1.Life-Saving Resection of a Huge Intrapericardial Teratoma in a Newborn
Tadao Kugai ; Yukihiro Takemura ; Nobuhiro Nagata
Japanese Journal of Cardiovascular Surgery 2004;33(6):407-409
Intrapericardial teratomas are unusual tumors that often cause cardiorespiratory distress and might be lethal in the newborn. We described a case of neonate who was successfully treated by emergency surgery. A 5-day-old female infant was referred for further evaluation of a fever and progressive cardiorespiratory distress. Chest X-ray showed a widened central silhouette. Echocardiogram and chest CT scanning demonstrated a 59×40mm mediastinal mass and the mass effect or massive pericardial effusion cause cardiac tamponade. After sternotomy, the tumor was found to have arisen from the anterior surface of the aortic root and 30ml of serosanguinous fluid were aspirated. The tumor was completely removed without any difficulty with cardiopulmonary bypass standby. The postoperative course was uneventful. Histologically, this tumor appeared to be a mature teratoma. The surgical resection was lifesaving.
2.Cardiac Operations in Two Patients Aged 90 or Over
Tadao Kugai ; Hiroshi Munakata ; Nobuhiro Nagata
Japanese Journal of Cardiovascular Surgery 2005;34(3):202-204
Cardiac surgery in patients aged 90 years or older is not common. We report 2 successful cases in nonagenarians. A 90-year-old man underwent the Bentall operation for aortic root aneurysm with moderate aortic valve regurgitation. A 91-year-old man underwent aortic valve replacement and single CABG (LITA to LCX) for severe aortic valve stenosis with single coronary artery disease. Their postoperative courses were uneventful. We emphasize that cardiac surgery in nonagenarians should not be withheld on the basis of age alone, but should be based on careful assessments of the relative medical risks and benefits, as well as the wishes of the patient and family.
3.Prosthetic Valve Replacement Using Warm Heart Surgery for Mitral Valve Regurgitation in Childhood.
Tetsuro Takayama ; Takeshi Miyairi ; Kenji Koseni ; Nobuhiro Nagata
Japanese Journal of Cardiovascular Surgery 1995;24(2):108-111
In 4 children (2.4-10.9 y.o) with mitral valve regurgitation, prosthetic valve replacement was done using warm heart surgery. Three of them had previously received 1-3 times valve repair operations and the other one was accompanied by endocarditis. The condition of 3 children were in NYHA grade 4 and received dopamine preoperatively. At the esophageal temperature of 34 degree, aorta was cross clamped for 79-216min. with continuous coronary perfusion of 3ml/kg/min, however, no child showed postoperative low output syndrome, and the maximum use of dopamine was 2-6μg/kg/min and the CK-MB at 1POD was within the normal range in all cases. Warm heart surgery showed better myocardial protection for pediatric mitral valve replacement.
4.A Case of Venous Aneurysm of the Superior Vena Cava Following Systemic-to-Pulmonary Artery Shunt.
Hiroshi Ohuchi ; Hideo Okabe ; Nobuhiro Nagata ; Yukihiro Kaneko
Japanese Journal of Cardiovascular Surgery 1997;26(3):197-199
A 13-year-old girl with asplenia syndrome who previously had undergone left subclavian-to-pulmonary artery shunt after removal of a cavopulmonary shunt with interposition of a short segment of the left superior vena cava was admitted for congestive heart failure. Angiography revealed aneurysmal dilatation of the left superior vena cava. Percutaneous coil embolization of the shunt was successfully performed and the venous aneurysm was diminished. Interposition of a venous component in systemic-to-pulmonary artery shunt should be avoided even after removing a cavopulmonary shunt.
5.Prospective Clinical Trial of Intravitreal Aflibercept Treat-andextend Regimen for Diabetic Macular Edema: 1-Year Outcomes
Hiroki MIENO ; Kazuhito YONEDA ; Nobuhiro TERAO ; Kengo YOSHII ; Kentaro KOJIMA ; Kenji NAGATA ; Chie SOTOZONO
Korean Journal of Ophthalmology 2020;34(4):290-296
Purpose:
To investigate the efficacy of aflibercept for the treatment of diabetic macular edema via a treat-and-extend regimen.
Methods:
This prospective, single-center, open-label, interventional study involved 30 patients with a best-corrected visual acuity (BCVA) ≤0.6 and a central retinal thickness (CRT) ≥300 μm. The enrolled eyes each received a monthly intravitreal aflibercept injection until the CRT decreased below 300 μm, upon which the administration interval was extended for 1 month until the CRT once again increased to ≥300 μm. Main outcome measures were median BCVA and CRT at 6 and 12 months after initiation of treatment via last observation carried forward analysis, the median number of injections over the 12 months, and the effects on the diabetic retinopathy severity scale (DRSS) score of the patients who completed the 12-month follow-up period.
Results:
Of the 30 enrolled patients, 29 and 25 respectively completed the 6- and 12-month follow-up examinations. From baseline to 6 and 12 months after treatment initiation, the median BCVA (logarithm of the minimum angle of resolution) significantly improved from 0.52 to 0.30 and 0.35, respectively, and the median CRT significantly decreased from 439.5 to 268.5 and 249.0 μm, respectively. The median number of injections over the 12-month follow-up period was 6.0. Compared to baseline, the DRSS score at 12 months was improved by 2 steps in 16% of patients; in no cases did the DRSS score worsen or improve by three steps or more.
Conclusions
When administered in a treat-and-extend regimen, aflibercept is an effective treatment option for diabetic macular edema.