1.Analysis of Granulocyte Transfusions in Patients with Infections and Neutropenia: A Single Center Experience.
Se Na LEE ; Youmi HU ; Hyeon Seok EOM ; Hyewon LEE ; Eunyoung LEE ; Sun Young KONG
Korean Journal of Blood Transfusion 2016;27(3):247-256
BACKGROUND: Granulocyte transfusion therapy has been used as supportive care for patients with prolonged neutropenia after intensive chemotherapy or peripheral blood stem cell transplantation (PBSCT). Here, we investigated clinical factors of granulocyte transfusion therapy for neutropenic patients with infection to evaluate its efficacy and safety. METHODS: A retrospective analysis of 25 neutropenic patients treated with 99 granulocyte collection and granulocyte transfusion therapy from October 2011 to April 2016 at the National Cancer Center was conducted. Two groups, a count recovery group with a cut off of >1,000/µL and a no recovery group were compared and symptoms related with granulocyte transfusion were analyzed. RESULTS: Granulocyte collection and transfusions were performed in 99 procedures. After granulocyte transfusion therapy, 21 patients (84%) showed count recovery, whereas 4 patients (16%) had no response. Significant differences in pre-absolute neutrophil count (29/µL vs. 0/µL, P=0.048), duration of neutropenia before granulocyte transfusion (11 days vs. 26 days, P=0.011), and total number of granulocyte transfusion (2 times vs. 11 times, P=0.049) were observed between groups. Temporary symptoms related granulocyte transfusion were observed in seven patients (28%); however, all patients showed clinical improvement. The median of the single transfusion volume was 220 mL (200 to 397 mL) and the mean total granulocyte content was 4.92×10¹⁰. CONCLUSION: Granulocyte transfusion therapy is safe and effective for patient with life threatening neutropenia and infection, also considerable for early onset trial for granulocyte transfusion.
Drug Therapy
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Granulocytes*
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Humans
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Leukocyte Transfusion
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Neutropenia*
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Neutrophils
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Peripheral Blood Stem Cell Transplantation
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Retrospective Studies
2.Anatomic Description of the Infraorbital Soft Tissues by Three-dimensional Scanning System
Alonso Andrés Hormazábal PERALTA ; You-Jin CHOI ; Hyewon HU ; Kyung-Seok HU ; Hee-Jin KIM
Journal of Korean Dental Science 2021;14(2):101-109
Purpose:
For minimally invasive procedures, three-dimensional (3D) anatomical knowledge of the structures of the face is essential. This study aimed to describe the thickness of the skin and subcutaneous tissue and depths of the facial muscles located in the infraorbital region using a 3D scanner to provide critical clinical anatomical guidelines for improving minimally invasive cosmetic procedures.
Materials and Methods:
The 3D scanning images of 38 Korean cadavers (22 males and 16 females; age range: 51~94 years at the time of death) were analyzed. Eight facial landmarks (P1~P8) were marked on the cadaveric faces. The images were scanned in three steps–undissected face, hemiface after skinning, and revealing the facial muscles. Student’s t-test was used to identify significant differences.Result: The skin and subcutaneous tissue tended to become thicker from the upper to lower and medial to lateral aspects, and the muscles followed the same pattern as that of the most superficial located muscle and the deepest located muscles. No significant sex-related differences were found in the skin at any landmark. However, the muscles tended to be deeper in the female participants.
Conclusion
The study data can serve as a basis for creating or enhancing clinical anatomy-based guidelines or improving procedures in the infraorbital region.
3.Intramuscular neural distribution of the teres minor muscle using Sihler’s stain: application to botulinum neurotoxin injection
Kyu-Ho YI ; Soo-Bin KIM ; Kangwoo LEE ; Hyewon HU ; Ji-Hyun LEE ; Hyung-Jin LEE
Anatomy & Cell Biology 2023;56(3):322-327
The aim of this study was to elucidate the intramuscular arborization of the teres minor muslce for effective botulinum neurotoxin injection. Twelve specimens from 6 adult Korean cadavers (3 males and 3 females, age ranging from 66 to 78 years) were used in the study. The reference line between the 2/3 point of the axillary border of the scapula (0/5), where the muscle originates ant the insertion point of the greater tubercle of the humerus (5/5). The most intramuscular neural distribution was located on 1/5–3/5 of the muscle. The tendinous portion was observed in the 3/5–5/5. The result suggests the botulinum neurotoxin should be delivered in the 1/5–3/5 area of the teres minor muscle.
4.Intramuscular Neural Distribution of Adductor Pollicis Muscle Spasticity in Cadaver Model Regarding Botulinum Neurotoxin Treatment
Kyu-Ho YI ; Kang-Woo LEE ; Yousun HWANG ; Min Ho AN ; Hyo-Sang AHN ; Hyewon HU ; Ji-Hyun LEE ; Hyung-Jin LEE
Yonsei Medical Journal 2023;64(9):581-585
Purpose:
The adductor pollicis muscle is frequently targeted for botulinum neurotoxin injective treatment for spasticity. However, there are no injective guidelines for delivering injection to the muscle.
Materials and Methods:
A method known as the modified Sihler’s method was used to stain the adductor pollicis muscle in 16 specimens to reveal intramuscular neural distribution of the muscle.
Results:
The most intramuscular neural distribution was located on 1/5 to 3/5 of the muscle regarding midline of 3rd metacarpal bone (0) to the base of the 1st proximal phalanx (5/5). The nerve entry point was mostly located on 0 to 1/5 of the muscle.
Conclusion
The result suggests that botulinum neurotoxin should be delivered at the middle of second metacarpal bone via deep injection.