• Title/Summary/Keyword: Iatrogenic

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Dietary Zinc Effects on Growth Performance and Immune Response of Endotoxemic Growing Pigs

  • Roberts, E.S.;van Heugten, E.;Lloyd, K.;Almond, G.W.;Spears, J.W.
    • Asian-Australasian Journal of Animal Sciences
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    • v.15 no.10
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    • pp.1496-1501
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    • 2002
  • A $2{\times}3$ factorial arrangement of treatments was used in a completely randomized design to determine the effects of dietary Zn on performance and immune response of acutely endotoxemic growing pigs (n=96, mean BW=24.9 kg). Factors included 1) intramuscular injection of $10{\mu}g/kg$ BW of Escherichia coli lipopolysaccharide (LPS) or control and 2) supplemental Zn at 10, 50, or 150 ppm. Diets were fed beginning after weaning (initial body weight=7.6 kg) in the nursery and continued for 16 d into the grower phase. The basal corn-soybean meal grower diet contained 1% lysine and 34.3 ppm Zn. Pigs were acclimated for 12 d in the growerfinishing facility before LPS treatment on d 13. Gain, feed intake, and feed efficiency were unaffected by dietary Zn. Feed intake decreased (p<0.10) and gain/feed was greater (p<0.10) from d 13 to d 16 for pigs injected with LPS. Serum Zn and alkaline phosphatase activity increased (p<0.05) with increasing Zn levels. The febrile response to LPS peaked at 6 h post exposure and pigs were afebrile within 12 h. Rectal temperature was greater (p<0.05) in pigs receiving 50 and 150 ppm Zn than in pigs supplemented with 10 ppm Zn. In vivo cellular immune response, measured on d 13 by skin thickness response to phytohemagglutinin (PHA), was greater after 6 h (p<0.05) in pigs fed 10 ppm Zn and exposed to LPS compared to all other treatments, but was not affected at 12, 24 or 48 h. Zinc did not affect mitogen induced lymphocyte proliferation. Zinc supplemented at 50 or 150 ppm resulted in an enhanced febrile response in pigs subjected to iatrogenic endotoxemia, but did not affect pig performance or immune response measurements.

Compartment syndrome due to extravasation of peripheral parenteral nutrition: extravasation injury of parenteral nutrition

  • Park, Huee Jin;Kim, Kyung Hoon;Lee, Hyuk Jin;Jeong, Eui Cheol;Kim, Kee Won;Suh, Dong In
    • Clinical and Experimental Pediatrics
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    • v.58 no.11
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    • pp.454-458
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    • 2015
  • Compartment syndrome is a rare but devastating condition that can result in permanent neuromuscular or soft tissue injuries. Extravasation injuries, among the iatrogenic causes of compartment syndrome, occur under a wide variety of circumstances in the inpatient setting. Total parenteral nutrition via a peripheral route is an effective alternative for the management of critically ill children who do not obtain adequate nutrition via the oral route. However, there is an inherent risk of extravasation, which can cause compartment syndrome, especially when detected at a later stage. Herein, we report a rare case of compartment syndrome and skin necrosis due to extravasation, requiring emergency fasciotomy and skin graft in a 7-month-old boy who was treated with peripheral parenteral nutrition via a pressurized infusion pump. Although we cannot estimate the exact time at which extravasation occurred, the extent and degree of the wound suggest that the ischemic insult was prolonged, lasting for several hours. Pediatric clinicians and medical teams should carefully examine the site of insertion of the intravenous catheter, especially in patients receiving parenteral nutrition via a peripheral intravenous catheter with a pressurized infusion pump.

Penile Reconstruction Using a Radial Forearm Free Flap with Modified Biemer's Method (변형 Biemer 방법에 의한 요골부위 전박 유리피판을 이용한 음경재건)

  • Kim, Seong-Deok;Ha, Bom-Joon;Mun, Goo-Hyun;Hyon, Won-Sok;Bang, Sa-Ik;Oh, Kap-Sung
    • Archives of Reconstructive Microsurgery
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    • v.11 no.2
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    • pp.146-152
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    • 2002
  • As the defects of the penis caused by trauma, surgical amputation, or congenital abnormality give the patients both psychological trauma and functional impairment, reconstruction of the penis is mandatory. Radial forearm free flap is reliable one-stage procedure, which can reconstruct both the phallus and the urethra. Chang and Whang's adaptation of the "tube-in-a-tube" concept and its incorporation into a free flap design represented a major advance in microsurgical phallic construction. Biemer described a modification of the radial forearm flap design in which the neourethra was centered over the radial artery, but the phallic shaft was separated into two paraurethral swatches. The authors have performed one-stage penile reconstruction in two patients since 1998, using a radial forearm free flap. Our present design incorporates the original Biemer triple skin island and includes a fourth distal island for neoglans. One case was the amputation of the penis from felonious assault and the other case was the iatrogenic penile amputation from repetitive urologic surgery for congenital hypospadia. All patients showed aesthetically acceptable results and good tactile sensory recovery. Severe complications such as necrosis, fistula, or urethral stricture were not occurred. Biemer's method modified by the authors is reliable one-stage penile reconstruction providing good aesthetic and functional results.

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Delayed Primary Repair of Esophageal Rupture (식도천공 후 만기 일차 봉합술의 성적)

  • 김길동;정경영;김창수;박한기
    • Journal of Chest Surgery
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    • v.31 no.1
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    • pp.46-51
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    • 1998
  • Treatment of esophageal perforation when diagnosed late remains controversial. Ten consecutive patients since 1990 were treated late(later than 24 hours) for esophageal perforation with primary repair. Four perforations were iatrogenic, 3 were spontaneous, 2 were foreign body aspiraton and 1 was trauma. The interval from perforation to operation was 116 hours in mean and 48 hours in median value. The principles of repair included (1) a local esophagomyotomy proximal and distal to the tear to expose the mucosal defect and intact mucosa beyond, (2) debridement of the mucosal defect and closure, (3) reapproximation of the muscle, and (4) adequate drainage. The repair was buttressed with parietal pleura or pericardial fat in 9 patients. Associated distal obstruction was treated with dilation and esophagomyotomy intraoperatively. There was one mortality and cause of death was massive gastric bleeding due to gastric ulcer on 33rd day after operation. Five patients had leak at the site of repair and these cases were treated completely with conservative treatment except a mortality case. In conclusion, in the absence of malignant or irreversible distal obstruction, meticulous repair of perforated esophagus and adequate drainage are preferred approach, regardless of the duration from the injury to the operation.

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Re-Expansion Pulmonary Edema Associated with Resection of Ruptured Hlediastinal Thymic Cyst -A Case Report (파열된 종격동 흉선낭종의 절제술후 동반된 재팽창성 폐부종 -1례 보고-)

  • Jo, Deok-Geun;Lee, Jong-Ho;Gwak, Mun-Seop
    • Journal of Chest Surgery
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    • v.30 no.11
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    • pp.1149-1153
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    • 1997
  • Unilateral reexpansion pulmonary edema(RPE) is generally considered a rare complication occurring when a chronically atelectatic lung is rapidly reexpanded by tube thoracostomy or thoracentesis. It can also take place when the lung collapse is of short duration or when the lung is reexpanded without intrapleural sucti n. We experienced a case of RPE following surgical resection in mediastinal thymic cyst A 26 year old female patient suffered from long-standing atelectasis of the right lung due to a huge mediastinal cyst that was misrecognized as tuberculous pleural effusion. Empyema developed after iatrogenic rupture of mediastinal cyst by pig-tailed tube thoracostomy. We successfally managed the ruptured mediastinal thymic cyst, empyema and postoperatively developed RPE following reexpansion of the collapsed lung. The patient was treated with drugs and mechanical ventilation with positive end-expiratory pressure for RPE. The remainder of her hospital course was uneventful.

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A Way to Avoid Muscular Fibrosis in the First Dorsal Interosseous Muscle after Acupuncture Injection Therapy

  • Wong, Yiu Ming
    • Journal of Pharmacopuncture
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    • v.20 no.3
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    • pp.227-229
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    • 2017
  • Fibrosis of skeletal muscle following acupuncture is an iatrogenic disorder. The present case illustrates a patient with a unilateral fibrotic formation on a thumb muscle after acupuncture injection therapy with red sage. The patient in the present case was a counter-terrorism police officer with right-handedness; he noted a palpable nodule three months after injection therapy at his left first dorsal interosseous in which the acupuncture point LI4 (He Gu) is located. He also found a reduction in the strength of his left pinch grip that noticeably affected his left handgun marksmanship. However, being ambidextrous in single-hand pistol shooting is an essential requirement for counter-terrorism police officers. Based on the patient's medical history and claims, no underlying disease or trauma was found to be associated with his current complaint. During physical examination, a fibrotic formation in his left first dorsal interosseous muscle was visualized by using diagnostic ultrasound; also, as confirmed with dynamometry, the strength of his left pinch grip was significantly lower than that of the right counterpart. Because acupuncture injection therapy has three components, antiseptic practices, the mechanical action of syringe insertion, and the pharmacological effect of the sterile herb extract, any one of the components may have contributed to the present adverse event. The first dorsal interosseous muscle is small in dimension and rather vascular; thus, it is not an ideal site for intramuscular injection. When a clinician needs to treat a patient by performing acupuncture at the LI4 acupoint and injecting a herbal extract simultaneously, the clinician should only mechanically stimulate the LI4 acupoint while injecting the herbal medicine into the LI14 (Bi Noe) acupoint on the same meridian, the LI14 acupoint being located in the distal portion of the deltoid muscle and being fairly close to the universally agreed upon site on the upper arm for safe administration of an injection.

Iatrogenic epidermoid cyst in the parotid gland: A case report (이하선에서 발견된 유표피낭: 증례 보고)

  • Lee, Choong-Sang;Kim, Hyoung-Keun;Lim, Jae-Hyung;Jeon, Kug-Jin;Huh, Jong-Ki
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.37 no.3
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    • pp.237-240
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    • 2011
  • Epidermoid cysts presents as a nodular and fluctuant subcutaneous lesion beneath the skin and are most common in acne-prone areas of the head, neck and back. This cyst often arises after localized inflammation of the hair follicle and occasionally after the implantation of epithelium following trauma and surgery including a biopsy procedure. It is often associated with Gardner syndrome, particularly before puberty. The lesion is normally treated by a surgical excision or enucleation, and recurrence is uncommon. A 27 year old woman complained of a swelling of the left parotid gland when she visited our clinic. A cystic lesion was found in the left parotid gland from the high signal intensity on the MR images. Ultrasonography showed that the cystic lesion was heterogeneous echogenic. Six months earlier, botulinum toxin was injected in her left masseter muscles six months earlier and progressive swelling of the left parotid area was noticed four months after treatment. The lesion was surgically removed. It was encapsulated by a thin wall and filled mainly with keratin. The final diagnosis was an epidermoid cyst.

Prediction and Prevention of Ovarian Hyperstimulation Syndrome (난소과자극증후군의 예측과 예방)

  • Kim, Hye-Ok;Kang, Inn-Soo
    • Clinical and Experimental Reproductive Medicine
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    • v.37 no.4
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    • pp.293-305
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    • 2010
  • Ovarian hyperstimulation syndrome (OHSS) is a life-threatening iatrogenic complication of ovulation induction. Before ovarian stimulation, identification of patients vulnerable to developing OHSS is necessary. And ovarian stimulation should be started with low doses of gonadotropin or GnRH antagonist protocol. During monitoring of ovarian stimulation with risk of OHSS, coasting, low doses hCG and GnRH agonist for triggering ovulation are considered. If severe OHSS is predicted, cycle cancellation and cryopreservation of all embryos should be considered to reduce late-onset OHSS and morbidity. And metformin and dopamine agonist for reducing OHSS are being proposed as a prophylactic treatment for OHSS.

식도 천공의 외과적 치료

  • 이재익
    • Proceedings of the KOR-BRONCHOESO Conference
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    • 2003.09a
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    • pp.108-108
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    • 2003
  • 식도 천공의 치료는 최근 치료법의 발전에도 불구하고 여전히 난해한 문제이다. 이 환자들은 천공의 원인이나 위치, 심한 정도가 다양한 이질적인 군이며, 반수 이상이 이미 식도에 기존의 질환을 가지고 있어 문제를 더욱 복잡하게 한다. 따라서 절대적이고 획일적인 치료방법은 아직 확립되어 있지 않으며 많은 다양한 방법들이 제시되고 있다. 2002년 11월부터 2003년 7월까지 총 8명의 환자가 식도 천공으로 동아대학교병원 흥부외과에서 치료를 받았으며, 원인별로는 의인성(iatrogenic) 손상이 6례, 자발성(spontaneous) 손상이 2례였고 부위별로는 경부가 3례, 흥부가 5례였다. 의인성 손상에는 내시경 검사중 정상 경부 식도에 발생한 1례, 부식성 식도협착 환자의 풍선 확장술과 스텐트 삽입시 흉부 식도에 발생한 경우가 각각 1례씩, 외상성 경추손상의 수술시 정상 경부 식도에 발생한 경우가 2례, 선천성 식도폐쇄증(esophageal atresia)의 술후 문합부 누출이 생긴 경우가 1례 있었으며, 자발성 손상에는 하부식도에 발생한 기압성(barogenic) 손상 1례와 상흉부 식도암 천공 1례가 있었다. 경부 식도 천공 3례는 모두 경부 배액(drainage)과 식이용 장루술(feeding jejunostomy)을 시행하였고, 부식성 식도협착이 있던 환자 2례는 식도절제술과 흉부내 식도-위 문합을 시행하였으며, Boerhaave씨 증후군 환자는 1차 봉합술, 술후 문합부 유출이 있었던 환자와 식도암 천공이 있었던 환자는 식도절제 및 경부 식도루(esophagostomy), 배액용 위루(gastrostomy), 식이용 장루술을 시행하였다. 모든 환자는 패혈증 등의 심각한 합병증으로의 진행 없이 회복되었다. 현재 위장관의 연속성이 유지 혹은 복원된 환자는 경구식이 중이며 그 외의 환자들은 장루를 통해 영양을 공급하며 식도재건술을 기다리고 있다. 식도 천공은 최근 항생제의 사용, 과영양요법(hyperalimentation), 술후 환자관리의 개선 등으로 치료에 많은 발전이 있었으나, 치료 방침에 있어서는 여전히 논란이 있으며 높은 사망률을 보이는 난제로 남아있다. 비록 일반적인 지침이 도움이 되겠지만, 치료 방침은 환자 개개인의 상황에 따라 적절하게 선택해야 하며, 임상경과에 따라 언제라도 방침을 변경할 수 있는 유연함이 필요하리라 생각한다.

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Arthroscopic Repair of Anterior Root Injury in Lateral Meniscus Using Suture Anchor - Case Report and Technical Note - (Suture anchor를 이용한 외측 반월판 연골 전방 뿌리 파열의 관절경적 치료 -증례 및 술기 보고-)

  • Kim, Do-Young;Yoo, Yon-Sik;Lee, Sang-Soo;Jeong, Un-Seob;Seo, Eun-Min;Park, Seung-Jae
    • Journal of Korean Orthopaedic Sports Medicine
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    • v.10 no.1
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    • pp.41-45
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    • 2011
  • As awareness of root tear of meniscus have been increased, it became necessary to have an intensive repair. Posterior horn tear, especially for a lot of repair methods and the results have been reported recently. The report of the anterior root tear has yet to be found. We recently encountered a patient with an iatrogenic meniscal subluxation caused by past experienced partial menisectomy for discoid meniscus. Thus, we repots the technique and clinical results of arthroscopic repair of subluxated lateral meniscus anterior root tear using suture anchor.

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