• Title/Summary/Keyword: Incision

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Subvalvular Septal Myectomy and Enlargement of the Narrow Aortic Root in Patients with Aortic Valve Replacement

  • Schulte, H.D.;Birchs, W;Horstkotte, D;Kim, Y.H.;Kerstholt, J;Preusse, C.J.;Winter, J
    • Journal of Chest Surgery
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    • v.22 no.2
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    • pp.220-224
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    • 1989
  • In candidates for aortic valve replacement [AVR]it is our primary intention to implant the largest possible vale prosthesis of at least 23 mm in diameter in patients with severe valvular aortic stenosis. However, in many patients there is an additional subvalvular asymmetric septal hypertrophy which in some cases may cause an postextrasystolic increase of the LV-aortic gradient. Another component of the aortic stenosis syndrome is a narrow valvular ring, or a combination of both. After complete removal of the diseased valve and decalcification the narrow aortic ring [< 23 mm] can be widened firstly by transaortic subvalvular septal myectomy- [TSM] thus unfolding the left ventricular outflow tract[LVOT]and secondly by extending the oblique aortic incision into the aortic valve ring or further down into the anterior leaflet of the mitral valve. The sub-and supra-valvular defect will be closed by patch enlargement of the aortic root [PEAR] using autologous pericardium. These techniques allow a considerable enlargement of the valvular ring of about 4 to 10 mm in circumference. In a retrospective study using a computerized program, 847 patients with AVR [1980-1984]were reviewed to evaluate the intraoperative hemodynamic results mainly concerning relief of the transvalvular gradient. In 626 patients AVR was performed, 151 patients had double valve replacement [AVR+MVR], and 70 patients had AVR plus additional surgical procedures. Concentrating on the AVR-group [n=626] there were 103 patients with TSM, 24 patients with PEAR and 20 patients with TSM+PEAR which demonstrated that in a total, of 147 patients of this groups [23.5%] an additional procedure was necessary. The Statistical evaluation of the intraoperative pressure measurements before and after AVR in relation to the size of the implanted prostheses indicated the lowest preoperative mean gradient in patients with AVR alone, the highest in patients who afforded TSM plus PEAR. However, after AVR the mean gradients in all three groups were very low [mean 5 to 10 mmHg]. These data indicate that in patients with a narrow aortic ring and additional considerable ASH, TSM and PEAR are suitable techniques to enlarge the aortic root to enable the implantation of an adequate aortic valve prosthesis. Long-term controls have shown that autologous pericardium is a qualified graft material for the ascending aorta.

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Esophageal Reconstruction for Hypopharyngeal Stricture After Severe Corrosive Injury (부식성 하인두 협착시 식도재건술)

  • 변정욱;구본일
    • Journal of Chest Surgery
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    • v.30 no.1
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    • pp.48-54
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    • 1997
  • Between 1987 and 1995, eleven patients with severe chronic corrosive stenosis of the hypopharynx and esophagus underwent surgical restoration of digestive continuity at Inje University Seoul Palk Hospital. There were 7 male and 4 female patients aged from 21 to 47 years (mean, 34 years). The caustic material was acid in 6 patients and alkali in 5 patients. The esophagus was reconstructed using the right colon In 9 and left colon in 2. The cervical approach and the side of proximal anastomosis depended on the status of the pyriform slnus of the hypopharynx. In the neck, J-formed incision was made along the sternocleidomastoid muscle. The sternohyoid and thyrohyoid muscles were divided transversely to expose the thyroid cartilage. Hypopharyngeal opening for proximal anastomosis was made by reverse triangular formed resection of the thyroid cartilage after elevation of perichondrium. Immediately after operation, dysphagia and aspiration into trachea were common, so training of swallowing was required. Feeding gastrostomy was usually maintained for 3 months until restoration of swallowing function was confirmed . There was graft necrosis in 3 patients, who were treated with jejunal free graft. Revisional procedures for stenosis of cervical anastomosis in B patients consisted of widening of pharyngocecostomy site in 2 and resection of adhesive band in one. Return of normal swallowing assuring normal nutrition was obtained in 10 of 11 cases.

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Surgical Treatment of Varicose Vein - TIPP(Transilluminated Powered Phlebectomy) - (정맥류 환자의 수술적 치료 -광투시 전도형 정맥적출요법-)

  • 이교준;김해균;정은규;강두영
    • Journal of Chest Surgery
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    • v.35 no.2
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    • pp.144-148
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    • 2002
  • The present study was done to determine the efficacy and safety of varicose vein removal using a minimally invasive, powered vein-extracting device with cutaneous transillumination and tumescent anesthesia techniques and then compared this to a retrospective group of conventional phlebectomy operations. There were 133 limbs in 104 patients(72 women, 32 men) treated with the use of the vein extractor aided by transcutaneous illumination. The hydrodissection was performed with Trivex™ Irrigated illuminator(Smith & Nephe $w^{ R}$) system using normal saline after the 2~3mm sized skin incision. Varicose clusters were extracted by the use of TriveTM esector(Smith & Nephe $w^{ R}$) system under transillumination. After the varisoce vein extraction, the operation area was compressed with surgical pad for bleeding control. The complication rate was 3.84% The mean number of incisions was 3.24 and mean operative time per limb was 65.9 minutes. The mean hospitalization was 1.86 days. The varicose vein extraction using transilluminated powered phlebectomy(TIPP) is a safe, efficacious and cosmetically satisfactory method. The procedure decreases the operating time and the number of incisions required to remove varicose clusters. Further evaluation and long term follow up will be necessary to determine the recurrence rate and long termcomplications.to determine the recurrence rate and long termcomplications.

The Effects of Short-term Exercise and Capsaicin Supplementation on Serum Lipids, Antioxidants and Akt Contents in STZ-induced Diabetic Rats (Streptozotocin유도 당뇨쥐의 단기간 capsaicin 섭취와 운동이 혈중 지질, 항산화 효소 및 Akt량에 미치는 영향)

  • Seo, Dae-Yun;Ko, Jeong-Rim;Baek, Yeong-Ho
    • Journal of Life Science
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    • v.18 no.12
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    • pp.1739-1744
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    • 2008
  • The purpose of this study was investigate the effects of short-term exercise and capsaicin supplementation on serum lipids, antioxidants and Akt contents in diabetic rats whose symptom was induced through the use of 50 mg/kg streptozotocin, 31 white rats were experimented. Rats in one exercise group and another exercise-capsaicin supplementation group exercised on a treadmill maintained by a 15-min run at $0^{\circ}$ inclination five times for a week during two weeks one week after the diabetes was induced. 10 mg of capsaicin per kilogram of weight was orally administered to rats in the capsaicin supplementation group after the diabetes was induced. The serum lipids were analyzed through the use of blood obtained from the incision of the abdomen, and antioxidants and Akt contents were analyzed through the use of livers to reach following conclusions. As for the serum lipids, TG significantly decreased in group DCE and HDL-C was higher than in other groups. ROS significantly decreased in all groups except for group D. CAT significantly increased in group DC, SOD was significantly high in groups DE and GSH was significantly high in all groups except for D. Akt contents significantly increased in group DC and p-Akt in group DE. As a result of this study, it has been found that short-term exercise and the capsaicin supplementation had a significantly effect on the serum lipids, antioxidants and Akt contents.

Usefulness of Atelo-collgen sponge (Teruplug$^{(R)}$) for Treatment of Mandibular Angle Fractures with Third Molar Extraction (하악각 골절에서 제 3 대구치 발치 후 아테로-콜라겐 스펀지의 유용성)

  • Oh, Hwa-Young;Choi, Hwan-Jun;Kwon, Jun-Seong;Lee, Hyung-Gyo;Kim, Yong-Bae
    • Archives of Plastic Surgery
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    • v.38 no.2
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    • pp.155-160
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    • 2011
  • Purpose: Fibrillar collagens like type I collagen, are the major constituent of the extracellular matrix and structural protein of bone. Also, it can be a scaffold for osteoblast migration. The purpose of this study is to estimate the effects of absorbable atelo-collagen sponge (Teruplug$^{(R)}$, Terumo biomaterials Co., Tokyo, Japan) insertion in tooth extraction sites on periodontal healing of the second molar, healing of the fractured mandibular bone and new bone formation of third molar socket after the extraction of the impacted third molar with mandibular angle fracture. Methods: In our study of six cases of mandibular angle fractures, all of them underwent the extraction of the third molar tooth & absorbable atelo-collagen sponge insertion in tooth extraction site. Three of them had a intraoral infection & oral opening to fracture site, two of the six had dental caries, and only one had reduction problem due to third molar position. Six consecutive patients with noncomminuted fractures of the mandibular angle were treated by open reduction and internal fixation using one noncompression miniplates and screws placed through a transoral incision. Results: All of the patients have showed good postoperative functions and have not experienced complications requiring second surgical intervention. There was well healing of the mandibular bone and the most new bone formation of third molar socket after the extraction of the impacted third molar with mandibular angle fracture. Conclusion: The results of this study suggest that absorbable atelo-collagen sponge is relatively favorable bone void filler with prevention of tissue collapse, food packing, and enhance periodontal healing. Thus, the use of atelo-collagen sponge and one noncompression miniplate seems to be relatively easy, safe, and effective for the treatment of fractures of the mandibular angle and third molar extraction.

Atrial Septal Defect Closure: Comparison of Vertical Axillary Minithoracotomy and Median Sternotomy

  • Poyrazoglu, Huseyin Hakan;Avsar, Mustafa Kemal;Demir, Serafettin;Karakaya, Zeynep;Guler, Tayfun;Tor, Funda
    • Journal of Chest Surgery
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    • v.46 no.5
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    • pp.340-345
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    • 2013
  • Background: This study aims to evaluate whether or not the method of right vertical axillary minithoracotomy (RVAM) is preferable to and as reliable as conventional sternotomy surgery, and also assesses its cosmetic results. Methods: Thirty-three patients (7 males, 26 females) with atrial septal defect were admitted to the Cardiovascular Surgery Clinic of Cukurova University from December 2005 until January 2010. The patients' ages ranged from 3 to 22. Patients who underwent vertical axillary minithracotomy were assigned to group I, and those undergoing conventional sternotomy, to group II. Group I and group II were compared with regard to the preoperative, perioperative and postoperative variables. Group I included 12 females and 4 males with an average age of $16.5{\pm}9.7$. Group II comprised 14 female and 3 male patients with an average age of $18.5{\pm}9.8$ showing similar features and pathologies. The cases were in Class I-II according to the New York Heart Association (NYHA) Classification, and patients with other cardiac and systemic problems were not included in the study. The ratio of the systemic blood flow to the pulmonary blood flow (Qp/Qs) was $1.8{\pm}0.2$. The average pulmonary artery pressure was $35{\pm}10$ mmHg. Following the diagnosis, performing elective surgery was planned. Results: No significant difference was detected in the average time of the patients' extraportal circulation, cross-clamp and surgery (p>0.05). In the early postoperative period of the cases, the duration of mechanical ventilator support, the drainage volume in the first 24 hours, and the hospitalization time in the intensive care unit were similar (p>0.05). Postoperative pains were evaluated together with narcotic analgesics taken intravenously or orally. While 7 cases (43.7%) in group I needed postoperative analgesics, 12 cases (70.6%) in group II needed them. No mortality or major morbidity has occurred in the patients. The incision style and sizes in all of the patients undergoing RVAM were preserved as they were at the beginning. Furthermore, the patients of group I were mobilized more quickly than the patients of group II. The patients of group I were quite pleased with the psychological and cosmetic results. No residual defects have been found in the early postoperative period and after the end of the follow-up periods. All of the patients achieved functional capacity per NYHA. No deformation of breast growth has been detected during 18 months of follow-up for the group I patients, who underwent RVAM. Conclusion: To conclude, the repair of atrial septal defect by RVAM, apart from the limited working zone for the surgeon in these pathologies as compared to sternotomymay be considered in terms of the outcomes, and early and late complications. And this has accounted for less need of analgesics and better cosmetic results in recent years.

Effects of DMTU, SOD and Ischemic Preconditioning on the Ultrastructural Changes of the Rectus Femoris Muscles in Rats after Ischemia and Reperfusion (SOD, DMTU및 허혈양상화 처치가 허혈 및 재관류에 의한 흰쥐 넙다리곧은근의 미세구조 변화에 미치는 영향)

  • Paik, Doo-Jin;Lim, Jae-Hyun;Chung, Ho-Sam
    • Applied Microscopy
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    • v.27 no.3
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    • pp.333-346
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    • 1997
  • The ischemia and reperfusion injury of the skeletal muscles is caused by generation of reactive oxygen during ischemia and reperfusion. It is well known that over 4 hours of ischemia injures the skeletal muscles irreversibly. The author has demonstrated the effects of SOD (superoxide dismutase), DMTU (dimethyl thiourea) and ischemic preconditioning on ultrastructural changes of the muscle fibers in the rectus femoris muscles after 4 hours of ischemia and 1 day and 3 days of reperfusion. A total of 72 healthy Sprague-Dawley rats weighing from 200 gm to 250 gm were used as experimental animals. Under urethane(1.15 g/kg, IP, 2 times) anesthesia, lower abdominal incision was done and the left common iliac artery was occluded by using vascular clamp for 4 hours. The left rectus femoris muscles were obtained at 1 and 3 days after the removal of vascular clamp. The SOD (15,000 unit/kg) or DMTU (500 mg/kg) were administered intraperitoneally at 1 hour before induction of ischemia. The ischemic preconditioned group underwent three episodes of 5 minutes occlusion and 5 minutes reperfusion followed by 4 hours of ischemia and 1 day and 3 days of reperfusion. The specimens were sliced into $1mm^3$ and prepared by routine methods for electron microscopic observation. All specimens were stained with uranyl acetate and lead citrate and then observed with Hitachi-600 transmission electron microscope. The results were as follows: 1. SOD or DMTU alone did not affect the ultrastructure of muscle fibers in the rectus femoris muscles. The electron density of mitochondrial matrix was decreased by ischemic preconditioning. 2. Dilated cisternae of sarcoplasmic reticulum, triad, mitochondria and the loss of myofilament in the sarcomere were observed in the 4 hours ischemia and 1 day reperfused rectus femoris muscles. Markedly changed sarcoplasmic reticulum, triad, disordered or loss of myofilament, indistinct A-band and I-band, and irregular electron lucent M -line and Z-line are seen in the 4 hours ischemia and 3 days reperfused rectus femoris muscles. 3. SOD reduced the changes of organelles in the muscle fibers of the 4 hours ischemia and 1 day reperfused rectus femoris muscles of the rats, but SOD did not affect the changes of muscle fibers in the 4 hours ischemia and 3 days reperfused muscles. On the other hand, DMTU markedly attenuated considerably the ultrastructural change of the 4 hours ischemia and 1 day or 3 days reperfused rectus femoris muscles. 4. By the ischemic preconditioning, the change was attenuated remarkably in the 4 hours ischemia and 1 day reperfused rectus femoris muscles. As the ischemic reperfused changes of muscle fibers were regenerated or recovered by ischemic preconditioning, the ultrastructures of them were similar to those of normal control in the 4 hours ischemia and 3 days reperfused rectus formoris muscles. Consequently, it is suggested that DMTU is stronger inhibitor to ischemic reperfused change than SOD. The ischemia and reperfusion-induced muscular damage is remarkably inhibited by ischemic preconditioning.

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A Study on Wound Care Knowledge and Concerns of Patients at Discharge (퇴원하는 환자의 상처관리에 대한 지식과 염려에 관한 연구)

  • Han, Il-Kyoung;Lee, Myung-Seon;Kim, Jung-A;Ha, Won-Choon;Kim, Myung-Hee;Hwang, Sun-Kyung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.11
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    • pp.3434-3443
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    • 2009
  • This study was done to examine patients' wound care knowledge and concerns prior to discharge from a tertiary hospital. The participants in this descriptive survey were 112 patients having wounds. During interview, a structured self-administered questionnaire was filled out. The participants were 71 males and 41 females. Wound types were surgical incision (52.7%), percutaneous wound (26.8%), pressure ulcer (9.8%) and diabetic foot and arterial ulcers (5.4%). Their wound care knowledge was 52.0% of correct answer and the mean of concerns (range 1-7) was 2.79. There was no significant correlation between their knowledge and concerns of wound care. The factors influence on wound care concerns were fear of wound care, wound pain, length of hospital stays, and perceived health condition. This findings showed that discharge patients with a wound had some incorrect knowledge and various concerns about wound care. They may help to direct patient teaching in discharge plan.

THE CHANGE OF VITAL SIGNS IN STEPS WHEN IT IS EXTRACTED A THIRD MOLOR OF MANDIBLE (제3대구치 발치시 단계별 생체징후(vital sign)의 변화에 대한 연구)

  • Oh, Hae-Soo;Kang, Hee-In;Choi, Bin;Park, Jun-Woo;Sin, Sung-Soo;Choi, Je-Won;Lee, Sun-Keun;Kim, Mi-Ja
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.32 no.2
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    • pp.142-150
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    • 2006
  • PURPOSE : The 3rd molar extraction of mandible is common in out-patient office of oral and maxillofacial surgery. And it is dynamic minor operation with changes of vital signs. most of patients are already sensitive about their dental treatment. The changes of emotion are reached to the highest level when patients is laid down to be treated on unit chair. It can be induced to undesirable accidents as to this fear. The undesirable complications are nausea, vomiting, hyperventilation, dyspnea, syncope, shock and so on. The severe changes of vital signs may influence their behavior and make serious medical malpractice or suit such as fracture of dental instruments and injury of proximal area. METHOD AND PATIENTS : A total of 99 selected normal patients were reviewed. Among this, 70 patients(43 men, 27 women with statistical significance) were included in this study. Each steps(pre-anesthesis, 5 minutes after anesthesis, just after mucogingival incision, just after tooth section, just after suture and gauze biting) were investigated for a change of a vital signs. It is analyzed to 2 categories,"Means" and "Tendency". The "Means" is the amount of vital signs changed in comparison with pre-step during operation. That means is the amount of vital changes by each step operation. Next, " Tendency" is changes of vital signs in comparison with step1 during operation. RESULT : This is the changing tendency of vital signs with time. That is active effect of fear and pain. Thus this "Means" and "Tendency" will present a sudden changes of vital signs and it can lead to more safe treatment. CONCLUSION : Thus, the purpose of this study is, through careful operation in each step, to less on patients' complication and increase trust between patient and OMFS. This study is a first article shown with the amount of "Means" and "Tendency" in vital signs, when a third molar of mandible is extracted. This study will be base study of patients with general diseases, because it selected only patients without general diseases.

A simple approach to preserve keratinized mucosa around implants using a pre-fabricated implant-retained stent: a report of two cases

  • Park, Jung-Chul;Yang, Ki-Bin;Choi, You-Na;Kim, Yong-Tae;Jung, Ui-Won;Kim, Chang-Sung;Cho, Kyoo-Sung;Chai, Jung-Kiu;Kim, Chong-Kwan;Choi, Seong-Ho
    • Journal of Periodontal and Implant Science
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    • v.40 no.4
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    • pp.194-200
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    • 2010
  • Purpose: There is no consensus regarding the relationship between the width of keratinized mucosa and the health of periimplant tissues, but clinicians prefer to provide enough keratinized mucosa around dental implants for long-term implant maintenance. An apically positioned flap during second stage implant surgery is the chosen method of widening the keratinized zone in simple procedures. However, the routine suture techniques used with this method tend to apply tension over the provisional abutments and decrease pre-existing keratinized mucosa. To overcome this shortcoming, a pre-fabricated implant-retained stent was designed to apply vertical pressure on the labial flap and stabilize it in a bucco-apical direction to create a wide keratinized mucous zone. Methods: During second stage implant surgery, an apically displaced, partial thickness flap with a lingualized incision was retracted. A pre-fabricated stent was clipped over the abutments after connecting to the provisional abutment. Vertical pressure was applied to displace the labial flap. No suture was required and the stent was removed after 10 days. Results: A clinically relevant amount of keratinized mucosa was achieved around the dental implants. Buccally displaced keratinized mucosa was firmly attached to the underlying periosteum. A slight shrinkage of the keratinized zone was noted after the healing period in one patient, but no discomfort during oral hygiene was reported. Clinically healthy gingiva with enough keratinized mucosa was achieved in both patients. Conclusions: The proposed technique is a simple and time-effective technique for preserving and providing keratinized tissue around dental implants.