Publications by authors named "Hayato Taniguchi"

Article Synopsis
  • - ECPR can enhance survival and neurological recovery for patients suffering from out-of-hospital cardiac arrest (OHCA), but elevated levels of arterial oxygen can hinder these outcomes, particularly in the context of targeted temperature management (TTM).
  • - This study analyzed data from a larger registry of ECPR cases, focusing on the impact of prolonged hyperoxemia, defined as a partial pressure of arterial oxygen (PaO) of 300 mmHg or higher, during the initial days of intensive care.
  • - Findings indicate that prolonged hyperoxemia negatively affects both survival and neurological recovery post-ECPR, with factors such as age and initial heart rhythm also playing critical roles in patient outcomes.
View Article and Find Full Text PDF

Background:  Complications during veno-venous extracorporeal membrane oxygenation (VV-ECMO) are associated with in-hospital mortality. Asian patients on extracorporeal membrane oxygenation (ECMO) have higher risks of bleeding and in-hospital mortality than Caucasian patients. This study aimed to characterize and identify bleeding complications and their associated factors related to in-hospital mortality in patients with severe coronavirus disease 2019 (COVID-19) requiring VV-ECMO in Japan.

View Article and Find Full Text PDF
Article Synopsis
  • The miniaturization of ultrasound scanners has led to the rise of point-of-care ultrasonography (POCUS), allowing bedside use for quick clinical decision-making, especially in emergencies.
  • In Japan, while POCUS is becoming more recognized globally, formal guidance was previously limited to trauma assessments and central venous procedures.
  • The Japanese Association for Acute Medicine has now established comprehensive clinical guidance for POCUS, addressing its principles and applications in emergency care, which aims to enhance ultrasound education and the quality of acute medical services in Japan.
View Article and Find Full Text PDF

Aim: To evaluate whether establishing an extracorporeal membrane oxygenation (ECMO) specialist team, termed the Yokohama Advanced Cardiopulmonary Help Team (YACHT), affected the outcomes and centralization of patients requiring ECMO in Yokohama-Yokosuka regions.

Methods: This retrospective observational study included patients aged ≥18 years and treated with venovenous-ECMO for severe acute respiratory distress syndrome (ARDS) from 2014 to 2023. The primary outcome was intensive care unit (ICU) mortality.

View Article and Find Full Text PDF
Article Synopsis
  • The study examined chest CT findings in patients with severe acute respiratory distress syndrome (ARDS) undergoing veno-venous extracorporeal membrane oxygenation (V-V ECMO) across 24 hospitals in Japan.
  • Among 582 patients who had chest CT at V-V ECMO initiation, traction bronchiectasis and subcutaneous emphysema were associated with increased 90-day mortality, while patients with traction bronchiectasis were less likely to be successfully liberated from ECMO.
  • The findings suggest that certain chest CT features can provide important prognostic information and may be useful for predicting outcomes in severe ARDS patients on V-V ECMO.
View Article and Find Full Text PDF

Purpose: The effect of a prophylactic distal perfusion catheter (DPC) after extracorporeal cardiopulmonary resuscitation (ECPR) in patients with out-of-hospital cardiac arrest (OHCA) remains unclear. Therefore, we aimed to clarify the association between prophylactic DPC and prognosis in patients with OHCA undergoing ECPR.

Materials And Methods: A secondary analysis of the Study of Advanced Life Support for Ventricular Fibrillation with Extracorporeal Circulation in Japan (SAVE-J II) database was performed to compare groups of patients with and without prophylactic DPCs.

View Article and Find Full Text PDF

Aim: Although the obesity paradox is known for various diseases, including cancer and acute respiratory distress syndrome, little is known about veno-venous extracorporeal membrane oxygenation (VV-ECMO) in patients with coronavirus disease 2019 (COVID-19). In this study, we aimed to investigate the association between body mass index (BMI) and prognosis in critical patients with COVID-19 requiring VV-ECMO.

Methods: We conducted a retrospective observational single-center study at Yokohama City University Civic General Medical Center between March 2020 and October 2021.

View Article and Find Full Text PDF

Introduction: Iliopsoas haematoma (IPH) during extracorporeal membrane oxygenation (ECMO) is a rare bleeding complication that can be fatal due to its progression to abdominal compartment syndrome, but its incidence and risk factors are not well known. We have previously reported an IPH incidence rate of 16% in Japan. Among possible reasons for this high incidence, ethnicity has been hypothesised to play a role.

View Article and Find Full Text PDF

This paper proposes a method to determine the elasticity of the lung parenchyma from the B-line Doppler signal observed using continuous shear wave elastography, which uses a small vibrator placed on the tissue surface to propagate continuous shear waves with a vibration frequency of approximately 100 Hz. Since the B-line is generated by multiple reflections in fluid-storing alveoli near the lung surface, the ultrasonic multiple-reflection signal from the B-line is affected by the Doppler shift due to shear waves propagating in the lung parenchyma. When multiple B-lines are observed, the propagation velocity can be estimated by measuring the difference in propagation time between the B-lines.

View Article and Find Full Text PDF

Lung ultrasound (LUS), a rapid, bedside, goal-oriented diagnostic test, can be quantitatively assessed, and the scores can be used to evaluate disease progression. However, little data exists on predicting prolonged mechanical ventilation (PMV) and successful extubation using serial LUS scores. We examined the relationship of PMV with successful extubation in patients with severe coronavirus disease (COVID-19) by using two types of serial LUS scores.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates how changes in peripheral regional oxygen saturation (prSO) relate to the return of spontaneous circulation (ROSC) in patients who have experienced out-of-hospital cardiac arrest (OHCA).
  • Data was collected from 145 OHCA patients at two emergency centers in Japan, focusing on the timing of prSO and cerebral regional oxygen saturation (crSO) during resuscitation efforts.
  • Results revealed that prSO changes were significantly linked to ROSC and occurred earlier than changes in crSO, suggesting that monitoring prSO could aid in timely medical interventions for OHCA patients.
View Article and Find Full Text PDF

Aim: To describe the transport time and timing of transfer of patients with postpartum hemorrhage to a tertiary care institution in an urban area.

Methods: We included patients with postpartum hemorrhage transferred to our hospital from a perinatal care facility. We defined transfer time as the time between the referring physician's request for transfer and the patient's arrival at our hospital.

View Article and Find Full Text PDF

Background: Extravasation on contrast-enhanced computed tomography (CECT) is a helpful indicator of the need for transcatheter arterial embolization (TAE) for pelvic fractures. However, previous reports were inconsistent on cases in which angiography is necessary, even though there is no extravasation on computed tomography. This study aimed to describe and analyze the contradictory findings in cases where extravasation is observed on angiography but not on CECT, to contribute to improved management of patients with pelvic fractures.

View Article and Find Full Text PDF

Background: Coronavirus disease 2019 (COVID-19) pneumonitis associated with severe respiratory failure is associated with high mortality. The pathogenesis of COVID-19 is associated with microembolism or microvascular endothelial injuries. Here, we report that syndecan-1 (SDC-1), a component of the endothelial glycocalyx, may be a biomarker of severity classification for COVID-19 related to endothelial injury.

View Article and Find Full Text PDF
Article Synopsis
  • The COVID-19 pandemic led to increased reliance on mechanical ventilation (MV) and higher mortality rates, especially among severe cases needing ECMO.
  • Researchers analyzed data from 102 COVID-19 patients and found that specific biomarkers (SpO2/FiO2 ratio, IL-6 levels, and SARS-CoV-2 RNA) can predict poor outcomes after MV use.
  • Combining these biomarkers generates a high predictive accuracy for mortality, indicating that patients with poor SpO2/FiO2 and elevated IL-6 and SARS-CoV-2 RNA levels face a significantly increased risk of fatal events.
View Article and Find Full Text PDF

Computed tomography (CT) is the most reliable method to evaluate the progression of COVID-19 pneumonitis. However, in a pandemic, transportation of critically ill invasively ventilated patients to radiology facilities is challenging, especially for those on extracorporeal membrane oxygenation (ECMO). Notably, lung ultrasound (LUS) is a favored alternative imaging modality due to its ease of use at the point of care, which reduces the infectious risk of exposure and transmission; repeatability; absence of radiation exposure; and low cost.

View Article and Find Full Text PDF

Aim: Early judgments for treating severe trauma patients are essential for life-saving. Stress index (SI), obtained from a division of blood glucose level by serum potassium at arrival, might be useful for early prediction. However, the efficacy of SI was unknown.

View Article and Find Full Text PDF

Background: Iliopsoas hematoma occasionally occurs in patients receiving anticoagulation therapy. It may be a life-threatening complication and can cause disseminated intravascular coagulation, which could develop into abdominal compartment syndrome. The incidence of and factors associated with iliopsoas hematoma during venovenous extracorporeal membrane oxygenation (ECMO) have not been well studied.

View Article and Find Full Text PDF

Background: Veno-venous extracorporeal membrane oxygenation (VV-ECMO) is one of the ultimate treatments for acute respiratory failure. However, the effectiveness of ECMO in patients with novel coronavirus disease (COVID-19) is unknown.

Case Presentation: A 72-year-old woman who was a passenger of a cruise ship tested positive for the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) while in quarantine on board using throat swab.

View Article and Find Full Text PDF

Background: Resuscitative endovascular balloon occlusion of the aorta (REBOA) for patients with traumatic torso hemorrhagic shock is available to keep a minimum level of circulatory status as a bridge to definitive therapy. However, the trajectory for placement of REBOA in the aorta has not yet been clearly defined.

Methods: We conducted a retrospective observational cohort study in the two tertiary critical care and emergency center from December 2014 to October 2018.

View Article and Find Full Text PDF