SCAI stage reclassification at 24 h predicts outcome of cardiogenic shock: Insights from the Altshock-2 registry.

BACKGROUND: Cardiogenic shock (CS) includes several phenotypes with heterogenous hemodynamic features. Timely prognostication is warranted to identify patients requiring treatment escalation. We explored the association of the updated Society for Cardiovascular Angiography and Interventions (SCAI) stages classification with in-hospital mortality using a prospective national registry. METHODS: Between March 2020 and February 2022 the Altshock-2 Registry has included 237 patients with CS of all etiologies at 11 Italian Centers. Patients were classified according to their admission SCAI stage (assigned prospectively and independently updated according to the recently released version). In-hospital mortality was evaluated for association with both admission and 24-h SCAI stages. RESULTS: The overall in-hospital mortality was 38%. Of the 237 patients included and staged according to the updated SCAI classification, 20 (8%) had SCAI shock stage B, 131 (55%) SCAI stage C, 61 (26%) SCAI stage D and 25 (11%) SCAI stage E. In-hospital mortality stratified according to the SCAI classification at 24 h was 18% for patients in SCAI stage B, 27% for SCAI stage C, 63% for SCAI stage D and 100% for SCAI stage E. Both the revised SCAI stages on admission and at 24 h were associated with in-hospital mortality, but the classification potential slightly increased at 24-h. After adjusting for age, sex, lactate level, eGFR, CVP, inotropic score and mechanical circulatory support [MCS], SCAI classification at 24 h was an independent predictor of in-hospital mortality. CONCLUSIONS: In the Altshock-2 registry the utility of SCAI shock stages to identify risk of in-hospital mortality increased at 24 h after admission. Escalation of treatment (either pharmacological or with MCS) should be tailored to achieve prompt clinical improvement within the first 24 h after admission. Registration: http://www. CLINICALTRIALS: gov; Unique identifier: NCT04295252.

Role of Lithotripsy for Small Calcified Iliacs in the Era of Big Devices.

PURPOSE OF REVIEW: In recent years, transcatheter aortic valve replacement (TAVR) and percutaneous mechanical circulatory support (MCS) systems have seen a widespread diffusion. These devices require the insertion of large femoral sheaths in a population of patients often presenting with calcific peripheral artery disease. Small and severely calcified iliac vessels are associated with increased risk of vascular complications or strategy changes such as the use of an alternative subclavian or transapical approach for TAVR or a conversion to surgery. Intravascular lithotripsy (IVL) technology applies mechanical pressure waves to modify vessel calcifications. It has been applied both in coronary and peripheral calcific disease with promising results. The use in vessel preparation before the insertion of large sheaths is an emerging application of this device. RECENT FINDINGS: After case reports and presentations of isolated cases, two multicenter registries collected 42 and 12 patients treated with peripheral IVL before TAVR and MCS insertion. In most cases, the largest balloons were used in the iliac arteries with success achieved directly or using a separate insertion sheath in all cases. Low-pressure dilatation during energy delivery avoided dissections or vessel ruptures with no need of postprocedural stent implantation or emergency surgical repair. IVL can successfully modify the arterial compliance and facilitate transfemoral delivery of TAVR or MCS in patients with calcified iliofemoral vessels, reducing the need for alternative TAVR access routes and allowing to perform high-risk coronary procedures with adequate support.

Transitioning to Palliative Care in an Italian Cardiac Intensive Care Unit Network.

BACKGROUND: Recent data indicate that end-of-life management for patients affected by acute decompensated heart failure in cardiac intensive care units is aggressive, with late or no engagement of palliative care teams. OBJECTIVE: To assess current palliative care and end-of-life practices in a contemporary Italian multicenter registry of patients with cardiogenic shock due to acute decompensated heart failure. METHODS: A survey-based approach was used to collect data on palliative care and end-of-life management practices. The AltShock-2 registry enrolled patients with cardiogenic shock from 12 participating centers. A subset of 153 patients with cardiogenic shock due to acute decompensated heart failure enrolled between March 2020 and March 2023 was analyzed, with a focus on early engagement of palliative care teams and deactivation of implantable cardioverter-defibrillators (ICDs). RESULTS: "Do not resuscitate" orders were documented in patient records in only 5 of 12 centers (42%). Palliative care teams were engaged for 21 of 153 enrolled patients (13.7%). Among the 51 patients with ICDs, 6 of 17 patients who died (35%) had defibrillator deactivation. Of the 17 patients who died, 13 died in the hospital and 4 died within 6 months after discharge; 1 patient had ICD deactivation supported by palliative care services at home. CONCLUSIONS: Therapy-limiting practices, including ICD deactivation, are not routine in the Italian centers participating in this study. The results emphasize the importance of integrating palliative care as a simultaneous process with intensive care to address the unmet needs of these patients and their families.

Intravascular lithotripsy for calcific coronary and peripheral artery stenoses.

Heavily calcified lesions may be difficult to dilate adequately with conventional balloons and stents, which causes frequent periprocedural complications and higher rates of target lesion revascularisation (TLR). High-pressure non-compliant balloon angioplasty may be of insufficient force to modify calcium and, even when successful, may be limited in its ability to modify the entire calcified lesion. Scoring and cutting balloons hold theoretical value but data to support their efficacy are lacking and, because of their high lesion crossing profile, they often fail to reach the target lesion. Rotational and orbital atherectomy target superficial calcium; however, deep calcium, which may still impact on vessel expansion and luminal gain, is not affected. Intravascular lithotripsy (IVL), based on lithotripsy for renal calculi, is a new technology which uses sonic pressure waves to disrupt calcium with minimal impact to soft tissue. Energy is delivered via a balloon catheter, analogous to contemporary balloon catheters, with transmission through diluted ionic contrast in a semi-compliant balloon inflated at low pressure with sufficient diameter to achieve contact with the vessel wall. With coronary and peripheral balloons approved in Europe, peripheral balloons approved in the USA and multiple new trials beginning, we review the indications for these recently introduced devices, summarise the clinical outcomes of the available trials and describe the design of ongoing studies.

A local network for extracorporeal membrane oxygenation in refractory cardiogenic shock.

BACKGROUND: Veno-arterial extracorporeal membrane oxygenation (VA ECMO) represents a therapeutic option in patients with refractory cardiogenic shock (RCS). This strategy is limited to a restricted number of centres with capabilities for implanting VA ECMO and management patients on this support. We report on the initial experience of our ECMO referral centre for patients with RCS. METHODS: We retrospectively analysed our ECMO data registry for RCS of 14 patients treated with VA ECMO, consecutively admitted to our intensive cardiac care unit (ICCU), which is an ECMO referral centre. RESULTS: Six patients (6/14, 42%) came from peripheral centres, four were transferred to our ICCU directly. During ICCU stay, four patients died (28.5%) due to multi-organ failure, seven showed a complete recovery while one underwent cardiac transplantation. The remaining two patients died while waiting for cardiac transplantation because of cerebral haemorrhage. The 30-day overall mortality rate was 42.8%, all survivors showed a good neurologic outcome. CONCLUSIONS: In our series, the survival rate of RCS patients supported by VA ECMO is high (57%) and the transfer of RCS patients is feasible and safe. Our data support that a network for RCS is needed to transfer patients in well experienced centres even on ECMO support.

Lactate and lactate clearance in acute cardiac care patients.

Hyperlactataemia is commonly used as a diagnostic and prognostic tool in intensive care settings. Recent studies documented that serial lactate measurements over time (or lactate clearance), may be clinically more reliable than lactate absolute value for risk stratification in different pathological conditions. While the negative prognostic role of hyperlactataemia in several critical ill diseases (such as sepsis and trauma) is well established, data in patients with acute cardiac conditions (i.e. acute coronary syndromes) are scarce and controversial. The present paper provides an overview of the current available evidence on the clinical role of lactic acid levels and lactate clearance in acute cardiac settings (acute coronary syndromes, cardiogenic shock, cardiac surgery), focusing on its prognostic role.