1.Right Ventricular Outflow Obstruction due to Huge Un-ruptured Aneurysm of the Sinus of Valsalva in Two Elderly Patients
Tomoki Choh ; Shinichi Suzuki ; Tomoyuki Minami ; Yukihisa Isomatsu ; Munetaka Masuda
Japanese Journal of Cardiovascular Surgery 2010;39(3):114-117
A sinus of Valsalva aneurysm is a comparatively rare disease, and it has almost no symptoms unless this is rupture, whereas aortic insufficiency, myocardial ischemia and heart failure might be associated with un-ruptured aneurysm of the sinus of Valsalva. We encountered 2 elderly patients (71 years old and 83 years old) with huge un-ruptured aneurysm of the sinus of Valsalva which causes right ventricular outflow tract obstruction. The orifice of the aneurysm of the sinus of Valsalva was closed using ePTFE patches in the both cases. Plication of aneurysm was attempted in both cases, but it failed in case 1 due to undetermined border of the aneurysm on the right side of the heart. Case 2 was required concomitant aortic valve replacement with a bioprosthesis due to associated aortic regurgitation. The repair of un-ruptured aneurysm of the sinus of Valsalva associated with right ventricular outflow tract obstruction can be performed safely and effectively even in elderly patients.
2.Left Ventricular Outflow Pseudoaneurysm after Aortic Valve Replacement for Active Infective Endocarditis
Tomoki Choh ; Shinichi Suzuki ; Tomoyuki Minami ; Hideyuki Iwaki ; Yukihisa Isomatsu ; Munetaka Masuda
Japanese Journal of Cardiovascular Surgery 2009;38(6):394-397
A 56-year-old man, who underwent aortic valve replacement with a stentless artificial valve for aortic valve endocarditis at age 52, found to have left ventricular outflow pseudoaneurysm by transthorasic echocardiography, transesophageal echocardiography and enhanced computed tomography. We repaired the pseudoaneurysm, combined with valve re-replacement. Left ventricular outflow pseudoaneurysm is a rare disease, and is often associated with active endocarditis. Transesophageal echocardiography and CT scan are useful to diagnose this disease, especially to rule out annular abscess. Operative indication is recommended soon after the diagnosis was made to prevent rupture of pseudoaneurysm, or development of either mitral regurgitation or coronary ischemia due to compression from the pseudoaneurysm. Combined aortic valve replacement, with or without mitral valve replacement is necessary to repair the pseudoaneurysm.
3.Two Cases of Left Ventricular Outflow Tract Obstruction after Rastelli Type Operation for Cardiac Anomalies Associated with Transposed Aorta from the Right Ventricle
Tomoyuki Minami ; Yusuke Matsuki ; Tomoki Choh ; Keiichiro Kasama ; Hideyuki Iwaki ; Shinichi Suzuki ; Yukihisa Isomatsu ; Munetaka Masuda
Japanese Journal of Cardiovascular Surgery 2010;39(5):242-245
Intracardiac repair for cardiac anomalies associated with a transposed aorta from the right ventricle is a technically demanding operation. We present two cases of left ventricular outflow tract (LVOT) obstruction after the use of an ePTFE flat patch to reconstruct the LVOT. Case 1 : A 10-year-old boy had undergone the Rastelli operation, VSD enlargement, and intraventricular re-routing using an ePTFE flat patch for repair of the DORV with noncommitted VSD and pulmonary stenosis at the age of 5. Five years later, catheter examination revealed severe LVOT obstruction. Intraventricular re-routing using a part of the ePTFE graft concomitant with re-replacement of an extracardiac conduit was successfully performed. Case 2 : A 13-year-old girl had undergone a double-switch operation (Senning operation, the Rastelli operation, and intraventricular re-routing by the use of an ePTFE flat patch) for the repair of corrected TGA, PA and VSD at the age of 7. Six years later, catheter examination revealed severe LVOT obstruction. Intraventricular re-routing using part of the ePTFE graft concomitant with re-replacement of an extracardiac conduit was successfully performed. We consider that the use of a flat patch for reconstruction of a left ventricular out flow tract in cases with transposition of the aorta from the right ventricle involves a risk of future development of LVOT obstruction.
4.Two Cases of Aortic Regurgitation with Dove-coo Murmur: Operative Findings of the Valves.
Yoshihiko SAKURAI ; Shunichi INAMURA ; Tomoyuki MINAMI ; Shirosaku KOIDE ; Shiaki KAWADA ; Akira SHOHTSU
Japanese Journal of Cardiovascular Surgery 1992;21(1):87-90
We describe two cases of aortic regurgitation with dove-coo murmur that required aortic valve replacements. In the first case, there were three small perforations of the cusps, two in the noncoronary cusp and one in the right coronary cusp. The cause of the cusp perforations was unclear. In the second case, there were two perforations of the cusps, one in the left coronary cusp and another small one in the right coronary cusp, along with a subannular pseudoaneurysm. The cause of the cusp perforations was an infective endocarditis. Before 1955, aortic regurgitations with dove-coo murmur were mostly reported to be originated by retroversion of the valve cusps due to syphilis. After 1960, syphilis was replaced by various diseases that bring about perforations, tears and retroversions of the cusps. The condition which is concerned in the development of the dove-coo murmur is that the aortic valve cusps have lesions without calcification and preserve the flexibility.
5.Do care activities by elderly people lead to an increased sense of purpose in life?
Shota Kuroiwa ; Keiichiro Kita ; Fumiko Watanabe ; Taro Miura ; Maiko Kuroiwa ; Tomoyuki Koura ; Kiichiro Yoshida ; Shinji Minami ; Seiji Yamashiro
An Official Journal of the Japan Primary Care Association 2016;39(2):116-121
Introduction : This study aimed to clarify the relationship between the presence of someone to care for and the subjective QOL (quality of life) of local elderly people.
Methods : Data for 7,728 residents aged 65 and above was obtained from the everyday life sphere needs survey implemented by the government of Nanto City, Toyama Prefecture, between May to July, 2014. Multiple logistic regression analysis was conducted to evaluate the relationship between two sets of variables : first, the presence (or absence) of “something to live for”, “sense of fulfillment”, and “self-esteem” as indicators of the respondents'subjective QOL ; and second, a set of explanatory variables (common to all models) including the presence of someone to care for, indicators of the personal attributes, health, and life style of the respondents.
Results : The presence of someone to care for was positively related to the presence of “something to live for,” “sense of fulfillment,” and “self-esteem,” which were indicators of subjective QOL, even after several indicators of personal attributes, health, and life style were accounted for.
Conclusion : Promoting mutual help in local areas has a positive significance for those elderly who take care of others, as well as for those who accept care. The results also suggest the social importance of being the recipient of care in the elderly.
6.A Patient Who Underwent Mitral Annuloplasty for Mitral-Valve Insufficiency due to Calcification of the Mitral-Valve Annulus
Tomoyuki Minami ; Kiyotaka Imoto ; Shin-ichi Suzuki ; Keiji Uchida ; Norihisa Karube ; Koichiro Date ; Motohiko Goda ; Toshiki Hatsune ; Munetaka Masuda
Japanese Journal of Cardiovascular Surgery 2007;36(6):333-336
A 74-year-old woman presented with shortness of breath. Cardiac ultrasonography showed that left-ventricular-wall motion was good (left ventricular ejection fraction, 70.2%). The left atrium and ventricle were enlarged (left anterior dimension, 53.4mm; left ventricular enddiastolic dimension, 58.5mm). The posterior cusp of the mitral valve was thickened; the flexibility was decreased. Color Doppler ultrasonography revealed a regurgitant jet toward the posterior cusp of the left atrium. However, there was no deviation of the anterior cusp. Severe mitral-valve insufficiency was diagnosed, and surgery was performed. The second heart sound (P2) of the posterior cusp was shortened because of localized calcification of the posterior mitral annulus. This site may have caused the regurgitation. Mitral annuloplasty with rectangular resection of the valve cusps and annulorrhaphy was performed. The patient had an uneventful recovery after surgery. Postoperative cardiac ultrasonography showed that mitral-valve insufficiency had improved and was regarded as trivial. Mitral annuloplasty is generally considered unsuitable for mitral-valve insufficiency with calcification of the valve annulus. In patients such as the present case who have localized calcification, however, mitral annuloplasty can be performed by resection of the valve cusps with annulorrhaphy.
7.Mitral Valve Replacement while Preserving Calcified Annulus in Severe Mitral Annular Calcification
Hiroya MATABE ; Tomoyuki MINAMI ; Naoto YABU ; Ichiya YAMAZAKI ; Shinichi SUZUKI
Japanese Journal of Cardiovascular Surgery 2022;51(5):300-303
A 70-years-old woman who had been on hemodialysis for 8 years was referred to our institution to undergo mitral surgery for mitral valve stenosis. Intraoperative investigations confirmed severe calcification of the posterior mitral leaflet and all-around mitral annulus. We excised the mitral leaflet using the Ultrasonic Surgical System and preserved the calcified annulus to prevent a fatal complication such as left ventricular rupture. We passed 2-0 polyester mattress sutures through the calcified annulus from the left ventricle to the left atrium, and mitral valve replacement was performed using a reversed 19 mm On-X mechanical heart valve for the aortic valve. The postoperative course was uneventful. Mitral annular calcification is a factor of fatal complications such as left ventricle rupture and coronary artery injury. We succeeded in preserving the calcified annulus and using a small diameter mechanical heart valve.
8.Risk Factors for Loosening of S2 Alar Iliac Screw: Surgical Outcomes of Adult Spinal Deformity
Yasushi IIJIMA ; Toshiaki KOTANI ; Tsuyoshi SAKUMA ; Keita NAKAYAMA ; Tsutomu AKAZAWA ; Shunji KISHIDA ; Yuta MURAMATSU ; Yu SASAKI ; Keisuke UENO ; Tomoyuki ASADA ; Kosuke SATO ; Shohei MINAMI ; Seiji OHTORI
Asian Spine Journal 2020;14(6):864-871
Methods:
Cases of 50 patients with ASD who underwent long spinal fusion (>9 levels) with S2AI screws were retrospectively reviewed. Loosening of S2AI screws and S1 pedicle screws and bone fusion at the level of L5–S1 at 2 years after surgery were investigated using computed tomography. In addition, risk factors for loosening of S2AI screws were determined in patients with ASD.
Results:
At 2 years after surgery, 33 cases (66%) of S2AI screw loosening and six cases (12%) of S1 pedicle screw loosening were observed. In 40 of 47 cases (85%), bone fusion at L5–S1 was found. Pseudarthrosis at L5–S1 was not significantly associated with S2AI screw loosening (19.3% vs. 6.3%, p=0.23), but significantly higher in patients with S1 screw loosening (83.3% vs. 4.9%, p<0.001). On multivariate logistic regression analyses, high upper instrumented vertebra (UIV) level (T5 or above) (odds ratio [OR], 4.4; 95% confidence interval [CI], 1.0–18.6; p=0.045) and obesity (OR, 11.4; 95% CI, 1.2–107.2; p=0.033) were independent risk factors for S2AI screw loosening.
Conclusions
High UIV level (T5 or above) and obesity were independent risk factors for S2AI screw loosening in patients with lumbosacral fixation in surgery for ASD. The incidence of lumbosacral fusion is associated with S1 screw loosening, but not S2AI screw loosening.