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Journal and News Scan

Source: AORTA, August 2016, Volume 4, Issue 4:124-130
Author(s): Curtis AE, Smith TA, Ziganshin BA, Elefteriades JA
A comprehensive discussion on an important parameter for cardiologists and surgeons dealing with congenital and structural / valve disease, as applicable to the systemic circulation 
Source: The Thoracic and Cardiovascular Surgeon
Author(s): Henning Gaissert, Susan R. Wilcox
 This review discusses diaphragmatic disorders and postoperative respiratory failure caused by unilateral or bilateral diaphragmatic impairment. 
Source: European Journal Cardio-Thoracic Surgery
Author(s): Luis Angel Hernandez-Arenas, Lei Lin, Yang Yang, Ming Liu, William Guido, Diego Gonzalez-Rivas, Gening Jiang, and Lei Jiang
There is a rediscovered interest in use of a subxiphoid incision to perform lung surgery. This work follows a review of 105 lobectomies published in March 2016 in the Journal of Thoracic Disease from the same institution, Shanghai Pulmonary Hospital. Although technical limitations exist when compared with transthoracic VATS and despite patient selction being more restrictive than for traditional surgery, the authors demonstrate the feasibility of anatomical lung resection for benign or malignant disease through the subxyphoid port. The conversion rate is acceptable (5.2%) and no post operative mortality in 153 cases (lobectomies and segmental resections) was observed. One of the main outcomes considered is post operative pain.
Source: The Journal of Thoracic and Cardiovascular Surgery
Author(s): Blackstone EH
A most easily read brief editorial explaining in simple terms the power of a study, bootstrapping and the CLINICAL significance of risk factors in multivariate analysis. The author explains that the number of events defines the effective desirable sample size, not the number of individuals included in studies.
Source: The American Journal of Cardiology
Author(s): Nara Y, Watanabe Y, Kozuma K, Kataoka A, Nakashima M, Hioki H, Kawashima H, Nagura F, Shirai S, Tada N, Araki M, Naganuma T, Yamanaka F, Yamamoto M, Hayashida K.
The authors report on their findings an ongoing Japanese multicentre prospective registry. They evaluate outcomes in 478 patients undergoing transfemoral  TAVI and treated with percutaneous puncture using an expandable sheath, Edwards Sapien XTprosthesis and a Perclose ProGlide system. The primary outcome was percutaneous closure device (PCD) failure. The secondary outcome was the relation between PCD failure and the clinical outcomes (30-day and mid-term mortality rates and the length of hospital stay). PCD failures occurred in 36 patients (8%) and were not associated with the 30-day or the mid-term mortality rates. PCD failures can be predicted by the sheath-to-femoral artery ratio (SFAR). An SFAR threshold of ≥ 1.03 is the recommended cut-off point when PCD and an eSheath are used. Thus, this cut-off value may contribute to the selection of the sheath size, vascular access site, and method of approach.
Source: Journal of Cardiac Surgery
Author(s): Piotr Mazur, Salvior Mok, Amar Krishnaswamy, Samir Kapadia, Jose L. Navia
Mitral valve disruption is a rare but serious complication of MitraClip insertion. This review provides an update on surgical interventions following MitraClip failure, and discusses possible valve injuries and surgical approaches.
Source: Journal of Cardiac Surgery
Author(s): Zhiwei Xu, Qiuxia Shi, Ju Mei, Yan Tan
This study examines the outcomes of bioprosthetic tricuspid valve replacement in patients with tricuspid valve infective endocarditis. Full text available.   
Source: Annals of Thoracic Surgery
Author(s): Alfonso Fiorelli, Giovanni Messina, Paolo Chiodini, Saveria Costanzo, Andrea Viggiano, Marcellino Monda, Giovanni Vicidomini, Mario Santini
Physiologic changes associated with sympathectomy for palmar hyperhidrosis were assessed in this randomized trial comparing T3 ganglionectomy to division of the sympathetic chain at T2 and T3.  Outcomes were assessed using Holter monitoring.  Clinical outcomes were similar between the groups.  Electrophysiologic changes representing vagal activity measurements were more common in the ganglionectomy group.
Source: Annals of Thoracic Surgery
Author(s): Changping Gan, Ling Peng, Zhonglei Liang, Haibo Song, Jiahuang Yang, Weiqiang Ruan, Shuhua Luo, Ke Lin
Sixteen patients underwent percutaneous placement of a VSD closure device for management of subarterial VSD with puncture through the chest wall and infundibulum of the RV.  Fifteen were successful, and 1 patient required conversion to mini-thoracotomy for pericardial effusion and tamponade.  Mean LOS was 3.5 days.  No deaths, arrhythmias, valve injury, or residual shunting occurred up to 1 year follow-up.
Source: Annals of Thoracic Surgery
Author(s): Todd C. Crawford, J. Trent Magruder, Joshua C. Grimm, Alejandro Suarez-Pierre, Christopher M. Sciortino, Kaushik Mandal, Kenton J. Zehr, John V. Conte, Robert S. Higgins, Duke E. Cameron, Glenn J. Whitman
This single institution retrospective study analyzed the effects of single vs multiple complications on acute outcomes to help identify interactions among complications that might predict outcomes.  Over a 4 year period 366 pts experienced a complication and 102 of these had 2 or more complications.  Multiple complications were associated with mortality in 41% compared to 5% in those with one complication and 0.7% in those without complications.  The number of complications was correlated with increased LOS and discharge to other than home.  Interactions were evident among all complications, with the combination of renal failure and unplanned reoperation being associated with an OR for increased deaths of 108 (13.5 to 869).

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