomatic. In six (54.4%) of the cases, thrombosis was determined to occur within first three days. When the cases were evaluated in regard to risk factors for thrombosis other than CVC placement, a significant association of CPR application (p= 0.004) and multiple catheter placement (p< 0.001) with thrombosis was determined in uni- and multivariate analyses. 72.7% of the cases with thrombosis were examined for hereditary risk factors and no significant evidence was determined. Conclusion: Our study reveals that multiple catheter placement and CPR application significantly increases risk of thrombosis. Even in absence of any clinical finding, routine evaluation with DSUG within first seven days following catheter placement is useful. Our results suggest that screening for hereditary risk factors which may cause predisposition to thrombosis in all patients with thrombosis in presence of acquired risk factors is unnecessary.

Learning Curves for Training in Ultrasonography-Based Examination of Umbilical Catheter Placement: A Piglet Study

Neonatology ◽  
2019 ◽  
Vol 117 (2) ◽  
pp. 144-150
Author(s):  
Rikke Kaae ◽  
Kasper Jacobsen Kyng ◽  
Christian A. Frederiksen ◽  
Erik Sloth ◽  
Susanne Rosthøj ◽  
...  
Keyword(s):  
Learning Curves ◽  
Catheter Placement ◽  
Umbilical Catheter
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